Patents by Inventor Ryuichiro Kogure

Ryuichiro Kogure 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).

  • Production of via hole in a flexible printed circuit board by applying a laser or punch
    Patent number: 7918021
    Abstract: A flexible circuit printable board can be favorably produced by a process composed of steps of forming in a polyimide film having a metal coat on each surface side a via hole penetrating at least one metal coat and the polyimide film; and applying a mixture of liquid and abrasive grains under pressure onto the via hole, whereby smoothing an edge of the via hole and cleaning the via hole.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 5, 2011
    Assignee: Ube Industries, Ltd.
    Inventors: Ryuichiro Kogure, Tadahiro Yokozawa, Hiroaki Yamaguchi, Osamu Nakayama
  • Production of via hole in flexible circuit printable board
    Publication number: 20050162835
    Abstract: A flexible circuit printable board can be favorably produced by a process composed of steps of forming in a polyimide film having a metal coat on each surface side a via hole penetrating at least one metal coat and the polyimide film; and applying a mixture of liquid and abrasive grains under pressure onto the via hole, whereby smoothing an edge of the via hole and cleaning the via hole.
    Type: Application
    Filed: April 24, 2003
    Publication date: July 28, 2005
    Applicant: Ube Industires, LTD
    Inventors: Ryuichiro Kogure, Tadahiro Yokozawa, Hiroaki Yamaguchi, Osamu Nakayama
  • Battery separator and lithium secondary battery
    Patent number: 6627346
    Abstract: A battery separator favorably employable for lithium secondary battery comprises at least one porous film in which 100 to 40,000 ppm of particles of silicon dioxide, aluminum oxide, magnesium oxide, zinc oxide or metal oxides containing at least two metal elements selected from the group consisting of Si, Al, Mg and Zn having a mean diameter of 0.1 to 10 &mgr;m are dispersed in a porous resin matrix.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: September 30, 2003
    Assignee: Ube Industries, Ltd.
    Inventors: Masayuki Kinouchi, Tetsuo Akazawa, Takashi Oe, Ryuichiro Kogure, Kenji Kawabata, Yuuji Nakakita