Patents by Inventor Tetsundo Tanabe

Tetsundo Tanabe 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).

  • Soft sword and soft rod
    Patent number: 6010435
    Abstract: A bag-shaped sword blade section having a throttled opening formed of a sealing and elastic material such as rubber is fitted onto and closely attached to a tip end of a cylindrical-shaped grip formed of a hard material such as wood, a hard rubber, plastics and metals. A gas such as air is filled in the sword blade section to define a cavity. Accordingly, a soft sword is made uniform in quality, and undergoes less degradation in quality even after an extended use.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: January 4, 2000
    Inventor: Tetsundo Tanabe