Patents by Inventor Toshihiko Shimizu

Toshihiko Shimizu 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).

  • Process for inhibiting corrosion of steel materials built in inorganic materials
    Patent number: 4605572
    Abstract: The present invention relates to a process for inhibiting corrosion of an existing steel material built in an inorganic material by applying an aqueous solution of an inorganic salt and a cement composition having corrosion-inhibiting effects on the surface of the inorganic material.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: August 12, 1986
    Assignee: Onoda Construction Materials Co., Ltd.
    Inventors: Kazuo Omata, Toshihiko Shimizu, Hiroshi Ibe, Kenji Hara
  • Method for repairing and restoring deteriorated cement-containing inorganic material
    Patent number: 4536417
    Abstract: A method for repairing and restoring a deteriorated cement-containing inorganic material such as reinforced concrete by applying a solution of a water-soluble silicate compound to its surface to have it impregnated with said solution, and then topcoating said material with cement paste or/and mortar.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: August 20, 1985
    Assignee: Onoda Construction Materials Co., Ltd.
    Inventor: Toshihiko Shimizu
  • Vibration preventive rubber device for automobiles
    Patent number: 4252339
    Abstract: A vibration preventive rubber device for automobiles comprising a pair of cylindrical rubber bodies each of which has a low spring constant and is provided at its center with a circumferentially extending annular groove and provided at least one side of the annular groove with an annular laminated body having a high rigidity and including a canvas layer and a rubber body.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: February 24, 1981
    Assignees: Nissan Motor Company, Limited, Tokai Rubber Industries Ltd.
    Inventors: Toshihiko Shimizu, Michio Tokushige