Patents by Inventor Mitsuhiro ICHIOKA

Mitsuhiro ICHIOKA 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: 11807100
    Abstract: A counter gear mechanism includes: a fifth gear in mesh with a third gear; a sixth gear in mesh with a fourth gear; and a seventh gear in mesh with a differential input gear. The seventh gear is disposed between the fifth gear and the sixth gear in an axial direction. A switching mechanism is disposed between the third gear and the fourth gear in the axial direction. The switching mechanism makes switching among: a state in which the third gear is coupled to a second input member; a state in which the fourth gear is coupled to the second input member; and a state in which the third gear and the fourth gear are decoupled from the second input member. This structure is able to make an entirety of an apparatus compact in size in the axial direction when the apparatus includes the switching mechanism to change the speed ratio between the second input member, which is drivingly coupled to an internal combustion engine, and output members.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 7, 2023
    Assignee: AISIN CORPORATION
    Inventors: Masaki Kawamoto, Mitsuhiro Ichioka, Tomoka Yamamoto, Akira Inoue, Hiroshi Kato
  • Publication number: 20220355657
    Abstract: A counter gear mechanism includes: a fifth gear in mesh with a third gear; a sixth gear in mesh with a fourth gear; and a seventh gear in mesh with a differential input gear. The seventh gear is disposed between the fifth gear and the sixth gear in an axial direction. A switching mechanism is disposed between the third gear and the fourth gear in the axial direction. The switching mechanism makes switching among: a state in which the third gear is coupled to a second input member; a state in which the fourth gear is coupled to the second input member; and a state in which the third gear and the fourth gear are decoupled from the second input member. This structure is able to make an entirety of an apparatus compact in size in the axial direction when the apparatus includes the switching mechanism to change the speed ratio between the second input member, which is drivingly coupled to an internal combustion engine, and output members.
    Type: Application
    Filed: July 7, 2020
    Publication date: November 10, 2022
    Applicant: AISIN CORPORATION
    Inventors: Masaki KAWAMOTO, Mitsuhiro ICHIOKA, Tomoka YAMAMOTO, Akira INOUE, Hiroshi KATO
  • Patent number: 11318834
    Abstract: A vehicle driving apparatus including: a rotating electrical machine that acts as a source of driving force for a first wheel and a second wheel; a speed reduction device that reduces a speed of rotation of the rotating electrical machine; a differential gear device that distributes, to the first wheel and the second wheel, the driving force transmitted from the rotating electrical machine via the speed reduction device; a case that houses the rotating electrical machine, the speed reduction device, and the differential gear device; and an oil circulator.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 3, 2022
    Assignee: AISIN CORPORATION
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka, Yuki Kawaguchi
  • Patent number: 11241947
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: February 8, 2022
    Assignee: AISIN CORPORATION
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka
  • Patent number: 11027616
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 8, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka, Yuki Kawaguchi
  • Patent number: 11015683
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 25, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka
  • Patent number: 11014455
    Abstract: A vehicle drive device that includes a rotating electrical machine that serves as a drive power source for a first wheel and a second wheel; a differential gear device that distributes drive power from the rotating electrical machine to the first wheel and the second wheel; a reduction device that includes a planetary gear mechanism with a sun gear, a carrier, and a ring gear; and a case that accommodates the rotating electrical machine, the differential gear device, and the reduction device.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 25, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka, Yuki Kawaguchi, Koji Ota, Kazuyuki Sasaki, Isao Fujishima
  • Publication number: 20210114467
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 22, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA, Yuki KAWAGUCHI
  • Publication number: 20210070158
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Application
    Filed: October 12, 2018
    Publication date: March 11, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA
  • Publication number: 20210062893
    Abstract: A vehicle driving device including: a rotary electric machine that is a driving force source of a first wheel and a second wheel; a speed reduction device that reduces a speed of a rotation of the rotary electric machine; and a differential gear device that distributes to the first wheel and the second wheel, a driving force that is transmitted from the rotary electric machine via the speed reduction device.
    Type: Application
    Filed: October 12, 2018
    Publication date: March 4, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA
  • Publication number: 20200282828
    Abstract: A vehicle driving apparatus including: a rotating electrical machine that acts as a source of driving force for a first wheel and a second wheel; a speed reduction device that reduces a speed of rotation of the rotating electrical machine; a differential gear device that distributes, to the first wheel and the second wheel, the driving force transmitted from the rotating electrical machine via the speed reduction device; a case that houses the rotating electrical machine, the speed reduction device, and the differential gear device; and an oil circulator.
    Type: Application
    Filed: September 28, 2018
    Publication date: September 10, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA, Yuki KAWAGUCHI
  • Publication number: 20200215920
    Abstract: A vehicle drive device that includes a rotating electrical machine that serves as a drive power source for a first wheel and a second wheel; a differential gear device that distributes drive power from the rotating electrical machine to the first wheel and the second wheel; a reduction device that includes a planetary gear mechanism with a sun gear, a carrier, and a ring gear; and a case that accommodates the rotating electrical machine, the differential gear device, and the reduction device.
    Type: Application
    Filed: August 24, 2018
    Publication date: July 9, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA, Yuki KAWAGUCHI, Koji OTA, Kazuyuki SASAKI, Isao FUJISHIMA