Patents by Inventor Toji Kamiya

Toji Kamiya 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).

  • Moisture-permeable waterproof fabric
    Patent number: 4539255
    Abstract: The moisture-permeable waterproof fabric according to the invention comprises a polyamino acid modified polyurethane film having a thickness of 2 to 20 microns and a fabric bonded on the polyurethane film by a polyurethane adhesive in an amount of at least 10 g/m.sup.2. The polyamino acid modification ratio of the polyurethane film is within the range of 2 to 20%. The total amount of the adhesive and the polyurethane film is not more than 50 g/m.sup.2.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: September 3, 1985
    Assignee: Kanebo Ltd.
    Inventors: Keishi Sato, Takeshi Nishida, Toji Kamiya, Yutaka Tanaka