Patents by Inventor Noriyuki SHIOMI

Noriyuki SHIOMI 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 dicyanocyclohexane and bis(aminomethyl)cyclohexane
    Patent number: 11572338
    Abstract: The problem addressed by this invention is to achieve a useful and novel method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane. This problem was solved by providing a method for producing dicyanocyclohexane having a cyanation step in which dicyanocyclohexane is obtained by a cyanation reaction of cyanocyclohexane-1-carboxylic acid and/or a salt thereof with an ammonia source, and a method for producing bis(aminomethyl)cyclohexane using the dicyanocyclohexane thus produced.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 7, 2023
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Emi Nakano, Noriyuki Shiomi, Akifumi Iida
  • Method for preparing dicyanoalkane and bis(aminomethyl) alkane
    Patent number: 11542222
    Abstract: A method for preparing a dicyanoalkane may omit a filtration for a catalyst after a cyanation reaction can by carrying out the cyanation reaction in a state in which precipitation of a metal catalyst is suppressed. A method for preparing a dicyanoalkane may involve cyanating one or more aliphatic dicarboxylic acids and/or salt(s) thereof with an ammonia source in the presence of a predetermined compound and a catalyst, wherein, in the cyanation, the amount of the predetermined compound is maintained at a predetermined amount or more with respect to the catalyst.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: January 3, 2023
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki Shiomi, Emi Nakano, Akifumi Iida
  • METHOD FOR PREPARING DICYANOALKANE AND BIS(AMINOMETHYL)ALKANE
    Publication number: 20210139408
    Abstract: A method for preparing a dicyanoalkane may omit a filtration for a catalyst after a cyanation reaction can by carrying out the cyanation reaction in a state in which precipitation of a metal catalyst is suppressed. A method for preparing a dicyanoalkane may involve cyanating one or more aliphatic dicarboxylic acids and/or salt(s) thereof with an ammonia source in the presence of a predetermined compound and a catalyst, wherein, in the cyanation, the amount of the predetermined compound is maintained at a predetermined amount or more with respect to the catalyst.
    Type: Application
    Filed: April 11, 2019
    Publication date: May 13, 2021
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki SHIOMI, Emi NAKANO, Akifumi IIDA
  • METHOD FOR PRODUCING DICYANOCYCLOHEXANE AND BIS(AMINOMETHYL)CYCLOHEXANE
    Publication number: 20200392072
    Abstract: The problem addressed by this invention is to achieve a useful and novel method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane. This problem was solved by providing a method for producing dicyanocyclohexane having a cyanation step in which dicyanocyclohexane is obtained by a cyanation reaction of cyanocyclohexane-1-carboxylic acid and/or a salt thereof with an ammonia source, and a method for producing bis(aminomethyl)cyclohexane using the dicyanocyclohexane thus produced.
    Type: Application
    Filed: December 26, 2018
    Publication date: December 17, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Emi NAKANO, Noriyuki SHIOMI, Akifumi IIDA