Patents Assigned to Koji Nakamura
  • Method for stimulating cell growth using sponge protein hydrolysates
    Patent number: 7429561
    Abstract: A method for stimulating cell growth includes administrating to a candidate a sponge protein hydrolysate which is a product by acidic hydrolysis of sponge skeleton fibers (spongin fibers) obtained from refined sponges as the raw material. The product has (i) a molecular weight of less than 5,000, with light coloring, and (ii) a human cell growth stimulating activity. The above substances can be used in the form of food product materials, pet food materials, cosmetics or medicinal products to reduce wrinkles and protect the hair cuticles.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: September 30, 2008
    Assignee: Kenji Nakamura and Koji Nakamura
    Inventors: Kenji Nakamura, Kouji Nakamura, Takeshi Okada, Tadao Miyake
  • Antibacterial cellulose fiber and production process thereof
    Patent number: 5985301
    Abstract: A production process of cellulose fiber is characterized in that tertiary amine N-oxide is used as a solvent for pulp, and a silver-based antibacterial agent and optionally magnetized mineral ore powder are added, followed by solvent-spinning. The cellulose fiber exhibits an excellent long lasting antibacterial effect and serves preferably as medical products such as bandage, gauze, and surgical robes.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: November 16, 1999
    Assignees: Kenji Nakamura, Koji Nakamura
    Inventors: Kenji Nakamura, Koji Nakamura