Patents by Inventor Masanori OHZAKI

Masanori OHZAKI 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).

  • Manufacturing method of carboxymethyl cellulose salt for electrode of nonaqueous electrolyte secondary battery, electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery
    Patent number: 10355280
    Abstract: A manufacturing method which includes: (1) an alkali cellulose reaction step wherein a mixed solvent having a mixing ratio (a mass ratio) of an alcohol having a carbon number of 3 or less and water of 75:25 to 95:5 is used, and the concentration of the base to the water is 25 to 40 mass %; (2) an etherification reaction step wherein a reaction is carried out under an excess base of 0.2 to 0.5 moles per unit of an anhydroglucose of the cellulose; (3) a neutralization step wherein acid is added to adjust the pH of the reaction mixture to 6.0 to 8.0; and (4) a heating step wherein the mixed solvent is removed, and a base is added to adjust the pH of the reaction mixture to 8.0 to 9.0, and then a heat treatment is performed at 40 to 70° C. for 30 to 120 minutes.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 16, 2019
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Atsushi Sanuki, Masanori Ohzaki, Miho Shibata
  • MANUFACTURING METHOD OF CARBOXYMETHYL CELLULOSE SALT FOR ELECTRODE OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20170256799
    Abstract: A manufacturing method which includes: (1) an alkali cellulose reaction step wherein a mixed solvent having a mixing ratio (a mass ratio) of an alcohol having a carbon number of 3 or less and water of 75:25 to 95:5 is used, and the concentration of the base to the water is 25 to 40 mass %; (2) an etherification reaction step wherein a reaction is carried out under an excess base of 0.2 to 0.5 moles per unit of an anhydroglucose of the cellulose; (3) a neutralization step wherein acid is added to adjust the pH of the reaction mixture to 6.0 to 8.0; and (4) a heating step wherein the mixed solvent is removed, and a base is added to adjust the pH of the reaction mixture to 8.0 to 9.0, and then a heat treatment is performed at 40 to 70° C. for 30 to 120 minutes.
    Type: Application
    Filed: July 23, 2015
    Publication date: September 7, 2017
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Atsushi SANUKI, Masanori OHZAKI, Miho SHIBATA