Patents by Inventor Hirotaka Watanabe
Hirotaka Watanabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10062938Abstract: An assembled battery is formed by combining battery modules. Each battery module includes at least one battery cell and a rectangular box-shaped case that accommodates the at least one battery cell. The battery modules include a first battery module and a second battery module located adjacent to each other. The case of each of the first battery module and the second battery module includes an opposing side surface that is opposed to one of the first battery module and the second battery module. Each opposing side surface includes projections, which are laid out in rows, and ribs, which extend parallel to the layout direction of the projections. The ribs are smaller in height than the first projections. The ribs include connection ribs that connect the projections located in a predetermined range in the layout direction of the projections.Type: GrantFiled: September 20, 2016Date of Patent: August 28, 2018Assignees: PRIMEARTH EV ENERGY CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuaki Hada, Hiroki Tadauchi, Yasuhiro Otsuka, Hirotaka Watanabe
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Publication number: 20170294554Abstract: A nitride semiconductor light-emitting element includes at least an n-type nitride semiconductor layer, a light-emitting layer, and a p-type nitride semiconductor layer. A multilayer body is provided between the n-type nitride semiconductor layer and the light-emitting layer, having at least one stack of first and second semiconductor layers. The second semiconductor layer has a greater band-gap energy than the first semiconductor layer. The first and second semiconductor layers each have a thickness of more than 10 nm and 30 nm or less. In applications in which luminous efficiency at room temperature is a high priority, the first semiconductor layer has a thickness of more than 10 nm and 30 nm or less, the second semiconductor layer has a thickness of more than 10 nm and 40 nm or less, and the light-emitting layer has V-shaped recesses in cross-sectional view.Type: ApplicationFiled: August 31, 2015Publication date: October 12, 2017Applicant: Sharp Kabushiki KaishaInventors: Yoshihiko TANI, Tetsuya HANAMOTO, Masanori WATANABE, Akihiro KURISU, Katsuji IGUCHI, Hiroyuki KASHIHARA, Tomoya INOUE, Toshiaki ASAI, Hirotaka WATANABE
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Publication number: 20170092998Abstract: An assembled battery is formed by combining battery modules. Each battery module includes at least one battery cell and a rectangular box-shaped case that accommodates the at least one battery cell. The battery modules include a first battery module and a second battery module located adjacent to each other. The case of each of the first battery module and the second battery module includes an opposing side surface that is opposed to one of the first battery module and the second battery module. Each opposing side surface includes projections, which are laid out in rows, and ribs, which extend parallel to the layout direction of the projections. The ribs are smaller in height than the first projections. The ribs include connection ribs that connect the projections located in a predetermined range in the layout direction of the projections.Type: ApplicationFiled: September 20, 2016Publication date: March 30, 2017Applicants: PRIMEARTH EV ENERGY CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuaki HADA, Hiroki TADAUCHI, Yasuhiro OTSUKA, Hirotaka WATANABE
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Publication number: 20170089251Abstract: A cooling control device includes: a cooling liquid pump whose rotational speed is set in accordance with a rotational speed of an engine; a cooling flow path and a heat exchanger which cool cooling liquid discharged from the engine; a flow rate control valve which is provided in the cooling flow path, changes an opening degree by driving a motor, and adjusts a flow rate of the cooling liquid; and a control portion which feedback-controls the opening degree of the flow rate control valve based on a difference between a temperature of the cooling liquid and a target temperature of the cooling liquid, and corrects a gain of the feedback control in accordance with the rotational speed of the engine.Type: ApplicationFiled: September 30, 2016Publication date: March 30, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuyoshi SHIMATANI, Masahiro YOSHIDA, Hirotaka WATANABE, Tatsuya MASUHISA
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Patent number: 9566853Abstract: A vehicle includes a motor serving as a driving source for running the vehicle, and a high-power assembled battery and a high-capacity assembled battery each capable of supplying an electric power to the motor and placed in a luggage space. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery. The high-capacity assembled battery has an energy capacity relatively larger than that of the high-power assembled battery and has a higher dependence of battery characteristic on temperature than that of the high-power assembled battery. The high-capacity assembled battery is placed over the high-power assembled battery in the vehicle.Type: GrantFiled: August 30, 2011Date of Patent: February 14, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tsuyoshi Hayashi, Kenji Kimura, Takurou Nakayama, Nobuyoshi Fujiwara, Akihiro Sato, Hirotaka Watanabe
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Publication number: 20170037771Abstract: A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction.Type: ApplicationFiled: July 19, 2016Publication date: February 9, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Noboru TAKAGI, Yasunobu TOYODA, Hirotaka WATANABE, Masazumi YOSHIDA, Ryusuke SASAKI
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Publication number: 20170033339Abstract: An electricity storage system includes a plurality of electricity storage elements, a partition member, a pair of end plates, and a plurality of coupling members. The case includes a flat surface that has a first region opposed to a positive-electrode active material layer and a negative-electrode active material layer of a power generation element, and a second region other than the first region. The partition member is disposed between two electricity storage elements adjacent to each other in the predetermined direction. The pair of end plates is disposed in positions sandwiching the plurality of electricity storage elements in the predetermined direction such that the pair of end plates applies a constraint force to the plurality of electricity storage elements. The constraint force acting on the second region is larger than the constraint force acting on the first region.Type: ApplicationFiled: April 9, 2015Publication date: February 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotaka WATANABE, Junta KATAYAMA, Kenji KIMURA, Takaaki YOKOI
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Publication number: 20170012268Abstract: A connection unit of the present invention includes: a rail member extending in a direction where a plurality of storage elements is aligned; and a plurality of bus bar units each including an engagement portion movable along the rail member in the predetermined direction, and a bus bar fixed to electrode terminals of the storage elements adjacent to each other in the predetermined direction and connected to the engagement portion. The plurality of bus bar units engages with the rail member so as to be aligned in the predetermined direction, and the bus bar units adjacent to each other are provided so as to be movable independently along the predetermined direction. Entire assembly tolerance in the plurality of storage elements aligned in the predetermined direction can be absorbed (permitted) by adjusting distances between the independent bus bar units, thereby making it possible to easily assemble the plurality of bus bars.Type: ApplicationFiled: January 19, 2015Publication date: January 12, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hirotaka WATANABE
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Patent number: 9411115Abstract: An optical fiber ribbon according to the present invention includes a collective coating layer containing an ultraviolet curable resin containing amorphous PPG and an amorphous monomer, the collective coating layer formed around coated optical fibers. The collective coating layer has an equilibrium elastic modulus of 12 MPa to 20 MPa, both inclusive, and a yield point elongation of 5% to 9%, both inclusive, and the adhesion between the collective coating layer and the outermost layers of the coated optical fibers is 12 N/cm to 15 N/cm, both inclusive.Type: GrantFiled: May 5, 2015Date of Patent: August 9, 2016Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Hiroki Tanaka, Minoru Saito, Hirotaka Watanabe, Hiroaki Ito, Yukio Ishii, Yoshihiro Arashitani
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Publication number: 20160204487Abstract: In a temperature adjusting structure for an electric power storage device as well as in a temperature adjusting method for an electric power storage device, a temperature adjusting air that exchanges heat with a case in which an electric power generation element is housed is guided in a longitudinal direction of a circulation path. Then, a vortex flow that swirls with the longitudinal direction being a rotational axis is generated in the air that flows through the circulation path, and the vortex flow is brought into contact with a lateral surface of the case.Type: ApplicationFiled: September 8, 2014Publication date: July 14, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi MORIOKA, Junta KATAYAMA, Hirotaka WATANABE
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Patent number: 9278612Abstract: A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using output from the motor with the engine stopped, the high-capacity assembled battery supplies more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a vehicle-inside space accommodating a passenger or baggage, and the high-capacity assembled battery is placed in a vehicle-outside space located on an outer face of a vehicle body.Type: GrantFiled: August 30, 2011Date of Patent: March 8, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tsuyoshi Hayashi, Kenji Kimura, Takurou Nakayama, Hirotaka Watanabe, Nobuyoshi Fujiwara, Akihiro Sato
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Patent number: 9214655Abstract: A power storage device includes a plurality of power storage elements (10) lined up along a predetermined arrangement direction; a dividing member (40) that is made of insulating material and arranged between two adjacent power storage elements; a pair of end plates (31) that sandwich the plurality of power storage elements, and apply restraining force thereto, in the arrangement direction; and a metal connecting member (32) that extends in the arrangement direction and is fixed to the pair of end plates. The dividing member includes a retaining portion (42) that is positioned between the power storage elements and the connecting member, and that retains the connecting member.Type: GrantFiled: December 12, 2011Date of Patent: December 15, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Kojima Press Industry Co., LtdInventors: Hirotaka Watanabe, Masahiro Imai
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Publication number: 20150303420Abstract: In a temperature regulation structure according to the invention, the power storage element includes a power generation element for charging and discharging, and has a case body having an opening portion for incorporating the power generation element, and a lid that closes up the opening portion of the case body. Air for temperature regulation that comes into contact with the power storage element is supplied from a direction substantially perpendicular to a bottom face of the case body, which is opposed to the lid across the power generation element. The temperature of the power storage element can be efficiently regulated by bringing the air for temperature regulation into contact with the bottom face of the case body.Type: ApplicationFiled: November 30, 2012Publication date: October 22, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotaka WATANABE, Tuyoshi HAYASHI, Junta KATAYAMA
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Publication number: 20150234140Abstract: An optical fiber ribbon according to the present invention includes a collective coating layer containing an ultraviolet curable resin containing amorphous PPG and an amorphous monomer, the collective coating layer formed around coated optical fibers. The collective coating layer has an equilibrium elastic modulus of 12 MPa to 20 MPa, both inclusive, and a yield point elongation of 5% to 9%, both inclusive, and the adhesion between the collective coating layer and the outermost layers of the coated optical fibers is 12 N/cm to 15 N/cm, both inclusive.Type: ApplicationFiled: May 5, 2015Publication date: August 20, 2015Applicant: Furukawa Electric Co., Ltd.Inventors: Hiroki TANAKA, Minoru SAITO, Hirotaka WATANABE, Hiroaki ITO, Yukio ISHII, Yoshihiro ARASHITANI
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Patent number: 9067502Abstract: A vehicle has a motor serving as a driving source for running the vehicle, a high-power assembled battery and a high-capacity assembled battery each capable of supplying an electric power to the motor, and a temperature adjusting mechanism adjusting the temperature of each of the high-power assembled battery and the high-capacity assembled battery. The temperature adjusting mechanism supplies a heat exchange medium for use in the temperature adjustment of the high-power assembled battery and the high-capacity assembled battery to each of the assembled batteries. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery.Type: GrantFiled: August 30, 2011Date of Patent: June 30, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takurou Nakayama, Akihiro Sato, Tsuyoshi Hayashi, Hirotaka Watanabe, Kenji Kimura, Nobuyoshi Fujiwara
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Publication number: 20150179991Abstract: A battery module has a first power generating element (20) and a second power generating element (20) that are electrically connected in series to perform charging and discharging, a case (10) that houses the first power generating element and the second power generating element in a sealed state, a positive electrode terminal (52) that is electrically connected to a positive electrode of the first power generating element, a negative electrode terminal (53) that is electrically connected to a negative terminal of the second power generating element, and a valve (12d) that releases a gas generated in the case to the outside. The positive electrode terminal, the negative electrode terminal, and the case are provided in an installation area of the case that faces a specified direction, and the positive electrode terminal and the negative electrode terminal are disposed in one end side of the installation area while the valve is disposed in the other end side of the installation area.Type: ApplicationFiled: October 3, 2013Publication date: June 25, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junta Katayama, Hirotaka Watanabe, Takuro Nakayama
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Publication number: 20150064521Abstract: A battery includes a battery module provided by covering a group of batteries including arranged cells with an insulating external material, the battery module folded at an area where a conductive member connecting adjacent ones of the cells is located, a case having a hermetically sealing structure to house the battery module, and a coolant passage in which a coolant is passed along a face of the case closest to the conductive member, wherein the case has an internal pressure higher than an external pressure.Type: ApplicationFiled: December 10, 2012Publication date: March 5, 2015Applicants: KOJIMA INDUSTRIES CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotaka Watanabe, Masahiro Imai, Tuyoshi Hayashi, Kenji Kimura, Ryogo Murayama, Tomotaka Osakabe
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Publication number: 20140216842Abstract: A vehicle includes a motor serving as a driving source for running the vehicle, and a high-power assembled battery and a high-capacity assembled battery each capable of supplying an electric power to the motor and placed in a luggage space. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery. The high-capacity assembled battery has an energy capacity relatively larger than that of the high-power assembled battery and has a higher dependence of battery characteristic on temperature than that of the high-power assembled battery. The high-capacity assembled battery is placed over the high-power assembled battery in the vehicle.Type: ApplicationFiled: August 30, 2011Publication date: August 7, 2014Inventors: Tsuyoshi Hayashi, Kenji Kimura, Takurou Nakayama, Nobuyoshi Fujiwara, Akihiro Sato, Hirotaka Watanabe
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Publication number: 20140210209Abstract: A vehicle has a motor serving as a driving source for running the vehicle, a high-power assembled battery and a high-capacity assembled battery each capable of supplying an electric power to the motor, and a temperature adjusting mechanism adjusting the temperature of each of the high-power assembled battery and the high-capacity assembled battery. The temperature adjusting mechanism supplies a heat exchange medium for use in the temperature adjustment of the high-power assembled battery and the high-capacity assembled battery to each of the assembled batteries. The high-power assembled battery is capable of charge and discharge with a current relatively larger than that in the high-capacity assembled battery.Type: ApplicationFiled: August 30, 2011Publication date: July 31, 2014Inventors: Takurou Nakayama, Akihiro Sato, Tsuyoshi Hayashi, Hirotaka Watanabe, Kenji Kimura, Nobuyoshi Fujiwara
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Publication number: 20140196964Abstract: A vehicle has a motor and an engine each serving as a driving source for running the vehicle, and assembled batteries each capable of supplying an electric power to the motor. The assembled batteries include a high-power assembled battery and a high-capacity assembled battery. The high-power assembled battery is capable of charge and discharge with current relatively larger than that in the high-capacity assembled battery, and the high-capacity assembled battery has energy capacity relatively larger than that of the high-power assembled battery. In running of the vehicle using output from the motor with the engine stopped, the high-capacity assembled battery supplies more electric power to the motor than that in the high-power assembled battery. The high-power assembled battery is placed in a vehicle-inside space accommodating a passenger or baggage, and the high-capacity assembled battery is placed in a vehicle-outside space located on an outer face of a vehicle body.Type: ApplicationFiled: August 30, 2011Publication date: July 17, 2014Inventors: Tsuyoshi Hayashi, Kenji Kimura, Takurou Nakayama, Hirotaka Watanabe, Nobuyoshi Fujiwara, Akihiro Sato