Patents by Inventor Makoto Fukui
Makoto Fukui 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: 20190257430Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seal, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: ApplicationFiled: May 6, 2019Publication date: August 22, 2019Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Kasumi MISHIMA, Naruto ITO, Makoto FUKUI, Takashige INAGAKI, Sunao KITAMURA, Hiroshi MISUMI
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Patent number: 10337622Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seat, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: GrantFiled: September 15, 2016Date of Patent: July 2, 2019Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru Yoshioka, Kasumi Mishima, Naruto Ito, Makoto Fukui, Takashige Inagaki, Sunao Kitamura, Hiroshi Misumi
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Publication number: 20190056032Abstract: An eccentric valve has a drive mechanism, a drive force receiving part, a bearing for supporting a rotary shaft, and a return spring for generating a return spring force. During non-operation of the drive mechanism, the eccentric valve generates a separating-direction urging force to cause the rotary shaft to incline about the bearing serving as a fulcrum and urge the valve element in a direction away from the valve seat, the separating-direction urging force being a force caused by the return spring force. Either the valve element or the valve seat is provided with a sealing member to seal between the valve element and the valve seat during non-operation of the drive mechanism.Type: ApplicationFiled: September 15, 2016Publication date: February 21, 2019Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Kasumi MISHIMA, Naruto ITO, Makoto FUKUI, Takashige INAGAKI, Sunao KITAMURA, Hiroshi MISUMI
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Publication number: 20180320790Abstract: A flow control valve comprising a valve seat provided with a valve hole and a seat surface, a valve element formed with a sealing surface corresponding to the seat surface, and a rotary shaft to which the valve element is integrally provided, the central axis of the rotary shaft being arranged eccentrically toward the radial direction of the valve hole from the central axis of the valve hole, and the sealing surface being arranged eccentrically toward the direction in which the central axis of the valve element extends from the central axis of the rotary shaft. The flow control valve has a valve element movement direction restriction member for stopping rotation of the valve element, and thereafter moving the valve element toward the valve seat while also relatively rotating the valve element about the eccentric axis eccentric from the central axis of the rotary shaft, relative to the rotary shaft.Type: ApplicationFiled: December 22, 2016Publication date: November 8, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Makoto FUKUI, Mamoru YOSHIOKA, Naruto ITO, Takashige INAGAKI, Kasumi MISHIMA
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Patent number: 9932924Abstract: A blow-by gas returning (BGV) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a BGV passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a PCV valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ECU) for diagnosis. The ECU controls the PCV valve to a first opening degree and a second opening degree when an engine is during deceleration fuel cut, and diagnoses abnormality of the BGV apparatus based on a first intake amount detected under control with the first opening degree and a second intake amount detected under control with the second opening degree.Type: GrantFiled: November 29, 2016Date of Patent: April 3, 2018Assignee: AISAN KOBYO KABUSHIKI KAISHAInventors: Mamoru Yoshioka, Shinji Kawai, Makoto Fukui, Kasumi Mishima, Hirokazu Tashita, Tsutomu Kuniyoshi, Kensuke Hiroi
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Publication number: 20180069249Abstract: In a fuel cell system, each of an inlet sealing valve and an outlet integration valve is provided with a valve seat including a valve hole and a seat surface formed on a circumferential edge of the valve hole, a valve element formed, on its outer periphery, with a seal surface corresponding to the seat surface, and a motor to move the valve element away from the valve seat upon receipt of electric power supplied from outside. The valve seat is provided with a seal member to seal between the valve element and the valve seat during non-operation of the motor. In an inlet-side bypass passage connected to an air supply passage by detouring around the inlet sealing valve, there are arranged an inlet-side bypass passage and an inlet bypass valve.Type: ApplicationFiled: August 31, 2017Publication date: March 8, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Naruto ITO, Makoto FUKUI
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Publication number: 20180034086Abstract: A fuel cell system uses, as an inlet sealing valve, an eccentric valve having a rubber seat provided with a seal part having such a shape as to increase the surface pressure of a portion in contact with a seal surface of a valve element when pressure in an air supply passage rises. Each of an outlet integration valve and a bypass valve is constituted of an eccentric valve basically identical in structure to the inlet sealing valve. When supply of air to a fuel cell stack is to be stopped during deceleration of a vehicle, a controller closes the inlet sealing valve and opens the bypass valve and, after the inlet sealing valve is fully closed, closes the bypass valve.Type: ApplicationFiled: June 30, 2017Publication date: February 1, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Naruto ITO, Makoto FUKUI, Hiroshi SUGIURA, Toshiyuki FUJIMURA, Kasumi MISHIMA
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Publication number: 20180010699Abstract: A sealing valve is provided with a valve seat including a valve hole, a valve element to open and close the valve hole, and a seal member to seal between the valve element and the valve seat during full closing. The seal member includes a fixed part fixed to the valve seat, a contact part to be brought into contact with a seal surface of the valve element, and a constricted part provided between the fixed part and the contact part. The contact part is rotatable about the constricted part.Type: ApplicationFiled: June 26, 2017Publication date: January 11, 2018Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Kasumi MISHIMA, Makoto FUKUI, Naruto ITO, Masahiro KOBAYASHI
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Publication number: 20170175662Abstract: A blow-by gas returning (BGV) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a BGV passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a PCV valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ECU) for diagnosis. The ECU controls the PCV valve to a first opening degree and a second opening degree when an engine is during deceleration fuel cut, and diagnoses abnormality of the BGV apparatus based on a first intake amount detected under control with the first opening degree and a second intake amount detected under control with the second opening degree.Type: ApplicationFiled: November 29, 2016Publication date: June 22, 2017Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Mamoru YOSHIOKA, Shinji KAWAI, Makoto FUKUI, Kasumi MISHIMA, Hirokazu TASHITA, Tsutomu KUNIYOSHI, Kensuke HIROI
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Patent number: 9099643Abstract: A magnetoresistive device includes an MR element including a metal layer, and an insulating portion made of magnesium oxide and in contact with the MR element. A method of manufacturing the magnetoresistive device includes the step of removing an unwanted magnesium oxide film that is formed by the magnesium oxide in the process of forming the insulating portion. In this step, the unwanted magnesium oxide film is wet etched by using an etchant containing an aqueous ammonia solution.Type: GrantFiled: February 26, 2013Date of Patent: August 4, 2015Assignee: TDK CORPORATIONInventors: Hitoshi Hatate, Atsuyoshi Tsunoda, Makoto Fukui, Shuji Okame, Ken Fujii
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Publication number: 20140242728Abstract: A magnetoresistive device includes an MR element including a metal layer, and an insulating portion made of magnesium oxide and in contact with the MR element. A method of manufacturing the magnetoresistive device includes the step of removing an unwanted magnesium oxide film that is formed by the magnesium oxide in the process of forming the insulating portion. In this step, the unwanted magnesium oxide film is wet etched by using an etchant containing an aqueous ammonia solution.Type: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: TDK CORPORATIONInventors: Hitoshi HATATE, Atsuyoshi TSUNODA, Makoto FUKUI, Shuji OKAME, Ken FUJII
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Patent number: 7484801Abstract: A detachable child safety seat comprises a base member, a seat body mounted on the base member detachably, an upper locking mechanism to lock or unlock a stand wall of the base member and a backrest of the seat body, a lower locking mechanism to lock or unlock a bottom wall of the base member and a seat of the seat body, and a synchronization mechanism to connect the upper locking mechanism to the lower locking mechanism so as to synchronize locked states or unlocked states of both locking mechanisms.Type: GrantFiled: May 26, 2006Date of Patent: February 3, 2009Assignee: Graco Children's Products Inc.Inventors: Kenzou Kassai, Haruo Kawano, Makoto Fukui
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Publication number: 20060273640Abstract: A detachable child safety seat comprises a base member, a seat body mounted on the base member detachably, an upper locking mechanism to lock or unlock a stand wall of the base member and a backrest of the seat body, a lower locking mechanism to lock or unlock a bottom wall of the base member and a seat of the seat body, and a synchronization mechanism to connect the upper locking mechanism to the lower locking mechanism so as to synchronize locked states or unlocked states of both locking mechanisms.Type: ApplicationFiled: May 26, 2006Publication date: December 7, 2006Applicant: APRICA IKUJIKENKYUKAI APRICA KASSAI KABUSHIKIKAISHAInventors: Kenzou Kassai, Haruo Kawano, Makoto Fukui
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Patent number: 6164500Abstract: For use in a liquid filling apparatus having a liquid channel extending from a liquid tank to a filling nozzle via a metering cylinder, an upper check valve disposed upstream from the metering cylinder and a lower check valve disposed downstream from the cylinder, a method of removing air from the interior of the liquid channel comprises the liquid feeding step of closing the lower check valve, opening the upper check valve and feeding the liquid to be filled from the liquid tank to the liquid channel to an upstream side of the lower check valve; the primary air removing step of closing the upper check valve, opening the lower check valve, and causing the liquid to flow from the upstream side of the lower check valve downstream from the lower check valve while allowing air at a downstream side of the lower check valve to flow in between the valves to replace the liquid at the upstream side of the lower check valve with the air at the downstream side of the lower check valve; and the secondary air removing steType: GrantFiled: October 26, 1999Date of Patent: December 26, 2000Assignee: Shikoku Kakoki Co., Ltd.Inventors: Kazuo Abe, Makoto Fukui, Hiroshi Kitajima, Michio Ueda