Patents by Inventor Masahiro Seguchi

Masahiro Seguchi 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).

  • Patent number: 7135793
    Abstract: A stator coil includes a coil portion wound around a stator core and a terminal board serving as a bus bar array board. The coil portion is arranged by sequentially connected segment conductors. The terminal board is a molded ring plate member disposed adjacently to a head coil end of the coil portion in the axial direction and elongated in the radial direction. The turn number of the stator coil is easily adjustable by selecting an optimum one of a plurality of terminal boards.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: November 14, 2006
    Assignee: Denso Corporation
    Inventors: Masahiro Seguchi, Shinji Kouda
  • Patent number: 7091645
    Abstract: A concentrated-winding type stator coil unit for a rotary electric machine is provided with a stator core having a core back and teeth protruding from the core back. Plural coils are wound around the teeth respectively. Each coil is composed of, for example, a first layered coil formed by winding a coil wire in a layer around each tooth to form plural turns arranged in parallel on each tooth and a second layered coil formed by winding the coil wire in a layer to from plural turns around the first layered coil wound around each tooth. The last turn of the first layered coil continues to the first turn of the second layered coil. Both ends of the coil wire are located at and on a base potion of each of the teeth as a winding-start end and a winding-finish end of each of the coils.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 15, 2006
    Assignee: Denso Corporation
    Inventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
  • Publication number: 20060103255
    Abstract: In a stator coil of a rotary electric machine, a first crank portion radially shifts one side of a turn portion from the other side thereof by a first length. The one side extends to one of paired straight portions, and the other side extends to the other thereof. A second crank portion radially shifts one side of a turn portion from the other side thereof by a second length. The one side extends to one of the paired straight portions, and the other side extends to the other thereof. The first length is equivalent to a radial width of the turn portion of the first segment of each set. The second length allows the second crank portion of the second segment of each of the sets to substantially overlay the first crank portion of the first segment of each set.
    Type: Application
    Filed: November 18, 2005
    Publication date: May 18, 2006
    Applicant: DENSO CORPORATION
    Inventors: Masahiro Seguchi, Shinji Kouda, Tetsuya Gorohata
  • Publication number: 20060070840
    Abstract: A sheet handling apparatus is proposed to be able to stably shift a position of a sheet.
    Type: Application
    Filed: September 12, 2005
    Publication date: April 6, 2006
    Inventors: Shunsuke Hayashi, Masahiro Seguchi, Masayasu Ueno, Hidetoshi Hata, Hisanori Takemura, Junji Nishiwaki
  • Patent number: 6998757
    Abstract: A compact and reliable structure of a multi-rotor synchronous machine which may be employed as a generator/motor for automotive vehicles is provided. The machine includes an outer rotor having permanent magnets, an inner rotor having permanent magnets disposed to be rotatable relative to the outer rotor, a stator core having armature coils interlinking with field magnetic fluxes produced by the outer and inner rotors, and a rotor-to-rotor relative rotation controlling mechanism. A relative angle between the outer and inner rotors is controlled within a given angular range by controlling the phase and quantity of current flowing through the armature coils to rotate the inner rotor relative to the outer rotor through the rotor-to-rotor relative rotation controlling mechanism, thereby changing the magnetic fluxes interlinking with the armature coils as needed.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: February 14, 2006
    Assignee: Denso Corporation
    Inventors: Masahiro Seguchi, Shigenori Yoneda
  • Patent number: 6995492
    Abstract: Three partial coils are accommodated in inphase slots arranged successively in the circumferential direction and also accommodated in the same conductor accommodation position set. Each layer coil is constituted by serially connecting these partial coils. Respective layer coils are connected in parallel to each other to form a phase winding.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: February 7, 2006
    Assignee: Denso Corporation
    Inventors: Shinji Kouda, Masahiro Seguchi
  • Publication number: 20060006757
    Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.
    Type: Application
    Filed: September 13, 2005
    Publication date: January 12, 2006
    Applicant: Denso Corporation
    Inventor: Masahiro Seguchi
  • Patent number: 6969938
    Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: November 29, 2005
    Assignee: Denso Corporation
    Inventor: Masahiro Seguchi
  • Publication number: 20050258703
    Abstract: A phase winding of a stator winding comprises one or more pairs of interconnected partial coil, each partial coil formed of sequentially connected U-shaped segment pairs, each pair comprising a large segment and small segment. Two segment legs, of the large and small segment respectively of such a pair, constitute first and second conductor layers of a first stator slot and have their tip portions mutually connected. The remaining two segment legs respectively constitute fourth and third conductor layers of a second slot that is distant by one pole pitch, and have their respective tip portions mutually connected.
    Type: Application
    Filed: May 24, 2005
    Publication date: November 24, 2005
    Applicant: Denso Corporation
    Inventors: Shinji Kouda, Masahiro Seguchi
  • Publication number: 20050253466
    Abstract: A stator coil includes a coil portion wound around a stator core and a terminal board serving as a bus bar array board. The coil portion is arranged by sequentially connected segment conductors. The terminal board is a molded ring plate member disposed adjacently to a head coil end of the coil portion in the axial direction and elongated in the radial direction. The turn number of the stator coil is easily adjustable by selecting an optimum one of a plurality of terminal boards.
    Type: Application
    Filed: May 11, 2005
    Publication date: November 17, 2005
    Applicant: DENSO CORPORATION.
    Inventors: Masahiro Seguchi, Shinji Kouda
  • Patent number: 6960861
    Abstract: A yoke includes a plurality of recessed portions. A teeth block includes a plurality of protruding portions being coupled or fitted into the recessed portions of the yoke. The recessed portions and the protruding portions are disposed as a plurality of pairs in the lamination direction. The protruding portions and the yoke are fixed with a teeth fixing pin.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 1, 2005
    Assignee: Denso Corporation
    Inventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
  • Publication number: 20040256941
    Abstract: A concentrated-winding type stator coil unit for a rotary electric machine is provided with a stator core having a core back and teeth protruding from the core back. Plural coils are wound around the teeth respectively. Each coil is composed of, for example, a first layered coil formed by winding a coil wire in a layer around each tooth to form plural turns arranged in parallel on each tooth and a second layered coil formed by winding the coil wire in a layer to from plural turns around the first layered coil wound around each tooth. The last turn of the first layered coil continues to the first turn of the second layered coil. Both ends of the coil wire are located at and on a base potion of each of the teeth as a winding-start end and a winding-finish end of each of the coils.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 23, 2004
    Applicant: DENSO CORPORATION
    Inventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
  • Patent number: 6833648
    Abstract: A sequentially joined-segment coil for a rotary electric machine such an electric motor is provided. The coil has an end portion which is made up of heads of conductor segments and projects from an end of a core. The heads of conductor segments have turns or bulges. The bulges are lapped over one another in various forms or shifted in location in an axis direction of the core, thereby permitting the core to be decreased in diameter, which provides for decreases in size and weight of the rotary electrical machine.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: December 21, 2004
    Assignee: Denso Corporation
    Inventors: Tetsuya Gorohata, Shinji Kouda, Masahiro Seguchi, Kanehisa Urano, Hitoshi Hirano, Youichi Kamakura
  • Patent number: 6825589
    Abstract: Provided is a multi-turn sequential segment joining stator coil capable of suppressing the differences in electromotive voltage between parallel circuits and of carrying a large current. Partial coils are accommodated in a plurality of continuous conductor accommodation positions of different slots. The partial coils accommodated in the same slot are separately connected in series to each other to produce parallel coils, and the produced parallel coils are connected in parallel with each other. This configuration enables the production of a sequential segment joining stator coil type electric rotating machine with a size-reduced head-side coil end.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: November 30, 2004
    Assignee: Denso Corporation
    Inventors: Shinji Kouda, Masahiro Seguchi
  • Publication number: 20040232800
    Abstract: A compact and reliable structure of a multi-rotor synchronous machine which may be employed as a generator/motor for automotive vehicles is provided. The machine includes an outer rotor having permanent magnets, an inner rotor having permanent magnets disposed to be rotatable relative to the outer rotor, a stator core having armature coils interlinking with field magnetic fluxes produced by the outer and inner rotors, and a rotor-to-rotor relative rotation controlling mechanism. A relative angle between the outer and inner rotors is controlled within a given angular range by controlling the phase and quantity of current flowing through the armature coils to rotate the inner rotor relative to the outer rotor through the rotor-to-rotor relative rotation controlling mechanism, thereby changing the magnetic fluxes interlinking with the armature coils as needed.
    Type: Application
    Filed: May 20, 2004
    Publication date: November 25, 2004
    Inventors: Masahiro Seguchi, Shigenori Yoneda, Yuichi Imani
  • Patent number: 6798104
    Abstract: A rotary electric machine includes a stator core having a plurality of slots disposed at an inner periphery, an armature winding disposed in the slots and a rotor disposed inside the inner periphery of the stator. The rotor includes a first rotor portion and a second rotor portion, which are disposed magnetically in parallel with each other. The first rotor portion has a plurality of permanent-magnet poles, and a second rotor portion has a plurality of salient induction poles.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: September 28, 2004
    Assignee: Denso Corporation
    Inventors: Hiroaki Kajiura, Masahiro Seguchi
  • Publication number: 20040164637
    Abstract: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a stator core and an outside-slot conductor portion protruding from the slot. Of the plurality of partial coils constituting each of the phase coils, in each of the partial coils to be connected to an input/output terminal, its inside-slot conductor portion is accommodated in the slot other than end portions of the phase slot group in a circumferential direction of the stator core. This reduces the electric potential difference between the outside-slot conductor portion continuing thereinto and the outside-slot conductor portion of an adjacent phase coil, thereby improving the insulating performance.
    Type: Application
    Filed: September 17, 2003
    Publication date: August 26, 2004
    Applicant: DENSO CORPORATION
    Inventor: Masahiro Seguchi
  • Patent number: 6774528
    Abstract: Three partial coils are accommodated in inphase slots arranged successively in the circumferential direction and also accommodated in the same conductor accommodation position set. Each layer coil is constituted by serially connecting these partial coils. Respective layer coils are connected in parallel to each other to form a phase winding.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: August 10, 2004
    Assignee: Denso Corporation
    Inventors: Shinji Kouda, Masahiro Seguchi
  • Publication number: 20040104638
    Abstract: A yoke includes a plurality of recessed portions. A teeth block includes a plurality of protruding portions being coupled or fitted into the recessed portions of the yoke. The recessed portions and the protruding portions are disposed as a plurality of pairs in the lamination direction. The protruding portions and the yoke are fixed with a teeth fixing pin.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 3, 2004
    Applicant: DENSO CORPORATION
    Inventors: Shigenori Yoneda, Masahiro Seguchi, Noriyasu Inomata
  • Publication number: 20040061402
    Abstract: Provided is a multi-turn sequential segment joining stator coil capable of suppressing the differences in electromotive voltage between parallel circuits and of carrying a large current. Partial coils are accommodated in a plurality of continuous conductor accommodation positions of different slots. The partial coils accommodated in the same slot are separately connected in series to each other to produce parallel coils, and the produced parallel coils are connected in parallel with each other. This configuration enables the production of a sequential segment joining stator coil type electric rotating machine with a size-reduced head-side coil end.
    Type: Application
    Filed: July 10, 2003
    Publication date: April 1, 2004
    Applicant: DENSO CORPORATION
    Inventors: Shinji Kouda, Masahiro Seguchi