Patents by Inventor Hideo Tsutumi

Hideo Tsutumi 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).

  • Pyridazinone compound and pharmaceutical use thereof
    Publication number: 20040067955
    Abstract: A pyridazinone or pyridone compound of the following formula (I).
    Type: Application
    Filed: September 3, 2003
    Publication date: April 8, 2004
    Applicant: Fujisawa Pharmaceutical Co. Ltd.
    Inventors: Seiichiro Tabuchi, Hideo Tsutumi, Atsushi Akahane, Yoshinari Sato
  • Intermediates for the preparation of compounds of antimicrobial activity
    Patent number: 5194624
    Abstract: The invention relates to compounds of the formula: ##STR1## in which R.sup.4 is an unsaturated, 5 or 6-membered heteromonocyclic group,R.sup.5 is hydrogen, lower alkanimidoyl or imino-protective group,R.sup.7 is ar(lower)alkyl or acyl derived from a carboxylic, carbonic, sulfonic or carbamic acid, andA is lower alkylene,or a salt thereof, useful as intermediates in the preparation of antimicrobial agents.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: March 16, 1993
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masayoshi Murata, Hideo Tsutumi, Keiji Matsuda, Kohji Hattori, Takashi Nakajima