Patents by Inventor Tamanosuke Ohara

Tamanosuke Ohara 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).

  • Hollow strings containing gelatinous oil
    Patent number: 4344279
    Abstract: An improved hollow string comprising a hollow core containing gelatinous oil and a wrapping thread, which is used for rackets for ball games, such as tennis, squash, badminton, etc., and into the hollow cavity of which there is charged gelatinous oil of high viscosity which is in a state of gel at normal temperature and has a melting point of 30.degree. C. or higher and fluidity at a temperature of 50.degree. C. or higher.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: August 17, 1982
    Inventor: Tamanosuke Ohara