Patents by Inventor Tsutomu Sogo

Tsutomu Sogo 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: 7514244
    Abstract: A process for preparing lipids which contain docosahexaenoic acid (DHA) and/or docosapentaenoic acid (DPA) is disclosed. The process includes the steps of cultivating in a medium a microorganism which belongs to the genus Ulkenia having the ability to produce DHA and/or DPA and recovering the lipids from the culture. The process may further include the step of separating DHA and/or DPA from the lipids.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: April 7, 2009
    Assignees: Suntory Ltd., Nagase & Co., Ltd., Nagase Chemtex Corporation
    Inventors: Satohiro Tanaka, Toshiaki Yaguchi, Sakayu Shimizu, Tsutomu Sogo, Shigeaki Fujikawa
  • Publication number: 20030161864
    Abstract: A process for preparing lipids which contain docosahexaenoic acid (DHA) and/or docosapentaenoic acid (DPA) is disclosed. The process includes the steps of cultivating in a medium a microorganism which belongs to the genus Ulkenia having the ability to produce DHA and/or DPA and recovering the lipids from the culture. The process may further include the step of separating DHA and/or DPA from the lipids.
    Type: Application
    Filed: January 13, 2003
    Publication date: August 28, 2003
    Inventors: Satohiro Tanaka, Toshiaki Yaguchi, Sakayu Shimizu, Tsutomu Sogo, Shigeaki Fujikawa
  • Patent number: 6509178
    Abstract: A process for preparing lipids which contain docosahexaenoic acid (DHA) and/or docosapentaenoic acid (DPA) is disclosed. The process includes the steps of cultivating in a medium a microorganism which belongs to the genus Ulkenia having the ability to produce DHA and/or DPA and recovering the lipids from the culture. The process may further include the step of separating DHA and/or DPA from the lipids.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: January 21, 2003
    Assignees: Suntory Ltd., Nagase & Co., Ltd., Nagase Chemtex Corporation
    Inventors: Satohiro Tanaka, Toshiaki Yaguchi, Sakayu Shimizu, Tsutomu Sogo, Shigeaki Fujikawa
  • Patent number: 3984495
    Abstract: New polymeric materials in the form of fibers and films composed of polyvinyl alcohol, polyvinyl chloride and a water-soluble amido-polymer having a portion of the polyvinyl chloride grafted thereon and which contains at least about 80 mole percent amido or methylolated amido groups. These materials possess excellent light and heat resistance.Also disclosed is a process for preparing these materials comprising adding a water-soluble catalyst and emulsifier to an aqueous solution of the amido-polymer and subjecting the mixture to emulsion polymerization with added vinyl chloride. Thereafter, polyvinyl alcohol is added as a matrix to the emulsion to make a dope which is then coagulated.CROSS REFERENCE TO RELATED APPLICATIONSThis application is a division of application Ser. No. 348,069, filed Apr. 5, 1973, now U.S. Pat. No. 3,887,676, which in turn was a continuation-in-part of application Ser. No. 230,478, filed on Feb. 29, 1972, and now abandoned, which in turn was a continuation of application Ser. No.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: October 5, 1976
    Assignee: Kohjin Co., Ltd.
    Inventors: Seizo Okamura, Tomoaki Tagawa, Kazuo Yagami, Kazuto Matsuo, Mitsuo Sakabe, Tsutomu Sogo, Mikio Korematsu, deceased