Patents by Inventor Toshiaki Esashika

Toshiaki Esashika 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).

  • Fishing rod and production method thereof
    Patent number: 5076004
    Abstract: The present invention relates to a fishing rod having a rod tube formed from synthetic resin-impregnated high strength fiber and to a production method thereof. The rod tube of the present fishing rod is filled with resin containing microglobules in a dispersed state. This makes a lighter and stronger fishing rod which withstands extreme deflection. The production method according to the present invention can adjust the ratio of the filled resin and the dispersed microglobules at the tip and butt portions of the rod. Accordingly, the weight, strength, and condition for each portion of the rod can be controlled as required.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: December 31, 1991
    Assignee: Daiwa Seiko, Inc.
    Inventors: Shunji Sunaga, Hiroyasu Suzue, Eiji Sugaya, Toshiaki Esashika