CN107126285A - A kind of electric toothbrush - Google Patents
A kind of electric toothbrush Download PDFInfo
- Publication number
- CN107126285A CN107126285A CN201710301592.4A CN201710301592A CN107126285A CN 107126285 A CN107126285 A CN 107126285A CN 201710301592 A CN201710301592 A CN 201710301592A CN 107126285 A CN107126285 A CN 107126285A
- Authority
- CN
- China
- Prior art keywords
- brush
- shell fragment
- brush holder
- rotating seat
- electromagnet
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
- A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
A kind of electric toothbrush.It is related to power toothbrush structure field, more particularly to the wherein improvement of brush drive mechanism.Propose the electric toothbrush that a kind of delicate structure, stability are good, cleaning of teeth effect is good and manufacturing cost is low, use cost is low.Including brush, brush holder, drive mechanism and battery, the brush is connected to one end of brush holder, and the drive mechanism is connected between brush and battery and for driving brush rotation；One end of shell fragment described in two is fixedly connected with the sliding block dorsad side of the electromagnet and other end is respectively fixedly connected with the both sides at the center of rotating seat；The limit assembly connects the brush holder and connection rotating seat or shell fragment, for preventing length direction translation of the shell fragment along brush holder.Angle between shell fragment described in two is acute angle.The present invention has the advantages that delicate structure, stability is good, cleaning of teeth effect is good and manufacturing cost is low, use cost is low on the whole.
Description
Technical field
The present invention relates to power toothbrush structure field, more particularly to the wherein improvement of brush drive mechanism.
Background technology
At present, electric toothbrush be divided into mostly rotatably with the major class of oscillatory type two, wherein rotary electric toothbrush is by motor
The circular brush rotation of driving, so as to strengthen friction effect while ordinary toothbrush action is performed；And oscillating electric tooth-brush is then
It is to drive brush to carry out swing in high frequency by vibrating motor, so as to carry out high-efficiency cleaning to teeth space dirt.
However, either electric rotating machine or vibrating motor, it is respectively provided with certain service life and made with high
Valency, so that the price of conventional power toothbrush can be in any more all the time, great shadow is brought to promoting the use of for electric toothbrush
Ring, at the same time, due to people turning to, change sides to electric rotating machine or vibrating motor frequently close, starts often, because
This so that the service life of the core driving of electric toothbrush is significantly reduced, and the use cost to electric toothbrush brings extra
Increase.
The content of the invention
The present invention is directed to problem above, it is proposed that a kind of delicate structure, stability are good, cleaning of teeth effect is good and is manufactured into
The low electric toothbrush of this low, use cost.
The technical scheme is that：Including brush, brush holder, drive mechanism and battery, the brush is connected to brush holder
One end, the drive mechanism is connected between brush and battery and for driving brush rotation；
The drive mechanism includes electromagnet, sliding block, rotating seat, limit assembly and two pieces of shell fragments, and the electromagnet is fixedly connected
It is connected in brush holder and with battery, the sliding block is slidably connected in brush holder and gap is left between electromagnet, described
Rotating seat is movably connected in one end of brush holder and is connected with brush；
One end of shell fragment described in two is fixedly connected with sliding block that dorsad the side of electromagnet and the other end are respectively fixedly connected with rotation
The both sides at the center of swivel base；The limit assembly connects the brush holder and connection rotating seat or shell fragment, for preventing the shell fragment
Translated along the length direction of brush holder.
Angle between shell fragment described in two is acute angle.
The limit assembly is a pair of stopper slots, and the stopper slot is opened on the inwall of brush holder and is socketed in two respectively
The middle part of the shell fragment.
Space is left between shell fragment described in two, the limit assembly is limit shaft, one end of the limit shaft and rotating seat
Be fixedly linked and the other end be hinged in brush holder, the limit shaft be located at space in and with rotating seat it is concentric set.
The side of the sliding block dorsad electromagnet is fixedly connected with stator, and the side of the rotating seat dorsad brush is provided with
Connection sheet is respectively fixedly connected with boss, the both sides end face of the boss, one end of shell fragment described in two is linked as with stator
The integral and other end is connected as a single entity with connection sheet respectively.
Sliding groove along its length is offered in the middle part of the brush holder, the electromagnet is located at one end of sliding groove,
The sliding block is slidably connected in sliding groove, and the section of the sliding groove and the section of sliding block are in the polygon being adapted.
One end of the brush holder offers and offers at least one on the through hole for housing rotating seat, the inwall of the through hole
The sealing ring being adapted to seal groove is socketed with outside seal groove, the rotating seat.
Controlling switch and control circuit are offered between the electromagnet and battery.
The brush is removably attachable on rotating seat.
The sliding block is permanent magnet.
During use of the present invention, when electromagnet is obtained it is electric when, sliding block will be attracted on electromagnet, now, due to shell fragment
Can not directly it be translated in the presence of limit assembly, therefore, the angle of itself and rotating seat will produce change（Angle when directly translating
Degree is constant, i.e., rotating seat is only translated and do not rotated）, so as to drive rotating seat to rotate to an angle（Concrete numerical value and the folder of two shell fragments
The displacement of angle and sliding block is relevant）；And when electromagnet dead electricity, shell fragment will pull sliding block to answer in the presence of selfer power
Position, and cause rotating seat to be inverted to initial position.So, when electric toothbrush unlatching, electromagnet frequency under the influence of control circuit
During numerous electric, dead electricity, rotating seat will constantly be forwarded and reversed, so that stable, efficient drive brush reciprocating rotation, enters
And efficient deep clean is carried out to the tooth of user.The present invention has that delicate structure, stability is good, tooth is clear on the whole
The advantage that clean effect is good and manufacturing cost is low, use cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of this case,
Fig. 2 is that Fig. 1 is top view,
Fig. 3 be Fig. 2 A-A to sectional view,
Fig. 4 is the internal structure schematic diagram of the first embodiment of this case,
Fig. 5 is Fig. 4 stereogram,
Fig. 6 is the structural representation of local brush holder in this case the first embodiment；
Fig. 7 is the structural representation of second of embodiment of this case,
Fig. 8 is that Fig. 7 is top view,
Fig. 9 is the structural representation of drive mechanism in second of embodiment of this case,
Figure 10 is the internal structure schematic diagram of second of embodiment of this case,
Figure 11 is Figure 10 stereogram；
1 is brush in figure, and 2 be brush holder, and 3 be drive mechanism, and 31 be electromagnet, and 32 be sliding block, and 320 be stator, and 33 be rotation
Seat, 330 be connection sheet, and 331 be boss, and 34 be limit assembly, and 341 be stopper slot, and 342 be limit shaft, and 35 be shell fragment, and 4 be electricity
Pond.
Embodiment
The present invention as shown in figs. 1-11, here, it is to be understood that, for ensure accompanying drawing clear signal, therefore, only show
Part brush holder outside drive mechanism, the brush holder of outside batteries is not showed that, including brush 1, brush holder 2, drive mechanism 3 and electricity
Pond 4, the brush 1 is connected to one end of brush holder 2, and the drive mechanism 3 is connected between brush 1 and battery 4 and for driving
Brush 1 rotates；
The drive mechanism 3 includes electromagnet 31, sliding block 32, rotating seat 33, limit assembly 34 and two pieces of shell fragments 35, the electromagnetism
Iron 31 is fixedly connected in brush holder 2 and is connected with battery 4, and the sliding block 32 is slidably connected in brush holder 2 and and electromagnet
Gap is left between 31, the rotating seat 33 is movably connected in one end of brush holder 2 and is connected with brush 1；
One end of shell fragment 35 described in two is fixedly connected with sliding block 32 that dorsad the side of electromagnet 31 and the other end are fixed respectively connects
It is connected on the both sides at the center of rotating seat 33；The limit assembly 34 connects the brush holder 2 and connection rotating seat 33 or shell fragment 35,
For preventing length direction translation of the shell fragment 35 along brush holder 2.
Angle between shell fragment 35 described in two is acute angle.
When electromagnet is obtained it is electric when, sliding block will be attracted on electromagnet, now, because shell fragment is in the presence of limit assembly
Can not directly it translate, therefore, the angle of itself and rotating seat will produce change（The angle is constant when directly translating, i.e., rotating seat is only
Translation does not rotate）, so as to drive rotating seat to rotate to an angle（Concrete numerical value and the angle and the displacement of sliding block of two shell fragments
It is relevant）；And when electromagnet dead electricity, shell fragment will pull sliding block to reset in the presence of selfer power, and make it that rotating seat is anti-
Go to initial position.So, when electric toothbrush is opened, electromagnet is in frequent electric, dead electricity under the influence of controlling circuit, rotation
Seat will be forwarded and reversed constantly, so that stable, efficient drive brush reciprocating rotation, and then the tooth of user be entered
The efficient deep clean of row.
Representative elaboration is carried out with two kinds of different embodiments to limit assembly below：
Embodiment one, as shown in figures 1 to 6：The limit assembly 34 is a pair of stopper slots 341, and the stopper slot 341 is opened in brush
It is socketed on the inwall of handle 2 and respectively the middle part of shell fragment 35 described in two.When electromagnet is obtained it is electric when, due to the middle part quilt of two shell fragments
Stopper slot is spacing, therefore, when sliding block is translated towards electromagnet, and the angle between two shell fragments will be tapered into, the connection of two shell fragments
The spacing of one end on rotating seat will also be tapered into therewith, so as to drive rotating seat side slightly to be translated, side carries out one
Determine the rotation of angle；And in electromagnet dead electricity, sliding block will slide under the effect of the selfer power of shell fragment away from electromagnet, rotation
Swivel base also resets reversion.So, when electric toothbrush is opened, electromagnet in frequent electric, dead electricity under the influence of controlling circuit,
Rotating seat will be forwarded and reversed constantly.
Embodiment two, as illustrated in figures 7-11：Space is left between shell fragment 35 described in two, the limit assembly 34 is limit shaft
342, one end of the limit shaft 342 is fixedly linked with rotating seat 33 and the other end is hinged in brush holder 2, the limit shaft 342
In space and with rotating seat 33 it is concentric set.So that rotating seat will be only capable of it is synchronous with limit shaft, relative to brush holder
Rotate.So, when electromagnet is obtained it is electric when, sliding block is translated towards electromagnet, and shell fragment is stretched, its angle with rotating seat
And will be become larger with the angle of sliding block, so as to drive rotating seat to turn over certain angle；And in electromagnet dead electricity, sliding block
By, away from electromagnet sliding, rotating seat also resets reversion under the effect of the selfer power of shell fragment.So that electric toothbrush is opened,
Electromagnet is in frequent electric, dead electricity under the influence of controlling circuit, and rotating seat will be forwarded and reversed constantly.
The side of the sliding block 32 dorsad electromagnet 31 is fixedly connected with stator 320, the rotating seat 33 dorsad brush 1
Side be provided with boss 331, be respectively fixedly connected with connection sheet 330 on the both sides end face of the boss 331, shell fragment 35 described in two
One end be connected as a single entity with stator 320 and the other end is connected as a single entity with connection sheet 330 respectively.So that shell fragment is with consolidating
90-180 ° of angle is respectively provided between stator and connection sheet, so so that shell fragment is with the same of higher connective stability
When, by its knuckle between stator and connection sheet, make it have preferable elastic deformability and stronger shape
Become reset capability, so as to while the using effect of shell fragment is greatly improved, reduce manufacture difficulty and the installation of shell fragment
Difficulty.
The middle part of the brush holder 2 offers sliding groove along its length, and the electromagnet 31 is located at the one of sliding groove
End, the sliding block 32 is slidably connected in sliding groove, and the section of the sliding groove and the section of sliding block are in the polygon being adapted.
So that sliding block and only can do straight reciprocating motion along the length direction of brush holder.
One end of the brush holder 2 is offered to be offered at least on the through hole for housing rotating seat, the inwall of the through hole
The sealing ring being adapted to seal groove is socketed with outside one seal groove, the rotating seat 33.So as to shell fragment is risen good effective sealing,
Protective action, effectively to extend the service life that drive mechanism is overall.
Controlling switch and control circuit are offered between the electromagnet 31 and battery 4.So that after electric toothbrush unlatching,
Control electromagnet electric must be switched fast between dead electricity.
The brush is removably attachable on rotating seat.So that people easily can be cleaned or more to brush
Change.
The sliding block is permanent magnet.So, opposite polarity can be then produced when the sense of current is opposite in electromagnet, so that
Full-amount restoring force is provided when rotating seat is inverted, that is, effectively improves stability and reliability overall when using.
Claims (8)
1. a kind of electric toothbrush, including brush, brush holder, drive mechanism and battery, the brush are connected to one end of brush holder, described
Drive mechanism is connected between brush and battery and for driving brush rotation；Characterized in that,
The drive mechanism includes electromagnet, sliding block, rotating seat, limit assembly and two pieces of shell fragments, and the electromagnet is fixedly connected
It is connected in brush holder and with battery, the sliding block is slidably connected in brush holder and gap is left between electromagnet, described
Rotating seat is movably connected in one end of brush holder and is connected with brush；
One end of shell fragment described in two is fixedly connected with sliding block that dorsad the side of electromagnet and the other end are respectively fixedly connected with rotation
The both sides at the center of swivel base；The limit assembly connects the brush holder and connection rotating seat or shell fragment, for preventing the shell fragment
Translated along the length direction of brush holder.
2. a kind of electric toothbrush according to claim 1, it is characterised in that the angle between shell fragment described in two is acute angle.
3. a kind of electric toothbrush according to claim 2, it is characterised in that the limit assembly is a pair of stopper slots, institute
State the middle part that stopper slot is opened on the inwall of brush holder and is socketed in shell fragment described in two respectively.
4. a kind of electric toothbrush according to claim 2, it is characterised in that space is left between shell fragment described in two, described
Limit assembly is limit shaft, and one end of the limit shaft is fixedly linked with rotating seat and the other end is hinged in brush holder, the limit
Position axle position in space and with rotating seat it is concentric set.
5. a kind of electric toothbrush according to claim 1, it is characterised in that the side of the sliding block dorsad electromagnet is fixed
It is connected with stator, the side of the rotating seat dorsad brush is provided with boss, the both sides end face of the boss fixed respectively connect
Connection sheet is connected to, one end of shell fragment described in two is connected as a single entity with stator and the other end is connected as a single entity with connection sheet respectively.
6. a kind of electric toothbrush according to claim 1, it is characterised in that offer control between the electromagnet and battery
System switch and control circuit.
7. a kind of electric toothbrush according to claim 1, it is characterised in that the brush is removably attachable to rotating seat
On.
8. a kind of electric toothbrush according to claim 1, it is characterised in that the sliding block is permanent magnet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301592.4A CN107126285B (en) | 2017-05-02 | 2017-05-02 | Electric toothbrush |
| PCT/CN2017/118886 WO2018201741A1 (en) | 2017-05-02 | 2017-12-27 | Electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301592.4A CN107126285B (en) | 2017-05-02 | 2017-05-02 | Electric toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107126285A true CN107126285A (en) | 2017-09-05 |
| CN107126285B CN107126285B (en) | 2023-10-20 |
Family
ID=59716348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301592.4A Active CN107126285B (en) | 2017-05-02 | 2017-05-02 | Electric toothbrush |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107126285B (en) |
| WO (1) | WO2018201741A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108095845A (en) * | 2018-01-26 | 2018-06-01 | 冯纲 | A kind of elastic construction inside electric toothbrush |
| WO2018201741A1 (en) * | 2017-05-02 | 2018-11-08 | 江苏科那智能设备有限公司 | Electric toothbrush |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020092104A1 (en) * | 2001-01-12 | 2002-07-18 | Homedics, Inc. | Acoustic toothbrush |
| CN202722965U (en) * | 2012-08-02 | 2013-02-13 | 廖金波 | Self-rotation type toothbrush |
| CN204092254U (en) * | 2013-11-20 | 2015-01-14 | 王正富 | A kind of vertical automatic tooth-brush |
| CN207785299U (en) * | 2017-05-02 | 2018-08-31 | 江苏科那智能设备有限公司 | Electric toothbrush |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004298246A (en) * | 2003-03-28 | 2004-10-28 | Sanyo Electric Co Ltd | Electric toothbrush |
| US7646117B2 (en) * | 2006-12-22 | 2010-01-12 | Matsushita Electric Works, Ltd. | Actuator and electric toothbrush using the same |
| PL2550937T3 (en) * | 2011-07-25 | 2014-07-31 | Braun Gmbh | Magnetic connection between a toothbrush handle and a brush head |
| CN104968297B (en) * | 2013-12-04 | 2017-10-24 | 拉尼尔有限责任公司 | Spring mechanism for electric device |
| CN107126285B (en) * | 2017-05-02 | 2023-10-20 | 江苏白王口腔护理用品有限公司 | Electric toothbrush |
| CN106901857B (en) * | 2017-05-02 | 2019-02-05 | 希尔顿（江苏）健康科技有限公司 | A kind of driving mechanism of pulling formula electric toothbrush |
| CN106963509B (en) * | 2017-05-02 | 2020-01-17 | 黄延军 | Driving mechanism of torsional electric toothbrush |
-
2017
- 2017-05-02 CN CN201710301592.4A patent/CN107126285B/en active Active
- 2017-12-27 WO PCT/CN2017/118886 patent/WO2018201741A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020092104A1 (en) * | 2001-01-12 | 2002-07-18 | Homedics, Inc. | Acoustic toothbrush |
| CN202722965U (en) * | 2012-08-02 | 2013-02-13 | 廖金波 | Self-rotation type toothbrush |
| CN204092254U (en) * | 2013-11-20 | 2015-01-14 | 王正富 | A kind of vertical automatic tooth-brush |
| CN207785299U (en) * | 2017-05-02 | 2018-08-31 | 江苏科那智能设备有限公司 | Electric toothbrush |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201741A1 (en) * | 2017-05-02 | 2018-11-08 | 江苏科那智能设备有限公司 | Electric toothbrush |
| CN108095845A (en) * | 2018-01-26 | 2018-06-01 | 冯纲 | A kind of elastic construction inside electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107126285B (en) | 2023-10-20 |
| WO2018201741A1 (en) | 2018-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207785299U (en) | Electric toothbrush | |
| CN107394982B (en) | Miniature DC motor | |
| CN107126285A (en) | A kind of electric toothbrush | |
| CN106901857A (en) | A kind of drive mechanism of pulling formula electric toothbrush | |
| CN113876271A (en) | Integrated roller brush for cleaning equipment | |
| CN108063534B (en) | Device capable of reciprocating swing | |
| CN111865027A (en) | High-frequency high-rotation-speed swing motor and implementation method thereof | |
| CN212969400U (en) | Improved structure type sound wave motor | |
| CN213641343U (en) | Toothbrush head rotary rod reciprocating swing electric toothbrush | |
| CN106963509A (en) | A kind of drive mechanism of torsional mode electric toothbrush | |
| CN219351500U (en) | Large-swing vibration motor for electric toothbrush | |
| CN207785301U (en) | The driving mechanism of torsional mode electric toothbrush | |
| CN207785300U (en) | The driving mechanism of pulling formula electric toothbrush | |
| CN107233029B (en) | Electric face washing device | |
| JP2008220066A (en) | Actuator | |
| CN212969399U (en) | Improved structure type sound wave motor | |
| CN205453336U (en) | Motor and rotor assembly for same | |
| CN205359333U (en) | Electronic acoustic vibration's facial cleaning brush | |
| JP2008212848A (en) | Actuator | |
| CN209004290U (en) | A kind of electric toothbrush rotor that high stability can quickly assemble | |
| WO2020011260A1 (en) | Magnetic attraction type electric razor | |
| CN211151632U (en) | Permanent magnet direct current brushless motor stator structure for pulsator washing machine | |
| WO2021031254A1 (en) | Variable-output cam lever power device | |
| CN107565781B (en) | washing machine | |
| CN206180759U (en) | High-frequency vibration motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181228 Address after: 225000 18 storeys, Block A, Zhigu Building, 186 Yangtze River Middle Road, Hangjiang District, Yangzhou City, Jiangsu Province Applicant after: HILTON (JIANGSU) HEALTH TECHNOLOGY Co.,Ltd. Address before: 225000 Room 102, 58 Mingxing Garden Building, 59 Shunda Road, Yangzhou Development Zone, Jiangsu Province Applicant before: Yang Mingli Effective date of registration: 20181228 Address after: 225000 Room 102, 58 Mingxing Garden Building, 59 Shunda Road, Yangzhou Development Zone, Jiangsu Province Applicant after: Yang Mingli Address before: 225000 No. 68 Jinhuai Road, Hangjiang District, Yangzhou City, Jiangsu Province Applicant before: JIANGSU KOONA INTELLIGENT EQUIPMENT Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200819 Address after: 225000 Chizhi Valley, 186 Yangzi Middle Road, Yangzhou economic and Technological Development Zone, Yangzhou, Jiangsu Applicant after: JIANGSU KOONA INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 225000 18 storeys, Block A, Zhigu Building, 186 Yangtze River Middle Road, Hangjiang District, Yangzhou City, Jiangsu Province Applicant before: HILTON (JIANGSU) HEALTH TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210720 Address after: No.168, ecological fiber road, Tai'an Town, Yangzhou City, Jiangsu Province Applicant after: Jiangsu Baiwang oral care products Co.,Ltd. Address before: Zhigu building, No. 186, Yangzi River middle road, Yangzhou Economic and Technological Development Zone Applicant before: JIANGSU KOONA INTELLIGENT EQUIPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |