Patents by Inventor Shigetsugu Takigawa

Shigetsugu Takigawa 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).

  • Patent number: 5263257
    Abstract: Herein disclosed is a pruning saw which comprises: a saw blade (1); a grip sheath (3) having a blade guide hole (2) extending therethrough in the longitudinal direction thereof for guiding the saw blade (1) slidably; and a handle (4) positioned at the back of the grip sheath (3) and extending from the saw blade (1), the saw blade (1) being so inserted into the blade guide hole (2) that it can be pushed and pulled therein. Further comprised is an object holder (6) which is disposed at a suitable spacing from and generally in a position opposed to the saw blade (1) for holding an object (7) between itself and the saw blade (1) when in the pruning operation.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: November 23, 1993
    Assignee: ARS Edge Co., Ltd.
    Inventor: Shigetsugu Takigawa
  • Patent number: 4709480
    Abstract: Scissors, wherein one of the two blades is made of a metal, while at least the cutting edge portion of the other blade is made of a ceramic. The cutting edge of the metallic blade has an acute included angle, while the flat side and its adjacent side of the ceramic blade form an obtuse included angle.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: December 1, 1987
    Assignee: ARS Edge Co. Ltd.
    Inventors: Shigetsugu Takigawa, Masuhiko Takigawa
  • Patent number: D284162
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: June 10, 1986
    Assignee: Ars Hamono Seizo Kabushikikaisha
    Inventors: Shigetsugu Takigawa, Masuhiko Takigawa