Patents by Inventor Hiroshi Miyakawa

Hiroshi Miyakawa 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).

  • Lactoferrin hydrolyzate for use as an antibacterial agent and as a tyrosinase inhibition agent
    Patent number: 5214028
    Abstract: Lactoferrin hydrolyzates, having a decomposition rate between 6%-20% as measured by formol titration, for use as an antibacterial agent and which have remarkly more potent activity than unhydrolyzed lactoferrin; and lactoferrin hydrolyzates, having a decomposition rate between 4-50% as measured by formol titration, for use as a tyrosinase inhibition agent, are obtainable by conventional methods for hydrolysis with acids or enzymes, and are stable to heating.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: May 25, 1993
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Mamoru Tomita, Kouzou Kawase, Yoshitaka Tamura, Mitsunori Takase, Hiroshi Miyakawa, Koji Yamauchi, Hitoshi Saito, Hiroaki Abe, Seiichi Shimamura, Susumu Kobayashi
  • Composition of feedstuff
    Patent number: 4985246
    Abstract: A composition of feedstuff containing at least 0.5 wt. %, in solid content, of residual liquid of incubated culture broth of Bifido-bacteria and/or lactic acid bacteria which residual liquid is obtainable as the waste by-product of mass production of living or viable cell mass of the microorganisms by substantially excluding microbial cell mass from the incubated culture broth thereof.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: January 15, 1991
    Assignee: Morinaga Milk Industry Co., Ltd.
    Inventors: Shigeo Okonogi, Mamoru Tomita, Seiichi Shimamura, Toshio Tomimura, Norio Ishibashi, Hiroshi Miyakawa, Koichi Sugawara