CN115720489A - Freshness retaining device - Google Patents

Freshness retaining device Download PDF

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Publication number
CN115720489A
CN115720489A CN202180045728.4A CN202180045728A CN115720489A CN 115720489 A CN115720489 A CN 115720489A CN 202180045728 A CN202180045728 A CN 202180045728A CN 115720489 A CN115720489 A CN 115720489A
Authority
CN
China
Prior art keywords
lamp
photocatalyst
door
retaining device
freshness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202180045728.4A
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Chinese (zh)
Inventor
染井润一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ketaiguang Catalyst Co ltd
Original Assignee
Ketaiguang Catalyst Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ketaiguang Catalyst Co ltd filed Critical Ketaiguang Catalyst Co ltd
Publication of CN115720489A publication Critical patent/CN115720489A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/28—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nutrition Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Catalysts (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention provides a freshness retaining device (100) comprising: a case (101) for accommodating an object; a first lamp (130) which is disposed inside the case (101) and irradiates the inside of the case (101) with ultraviolet light; and a photocatalyst (121) disposed inside the case (101).

Description

Freshness retaining device
Technical Field
The present invention relates to a technique for maintaining freshness of food or the like by sterilizing and deodorizing air.
Background
In the past, devices for sterilizing and deodorizing air have been known. For example, japanese patent laid-open publication No. 2014-219130 (patent document 1) discloses a refrigerator using a photocatalyst. In japanese patent laid-open publication No. 2014-219130 (patent document 1), a catalyst base on which a photocatalyst is carried so as to be exposed is attached to a storage chamber side of a rear panel constituting a cold air passage, and a light emitting diode is provided on an inner surface of an inner case constituting the cold air passage so as to irradiate light toward the catalyst base. Since the catalyst base is provided in a part of the rear plate and the photocatalyst is excited by the light emitting diode provided in the inner case, the size of the catalyst base can be set arbitrarily, and a sufficient catalyst area can be secured. Therefore, odor components in the storage chamber having a large volume can be effectively deodorized or sterilized. Further, since the oxygen concentration in the storage compartment can be reduced by the carbon dioxide generated by the catalytic action of the photocatalyst, the vegetables can be stored in a fresh state for a long period of time while suppressing the respiration of the vegetables.
Prior art documents
Patent document 1: japanese patent laid-open publication No. 2014-219130
Disclosure of Invention
The invention aims to provide a freshness retaining device which retains the freshness of an object by performing sterilization of air and performing sterilization of the object itself.
According to one aspect of the present invention, there is provided a freshness retaining device comprising: a case for accommodating an object; a first lamp disposed inside the case and configured to irradiate ultraviolet rays to the inside of the case; and a photocatalyst disposed inside the case.
As described above, according to the present invention, there is provided a freshness retaining device that retains freshness of an object by performing sterilization of air and performing sterilization of the object itself.
Drawings
Fig. 1 is a perspective view showing the appearance of a freshness retaining device of a first embodiment.
Fig. 2 is a perspective view showing a front sectional view of the freshness retaining device of the first embodiment.
FIG. 3 is a perspective view showing a side sectional view of the freshness retaining device of the first embodiment.
Fig. 4 is a block diagram showing a control structure of the freshness retaining device of the first embodiment.
Fig. 5 is a diagram showing on/off control of the deep ultraviolet LED and the photocatalyst LED according to the first embodiment.
Fig. 6 is a flowchart showing a control process of the freshness retaining device of the first embodiment.
Fig. 7 is a diagram showing on/off control of the deep ultraviolet LED and the photocatalyst LED according to the second embodiment.
Fig. 8 is a diagram showing on/off control of the deep ultraviolet LED and the photocatalyst LED according to the second embodiment.
Fig. 9 is a sectional view showing a first photocatalyst unit of the third embodiment.
Fig. 10 is a sectional view showing a second photocatalyst unit of the third embodiment.
Fig. 11 is a sectional view showing a second photocatalyst unit of the third embodiment.
Fig. 12 is a rear view showing a second photocatalyst unit of the third embodiment.
FIG. 13 is a perspective view showing a side sectional view of a freshness retaining device of a fourth embodiment.
Fig. 14 is a perspective view showing a side sectional view of the freshness retaining device of the fifth embodiment.
Fig. 15 is a perspective view showing a side sectional view of the freshness retaining device of the fifth embodiment.
Fig. 16 is a sectional view showing a photocatalyst unit of the sixth embodiment.
Detailed Description
In the following description, the same components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
(first embodiment)
The overall structure of the freshness retaining device 100 of the present embodiment will be described with reference to fig. 1 to 3. Hereinafter, the upper side in fig. 1 is referred to as the upper side of the freshness retaining device 100, the lower side in fig. 1 is referred to as the lower side of the freshness retaining device 100, the front direction in fig. 1 is referred to as the front side of the freshness retaining device 100, the back direction in fig. 1 is referred to as the rear side of the freshness retaining device 100, the right direction in fig. 1 is referred to as the right side of the freshness retaining device 100, and the left direction in fig. 1 is referred to as the left side of the freshness retaining device 100.
The freshness retaining device 100 of the present embodiment is mainly constituted by a case 101 having a substantially rectangular parallelepiped shape. The sterilization target 200 such as food and sanitary goods is placed in the storage space inside the case 101.
A door 102 is provided on the front surface of the case 101. In the present embodiment, the door 102 is configured to open the storage space inside the box 101 by the user gripping the handle 103 and rotating forward. A door opening/closing sensor (see fig. 4) for detecting an open/close state of the door 102 is disposed behind the door 102.
In the present embodiment, a translucent glass window 102A is provided in the door 102. This allows the user to confirm the internal state of the casing 101.
A plurality of deep ultraviolet LEDs 130, 130 … … are provided inside the casing 101. For example, a plurality of deep ultraviolet LEDs 130, 130 … … are mounted on the top, right, left, and back surfaces, respectively. Thus, bacteria, viruses, and the like adhering to the surface of the object 200 to be sterilized placed inside the case 101 are inactivated to sterilize the object. The deep ultraviolet LEDs 130 and 130 … … are controlled by the control unit 140 (see fig. 4) and driven by electric power supplied through the power supply line 127A, USB and the cable 127B.
Further, a photocatalyst unit 120 is provided inside the case 101. In the present embodiment, the photocatalyst unit 120 is provided on the rear surface of the inner wall surface of the housing 101. The photocatalyst unit 120 mainly includes a photocatalyst 121, an LED122, a fan 125, and the like. The photocatalyst 121 is activated by light from the LED122. The fan 125 causes air in the housing 101 to flow on the surface of the photocatalyst 121. The photocatalyst 121 decomposes ethylene gas contained in the air passing through the surface thereof or inactivates viruses. The LED122 and the fan 125 are controlled by the control unit 140 (see fig. 4), and are driven by power supplied via a power supply line 127A, USB and a cable 127B or the like.
Fig. 4 shows a control structure of the freshness retaining device 100 of the present embodiment. The freshness retaining device 100 of the present embodiment mainly includes a control unit 140, LEDs 122, a fan 125, a deep ultraviolet LED130, and a door opening/closing sensor 105.
The control unit 140 is disposed, for example, near the photocatalyst unit 120, on the back surface of the case 101, on an operation panel provided near the door 102, or the like. The control unit 140 includes a processor 141, a memory 142, a timer 143, and the like, and controls each unit of the freshness retaining device 100 via a communication line. For example, the control unit 140 controls the LEDs 122 to be turned on/off, the fan 125 to be turned on/off, or the deep ultraviolet LEDs 130 to be turned on/off in accordance with a signal from the door opening/closing sensor 105.
In the present embodiment, as shown in fig. 5, the control unit 140 turns off the LED122, turns off the fan 125, and turns off the deep ultraviolet LED130 while the door 102 is open. When the door 102 is closed, the control unit 140 turns on the LED122 and turns on the fan 125. At this time, the deep ultraviolet LED130 remains off. When a first predetermined time, for example, 3 minutes, has elapsed, the control unit 110 turns on the deep ultraviolet LED 130. After that, when a second predetermined time, for example, 30 minutes or the like elapses, the control unit 110 turns off the deep ultraviolet LED 130.
More specifically, the processor 141 of the control unit 140 executes the following processing in accordance with the program of the memory 142. As shown in fig. 6, the control unit 140 determines whether the door 102 is open based on a signal from the door opening/closing sensor 105 (step S102).
When detecting that the door 102 is opened (in the case of yes in step S102), the control unit 140 turns off the deep ultraviolet LED130 (step S104) and turns off the LED122 of the photocatalyst 121 and the fan 125 (step S106). In addition, the LED122 and the fan 125 of the photocatalyst 121 may also be kept on.
The control unit 140 determines whether the door 102 is closed based on the signal from the door opening/closing sensor 105 (step S108).
When detecting that the door 102 is closed (in the case of yes at step S108), the control unit 140 turns on the LED122 of the photocatalyst 121 and the fan 125 (step S110).
The control unit 140 turns on the deep ultraviolet LED130 (step S114). The controller 140 may turn on the deep ultraviolet LED130 by the timer 143 after a first predetermined time, for example, 3 minutes, has elapsed since the door 102 was closed.
The control unit 140 determines whether or not a second predetermined time, for example, 30 minutes or the like, has elapsed since the deep ultraviolet LED130 was turned on, by using the timer 143 (step S116).
When the second predetermined time has elapsed (in the case of yes at step S116), the control unit 140 turns off the deep ultraviolet LED130 (step S118). The control unit 104 repeats the processing from step S102.
With such a configuration, in the freshness retaining device 100 of the present embodiment, bacteria, viruses, and the like adhering to the surface of the sterilization target object such as food are inactivated by deep ultraviolet rays, and therefore, the sterilization target object is less likely to decay, and ethylene gas contained in the air in the housing 101 is decomposed or viruses contained in the air are inactivated by the photocatalyst 121, and therefore, the sterilization target object is less likely to be damaged.
(second embodiment)
In the above embodiment, when the second predetermined time elapses after the deep ultraviolet LED130 is turned on, the deep ultraviolet LED130 is turned off. In addition to this configuration, as shown in fig. 7, the control unit 140 may intermittently operate the deep ultraviolet LED130 while the door 102 is closed. For example, the control unit 140 may turn on the deep ultraviolet LED130 for a second predetermined time every time a third predetermined time, for example, 2 hours, elapses while the door 102 is closed. Further, the deep ultraviolet LED130 may be turned on by turning on a dedicated switch.
Further, in addition to this configuration, as shown in fig. 8, the control unit 140 may intermittently operate the LED122 and the fan 125 of the photocatalyst 121. For example, the control unit 140 may turn on the LEDs 122 of the photocatalyst 121 and the fan 125 for a fifth predetermined time, for example, 1 hour, every time a fourth predetermined time, for example, 3 hours, elapses while the door 102 is closed or regardless of whether the door 102 is closed.
(third embodiment)
Alternatively, as shown in fig. 9, the photocatalyst 121 is disposed perpendicularly to the wind direction. The photocatalyst 121 is formed with a plurality of holes in the direction of the air flow, or is formed in a mesh shape, and the air to be sterilized passes through the plurality of holes. The LED130 is disposed downstream or upstream of the photocatalyst 121, illuminating the inside of the plurality of holes of the photocatalyst 121.
Alternatively, as shown in FIG. 10, FIG. 11, and FIG. 12, the fan 125 may be attached to the surface facing the rear surface of the freshness retaining device 100, and the rotation axis of the fan 125 may be perpendicular to the rear surface of the freshness retaining device 100. Further, the air may be sucked from the front of the fan 125 and may be flowed to the side of the fan 125, that is, to the outside of the photocatalyst unit 120.
(fourth embodiment)
In the above embodiment, the fan 125 for the photocatalyst 121 is mounted, but the fan 125 may not be provided. For example, as shown in fig. 13, in the present embodiment, a photocatalyst unit 120 is provided on the back side inside the case 101. The photocatalyst unit 120 includes a photocatalyst 121, an LED122, and the like. In the present embodiment, since the temperature near the photocatalyst 121 is increased by the LED122, the air around the photocatalyst 121 expands and rises, and as a result, the air inside the case 102 can be circulated slowly.
(fifth embodiment)
Although the LED122 for the photocatalyst 121 is mounted in the above embodiment, the LED122 for the photocatalyst 121 may not be provided. That is, the photocatalyst 121 may be activated by the light from the deep ultraviolet LED 130.
For example, as shown in fig. 14, in the present embodiment, a photocatalyst 121 is disposed on the rear surface of the case 101 as a position to which light from the deep ultraviolet LED130 is easily irradiated. In order to receive a large amount of light from the deep ultraviolet LED130, the photocatalyst 121 is preferably formed in a wide sheet shape.
Alternatively, as shown in fig. 15, the photocatalyst 121 may be disposed parallel to the top surface as a position to which light from the deep ultraviolet LED130 is easily irradiated. That is, the photocatalyst 121 is disposed parallel to the arrangement of the deep ultraviolet LEDs 130, 130. The photocatalyst 121 is preferably formed in a wide sheet shape, in a mesh shape so that the deep ultraviolet light reaches the object, or in a plurality of perforations.
As shown in fig. 14 and 15, a fan 125 is preferably provided on the surface of the photocatalyst 121 to facilitate air flow.
(sixth embodiment)
Alternatively, as shown in fig. 16, the photocatalyst 121 can be preferably detached from the photocatalyst unit 120 and the freshness retaining device 100 and washed. For example, in the present embodiment, the photocatalyst unit 120 is a substantially rectangular parallelepiped unit having rectangular suction ports and discharge ports in the upper and lower sides thereof. The photocatalyst unit 120 is detachably attached to the inner wall surface of the freshness retaining device 100. The photocatalyst 121 is detachable from the bottom surface of the housing of the photocatalyst unit 120 (the back surface side of the freshness retaining device 100), or is detachable from other parts of the photocatalyst unit 120. The electric power of the fan 125 and the LED130 is obtained from the freshness retaining device 100 via the electrode on the back surface of the photocatalyst unit 120.
(conclusion)
In the above embodiment, there is provided a freshness retaining device including: a case for accommodating an object; a first lamp disposed inside the case and configured to irradiate ultraviolet rays to the inside of the case; and a photocatalyst disposed inside the case.
Preferably, the freshness retaining device further includes a fan for causing air in the case to flow on the surface of the photocatalyst.
Preferably, the photocatalyst treatment apparatus further includes a second lamp for irradiating the photocatalyst with light.
Preferably, the cabinet includes a door. The freshness retaining device further includes: a sensor for detecting opening and closing of the door; and a control section for controlling the first lamp and the second lamp. The control unit turns off the first lamp and the second lamp while the door is open, turns on the first lamp when the door is closed, and turns on the second lamp after a predetermined time has elapsed.
Preferably, the cabinet includes a door. The freshness retaining device further includes: a sensor for detecting opening and closing of the door; and a control section for controlling the first lamp and the second lamp. The control unit turns off the first lamp and the second lamp while the door is open, turns on the first lamp and the second lamp when the door is closed, and turns off the second lamp after a predetermined time, but keeps turning on the first lamp.
The freshness retaining device further includes a control unit for controlling the first lamp and the second lamp. The control unit continuously lights the second lamp and intermittently lights the first lamp.
The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined not by the above description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.
Description of reference numerals:
100: a freshness-retaining means; 101: a box body; 102: a door; 103: a handle; 105: a door opening/closing sensor; 110: a control unit; 120: a photocatalyst unit; 121: a photocatalyst; 122: an LED for photocatalyst; 125: a fan; 127A: a power line; 127B: a USB cable; 130: a deep ultraviolet LED;140: a control unit; 141: a processor; 142: a memory; 143: a timer.

Claims (6)

1. A freshness retaining device is characterized by comprising:
a box body for accommodating an object;
a first lamp disposed inside the housing and configured to irradiate ultraviolet rays into the housing; and
and a photocatalyst disposed inside the case.
2. The freshness-retention device according to claim 1,
the freshness retaining device further includes a fan for causing air in the case to flow on the surface of the photocatalyst.
3. The freshness-retaining device according to claim 1 or 2,
the freshness retaining device further includes a second lamp for irradiating the photocatalyst with light.
4. The freshness-retention device according to claim 3,
the box body comprises a door, and the door is arranged on the box body,
the freshness retaining device further includes:
a sensor that detects opening and closing of the door; and
a control section for controlling the first lamp and the second lamp,
the control unit turns off the first lamp and the second lamp while the door is open, turns on the first lamp when the door is closed, and turns on the second lamp after a predetermined time has elapsed.
5. The freshness-retention device according to claim 3,
the box body comprises a door, and the door is arranged on the box body,
the freshness retaining device further includes:
a sensor that detects opening and closing of the door; and
a control section for controlling the first lamp and the second lamp,
the control unit turns off the first lamp and the second lamp while the door is open, turns on the first lamp, turns on the second lamp, and turns off the second lamp after a predetermined time period, but keeps turning on the first lamp when the door is closed.
6. The freshness-retaining device according to any one of claims 3 to 5,
the freshness retaining device further comprises a control unit for controlling the first lamp and the second lamp,
the control unit causes the second lamp to be continuously turned on and causes the first lamp to be intermittently turned on.
CN202180045728.4A 2020-07-30 2021-07-27 Freshness retaining device Pending CN115720489A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020-129174 2020-07-30
JP2020129174A JP2022025957A (en) 2020-07-30 2020-07-30 Freshness keeping device
PCT/JP2021/027759 WO2022025064A1 (en) 2020-07-30 2021-07-27 Freshness keeping device

Publications (1)

Publication Number Publication Date
CN115720489A true CN115720489A (en) 2023-02-28

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ID=80036639

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180045728.4A Pending CN115720489A (en) 2020-07-30 2021-07-27 Freshness retaining device

Country Status (3)

Country Link
JP (1) JP2022025957A (en)
CN (1) CN115720489A (en)
WO (1) WO2022025064A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000007128A (en) * 1999-11-29 2000-02-07 박종근 Contrivance for fresh fish
JP2009027970A (en) * 2007-07-26 2009-02-12 Panasonic Electric Works Co Ltd Storage
JP2014213251A (en) * 2013-04-24 2014-11-17 株式会社タカトリ Led photocatalyst unit, and food storage device using the same
KR20170003283A (en) * 2015-06-30 2017-01-09 서울바이오시스 주식회사 Apparatus for Freshening and Purifying Air and Controlling Method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000007128A (en) * 1999-11-29 2000-02-07 박종근 Contrivance for fresh fish
JP2009027970A (en) * 2007-07-26 2009-02-12 Panasonic Electric Works Co Ltd Storage
JP2014213251A (en) * 2013-04-24 2014-11-17 株式会社タカトリ Led photocatalyst unit, and food storage device using the same
KR20170003283A (en) * 2015-06-30 2017-01-09 서울바이오시스 주식회사 Apparatus for Freshening and Purifying Air and Controlling Method thereof
CN107709904A (en) * 2015-06-30 2018-02-16 首尔伟傲世有限公司 Purification of air preservation device and its control method

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WO2022025064A1 (en) 2022-02-03
JP2022025957A (en) 2022-02-10

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