Patents by Inventor Satoshi Kiyohara

Satoshi Kiyohara 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).

  • Processes of selectively separating and purifying eicosapentaenoic and docoshexaenoic acids or their esters
    Patent number: 6313330
    Abstract: A process of selectively separating and purifying eicosapentaenoic and docosahexaenoic acids or the esters thereof from a mixture comprising a highly unsaturated fatty acid or the derivative thereof, which comprises the steps of: flowing an aqueous medium comprising a silver salt through a column filled with a diatomaceous earth to carry the silver salt on the diatomaceous earth; flowing a solvent solution of a mixture comprising the highly unsaturated fatty acid or the derivative thereof through the silver salt-carried diatomaceous earth in the column; and flowing a developing solvent through the column.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: November 6, 2001
    Assignee: Nisshin Pharma Inc.
    Inventors: Satoshi Kiyohara, Shiro Fujita
  • Modified fish oil type material containing highly unsaturated fatty acid and/or esters thereof, and a composition containing said material
    Patent number: 6235331
    Abstract: An improved modified fish oil type material which does not generate special fish oil offensive odor after long term preservation and does not generate offensive odor by heating, that is, superior at preservation stability and heat stability, a fish oil type composition containing said material, a method for preparation thereof, an emulsion prepared using said material and composition and foods and cosmetics containing said material, composition or emulsion.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 22, 2001
    Assignees: Nisshin Flour Milling Co Ltd, Kenko Corporation
    Inventors: Hisashi Kataoka, Satoshi Kiyohara