Patents by Inventor Yoriko Shinohara

Yoriko Shinohara 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).

  • Substituted 1,3-thiazolo[5,4-d]pyrimidines as xanthine oxidase inhibitors
    Patent number: 7598254
    Abstract: The invention relates to compounds of the following formula (I) or their salts: in which R1 is a group of phenyl, naphthyl, pyridyl or the like which may have a substituent such as an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkoxycarbonyl group having 2-8 carbon atoms, carboxyl, halogen, hydroxyl, nitro, or cyano; R2 is cyano, nitro, or the like; R3 is hydroxyl or the like; X is oxygen, sulfur, or the like; and Y is oxygen or sulfur, and a xanthine oxidase inhibitor containing the compound.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: October 6, 2009
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shinichi Yoshida, Kunio Kobayashi, Nobutaka Mochiduki, Tomio Yamakawa, Tadashi Kobayashi, Yoriko Shinohara
  • XANTHINE OXIDASE INHIBITOR
    Publication number: 20090149452
    Abstract: A compound represented by the following formula (I) is used as a xanthine oxidase inhibitor: in which R1 is phenyl or pyridyl each optionally having, as a substituent, C1-8 alkyl, C1-8 haloalkyl, C1-8 alkoxy, carboxyl, halogeno, hydroxyl, nitro, cyano, amino, etc.; R2 is cyano, nitro, etc.; X is oxygen, sulfur, etc.; and Y is sulfur, NH, etc.
    Type: Application
    Filed: June 29, 2006
    Publication date: June 11, 2009
    Applicant: NIPPON CHEMIPHAR CO., LTD.
    Inventors: Takeshi Nishino, Shinichi Yoshida, Atsushi Tendo, Tomio Yamakawa, Tadashi Kobayashi, Yoriko Shinohara
  • Condensed Pyrimidine Deriviative and Xanthine Oxidase Inhibitor
    Publication number: 20070293512
    Abstract: The invention relates to compounds of the following formula (I) or their salts: in which R1 is a group of phenyl, naphthyl, pyridyl or the like which may have a substituent such as an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkoxycarbonyl group having 2-8 carbon atoms, carboxyl, halogen, hydroxyl, nitro, or cyano; R2 is cyano, nitro, or the like; R3 is hydroxyl or the like; X is oxygen, sulfur, or the like; and Y is oxygen or sulfur, and a xanthine oxidase inhibitor containing the compound.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 20, 2007
    Inventors: Shinichi Yoshida, Kunio Kobayashi, Nobutaka Mochiduki, Tomio Yamakawa, Tadashi Kobayashi, Yoriko Shinohara
  • Xanthine Oxidase Inhibitor
    Publication number: 20070265283
    Abstract: The invention relates to compounds of the following formula (I) or their salts: in which R1 represents OR4 or others, in which R4 is an alkyl group having 1-8 carbon atoms which may have a substituent or the like; R2 is halogen, nitro, cyano, carboxyl, or the like; R3 is hydrogen, halogen, hydroxyl, amino, carboxyl, or the like; X is NR11, oxygen, or sulfur, in which R11 is hydrogen, or an alkyl group having 1-8 carbon atom which may have a substituent; and each of Y and Z is CR12 or nitrogen, in which R12 has the same meaning as R3 above, and a xanthine oxidase inhibitor containing the compound as an active ingredient.
    Type: Application
    Filed: July 27, 2007
    Publication date: November 15, 2007
    Inventors: Shinichi Yoshida, Atsushi Tendo, Kunio Kobayashi, Nobutaka Mochiduki, Tomio Yamakawa, Yoriko Shinohara
  • Substituted thiazolopyrimidines as xanthine oxidase inhibitors
    Patent number: 7253154
    Abstract: The invention relates to compounds of the following formula (I) or their salts: in which R1 represents OR4 or others, in which R4 is an alkyl group having 1-8 carbon atoms which may have a substituent or the like; R2 is halogen, nitro, cyano, carboxyl, or the like; R3 is hydrogen, halogen, hydroxyl, amino, carboxyl, or the like; X is NR11, oxygen, or sulfur, in which R11 is hydrogen, or an alkyl group having 1-8 carbon atom which may have a substituent; and each of Y and Z is CR12 or nitrogen, in which R12 has the same meaning as R3 above, and a xanthine oxidase inhibitor containing the compound as an active ingredient.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: August 7, 2007
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shinichi Yoshida, Atsushi Tendo, Kunio Kobayashi, Nobutaka Mochiduki, Tomio Yamakawa, Yoriko Shinohara
  • Xanthine oxidase inhibitors
    Publication number: 20050090472
    Abstract: The invention relates to compounds of the following formula (I) or their salts: in which R1 represents OR4 or others, in which R4 is an alkyl group having 1-8 carbon atoms which may have a substituent or the like; R2 is halogen, nitro, cyano, carboxyl, or the like; R3 is hydrogen, halogen, hydroxyl, amino, carboxyl, or the like; X is NR11, oxygen, or sulfur, in which R11 is hydrogen, or an alkyl group having 1-8 carbon atom which may have a substituent; and each of Y and Z is CR12 or nitrogen, in which R12 has the same meaning as R3 above, and a xanthine oxidase inhibitor containing the compound as an active ingredient.
    Type: Application
    Filed: November 14, 2002
    Publication date: April 28, 2005
    Inventors: Shinichi Yoshida, Atsushi Tendo, Kunio Kobayashi, Nobutaka Mochiduki, Tomio Yamakawa, Yoriko Shinohara