Patents by Inventor Nobuyoshi Takai

Nobuyoshi Takai 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).

  • Blanket substrate and blanket
    Patent number: 6500776
    Abstract: A blanket substrate comprising spun yarn of polyvinyl alcohol based fibers, in which the fibers have primary ridged streaks which are formed on their surfaces in the direction of the fiber axis with finer secondary ridged steaks formed in the primary ridged streaks, the fibers having a cross-section circularity of at least 80%.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: December 31, 2002
    Assignee: Kuraray Co., Ltd.
    Inventors: Toshihiro Hamada, Nobuyoshi Takai, Kunihiro Shiraki, Tomokazu Ise
  • BLANKET SUBSTRATE AND BLANKET
    Publication number: 20020098758
    Abstract: A blanket substrate comprising spun yarn of polyvinyl alcohol based fibers, in which the fibers have primary ridged streaks which are formed on their surfaces in the direction of the fiber axis with finer secondary ridged steaks formed in the primary ridged streaks, the fibers having a cross-section circularity of at least 80%.
    Type: Application
    Filed: May 6, 1999
    Publication date: July 25, 2002
    Inventors: TOSHIHIRO HAMADA, NOBUYOSHI TAKAI, KUNIHIRO SHIRAKI, TOMOKAZU ISE