Patents by Inventor Toshihisa Mizutani

Toshihisa Mizutani 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).

  • Publication number: 20220290749
    Abstract: A vehicle drive device is provided that can suppress the increase in dimension in the radial direction while ensuring a sufficient speed reduction ratio. Two driving force sources are arranged on a first axis, two output members are arranged on a second axis, two counter gear mechanisms are arranged on a third axis. A planetary gear mechanism is configured to transmit rotation from the two counter gear mechanisms to the output members, and is disposed so as to overlap with both of the two counter gear mechanisms as seen in an axial direction along and axial direction.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 15, 2022
    Applicants: AISIN CORPORATION, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Toshihisa MIZUTANI, Kenta KATAOKA, Taiki OWARI, Hiroaki OSANAI, Daiki SUYAMA, Hiroshi KATO, Yuki YANAGIHARA, Naoki TAKAHASHI, Kiminobu TERAO, Takuya OGASAWARA, Yosuke MORIMOTO
  • Patent number: 11407301
    Abstract: A first case portion includes an end wall portion disposed on a first axial side with respect to a transmission. A second case portion is disposed on the first axial side with respect to a rotor of a rotary electric machine, and includes a first support portion that supports a rotor shaft and a second support portion disposed on a second axial side with respect to the rotor of the rotary electric machine to support the rotor shaft. The second support portion includes a bearing attachment portion to which a rotor bearing for supporting the rotor shaft is attached, and radially extending portion that extends from bearing attachment portion toward an outer side in a radial direction. A speed reducer is disposed between the radially extending portion and the end wall portion in axial direction to face the radially extending portion and the end wall portion in the axial direction.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: August 9, 2022
    Assignee: AISIN CORPORATION
    Inventors: Hiroshi Kato, Daiki Suyama, Takuyo Maeda, Keita Inda, Kohei Ono, Toshihisa Mizutani, Ryosuke Muramatsu, Wataru Takaki, Tetsuro Kobayashi
  • Publication number: 20210402867
    Abstract: A first case portion includes an end wall portion disposed on a first axial side with respect to a transmission. A second case portion is disposed on the first axial side with respect to a rotor of a rotary electric machine, and includes a first support portion that supports a rotor shaft and a second support portion disposed on a second axial side with respect to the rotor of the rotary electric machine to support the rotor shaft. The second support portion includes a bearing attachment portion to which a rotor bearing for supporting the rotor shaft is attached, and radially extending portion that extends from bearing attachment portion toward an outer side in a radial direction. A speed reducer is disposed between the radially extending portion and the end wall portion in axial direction to face the radially extending portion and the end wall portion in the axial direction.
    Type: Application
    Filed: January 17, 2020
    Publication date: December 30, 2021
    Applicant: Aisin Corporation
    Inventors: Hiroshi KATO, Daiki SUYAMA, Takuyo MAEDA, Keita INDA, Kohei ONO, Toshihisa MIZUTANI, Ryosuke MURAMATSU, Wataru TAKAKI, Tetsuro KOBAYASHI
  • Patent number: 6232132
    Abstract: A method for polarization treatment of a piezoelectric/electrostrictive film type chip, comprising: providing a piezoelectric/electrostrictive film type chip comprising a plurality of piezoelectric/electro-strictive film type elements each having a piezoelec-tric/electrostrictive section constituted by a thin diaphragm, a lower electrode formed on the diaphragm, a piezoelectric/electrostrictive layer formed on the lower electrode, and an upper electrode formed on the piezoelectric/electrostrictive layer, dividing the plurality of piezoelectric/electrostrictive film type elements into two or more element groups, and subjecting each element group to a polarization treatment. The chip after the polarization treatment is low in dielectric breakdown and can be used as a reliable piezoelectric/electrostrictive film type chip.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: May 15, 2001
    Assignee: NGK Insulators, Ltd.
    Inventors: Shinsuke Yano, Toshihisa Mizutani, Masato Komazawa