Patents by Inventor Takashi Nukuda

Takashi Nukuda 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).

  • 2-furancarboxylic acid hydrazides and pharmaceutical compositions containing the same
    Patent number: 7514452
    Abstract: The present invention provides 2-furancarboxylic acid hydrazide compounds represented by General Formula (I) below, and prodrugs, physiologically acceptable salts, hydrates, solvates thereof: wherein A is a group represented by Formula (a) or the like: (wherein either R4 or R5 represents cyano, nitro or the like, and the other represents a hydrogen atom or the like); either R1 or R2 represents a group: -D-(X)m-R6 or the like, and the other represents a group: -E-(Y)n-R7, hydrogen atom, aryl or the like; R3 is a hydrogen atom or the like; D and E independently represent aryl; X and Y independently represent O or the like; R6 and R7 independently represent alkyl, aryl, arylalkyl or the like; and m and n are independently 0 or 1, provided that the aryl is optionally substituted.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: April 7, 2009
    Assignee: Dainippon Pharmaceutical Co., Ltd
    Inventors: Akihito Fujii, Toshiyuki Negoro, Chiaki Migihashi, Makoto Murata, Keiji Nakamura, Takashi Nukuda, Takafumi Matsumoto, Kiyomi Imano
  • 2-Furancarboxylic acid hydrazides and pharmaceutical compositions containing the same
    Publication number: 20050171196
    Abstract: The present invention provides 2-furancarboxylic acid hydrazide compounds represented by General Formula (I) below, and prodrugs, physiologically acceptable salts, hydrates, solvates thereof, methods for producing them and pharmaceutical compositions containing them: wherein A is a group represented by Formula (a) or the like: (wherein either R4 or R5 represents cyano, nitro or the like, and the other represents a hydrogen atom or the like); either R1 or R2 represents a group: -D-(X)m-R6 or the like, and the other represents a group: -E-(Y)n-R7, hydrogen atom, aryl or the like; R3 is a hydrogen atom or the like; D and E independently represent aryl; X and Y independently represent O or the like; R6 and R7 independently represent alkyl, aryl, arylalkyl or the like; and m and n are independently 0 or 1, provided that the aryl is optionally substituted.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 4, 2005
    Inventors: Akihito Fujii, Toshiyuki Negoro, Chiaki Migihashi, Makoto Murata, Keiji Nakamura, Takashi Nukuda, Takafumi Matsumoto, Kiyomi Imano