Patents by Inventor Kayo Yuminoki

Kayo Yuminoki 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).

  • Patent number: 12090233
    Abstract: Masking particles which comprise a drug-containing particle containing a drug, an acid, and a carbonate, the drug-containing particle being coated with a coating layer containing a water-insoluble polymer sufficiently suppress drug release in the oral cavity and pharynx, rapidly release a drug after swallowing, and easily control the release suppression time of a drug. The acid may be at least one organic acid. The carbonate may be at least one water-soluble carbonate. Oral pharmaceutical compositions include tablets, granules, fine granules, powders.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: September 17, 2024
    Assignee: TOWA PHARMACEUTICAL CO., LTD.
    Inventors: Tatsuya Honjo, Megumi Murahashi, Masaki Sato, Kayo Yuminoki, Isamu Saeki, Yutaka Okuda
  • Publication number: 20230094101
    Abstract: The present invention chiefly aims to provide a new API particle in which a metal or the like is coated on the API itself of a pharmaceutical solid dosage form. The present invention includes, for example, a coated API particle, wherein the surface of an API particle is coated with a metal or a metal oxide (e.g., iron oxide) by sputter deposition, and a process for manufacturing a pharmaceutical solid dosage form (e.g., tablet) using the coated API particles. According to the present invention, for example, it is possible to improve the photostability of an API itself or of pharmaceutical solid dosage forms produced with the API.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 30, 2023
    Applicant: TOWA PHARMACEUTICAL CO., LTD.
    Inventors: Yutaka Okuda, Isamu Saeki, Tatsuya Honjo, Kayo Yuminoki
  • Publication number: 20220401373
    Abstract: Masking particles which comprise a drug-containing particle containing a drug, an acid, and a carbonate, the drug-containing particle being coated with a coating layer containing a water-insoluble polymer sufficiently suppress drug release in the oral cavity and pharynx, rapidly release a drug after swallowing, and easily control the release suppression time of a drug. The acid may be at least one organic acid. The carbonate may be at least one water-soluble carbonate. Oral pharmaceutical compositions include tablets, granules, fine granules, powders.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 22, 2022
    Applicant: TOWA PHARMACEUTICAL CO., LTD.
    Inventors: Tatsuya HONJO, Megumi MURAHASHI, Masaki SATO, Kayo YUMINOKI, Isamu SAEKI, Yutaka OKUDA
  • Publication number: 20210346301
    Abstract: The main object is to provide a novel pharmaceutical solid preparation containing a pharmaceutically active ingredient, wherein the solid preparation is coated with a light shielding agent in a nano-order thickness. The present invention can include a pharmaceutical solid preparation containing at least one pharmaceutically active ingredient, wherein the surface of the solid preparation is coated with a light shielding agent or a metal oxide to a thickness in a range of 1 nm to 500 nm to form a coating layer, or is coated with a light shielding agent or a metal oxide which is present in a range of 5×10?6 mg/mm2 to 3×10?3 mg/mm2 to form a coating layer, and a process for producing a solid preparation containing at least one pharmaceutically active ingredient, comprising a step of coating a light shielding agent or a metal oxide by sputtering on the surface of the solid preparation to a thickness in a range of 1 nm to 500 nm.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 11, 2021
    Applicant: Towa Pharmaceutical Co., Ltd.
    Inventors: Yutaka Okuda, Isamu Saeki, Tatsuya Honjo, Kayo Yuminoki
  • Publication number: 20210196635
    Abstract: The present invention provides a method of efficiently manufacturing drug-containing particle which has a sharp peak in the particle size distribution, is highly spherical, and good in fluidity. The present invention relates to a manufacturing method of a drug-containing particle, the drug-containing particle comprising a raw material particle and a coating layer on the outside of the raw material particle, the raw material particle and/or the coating layer comprising at least one drug, wherein the manufacturing method comprises a granulation process that agitates a mixture comprising a core particle for powder coating formed by coating the raw material particle with a polymer and a drug and/or pharmaceutically acceptable additive while spraying a solvent which can dissolve the polymer on the mixture.
    Type: Application
    Filed: August 27, 2019
    Publication date: July 1, 2021
    Inventors: Yutaka Okuda, Isamu Saeki, Tatsuya Honjo, Keisuke Hiraishi, Kayo Yuminoki