Patents by Inventor Hirozi Watanabe

Hirozi Watanabe 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).

  • Sealing structure for rotary valves
    Patent number: 4235354
    Abstract: A sealing structure for a rotary valve including a rotary member having a plurality of pockets opening toward the outer periphery of a rotary member. A casing encloses the outer periphery of the rotary member. Sealing members are provided between the outer periphery of the rotary member and the inner periphery of the casing. The sealing members are adjustably projectable in the radial direction.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: November 25, 1980
    Assignee: Kokkoman Shoyu Co., Ltd.
    Inventors: Tatuo Aonuma, Michio Kiuchi, Hirozi Watanabe, Takeshi Akao
  • Sealing structure for rotary valves
    Patent number: 4228932
    Abstract: A sealing structure for a rotary valve including a rotary member having a plurality of pockets opening toward the outer periphery of a rotary member. A casing encloses the outer periphery of the rotary member. Sealing members are provided between the outer periphery of the rotary member and the inner periphery of the casing. The sealing members are adjustably projectable in the radial direction.
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: October 21, 1980
    Assignee: Kikkoman Shoyu Co., Ltd.
    Inventors: Tatuo Aonuma, Michio Kiuchi, Hirozi Watanabe, Takeshi Akao
  • Sealing structure for rotary valves
    Patent number: 4180188
    Abstract: A sealing structure for a rotary valve including a rotary member having a plurality of pockets opening toward the outer periphery of a rotary member. A casing encloses the outer periphery of the rotary member. Sealing members are provided between the outer periphery of the rotary member and the inner periphery of the casing. The sealing members are adjustably projectable in the radial direction.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: December 25, 1979
    Assignee: Kokkoman Shoyu Co., Ltd.
    Inventors: Tatuo Aonuma, Michio Kiuchi, Hirozi Watanabe, Takeshi Akao