Patents by Inventor Tatsumasa YAMASHIRO

Tatsumasa YAMASHIRO 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 control device
    Patent number: 12152613
    Abstract: A pilot pressure supply solenoid valve (36) is disposed in a flow path connecting an inlet port (16) and a pilot chamber (48), and a pilot pressure discharge solenoid valve (38) is disposed in a flow path through which a pressure fluid in the pilot chamber is discharged to the exterior. A flow path, through which the pressure fluid that has passed through a supply valve (26) is discharged to the exterior, is not provided.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: November 26, 2024
    Assignee: SMC CORPORATION
    Inventor: Tatsumasa Yamashiro
  • FLUID PRESSURE CONTROL DEVICE
    Publication number: 20220228608
    Abstract: A pilot pressure supply solenoid valve (36) is disposed in a flow path connecting an inlet port (16) and a pilot chamber (48), and a pilot pressure discharge solenoid valve (38) is disposed in a flow path through which a pressure fluid in the pilot chamber is discharged to the exterior. A flow path, through which the pressure fluid that has passed through a supply valve (26) is discharged to the exterior, is not provided.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 21, 2022
    Applicant: SMC CORPORATION
    Inventor: Tatsumasa YAMASHIRO