Patents by Inventor Hiroya Sugao

Hiroya Sugao 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).

  • Enteric sustained-release fine particles of tamsulosin and its salt and manufacturing method thereof
    Publication number: 20040253309
    Abstract: The present invention relates to enteric sustained-release fine particles of tamsulosin or its salt that can be contained in tablets that disintegrate in the buccal cavity and a manufacturing method thereof.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 16, 2004
    Applicant: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yoji Tanijiri, Akira Ito, Hiroya Sugao, Tetsuya Tamura, Mare Nishura, Shigeru Yamazaki, Takao Mizumoto
  • Quick release coated preparation
    Patent number: 5578322
    Abstract: A coated preparation prepared by coating drug particles having a disagreeable taste with a mixture comprising a hydrophobic substance with a melting point of 45.degree. to 90.degree. C. and a surfactant with a lower melting point and heat treating the coating layer at a temperature ranging from around the melting point of the surfactant up to the melting point of the hydrophobic substance to modify the nature of the coating layer. This preparation can release the drug quickly which sufficiently suppressing the disagreeable taste.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: November 26, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroyoshi Shiozawa, Hiroya Sugao, Shigeru Yamazaki, Katsuhiko Yano