Patents by Inventor Kenji Kitada

Kenji Kitada 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: 11323004
    Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the iron core. A flow path through which a heat exchange medium is supplied and discharged is formed in the iron core along an axial direction thereof.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 3, 2022
    Assignee: EXEDY CORPORATION
    Inventors: Hitoshi Katsura, Taichi Kitamura, Kenji Kitada
  • Patent number: 11293535
    Abstract: A launch device coupling a prime mover to a transmission. The launch device includes a front cover for connecting to the output of the prime mover and an output hub for connecting to the input of the transmission. A rear cover is connected to the front cover and cooperates to define a chamber. Within the chamber are an impeller and a turbine having a plurality of opposing blades such that hydraulic fluid is directed from the impeller blades and toward the turbine blades. A main damper is provided between the turbine and output hub of the launch device. Coupled to the main damper is a lock-out clutch configured to releasably lock the main damper for rotation with one of the front and rear covers. The launch device also includes an active dynamic damper system coupled to the main damper and configured to reduce resonance influence on the main damper.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 5, 2022
    Assignee: EXEDY GLOBALPARTS CORPORATION
    Inventors: Kenji Kitada, Scott Binder, Ken Mototsune, Daniel Leschuk
  • Publication number: 20220098424
    Abstract: One aspect of the ink jet ink set according to the present disclosure is an ink jet ink set including an anionic ink containing an anionic resin, a pigment, and water, and a cationic ink containing a cationic resin, a pigment, and water, in which the anionic ink and the cationic ink are similar colors to each other, the pigment in the anionic ink is coated with the anionic resin, the pigment in the cationic ink is coated with the cationic resin, and the anionic resin or the cationic resin, or both have a urethane-based skeleton or a polyester-based skeleton.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Kenji KITADA, Takeshi YANO, Shinichi NAITO, Kenta KIKUCHI, Hirofumi HOKARI
  • Publication number: 20220077746
    Abstract: A drive device includes a fluid coupling and a rotary electrical machine. The fluid coupling includes an impeller and a turbine, and is configured such that a torque is inputted thereto from one axial side and outputted therefrom to another axial side. The rotary electrical machine includes a first stator and a rotor. The first stator is disposed in a non-rotatable manner. The rotor is disposed to be rotated about a rotational axis of the fluid coupling. The first stator includes a first stator core, first and second coil ends. The first coil end protrudes from the first stator core in an axial direction. The second coil end protrudes from the first stator core to an opposite side of the first coil end in the axial direction. The first coil end is bent radially outward and located in part radially outside an outer peripheral surface of the first stator core.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 10, 2022
    Inventors: Kenji KITADA, Yuki KAWAHARA, Tomohiro WADA, Takuma SHIMADA, Yukiyoshi TAKADA
  • Publication number: 20220072945
    Abstract: A drive device includes a fluid coupling and a rotary electrical machine. The fluid coupling is configured such that a torque is inputted thereto from a first side in an axial direction and is outputted therefrom to a second side in the axial direction. The rotary electrical machine includes a first stator and a rotor. The first stator is disposed in a non-rotatable manner. The rotor is disposed to be rotated about a rotational axis of the fluid coupling. The rotary electrical machine is disposed on the second side with respect to the fluid coupling in the axial direction. The rotary electrical machine overlaps the fluid coupling in an axial view.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 10, 2022
    Inventors: Kenji KITADA, Yuki KAWAHARA, Tomohiro WADA, Takuma SHIMADA, Yukiyoshi TAKADA
  • Publication number: 20220072946
    Abstract: A drive device includes a fluid coupling, a rotary electrical machine, and a damper device. The fluid coupling includes an input unit and an output unit. The input unit includes an impeller. The output unit includes a turbine. The rotary electrical machine includes a first stator and a rotor. The first stator is disposed in a non-rotatable manner. The rotor is attached to the output unit. The damper device is disposed axially adjacent to the fluid coupling. The damper device is connected to the input unit.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 10, 2022
    Inventors: Kenji KITADA, Yuki KAWAHARA, Tomohiro WADA, Takuma SHIMADA, Yukiyoshi TAKADA
  • Publication number: 20220077747
    Abstract: A drive device includes a fluid coupling, a transmission shaft, and a rotary electrical machine. The fluid coupling includes a cover, a turbine, and an impeller. The turbine is fixed to the cover. The impeller is disposed inside an outer shell formed by the cover and the turbine. The impeller is opposed to the turbine. The transmission shaft extends to penetrate the outer shell of the fluid coupling. The transmission shaft is connected to the impeller . The rotary electrical machine includes a first stator and a rotor. The first stator is disposed in a non-rotatable manner. The rotor is attached to the outer shell of the fluid coupling.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 10, 2022
    Inventors: Kenji KITADA, Yuki KAWAHARA, Tomohiro WADA, Takuma SHIMADA, Yukiyoshi TAKADA
  • Patent number: 11183911
    Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the field coil. The rotor includes a first rotor portion and a second rotor portion. The rotating electric machine further comprises a positioning member disposed in each of the first gap, the second gap, and the third gap to position each of the first rotor portion and the second rotor portion in the circumferential direction and the extending direction.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: November 23, 2021
    Assignee: EXEDY CORPORATION
    Inventors: Hitoshi Katsura, Taichi Kitamura, Kenji Kitada
  • Publication number: 20210305926
    Abstract: A rotational electric machine includes: a stator configured to generate a rotating magnetic field by an alternating current converted from a power supply voltage of a battery; a rotor configured to rotate by the rotating magnetic field; a field coil configured to excite the rotor by a direct current converted from a power supply voltage of the battery; an acquisition unit configured to acquire the power supply voltage and an induced voltage of the rotational electric machine; and a power generation control unit configured to perform regenerative power generation when the induced voltage acquired is lower than a preset voltage equal to or lower than the power supply voltage acquired, and to perform alternator power generation by the induced voltage when the induced voltage acquired is equal to or higher than the preset voltage.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 30, 2021
    Inventors: Kohsuke MURATA, Kenji KITADA
  • Patent number: 11124056
    Abstract: A vehicle drive apparatus includes a fluid coupling connected to an engine, and a rotating electric machine connected to the engine via the fluid coupling. The fluid coupling has an impeller to which torque having been output from the engine is input, and a turbine facing the impeller. The impeller rotates about a rotation axis. Torque having been output from the impeller is input to the turbine via a fluid. The turbine rotates about the rotation axis. The vehicle drive apparatus has a path provided between an output shaft of the engine and the impeller, the path through which torque having been output from the engine is transmitted to the impeller not via the turbine, and paths through which torque having been input to the impeller is output via the rotating electric machine, passing through a radially outside relative to the impeller with respect to the rotation axis from the impeller via the turbine.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: September 21, 2021
    Assignee: EXEDY CORPORATION
    Inventors: Yuuki Kawahara, Kenji Kitada, Taichi Kitamura, Kohsuke Murata
  • Publication number: 20210070161
    Abstract: A vehicle drive apparatus includes a fluid coupling connected to an engine, and a rotating electric machine connected to the engine via the fluid coupling. The fluid coupling has an impeller to which torque having been output from the engine is input, and a turbine facing the impeller. The impeller rotates about a rotation axis. Torque having been output from the impeller is input to the turbine via a fluid. The turbine rotates about the rotation axis. The vehicle drive apparatus has a path provided between an output shaft of the engine and the impeller, the path through which torque having been output from the engine is transmitted to the impeller not via the turbine, and paths through which torque having been input to the impeller is output via the rotating electric machine, passing through a radially outside relative to the impeller with respect to the rotation axis from the impeller via the turbine.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 11, 2021
    Inventors: Yuuki KAWAHARA, Kenji KITADA, Taichi KITAMURA, Kohsuke MURATA
  • Publication number: 20210062902
    Abstract: A launch device coupling a prime mover to a transmission. The launch device includes a front cover for connecting to the output of the prime mover and an output hub for connecting to the input of the transmission. A rear cover is connected to the front cover and cooperates to define a chamber. Within the chamber are an impeller and a turbine having a plurality of opposing blades such that hydraulic fluid is directed from the impeller blades and toward the turbine blades. A main damper is provided between the turbine and output hub of the launch device. Coupled to the main damper is a lock-out clutch configured to releasably lock the main damper for rotation with one of the front and rear covers. The launch device also includes an active dynamic damper system coupled to the main damper and configured to reduce resonance influence on the main damper.
    Type: Application
    Filed: January 25, 2019
    Publication date: March 4, 2021
    Inventors: Kenji KITADA, Scott BINDER, Ken MOTOTSUNE, Daniel LESCHUK
  • Publication number: 20200366155
    Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the iron core. A flow path through which a heat exchange medium is supplied and discharged is formed in the iron core along an axial direction thereof.
    Type: Application
    Filed: April 15, 2020
    Publication date: November 19, 2020
    Inventors: Hitoshi KATSURA, Taichi KITAMURA, Kenji KITADA
  • Publication number: 20200366175
    Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the field coil. The rotor includes a first rotor portion and a second rotor portion. The rotating electric machine further comprises a positioning member disposed in each of the first gap, the second gap, and the third gap to position each of the first rotor portion and the second rotor portion in the circumferential direction and the extending direction.
    Type: Application
    Filed: April 15, 2020
    Publication date: November 19, 2020
    Inventors: Hitoshi KATSURA, Taichi KITAMURA, Kenji KITADA
  • Publication number: 20200366139
    Abstract: A rotating electric machine includes a non-rotating member, a stator fixed to the non-rotating member, a field coil fixed to the non-rotating member, disposed on an inner diameter side of the stator, and having an iron core and a winding wound around the iron core, and a rotor rotatably disposed between the stator and the field coil. The rotor has, at a portion facing the stator, different radial dimensions with respect to a rotary shaft of the rotor between a one end of the rotor in an extending direction of the rotary shaft and a portion different from the one end in the extending direction.
    Type: Application
    Filed: April 15, 2020
    Publication date: November 19, 2020
    Inventors: Hitoshi KATSURA, Taichi KITAMURA, Kenji KITADA
  • Publication number: 20200271190
    Abstract: A rotary device includes a first rotor, a centrifugal element, a first urging member, and a second urging member. The first rotor is disposed to be rotatable. The centrifugal element is attached to the first rotor. The centrifugal element is radially movable by a centrifugal force acting thereon in rotation of the first rotor. The first urging member is configured to urge the centrifugal element radially outward. The second urging member is configured to urge the centrifugal element radially inward.
    Type: Application
    Filed: December 26, 2019
    Publication date: August 27, 2020
    Inventors: Kenji KITADA, Yusuke TOMITA
  • Patent number: 10745015
    Abstract: A power transmission system and an attenuation mechanism are disclosed. A power transmission system includes an electric motor, a drive wheel, a transmission shaft and an attenuation mechanism. The transmission shaft transmits a torque between the electric motor and the drive wheel. The attenuation mechanism is attached to the transmission shaft. The attenuation mechanism includes a support member and an inertia member. The support member is attached to the transmission shaft. The inertia member is disposed to be rotatable relative to the transmission shaft. The inertia member is engaged with the support member by friction.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: August 18, 2020
    Assignee: EXEDY CORPORATION
    Inventors: Katsuaki Waki, Kenji Kitada
  • Publication number: 20200239718
    Abstract: An aqueous ink jet composition of the present disclosure includes: at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of an ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of a polyalkylene glycol; and an anionic dispersant.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 30, 2020
    Inventors: Kenji KITADA, Hiroko HAYASHI, Yasunari IKEDA, Hisashi OKAMURA, Kenta KIKUCHI, Hirofumi HOKARI, Shinichi NAITO, Kazumasa OTSUKI, Michio NAKAMORI, Shinichi YAMAMOTO, Seiji KAGAMI, Shigeki KAWADA
  • Patent number: 10718403
    Abstract: A rotary device includes a first rotor, a centrifugal element, a first urging member, and a second urging member. The first rotor includes a guide surface and is disposed to be rotatable. The centrifugal element is attached to the first rotor. The centrifugal element is radially movable along the guide surface by a centrifugal force acting thereon in rotation of the first rotor. The first urging member is configured to urge the centrifugal element. The second urging member is configured to urge the centrifugal element in a direction opposite to a direction of urging by the first urging member. The first and second urging members are further configured to rotate the centrifugal element toward the guide surface.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: July 21, 2020
    Assignee: EXEDY CORPORATION
    Inventors: Kenji Kitada, Yusuke Tomita
  • Publication number: 20200207999
    Abstract: An aqueous ink jet composition contains: C.I. Disperse Red 364; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of the ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of the polyalkylene glycol; and an anionic dispersant.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Hisashi OKAMURA, Hiroko HAYASHI, Kenji KITADA, Yasunari IKEDA, Hirofumi HOKARI, Shinichi YAMAMOTO, Michio NAKAMORI, Shigeki KAWADA, Kenta KIKUCHI, Kazumasa OTSUKI, Seiji KAGAMI, Shinichi NAITO