Patents by Inventor Hiroya Mizuta
Hiroya Mizuta 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: 10847771Abstract: Provided is a vehicle including: an internal battery pack that has an internal battery module and an internal case housing the internal battery module, and is disposed inside the vehicle; and an external battery pack that has an external battery module and an external case housing the external battery module, and is disposed outside the vehicle, wherein an air exchange rate of the internal case is higher than an air exchange rate of the external case.Type: GrantFiled: November 21, 2017Date of Patent: November 24, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Goitsuka, Koichi Tanaka, Hiroya Mizuta
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Patent number: 10559858Abstract: A battery pack installed in a vehicle, the battery pack includes: a battery assembly; a battery module including a module case that houses the battery assembly; a pack case that houses the battery module; and a fire-extinguishing agent releasing unit including fire-extinguishing agent, disposed between the battery module and the pack case, wherein the fire fire-extinguishing agent releasing unit is configured to release the fire-extinguishing agent between the pack case and the module case.Type: GrantFiled: February 16, 2018Date of Patent: February 11, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Goitsuka, Koichi Tanaka, Hiroya Mizuta, Akihiro Kosaki
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Publication number: 20180241092Abstract: A battery pack installed in a vehicle, the battery pack includes: a battery assembly; a battery module including a module case that houses the battery assembly; a pack case that houses the battery module; and a fire-extinguishing agent releasing unit including fire-extinguishing agent, disposed between the battery module and the pack case, wherein the fire fire-extinguishing agent releasing unit is configured to release the fire-extinguishing agent between the pack case and the module case.Type: ApplicationFiled: February 16, 2018Publication date: August 23, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya GOITSUKA, Koichi TANAKA, Hiroya MIZUTA, Akihiro KOSAKI
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Publication number: 20180175350Abstract: Provided is a vehicle including: an internal battery pack that has an internal battery module and an internal case housing the internal battery module, and is disposed inside the vehicle; and an external battery pack that has an external battery module and an external case housing the external battery module, and is disposed outside the vehicle, wherein an air exchange rate of the internal case is higher than an air exchange rate of the external case.Type: ApplicationFiled: November 21, 2017Publication date: June 21, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Goitsuka, Koichi Tanaka, Hiroya Mizuta
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Patent number: 8932172Abstract: A differential includes a pinion shaft holder, a differential case, a first side gear, a second side gear, a first spring and a second spring. The differential case includes a first side boss portion and a second side boss portion. The first spring is interposed between the first side boss portion and the first side gear. The second spring is interposed between the second side boss portion and the second side gear. A recessed portion is provided on the pinion shaft holder and is configured to avoid interference with an auxiliary tool. The auxiliary tool maintains one of the first spring and the second spring in the compressed state.Type: GrantFiled: February 1, 2013Date of Patent: January 13, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Koichi Tanaka, Tatsuya Kawamura, Hiroya Mizuta, Koichi Nakamura, Rikiya Kubo, Yoshihiko Sasaki
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Publication number: 20130225356Abstract: A differential includes a pinion shaft holder, a differential case, a first side gear, a second side gear, a first spring and a second spring. The differential case includes a first side boss portion and a second side boss portion. The first spring is interposed between the first side boss portion and the first side gear. The second spring is interposed between the second side boss portion and the second side gear. A recessed portion is provided on the pinion shaft holder and is configured to avoid interference with an auxiliary tool. The auxiliary tool maintains one of the first spring and the second spring in the compressed state.Type: ApplicationFiled: February 1, 2013Publication date: August 29, 2013Inventors: Koichi Tanaka, Tatsuya Kawamura, Hiroya Mizuta, Koichi Nakamura, Rikiya Kubo, Yoshihiko Sasaki
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Patent number: 8262093Abstract: An oil seal for sealing a hollow rotary shaft in a power transmission apparatus, wherein the rotary shaft is formed with an internal flow passage through which oil flows and constituted such that the oil flies out as the rotary shaft rotates, including: a fixed portion that is fixedly attached to a case of the power transmission apparatus; a seal portion that seals the rotary shaft at a position that is axially offset position from the fixed portion and allows the rotary shaft to rotate; and a radiator portion that is formed from a metallic material between the fixed portion and the seal portion, receives the oil that flies out as the rotary shaft rotates, and dissipates heat generated by the seal portion by exchanging heat with the oil.Type: GrantFiled: March 30, 2009Date of Patent: September 11, 2012Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kazutoshi Omagari, Teruhito Fukuoka, Kenji Nagai, Naruhito Nagase, Youhei Habata, Hiroya Mizuta, Masaharu Tanaka
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Publication number: 20090243227Abstract: An oil seal for sealing a hollow rotary shaft in a power transmission apparatus, wherein the rotary shaft is formed with an internal flow passage through which oil flows and constituted such that the oil flies out as the rotary shaft rotates, including: a fixed portion that is fixedly attached to a case of the power transmission apparatus; a seal portion that seals the rotary shaft at a position that is axially offset position from the fixed portion and allows the rotary shaft to rotate; and a radiator portion that is formed from a metallic material between the fixed portion and the seal portion, receives the oil that flies out as the rotary shaft rotates, and dissipates heat generated by the seal portion by exchanging heat with the oil.Type: ApplicationFiled: March 30, 2009Publication date: October 1, 2009Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazutoshi OMAGARI, Teruhito FUKUOKA, Kenji NAGAI, Naruhito NAGASE, Youhei HABATA, Hiroya MIZUTA, Masaharu TANAKA