Patents by Inventor Kazuhiro ICHIHARA

Kazuhiro ICHIHARA 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).

  • Wet friction plate, wet multi-plate clutch device provided with same wet friction plate, and method for manufacturing wet friction plate
    Patent number: 11401980
    Abstract: Provided are a wet friction plate configured so that drag torque can be reduced while a manufacturing burden is reduced with a simple configuration, a wet multiplate clutch device including the wet friction plates, and a wet friction plate manufacturing method. A wet friction plate (200) includes friction members (210) provided on a flat plate annular core metal (201), having oil grooves (203), and made of a paper material. The friction members (210) include higher friction members (211) and lower friction members (212). The higher friction member (211) is formed such that the height thereof from a surface of the core metal (201) is higher than that of the lower friction member (212). In addition, the higher friction member (211) is formed with a less-elastically-deformable structure than that of the lower friction member (212). The lower friction member (212) is formed such that the height thereof from the surface of the core metal (201) is lower than that of the higher friction member (211).
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: August 2, 2022
    Assignee: Kabushiki Kaisha F.C.C.
    Inventors: Kenichiro Seki, Kazuhiro Ichihara, Akihiro Yamashita, Koji Miyoshi
  • WET FRICTION PLATE, WET MULTI-PLATE CLUTCH DEVICE PROVIDED WITH SAME WET FRICTION PLATE, AND METHOD FOR MANUFACTURING WET FRICTION PLATE
    Publication number: 20220018400
    Abstract: Provided are a wet friction plate configured so that drag torque can be reduced while a manufacturing burden is reduced with a simple configuration, a wet multiplate clutch device including the wet friction plates, and a wet friction plate manufacturing method. A wet friction plate (200) includes friction members (210) provided on a flat plate annular core metal (201), having oil grooves (203), and made of a paper material. The friction members (210) include higher friction members (211) and lower friction members (212). The higher friction member (211) is formed such that the height thereof from a surface of the core metal (201) is higher than that of the lower friction member (212). In addition, the higher friction member (211) is formed with a less-elastically-deformable structure than that of the lower friction member (212). The lower friction member (212) is formed such that the height thereof from the surface of the core metal (201) is lower than that of the higher friction member (211).
    Type: Application
    Filed: November 1, 2019
    Publication date: January 20, 2022
    Inventors: Kenichiro SEKI, Kazuhiro ICHIHARA, Akihiro YAMASHITA, Koji MIYOSHI