Patents by Inventor Mitsunori NISHIKAWA

Mitsunori NISHIKAWA 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).

  • TIMED-ELUTION MASKING PARTICLES AND ORAL PHARMACEUTICAL COMPOSITION CONTAINING THE SAME
    Publication number: 20240016745
    Abstract: In masking particles comprising a drug-containing particle containing a drug of a salt with an acid and containing a carbonate, the drug-containing particle being coated with a coating layer containing a water-insoluble polymer, drug release in the oral cavity and pharynx is sufficiently suppressed, the drug is rapidly released after swallowing, and the release suppression time of the drug is easily controlled. The drug-containing particle may comprise a core particle and an interlayer on the core particle, and the core particle may contain the drug of a salt with an acid, and the interlayer contains the carbonate, or the core particle may contain the carbonate, and the interlayer may contain the drug of a salt with an acid.
    Type: Application
    Filed: December 4, 2021
    Publication date: January 18, 2024
    Applicant: TOWA PHARMACEUTICAL CO., LTD.
    Inventors: Tatsuya HONJO, Yusuke ICHIBAYASHI, Mitsunori NISHIKAWA, Megumi MURAHASHI, Isamu SAEKI, Yutaka OKUDA, Takuya MATSUI