Patents by Inventor Ryohei HANAMURE

Ryohei HANAMURE 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).

  • Automatic transmission power transmission device
    Patent number: 11149847
    Abstract: A power transmission device in an automatic transmission includes a friction tightening element (a second brake) having a drum member, and a transmission path constituent member (a third ring gear) coupled to the drum member via a coupling part extending circumferentially along the drum member, the drum member having low-rigidity parts (long holes) provided at a plurality of circumferential positions on the drum member in at least one of portions radially outside and inside the coupling part.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 19, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Masanori Sasaki, Masamichi Fujikawa, Kazuhiro Yamada, Kensuke Ueda, Sayaka Katayama, Yasuo Miura, Takeyuki Tanaka, Hirokazu Kouno, Takashi Miyamoto, Ryohei Hanamure, Siyuan Tao
  • AUTOMATIC TRANSMISSION POWER TRANSMISSION DEVICE
    Publication number: 20210048103
    Abstract: A power transmission device in an automatic transmission includes a friction tightening element (a second brake) having a drum member, and a transmission path constituent member (a third ring gear) coupled to the drum member via a coupling part extending circumferentially along the drum member, the drum member having low-rigidity parts (long holes) provided at a plurality of circumferential positions on the drum member in at least one of portions radially outside and inside the coupling part.
    Type: Application
    Filed: November 13, 2018
    Publication date: February 18, 2021
    Inventors: Masanori SASAKI, Masamichi FUJIKAWA, Kazuhiro YAMADA, Kensuke UEDA, Sayaka KATAYAMA, Yasuo MIURA, Takeyuki TANAKA, Hirokazu KOUNO, Takashi MIYAMOTO, Ryohei HANAMURE, Siyuan TAO