Patents by Inventor Michio Yamagishi

Michio Yamagishi 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).

  • Antifungal agent
    Patent number: 6001864
    Abstract: An antifungal composition including an imidazole-type antifungal compound and a quaternary ammonium salt is a medicament having a far more potentiated activity of miconazole nitrate and a higher therapeutic effect, and is effective against both Trichophyton and Candida.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: December 14, 1999
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Toshi Akashi, Shigeo Tanaka, Kimiko Sugita, Hideki Kohita, Michio Yamagishi, Kiyotaka Obata
  • Method for the treatment of systemic mycosis
    Patent number: 4680311
    Abstract: Method for the treatment of systemic mycosis of mammals comprises administering (S)-2-amino-5-hydroxy-4-oxopentanoicacid in a therapeutically effective amount to said mammals suffering from mycosis, typically candidosis.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: July 14, 1987
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Naoharu Watanabe, Kazuo Numata, Michio Yamagishi, Taku Mizutani, Sadafumi Omura, Hideyo Yamaguchi
  • Novel dianemycin derivative
    Patent number: 4366311
    Abstract: A novel compound of the formula ##STR1## and the salts thereof, derived from dianemycin, are useful as antiprotozoal and antibacterial agents.
    Type: Grant
    Filed: September 18, 1981
    Date of Patent: December 28, 1982
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Taku Mizutani, Michio Yamagishi, Kazutoshi Mizoue, Akira Kawashima, Sadafumi Omura, Noboru Otake, Haruo Seto
  • Antibiotics TM-531 B and TM-531 C
    Patent number: 4359583
    Abstract: The novel antibiotics represented by the formula ##STR1## wherein either (a) R.sup.1 is hydroxy and R.sup.2 is hydrogen, or (b) R.sup.1 is methoxy and R.sup.2 is hydroxy, and the salt thereof, are produced by the cultivation of the organism Streptomyces hygroscopicus TM-531 under aerobic conditions. They are separated from coproduced Antibiotic TM-531 as disclosed in U.S. Pat. No. 4,269,971 and from each other by chromatography on silica gel.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: November 16, 1982
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Taku Mizutani, Michio Yamagishi, Kazutoshi Mizoue, Akira Kawashima, Sadafumi Omura, Noboru Otake, Haruo Seto
  • Antibiotic TM-531
    Patent number: 4269971
    Abstract: Antibiotic TM-531 having the formula: ##STR1## TM-531 is effective against gram-positive bacteria, plant pathogenic microorganisms and protozoa.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: May 26, 1981
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Michio Yamagishi, Akira Kawashima, Taku Mizutani, Hiroshi Hara, Kazutoshi Mizoue, Sadafumi Omura, Haruo Seto, Noboru Otake
  • Novel lonomycin derivatives
    Patent number: 4199515
    Abstract: Novel lonomycin derivatives, prepared by reacting lonomycin or its salt with an alkali or an alkali metal borohydride, show antibacterial, antiviral and antiprotozoal activity, and have decreased toxicity as compared with lonomycin.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: April 22, 1980
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Michio Yamagishi, Kazutoshi Mizoue, Taku Mizutani, Hiroshi Hara, Sadafumi Omura, Haruo Seto, Noboru Otake