WO2012147308A1 - シートヒータ - Google Patents
シートヒータ Download PDFInfo
- Publication number
- WO2012147308A1 WO2012147308A1 PCT/JP2012/002678 JP2012002678W WO2012147308A1 WO 2012147308 A1 WO2012147308 A1 WO 2012147308A1 JP 2012002678 W JP2012002678 W JP 2012002678W WO 2012147308 A1 WO2012147308 A1 WO 2012147308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heater
- seat
- heating
- temperature
- warming
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
- H05B1/0238—For seats
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
- A47C7/748—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
- B60N2/5685—Resistance
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/029—Heaters specially adapted for seat warmers
Definitions
- the present invention relates to a seat heater for heating a seat of an automobile or the like.
- a seat heater in which electric heater wires are meanderingly disposed on the entire surface of the base material at a predetermined pitch between the skin and the main pad in each of a seat portion and a back portion of an automobile seat is provided.
- the seat heater when the electric heater wire is energized, the seat heater generates heat. Thereby, even in the cold season, the occupant seated in the seat can be seated warmly and comfortably.
- FIG. 4 is a circuit diagram of a conventional seat heater.
- the seat heater shown in FIG. 4 includes a heater 401a for the seat portion, a heater 401b for the back portion, an overtemperature preventing portion 402, and a heating portion 403.
- the over-temperature prevention unit 402 is heated by the heating unit 403 and stops energization of the heaters 401a and 401b when reaching a predetermined temperature.
- energization of the heaters 401a and 401b is usually controlled by temperature control means (not shown) such as a thermostat or a controller.
- temperature control means such as a thermostat or a controller.
- the energization of the heaters 401a and 401b cannot be controlled due to failure of the temperature control means, the temperature of the seat portion and the back portion rises to a predetermined temperature or higher.
- the overheat prevention unit 402 stops energization of the heaters 401a and 401b, thereby ensuring safety. ing.
- a return-type temperature switch is used as the overheat prevention unit 402. This is because even when the temperature inside the vehicle interior becomes high and the overheat prevention unit 402 cuts off the power supply to the heaters 401a and 401b, the heater 401a This is because the energization of 401b is restored (for example, Patent Document 1).
- the overheat prevention unit 402 is a return type. Therefore, even if the temperature abnormality is detected and the energization to the heaters 401a and 401b is stopped, the temperature rise prevention unit 402 resumes the energization to the heaters 401a and 401b when the temperature is lowered. Let Therefore, when the output of the conventional seat heater is increased, an increase in temperature is caused and there is a problem that comfort and safety for a seated person are lowered.
- An object of the present invention is to provide a seat heater that can ensure comfort and safety even when the output of the seat heater is increased.
- a seat heater includes a first warming heater for warming a seat portion of a seat, a second warming heater for warming a back portion of the seat, and excessive temperatures of the first warming and the second warming heater.
- An over-temperature prevention unit for preventing an increase and a heating unit for heating the over-temperature prevention unit are provided, and the over-temperature prevention unit is configured by a non-returnable temperature switch.
- Embodiment 1 of the present invention It is a circuit diagram of the seat heater in Embodiment 1 of the present invention. It is a circuit diagram of the seat heater in Embodiment 2 of the present invention. It is a circuit diagram of the seat heater in Embodiment 3 of the present invention. It is a circuit diagram of the conventional seat heater.
- FIG. 1 is a circuit diagram of a seat heater according to Embodiment 1 of the present invention.
- the seat heater shown in FIG. 1 includes a warming heater 1a (an example of a first warming heater), a warming heater 1b (an example of a second warming heater), an overtemperature prevention unit 2, and a heating unit 3. ing.
- the warming heater 1a warms the seat.
- the warming heater 1b warms the back.
- the heating heaters 1a and 1b are formed in a planar shape by meandering electric heater wires at a predetermined pitch on a base material such as nonwoven fabric or urethane.
- the temperature of the warming heaters 1a and 1b is controlled by temperature control means such as a thermostat or a controller.
- temperature control means such as a thermostat or a controller.
- the controller controls the heating heaters 1a and 1b using temperature detection signals of the heating heaters 1a and 1b output from a temperature detection element such as a thermistor, for example.
- the temperature control means stops energization of the heating heaters 1a and 1b when the temperature of the heating heaters 1a and 1b reaches a predetermined temperature, and then the temperature of the heating heaters 1a and 1b decreases to the predetermined temperature, or Then, after a predetermined time elapses, an ON / OFF operation of restarting energization of the heating heaters 1a and 1b is performed.
- temperature control is performed so that the temperature of the seat surface becomes a comfortable temperature.
- the temperature control means breaks down and normal temperature control becomes impossible, it is conceivable that power is always supplied. In this case, the surface temperature of the seat rises, which may cause discomfort to the seated person, or may lead to unsafeness such as smoke or fire from the seat. Therefore, in the seat heater according to the present embodiment, an overheat prevention unit 2 and a heating unit 3 for heating the overtemperature prevention unit 2 are provided separately from the temperature control means. Thereby, even if the temperature control means breaks down and the heater is always energized, the overheat prevention unit 2 is heated by the heating unit 3. When the temperature of the warming heaters 1a and 1b reaches a predetermined temperature, the energization of the warming heaters 1a and 1b is stopped.
- a return-type temperature switch has been adopted as the overheat prevention section 2. Therefore, even if the temperature inside the passenger compartment increases and the energization of the warming heaters 1a and 1b is stopped by the overheat prevention unit 2 (OFF operation), if the temperature inside the vehicle compartment decreases, the overtemperature prevention unit 2 The energization to the heating heaters 1a and 1b was resumed (ON operation).
- the heat generation density of the warming heaters 1a and 1b is suppressed to a predetermined density or less in consideration of the case where the overheat prevention unit 2 fails. Thereby, it was comprised so that the temperature of the heating heaters 1a and 1b might be saturated at the temperature which does not lead to unsafeness.
- a non-returning type temperature switch is employed as the overtemperature prevention unit 2.
- the overheating prevention unit 2 stops energizing the heating heaters 1a, 1b. Is done.
- the temperature rise of the seat heater can be surely prevented, and safety can be improved.
- the resistance value of the warming heaters 1a and 1b As a whole.
- the resistance value needs to be lowered.
- the cost is increased and the heater wire is likely to be raised on the seat surface, leading to a reduction in the commercial value.
- the heating heaters 1a and 1b are connected in parallel by a parallel circuit.
- the warming heater 1a is provided in one path L1 of the parallel circuit
- the warming heater 1b is provided in the other path L2 of the parallel circuit.
- the overheat prevention unit 2 is connected to the parallel circuit via a branch point P1 between the path L1 and the path L2. That is, the overheat prevention unit 2 is disposed before the parallel circuit branches into the path L1 and the path L2.
- the overheat prevention part 2 can stop energization to all the heating heaters 1a and 1b, and can provide a seat heater with high commercial value and high safety.
- one end of the overheat prevention part 2 is connected to the branch point P1, and the power supply part 4 is connected to the other end.
- one end of the path L1 is grounded and the other end is a branch point P1.
- a heating unit 3 is provided in the path L1.
- the heating part 3 was provided in the path
- one end of the path L2 is grounded, and the other end is a branch point P1.
- a return type overtemperature prevention unit for example, an operating temperature lower than the overtemperature prevention unit 2 (for example, A thermostat) may be provided apart from the overheat prevention unit 2 configured by the non-reset type temperature switch.
- the return-type overheat prevention unit operates to cut off the energization of the warming heaters 1a and 1b to prevent abnormal temperature rise of the warming heaters 1a and 1b.
- the non-reset-type overtemperature prevention unit 2 operates and stops energization of the heating heaters 1a and 1b. Thereby, electricity supply to the heating heaters 1a and 1b is surely stopped, and the safety of the seat heater can be further improved.
- non-return type temperature switch that constitutes the overheat prevention unit 2
- a temperature fuse for example, a thermostat that returns at an extremely low temperature, a thermostat that allows a person to manually return by a button operation, etc. are adopted. can do.
- the operating temperature of the overheat prevention unit 2 may be determined to a temperature that does not lead to unsafeness in consideration of the melting temperature, ignition temperature, and the like of members around the seat heater.
- FIG. 2 is a circuit diagram of a seat heater according to the second embodiment of the present invention.
- the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the heating unit 3 includes a heater 3a (an example of a first heater) that is electrically connected to the heating heater 1a, and a heater 3b that is electrically connected to the heating heater 1b. (An example of a second heater). That is, the heater 3a is provided in the path L1, and the heater 3b is provided in the path L2.
- the heater in the path L1 heats the overheat prevention unit 2.
- the overheat prevention unit 2 may not be able to stop the energization of the heating heaters 1a and 1b.
- heaters 3a and 3b are provided. Thereby, even when one of the heating heaters in the path L1 or the path L2 is disconnected, the overheat prevention unit 2 is heated by the heater provided in the remaining path, and the overtemperature prevention unit 2 is activated. It becomes possible. As a result, safety can be ensured even if two component failures occur (temperature control means failure + heating heater disconnection).
- the seat portion is subject to a load stress of the seated person, and there is a high possibility that the heating heater 1a and the heater 3a are disconnected due to the stress. Therefore, in the present embodiment, the amount of heat generated by the heater 3b is made larger than that of the heater 3a. Therefore, even if the heater 3a is disconnected, the overheat prevention unit 2 can be reliably operated by heating the heater 3b having a large calorific value, and a highly safe seat heater can be provided.
- FIG. 3 is a circuit diagram of a seat heater according to Embodiment 3 of the present invention.
- the same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
- the seat heater according to the third embodiment is the same as the seat heater according to the second embodiment, wherein the overheat prevention unit 2 is composed of two overheat prevention units 2a and 2b, and the overheat prevention unit 2a is connected to the path L1. And an overtemperature prevention unit 2b is provided in the path L2.
- the overheat prevention units 2a and 2b By disposing the overheat prevention units 2a and 2b in the paths L1 and L2, the current flowing through the individual overheat prevention units 2a and 2b is reduced. Thereby, the overheat prevention part 2a, 2b can be reduced in size. For this reason, the arrangement in the seat becomes easy, the protrusion to the seat surface and the like can be suppressed, and the usability is improved.
- the overheat prevention portions 2, 2a, 2b may be mechanically fixed inside the seat by hot melt, metal fittings, or the like. As a result, it is possible to reduce the influence of the positional deviation or disengagement of the overheat prevention units 2, 2a, 2b due to load stress or the like, and it is possible to detect a stable abnormal state. As a result, it is possible to provide a seat heater that can reliably prevent an abnormal temperature rise of the heating heaters 1a and 1b.
- the seat heaters shown in the first to third embodiments may be employed in a seat of a hybrid vehicle or an electric vehicle, or may be employed in a seat of a vehicle using an engine as a power source. You may employ
- the seat heater according to the present embodiment includes a first warming heater for warming the seat portion of the seat, a second warming heater for warming the back portion of the seat, and an excessive temperature rise of the first warming and the second warming heater. And a heating unit that heats the over-temperature prevention unit, and the over-temperature prevention unit includes a non-returnable temperature switch.
- a non-returning type temperature switch is used as an overheat prevention part. For this reason, the non-return type overheat prevention unit operates before reaching the unsafe event, and the energization of the heater can be reliably stopped. As a result, a safer seat heater can be provided while achieving higher output.
- the first warming heater and the second warming heater may be connected in parallel by a parallel circuit, and the overheat prevention unit may be connected to the parallel circuit via a branch point of the parallel circuit. Good.
- the heating section may include a first heater electrically connected to the first warming heater, and a second heater electrically connected to the second warming heater. Good.
- the overheat prevention unit is reliably heated by the heater connected to the heating heater that is not disconnected, Even when the heating heater is disconnected, safety can be ensured.
- the amount of heat generated by the second heater may be greater than the amount of heat generated by the first heater.
- the heat generation amount of the second heater provided at the back portion is made larger than the heat generation amount of the first heater provided at the seat portion.
- the first warming heater is provided in one path of the parallel circuit
- the second warming heater is provided in the other path of the parallel circuit
- the overheat prevention unit is A first over-temperature prevention unit provided in the path and a second over-temperature prevention unit provided in the other path may be included.
- the overheat prevention unit may be mechanically fixed to the seat.
- a high-power seat heater can be provided for heating a car seat, so that it can be applied to heating of a vehicle seat other than a car or personal heating for a house. It is.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Resistance Heating (AREA)
- Air-Conditioning For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
本発明の実施の形態1におけるシートヒータを図1を参照して説明する。図1は、本発明の実施の形態1におけるシートヒータの回路図である。
図2は、本発明の実施の形態2によるシートヒータの回路図である。なお、本実施の形態において、実施の形態1と同じものは同一の符号を付し、説明を省略する。
図3は、本発明の実施の形態3によるシートヒータの回路図である。なお、本実施の形態において、実施の形態1、2と同じものは同一の符号を付し、説明を省略する。
本実施の形態によるシートヒータは、座席の座部を採暖する第1採暖ヒータと、前記座席の背部を採暖する第2採暖ヒータと、前記第1採暖及び前記第2採暖ヒータの過度の温度上昇を防止する温度過昇防止部と、前記温度過昇防止部を加熱する加熱部とを備え、前記温度過昇防止部は非復帰型の温度スイッチにより構成されている。
Claims (6)
- 座席の座部を採暖する第1採暖ヒータと、
前記座席の背部を採暖する第2採暖ヒータと、
前記第1採暖及び前記第2採暖ヒータの過度の温度上昇を防止する温度過昇防止部と、
前記温度過昇防止部を加熱する加熱部とを備え、
前記温度過昇防止部は非復帰型の温度スイッチにより構成されていることを特徴とするシートヒータ。 - 前記第1採暖ヒータ及び前記第2採暖ヒータは、並列回路により並列接続され、
前記温度過昇防止部は、前記並列回路の分岐点を介して前記並列回路に接続されている請求項1記載のシートヒータ。 - 前記加熱部は、
前記第1採暖ヒータと電気的に接続された第1加熱ヒータと、
前記第2採暖ヒータと電気的に接続された第2加熱ヒータとを含むことを特徴とする請求項2記載のシートヒータ。 - 前記第2加熱ヒータの発熱量は、前記第1加熱ヒータの発熱量よりも大きいことを特徴とする請求項3記載のシートヒータ。
- 前記第1採暖ヒータは、並列回路の一方の経路に設けられ、
前記第2採暖ヒータは、前記並列回路の他方の経路に設けられ、
前記温度過昇防止部は、
前記一方の経路に設けられた第1温度過昇防止部と、
前記他方の経路に設けられた第2温度過昇防止部とを含むことを特徴とする請求項1記載のシートヒータ。 - 温度過昇防止部は、前記座席に対して機械的に固定されていることを特徴とする請求項1~5のいずれかに記載のシートヒータ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/984,611 US9497801B2 (en) | 2011-04-27 | 2012-04-18 | Seat heater |
CN201280009043.5A CN103380026B (zh) | 2011-04-27 | 2012-04-18 | 座椅加热器 |
JP2013511913A JP5909657B2 (ja) | 2011-04-27 | 2012-04-18 | シートヒータ |
EP12777821.5A EP2703212B1 (en) | 2011-04-27 | 2012-04-18 | Seat heater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011099177 | 2011-04-27 | ||
JP2011-099177 | 2011-04-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012147308A1 true WO2012147308A1 (ja) | 2012-11-01 |
Family
ID=47071841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/002678 WO2012147308A1 (ja) | 2011-04-27 | 2012-04-18 | シートヒータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US9497801B2 (ja) |
EP (1) | EP2703212B1 (ja) |
JP (1) | JP5909657B2 (ja) |
CN (1) | CN103380026B (ja) |
WO (1) | WO2012147308A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015112917A (ja) * | 2013-12-09 | 2015-06-22 | カルソニックカンセイ株式会社 | 車両空調用安全装置、及びその制御方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115402168B (zh) * | 2017-11-27 | 2024-07-09 | 提爱思科技股份有限公司 | 交通工具用座椅 |
CN108859890A (zh) * | 2018-07-05 | 2018-11-23 | 浙江金池科技有限公司 | 座椅加热片及汽车座椅 |
CN111619415B (zh) * | 2019-02-27 | 2021-10-22 | 广州汽车集团股份有限公司 | 一种汽车座椅加热温度传感器故障检测方法及装置 |
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JPH06301427A (ja) * | 1993-04-15 | 1994-10-28 | Mitsubishi Cable Ind Ltd | シートヒータの制御装置 |
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JP2003109721A (ja) | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | シートヒータ |
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EP1929901B1 (en) * | 2005-08-11 | 2012-10-10 | Kurabe Industrial Co., Ltd | Heating device for seat |
JP5359004B2 (ja) | 2007-04-19 | 2013-12-04 | パナソニック株式会社 | 暖房装置付き座席 |
KR101114584B1 (ko) * | 2009-09-17 | 2012-04-13 | 갑을오토텍(주) | 자동차 시트 냉난방 장치 |
CN201633590U (zh) * | 2010-04-27 | 2010-11-17 | 北京地铁车辆装备有限公司 | 安装在座椅下的可拆卸式罩板式电热器 |
US8637795B2 (en) * | 2011-02-04 | 2014-01-28 | Honeywell International, Inc. | Self-configuring flexible heater |
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2012
- 2012-04-18 US US13/984,611 patent/US9497801B2/en active Active
- 2012-04-18 EP EP12777821.5A patent/EP2703212B1/en active Active
- 2012-04-18 JP JP2013511913A patent/JP5909657B2/ja active Active
- 2012-04-18 WO PCT/JP2012/002678 patent/WO2012147308A1/ja active Application Filing
- 2012-04-18 CN CN201280009043.5A patent/CN103380026B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03226984A (ja) * | 1990-02-01 | 1991-10-07 | Matsushita Electric Ind Co Ltd | 車両用ヒータユニット |
JPH06301427A (ja) * | 1993-04-15 | 1994-10-28 | Mitsubishi Cable Ind Ltd | シートヒータの制御装置 |
JP2000342382A (ja) * | 1999-06-07 | 2000-12-12 | Matsushita Electric Ind Co Ltd | 暖房装置付座席 |
JP2002270338A (ja) * | 2001-03-14 | 2002-09-20 | Matsushita Electric Ind Co Ltd | 着座センサー付き面状発熱体 |
JP2003109721A (ja) | 2001-09-28 | 2003-04-11 | Matsushita Electric Ind Co Ltd | シートヒータ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015112917A (ja) * | 2013-12-09 | 2015-06-22 | カルソニックカンセイ株式会社 | 車両空調用安全装置、及びその制御方法 |
US10518608B2 (en) | 2013-12-09 | 2019-12-31 | Calsonic Kansei Corporation | Vehicle air-conditioner safety device, and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP2703212B1 (en) | 2017-05-31 |
US9497801B2 (en) | 2016-11-15 |
CN103380026B (zh) | 2016-03-23 |
JPWO2012147308A1 (ja) | 2014-07-28 |
CN103380026A (zh) | 2013-10-30 |
EP2703212A4 (en) | 2014-10-01 |
JP5909657B2 (ja) | 2016-04-27 |
EP2703212A1 (en) | 2014-03-05 |
US20130319991A1 (en) | 2013-12-05 |
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