Patents by Inventor Chuji Inukai

Chuji Inukai 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).

  • Polyamide-imide fibers for a bag filter
    Patent number: 5681656
    Abstract: The present invention provides polyamide-imide fibers for a bag filter comprising a polyamide-imide resin produced by reacting an isocyanate component and an acid anhydride component, the isocyanate component comprising 4,4'-diphenylmethane diisocyanate in an amount of at least 60 mol % of the isocyanate component.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: October 28, 1997
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Chuji Inukai, Tomoharu Kurita, Keiichi Uno