Patents by Inventor Rikio Kuroda

Rikio Kuroda 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).

  • Laminated heating structure
    Patent number: 5945020
    Abstract: There is provided a laminated heating structure comprising a molding layer (A) made of a thermotropic liquid crystal polymer, a conductive layer (B) for heating a protective coating layer (C) by applying an electric current therethrough, and the protective coating layer (C), provided that the layers (A), (B) and (C) are laminated in this order, and an inexpensive laminated heating structure excellent in heat resistance, dimensional accuracy and mechanical strength, reduced in electric power consumption, and shortened in build-up time.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: August 31, 1999
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Rikio Kuroda, Motomi Nogiwa, Yoshiharu Ogawa, Kazunori Hosomi
  • Tubular article method for injection molding thereof
    Patent number: 5759647
    Abstract: A long tubular article characterized by having a smooth surface and a substantially uniform wall thickness in the circumferential direction and the longitudinal direction and by being produced by injection molding a thermoplastic resin and a method for the injection molding.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: June 2, 1998
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Rikio Kuroda, Sadahiro Nishimura, Akio Hashimoto
  • Muffler
    Patent number: 5107953
    Abstract: A light-weight and tough muffler having a high noise deadening effect characterized in that the outer barrel (I) of the muffler is made of a thermotropic liquid crystal polymer. An example of said polymer is a wholly polyester having monomer units represented by general formula (I): ##STR1## This polymer may contain 10 to 60 wt. % of inorganic additives such as glass fibers or carbon fibers.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: April 28, 1992
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Tetsuo Shimizu, Rikio Kuroda