Patents by Inventor Reiji YOKOYAMA

Reiji YOKOYAMA 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).

  • Solid dosage form containing quinazoline derivative
    Patent number: 10953016
    Abstract: The present invention provides a formulation containing the compound represented by formula (I) or a pharmaceutically acceptable salt thereof, or their crystals, with a light-stabilizing substance and a polymer, particularly with one or more of titanium oxide and talc used as the light-stabilizing substance, and hypromellose used as the polymer, which hardly increase the amount of the related substances, and the formulation is hardly colored under light irradiation.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 23, 2021
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Reiji Yokoyama, Satoshi Sakuma, Shohei Aikawa, Hironori Tanaka
  • SOLID DOSAGE FORM CONTAINING QUINAZOLINE DERIVATIVE
    Publication number: 20190365773
    Abstract: The present invention provides a formulation containing the compound represented by formula (I) or a pharmaceutically acceptable salt thereof, or their crystals, with a light-stabilizing substance and a polymer, particularly with one or more of titanium oxide and talc used as the light-stabilizing substance, and hypromellose used as the polymer, which hardly increase the amount of the related substances, and the formulation is hardly colored under light irradiation.
    Type: Application
    Filed: January 29, 2018
    Publication date: December 5, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Reiji YOKOYAMA, Satoshi SAKUMA, Shohei AIKAWA, Hironori TANAKA