Patents by Inventor Kunio Tsugami

Kunio Tsugami 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).

  • Cover structure for electric circular saw
    Patent number: 5537748
    Abstract: A cut waste discharging device for a circular saw blade of an electric power circular saw machine, which includes: a safety cover for covering an upper portion of the circular saw blade; a lower guard which is angularly movable into the safety cover in accordance with development of a cutting operation of a workpiece with the circular saw blade; and a partition wall provided along an inner peripheral wall of the safety cover so as not to interfere with the lower guard, thereby defining a passage of cut waste with the outer wall of the partition wall and the inner peripheral wall of the safety cover. With such an arrangement, the passage between the outer wall of the partition and the inner wall of the safety cover causes the cut waste, generated in the waste generating portion, to be led to a predetermined discharge place. Accordingly, the waste would not be splash within the safety cover and would not be splashed out of the predetermined discharge place.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: July 23, 1996
    Assignee: Ryobi Limited
    Inventors: Shoji Takahashi, Kunio Tsugami, Tatsuya Wada
  • Table saw
    Patent number: 5293802
    Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: March 15, 1994
    Assignee: Ryobi Limited
    Inventors: Takeshi Shiotani, Kouichi Miyamoto, Kunio Tsugami, Mitsumasa Sato, Tatsuya Wada
  • Table saw
    Patent number: 5282408
    Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: February 1, 1994
    Assignee: Ryobi Limited
    Inventors: Takeshi Shiotani, Kouichi Miyamoto, Kunio Tsugami, Mitsumasa Sato, Tatsuya Wada
  • Table saw
    Patent number: 5230269
    Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: July 27, 1993
    Assignee: Ryobi Limited
    Inventors: Takeshi Shiotani, Kouichi Miyamoto, Kunio Tsugami, Mitsumasa Sato, Tatsuya Wada
  • Table saw
    Patent number: 5116249
    Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: May 26, 1992
    Assignee: Ryobi Limited
    Inventors: Takeshi Shiotani, Kouichi Miyamoto, Kunio Tsugami, Mitsumasa Sato, Tatsuya Wada