Patents by Inventor Tatsusabu Tsukamoto

Tatsusabu Tsukamoto 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).

  • Clip
    Patent number: 5008982
    Abstract: A clip comprising outer and inner rings (11, 12) formed to protrude forwardly in the form of rings and wound together such as to form leg portions (14,20 and 15, 21) crossing one another. The leg portion (14 or 21) having at least one of the two rings having a cut end rearwardly extends at a gentle angle to the corresponding leg portion (20 or 15) of the other ring and eventually overlaps the corresponding leg portion. The clip may clip a material without bending an end thereof, and it hardly produces a trace of clipping.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: April 23, 1991
    Inventor: Tatsusabu Tsukamoto