Patents by Inventor Sachiko Ihata

Sachiko Ihata 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).

  • Semi-cylindrical metal polishing element
    Patent number: 4902305
    Abstract: A metal polisher 1 is semi-cylindrical in shape to permit polishing a protruded or a recessed surface portion of a workpiece. A number of grooves 4 are formed circumferentially on a surface on which polishing teeth 3 are formed so as to temporarily store chipped dust arising from a polishing operation and drain the dust as stored.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: February 20, 1990
    Assignee: Nippon Tenshashi Kabushiki Kaisha
    Inventor: Sachiko Ihata
  • Magazine type knife
    Patent number: 4615118
    Abstract: A magazine type knife has a magazine which can be fitted in and removed from a magazine storage cavity formed in a main body of the knife. The magazine comprises a magazine case, a base plate, a first elastic body and a second elastic body, all of which are inseparably assembled together, but with which, when the magazine is removed from the main body, the second elastic body is freed to cease to press a forward end portion of the base plate toward a left wall side of the magazine case, thereby making it easy to insert blades into the magazine case.
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: October 7, 1986
    Assignee: Nippon Tenshashi Kabushiki Kaisha
    Inventor: Sachiko Ihata