Patents by Inventor Katsuhiro Igeta

Katsuhiro Igeta 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).

  • Highly water-soluble metalloproteinase inhibitors
    Patent number: 6284914
    Abstract: New compounds of general formulae (III), (IV) and (V).
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: September 4, 2001
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Junko Fujisawa, Eiko Suda, Katsuhiro Igeta, Tadanori Morikawa, Tetsunori Fujisawa, Shinjiro Odake, Yasuo Morita, Tomoko Hongo, Hajime Ito
  • Highly water-soluble metalloproteinase inhibitors
    Patent number: 6147114
    Abstract: New compounds of the general formula (I) ##STR1## (wherein R.sup.1 is a hydrogen atom, or a hydroxyl, aryl (C.sub.1 -C.sub.6)alkylene or --A--SOn--B group (A is a (C.sub.1 -C.sub.6) alkylene group; B is a (C.sub.1 -C.sub.6) alkyl, (C.sub.1 -C.sub.6) acyl, aryl or heterocyclyl group; n is 0, 1 or 2), R.sup.2 is a hydrogen atom, or a (C.sub.1 -C.sub.6) alkyl, (C.sub.1 -C.sub.6) alkyloxy 10 or (C.sub.1 -C.sub.6) alkylthio group, R.sup.3 and R.sup.4 are identical or different, representing a hydrogen atom, or a (C.sub.1 -C.sub.6) alkyl, aryl or aryl(C.sub.1 -C.sub.6)alkylene group, R.sup.5 is a --Y--C or C group (Y is a (C.sub.1 -C.sub.6) alkylene group, an oxygen atom, an imino group or a (C.sub.1 -C.sub.6) alkyleneimino group, C is a sulfonic acid, phosphonic acid, amidino, (C.sub.1 -C.sub.6) acyl, acylimidoyl, diphosphonomethine or dicarboxymethine group), and R.sup.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: November 14, 2000
    Assignee: Fuji Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Tetsunori Fujisawa, Shinjiro Odake, Yasuo Morita, Tomoko Hongo, Hajime Ito, Junko Yasuda, Eiko Suda, Katsuhiro Igeta, Tadanori Morikawa