Patents by Inventor Takahito YOSHIZAKI

Takahito YOSHIZAKI 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).

  • Method for producing patch, patch and package
    Patent number: 9320728
    Abstract: A method for producing a patch comprising a support layer and an adhesive agent layer arranged on at least one surface of the support layer, the method comprising: step A) obtaining an adhesive agent layer composition comprising free ropinirole in an amount which results in a content of 5 to 13.2% by mass in an obtained adhesive agent layer; step B) heating the adhesive agent layer composition at a temperature in a range from 50 to 76° C. for 5 minutes to 24 hours; and step C) cooling the heated adhesive agent layer composition to normal temperature at an average rate of temperature drop of 1 to 20° C./hour, thereby obtaining the adhesive agent layer comprising the free ropinirole at a supersaturated concentration in a dissolved form.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: April 26, 2016
    Assignee: HISAMITSU PHARMACEUTICAL CO., INC.
    Inventors: Takahito Yoshizaki, Kouji Tanaka, Kazunosuke Aida, Terumitsu Kaiho, Nobuo Tsutsumi
  • METHOD FOR PRODUCING PATCH, PATCH AND PACKAGE
    Publication number: 20150004215
    Abstract: A method for producing a patch comprising a support layer and an adhesive agent layer arranged on at least one surface of the support layer, the method comprising: step A) obtaining an adhesive agent layer composition comprising free ropinirole in an amount which results in a content of 5 to 13.2% by mass in an obtained adhesive agent layer; step B) heating the adhesive agent layer composition at a temperature in a range from 50 to 76° C. for 5 minutes to 24 hours; and step C) cooling the heated adhesive agent layer composition to normal temperature at an average rate of temperature drop of 1 to 20° C./hour, thereby obtaining the adhesive agent layer comprising the free ropinirole at a supersaturated concentration in a dissolved form.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Applicant: HISAMITSU PHARMACEUTICAL CO., INC.
    Inventors: Takahito YOSHIZAKI, Kouji Tanaka, Kazunosuke Aida, Terumitsu Kaiho, Nobuo Tsutsumi
  • Medical patch
    Patent number: D805208
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: December 12, 2017
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Kimiko Komatani, Takahito Yoshizaki, Tetsushi Kubota