Patents by Inventor Chuichi Sato

Chuichi Sato 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).

  • Fluid pressure seal arrangement
    Patent number: 4029323
    Abstract: In a body supporting another body via a land into which sealing gas is supplied via an in-coming gas groove or grooves for liquid sealing purpose and from which fluid is discharged through a fluid groove, one or more sets of out-going gas grooves are formed opening to the land in between the in-coming gas groove(s) and the fluid groove so that both undesirable mixing of the sealing gas with the fluid and accidental invasion of outside dust or the like into the arrangement is effectively prevented.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: June 14, 1977
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Gentei Inoue, Chuichi Sato, Mamoru Tanaka, Nobuhiro Matsuo
  • Fluid pressure seal arrangement
    Patent number: 3949996
    Abstract: In a body supporting another body via a land into which sealing gas is supplied via an in-coming gas groove or grooves for liquid sealing purpose and from which fluid is discharged through a fluid groove, one or more sets of out-going gas grooves are formed opening to the land in between the in-coming gas groove(s) and the fluid groove so that both undesirable mixing of the sealing gas with the fluid and accidental invasion of outside dust or the like into the arrangement is effectively prevented.
    Type: Grant
    Filed: April 3, 1973
    Date of Patent: April 13, 1976
    Assignee: Nippon Seiko Kabushiki Kaisha
    Inventors: Gentei Inoue, Chuichi Sato, Mamoru Tanaka, Nobuhiro Matsuo