Patents by Inventor Naoya Akazawa

Naoya Akazawa 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).

  • Tizanidine therapy system
    Patent number: 11559519
    Abstract: An object of the present invention is to provide a method for the treatment of a patient suffering from spasticity comprising administering to said patient a modified release dosage form comprising tizanidine or a pharmaceutically acceptable salt thereof. The present invention relates to a method of administering a transdermal patch preparation comprising tizanidine or a pharmaceutically acceptable salt thereof to a subject in need thereof, wherein the transdermal patch preparation releases about 4 mg to about 36 mg of tizanidine or a pharmaceutically acceptable salt thereof for at least about 24 hours.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 24, 2023
    Assignee: MEDRX, CO., LTD.
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa, Takahiro Tanimoto
  • Percutaneous absorption composition
    Patent number: 11382978
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promotor. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: July 12, 2022
    Assignee: MEDRX CO., LTD
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa
  • Tizanidine Therapy System
    Publication number: 20210030724
    Abstract: An object of the present invention is to provide a method for the treatment of a patient suffering from spasticity comprising administering to said patient a modified release dosage form comprising tizanidine or a pharmaceutically acceptable salt thereof. The present invention relates to a method of administering a transdermal patch preparation comprising tizanidine or a pharmaceutically acceptable salt thereof to a subject in need thereof, wherein the transdermal patch preparation releases about 4 mg to about 36 mg of tizanidine or a pharmaceutically acceptable salt thereof for at least about 24 hours.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 4, 2021
    Applicant: MEDRx Co., Ltd.
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa, Takahiro Tanimoto
  • PERCUTANEOUS ABSORPTION COMPOSITION
    Publication number: 20200171156
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promotor. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa
  • Percutaneous absorption composition
    Patent number: 10588973
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promotor. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 17, 2020
    Assignee: MEDRx Co., LTD
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa
  • PERCUTANEOUS ABSORPTION COMPOSITION
    Publication number: 20180236082
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promotor. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa
  • Percutaneous absorption composition
    Patent number: 9974858
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promoter. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 22, 2018
    Assignee: MEDRx CO., LTD
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa
  • PERCUTANEOUS ABSORPTION COMPOSITION
    Publication number: 20170056502
    Abstract: The embodiments provide a percutaneous absorption composition for a basic medicament having improved transdermal absorbability. The percutaneous absorption composition comprises a sorbic acid and/or a metal sorbate as a percutaneous absorption promotor. The molar ration of the sorbic acid and/or the metal sorbate to the basic medicament is 0.5-2.5. The composition of the present disclosure may further comprise a basic component.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 2, 2017
    Inventors: Yasushi Miwa, Hidetoshi Hamamoto, Naoya Akazawa