Patents by Inventor Atushi Kajiyama

Atushi Kajiyama 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).

  • Quick disintegrating tablet in buccal cavity and manufacturing method thereof
    Patent number: 7074428
    Abstract: The present invention pertains to a quick disintegrating tablet in buccal cavity, characterized in that drug-containing particles with a mean particle diameter of approximately 50 to approximately 250 ?m and an apparent specific gravity of approximately 0.5 to approximately 1.2 consisting of a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier and obtained by spray drying are added to a quick disintegrating tablet in buccal cavity comprising a drug and a saccharide. Moreover, the present invention pertains to a method for manufacturing drug-containing particles having a specific mean particle diameter and specific apparent gravity by dissolving and suspending a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier to a high concentration in terms of solid concentration in a solvent and spray drying this liquid and a method for manufacturing a quick disintegrating tablet in buccal cavity comprising the particles.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: July 11, 2006
    Assignee: Astellas Pharma Inc.
    Inventors: Atushi Kajiyama, Tetsuya Tamura, Takao Mizumoto, Hitoshi Kawai, Tatsuya Takahashi
  • Quick disintegrating tablet in buccal cavity and manufacturing method thereof
    Publication number: 20040071773
    Abstract: The present invention pertains to a quick disintegrating tablet in buccal cavity, characterized in that drug-containing particles with a mean particle diameter of approximately 50˜approximately 250 &mgr;m and an apparent specific gravity of approximately 0.5˜approximately 1.2 consisting of a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier and obtained by spray drying are added to a quick disintegrating tablet in buccal cavity comprising a drug and saccharide.
    Type: Application
    Filed: September 18, 2003
    Publication date: April 15, 2004
    Applicant: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Atushi Kajiyama, Tetsuya Tamura, Takao Mizumoto, Hitoshi Kawai, Tatsuya Takahashi
  • Quick disintegrating tablet in buccal cavity and manufacturing method thereof
    Patent number: 6656492
    Abstract: The present invention pertains to a quick disintegrating tablet in buccal cavity, characterized in that drug-containing particles with a mean particle diameter of approximately 50˜approximately 250 &mgr;m and an apparent specific gravity of approximately 0.5˜approximately 1.2 consisting of a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier and obtained by spray drying are added to a quick disintegrating tablet in buccal cavity comprising a drug and saccharide.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 2, 2003
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Atushi Kajiyama, Tetsuya Tamura, Takao Mizumoto, Hitoshi Kawai, Tatsuya Takahashi
  • Quick disintegrating tablet in buccal cavity and manufacturing method thereof
    Publication number: 20020071865
    Abstract: The present invention pertains to a quick disintegrating tablet in buccal cavity, characterized in that drug-containing particles with a mean particle diameter of approximately 50˜approximately 250 &mgr;m and an apparent specific gravity of approximately 0.5˜approximately 1.2 consisting of a bitter tasting drug and/or drug of inferior fluidity and a pharmaceutical preparation carrier and obtained by spray drying are added to a quick disintegrating tablet in buccal cavity comprising a drug and saccharide.
    Type: Application
    Filed: June 28, 2001
    Publication date: June 13, 2002
    Inventors: Atushi Kajiyama, Tetsuya Tamura, Takao Mizumoto, Hitoshi Kawai, Tatsuya Takahashi