Patents by Inventor Kiyotaka Munesada

Kiyotaka Munesada 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).

  • Process for producing imidazole derivative
    Patent number: 6005105
    Abstract: The present invention is directed to a process for preparing the following compound ##STR1## which is prepared starting from ##STR2## which is reacted succesively with 4-iodobenzyl or 4-bromobenzyl bromide, hydrazine and 1,4-dimethyl-1,3-cyclohexadiene, reduced and reacted with phenyltetrazole or suitably protected phenyltetrazole followed by removal
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: December 21, 1999
    Assignee: Pharmacia & Upjohn Company
    Inventors: Hiroyoshi Yamada, Kiyotaka Munesada, Keiko Koh, Kazuo Tsuzuki, Mikio Taniguchi, Yoshiji Fujita
  • Phenyloxazolidinone antimicrobials
    Patent number: 5883093
    Abstract: The present invention relates to antimicrobial phenyloxazolidinone compounds having a pyrrolidinyl or azetidinyl moiety.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: March 16, 1999
    Assignee: Pharmacia & Upjohn Company
    Inventors: Douglas K. Hutchinson, Steven J. Brickner, Michael R. Barbachyn, Mikio Taniguchi, Kiyotaka Munesada, Hiroyoshi Yamada
  • Oxazolidinone derivatives and pharmaceutical compositions containing them
    Patent number: 5668286
    Abstract: The present invention provides agents having high antimicrobial activity for preventing and treating infectious diseases. Thus, the present invention provides novel oxazolidinone derivatives represented by chemical formula (I), or pharmaceutically acceptable salts thereof, as well as antimicrobial compositions containing said derivatives or salts thereof as active ingredients.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: September 16, 1997
    Assignee: Pharmacia & Upjohn Company
    Inventors: Hiroyoshi Yamada, Kiyotaka Munesada, Mikio Taniguchi
  • Imidazole derivatives and pharmaceutical compositions containing the same
    Patent number: 5442062
    Abstract: The present invention provides a novel imidazole derivative having the chemical formula ##STR1## These compounds are useful for preventing or treating hypertension or congestive heart failure and have high activity, rapid action upon intravenous injection, good oral absorbtion, low toxicity, and long-lasting action. Also provided are pharmaceutical compositions which contain these compounds.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: August 15, 1995
    Assignee: The Upjohn Company
    Inventors: Keiko Koh, Mikio Taniguchi, Noriie Itoh, Hiroshi Kushida, Osamu Morita, Hiroyoshi Yamada, Kiyotaka Munesada, Kazuo Tsuzuki, Mineo Kunihara, Yoshiji Fujita