Patents by Inventor Saburo Ota

Saburo Ota 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).

  • Thermal recording media and void-containing polyolefin films for use therein
    Patent number: 6136750
    Abstract: Thermal recording media each having as a support or a part thereof, a void-containing polyolefin film with a void volume of from 10 cc to smaller than 40 cc per 100 g of the film. The thermal recording media can attain the excellent advantages that they have high resolving power, they can give high-density and distinct images recorded even with very small printing energy, they have high delamination resistance, i.e., they are not easily delaminated by adhesive tape or others, and they have high opacifying power and high elasticity.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: October 24, 2000
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Saburo Ota, Ichiro Kitaura, Atsushi Taga, Yoshifumi Yamamoto
  • Anchoring device for a tension member of prestressed concrete
    Patent number: 4837995
    Abstract: An anchoring device for prestressed concrete. The anchor is made of an outer member which has an inner hole with a cone shaped surface and an inner member which is made up of a plurality of wedges having at least one hole for holding a tension member. Both the inner member and the outer member are made by alternately superposing cloths of glass fibers and carbon fibers; impregnating the cloths with a resin and curing the resin.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: June 13, 1989
    Assignees: Mitsubishi Mining and Cement Co., Ltd., Kimpo Electronics Co., Ltd.
    Inventors: Hitoshi Omizono, Hiroshi Sasaki, Yasuo Fukatsu, Saburo Ota, Yoshio Ueda