Patents by Inventor Yoshihito Kanzawa

Yoshihito Kanzawa 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).

  • Sulfonamide compound and crystal thereof
    Patent number: 8232292
    Abstract: (S)-1-(4-Chloro-5-isoquinolinesulfonyl)-3-(methylamino)pyrrolidine monohydrochloride and a crystal thereof, and a crystal of the aforementioned monohydrochloride having a major peak or peaks at one or more positions selected from the group consisting of positions where 2?s are about 13.9°, 21.5°, 21.7°, 22.4°, 22.8°, 24.5° and 35.0° in a powder X-ray diffraction spectrum, which have excellent properties as active ingredient of a medicament for prophylactic and/or therapeutic treatment of glaucoma and the like.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: July 31, 2012
    Assignee: Asahi Kasei Pharma Corporation
    Inventors: Hitoshi Kida, Koki Matsubara, Shunsuke Kaneko, Yoshihito Kanzawa
  • STABLE AQUEOUS SOLUTION COMPOSITION CONTAINING SULFONAMIDE COMPOUND
    Publication number: 20110184017
    Abstract: An aqueous solution composition containing (S)-1-(4-chloro-5-isoquinolinesulfonyl)-3-aminopyrrolidine or (S)-1-(4-chloro-5-isoquinolinesulfonyl)-3-(methylamino)pyrrolidine as an active ingredient, and not containing citric acid or a salt thereof, which has high stability so as to be storable at room temperature.
    Type: Application
    Filed: July 24, 2009
    Publication date: July 28, 2011
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventors: Yoshihito Kanzawa, Kazuhiko Katayama, Fumihide Nishio
  • Sulfonamide compound and crystal thereof
    Publication number: 20090156823
    Abstract: (S)-1-(4-Chloro-5-isoquinolinesulfonyl)-3-(methylamino)pyrrolidine monohydrochloride and a crystal thereof, and a crystal of the aforementioned monohydrochloride having a major peak or peaks at one or more positions selected from the group consisting of positions where 2?s are about 13.9°, 21.5°, 21.7°, 22.4°, 22.8°, 24.5° and 35.0° in a powder X-ray diffraction spectrum, which have excellent properties as active ingredient of a medicament for prophylactic and/or therapeutic treatment of glaucoma and the like.
    Type: Application
    Filed: July 1, 2008
    Publication date: June 18, 2009
    Applicant: Asahi Kasei Pharma Corporation
    Inventors: Hitoshi Kida, Koki Matsubara, Shunsuke Kaneko, Yoshihito Kanzawa