Patents by Inventor Shigeo Ogino

Shigeo Ogino 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).

  • Protease inhibitors
    Patent number: 4206283
    Abstract: Novel procidins effective for healing or preventing ulcers are produced and accumulated in the cultured product of a novel strain Streptomyces procidinanus.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: June 3, 1980
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinichi Kojima, Kazuro Nakamura, Ten Koide, Shigeo Ogino
  • Process for purifying urokinase
    Patent number: 4189350
    Abstract: A process for purifying urokinase by contacting a crude urokinase-containing solution with a strongly acidic cation exchanger having sulfonic acid groups and adjusted to the NH.sub.4.sup.+ type to adsorb urokinase on said cation exchanger and then eluting urokinase from said exchanger, characterized in that urea is previously added to the crude urokinase-containing solution in such a rate that the final molar concentration of urea in the solution is 3 to 8 M. This process is capable of providing purified urokinase having substantially constant and high specific activity from a crude urokinase-containing solution with a high recovery regardless of purity of the crude urokinase.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: February 19, 1980
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hideki Yanagi, Yasuo Bai, Junichi Yoshikawa, Shigeo Ogino
  • Novel therapeutic application of 4-carbamoyl-5-hydroxyimidazole
    Patent number: 4181731
    Abstract: 4-Carbamoyl-5-hydroxyimidazole representable by the following formula: ##STR1## and pharmaceutically acceptable salts thereof have been found to be useful as therapeutic agents for the treatment of rheumatism and nephritis.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: January 1, 1980
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Noboru Yoshida, Takao Kiyohara, Shigeo Ogino
  • Antiviral agent
    Patent number: 4174407
    Abstract: Viral infections caused by viruses belonging to Herpes and Influenza groups can be controlled by administering an effective amount of 3-amino-4-homoisotwistane of the formula, ##STR1##
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: November 13, 1979
    Assignees: Sumitomo Chemical Company, Limited, Kao Soap Co., Ltd.
    Inventors: Masaru Fukui, Shigeo Ogino, Hisao Yamamoto
  • Purification of urokinase
    Patent number: 4147592
    Abstract: A process for purifying urokinase which comprises contacting a crude aqueous solution of urokinase with an ionic pullulan gel and thereafter separating and recovering an aqueous solution of urokinase devoid of harmful impurities.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: April 3, 1979
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Yasuo Bai, Hideki Yanagi, Junichi Yoshikawa, Shigeo Ogino
  • Protease inhibitors
    Patent number: 4091093
    Abstract: Novel procidins effective for healing or preventing ulcer are produced and accumulated in the cultured product of a novel strain Streptomyces procidinanus.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: May 23, 1978
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Shinichi Kojima, Kazuro Nakamura, Ten Koide, Shigeo Ogino