Patents by Inventor Shigeru Kurumatani

Shigeru Kurumatani 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).

  • Nonwoven fabric for eletrical insulation, prepreg and laminate
    Publication number: 20040033746
    Abstract: An electrically insulating non-woven fabric having a main component of poly-p-phenileneterephthalamide fibers bonded with each other by a binder of thermosetting resin and a second binder of one selected from fiber chops, fiber pulps and fibrids of thermoplastic resin having a softening point of 220° C. or higher, the poly-p-phenileneterephthalamide fibers being pulps or both of chops and pulps with a blend mass ratio of the chops to the pulps being 0/100 through 95/5 and preferably 50/50 through 90/10, a fiber length of the poly-p-phenileneterephathalamide fiber chops being preferably 3 to 6 mm, a content of the thermosetting resin binder in the non-woven fabric being 5 to 30 mass % and a content of the second binder being is 5 to 15 mass %.
    Type: Application
    Filed: March 14, 2003
    Publication date: February 19, 2004
    Inventors: Shigeru Kurumatani, Manabu Ochida, Hirokazu Hiraoka
  • Electrically insulating non-woven fabric, a prepreg and a laminate
    Patent number: 6566288
    Abstract: A non-woven fabric comprising a principal component of para-aramid fiber chops bonded with each other by a binder, the para-aramid fiber chops having a mixture of (a) poly-p-phenylene-3,4′-diphenylether-terephthalamide fibers and (b) poly-p-phenylene-terephthalamide fibers and having a blend ratio by weight of (a)/(b)=10/90˜90/10 and preferably (a)/(b)=30/70˜70/30.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: May 20, 2003
    Assignees: Shin-Kobe Electric Machinery Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Shigeru Kurumatani, Hirokazu Hiraoka, Masayuki Noda, Tomoyuki Terao, Setsuo Toyoshima, Yoshihisa Kato, Hiroyoshi Ueno
  • Electrically insulating non-woven fabric, a prepreg and a laminate
    Patent number: 6426310
    Abstract: A non-woven fabric comprising a principal component of para-aramid fiber chops bonded with each other by a binder, the para-aramid fiber chops having a mixture of (a) poly-p-phenylene-3,4′-diphenylether-terephthalamide fibers and (b) poly-p-phenylene-terephthalamide fibers and having a blend ratio by weight of (a)/(b)=10/90˜90/10 and preferably (a)/(b)=30/70˜70/30.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: July 30, 2002
    Assignees: Shin-Kobe Electric Machinery Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Shigeru Kurumatani, Hirokazu Hiraoka, Masayuki Noda, Tomoyuki Terao, Setsuo Toyoshima, Yoshihisa Kato, Hiroyoshi Ueno
  • Electrically insulating non-woven fabric, a prepreg and a laminate
    Publication number: 20010006868
    Abstract: A non-woven fabric comprising a principal component of para-aramid fiber chops bonded with each other by a binder, the para-aramid fiber chops having a mixture of (a) poly-p-phenylene-3,4′-diphenylether-terephthalamide fibers and (b) poly-p-phenylene-terephthalamide fibers and having a blend ratio by weight of (a)/(b)=10/90˜90/10 and preferably (a)/(b)=30/70˜70/30.
    Type: Application
    Filed: February 6, 2001
    Publication date: July 5, 2001
    Inventors: Shigeru Kurumatani, Hirokazu Hiraoka, Masayuki Noda, Tomoyuki Terao, Setsuo Toyoshima, Yoshihisa Kato, Hiroyoshi Ueno