Patents by Inventor Jun'ichi Shoji

Jun'ichi Shoji 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).

  • Antibiotics plusbacin
    Patent number: 5171836
    Abstract: This invention provides a novel compound of the formula: ##STR1## wherein X is L-HyPro or L-Pro, R is --CH.sub.3 or --CH(CH.sub.3).sub.2, and n is an integer from 9 to 12, or its salt, a process for producing the compound which comprises cultivating a microorganism which belongs to the genus Pseudomonas and produces the compound in a medium and recovering the compound from the medium and a biologically pure culture of Pseudomas sp. PB-6250 producing the compound.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: December 15, 1992
    Assignee: Shionogi & Co., Ltd.
    Inventors: Tadashi Yoshida, Jun'ichi Shoji, Teruo Hattori, Koichi Matsumoto
  • Phospholipase A2 inhibitor
    Patent number: 5011952
    Abstract: A compound of the formula: ##STR1## wherein the wave line means .alpha.-bond or .beta.-bond, which compound is useful as a phospholipase A.sub.2 inhibitor. Process for the production of the compound, pharmaceutical composition containing the compound, and a cell culture of a microorganism Thielavia terricola RF-143 producing the compound are also provided.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: April 30, 1991
    Assignee: Shionogi & Co., Ltd.
    Inventors: Tadashi Yoshida, Keizo Inoue, Hitoshi Arita, Shigeru Matsutani, Jun'ichi Shoji, Yoshimi Kawamura
  • Antibiotic PA-39504-X.sub.1 and production thereof
    Patent number: 4456686
    Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.1 of the formula: ##STR1## being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and recovering PA-39504-X.sub.1 from the cultured broth.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: June 26, 1984
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
  • Antibiotic PA-39504-X.sub.3 and production thereof
    Patent number: 4387052
    Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.3 of the formula: ##STR1## and the pharmaceutically acceptable slats being useful as a drug, a animal drug and a disinfectant for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and isolating PA-39504-X.sub.3 from the cultured broth.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: June 7, 1983
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
  • Antibiotic PA-39504-X.sub.1 and production thereof
    Patent number: 4362665
    Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.1 of the formula: ##STR1## being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and recovering PA-39504-X.sub.1 from the cultured broth.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: December 7, 1982
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
  • Antibiotic PA-31088-IV and production thereof
    Patent number: 4292241
    Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-31088-IV, being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative phathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces tokunonensis sp. nov. in a suitable medium and recovering PA-31088-IV from the cultured broth.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: September 29, 1981
    Assignee: Shionogi & Co., Ltd.
    Inventors: Kentaro Tanaka, Jun'ichi Shoji, Yoshimi Kawamura, Teruo Hattori, Eiji Kondo, Kouichi Matsumoto, Tadashi Yoshida, Naoki Tsuji
  • Process for preparing cephamycin C
    Patent number: 4256835
    Abstract: A novel process for preparing cephamycin C known antibiotic being useful as a medicament and veterinary drug, characterized by cultivating Streptomyces todorominensis sp. nov. in a suitable medium and recovering cephamycin C from the fermentation broth.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: March 17, 1981
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yoshimi Kawamura, Jun'ichi Shoji, Kouichi Matsumoto
  • Antibiotic 342-14-I and production thereof
    Patent number: 3969501
    Abstract: A new antibiotic, 342-14-I, bein useful as a medicament and veterinary drug for inhibiting the growth of gram-positive pathogenic microorganism, and a process for preparing the same, being characterized by cultivating a 342-14-I-producing strain of microorganism belonging to the Genus Bacillus in an aqueous nutrient medium under aerobic conditions.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: July 13, 1976
    Assignee: Shionogi & Co., Ltd.
    Inventors: Jun'ichi Shoji, Mikao Mayama, Shinzo Matsuura, Kouichi Matsumoto, Yoshiharu Wakisaka