Patents by Inventor Atushi Tamura

Atushi Tamura 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 expanded plastics with skin
    Patent number: 5366674
    Abstract: A process for producing expanded plastic with a skin and a molding apparatus therefor, the process including blowing a parison being held in a closed blow mold to obtain a hollow article, filling the hollow article with thermoplastic preexpanded resin beads before the hollow article is cooled to solidify, heating and fusing said beads, and cooling the expanded plastic. A hollow article and an expanded body are completely fused together, and improved productivity is obtained.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: November 22, 1994
    Assignees: Aronkasei Co., Ltd., Mitsubishi Yuka Badische Co., Ltd., Sanko Sogyo Co., Ltd.
    Inventors: Kazuhide Hattori, Hiroyuki Yamaji, Yoshikazu Hatakeyama, Yoshiyuki Shida, Atushi Tamura, Takumi Kitaoka, Takashi Kohama