Patents by Inventor Kazutoyo Shimizu

Kazutoyo 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).

  • Method for using rubber product or rubber member
    Patent number: 6303705
    Abstract: The present invention provides a method for using a rubber product or a rubber member in which at least one portion of the surface of the rubber product or the rubber member to be used in clean environments is allowed to swell by using a solvent, and then used. After at least one portion of the surface of the rubber product or the rubber member has been subjected to swelling by the solvent, it is used to handle electronic parts or the elements thereof; thus, a manufacturing method for electronic parts for manufacturing the electronic parts in clean environments is provided.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: October 16, 2001
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventor: Kazutoyo Shimizu
  • Method of cutting a ceramic base plate
    Patent number: 6176762
    Abstract: A method for cutting a ceramic base plate with which the process efficiency is improved, a stable cutting resistance can be maintained during the cutting process, and excellent process precision can be achieved, a wherein supporting plate which is used for the cutting of the ceramic base plate has a structure of a sealed surface layer which has been impregnated with glass components into both surfaces of the sintered porous alumina body. The supporting plate is fixed on a stage of a cutting machine along a forward direction of the rotary cutting blade through a vacuum-absorption and the ceramic base plate as a work-piece is wax-bonded to the supporting plate. While rotating the rotary cutting blade, first of all, the supporting plate is cut so that the blade is dressed/sharpened with the sintered porous alumina body.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: January 23, 2001
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Kazutoyo Shimizu, Naoyuki Okamoto, Makoto Fukuda
  • Ceramics dress substrate and method of using the dress substrate
    Patent number: 6176769
    Abstract: A ceramics dress substrate of the present invention capable of both performances of cutting a cut material with a high accuracy and dressing a diamond cutting grindstone with an excellent cutting property and an reduced wearing amount of the grindstone. This ceramics dress substrate comprises sintering a mixture of ceramics grinding particles and a silicate mineral, The ceramics grinding particles are preferably uniformed and have a scratch hardness ranging from 6 to 10. Alumina grinding particles, silicon carbide and mullite are preferably used as the ceramics grinding particles, and a kaolin mineral, pyrophyllite, montmorillonite, sericite, talc and chlorite are preferably used as the silicate mineral. The ceramics dress substrate is preferably coated with glass.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 23, 2001
    Assignees: Narumi China Corporation, Sumitomo Special Metals Co., Ltd.
    Inventors: Masato Suzuki, Shirohito Matsuyama, Katsushi Sugita, Kazutoyo Shimizu, Naoyuki Okamoto