Patents by Inventor Yuichi Sakamoto
Yuichi Sakamoto 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: 20240132049Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Applicant: DENSO CORPORATIONInventors: Syuya KAMIZONO, Akira Sakamoto, Yuichi Handa, Masaki Amakawa, Keisuke Kawai
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Publication number: 20240120805Abstract: A rotating electrical machine includes a stator equipped with a stator winding, a rotor arranged to face the stator, a housing in which the stator and the rotor are disposed, and a coolant supply unit. The coolant supply unit is located vertically above the stator and the rotor in the housing in a condition where the rotating electrical machine is mounted in place. The coolant supply unit works to deliver liquid coolant into the housing. A coolant guide is provided to direct the coolant, as supplied from the coolant supply unit, into an air gap between the stator and the rotor in the housing.Type: ApplicationFiled: December 20, 2023Publication date: April 11, 2024Applicant: DENSO CORPORATIONInventors: Masaki AMAKAWA, Yuichi HANDA, Keisuke KAWAI, Syuya KAMIZONO, Akira SAKAMOTO
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Patent number: 11939217Abstract: According to one embodiment, a magnesium-recycling hydrogen generation system includes: a by-product acquisition unit that separates a by-product from a post-reaction solution, which is a solution after reacting with a hydrogen generation material containing a hydrogen-containing magnesium compound that generates hydrogen via a reaction with the solution, to acquire the by-product including more than one type of oxygen-containing magnesium compound that contains oxygen produced by the reaction, a raw material production unit that reacts the by-product with a halogen-containing substance containing halogen and other atoms than the halogen to produce a raw material containing magnesium halide, a hydrogen generation material production unit that reduces the raw material with plasma containing hydrogen to produce the hydrogen generation material, and a hydrogen generator that reacts the hydrogen generation material with the solution to generate hydrogen.Type: GrantFiled: January 15, 2021Date of Patent: March 26, 2024Assignee: SE CORPORATIONInventors: Tsutomu Takizawa, Toshihiro Oishi, Yoshiharu Sawaki, Mineo Morimoto, Yuichi Sakamoto
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Patent number: 11763793Abstract: A reference microphone for detecting noise is located under a first duct. The noise is in the form of a first plane wave in the first duct. A speaker is located on a top of the first duct. Connected to an upper part of the first duct is a second duct including an error microphone. The first plane wave in the first duct passes through an acoustic path and reaches the second duct. The error microphone detects the sound, and the speaker outputs a second plane wave with an opposite phase for canceling the first plane wave.Type: GrantFiled: September 29, 2020Date of Patent: September 19, 2023Assignee: Foster Electric Company, LimitedInventors: Yuichi Sakamoto, Mitsuharu Watanabe
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Patent number: 11643704Abstract: One object of the present disclosure is to provide a production method of magnesium hydride that is free of carbon dioxide and has high production efficiency, a power generation system that does not emit carbon dioxide or radiation using magnesium hydride, and an apparatus for producing magnesium hydride; therefore, the method for producing magnesium hydride of the present disclosure comprises a procedure for irradiating a magnesium compound different from magnesium hydride with hydrogen plasma, and a procedure for depositing a magnesium product containing magnesium hydride on a depositor for depositing magnesium hydride disposed within the range in which hydrogen plasma is present, wherein the surface temperature of the depositor is kept no more than a predetermined temperature at which magnesium hydride precipitates.Type: GrantFiled: April 12, 2018Date of Patent: May 9, 2023Assignee: SE CORPORATIONInventors: Tsutomu Takizawa, Mineo Morimoto, Yuichi Sakamoto
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Publication number: 20220415302Abstract: A reference microphone for detecting noise is located under a first duct. The noise is in the form of a first plane wave in the first duct. A speaker is located on a top of the first duct. Connected to an upper part of the first duct is a second duct including an error microphone. The first plane wave in the first duct passes through an acoustic path and reaches the second duct. The error microphone detects the sound, and the speaker outputs a second plane wave with an opposite phase for canceling the first plane wave.Type: ApplicationFiled: September 29, 2020Publication date: December 29, 2022Applicant: Foster Electric Company, LimitedInventors: Yuichi Sakamoto, Mitsuharu Watanabe
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Publication number: 20210139324Abstract: According to one embodiment, a magnesium-recycling hydrogen generation system includes: a by-product acquisition unit that separates a by-product from a post-reaction solution, which is a solution after reacting with a hydrogen generation material containing a hydrogen-containing magnesium compound that generates hydrogen via a reaction with the solution, to acquire the by-product including more than one type of oxygen-containing magnesium compound that contains oxygen produced by the reaction, a raw material production unit that reacts the by-product with a halogen-containing substance containing halogen and other atoms than the halogen to produce a raw material containing magnesium halide, a hydrogen generation material production unit that reduces the raw material with plasma containing hydrogen to produce the hydrogen generation material, and a hydrogen generator that reacts the hydrogen generation material with the solution to generate hydrogen.Type: ApplicationFiled: January 15, 2021Publication date: May 13, 2021Inventors: Tsutomu TAKIZAWA, Toshihiro OISHI, Yoshiharu SAWAKI, Mineo MORIMOTO, Yuichi SAKAMOTO
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Publication number: 20200263274Abstract: One object of the present disclosure is to provide a production method of magnesium hydride that is free of carbon dioxide and has high production efficiency, a power generation system that does not emit carbon dioxide or radiation using magnesium hydride, and an apparatus for producing magnesium hydride; therefore, the method for producing magnesium hydride of the present disclosure comprises a procedure for irradiating a magnesium compound different from magnesium hydride with hydrogen plasma, and a procedure for depositing a magnesium product containing magnesium hydride on a depositor for depositing magnesium hydride disposed within the range in which hydrogen plasma is present, wherein the surface temperature of the depositor is kept no more than a predetermined temperature at which magnesium hydride precipitates.Type: ApplicationFiled: April 12, 2018Publication date: August 20, 2020Inventors: Tsutomu TAKIZAWA, Mineo MORIMOTO, Yuichi SAKAMOTO
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Patent number: 9791869Abstract: A control unit is added to the environmental tester including a thermostat-humidistat container, an air conditioner, a first temperature and humidity sensor for measuring temperature and humidity in the thermostat-humidistat container, a controller for receiving a first signal from the first temperature and humidity sensor to control the air conditioner. The control unit includes a second temperature and humidity sensor configured to measure the temperature and humidity distribution in the thermostat-humidistat container, and an additional unit configured to receive the first signal and set values for the temperature and the humidity from the controller, and receive a second signal from the second temperature and humidity sensor, compute a correction value from the received first signal, second signal, and set values, and send the correction value to the controller.Type: GrantFiled: July 30, 2014Date of Patent: October 17, 2017Assignee: NAGANO SCIENCE CO., LTD.Inventors: Yuichiro Kobayashi, Yuichi Sakamoto
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Publication number: 20140339317Abstract: A control unit is added to the environmental tester including a thermostat-humidistat container, an air conditioner, a first temperature and humidity sensor for measuring temperature and humidity in the thermostat-humidistat container, a controller for receiving a first signal from the first temperature and humidity sensor to control the air conditioner. The control unit includes a second temperature and humidity sensor configured to measure the temperature and humidity distribution in the thermostat-humidistat container, and an additional unit configured to receive the first signal and set values for the temperature and the humidity from the controller, and receive a second signal from the second temperature and humidity sensor, compute a correction value from the received first signal, second signal, and set values, and send the correction value to the controller.Type: ApplicationFiled: July 30, 2014Publication date: November 20, 2014Inventors: Yuichiro KOBAYASHI, Yuichi SAKAMOTO
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Publication number: 20080197016Abstract: The present invention aims to provide a ZnO thin film deposited substrate and a thin film deposition system exhibiting a specific resistance sufficiently reduced to be useful for transparent electrodes of a liquid crystal display, characterized in that Zn material evaporated and oxidized by microwave oxygen plasma to the compound ZnO which is, in turn, deposited on the substrate and thereby the thin film is formed, and the ZnO thin film deposited on the substrate is exposed to microwave hydrogen plasma so as to reduce a specific resistance of the ZnO thin film and thereby to modify this ZnO thin film to electrically conductive thin film.Type: ApplicationFiled: February 20, 2007Publication date: August 21, 2008Applicant: MIKURO DENSHI CORPORATION LIMITEDInventors: Tsutomu TAKIZAWA, Takamichi NAKAYAMA, Kunihiro KASHIWAGI, Yuichi SAKAMOTO
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Patent number: 7324834Abstract: A speaker system functioning as a stand capable of power supply to a mobile phone and hand-free communication and being capable of derived surround reproduction or stereo reproduction is provided. An enclosure (201), on which a mobile phone is placed, includes therein supply means (209) for supplying electric power to the mobile phone, communication means (213) for enabling hand-free communication by the mobile phone through a microphone (211), processing means for introducing signals from the mobile phone and performing a predetermined processing, and a pair of speakers (215, 215?) provided on both sides of the enclosure in a state in which back sides thereof are substantially face to each other for generating sounds based on output signals from the processing means.Type: GrantFiled: August 15, 2005Date of Patent: January 29, 2008Assignee: Foster Electric Co., Ltd.Inventors: Takuro Yamaguchi, Yoshio Koike, Hideo Koreeda, Yuichi Sakamoto
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Publication number: 20060183507Abstract: A speaker system functioning as a stand capable of power supply to a mobile phone and hand-free communication and being capable of derived surround reproduction or stereo reproduction is provided. An enclosure (201), on which a mobile phone is placed, includes therein supply means (209) for supplying electric power to the mobile phone, communication means (213) for enabling hand-free communication by the mobile phone through a microphone (211), processing means for introducing signals from the mobile phone and performing a predetermined processing, and a pair of speakers (215, 215?) provided on both sides of the enclosure in a state in which back sides thereof are substantially face to each other for generating sounds based on output signals from the processing means.Type: ApplicationFiled: August 15, 2005Publication date: August 17, 2006Inventors: Takuro Yamaguchi, Yoshio Koike, Hideo Koreeda, Yuichi Sakamoto
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Publication number: 20060092810Abstract: An optical disk device records data on an optical disk in which a recording layer which is at an upper position with respect to a side from which a light beam is irradiated, and a recording layer which is at a lower position, are formed in multiple layers. After replay data is recorded in a data zone of the upper recording layer and in a data zone of the lower recording layer, standard data is recorded in a middle zone of the lower recording layer from a radially outer position of the disk to a radially inner position of the disk. After recording in the middle zone of the lower recording layer, standard data is recorded in the middle zone of the upper recording layer from a radially inner position of the disk to a radially outer position of the disk.Type: ApplicationFiled: October 27, 2005Publication date: May 4, 2006Inventor: Yuichi Sakamoto
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Publication number: 20050085276Abstract: A speaker system functioning as a stand capable of power supply to a mobile phone and hand-free communication and being capable of derived surround reproduction or stereo reproduction is provided. An enclosure (201), on which a mobile phone is placed, includes therein supply means (209) for supplying electric power to the mobile phone, communication means (213) for enabling hand-free communication by the mobile phone through a microphone (211), processing means for introducing signals from the mobile phone and performing a predetermined processing, and a pair of speakers (215, 215?) provided on both sides of the enclosure in a state in which back sides thereof are substantially face to each other for generating sounds based on output signals from the processing means.Type: ApplicationFiled: March 20, 2002Publication date: April 21, 2005Inventors: Takuro Yamaguchi, Yoshio Koike, Hideo Koreeda, Yuichi Sakamoto
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Patent number: 6827347Abstract: A paper sheet processing device that accommodates various types of paper sheet performs a smooth accommodating action by accurately performing a full-state detection action in respect of the accommodated paper sheets. Full-state detecting unit 2 of the paper sheet container (paper money container) stores current values exceeding a reference value as detection signals a, b, c and, of the stored detection signals a, b, c, determines that the stacker 42 constituting a paper sheet accommodating section is full based on the detection signal c stored in the substantially latter half period K′ of the paper sheet accommodating action period T′ by the paper money guiding unit 43.Type: GrantFiled: December 4, 2002Date of Patent: December 7, 2004Assignee: Kabushiki Kaisha Nippon ConluxInventors: Yukio Ito, Yuichi Sakamoto, Tadahiro Iwai, Tetsuro Kikuchi
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Patent number: 6721248Abstract: An optical disk unit for recording information on and reproducing information from a disk recording medium by projecting a light beam thereonto includes a signal level detection part detecting a level of a track error signal generated based on reflected light of the light beam from the disk recording medium, a scattered light detection part detecting scattering of the reflected light, and an off-track detection part which detects an off-track of the light beam using detection signals supplied from the signal level detection part and scattered light detection part.Type: GrantFiled: May 29, 2001Date of Patent: April 13, 2004Assignee: Teac CorporationInventors: Mitsumasa Kubo, Tadao Yamanouchi, Yuichi Sakamoto, Yoshiyuki Ootsuka
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Patent number: 6717368Abstract: Here is disclosed a plasma generator using microwave wherein a plasma generating chamber is provided with a plurality of wave guide tubes extending in parallel one to another at regular intervals, each of the wave guide tubes being formed with a plurality of coupling ports arranged intermittently in an axial direction of the wave guide tube and dimensioned so that coupling coefficient thereof become gradually higher toward a distal end of the wave guide tube, and a plurality of dielectric windows provided through the plasma generating chamber in association with the respective coupling ports so that microwave electric power radiated through the coupling ports into the plasma generating chamber may be uniformized and thereby plasma of a large area may be generated with high and uniform density.Type: GrantFiled: September 12, 2002Date of Patent: April 6, 2004Assignee: Mikuro Denshi Corporation LimitedInventors: Yuichi Sakamoto, Kazuaki Senda
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Publication number: 20040051463Abstract: Here is disclosed a plasma generator using microwave wherein a plasma generating chamber is provided with a plurality of wave guide tubes extending in parallel one to another at regular intervals, each of the wave guide tubes being formed with a plurality of coupling ports arranged intermittently in an axial direction of the wave guide tube and dimensioned so that coupling coefficient thereof become gradually higher toward a distal end of the wave guide tube, and a plurality of dielectric windows provided through the plasma generating chamber in association with the respective coupling ports so that microwave electric power radiated through the coupling ports into the plasma generating chamber may be uniformized and thereby plasma of a large area may be generated with high and uniform density.Type: ApplicationFiled: September 12, 2002Publication date: March 18, 2004Applicant: MIKURO DENSHI CORPORATION LIMITEDInventors: Yuichi Sakamoto, Kazuaki Senda
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Publication number: 20030137096Abstract: A paper sheet processing device that accommodates various types of paper sheet performs a smooth accommodating action by accurately performing a full-state detection action in respect of the accommodated paper sheets. Full-state detecting unit 2 of the paper sheet container (paper money container) stores current values exceeding a reference value as detection signals a, b, c and, of the stored detection signals a, b, c, determines that the stacker 42 constituting a paper sheet accommodating section is full based on the detection signal c stored in the substantially latter half period K′ of the paper sheet accommodating action period T′ by the paper money guiding unit 43.Type: ApplicationFiled: December 4, 2002Publication date: July 24, 2003Inventors: Yukio Ito, Yuichi Sakamoto, Tadahiro Iwai, Tetsuro Kikuchi