Patents by Inventor Takumi Kitaoka

Takumi Kitaoka 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 for producing a molded foam article with an integral skin
    Patent number: 5665285
    Abstract: A molded foam article with an integral skin is produced by blow-molding a parison in a cavity of a metal mold to form a hollow member, filling the hollow member with pre-expanded thermoplastic resin besides before cooling and solidification of the hollow member, and heating the pre-expanded beads to cause the beads to expand further and fuse together. A filler for the pre-expanded thermoplastic resin beads is provided with a cutter for making a hole in the hollow member before introducing the resin beads into the hollow member.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: September 9, 1997
    Assignees: Mitsubishi Yuka Badische Co., Ltd., Sanko Sogyo Co., Ltd., Aron Kasei Co., Ltd.
    Inventors: Kazuhide Hattori, Hiroyuki Yamaji, Yoshikazu Hatakeyama, Yoshiyuki Shida, Atsushi Tamura, Takumi Kitaoka, Takashi Kohama
  • 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