Patents by Inventor Minoru Isshiki

Minoru Isshiki 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 process for producing reinforced resin laminates
    Patent number: 4994133
    Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: February 19, 1991
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masayuki Oizumi, Masakazu Uekira, Masana Goto, Ichiro Azumi, Shoji Uozumi, Masaharu Abe, Yasuo Fushiki, Minoru Isshiki, Kunio Kawasaki
  • Glass fiber-reinforced electrical laminates and a continuous production method therefor
    Patent number: 4803115
    Abstract: There is provided an electrical laminate comprising a cured assemblage of a plurality of glass fiber type substrates impregnated with a curable resin composition containing (a) a halogenated bisphenol type unsaturated polyester resin and (b) an epoxy acrylate resin which may optionally be halogen-containing. This laminate features high dimensional stability, improved through-hole reliability, and excellent mechanical strength. A continuous production method for laminates is also described.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: February 7, 1989
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yasuo Fushiki, Minoru Isshiki, Hiroshi Nakano, Masayuki Oizumi, Masayoshi Shimomura, Keiji Imajo
  • Continuous process for preparing reinforced resin laminates
    Patent number: 4662973
    Abstract: A continuous process for producing reinforced resin laminates is disclosed. A plurality of fibrous substrate is continuously and sequentially subjected to the steps of (a) impregnating with resin, (b) laminating into a unitary member, (c) sandwiching between a pair of covering sheet, at least one of which is a cladding metal foil, and (d) curing the resin while supporting between said covering sheets without applying pressure on the laminate surface.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: May 5, 1987
    Assignee: Kanegufuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masana Gotou, Minoru Isshiki, Shoji Uozumi, Masayuki Ohizumi, Yasuo Fushiki
  • Continuous process for producing reinforced resin laminates
    Patent number: 4571279
    Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: February 18, 1986
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masayuki Oizumi, Masakazu Uekita, Masana Goto, Ichiro Azumi, Shoji Uozumi, Masaharu Abe, Yasuo Fushiki, Minoru Isshiki, Kunio Kawasaki
  • Continuous process for producing reinforced resin laminates
    Patent number: 4451317
    Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: May 29, 1984
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masayuki Oizumi, Masakazu Uekita, Masana Goto, Ichiro Azumi, Shoji Uozumi, Masaharu Abe, Yasuo Fushiki, Minoru Isshiki, Kunio Kawasaki
  • Continuous process for producing reinforced resin laminates
    Patent number: 4372800
    Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: February 8, 1983
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masayuki Oizumi, Masakazu Uekita, Masana Goto, Ichiro Azumi, Shoji Uozumi, Masaharu Abe, Yasuo Fushiki, Minoru Isshiki, Kunio Kawasaki