Patents by Inventor Mitsufumi Nishu

Mitsufumi Nishu 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: 4576059
    Abstract: A shift lever support mechanism for a transmission comprises a shift lever having a partly spherical pivot body and a distal end extending from the partly spherical pivot body for engagement with a gear shifting actuator shaft of the transmission, a retainer member adapted to be mounted on the transmission casing and having a bore accommodating the spherical pivot body therein, the retainer member including a partly spherical seat supporting the partly spherical pivot body, the retainer member having a central opening through which the distal end extends, resilient means disposed in the bore in the retainer member for normally urging the partly spherical pivot body against the partly spherical seat, and a boot mounted on the shift lever and the retainer member and defining a space therein communicating with the bore in the retainer member.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: March 18, 1986
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Mitsufumi Nishu, Kenji Takeuchi, Masanori Sato, Ichiro Horiuchi, Katsuhiko Muramatsu, Koji Kiryu
  • Patent number: 4476740
    Abstract: A shift mechanism for a change-speed gear transmission includes a manual gearshift lever arranged to be selectively shiftable toward forward speed-ratio and reverse-ratio positions at the same gate in a gearshift pattern, a movable member integral with a selector shaft mounted within a housing assembly of the gear transmission for both axial and rotary movement and being operatively connected to the gearshift lever to be axially moved in selecting operation of the gearshift lever toward the gate and to be rotated in shifting operation of the gearshift lever toward one of the forward speed-ratio and reverse-ratio positions.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: October 16, 1984
    Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Shuichiro Ida, Shoichi Ooshima, Ichiro Horiuchi, Mitsufumi Nishu