Patents by Inventor Eiichi, deceased Yoshida

Eiichi, deceased Yoshida 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).

  • Collagen powder having good dispersion stability and use thereof as leather-like surface layer-forming agent
    Patent number: 5153067
    Abstract: Disclosed is a collagen powder having a good dispersion stability, in which the content of particles having a particle size smaller than 40 .mu.m is at least 85% by weight, the water absorption is 120 to 300%, and the apparent bulk density is 0.10 to 0.30 g/cc. This collagen powder is advantageously used for a leather-like surface layer-forming agent and a leather-like molded article.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: October 6, 1992
    Assignee: Showa Denko K.K.
    Inventors: Eiichi, deceased Yoshida, Tetsuo Wada, Mina Saito, Tetsuhiko Yamaguchi