Patents by Inventor Aoi YAMAZOE

Aoi YAMAZOE 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).

  • Production method for cyclohexanedicarboxylic acid compound, dicyanocyclohexane compound and bis(aminomethyl)cyclohexane compound
    Patent number: 11584705
    Abstract: A production method for a cyclohexanedicarboxylic acid compound, having a step of obtaining a cyclohexanedicarboxylic acid compound or an aqueous ammonia solution of a cyclohexanedicarboxylic acid compound by bringing a phthalic acid compound in an aqueous ammonia solution into contact with hydrogen in the presence of a fixed bed catalyst in a reactor.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 21, 2023
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Aoi Yamazoe, Yuta Ohmori, Akifumi Iida, Yutaka Kanbara
  • Production method for 1,4-cyclohexanedicarboxylic acid derivative, 1,4-dicyanocyclohexane and 1,4-bis(aminomethyl)cyclohexane
    Patent number: 11472765
    Abstract: A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: October 18, 2022
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akifumi Iida, Aoi Yamazoe
  • PRODUCTION METHOD FOR 1,4-CYCLOHEXANEDICARBOXYLIC ACID DERIVATIVE, 1,4-DICYANOCYCLOHEXANE AND 1,4-BIS(AMINOMETHYL)CYCLOHEXANE
    Publication number: 20210032191
    Abstract: A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.
    Type: Application
    Filed: April 11, 2019
    Publication date: February 4, 2021
    Applicant: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akifumi IIDA, Aoi YAMAZOE
  • Method for producing 1,4-dicyanocyclohexane, 1,4-bis(aminomethyl)cyclohexane and 1,4-cyclohexanedicarboxylic acid
    Patent number: 10906865
    Abstract: A method for producing 1,4-dicyanocyclohexane, having a step of obtaining 1,4-dicyanocyclohexane by subjecting a heated concentrate of an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to a cyanation reaction.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 2, 2021
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akifumi Iida, Yuta Ohmori, Emi Nakano, Aoi Yamazoe
  • PRODUCTION METHOD FOR CYCLOHEXANEDICARBOXYLIC ACID COMPOUND, DICYANOCYCLOHEXANE COMPOUND AND BIS(AMINOMETHYL)CYCLOHEXANE COMPOUND
    Publication number: 20210024445
    Abstract: A production method for a cyclohexanedicarboxylic acid compound, having a step of obtaining a cyclohexanedicarboxylic acid compound or an aqueous ammonia solution of a cyclohexanedicarboxylic acid compound by bringing a phthalic acid compound in an aqueous ammonia solution into contact with hydrogen in the presence of a fixed bed catalyst in a reactor.
    Type: Application
    Filed: April 11, 2019
    Publication date: January 28, 2021
    Applicant: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Aoi YAMAZOE, Yuta OHMORI, Akifumi IIDA, Yutaka KANBARA
  • METHOD FOR PRODUCING 1,4-DICYANOCYCLOHEXANE, 1,4-BIS(AMINOMETHYL)CYCLOHEXANE AND 1,4-CYCLOHEXANEDICARBOXYLIC ACID
    Publication number: 20190225572
    Abstract: A method for producing 1,4-dicyanocyclohexane, having a step of obtaining 1,4-dicyanocyclohexane by subjecting a heated concentrate of an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to a cyanation reaction.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 25, 2019
    Applicant: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akifumi IIDA, Yuta OHMORI, Emi NAKANO, Aoi YAMAZOE