Patents by Inventor Shinro Setoguchi

Shinro Setoguchi 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).

  • Thiadiazine compound with a novel crystalline form
    Patent number: 5179203
    Abstract: Novel .beta.-form crystals of 6-(3,6-dihydro-2-oxo-2H-1,3,4-thiadiazin-5-yl)-3,4-dihydro-2(1H)-quinolino ne useful as cardiotonics.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: January 12, 1993
    Assignee: Yoshitomi Pharmaceutical Industries Ltd.
    Inventors: Hideki Ao, Shinro Setoguchi, Yasuhiko Ishida
  • Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compounds and intermediates therefor
    Patent number: 5162553
    Abstract: The present invention provides an industrially valuable method for preparing an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound which is useful as a starting material for an optically active benzopyran compound with antihypertensive, coronary blood flow-increasing activities and the like, and also provides a diastereometric ester compound with a 3-halo-4-hydroxy-2H-1-benzopyran compound which is useful as an intermediate for said epoxy compound.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: November 10, 1992
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Shinro Setoguchi, Mineo Tsuruda, Chiaki Kitami, Tsutomu Yamanaka
  • Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compounds and intermediates therefor
    Patent number: 5066816
    Abstract: The present invention provides an industrially valuable method for preparing an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound which is useful as a starting material for an optically active benzopyran compound with antihypertensive, coronary blood flow-increasing activities and the like, and also provides a diastereomeric ester compound with a 3-halo-4-hydroxy-2H-1-benzopyran compound which is useful as an intermediate for said epoxy compound.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: November 19, 1991
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Shinro Setoguchi, Mineo Tsuruda, Chiaki Kitami, Tsutomu Yamanaka
  • Pyridazinone compounds
    Patent number: 4258185
    Abstract: Pyridazinone compounds of the formula: ##STR1## wherein A, B, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined hereinafter, and pharmaceutically acceptable acid addition salts thereof are disclosed. They are useful as antithrombotic and antihypertensive drugs.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: March 24, 1981
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Toru Nakao, Shinro Setoguchi, Osamu Yaoka