Patents by Inventor Eiji Uematu

Eiji Uematu 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).

  • Method for deaerating electrorheological fluid in a closed device
    Patent number: 6837919
    Abstract: According to the present invention, electrorheological fluid is deaerated after it is sealed in a closed device which is operated by the electrorheological fluid. Thus, it is possible to control the operation of the closed device in accordance with an electric field. Additionally, the control of viscosity is not affected by repetitive operations of the closed device, thereby obtaining a closed device having a smooth operation and good repeatability. The deaeration is achieved under a predetermined reduced pressure, for example, of not more than 100 torr. In addition thereto, a suitable heating process is carried out as required.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: January 4, 2005
    Assignees: Nippon Shokubai Co., Ltd., CKD Corporation
    Inventors: Yoshinobu Asako, Satoru Ono, Kazutoshi Ito, Eiji Uematu
  • Method for deaerating electrorheological fluid in a closed device
    Publication number: 20030024392
    Abstract: According to the present invention, electrorheological fluid is deaerated after it is sealed in a closed device which is operated by the electrorheological fluid. Thus, it is possible to control the operation of the closed device in accordance with an electric field. Additionally, the control of viscosity is not affected by repetitive operations of the closed device, thereby obtaining a closed device having a smooth operation and good repeatability. The deaeration is achieved under a predetermined reduced pressure, for example, of not more than 100 torr. In addition thereto, a suitable heating process is carried out as required.
    Type: Application
    Filed: September 30, 2002
    Publication date: February 6, 2003
    Inventors: Yoshinobu Asako, Satoru Ono, Kazutoshi Ito, Eiji Uematu