Patents by Inventor Tomoaki Imai

Tomoaki Imai 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).

  • Shift device
    Patent number: 11920674
    Abstract: In this shift device, in a case in which an external force has acted on a lever when an operating mechanism is causing the lever to pivot, a clutch mechanism permits rotation of a first detent plate with respect to a second detent plate, such that pivoting of the lever is permitted. Note that a restraining mechanism urges the lever toward a shift position. This enables to the restraining mechanism to urge the lever separately to the clutch mechanism, thereby enabling the degrees of freedom for setting a biasing load on the lever by the restraining mechanism to be increased.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: March 5, 2024
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Tomonori Hayase, Koji Imai, Tomoaki Asai, Kota Nishida, Yohei Nakano, Yosuke Murakami, Munetoshi Makimura
  • Detecting partial discharge using a detection coil and analysis of output signal and noise frequency spectrums
    Patent number: 5469067
    Abstract: In an electric apparatus such as an electric power cable system, a high frequency pulse is induced on a conductive member such as a metal sheath, where partial discharge occurs in an insulation. The high frequency pulse is detected by means of a bypass lead wire, a metal foil electrode, a detecting coil, and the like provided on the electric apparatus without interrupting a live operation of the electric apparatus.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: November 21, 1995
    Assignee: Hitachi Cable, Ltd.
    Inventors: Takeshi Endoh, Tomoaki Imai, Mikio Hagiya
  • Method for detecting partial discharge in an insulation of an electric power apparatus
    Patent number: 5323117
    Abstract: In an electric apparatus such as an electric power cable system, a high frequency pulse is induced on a conductive member such as a metal sheath, where partial discharge occurs in an insulation. The high frequency pulse is detected by means of a bypass lead wire, a metal foil electrode, a detecting coil, and the like provided on the electric apparatus without interrupting a live operation of the electric apparatus.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: June 21, 1994
    Assignee: Hitachi Cable, Ltd.
    Inventors: Takeshi Endoh, Tomoaki Imai, Mikio Hagiya, Chuki Ikeda