Patents Assigned to Japan Institute of Leather Research
  • Type I-type IV collagen hybrid gel
    Patent number: 8691951
    Abstract: It is an object of the present invention to provide a Type I-Type IV collagen hybrid gel, which maintains characteristics of a Type IV collagen and is superior in gel strength. It is the Type I-Type IV collagen hybrid gel obtained by mixing 100 to 500 parts by mass of the Type I collagen having fibrosis ability, relative to 100 parts by mass of the Type IV collagen having gelling ability. A three-dimensional structure is formed, where a membrane-like substance by the Type IV collagen is formed onto a fibrous substance by the Type I collagen, so as to be able to provide cell culture environment approximate to a basement membrane of a living body.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: April 8, 2014
    Assignees: Japan Institute of Leather Research, Osaka University
    Inventors: Shunji Hattori, Yoh-ichi Koyama, Hitomi Fujisaki, Kiyotoshi Sekiguchi, Sugiko Futaki, Ryoko Sato
  • Method of treating hairs or feathers using microorganisms
    Patent number: 6440692
    Abstract: Large amounts of hairs and feathers can be decomposed and refined by treatment in an oxygen-containing gas stream with a fungus that can decompose hairs and feathers. The resulting decomposed and refined hairs and feathers are useful as a fertilizer.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: August 27, 2002
    Assignee: Japan Institute of Leather Research
    Inventors: Yoh-ichi Koyama, Koki Suzuki, Koki Ogata, Masashi Kusubata, Shinkichi Irie