Patents by Inventor Kiyohiro Kitagawa

Kiyohiro Kitagawa 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 a glycolipid having a high eicosapentaenoic acid content
    Patent number: 5077202
    Abstract: A process for producing a glycolipid having a high eicosapentaenoic acid (EPA) content is provided, which process comprises fractionating the whole lipids of marine chlorella by means of a combination of solvent-fractionation with column chromatography, which glycolipid has platelet agglutination-inhibiting effect, serum cholesterol-increase-inhibiting effect, etc. of EPA and also having a higher absorption rate in intestinal canal than EPA triglyceride or ethyl ester.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: December 31, 1991
    Assignee: Nisshin Oil Mills, Ltd.
    Inventors: Akira Seto, Kiyohiro Kitagawa, Shoko Yamashita, Tadasu Fujita
  • Feeds for larvae of crustaceons and shellfish
    Patent number: 4931291
    Abstract: Feeds comprising unicellular algaes whose cell wall are disrupted are provided as the feeds for larvae of crustaceans and shellfishes to be cultivated. With such feeds, it is possible to achieve the rates of survival and growth equivalent to, or higher than, those achieved with untreated diatom.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: June 5, 1990
    Assignee: The Nisshin Oil Mills, Ltd.
    Inventors: Eiji Kojima, Kiyohiro Kitagawa, Akira Seto
  • Feedstuff for artemia
    Patent number: 4906479
    Abstract: A feedstuff for cultivating Artemia as a feedstuff for larvae of cultivated fishes or crustaceans is provided, which feedstuff for cultivation is a product obtained by treatment of breaking the cell wall of monocellular algae, the thus obtained Artemia having a high survival rate, the body length thereof being large and the content of eisacopentaenoic acid and docosahexaenoic acid in the total fatty acids therein being much higher than those of conventional feedstuffs.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: March 6, 1990
    Assignee: The Nisshin Oil Mills, Ltd.
    Inventors: Kiyohiro Kitagawa, Eiji Kojima, Akira Seto, Shuichi Sakamoto, Takuji Nozawa