Patents by Inventor Haruo Seto

Haruo Seto 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).

  • Nuclear magnetic resonance spectroscopy
    Patent number: 4689561
    Abstract: The present invention provides a nuclear magnetic resonance spectroscopy that permits one to see changes in spectra without the use of long-range coupling even if the obtained resonance lines split into complex multiplet patterns.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: August 25, 1987
    Assignee: JEOL Ltd.
    Inventors: Haruo Seto, Kazuo Furihata, Muneki Ohuchi
  • Mycotrienin-related compounds
    Patent number: 4649135
    Abstract: Mycotrienin-related compounds called the T-23-X, -XI, -XII, -XIII and -XIV. These compounds are isolated and characterized by structural formula and other identifying data. They are useful in the treatment of tumors.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: March 10, 1987
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Noboru Otake, Haruo Seto, Tetsuo Sasaki, Masanori Sugita, Shigeru Hiramoto
  • Mycotrienin-related compounds
    Patent number: 4587237
    Abstract: Mycotrienin-related compounds called the T-23-VIII and T-23-IX substances. These substances are isolated and characterized by structural formula and other identifying data. These substances are useful in the treatment of tumors.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: May 6, 1986
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Noboru Otake, Haruo Seto, Tetsuo Sasaki, Masanori Sugita, Shigeru Hiramoto
  • Ansatrienols
    Patent number: 4521339
    Abstract: The disclosure describes a microbiological process for the preparation of mycotrien-related compounds.The compounds are isolated and characterized by structural formula and other identifying data.The compounds are useful in the treatment of tumors.
    Type: Grant
    Filed: November 24, 1982
    Date of Patent: June 4, 1985
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Noboru Otake, Haruo Seto, Tetsuo Sasaki, Masanori Sugita, Yohei Natori, Noriyoshi Sueda
  • 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