Patents by Inventor Yasushi Kurita

Yasushi Kurita 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).

  • Tension adjusting mechanism for cord or the like
    Patent number: 6042040
    Abstract: A tension adjusting mechanism for cord or the like can adjust tension more appropriately than conventional ones. The tension adjusting mechanism comprises a wrapping roller (2), for the cord or the like, which is formed such that it can be rotatingly driven by a drive means, detects tension on the cord or the like (C) after leaving the wrapping roller (2), and controls the drive means so as to make the detected tension approach a proper value suitable for the cord or the like (C).
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: March 28, 2000
    Assignee: Nitta Corporation
    Inventors: Yasushi Kurita, Tomohiro Agaya
  • Polyurethane elastomer actuator
    Patent number: 5977685
    Abstract: A polyurethane elastomer actuator comprising a polyurethane elastomer 1 capable of deforming due to the orientation by an electric field, wherein the shrinkage displacement occurring at the time of the application of an electric field is transformed into other displacement. This polyurethane elastomer actuator does not require electrolyte and high voltage. Since it is not accompanied by chemical reactions and heat generation, its durability hardly deteriorates. This actuator deforms largely during driving.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: November 2, 1999
    Assignees: Nitta Corporation, Toshihiro Hirai
    Inventors: Yasushi Kurita, Tsutomu Ueda, Toshiaki Kasazaki, Toshihiro Hirai