Patents by Inventor Masato Yoshino
Masato Yoshino 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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Publication number: 20160186799Abstract: A foil bearing unit includes: a first foil holder formed of a single component; a radial bearing foil mounted to an inner peripheral surface of the first foil holder; a thrust bearing foil mounted to an end surface of the first foil holder; and an inner member including: a shaft portion; and a flange portion projecting radially outward from the shaft portion. The inner member is supported in a radial direction by a fluid pressure that is generated in a radial bearing gap between a bearing surface of the radial bearing foil and an outer peripheral surface of the shaft portion, and the inner member is further supported in a thrust direction by a fluid pressure that is generated in a thrust bearing gap between a bearing surface of the thrust bearing foil and one end surface of the flange portion.Type: ApplicationFiled: August 24, 2014Publication date: June 30, 2016Inventors: Masato YOSHINO, Mitsuo KAWAMURA, Hiroki FUJIWARA
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Patent number: 9376959Abstract: A foil bearing includes an outer member (11), and a plurality of foils (13) that are mounted to an inner circumferential surface (11a) of the outer member (11) and directly face the inner circumferential surface (11a) of the outer member (11) in a radial direction without interposition of another member (such as back foils). The foils (13) each include: holding portions (13a, 13b) that are formed at both circumferential ends and held while in contact with the outer member (11); and a body portion (13c) that is formed circumferentially between the holding portions (13a, 13b) and has a bearing surface (A). At least an end portion on one side in a circumferential direction of the body portion (13c) is raised radially inward with respect to the inner circumferential surface (11a) of the outer member (11).Type: GrantFiled: December 16, 2013Date of Patent: June 28, 2016Assignee: NTN CORPORATIONInventors: Masato Yoshino, Hiroki Fujiwara
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Patent number: 9362576Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: GrantFiled: December 3, 2012Date of Patent: June 7, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Shoko Suyama, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Patent number: 9306221Abstract: A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer constituted of a mixed phase including an oxide having mixed conductivity and another oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said another oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys.Type: GrantFiled: March 14, 2013Date of Patent: April 5, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Fukasawa, Keizo Shimamura, Yoshio Hanakata, Masato Yoshino, Kentaro Matsunaga, Tsuneji Kameda, Yoshiyasu Itoh
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Publication number: 20160060776Abstract: A hydrogen production system that achieves highly-efficient hydrogen production even when hydrogen is produced by using the plurality of cell stacks is provided. A hydrogen production system includes a plurality of cell stacks provided within a reaction containment, the cell stacks generating hydrogen by high temperature steam electrolysis by supplying steam to the plurality of cell stacks, a first flow path guiding the steam to each of the cell stacks, a second flow path causing a carrier gas containing air as a main component to flow into the reaction containment, and a flow regulation device provided at an inlet of the steam in each of the cell stacks, the flow regulation device regulating a flow rate of the steam caused to flow into each of the cell stacks to be uniform.Type: ApplicationFiled: August 27, 2015Publication date: March 3, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yuko KAWAJIRI, Hisao WATANABE, Ryoji YOSHIMURA, Seiji FUJIWARA, Hiroyuki YAMAUCHI, Masafumi KOMAI, Masahiko YAMADA, Tsuneji KAMEDA, Masato YOSHINO, Takatoshi ASADA, Shigeo KASAI
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Publication number: 20150337894Abstract: A foil bearing includes an outer member (11), and a plurality of foils (13) that are mounted to an inner circumferential surface (11a) of the outer member (11) and directly face the inner circumferential surface (11a) of the outer member (11) in a radial direction without interposition of another member (such as back foils). The foils (13) each include: holding portions (13a, 13b) that are formed at both circumferential ends and held while in contact with the outer member (11); and a body portion (13c) that is formed circumferentially between the holding portions (13a, 13b) and has a bearing surface (A). At least an end portion on one side in a circumferential direction of the body portion (13c) is raised radially inward with respect to the inner circumferential surface (11a) of the outer member (11).Type: ApplicationFiled: December 16, 2013Publication date: November 26, 2015Applicant: NTN CORPORATIONInventors: Masato YOSHINO, Hiroki FUJIWARA
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Patent number: 9194422Abstract: A foil bearing includes a cylindrical outer member, a shaft inserted on an inner periphery of the cylindrical outer member, and a plurality of leaves arranged at a plurality of positions in a circumferential direction between an inner peripheral surface of the cylindrical outer member and an outer peripheral surface of the shaft. A region including a front end of each of the plurality of leaves serves as a top foil that has a bearing surface, and a region including a rear end of each of the plurality of leaves serves as a back foil that supports, from behind, the top foil of an adjacent one of the plurality of leaves. Any one or both of the front end and the rear end of each of the plurality of leaves are inclined with respect to an axial direction.Type: GrantFiled: September 20, 2012Date of Patent: November 24, 2015Assignee: NTN CORPORATIONInventors: Masato Yoshino, Hiroki Fujiwara
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Patent number: 9033579Abstract: A thrust foil bearing includes a thrust member, and a foil member mounted to an end surface of the thrust member and having a thrust bearing surface that forms a thrust bearing gap. The foil member includes a foil that integrally includes a plurality of leaves each having a free end on one side in a circumferential direction and the thrust bearing surface, and a coupling portion for coupling the plurality of leaves to each other.Type: GrantFiled: July 25, 2012Date of Patent: May 19, 2015Assignee: NTN CORPORATIONInventor: Masato Yoshino
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Patent number: 8999600Abstract: A solid oxide electrochemical cell of an embodiment includes: a cathode; an anode; and an electrolyte layer interposed between the cathode and the anode, wherein a porous region exists in a layer form in a region with a depth of 50% or less of the electrolyte layer from an anode side surface toward the cathode in the electrolyte layer or between the electrolyte layer and the anode.Type: GrantFiled: February 14, 2013Date of Patent: April 7, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Norikazu Osada, Takayuki Fukasawa, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino
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Publication number: 20140226925Abstract: In order have a leaf type foil bearing that is rotatable with high accuracy and adaptable to higher speed rotation, a foil bearing includes a cylindrical outer member, a shaft inserted on an inner periphery of the outer member, and leaves arranged at a plurality of positions in a circumferential direction between an inner peripheral surface of the outer member and an outer peripheral surface of the shaft. A region including a front end of each of the leaves serves as a top foil that has a bearing surface, and a region including a rear end of each of the leaves serves as a back foil that supports, from behind, the top foil of the adjacent leaf. Any one or both of the front end and the rear end of each of the leaves are inclined with respect to an axial direction.Type: ApplicationFiled: September 20, 2012Publication date: August 14, 2014Applicant: NTN CORPORATIONInventors: Masato Yoshino, Hiroki Fujiwara
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Publication number: 20140169707Abstract: Provided is a thrust foil bearing (20), including: a thrust member (21); and a foil member (22) mounted to an end surface of the thrust member (21) and having a thrust bearing surface (31c) that forms a thrust bearing gap (T), in which the foil member (22) includes a foil (30) integrally including: a plurality of leaves (31) each including: a free end (31a) on one side in a circumferential direction; and the thrust bearing surface (31c); and a coupling portion (32) for coupling the plurality of leaves (31) to each other.Type: ApplicationFiled: July 25, 2012Publication date: June 19, 2014Inventor: Masato Yoshino
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Publication number: 20130344411Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: ApplicationFiled: December 3, 2012Publication date: December 26, 2013Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsungaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Publication number: 20130248360Abstract: A solid oxide electrochemical cell of an embodiment includes: a cathode; an anode; and an electrolyte layer interposed between the cathode and the anode, wherein a porous region exists in a layer form in a region with a depth of 50% or less of the electrolyte layer from an anode side surface toward the cathode in the electrolyte layer or between the electrolyte layer and the anode.Type: ApplicationFiled: February 14, 2013Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Norikazu Osada, Takayuki Fukasawa, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino
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Patent number: 8394543Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: GrantFiled: August 11, 2011Date of Patent: March 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Shoko Suyama, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Publication number: 20120208100Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: ApplicationFiled: August 11, 2011Publication date: August 16, 2012Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Patent number: 7669942Abstract: A brake system and a brake device for use with automobiles is provided in which braking energy stored in an auxiliary pressure source can be effectively used for braking, even if an electrical system fails. The vehicle brake system includes a proportional pressure control valve for generating braking liquid pressure by adjusting the braking energy stored in the auxiliary pressure source. A passage transmits the liquid pressure generated by a brake pedal stroke, a switching valve opens the passage in the powered condition and closes the passage in the off-powered condition, and an auxiliary control portion activates the proportional pressure control valve. Even in the off-powered condition, the high pressure accumulated in the auxiliary pressure source can be used to adjust the required braking liquid pressure at the proportional pressure control valve.Type: GrantFiled: March 7, 2008Date of Patent: March 2, 2010Assignee: Advics Co., LtdInventors: Masato Yoshino, Hideaki Higashimura, Makoto Nishikimi, Keita Nakano, Yoichi Miyawaki
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Publication number: 20090068533Abstract: A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer including a mixed phase constituted of zirconia stabilized with yttrium oxide, ytterbium oxide, or scandium oxide and of an oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys; a meshy wiring formed on a surface layer part of the electrode layer and made of a material having higher electronic conductivity than the electrode layer; and a current collector which overlies the electrode layer and is in contact with at least the wiring.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takayuki Fukasawa, Keizo Shimamura, Yoshio Hanakata, Masato Yoshino, Kentaro Matsunaga, Tsuneji Kameda, Yoshiyasu Itoh
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Publication number: 20090068523Abstract: A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer 12 constituted of a mixed phase including an oxide having mixed conductivity and another oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said another oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys; a meshy wiring 21 formed on a surface layer part of the electrode layer and made of a material having higher electronic conductivity than the electrode layer; and a current collector 14 which overlies the electrode layer and is in contact with at least the wiring.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takayuki Fukasawa, Keizo Shimamura, Yoshio Hanakata, Masato Yoshino, Kentaro Matsunaga, Tsuneji Kameda, Yoshiyasu Itoh
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Publication number: 20080254333Abstract: To provide a high-temperature steam electrolytic apparatus and method that steam can be used as a common gas between a hydrogen electrode and an oxygen electrode, and the steam can be electrolyzed efficiently while the electrodes of the electrochemical cell are suppressed from oxidative and reductive degradation. A steam electrolytic apparatus 10, comprising an electrochemical cell composed of an electrolyte containing a solid oxide mainly, a hydrogen electrode and an oxygen electrode; a steam supply portion 13 for supplying the electrochemical cell 11 with a gas containing steam as a main component; a hydrogen gas discharge portion 14 for discharging hydrogen generated by the hydrogen electrode by electrolysis of the steam; and an oxygen gas discharge portion 15 for discharging oxygen generated by the oxygen electrode by electrolysis of the steam, wherein the oxygen electrode contains a reduction-resistant material.Type: ApplicationFiled: April 9, 2008Publication date: October 16, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masato YOSHINO, Kentaro Matsunaga, Seiji Fujiwara, Hiroyuki Yamauchi, Shigeo Kasai
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Publication number: 20080185910Abstract: A brake system and a brake device for use with automobiles is provided in which braking energy stored in an auxiliary pressure source can be effectively used for braking, even if an electrical system fails. The vehicle brake system includes a proportional pressure control valve for generating braking liquid pressure by adjusting the braking energy stored in the auxiliary pressure source. A passage transmits the liquid pressure generated by a brake pedal stroke, a switching valve opens the passage in the powered condition and closes the passage in the off-powered condition, and an auxiliary control portion activates the proportional pressure control valve. Even in the off-powered condition, the high pressure accumulated in the auxiliary pressure source can be used to adjust the required braking liquid pressure at the proportional pressure control valve.Type: ApplicationFiled: March 7, 2008Publication date: August 7, 2008Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Masato YOSHINO, Hideaki HIGASHIMURA, Makoto NISHIKIMI, Keita NAKANO, Yoichi MIYAWAKI