Patents by Inventor Koichi Karukaya

Koichi Karukaya 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).

  • Polyolefin article and methods for manufacture thereof
    Publication number: 20020020492
    Abstract: A polyolefin article is provided which exhibits excellent levels of mechanical strength and dimensional stability to temperature while not incorporating a dissimilar reinforcing material, such as a glass fiber, and which can be readily manufactured. Methods for manufacture of the polyolefin article are also provided.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 21, 2002
    Applicant: Sekisui Chemical Co., Ltd.
    Inventors: Masanori Nakamura, Koichi Karukaya, Kazuhiro Noguchi, Satoru Yamamoto
  • Expandable synthetic resin composition, synthetic resin foams, and methods for manufacturing synthetic resin foams
    Patent number: 6300386
    Abstract: An expandable synthetic resin composition capable of providing a synthetic resin foam excellent in both heat distortion resistance and mechanical strength, as well as such a synthetic resin foam, are provided. An expandable synthetic resin composition incorporating a thermoplastic resin, a liquid crystal resin and a heat-decomposable foaming agent, as well as a synthetic resin foam which incorporates a thermoplastic resin and a liquid crystal resin dispersed in the thermoplastic resin and exhibits an expansion ratio of 1.1-50, are provided.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: October 9, 2001
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Koichi Karukaya, Kenji Miyazaki, Koshi Kawabata
  • Undercoat composition
    Patent number: 5178958
    Abstract: An undercoat composition for a powder coating of a heat-resistant resin on a metal substrate at a high coating temperature wherein the composition includes a specific imide prepolymer.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: January 12, 1993
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshimi Inai, Naofumi Imahigashi, Koichi Karukaya, Koji Motoi
  • Undercoat composition and a metal substrate coated with a resin composition
    Patent number: 5041335
    Abstract: There are provided an undercoat composition with excellent adhesiveness to both a resin coating layer and a metal layer, and a metal substrate coated with a resin composition. The undercoat composition and the resin-coated metal substrate offer excellent hot-water resistance and chemical resistance.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 20, 1991
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshimi Inai, Koichi Karukaya, Masao Ikeda, Kazuyoshi Yamamoto