Patents by Inventor Mitsuteru HOSAKA

Mitsuteru HOSAKA 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 of disintegrating pulp for use in cellulose acetate production and method of producing cellulose acetate
    Patent number: 10954314
    Abstract: A method of disintegrating pulp for use in cellulose acetate production includes: a primary disintegration step of disintegrating a pulp sheet into pulp pieces having an average area of not more than 45 cm2; and a secondary disintegration step of disintegrating the pulp pieces with an impact shock exerted by a jet mill (20). The jet mill (20) includes: a cylindrical casing (21) provided with an inlet (21d) and an outlet (21e); and a rotor (25) including a plurality of blades (25a) provided on its outer peripheral portion, the plurality of blades (25a) facing an inner peripheral surface of the casing (21).
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 23, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Mitsuteru Hosaka, Toshinori Okano, Yuji Ida
  • METHOD OF DISINTEGRATING PULP FOR USE IN CELLULOSE ACETATE PRODUCTION AND METHOD OF PRODUCING CELLULOSE ACETATE
    Publication number: 20170145118
    Abstract: A method of disintegrating pulp for use in cellulose acetate production includes: a primary disintegration step of disintegrating a pulp sheet into pulp pieces having an average area of not more than 45 cm2; and a secondary disintegration step of disintegrating the pulp pieces with an impact shock exerted by a jet mill (20). The jet mill (20) includes: a cylindrical casing (21) provided with an inlet (21d) and an outlet (21e); and a rotor (25) including a plurality of blades (25a) provided on its outer peripheral portion, the plurality of blades (25a) facing an inner peripheral surface of the casing (21).
    Type: Application
    Filed: July 14, 2014
    Publication date: May 25, 2017
    Applicant: DAICEL CORPORATION
    Inventors: Mitsuteru HOSAKA, Toshinori OKANO, Yuji IDA