Patents by Inventor Akio Torikata

Akio Torikata 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).

  • Thiomarinol compounds
    Patent number: 5399711
    Abstract: Two thiomarinol derivatives, which have antibacterial and anti-mycoplasmal properties, are obtainable from microorganisms of the genus Alteromonas and are named "thiomarinol B" and "thiomarinol C". Thiomarinol B can also be prepared by the oxidation of thiomarinol.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: March 21, 1995
    Assignee: Sankyo Company, Limited
    Inventors: Shuji Takahashi, Hideyuki Shiozawa, Katsumi Fujimoto, Yuji Iwano, Koichi Hirai, Akio Torikata, Takeshi Kagasaki, Kaneo Ogawa, Yoshiharu Sakaida, Kentaro Kodama, Akira Ishii
  • Process for the production of an imidazoledione compound by a strain of Streptomyces hygroscopicus
    Patent number: 5064760
    Abstract: A new compound, named Substance No. 51262, may be produced by cultivating a suitable microorganism of the genus Streptomyces, especially the new strain SANK 63584 (FERM BP-958). Said compound has herbicidal and growth retardant properties.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: November 12, 1991
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Mutsuo Nakajima, Akio Torikata, Takao Okazaki, Manbu Tohjigamori, Katsuhiko Kawakubo
  • Antibiotics called "chloropolysporins B and C", a process for their preparation, and their therapeutic and veterinary use
    Patent number: 5013550
    Abstract: Novel compounds, called chloropolysporins B and C, and salts thereof have antibiotic properties and would appear to be members of the class of glycopeptide antibiotics containing chlorine. They may be produced by cultivating a suitable strain of microorganism of the genus Micropolyspora, especially Micropolyspora sp. SANK 60983 (FERM BP-538). They may be combined with conventional pharmaceutically acceptable carriers or diluents for therapeutic use or incorporated into edible excipients, such as feed or water, for use as a growth-promoting agent, especially for farm animals.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: May 7, 1991
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Takao Okazaki, Akio Torikata, Mutsuo Nakajima
  • Imidazoledione compounds useful as herbicides
    Patent number: 4952234
    Abstract: A new compound, named Substance No. 51262, may be produced by cultivating a suitable microorganism of the genus Streptomyces, especially the new strain SANK 63584 (FERM BP-958). Said compound has herbicidal and growth retardant properties.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: August 28, 1990
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Mutsuo Nakajima, Akio Torikata, Takao Okazaki, Manbu Tohjigamori, Katsuhiko Kawakubo
  • Antibiotics called `chloropolysporins B and C`, a process for their preparation, and their therapeutic and veterinary use
    Patent number: 4918054
    Abstract: Novel compounds, called chloropolysporins B and C, and salts thereof have antibiotic properties and would appear to be members of the class of glycopeptide antibiotics containing chlorine. They may be produced by cultivating a suitable strain of miroorganism of the genus Micropolyspora, especially Micropolyspora sp. SANK 60983 (FERM BP-538). They may be combined with conventional pharmaceutically acceptable carriers or diluents for therapeutic use or incorporated into edible excipients, such as feed or water, for use as a growth-promoting agent, especially for farm animals.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: April 17, 1990
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Takao Okazaki, Akio Torikata, Mutsuo Nakajima, Ryuzo Enokita, Toshiaki Katayama, Seigo Iwado
  • Antibiotic called "chloropolysporin", a process for its preparation, and its therapeutic and veterinary use
    Patent number: 4557933
    Abstract: A novel compound, called chloropolysporin, has antibiotic properties and would appear to be a member of the class of glycopeptide antibiotics containing chlorine. It may be produced by cultivating a suitable strain of microorganism of the genus Micropolyspora, especially Micropolyspora sp. SANK 60983 (FERM BP-538). It may be combined with conventional pharmaceutically acceptable carriers or diluents for therapeutic use or incorporated into edible excipients, such as feed or water, for use as a growth-promoting agent, especially for farm animals.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: December 10, 1985
    Assignee: Sankyo Company Limited
    Inventors: Tatsuo Haneishi, Takao Okazaki, Akio Torikata, Mutsuo Nakajima, Ryuzou Enokita, Toshiaki Katayama, Seigo Iwado
  • Mycoplanecin derivatives and their preparation
    Patent number: 4370266
    Abstract: Mycoplanecin derivatives of formula (I): ##STR1## [wherein: R represents a hydrogen atom, an N-(.alpha.-ketobutyryl)-N-methylvalyl group or an N-(.alpha.-hydroxybutyryl)-N-methylvalyl group;R.sup.1 represents a methyl group or an ethyl group; andwhen R.sup.1 represents a methyl group, R.sup.2 represents an isobutyl group and, when R.sup.1 represents an ethyl group, R.sup.2 represents a pentyl group] have antibacterial activity which is particularly pronounced against bacteria of the genus Mycobacterium. The compounds in which R represents and N-(.alpha.-ketobutyryl)-N-methylvalyl group, named Mycoplanecin B (R.sup.1 represents a methyl group) and Mycoplanecin C (R.sup.1 represents an ethyl group), may be prepared by cultivation of a microorganism of the genus Actinoplanes, while the compounds where R represents an N-(.alpha.-hydroxybutyryl)-N-methylvalyl group or a hydrogen atom can be prepared by reducing the corresponding compound where R represents an N-(.alpha.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: January 25, 1983
    Assignee: Sankyo Company, Limited
    Inventors: Mamoru Arai, Tatsuo Haneishi, Mutsuo Nakajima, Akio Torikata, Ryuzo Enokita
  • Antibiotic substance
    Patent number: 4336249
    Abstract: A novel antibiotic substance, named "Mycoplanecin", of presently unknown structural formula, is produced by cultivating a Mycoplanecin-producing microorganism of the genus Actinoplanes, especially the Actinoplanes nov. sp. Strain No. 41042, NRRL No. 11462.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: June 22, 1982
    Assignee: Sankyo Company Limited
    Inventors: Mamoru Arai, Akio Torikata, Ryuzou Enokita, Tatsuo Haneishi, Mutsuo Nakajima
  • Antibiotic substance
    Patent number: 4332902
    Abstract: A novel antibiotic substance, named "Mycoplanecin", of presently unknown structural formula, is produced by cultivating a Mycoplanecin-producing microorganism of the genus Actinoplanes, especially the Actinoplanes nov. sp. Strain No. 41042, NRRL No. 11462.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: June 1, 1982
    Assignee: Sankyo Company Limited
    Inventors: Mamoru Arai, Akio Torikata, Ryuzou Enokita, Tatsuo Haneishi, Mutsuo Nakajima
  • New antibiotic substance, its preparation and its use as growth promoting agents
    Patent number: 3949070
    Abstract: Antibiotic substance named "Pholipomycin" which is useful as a growth promoting agent for domestic animals, poultries and the like and produced by the cultivation of a new microorganism, Streptomyces lividoclavatus strain No. 3176, NRRL 8022.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: April 6, 1976
    Assignee: Sankyo Company Limited
    Inventors: Mamoru Arai, Akio Torikata, Hisayoshi Fukatsu, Noritoshi Kitano, Toshiaki Matsuzawa