Patents by Inventor Kiyoshi Tanada

Kiyoshi Tanada 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).

  • Process for producing a resin product having a bent hollow portion and a core usable for the same process
    Patent number: 5176866
    Abstract: A core for producing a molded resin product having a bent hollow portion, including two-forked and multi-forked products used as parts for automobiles, and a process for producing the aforesaid resin product having a bent hollow portion by using said core.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: January 5, 1993
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Yuji Tanaka, Kiyoshi Tanada