Patents by Inventor Masaru Ohbayashi

Masaru Ohbayashi 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).

  • BU-4146T antibiotic
    Patent number: 5037836
    Abstract: A novel antibiotic designated BU-4146T is produced by fermentation of Streptomyces amphibiosporus strain R310-104 (ATCC-53964). The antibiotic possesses both antifungal and antitumor activity.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: August 6, 1991
    Assignee: Bristol-Myers Squibb Company
    Inventors: Masataka Konishi, Koko Sugawara, Masaru Ohbayashi, Takeo Miyaki
  • BU-4146T antibiotic
    Patent number: 5002959
    Abstract: A novel antibiotic designated BU-4146T is produced by fermentation of Streptomyces amphibiosporus strain R310-104 (ATCC-53964). The antibiotic possesses both antifungal and antitumor activity.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: March 26, 1991
    Assignee: Bristol-Myers Squibb Company
    Inventors: Masataka Konishi, Koko Sugawara, Masaru Ohbayashi, Takeo Miyaki
  • BU-3839T antibiotic
    Patent number: 5001058
    Abstract: A new antibiotic having the chromophore structure of the plurmycin family of antibiotics is produced by fermentation of Streptomyces violaceus ATCC 53807. The new antibiotic designated BU-3839T, exhibits potent antibacterial activity and also inhibits the growth of tumors in experimental animal systems.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: March 19, 1991
    Assignee: Bristol-Myers Company
    Inventors: Masataka Konishi, Keiko Shimizu, Masaru Ohbayashi, Koji Tomita, Takeo Miyaki, Toshikazu Oki
  • Biological pure culture of Streptomyces violaceus ATCC 53807
    Patent number: 4992376
    Abstract: An new antibiotic having the chromophore structure of the pluramycin family of antibiotics is produced by fermentation of Streptomyces violaceus ATCC 53807. The new antibiotic designated BU-3839T, exhibits potent antibacterial activity and also inhibits the growth of tumors in experimental animal systems.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: February 12, 1991
    Assignee: Bristol-Myers Company
    Inventors: Masataka Konishi, Keiko Shimizu, Masaru Ohbayashi, Koji Tomita, Takeo Miyaki, Toshikazu Oki
  • BU-3839T antibiotic
    Patent number: 4927848
    Abstract: A new antibiotic having the chromophore structure of the pluramycin family of antibiotics is produced by fermentation of Streptomyces ciolaceus ATCC 53807. The new antibiotic designated BU-3839T, exhibits potent antibacterial activity and also inhibits the growth of tumors in experimental animal systems.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: May 22, 1990
    Assignee: Bristol-Myers Company
    Inventors: Masataka Konishi, Keiko Shimizu, Masaru Ohbayashi, Koji Tomita, Takeo Miyaki, Toshikazu Oki
  • Biologically pure culture of the microorganism Streptomycas tropolofaciens used for producing 3,7-dihydroxytropolone and antitumor use
    Patent number: 4883758
    Abstract: The compound 3,7-dihydroxytropolone having the formula ##STR1## is produced by fermentation of Streptomyces tropolofaciens and is found to inhibit the growth of mammalian tumors.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: November 28, 1989
    Assignee: Bristol-Myers Company
    Inventors: Hideo Kamei, Masaru Ohbayashi, Koji Tomita, Koko Sugawara, Masataka Konishi
  • Process for producing 3,7-dihydroxytropolone and antitumor use thereof
    Patent number: 4833079
    Abstract: The compound 3,7-dihydroxytropolone having the formula ##STR1## is produced by fermentation of Streptomyces tropolofaciens and is found to inhibit the growth of mammalian tumors.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: May 23, 1989
    Assignee: Bristol-Myers Company
    Inventors: Hideo Kamei, Masaru Ohbayashi, Koji Tomita, Koko Sugawara, Masataka Konishi