Patents by Inventor Hidehiko Kaneda

Hidehiko Kaneda 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).

  • Underwater hydraulic tool
    Patent number: 4526239
    Abstract: An underwater hydraulic tool has a hydraulic motor with an inlet port and an outlet port for receiving and discharging water under pressure and a rotating shaft rotated by water under pressure with the front end protruding from said motor for holding a working tool. A rear mounting member is attached to a rear part of the hydraulic motor and has openings spaced circumferentially therearound. A front mounting member is attached to a front part of the hydraulic motor and also openings spaced circumferentially therearound. At least portions of the openings in both members are located outwards of the outer circumferential wall of the hydraulic motor.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: July 2, 1985
    Assignee: Japan Marine Science & Technology Center
    Inventors: Hidehiko Kaneda, Natsuo Inagaki, Hitoshi Yamaguchi