Patents by Inventor Hidesuke Takeuchi

Hidesuke Takeuchi 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).

  • Method of manufacturing foamed thermoplastic resin profiles
    Patent number: 4071591
    Abstract: A method for producing foamed thermoplastic resin profiles with an outer skin layer of increased hardness and an inner foam structure which may be used in place of wooden articles. The outer skin has a smooth surface and a good appearance, and the inner portion enclosed by the skin has a uniform foam structure. Also, with this method an improved foaming efficiency can be obtained.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: January 31, 1978
    Assignee: Nippon Petrochemicals Co. Ltd.
    Inventors: Seizo Kobayashi, Toshiharu Hirayama, Takeshi Kamiya, Seiju Kezuka, Hidesuke Takeuchi