Patents by Inventor Aya ASAHINA

Aya ASAHINA 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 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or salt thereof
    Patent number: 10252995
    Abstract: The present invention provides a method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof, the method including the step of heating hydroquinone and 4-(4-trifluoromethoxyphenoxy)piperidine. This method can produce 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof in an industrially advantageous manner.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: April 9, 2019
    Assignee: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Masahiro Miyake, Aya Asahina, Takahiro Okada
  • METHOD FOR PRODUCING 1-(4-HYDROXYPHENYL)-4-(4-TRIFLUOROMETHOXYPHENOXY)PIPERIDINE OR SALT THEREOF
    Publication number: 20180065931
    Abstract: The present invention provides a method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof, the method including the step of heating hydroquinone and 4-(4-trifluoromethoxyphenoxy)piperidine. This method can produce 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or a salt thereof in an industrially advantageous manner.
    Type: Application
    Filed: March 25, 2016
    Publication date: March 8, 2018
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Masahiro MIYAKE, Aya ASAHINA, Takahiro OKADA