Patents by Inventor Ken-ichi Baba

Ken-ichi Baba 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).

  • Process for producing artificial leather
    Patent number: 3939021
    Abstract: Artificial leather is produced by applying a dope comprising urethane prepolymers containing terminal isocyanate groups, an amine catalyst and a foam stabilizer onto a releasing carrier sheet, exposing the resulting coating layer to a moisture-containing gas under controlled conditions, laminating the coating layer onto a backing material and stripping off the releasing carrier sheet. The resulting artificial leather has a cellular structure of polyurethane microfoam in adhesion with the backing material and an adhesion strength of 100 to 10,000 g/cm of width.
    Type: Grant
    Filed: December 18, 1973
    Date of Patent: February 17, 1976
    Assignee: Toyo Cloth Co., Ltd.
    Inventors: Yoshifumi Nishibayashi, Atsushi Shimizu, Yasuhiro Shiga, Kenji Okabe, Ken-ichi Baba