Patents by Inventor Toshikatsu Hakuta

Toshikatsu Hakuta 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).

  • Patent number: 4857329
    Abstract: Lipids containing gamma-linolenic acid are extracted from cells of Mortierella genus fungi by first grinding the cells in the presence or absence of a hot alcoholic solvent, and then extracting the alcohol-treated ground cells with a solvent in a supercritical state, or a mixture of a solvent in a supercritical state with a lower aliphatic alcohol or a lower aliphatic hydrocarbon.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: August 15, 1989
    Assignee: Agency of Industrial Science & Technology
    Inventors: Takeshi Sako, Toshihiro Yokochi, Masahito Sato, Osamu Suzuki, Toshikatsu Hakuta, Tsutomu Sugeta, Noriaki Nakazawa