Patents by Inventor Takuma OHNUKI

Takuma OHNUKI 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).

  • CYLINDER DEVICE, METAL SLIDING COMPONENT, AND METHOD FOR PRODUCING METAL SLIDING COMPONENT
    Publication number: 20220356590
    Abstract: This cylinder device includes a tubular cylinder that has an opening portion on at least one end side, a metal rod that protrudes through the opening portion of the cylinder, and a sliding contact member that is provided at the opening portion of the cylinder and comes into sliding contact with the rod. A chromium plating film is provided on a surface of the rod. An aspect ratio of an average crystallite diameter in a film thickness direction to an average crystallite diameter in an in-plane direction in the chromium plating film is 0.2 or smaller.
    Type: Application
    Filed: June 5, 2020
    Publication date: November 10, 2022
    Inventors: Takuma OHNUKI, Hiroshi NAKANO