Patents by Inventor Yasumitsu Osada

Yasumitsu Osada 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: 11047453
    Abstract: A planetary gear mechanism has a first planetary gear train that includes a ring gear to which power from a main power source is input, a planetary carrier that is connected to a first output shaft, a first planetary pinion that is turnably supported by the planetary carrier, and a first sun gear that is connected to a distribution electric motor. The planetary gear mechanism also has a second planetary gear train that includes the ring gear, the planetary carrier, the first planetary pinion, a second planetary pinion that is turnably supported by the planetary carrier, and a second sun gear that is connected to a second output shaft.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 29, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasumitsu Osada, Teruhiko Nakazawa, Atsushi Suzuki, Hiroyuki Nishizawa, Yasuhiro Torii
  • Patent number: 10926647
    Abstract: A vehicle driving apparatus includes a first motor, a second motor, and a planetary mechanism, and obtains a driving force by combining motive forces obtained from the first motor and the second motor by a planetary gear of the planetary mechanism. The vehicle driving apparatus includes at least one of a design value and a control quantity in which a frequency ratio between a sound generated by a rotation of the first motor and a sound generated by a rotation of the second motor satisfies a reduction condition of dissonance.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: February 23, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhiko Nakazawa, Ryoichi Hibino, Makoto Kusakabe, Yasumitsu Osada, Shoji Nakahara, Hiroyuki Nishizawa, Yasuhiro Torii
  • Publication number: 20200284302
    Abstract: A dog clutch for a vehicle includes gear-side meshing teeth provided on a shifting gear fitted so as to be rotatable relative to a shaft, and a dog ring disposed adjacent to the shifting gear in the axial direction of the shaft. The dog ring includes a first ring, a second ring, and springs interposed between the two rings. The first ring is provided with meshing teeth that can be meshed with the gear-side meshing teeth of the shifting gear. The second ring is provided with meshing teeth that can be meshed with the gear-side meshing teeth of the shifting gear. The springs are provided on the inner peripheral side of a circle that is centered on a rotational axis and that circumscribes a portion of the meshing teeth of the first ring and the second ring positioned on the outermost peripheral side.
    Type: Application
    Filed: February 18, 2020
    Publication date: September 10, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiro Inaba, Akihiko Ichikawa, Tomoyasu Kurimoto, Takeshi Kamiya, Yuuki Masui, Isamu Shiotsu, Yasumitsu Osada
  • Patent number: 10563728
    Abstract: A first gear pair includes a first pinion on an input shaft and a first ring gear on an intermediate shaft. A second gear pair includes a second pinion on the intermediate shaft and a second ring gear on an output shaft. A first case that stores the first gear pair is coupled to a base member in a rotatable manner around an input shaft rotational axis. A second case is coupled to the first case in a rotatable manner around an intermediate shaft rotational axis.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: February 18, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Atsushi Suzuki, Gentaro Yamanaka, Yasumitsu Osada, Masaru Sugai
  • Publication number: 20190329658
    Abstract: A vehicle driving apparatus includes a first motor, a second motor, and a planetary mechanism, and obtains a driving force by combining motive forces obtained from the first motor and the second motor by a planetary gear of the planetary mechanism. The vehicle driving apparatus includes at least one of a design value and a control quantity in which a frequency ratio between a sound generated by a rotation of the first motor and a sound generated by a rotation of the second motor satisfies a reduction condition of dissonance.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 31, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhiko NAKAZAWA, Ryoichi HIBINO, Makoto KUSAKABE, Yasumitsu OSADA, Shoji NAKAHARA, Hiroyuki NISHIZAWA, Yasuhiro TORII
  • Publication number: 20190316655
    Abstract: A planetary gear mechanism has a first planetary gear train that includes a ring gear to which power from a main power source is input, a planetary carrier that is connected to a first output shaft, a first planetary pinion that is turnably supported by the planetary carrier, and a first sun gear that is connected to a distribution electric motor. The planetary gear mechanism also has a second planetary gear train that includes the ring gear, the planetary carrier, the first planetary pinion, a second planetary pinion that is turnably supported by the planetary carrier, and a second sun gear that is connected to a second output shaft.
    Type: Application
    Filed: March 19, 2019
    Publication date: October 17, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasumitsu OSADA, Teruhiko NAKAZAWA, Atsushi SUZUKI, Hiroyuki NISHIZAWA, Yasuhiro TORII
  • Publication number: 20190285140
    Abstract: A first gear pair includes a first pinion on an input shaft and a first ring gear on an intermediate shaft. A second gear pair includes a second pinion on the intermediate shaft and a second ring gear on an output shaft. A first case that stores the first gear pair is coupled to a base member in a rotatable manner around an input shaft rotational axis. A second case is coupled to the first case in a rotatable manner around an intermediate shaft rotational axis.
    Type: Application
    Filed: November 19, 2018
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Atsushi SUZUKI, Gentaro YAMANAKA, Yasumitsu OSADA, Masaru SUGAI
  • Patent number: 9716412
    Abstract: This rotor for a rotating electric motor includes a hollow cylindrical rotor core with a plurality of laminated electromagnetic steel plates. The inner and outer circumferential surfaces of the rotor core each face a magnetic gap. The rotor core is interposed between a first rotating support member and a second rotating support member. A flange is formed on a first end of a tubular pin protruding from a first hole of the first rotating support member. A tubular expansion part of the tubular pin plastically deforms due to fluid pressure so as to come into close contact with a through hole of the rotor core, the first hole of the first rotating support member, and a second hole of the second rotating support member.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: July 25, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirohito Hayashi, Takahiro Shiina, Masahide Uemura, Akira Murakami, Tomoyuki Tohyama, Eiji Tsuchiya, Yasumitsu Osada, Wataru Hijikata, Takao Watanabe
  • Patent number: 9673689
    Abstract: Provided is a compound motor (14) comprising a magnet rotor (19) supported by bearings (B3, B4) in a rotatable manner, a winding rotor (20) supported by bearings (B5, B6) in a rotatable manner relative to the magnet rotor (19) at the inner side of the magnet rotor (19) and having rotor winding units (20b), and slip ring mechanisms (25). A space is formed in the inner circumference of the winding rotor (20). At least a part of the slip ring mechanisms (25) is arranged in the space of the inner circumference of the winding rotor (20). The bearings (B3 to B6) include bearings (B3, B6), the internal diameter of each is larger than the size of slip ring mechanisms (25) with respect to the radial direction. The bearings (B3, B6) are arranged outside the slip ring mechanisms (25) with respect to the radial direction.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: June 6, 2017
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo Kenkyusho, Aisin Seiki Kabushiki Kaisha
    Inventors: Takahiro Shiina, Akira Murakami, Tadashi Fujiyoshi, Yasumitsu Osada, Takao Watanabe, Shu Asami, Eiji Tsuchiya, Tomoyuki Tohyama
  • Publication number: 20160079817
    Abstract: This rotor for a rotating electric motor includes a hollow cylindrical rotor core with a plurality of laminated electromagnetic steel plates. The inner and outer circumferential surfaces of the rotor core each face a magnetic gap. The rotor core is interposed between a first rotating support member and a second rotating support member. A flange is formed on a first end of a tubular pin protruding from a first hole of the first rotating support member. A tubular expansion part of the tubular pin plastically deforms due to fluid pressure so as to come into close contact with a through hole of the rotor core, the first hole of the first rotating support member, and a second hole of the second rotating support member.
    Type: Application
    Filed: January 21, 2014
    Publication date: March 17, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirohito HAYASHI, Takahiro SHINA, Masahide UEMURA, Akira MURAKAMI, Tomoyuki TOHYAMA, Eiji TSUCHIYA, Yasumitsu OSADA, Wataru HIJIKATA, Takao WATANABE
  • Publication number: 20140197716
    Abstract: Provided is a compound motor (14) comprising a magnet rotor (19) supported by bearings (B3, B4) in a rotatable manner, a winding rotor (20) supported by bearings (B5, B6) in a rotatable manner relative to the magnet rotor (19) at the inner side of the magnet rotor (19) and having rotor winding units (20b), and slip ring mechanisms (25). A space is formed in the inner circumference of the winding rotor (20). At least a part of the slip ring mechanisms (25) is arranged in the space of the inner circumference of the winding rotor (20). The bearings (B3 to B6) include bearings (B3, B6), the internal diameter of each is larger than the size of slip ring mechanisms (25) with respect to the radial direction. The bearings (B3, B6) are arranged outside the slip ring mechanisms (25) with respect to the radial direction.
    Type: Application
    Filed: August 6, 2012
    Publication date: July 17, 2014
    Inventors: Takahiro Shiina, Akira Murakami, Tadashi Fujiyoshi, Yasumitsu Osada, Takao Watanabe, Shu Asami, Eiji Tsuchiya, Tomoyuki Tohyama