Patents by Inventor Yoshiaki Kawakami
Yoshiaki Kawakami 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: 11959198Abstract: A knit fabric production method includes a step of producing a knit fabric K1 from an untwisted yarn Y0 while producing the untwisted yarn Y0 by disposing a fiber bundle FB around a linear core member CP formed of a soluble polymer, falsely twisting the fiber bundle FB by using an air flow swirling in a predetermined first direction and simultaneously causing open end fibers OF to adhere to an outer circumferential surface of the falsely twisted fiber bundle FB by using an air flow swirling in a second direction opposite the first direction, and untwisting the falsely twisted fiber bundle FB.Type: GrantFiled: November 12, 2019Date of Patent: April 16, 2024Assignee: KONDO COTTON SPINNING CO., LTD.Inventors: Masatoshi Kawakami, Yoshiaki Watai, Kyosuke Kanda, Yuki Shimizu
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Patent number: 11858370Abstract: A vehicle includes: a battery that is chargeable with electric power supplied from a charger provided outside the vehicle; and an air-conditioning and cooling system that cools the battery. An ECU controls a charging operation for the battery such that the battery is charged under a charging condition of a constant current which is constant over a charging period from start of charging to satisfaction of a completion condition. The ECU sets the charging condition such that a battery temperature when the completion condition is satisfied becomes an upper limit temperature, based on an amount of heat generation in the battery caused by charging and an amount of cooling of the battery by the air-conditioning and cooling system.Type: GrantFiled: January 10, 2020Date of Patent: January 2, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio Matsuyama, Yugo Mochizuki, Yoshiaki Kawakami, Masataka Ogushi
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Publication number: 20220206763Abstract: An information processing system, which provides services in cooperation with a cloud system, includes element accumulation means for accumulating an element included in a page for providing a service on the cloud system, page-data generating means for generating a page for a new service by using the element accumulated by the element accumulation means, and element-program execution means for executing a program associated with the element included in the page.Type: ApplicationFiled: April 23, 2020Publication date: June 30, 2022Applicant: LAKEEL, INC.Inventors: Yoshiaki KAWAKAMI, Jun OYA
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Publication number: 20200231060Abstract: A vehicle includes: a battery that is chargeable with electric power supplied from a charger provided outside the vehicle; and an air-conditioning and cooling system that cools the battery. An ECU controls a charging operation for the battery such that the battery is charged under a charging condition of a constant current which is constant over a charging period from start of charging to satisfaction of a completion condition. The ECU sets the charging condition such that a battery temperature when the completion condition is satisfied becomes an upper limit temperature, based on an amount of heat generation in the battery caused by charging and an amount of cooling of the battery by the air-conditioning and cooling system.Type: ApplicationFiled: January 10, 2020Publication date: July 23, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio MATSUYAMA, Yugo MOCHIZUKI, Yoshiaki KAWAKAMI, Masataka OGUSHI
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Publication number: 20200109882Abstract: An operating method of a heat-storage system includes the steps of executing a first operating mode to supply heat to a first hydrogen storage alloy in a first tank, to cause movement of hydrogen from the first hydrogen storage alloy in the first tank to a second hydrogen storage alloy in a second tank, the second hydrogen storage alloy being different from the first hydrogen storage alloy in dissociation pressure characteristic with respect to an alloy temperature, and executing a second operating mode to supply cold of outside air to the first hydrogen storage alloy, to cause movement of hydrogen from the second hydrogen storage alloy in the second tank to the first hydrogen storage alloy in the first tank, in which the step of executing the first operating mode includes a step of storing a temperature generated in the second hydrogen storage alloy in a heat storage device.Type: ApplicationFiled: December 5, 2019Publication date: April 9, 2020Inventors: Yoshiaki KAWAKAMI, Atsushi KATO, Yasufumi TAKAHASHI
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Patent number: 10403941Abstract: A temperature controller, for a battery, includes: a temperature control part configured to control a temperature of the battery by a phase change of a heat medium between a liquid phase and a gas phase; a gas phase flow passage through which a gas phase heat medium that flows out of the temperature control part flows; a heat medium cooling part configured to condense the gas phase heat medium that flows in from the gas phase flow passage; and a liquid phase flow passage through which the liquid phase heat medium flows from the heat medium cooling part to the temperature control part, the temperature control part and the heat medium cooling part being arranged such that a liquid surface of the liquid phase heat medium in the heat medium cooling part is positioned on an upper side than a liquid surface of the liquid phase heat medium in the temperature control part.Type: GrantFiled: August 13, 2014Date of Patent: September 3, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiko Arai, Yoshiaki Kawakami
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Patent number: 9951973Abstract: A cooling system (1) that cools an HV apparatus (31) includes a compressor (12) that circulates a refrigerant, a heat exchanger (14) that performs heat exchange between the refrigerant and outside air, an expansion valve (16) that reduces the pressure of the refrigerant, a heat exchanger (18) that performs heat exchange between the refrigerant and air-conditioning air, a cooling portion (30) that cools the HV apparatus (31) using the refrigerant that flows between the heat exchanger (14) and the expansion valve (16), and a gas accumulator (70) that retains a gas-phase refrigerant gasified by heat exchange with the HV apparatus (31) in the cooling portion (30).Type: GrantFiled: August 30, 2012Date of Patent: April 24, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato, Yuichi Ohno, Kazuhide Uchida
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Patent number: 9919613Abstract: A battery temperature regulating device is provided with a low temperature heat exchanger configured to allow heat exchange with the air conditioning system, a battery temperature regulating unit configured to allow heat exchange with the low temperature heat exchanger so as to regulate the temperature of the battery to approach a target temperature, and a control unit configured to control the battery temperature regulating unit. In the case where the charging is performed from the power supply external to the vehicle, the control unit determines whether or not it is necessary to accumulate heat in the battery, and in the case where it is determined that the heat accumulation is necessary, the control unit sets the target temperature of the battery during charging higher than that in the case where it is determined that the heat accumulation is unnecessary.Type: GrantFiled: March 12, 2015Date of Patent: March 20, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kunihiko Arai, Yoshiaki Kawakami
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Patent number: 9923214Abstract: A heat exchanging system exchanging heat between refrigerant and a battery includes: a compressor circulating refrigerant; a heat exchanger exchanging heat between the refrigerant and outside air; an expansion valve decompressing the refrigerant; a heat exchanger exchanging heat between the refrigerant and air-conditioning air; a heat exchanging portion connected in parallel with the heat exchanger and exchanging heat between the refrigerant and the battery; a bypass passage providing fluid communication between a path of the refrigerant between the compressor and the heat exchanger and a path of the refrigerant between the expansion valve and the heat exchanger; an expansion valve provided in the bypass passage and decompressing the refrigerant flowing through the bypass passage; and a selector valve allowing or interrupting flow of the refrigerant via the bypass passage.Type: GrantFiled: November 16, 2012Date of Patent: March 20, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato
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Patent number: 9732663Abstract: A cooling system for cooling a hybrid vehicle apparatus includes a compressor that circulates a refrigerant, a first heat exchanger that carries out heat exchange between the refrigerant and outside air, an expansion valve that reduces the pressure of the refrigerant, a second heat exchanger that carries out heat exchange between the refrigerant and air-conditioning air, a cooling portion that cools the hybrid vehicle apparatus using the refrigerant that flows between the heat exchanger and the expansion valve, a gas-liquid separator that separates the refrigerant that flows between the heat exchanger and the cooling portion into a liquid-phase refrigerant and a gas-phase refrigerant, and a liquid accumulator that is provided between the gas-liquid separator and the cooling portion, and that retains the liquid-phase refrigerant separated by the gas-liquid separator.Type: GrantFiled: July 31, 2012Date of Patent: August 15, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato, Yuichi Ohno, Kazuhide Uchida
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Patent number: 9681590Abstract: A cooling system that cools HV equipment includes a compressor that circulates refrigerant, a condenser that condenses the refrigerant, a gas-liquid separator that stores the refrigerant in liquid form that is condensed by the condenser, an expansion valve that reduces a pressure of the refrigerant, an evaporator that vaporizes the refrigerant that is reduced in pressure by the expansion valve, a first passage and a second passage through which the refrigerant flows from the gas-liquid separator toward the expansion valve, and that are provided in parallel, and a cooling portion that is provided along the second passage and cools the heat source using the refrigerant. The refrigerant in liquid form flows from the gas-liquid separator through the second passage.Type: GrantFiled: March 16, 2012Date of Patent: June 13, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INCInventors: Kazuhide Uchida, Yuichi Ohno, Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato
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Patent number: 9631544Abstract: A cooling system includes: a compressor; a first condenser; a cooling portion; a heat exchanger; a first line; a second line; a switching device; and an ejector. The first line forms a vapor compression refrigeration cycle by flowing refrigerant in order of the heat exchanger, the compressor, the first condenser and the cooling portion. The second line forms a heat pipe by circulating refrigerant between the first condenser and the cooling portion. The switching device flows refrigerant through the first line when air conditioning is performed, and flows refrigerant through the second line when air conditioning is stopped. The ejector is configured to, when refrigerant flows from the compressor to the first condenser via the ejector, draw refrigerant from the second line and join the drawn refrigerant into refrigerant from the compressor.Type: GrantFiled: March 7, 2013Date of Patent: April 25, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuhide Uchida, Yuichi Ohno, Yoshiaki Kawakami
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Patent number: 9612041Abstract: Exemplary embodiments of a cooling apparatus cool a charger for charging a storage battery upon reception of a supply of power from a power supply. Exemplary embodiments include a compressor that circulates a refrigerant, a cooling unit provided on a path along which the refrigerant flows between the heat exchanger and the expansion valve to cool the charger using the refrigerant, a refrigerant passage through which the refrigerant flows between the compressor and the heat exchanger, a refrigerant passage through which the refrigerant flows between the cooling unit and the expansion valve, and a connecting passage connecting the refrigerant passage and the refrigerant passage. When heating occurs, frost formation can be suppressed without increasing configuration complexity and power consumption.Type: GrantFiled: April 17, 2012Date of Patent: April 4, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato, Kazuhide Uchida, Yuichi Ohno
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Patent number: 9599239Abstract: A selector valve includes: a first valve element having a through-hole; a first housing having a radial hole through which fluid flowing though the through-hole passes, the first housing accommodating the first valve element; a second valve element having a through-hole; a second housing having radial holes through which fluid flowing through the through-hole passes, the second housing accommodating the second valve element; and a motor configured to integrally actuate the first valve element and the second valve element. A hollow space configured to suppress transfer of heat between the first valve element and the second valve element is formed between the first valve element and the second valve element. A hollow space configured to suppress transfer of heat between the first housing and the second housing is formed between the first housing and the second housing.Type: GrantFiled: September 5, 2012Date of Patent: March 21, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Ohno, Kazuhide Uchida, Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato
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Publication number: 20160204488Abstract: A temperature controller, for a battery, includes: a temperature control part configured to control a temperature of the battery by a phase change of a heat medium between a liquid phase and a gas phase; a gas phase flow passage through which a gas phase heat medium that flows out of the temperature control part flows; a heat medium cooling part configured to condense the gas phase heat medium that flows in from the gas phase flow passage; and a liquid phase flow passage through which the liquid phase heat medium flows from the heat medium cooling part to the temperature control part, the temperature control part and the heat medium cooling part being arranged such that a liquid surface of the liquid phase heat medium in the heat medium cooling part is positioned on an upper side than a liquid surface of the liquid phase heat medium in the temperature control part.Type: ApplicationFiled: August 13, 2014Publication date: July 14, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiko ARAI, Yoshiaki KAWAKAMI
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Patent number: 9322586Abstract: A cooling system includes: a compressor that circulates refrigerant; a heat exchanger that exchanges heat between the refrigerant and outside air; a cooling portion that uses the refrigerant to cool the heat generating source; a first line through which the refrigerant, which has been discharged from the compressor, flows to the cooling portion; a second line through which the refrigerant circulates between the heat exchanger and the cooling portion; and a selector valve that switches between fluid communication of the first line and fluid communication of the second line. A control device includes a detecting unit configured to detect an abnormality of the compressor; and a switching unit configured to switch the selector valve to interrupt the fluid communication of the first line and to allow the fluid communication of the second line when the abnormality has been detected by the detecting unit.Type: GrantFiled: September 4, 2012Date of Patent: April 26, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichi Ohno, Kazuhide Uchida, Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato
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Publication number: 20160111762Abstract: An electrical storage apparatus of the invention has a first and a second electrical storage module arranged in a first direction. Each of the electrical storage modules has a plurality of cylindrical electrical storage elements, a support plate and a casing. The support plate supports a portion of each of the electrical storage elements. The casing surrounds the plurality of electrical storage elements and the support plate to form a space in which air moves. The casing has an air intake opening for moving air from a passage into the space and an air discharge opening for moving the air in the space out of the casing. The passage for moving the air in a second direction orthogonal to the first direction is formed between the first and second storage modules, and the air is used for regulating temperature of each of the electrical storage modules.Type: ApplicationFiled: October 15, 2015Publication date: April 21, 2016Inventors: Yoshiaki Kawakami, Masatoshi Kouno
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Patent number: 9233594Abstract: A cooling device utilizes a vapor compression refrigeration cycle including a compressor, a condenser, a receiver, an expansion valve, an evaporator, and an accumulator to cool a heat source with a coolant. The receiver separates the coolant having been subjected to heat exchange by the condenser into gas and liquid. The accumulator separates the coolant having been subjected to heat exchange by the evaporator into gas and liquid. The cooling device opens a switch valve capable of bringing the receiver and the accumulator into communication with each other to move the coolant liquid in the accumulator to the receiver. The cooling device restores the pressure difference between the receiver and the accumulator after the movement of the coolant liquid to the pressure difference before the movement of the coolant liquid by a pressure regulating unit.Type: GrantFiled: February 23, 2012Date of Patent: January 12, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiko Arai, Yoshiaki Kawakami
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Patent number: 9217594Abstract: A method of controlling a cooling device capable of stably cooling a heat source is provided. A cooling device includes a first passage through which a coolant discharged from a compressor flows into a cooling unit for cooling EV equipment; a second passage through which the coolant is circulated between a heat exchanger and the cooling unit; a switching valve switching communication of the first passage and communication of the second passage; and a liquid storage container storing a liquid coolant condensed in the heat exchanger. The control method includes the steps of: increasing an amount of the liquid coolant stored in the liquid storage container; and switching the switching valve so as to block the first passage and allow communication of the second passage.Type: GrantFiled: October 5, 2011Date of Patent: December 22, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato
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Publication number: 20150266392Abstract: A battery temperature regulating device is provided with a low temperature heat exchanger configured to allow heat exchange with the air conditioning system, a battery temperature regulating unit configured to allow heat exchange with the low temperature heat exchanger so as to regulate the temperature of the battery to approach a target temperature, and a control unit configured to control the battery temperature regulating unit. In the case where the charging is performed from the power supply external to the vehicle, the control unit determines whether or not it is necessary to accumulate heat in the battery, and in the case where it is determined that the heat accumulation is necessary, the control unit sets the target temperature of the battery during charging higher than that in the case where it is determined that the heat accumulation is unnecessary.Type: ApplicationFiled: March 12, 2015Publication date: September 24, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiko Arai, Yoshiaki Kawakami