Patents by Inventor Akio RYU

Akio RYU 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 COATED TABLET
    Publication number: 20250161222
    Abstract: To provide an enteric coated tablet containing a large amount of medicinal ingredient and having sufficient impact resistance, without forming a thick enteric coating layer. The enteric coated tablet contains (A) a core tablet containing a medicinal ingredient and having a weight of 1,000 mg or more; (B) a coating layer containing a water-soluble polymer applied onto the surface of the core tablet; and (C) an enteric coating layer dissolving at pH 7 or higher which is applied onto the surface of the coating layer containing a water-soluble polymer, wherein the sum of the polymer amount of the coating layer (B) and the polymer amount of the coating layer (C) is 10 to 18 mg/cm2, the polymer amount of the coating layer (B) is 6 to 12 mg/cm2, and the polymer amount of the coating layer (C) is 3 to 6 mg/cm2.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Applicant: ZERIA PHARMACEUTICAL CO., LTD.
    Inventors: Akio RYU, Miyako OSADA
  • ENTERIC COATED TABLET
    Publication number: 20230372250
    Abstract: To provide an enteric coated tablet containing a large amount of medicinal ingredient and having sufficient impact resistance, without forming a thick enteric coating layer. The enteric coated tablet contains (A) a core tablet containing a medicinal ingredient and having a weight of 1,000 mg or more; (B) a coating layer containing a water-soluble polymer applied onto the surface of the core tablet; and (C) an enteric coating layer dissolving at pH 7 or higher which is applied onto the surface of the coating layer containing a water-soluble polymer, wherein the sum of the polymer amount of the coating layer (B) and the polymer amount of the coating layer (C) is 10 to 18 mg/cm2, the polymer amount of the coating layer (B) is 6 to 12 mg/cm2, and the polymer amount of the coating layer (C) is 3 to 6 mg/cm2.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Applicant: ZERIA PHARMACEUTICAL CO., LTD.
    Inventors: Akio RYU, Miyako OSADA
  • ENTERIC COATED TABLET
    Publication number: 20210093577
    Abstract: To provide an enteric coated tablet containing a large amount of medicinal ingredient and having sufficient impact resistance, without forming a thick enteric coating layer. The enteric coated tablet contains (A) a core tablet containing a medicinal ingredient and having a weight of 1,000 mg or more; (B) a coating layer containing a water-soluble polymer applied onto the surface of the core tablet; and (C) an enteric coating layer dissolving at pH 7 or higher which is applied onto the surface of the coating layer containing a water-soluble polymer, wherein the sum of the polymer amount of the coating layer (B) and the polymer amount of the coating layer (C) is 10 to 18 mg/cm2, the polymer amount of the coating layer (B) is 6 to 12 mg/cm2, and the polymer amount of the coating layer (C) is 3 to 6 mg/cm2.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Applicant: ZERIA PHARMACEUTICAL CO., LTD.
    Inventors: Akio RYU, Miyako OSADA
  • ENTERIC COATED TABLET
    Publication number: 20190015345
    Abstract: To provide an enteric coated tablet containing a large amount of medicinal ingredient and having sufficient impact resistance, without forming a thick enteric coating layer. The enteric coated tablet contains (A) a core tablet containing a medicinal ingredient and having a weight of 1,000 mg or more; (B) a coating layer containing a water-soluble polymer applied onto the surface of the core tablet; and (C) an enteric coating layer dissolving at pH 7 or higher which is applied onto the surface of the coating layer containing a water-soluble polymer, wherein the sum of the polymer amount of the coating layer (B) and the polymer amount of the coating layer (C) is 10 to 18 mg/cm2, the polymer amount of the coating layer (B) is 6 to 12 mg/cm2, and the polymer amount of the coating layer (C) is 3 to 6 mg/cm2.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 17, 2019
    Applicant: ZERIA PHARMACEUTICAL CO., LTD.
    Inventors: Akio Ryu, Miyako Osada
  • ENTERIC COATED TABLET
    Publication number: 20150374632
    Abstract: To provide an enteric coated tablet containing a large amount of medicinal ingredient and having sufficient impact resistance, without forming a thick enteric coating layer. The enteric coated tablet contains (A) a core tablet containing a medicinal ingredient and having a weight of 1,000 mg or more; (B) a coating layer containing a water-soluble polymer applied onto the surface of the core tablet; and (C) an enteric coating layer dissolving at pH 7 or higher which is applied onto the surface of the coating layer containing a water-soluble polymer, wherein the sum of the polymer amount of the coating layer (B) and the polymer amount of the coating layer (C) is 10 to 18 mg/cm2, the polymer amount of the coating layer (B) is 6 to 12 mg/cm2, and the polymer amount of the coating layer (C) is 3 to 6 mg/cm2.
    Type: Application
    Filed: February 21, 2014
    Publication date: December 31, 2015
    Applicant: ZERIA PHARMACEUTICAL CO., LTD.
    Inventors: Akio RYU, Miyako OSADA