Patents by Inventor Takehisa Nakagawa

Takehisa Nakagawa 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).

  • Continuous production of copper-clad laminate
    Patent number: 4510008
    Abstract: Copper-clad laminates for printed wiring boards with almost no warpage can be produced continuously without using a solvent by continuously running a continuous, fibrous substrate, supplying partially and intermittently a solventless thermosetting resin mixture to the running substrate, laminating a copper foil at least one surface of the running substrate, pressure molding with heating the copper foil laminated substrate in a mold comprising a pair of flat plates at least one of which has projecting portions tapered to the center of the flat plate at the periphery thereof, taking off and cutting the molded laminate.
    Type: Grant
    Filed: October 6, 1982
    Date of Patent: April 9, 1985
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Ikuo Hoshi, Masami Arai, Kiyoshi Yokochi, Yasuo Miyadera, Atsushi Fujioka, Takehisa Nakagawa
  • Toaster oven
    Patent number: D292469
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: October 27, 1987
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Mitsutaka Huke, Chikako Hatta
  • Electrically heated vacuum bottle
    Patent number: D296975
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: August 2, 1988
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Mitsutaka Huke, Chikako Hatta
  • Hot plate
    Patent number: D297701
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: September 20, 1988
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Mitsutaka Huke, Chikako Hatta
  • Scale
    Patent number: D308344
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: June 5, 1990
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Keiko Matoba
  • Scale
    Patent number: D308345
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: June 5, 1990
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Keiko Matoba
  • Remote controller for scale
    Patent number: D308346
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: June 5, 1990
    Assignee: Sharp Corporation
    Inventors: Takehisa Nakagawa, Keiko Matoba, Kouji Nishida
  • Desk lamp
    Patent number: D308730
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: June 19, 1990
    Assignee: Sharp Corporation
    Inventor: Takehisa Nakagawa
  • Microwave oven
    Patent number: D390411
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: February 10, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takehisa Nakagawa