Patents by Inventor Ariyoshi Kubota

Ariyoshi Kubota 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).

  • Porcess for production of 2-cyano-3-hydroxy-n-(4-trifluoromethylphenyl)hept-2-en-6-ynamide and process for production of polymorphs thereof
    Publication number: 20060217440
    Abstract: A compound (II) is reacted with a compound (III) or a reactive derivative at the carboxyl group thereof to obtain a compound (IV), which is reacted with a mixed acid anhydride of a compound (V) to prepare a compound (I). In recrystallization of the compound (I), temperature for the recrystallization and/or time for the crystal precipitation is controlled to selectively produce A-form crystals, B-form crystals and C-form crystals of the compound (I).
    Type: Application
    Filed: March 23, 2004
    Publication date: September 28, 2006
    Inventors: Hiroki Omori, Satoshi Hirabayashi, Ariyoshi Kubota, Takeshi Kawakami, Yosuke Fujii, Ikuo Matsumoto, Masato Kitayama, Shunsuke Goto
  • Triazole derivatives
    Patent number: 6927230
    Abstract: A compound of the formula (I): wherein R1 is lower alkyl which is optionally substituted with halogen, cyano, N,N-di(lower)alkylcarbamoyl, phenyl optionally substituted with halogen, or heterocyclic group, cyclo(lower)alkyl, lower alkynyl, or N,N-di(lower)alkylcarbamoyl; R2 is lower alkyl, lower alkoxy, cyano, or 1H-pyrrol-1-yl; R3 is lower alkyl, lower alkoxy, or cyano; X is O, S, SO or SO2; Y and Z are each CH or N; and m is 0 or 1; or salts thereof, which are useful as a medicament.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 9, 2005
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Satoshi Aoki, Toshiya Nakagawa, Nobukiyo Konishi, Katsuya Nakamura, Hiroki Omori, Ariyoshi Kubota, Norio Hashimoto
  • Triazole derivatives
    Publication number: 20030191155
    Abstract: A compound of the formula (I): 1
    Type: Application
    Filed: February 19, 2003
    Publication date: October 9, 2003
    Inventors: Satoshi Aoki, Toshiya Nakagawa, Nobukiyo Konishi, Katsuya Nakamura, Hiroki Omori, Ariyoshi Kubota, Norio Hashimoto