Patents by Inventor Kazuhiko Soeda
Kazuhiko Soeda 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: 11031851Abstract: A power transmission device for a vehicle is comprised of a motor including a rotor shaft and a stator having an electromagnetic coil; an inverter configured to generate an alternating current, the inverter being connected with the coil to controllably rotate the rotor shaft relative to the stator; a gear set including an input shaft coupled with and rotated by the rotor shaft, an output shaft and gears so meshed as to transmit torque of the input shaft to the output shaft; and a grounding path electrically connecting a part of the gear set with a body of the vehicle, the part being so disposed as to have the input shaft electrically interposed between the part and the rotor shaft.Type: GrantFiled: December 8, 2016Date of Patent: June 8, 2021Assignee: NISSAN MOTOR CO., LTD.Inventors: Tomohiro Okada, Naoaki Oikawa, Takahiro Saruwatari, Tatsuhiko Ikeda, Ken Nakayama, Kazuhiko Soeda, Akinori Inada
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Publication number: 20170126105Abstract: A power transmission device for a vehicle is comprised of a motor including a rotor shaft and a stator having an electromagnetic coil; an inverter configured to generate an alternating current, the inverter being connected with the coil to controllably rotate the rotor shaft relative to the stator; a gear set including an input shaft coupled with and rotated by the rotor shaft, an output shaft and gears so meshed as to transmit torque of the input shaft to the output shaft; and a grounding path electrically connecting a part of the gear set with a body of the vehicle, the part being so disposed as to have the input shaft electrically interposed between the part and the rotor shaft.Type: ApplicationFiled: December 8, 2016Publication date: May 4, 2017Applicant: NISSAN MOTOR CO., LTD.Inventors: Tomohiro OKADA, Naoaki Oikawa, Takahiro Saruwatari, Tatsuhiko Ikeda, Ken Nakayama, Kazuhiko Soeda, Akinori Inada
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Patent number: 9154021Abstract: A power transmission device for an electrically driven vehicle basically includes a power transmission mechanism, a sliding contact brush, a brush case cover, and a brush protective jig. The power transmission mechanism includes a case element, an axle element and a power transmission element. The sliding contact brush is mounted on an axle end of the axle element. The brush case cover is selectively mounted to the case element to enclose the axle end of the axle element in the case element. The brush protective jig is mounted to cover the brush contact when mounting the sliding contact brush to the axle end. The brush protective jig is dimensioned to contact the brush case cover and to prevent the brush case cover from being mounted to the case element while the brush protective jig is in an attached state that covers the brush contact.Type: GrantFiled: September 30, 2011Date of Patent: October 6, 2015Assignee: Nissan Motor Co., Ltd.Inventors: Kazuhiko Soeda, Seiji Hoshika, Kiyoshi Morikura, Takeshi Kariya
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Publication number: 20130241342Abstract: A power transmission device for an electrically driven vehicle basically includes a power transmission mechanism, a sliding contact brush, a brush case cover, and a brush protective jig. The power transmission mechanism includes a case element, an axle element and a power transmission element. The sliding contact brush is mounted on an axle end of the axle element. The brush case cover is selectively mounted to the case element to enclose the axle end of the axle element in the case element. The brush protective jig is mounted to cover the brush contact when mounting the sliding contact brush to the axle end. The brush protective jig is dimensioned to contact the brush case cover and to prevent the brush case cover from being mounted to the case element while the brush protective jig is in an attached state that covers the brush contact.Type: ApplicationFiled: September 30, 2011Publication date: September 19, 2013Applicant: Nissan Motor Co., Ltd.Inventors: Kazuhiko Soeda, Seiji Hoshika, Kiyoshi Morikura, Takeshi Kariya
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Publication number: 20130057096Abstract: A power transmission device for a vehicle is comprised of a motor including a rotor shaft and a stator having an electromagnetic coil; an inverter configured to generate an alternating current, the inverter being connected with the coil to controllably rotate the rotor shaft relative to the stator; a gear set including an input shaft coupled with and rotated by the rotor shaft, an output shaft and gears so meshed as to transmit torque of the input shaft to the output shaft; and a grounding path electrically connecting a part of the gear set with a body of the vehicle, the part being so disposed as to have the input shaft electrically interposed between the part and the rotor shaft.Type: ApplicationFiled: May 26, 2011Publication date: March 7, 2013Inventors: Tomohiro Okada, Naoaki Oikawa, Takahiro Saruwatari, Tatsuhiko Ikeda, Ken Nakayama, Kazuhiko Soeda, Akinori Inada
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Patent number: 7243565Abstract: A twin-clutch manual transmission including: first and second input shafts provided with respective clutches; a counter shaft parallel to these input shafts; gear sets of an odd-numbered gear range group disposed between the rear end portion of the first input shaft and the counter shaft; gear sets of the even-numbered gear range group disposed between the second input shaft and the counter shaft; an output shaft being concentric with and abutting on a rear end of the first input shaft; and a synchronizer provided between the rear end of the first input shaft and the output shaft to provide a direct-coupling gear range. The odd-numbered gear range group includes the direct-coupling gear range.Type: GrantFiled: March 9, 2005Date of Patent: July 17, 2007Assignee: Nissan Motor Co., Ltd.Inventor: Kazuhiko Soeda
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Publication number: 20050204839Abstract: A twin-clutch manual transmission comprising: first and second input shafts adapted to selectively receive an engine power output through respective clutches; a first gear range group including gear sets which are disposed between a rear end portion of the first input shaft, protruding from a rear end of the second input shaft in an area remote from an engine, and a counter shaft parallel to the first and second input shafts; a second gear range group including gear sets disposed between the second input shaft and the counter shaft; an output shaft placed in a concentric and abutting relationship with a rear end of the first input shaft; and a reduction gear set disposed between the output shaft and the counter shaft to drivably connect the counter shaft to the output shaft.Type: ApplicationFiled: March 9, 2005Publication date: September 22, 2005Inventor: Kazuhiko Soeda
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Publication number: 20050204840Abstract: A twin-clutch manual transmission including: first and second input shafts provided with respective clutches; a counter shaft parallel to these input shafts; gear sets of an odd-numbered gear range group disposed between the rear end portion of the first input shaft and the counter shaft; gear sets of the even-numbered gear range group disposed between the second input shaft and the counter shaft; an output shaft being concentric with and abutting on a rear end of the first input shaft; and a synchronizer provided between the rear end of the first input shaft and the output shaft to provide a direct-coupling gear range. The odd-numbered gear range group includes the direct-coupling gear range.Type: ApplicationFiled: March 9, 2005Publication date: September 22, 2005Inventor: Kazuhiko Soeda
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Patent number: 6888113Abstract: A heating device utilizing electromagnetic induction is provided with an induction heating unit that is opposed to a heating member and causes the heating member to heat through electromagnetic induction. The induction heating unit has an exciting coil for generating a magnetic field and a coil guide member on which the exciting coil is wound. The exciting coil is formed in at least two layers in such a manner that a first layer is formed on a circumferential surface of the coil guide member by winding a plurality of turns and a second layer is formed around and outside the first layer on the side opposite to the coil guide member, and winding of each of the second layer and following layers is started from a position close to a winding start position of the first layer.Type: GrantFiled: January 16, 2004Date of Patent: May 3, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuichi Monda, Eiji Torikai, Kazuhiko Soeda, Tadayuki Kajiwara, Tadafumi Shimizu, Shouichi Kitagawa, Masahiro Samei, Kazunori Matsuo, Keiichi Matsuzaki, Kenji Asakura, Hideki Tatematsu
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Patent number: 6849838Abstract: A short ring is provided outside a support frame. In the short ring, eddy current is generated in such a direction as to cancel apart of a magnetic flux developed from the exciting coil when it is fed with current, which the part of the magnetic flux leaks to outside. When the eddy current is generated, a magnetic field is developed in such a direction as to cancel the magnetic field by the leaking flux, as taught by Fleming's law. The result is that unnecessary radiation by the leaking flux is prevented, and hence noise generation in other members or devices is suppressed.Type: GrantFiled: March 11, 2003Date of Patent: February 1, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadafumi Shimizu, Shouichi Kitagawa, Masahiro Samei, Kazunori Matsuo, Keiichi Matsuzaki, Kenji Asakura, Hideki Tatematsu, Yuichi Monda, Eiji Torikai, Kazuhiko Soeda, Tadayuki Kajiwara
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Publication number: 20040226940Abstract: A heating device utilizing electromagnetic induction is provided with an induction heating unit that is opposed to a heating member and causes the heating member to heat through electromagnetic induction. The induction heating unit has an exciting coil for generating a magnetic field and a coil guide member on which the exciting coil is wound. The exciting coil is formed in at least two layers in such a manner that a first layer is formed on a circumferential surface of the coil guide member by winding a plurality of turns and a second layer is formed around and outside the first layer on the side opposite to the coil guide member, and winding of each of the second layer and following layers is started from a position close to a winding start position of the first layer.Type: ApplicationFiled: January 16, 2004Publication date: November 18, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Yuichi Monda, Eiji Torikai, Kazuhiko Soeda, Tadayuki Kajiwara, Tadafumi Shimizu, Shouichi Kitagawa, Masahiro Samei, Kazunori Matsuo, Keiichi Matsuzaki, Kenji Asakura, Hideki Tatematsu
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Publication number: 20040035856Abstract: A short ring is provided outside a support frame. In the short ring, eddy current is generated in such a direction as to cancel apart of a magnetic flux developed from the exciting coil when it is fed with current, which the part of the magnetic flux leaks to outside. When the eddy current is generated, a magnetic field is developed in such a direction as to cancel the magnetic field by the leaking flux, as taught by Fleming's law. The result is that unnecessary radiation by the leaking flux is prevented, and hence noise generation in other members or devices is suppressed.Type: ApplicationFiled: March 11, 2003Publication date: February 26, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Tadafumi Shimizu, Shouichi Kitagawa, Masahiro Samei, Kazunori Matsuo, Keiichi Matsuzaki, Kenji Asakura, Hideki Tatematsu, Yuichi Monda, Eiji Torikai, Kazuhiko Soeda, Tadayuki Kajiwara
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Patent number: 6285849Abstract: A registering pattern having a predetermined configuration for each color is formed on a transfer material, and color misregistering is detected and corrected by laser beams and a photosensor.Type: GrantFiled: September 9, 1999Date of Patent: September 4, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaya Shimada, Naomi Uchida, Yuhzoh Kawano, Tadayuki Kajiwara, Tomoyuki Noguchi, Kazuhiko Soeda, Akira Sadamoto
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Patent number: 4710022Abstract: A measuring system operated by an optical transmitter; an optical spectrum analyzing part receiving an input optical signal branched from the optical transmitter; an optical receiver for connecting with, via an optical fiber to be measured, the optical transmitter; and a data processing part operative to produce a chromatic dispersion coefficient to be measured, by comparing a calculated baseband characteristic, derived from data concerning the optical transmitter and the optical spectrum analyzing part, with an actual baseband characteristic obtained in the optical receiver.Type: GrantFiled: September 25, 1984Date of Patent: December 1, 1987Assignee: Fujitsu LimitedInventors: Kazuhiko Soeda, Masakazu Mori, Tsutomu Nishikawa, Kiyoshi Tomimori