Patents by Inventor Masakatsu Wagu

Masakatsu Wagu 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).

  • Substrate for liquid chromatography and process for isolating and purifying fat-soluble substance by the liquid chromatography on the substrate
    Patent number: 4497710
    Abstract: A substrate for liquid chromatography comprising a spherical particle of highly cross-linked polymer which is produced from (a) 100 parts by weight of a monomer of vinyl ester, acrylate or methacrylate, these esters having a long alkyl chain, if desired, together with a comonomer copolymerizable with the monomer and (b) 10 to 80 parts by weight of a cross-linking agent copolymerizable with the monomer and having at least two functional groups, and a process for isolating and purifying a fat-soluble substance, for instance, a lower alkyl ester of eicosapentaenoic acid or docosahexaenoic acid by means of the liquid chromatography on the substrate.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 5, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masakatsu Wagu, Shoichiro Hayashi, Naohiro Murayama, Teruo Sakagami
  • Inclusion compound of eicosapentaenoic acid or docosahexaenoic acid with cyclodextrin
    Patent number: 4438106
    Abstract: This disclosure describes an inclusion compound of cyclodextrin in which at least one guest compound selected from the group of eicosapentaenoic acid, docosahexaenoic acid and alkali metal salts and alkyl esters thereof is included.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: March 20, 1984
    Assignee: Kureha Kagaku Kabushiki Kaisha
    Inventors: Masakatsu Wagu, Shoichiro Hayashi, Kouichi Kodama
  • Cathode for the electrolytic treatment of alkali halide
    Patent number: 4285797
    Abstract: The invention relates to cathodic electrodes for use in the electrolytic treatment of alkali halide. The electrode has a substantial mass of copper or copper alloy, and the surface of the mass is roughened and activated by blasting solid and abrasive particles against the mass surface. The roughened surface is then coated with a rhodium or rhodium alloy layer. The effect is a substantial reduction of hydrogen superpotential value.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: August 25, 1981
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masakatsu Wagu, Makoto Fukuda, Shirou Suzuki