Patents by Inventor Tatsuo Uchihara

Tatsuo Uchihara 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).

  • Non-linkage type load sensing valve
    Patent number: 4353600
    Abstract: In a load sensing valve including a proportioning valve (P-valve) and a deceleration sensing valve (G-valve), a compensating device is installed for varying the volume of the fluid sealing chamber of the G-valve in accordance with the magnitude of sealed hydraulic pressure in the fluid sealing chamber when the sealed hydraulic pressure is lower than a predetermined valve to change the pressure controlling characteristic of the proportioning valve.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: October 12, 1982
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tatsuo Uchihara, Tadao Takimoto, Junichi Fujimoto, Katuhiro Morita, Hitoshi Kubota