Patents by Inventor Nobuhiko Nakagaki
Nobuhiko Nakagaki 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: 10340532Abstract: A separator for fuel cell includes a corrugated portion formed to have a corrugated cross section where a first groove that is concave to a first surface to form a flow path for a first fluid on the first surface and a second groove that is concave to a second surface opposite to the first surface to form a flow path for a second fluid on the second surface are arranged alternately and repeatedly. Each of the second grooves has at least one shallower groove section formed to have a less depth from the second surface than depth of a remaining groove section and provided to form a communication flow channel on the first surface side, which is arranged to communicate between two flow path spaces for the first fluid that are adjacent to each other across the shallower groove section.Type: GrantFiled: September 13, 2016Date of Patent: July 2, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Okabe, Hiroya Nakaji, Makoto Yoshida, Shigetaka Hamada, Takuya Kurihara, Kenji Sato, Hideaki Tanaka, Nobuhiko Nakagaki, Junji Ueda, Katsuhiko Kinoshita
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Patent number: 9722260Abstract: An ion exchanger includes a lower casing, an upper casing, and a cartridge. The lower casing includes an upper opening and a circumferential wall, which includes an intake port and a discharge port. The upper casing includes a lid, which is arranged on the opening of the lower casing, and a cylinder, which extends downward from the lid and is accommodated in the circumferential wall. The cartridge, which is provided integrally with the inner side of the cylinder, accommodates an ion exchange resin. The cylinder includes a communication hole, through which the inner side of the cylinder is in communication with the intake port. The upper casing includes an accumulation limiting structure that limits the air remaining immediately below the lower surface of the lid in the upper casing after flowing into the cylinder together with coolant.Type: GrantFiled: November 24, 2015Date of Patent: August 1, 2017Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Nobuhiko Nakagaki, Junko Ohira, Yuki Matsuda
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Publication number: 20160380277Abstract: A separator for fuel cell includes a corrugated portion formed to have a corrugated cross section where a first groove that is concave to a first surface to form a flow path for a first fluid on the first surface and a second groove that is concave to a second surface opposite to the first surface to form a flow path for a second fluid on the second surface are arranged alternately and repeatedly. Each of the second grooves has at least one shallower groove section formed to have a less depth from the second surface than depth of a remaining groove section and provided to form a communication flow channel on the first surface side, which is arranged to communicate between two flow path spaces for the first fluid that are adjacent to each other across the shallower groove section.Type: ApplicationFiled: September 13, 2016Publication date: December 29, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki OKABE, Hiroya NAKAJI, Makoto YOSHIDA, Shigetaka HAMADA, Takuya KURIHARA, Kenji SATO, Hideaki TANAKA, Nobuhiko NAKAGAKI, Junji UEDA, Katsuhiko KINOSHITA
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Publication number: 20160164118Abstract: An ion exchanger includes a lower casing, an upper casing, and a cartridge. The lower casing includes an upper opening and a circumferential wall, which includes an intake port and a discharge port. The upper casing includes a lid, which is arranged on the opening of the lower casing, and a cylinder, which extends downward from the lid and is accommodated in the circumferential wall. The cartridge, which is provided integrally with the inner side of the cylinder, accommodates an ion exchange resin. The cylinder includes a communication hole, through which the inner side of the cylinder is in communication with the intake port. The upper casing includes an accumulation limiting structure that limits the air remaining immediately below the lower surface of the lid in the upper casing after flowing into the cylinder together with coolant.Type: ApplicationFiled: November 24, 2015Publication date: June 9, 2016Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Nobuhiko NAKAGAKI, Junko OHIRA, Yuki MATSUDA
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Patent number: 8685587Abstract: A discharge port is located at a lower portion of the case of a gas-liquid separator. A discharge valve is located at the discharge port. A water retaining portion is located at the bottom of the case. The water retaining portion is located at a position lower than the discharge valve. An upward inclination surface is formed on the bottom of the water retaining portion. The upward inclination surface is inclined upward toward the discharge valve. A downward inclination surface is formed on the bottom of the water retaining portion. The downward inclination surface is inclined downward toward the upward inclination surface. A cover portion is located in an upper portion of the water retaining portion. The cover portion defines a gas passage in an upper portion of the water retaining portion. The gas passage is open at a portion closer to the inlet and connected to the discharge valve.Type: GrantFiled: December 15, 2008Date of Patent: April 1, 2014Assignee: Toyota Boshoku Kabushiki KaishaInventors: Junko Ohira, Yasunari Arai, Akishi Morita, Nobuhiko Nakagaki, Takeshi Asai, Hiroyuki Sekine
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Publication number: 20130177827Abstract: A separator for fuel cell includes a corrugated portion formed to have a corrugated cross section where a first groove that is concave to a first surface to form a flow path for a first fluid on the first surface and a second groove that is concave to a second surface opposite to the first surface to form a flow path for a second fluid on the second surface are arranged alternately and repeatedly. Each of the second grooves has at least one shallower groove section formed to have a less depth from the second surface than depth of a remaining groove section and provided to form a communication flow channel on the first surface side, which is arranged to communicate between two flow path spaces for the first fluid that are adjacent to each other across the shallower groove section.Type: ApplicationFiled: September 16, 2010Publication date: July 11, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Okabe, Hiroya Nakaji, Makoto Yoshida, Shigetaka Hamada, Takuya Kurihara, Kenji Sato, Hideaki Tanaka, Nobuhiko Nakagaki, Junji Ueda, Katsuhiko Kinoshita
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Patent number: 8308847Abstract: Provided is a filter for removing a sulfur-containing-gas (1), which removes the sulfur-containing-gas by being brought into contact with the sulfur-containing-gas in a gas flow path, the filter including a former filter (11) disposed on an upstream side of the gas flow path, and a latter filter (12) disposed on a downstream side of the gas flow path, wherein the former filter (11) includes a first material for removing a sulfur-containing-gas, the first material including a porous support, and iodine which is supported on the porous support, and is produced by catalytic pyrolysis of ammonium iodide at a thermal decomposition ratio of 80% or more by use of the porous support as a catalyst, and the latter filter (12) includes a second material for removing a sulfur-containing-gas, the second material including an activated carbon fiber, and an alkali component which is supported on the activated carbon fiber.Type: GrantFiled: January 24, 2008Date of Patent: November 13, 2012Assignee: Toyota Boshoku Kabushiki KaishaInventors: Kazuhiro Fukumoto, Minoru Takahara, Kenichirou Suzuki, Nobuhiko Nakagaki, Yasunari Arai, Minoru Honda
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Patent number: 7837870Abstract: An ion-removing apparatus includes a housing, a first ion-removing unit and a second ion-removing unit. The housing includes an inlet port, a liquid discharge port and a gas discharge port. The first ion-removing unit is disposed within the housing, so that the fluid that has entered the housing via the inlet port flows through the first ion-removing unit. The first ion-removing unit serves to remove a first ion, such anions, contained in the fluid. The second ion-removing unit is disposed within the housing, so that the fluid that has flown though the first ion-removing unit flows through the first ion-removing unit. The second ion-removing unit serves to remove a second ion, such as cations contained in the fluid. The liquid contained in the fluid that has flown through the second ion-removing unit is discharged from the liquid discharge port. The gas contained in the fluid that has flown through the second ion-removing unit is discharged from the gas discharge port.Type: GrantFiled: June 15, 2006Date of Patent: November 23, 2010Assignees: Toyota Boshoku Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Yasunari Arai, Akishi Morita, Nobuhiko Nakagaki, Hiroyuki Sekine
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Publication number: 20100024642Abstract: Provided is a filter for removing a sulfur-containing-gas (1), which removes the sulfur-containing-gas by being brought into contact with the sulfur-containing-gas in a gas flow path, the filter comprising a former filter (11) disposed on an upstream side of the gas flow path, and a latter filter (12) disposed on a downstream side of the gas flow path, wherein the former filter (11) comprises a first material for removing a sulfur-containing-gas, the first material comprising a porous support, and iodine which is supported on the porous support, and is produced by catalytic pyrolysis of ammonium iodide at a thermal decomposition ratio of 80% or more by use of the porous support as a catalyst, and the latter filter (12) comprises a second material for removing a sulfur-containing-gas, the second material comprising an activated carbon fiber, and an alkali component which is supported on the activated carbon fiber.Type: ApplicationFiled: January 24, 2008Publication date: February 4, 2010Applicant: Toyota Boshoku Kabushiki KaishaInventors: Kazuhiro Fukumoto, Minoru Takahara, Kenichirou Suzuki, Nobuhiko Nakagaki, Yasunari Arai, Minoru Honda
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Publication number: 20090162730Abstract: A discharge port is located at a lower portion of the case of a gas-liquid separator. A discharge valve is located at the discharge port. A water retaining portion is located at the bottom of the case. The water retaining portion is located at a position lower than the discharge valve. An upward inclination surface is formed on the bottom of the water retaining portion. The upward inclination surface is inclined upward toward the discharge valve. A downward inclination surface is formed on the bottom of the water retaining portion. The downward inclination surface is inclined downward toward the upward inclination surface. A cover portion is located in an upper portion of the water retaining portion. The cover portion defines a gas passage in an upper portion of the water retaining portion. The gas passage is open at a portion closer to the inlet and connected to the discharge valve.Type: ApplicationFiled: December 15, 2008Publication date: June 25, 2009Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Junko OHIRA, Yasunari ARAI, Akishi MORITA, Nobuhiko NAKAGAKI, Takeshi ASAI, Hiroyuki SEKINE
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Patent number: 7520921Abstract: A gas-removing device serves to remove impurity gases from the air supplied to a fuel cell via an air supply system. The gas-removing device includes a porous material and an alternate adsorption membrane. The porous material has micropores formed therein in order to absorb impurity gas particles contained in the air. The alternate adsorption membrane is formed on the inner walls of the micropores of the porous material in order to further adsorb and retain at least one type of impurity gas particles from among the impurity gas particles absorbed by the porous material. The alternate adsorption membrane includes at least one positively charged layer and at least one negatively charged layer laid alternately to one another.Type: GrantFiled: January 14, 2005Date of Patent: April 21, 2009Assignees: Toyota Boshoku Kabushiki Kaisha, SNT Co., Ltd.Inventors: Yasunari Arai, Akishi Morita, Nobuhiko Nakagaki
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Publication number: 20080011674Abstract: Fibers usable for an ion exchange filter includes a base material and ion exchange resin particles. The base material is made of a hydrophobic resin. The ion exchange resin particles are embedded within the base material At least some of the ion exchange resin particles are exposed on a surface of the base material.Type: ApplicationFiled: July 12, 2007Publication date: January 17, 2008Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nobuhiko Nakagaki, Yasunari Arai, Akishi Morita, Norio Yamagishi, Hiroyuki Sekine
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Publication number: 20070157815Abstract: A gas-removing device serves to remove impurity gases from the air supplied to a fuel cell via an air supply system. The gas-removing device includes a porous material and an alternate adsorption membrane. The porous material has micropores formed therein in order to absorb impurity gas particles contained in the air. The alternate adsorption membrane is formed on the inner walls of the micropores of the porous material in order to further adsorb and retain at least one type of impurity gas particles from among the impurity gas particles absorbed by the porous material. The alternate adsorption membrane includes at least one positively charged layer and at least one negatively charged layer laid alternately to one another.Type: ApplicationFiled: January 14, 2005Publication date: July 12, 2007Inventors: Yasunari Arai, Akishi Morita, Nobuhiko Nakagaki
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Publication number: 20070000791Abstract: An ion-removing apparatus includes a housing, a first ion-removing unit and a second ion-removing unit. The housing includes an inlet port, a liquid discharge port and a gas discharge port. The first ion-removing unit is disposed within the housing, so that the fluid that has entered the housing via the inlet port flows through the first ion-removing unit. The first ion-removing unit serves to remove a first ion, such anions, contained in the fluid. The second ion-removing unit is disposed within the housing, so that the fluid that has flown though the first ion-removing unit flows through the first ion-removing unit. The second ion-removing unit serves to remove a second ion, such as cations contained in the fluid. The liquid contained in the fluid that has flown through the second ion-removing unit is discharged from the liquid discharge port. The gas contained in the fluid that has flown through the second ion-removing unit is discharged from the gas discharge port.Type: ApplicationFiled: June 15, 2006Publication date: January 4, 2007Inventors: Yasunari Arai, Akishi Morita, Nobuhiko Nakagaki, Hiroyuki Sekine