Patents by Inventor Kyouhei Yamamoto
Kyouhei Yamamoto 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: 11705356Abstract: A mounting table includes a base member, having a rear surface and a front surface facing the rear surface, in which a coolant path is formed, a groove portion having a bottom surface within the base member being annularly formed on the front surface, the base member being divided into a cylindrical inner base member portion positioned at an inner side of the groove portion and an annular outer base member portion positioned at an outer side of the groove portion by the groove portion; an annular focus ring supported by the outer base member portion, the annular focus ring having, at an inner side surface thereof, a protrusion that is protruded radially and inwardly to cover the groove portion; a first heat transfer member provided between the mounting surface and the coolant path; and the second heat transfer member provided between the focus ring and the coolant path.Type: GrantFiled: July 10, 2020Date of Patent: July 18, 2023Assignee: TOKYO ELECTRON LIMITEDInventors: Kyouhei Yamamoto, Taira Takase
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Publication number: 20200343122Abstract: A mounting table includes a base member, having a rear surface and a front surface facing the rear surface, in which a coolant path is formed, a groove portion having a bottom surface within the base member being annularly formed on the front surface, the base member being divided into a cylindrical inner base member portion positioned at an inner side of the groove portion and an annular outer base member portion positioned at an outer side of the groove portion by the groove portion; an annular focus ring supported by the outer base member portion, the annular focus ring having, at an inner side surface thereof, a protrusion that is protruded radially and inwardly to cover the groove portion; a first heat transfer member provided between the mounting surface and the coolant path; and the second heat transfer member provided between the focus ring and the coolant path.Type: ApplicationFiled: July 10, 2020Publication date: October 29, 2020Inventors: Kyouhei Yamamoto, Taira Takase
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Patent number: 10727101Abstract: A mounting table includes a base member, having a rear surface and a front surface facing the rear surface, in which a coolant path is formed, a groove portion having a bottom surface within the base member being annularly formed on the front surface, the base member being divided into a cylindrical inner base member portion positioned at an inner side of the groove portion and an annular outer base member portion positioned at an outer side of the groove portion by the groove portion; an annular focus ring supported by the outer base member portion, the annular focus ring having, at an inner side surface thereof, a protrusion that is protruded radially and inwardly to cover the groove portion; a first heat transfer member provided between the mounting surface and the coolant path; and a second heat transfer member provided between the focus ring and the coolant path.Type: GrantFiled: January 28, 2014Date of Patent: July 28, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Kyouhei Yamamoto, Taira Takase
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Publication number: 20140209245Abstract: A mounting table includes a base member, having a rear surface and a front surface facing the rear surface, in which a coolant path is formed, a groove portion having a bottom surface within the base member being annularly formed on the front surface, the base member being divided into a cylindrical inner base member portion positioned at an inner side of the groove portion and an annular outer base member portion positioned at an outer side of the groove portion by the groove portion; an annular focus ring supported by the outer base member portion, the annular focus ring having, at an inner side surface thereof, a protrusion that is protruded radially and inwardly to cover the groove portion; a first heat transfer member provided between the mounting surface and the coolant path; and a second heat transfer member provided between the focus ring and the coolant path.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: Tokyo Electron LimitedInventors: Kyouhei YAMAMOTO, Taira TAKASE
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Patent number: 7856702Abstract: A method for manufacturing an armature including securing a core to the shaft having a plurality of slots extending in the axial direction formed on the outer circumferential surface thereof, forming a coil composed of a plurality of coil portions by simultaneously winding wires a plurality of turns around a pair of slots separated by a predetermined number of slots and offsetting each of the coil portions one slot at a time in the circumferential direction of the core, securing a commutator to the shaft having a plurality of segments, adjacent coil portions having a slot along one side thereof, wherein a number of vacant slots between adjacent ones of the coil portions within each of simultaneously-wound coil portion groups is nonuniform, and electronically connecting segments which should have the same electric potential by means of equalizing connectors so that each of pairs of the coil portions that should have the same electric potential has a substantially equal electric potential.Type: GrantFiled: July 10, 2006Date of Patent: December 28, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshinori Tanaka, Kyouhei Yamamoto, Akihiro Daikoku, Akihiko Imagi, Yoshio Yoshikuwa, Mitsuyuki Tsumura
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Patent number: 7675206Abstract: A rotating electric machine which includes: a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core; a bracket fixed to an opening side of the frame; a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing and by a frame side bearing, the rotor being arranged inside the stator core interposing a gap therebetween; a respective phase lead wire electrically connected to the stator winding and led out from the bracket; a rotation sensor that detects a rotational position of the rotor; and a sensor signal wire connected to the rotation sensor and led out from the bracket. A front end portion of the respective phase lead wire is introduced to inside the bracket from outside an opening portion provided at the bracket, thereby electrically connecting to the stator winding.Type: GrantFiled: July 11, 2006Date of Patent: March 9, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Satoru Akutsu, Kyouhei Yamamoto, Shinsuke Hemmi
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Patent number: 7495365Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.Type: GrantFiled: August 7, 2003Date of Patent: February 24, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshihito Asao, Kyouhei Yamamoto
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Patent number: 7442013Abstract: An electro-hydraulic power steering apparatus in which a control device, a motor and a pump are integrated. The apparatus includes a first housing, a second housing, a control device surrounded by the first and second housings, a motor disposed on a side of the first housing and a pump disposed on a side of the second housing. The motor includes a rotor, a stator and a frame. The rotor has a first bearing supported by the first housing. The frame includes an inner circumferential face into which a stator core is press fitted and receives a second bearing of the rotor. The frame is secured to the first housing by a first clamp screw. The first housing and the second housing are secured by a second clamp screw. The first and second clamp screws are tightened from the hand of the frame.Type: GrantFiled: March 2, 2004Date of Patent: October 28, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshinori Tanaka, Kiyohide Okamoto, Yuusuke Matsui, Kyouhei Yamamoto, Shuji Isono, Hideki Megata, Keiichi Fukazawa, Katsumi Ohata, Kengo Fujimoto
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Patent number: 7414346Abstract: Terminal plates are located in a brush holder base, a spring and a brush are located in the brush holder base, and the terminal plates are connected to pigtails in an area within 90° in a backside of an introducing portion of the pigtails in the brush, whereby operating noise and ripples of torque of a dynamo-electric machine are reduced.Type: GrantFiled: October 26, 2000Date of Patent: August 19, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shinsuke Henmi, Kyouhei Yamamoto, Toshinori Tanaka
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Patent number: 7340821Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.Type: GrantFiled: January 21, 2005Date of Patent: March 11, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshihito Asao, Kyouhei Yamamoto
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Patent number: 7342343Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.Type: GrantFiled: October 28, 2005Date of Patent: March 11, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshihito Asao, Kyouhei Yamamoto
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Publication number: 20070245543Abstract: A rotary electric machine is provided in which the press-fit load of a stator magnetic pole to a frame is stabilized, thus stabilizing the performance of the rotary electric machine, and that has high anti-corrosiveness and anti-rusty sealing property and is inexpensive. Particularly a rotary electric machine suitable for a motor for motor power steering apparatus is provided. In a rotary electric machine having a stator magnetic pole press-fitted and fixed on an inner circumferential surface of a cylindrical frame made of a steel plate and having a rotor arranged via a gap to an inner circumferential side of the stator magnetic pole, the frame is formed by pressing a surface-treated steel plate having a plating layer of aluminum, magnesium, silicon, and zinc for the remaining part formed on a surface of the steel plate, into a cylindrical shape.Type: ApplicationFiled: June 25, 2007Publication date: October 25, 2007Inventors: Toshinori Tanaka, Keiichi Fukazawa, Kyouhei Yamamoto, Yoshitaka Masuda, Kengo Fujimoto, Hirokazu Sakuda, Masayasu Miyajima, Yuusuke Matsui
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Patent number: 7217106Abstract: An electro-hydraulic power steering apparatus includes: a motor having a rotational shaft and provided with a bearing for rotatably bearing the rotational shaft; a hydraulic pump disposed at one end of the rotational shaft of the motor and driven by the motor; a first elastic body for supporting the bearing; and a second elastic body for pressing the bearing in an axial direction.Type: GrantFiled: December 24, 2003Date of Patent: May 15, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshinori Tanaka, Keiichi Fukazawa, Yuusuke Matsui, Kyouhei Yamamoto, Katsumi Ohata, Kengo Fujimoto
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Publication number: 20070063596Abstract: A rotating electric machine which includes: a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core; a bracket fixed to an opening side of the frame; a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing and by a frame side bearing, the rotor being arranged inside the stator core interposing a gap therebetween; a respective phase lead wire electrically connected to the stator winding and led out from the bracket; a rotation sensor that detects a rotational position of the rotor; and a sensor signal wire connected to the rotation sensor and led out from the bracket. A front end portion of the respective phase lead wire is introduced to inside the bracket from outside an opening portion provided at the bracket, thereby electrically connecting to the stator winding.Type: ApplicationFiled: July 11, 2006Publication date: March 22, 2007Inventors: Satoru Akutsu, Kyouhei Yamamoto, Shinsuke Hemmi
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Publication number: 20060248707Abstract: A method for manufacturing an armature including securing a core to the shaft having a plurality of slots extending in the axial direction formed on the outer circumferential surface thereof, forming a coil composed of a plurality of coil portions by simultaneously winding wires a plurality of turns around a pair of slots separated by a predetermined number of slots and offsetting each of the coil portions one slot at a time in the circumferential direction of the core, securing a commutator to the shaft having a plurality of segments, adjacent coil portions having a slot along one side thereof, and electronically connecting segments which should have the same electric potential by means of equalizing connectors so that each pairs of the segments that should have the same electric potential has a substantially equal electric potential.Type: ApplicationFiled: July 10, 2006Publication date: November 9, 2006Inventors: Toshinori Tanaka, Kyouhei Yamamoto, Akihiro Daikoku, Akihiko Imagi, Yoshio Yoshikuwa, Mitsuyuki Tsumura
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Patent number: 7114236Abstract: A method for manufacturing an armature including securing a core to the shaft having a plurality of slots extending in the axial direction formed on the outer circumferential surface thereof, forming a coil composed of a plurality of coil portions by simultaneously winding wires a plurality of turns around a pair of slots separated by a predetermined number of slots and offsetting each of the coil portions one slot at a time in the circumferential direction of the core, securing a commutator to the shaft having a plurality of segments, adjacent coil portions having a slot along one side thereof, and electrically connecting segments which should have the same electric potential by means of equalizing connectors so that each pairs of the segments that should have the same electric potential has a substantially equal electrical potential.Type: GrantFiled: April 29, 2004Date of Patent: October 3, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshinori Tanaka, Kyouhei Yamamoto, Akihiro Daikoku, Akihiko Imagi, Yoshio Yoshikuwa, Mitsuyuki Tsumura
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Publication number: 20060087183Abstract: A rotary electric machine is provided in which the press-fit load of a stator magnetic pole to a frame is stabilized, thus stabilizing the performance of the rotary electric machine, and that has high anti-corrosiveness and anti-rusty sealing property and is inexpensive. Particularly a rotary electric machine suitable for a motor for motor power steering apparatus is provided. In a rotary electric machine having a stator magnetic pole press-fitted and fixed on an inner circumferential surface of a cylindrical frame made of a steel plate and having a rotor arranged via a gap to an inner circumferential side of the stator magnetic pole, the frame is formed by pressing a surface-treated steel plate having a plating layer of aluminum, magnesium, silicon, and zinc for the remaining part formed on a surface of the steel plate, into a cylindrical shape.Type: ApplicationFiled: April 4, 2005Publication date: April 27, 2006Inventors: Toshinori Tanaka, Keiichi Fukazawa, Kyouhei Yamamoto, Yoshitaka Masuda, Kengo Fujimoto, Hirokazu Sakuda, Masayasu Miyajima, Yuusuke Matsui
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Publication number: 20060033397Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.Type: ApplicationFiled: October 28, 2005Publication date: February 16, 2006Inventors: Yoshihito Asao, Kyouhei Yamamoto
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Patent number: 6952067Abstract: A surface of a commutator 5 is rubbed by a shakedown brush 21 other than ordinary brushes 11 to produce a carbon coat, whereby a shakedown process can be reduced or abolished.Type: GrantFiled: March 7, 2002Date of Patent: October 4, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshinori Tanaka, Hisato Sakaguchi, Kyouhei Yamamoto
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Publication number: 20050172477Abstract: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot.Type: ApplicationFiled: January 21, 2005Publication date: August 11, 2005Inventors: Yoshihito Asao, Kyouhei Yamamoto