Patents by Inventor Katsuhiko Gato

Katsuhiko Gato 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).

  • Crystal of fused pyridine compound salt
    Patent number: 8779140
    Abstract: [Problem] A salt or crystal of a compound which is highly stable in a solid state and useful as a bulk material for the preparation of a pharmaceutical product is provided. [Means for Solution] 4-{[(1R,2s,3S,5s,7s)-5-Hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide succinate, 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide hydrobromide, and 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide hydrochloride and crystals thereof are useful as a bulk material for the preparation of a solid preparation, in particular, a solid dispersion preparation. Furthermore, the crystal of the hydrobromide has excellent stability in a solid state and is useful as a bulk material for the preparation of a pharmaceutical product.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: July 15, 2014
    Assignee: Astellas Pharma Inc.
    Inventors: Takashi Kikuchi, Katsuhiko Gato, Koichiro Mukoyoshi, Tsuyoshi Kitamura, Takeshi Kawakami, Hironobu Yasuda
  • METHOD FOR DETERMINING LIPOPHILICITY
    Publication number: 20130261986
    Abstract: An object of the present invention is to provide a method for rapidly and accurately determining the lipophilicity of a wide variety of substances.
    Type: Application
    Filed: December 26, 2011
    Publication date: October 3, 2013
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Ryo Mizoguchi, Katsuhiko Gato
  • CRYSTAL OF FUSED PYRIDINE COMPOUND SALT
    Publication number: 20130102628
    Abstract: [Problem] A salt or crystal of a compound which is highly stable in a solid state and useful as a bulk material for the preparation of a pharmaceutical product is provided. [Means for Solution] 4-{[(1R,2s,3S,5s,7s)-5-Hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide succinate, 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide hydrobromide, and 4-{[(1R,2s,3S,5s,7s)-5-hydroxy-2-adamantyl]amino}-1H-pyrrolo[2,3-b]pyridine-5-carboxamide hydrochloride and crystals thereof are useful as a bulk material for the preparation of a solid preparation, in particular, a solid dispersion preparation. Furthermore, the crystal of the hydrobromide has excellent stability in a solid state and is useful as a bulk material for the preparation of a pharmaceutical product.
    Type: Application
    Filed: June 22, 2011
    Publication date: April 25, 2013
    Applicant: Astellas Pharma Inc.
    Inventors: Takashi Kikuchi, Katsuhiko Gato, Koichiro Mukoyoshi, Tsuyoshi Kitamura, Takeshi Kawakami, Hironobu Yasuda