Patents by Inventor Toru Shimadu

Toru Shimadu 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).

  • Laminate base material, a method of producing the same, a prepreg and a laminate
    Patent number: 6040252
    Abstract: A laminate base material of aromatic polyamide fiber non-woven fabric which comprises a combined non-woven fabric of para-aramid fibers and meta-aramid fibers bonded with each other by a resin binder such as an epoxy resin binder and meta-aramid fibers being thermally adhered to each other and meta-aramid fibers being thermally adhered to para-aramid fibers while they are passing through a pair of thermal rolls and heated and pressed by them and the meta-aramid fibers being included preferably by 5 through 30 weight %.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: March 21, 2000
    Assignees: Shin-Kobe Electric Machinery Co., Teijin Limited, Oji Paper Co., Ltd.
    Inventors: Minoru Ootuka, Hirokazu Hiraoka, Toru Shimadu, Masayuki Noda
  • Laminate base material, a method of producing the same, a prepreg and a laminate
    Patent number: 5948543
    Abstract: A laminate base material of aromatic polyamide fiber non-woven fabric which comprises a combined non-woven fabric of para-aramid fibers and meta-aramid fibers bonded with each other by a resin binder such as an epoxy resin binder and meta-aramid fibres being thermally adhered to each other and meta-aramid fibers being thermally adhered to para-aramid fibers while they are passing through a pair of thermal rolls and heated and pressed by them and the meta-aramid fibers being included preferably by 5 through 30 weight %.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: September 7, 1999
    Assignees: Shin-Kobe Electric Machinery Co., Ltd., Teijin Limited, Oji Paper Co., Ltd.
    Inventors: Minoru Ootuka, Hirokazu Hiraoka, Toru Shimadu, Masayuki Noda