Patents by Inventor Norio Takamura

Norio Takamura 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).

  • Benzodioxole derivatives, pharmaceutical compositions and use
    Patent number: 4973600
    Abstract: Novel benzodioxole derivative of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkoxy-lower alkyl group, phenyl group or pyridyl group, R.sup.2 is hydrogen atom or a halogen atom and R.sup.3 is hydrogen atom or a lower alkyl group, and a salt thereof are disclosed.Said derivative (I) and a salt thereof have potent diuretic, saluretic and uricosuric activities.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: November 27, 1990
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Norio Takamura, Isao Inoue, Masaru Inage, Isao Yamaguchi
  • Benzodioxole derivatives, pharmaceutical compositions and use
    Patent number: 4965282
    Abstract: Novel benzodioxole derivative of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkoxy-lower alkyl group, phenyl group or pyridyl group, R.sup.2 is hydrogen atom or a halogen atom and R.sup.3 is hydrogen atom or a lower alkyl group, and a salt thereof are disclosed.Said derivative (I) and a salt thereof have potent diuretic, saluretic and uricosuric activities.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: October 23, 1990
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Norio Takamura, Isao Inoue, Masaru Inage, Isao Yamaguchi, Koji Yano
  • Phenoxyacetic acid derivatives composition and use
    Patent number: 4853404
    Abstract: Novel phenoxyacetic acid derivatives of the formula: ##STR1## wherein A is a substituted or unsubstituted 5-pyrazolyl group, R.sup.1 is hydrogen atom or a lower alkyl group, R.sup.2 is hydrogen atom or a lower alkenyl group, X is a halogen atom and Z is oxygen atom or methylene group, and salts thereof have potent diuretic, saluretic and uricosuric activities.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 1, 1989
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Norio Takamura, Kuniyuki Oda, Shinichi Kodato, Isao Yamaguchi, Koji Yano