Patents by Inventor Misao MATSUSHIGE

Misao MATSUSHIGE 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).

  • Analysis method of diene compound
    Patent number: 11885819
    Abstract: Provided is a method for analyzing a diene compound including: a triazolinedione adduct heating step of heating a triazolinedione adduct to produce a triazolinedione compound; an ene compound formation step of reacting the triazolinedione compound with a diene compound to obtain an ene compound; and an ene compound analysis step of analyzing the ene compound to quantitative determine the diene compound. Also provided is a method for producing an ene compound, including: a triazolinedione adduct heating step of heating a triazolinedione adduct to produce a triazolinedione compound; and an ene compound formation step of reacting the triazolinedione compound with a diene compound to obtain an ene compound.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 30, 2024
    Assignees: JOEL LTD, TOKUYAMA CORPORATION
    Inventors: Masaki Takiwaki, Seketsu Fukuzawa, Misao Matsushige, Shin Watanabe
  • Method for producing triazolidinedione compound
    Patent number: 11339133
    Abstract: Provided is a method for industrially producing a triazolidinedione compound at a high purity and a high yield. A precipitation step for preparing a solution that contains a triazolidinedione compound represented by formula (1) and precipitating the triazolidinedione compound therefrom is performed. In this step, the pH of the solution is adjusted to 3.0 to 8.5 and the solution is prepared so as to contain 3-15 parts by volume of solvents for 1 part by mass of the triazolidinedione compound. (In the formula, R1 is a substituted or unsubstituted amino group-bearing organic group.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 24, 2022
    Assignees: TOKUYAMA CORPORATION, JOEL LTD.
    Inventors: Makoto Satou, Misao Matsushige, Seketsu Fukuzawa, Masaki Takiwaki
  • Method for producing semicarbazide compound
    Patent number: 11192854
    Abstract: Provided is a method for producing a high-purity, high-quality semicarbazide compound at a high yield by a simple method. The semicarbazide compound is recrystallized by a solvent containing a halogenated hydrocarbon. Dichloromethane is preferred as the halogenated hydrocarbon.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 7, 2021
    Assignees: TOKUYAMA CORPORATION, JOEL LTD.
    Inventors: Makoto Satou, Misao Matsushige, Seketsu Fukuzawa, Masaki Takiwaki
  • METHOD FOR PRODUCING TRIAZOLIDINEDIONE COMPOUND
    Publication number: 20210253541
    Abstract: Provided is a method for industrially producing a triazolidinedione compound at a high purity and a high yield. A precipitation step for preparing a solution that contains a triazolidinedione compound represented by formula (1) and precipitating the triazolidinedione compound therefrom is performed. In this step, the pH of the solution is adjusted to 3.0 to 8.5 and the solution is prepared so as to contain 3-15 parts by volume of solvents for 1 part by mass of the triazolidinedione compound. (In the formula, R1 is a substituted or unsubstituted amino group-bearing organic group.
    Type: Application
    Filed: June 11, 2019
    Publication date: August 19, 2021
    Applicants: TOKUYAMA CORPORATION, JEOL Ltd.
    Inventors: Makoto SATOU, Misao MATSUSHIGE, Seketsu FUKUZAWA, Masaki TAKIWAKI
  • ANALYSIS METHOD OF DIENE COMPOUND AND PRODUCTION METHOD OF ENE COMPOUND
    Publication number: 20210109119
    Abstract: Provided is a method for analyzing a diene compound including: a triazolinedione adduct heating step of heating a triazolinedione adduct to produce a triazolinedione compound; an ene compound formation step of reacting the triazolinedione compound with a diene compound to obtain an ene compound; and an ene compound analysis step of analyzing the ene compound to quantitative determine the diene compound. Also provided is a method for producing an ene compound, including: a triazolinedione adduct heating step of heating a triazolinedione adduct to produce a triazolinedione compound; and an ene compound formation step of reacting the triazolinedione compound with a diene compound to obtain an ene compound.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Applicants: JEOL Ltd., TOKUYAMA CORPORATION
    Inventors: Masaki TAKIWAKI, Seketsu FUKUZAWA, Misao MATSUSHIGE, Shin WATANABE
  • METHOD FOR PRODUCING SEMICARBAZIDE COMPOUND
    Publication number: 20210002212
    Abstract: Provided is a method for producing a high-purity, high-quality semicarbazide compound at a high yield by a simple method. The semicarbazide compound is recrystallized by a solvent containing a halogenated hydrocarbon. Dichloromethane is preferred as the halogenated hydrocarbon.
    Type: Application
    Filed: June 11, 2019
    Publication date: January 7, 2021
    Applicants: TOKUYAMA CORPORATION, JEOL Ltd.
    Inventors: Makoto SATOU, Misao MATSUSHIGE, Seketsu FUKUZAWA, Masaki TAKIWAKI