Patents by Inventor Masayuki Okuzawa

Masayuki Okuzawa 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).

  • Fiber board
    Patent number: 7157138
    Abstract: A fiber board, comprising: kenaf fibers having an average length of 10 to 200 mm and an average diameter of 10 to 300 ?m, and a thermosetting adhesive agent, the fiber board having a density of 600 to 900 kg/m3, being excellent in strength and moisture permeability.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: January 2, 2007
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kenji Ohnishi, Masayuki Okuzawa, Yuzo Okudaira, Hideyuki Ando, Kazunori Umeoka, Ryo Sugawara, Bunkai Ryu
  • Method of producing a fiber board
    Patent number: 7045027
    Abstract: The present invention relates to a method of producing a fiber board characterized in that it comprises the following processes (a)–(f): (a) a separating process of a bast portion, (b) a fiberizing process by defibrating the bast portion of the kenaf, (c) a preparing process of a mat comprising the kenaf fibers having an average length of 10–200 mm and an average diameter of 10–300 ?m, (d) a supplying process of an adhesive agent into the fiber mat, (e) a drying process of the adhesive agent, and (f) a molding process by heating said fiber mat under pressure to form a fiber board having a density of 600–900 kg/m3.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: May 16, 2006
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masayuki Okuzawa, Kenji Ohnishi, Yuzo Okudaira, Hideyuki Ando, Kazunori Umeoka, Bunkai Ryu, Shigeki Naito, Ryo Sugawara
  • Fiber board
    Publication number: 20040224140
    Abstract: A fiber board, comprising:
    Type: Application
    Filed: January 15, 2004
    Publication date: November 11, 2004
    Inventors: Kenji Ohnishi, Masayuki Okuzawa, Yuzo Okudaira, Hideyuki Ando, Kazunori Umeoka, Ryo Sugawara, Bunkai Ryu
  • Method of producing a fiber board
    Publication number: 20040187998
    Abstract: The present invention relates to a method of producing a fiber board characterized in that it comprises the following processes (a)-(f):
    Type: Application
    Filed: January 15, 2004
    Publication date: September 30, 2004
    Inventors: Masayuki Okuzawa, Kenji Ohnishi, Yuzo Okudaira, Hideyuki Ando, Kazunori Umeoka, Bunkai Ryu, Shigeki Naito, Ryo Sugawara
  • Vibration-controlling member
    Patent number: 4923034
    Abstract: A vibration-controlling member is made by containing a flake-shaped powdery substance having vibration controlling action in a retainer adhered to one surface of a surface sheet. Any external shock imparted to the member is subjected to the vibration controlling action due to a grain boundary friction of the powdery substance.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: May 8, 1990
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masayuki Okuzawa, Yuza Okudaira, Futoshi Maeda