Patents by Inventor Mitsuto Hisashige

Mitsuto Hisashige 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).

  • Heating and cooling system
    Patent number: 11371757
    Abstract: Provided is a highly efficient heating and cooling system.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 28, 2022
    Assignee: E.T.L CORPORATION
    Inventors: Naoki Sugiyama, Mitsuto Hisashige, Fumiharu Kurita, Tomoko Okamoto
  • HEATING AND COOLING SYSTEM
    Publication number: 20210041150
    Abstract: Provided is a highly efficient heating and cooling system.
    Type: Application
    Filed: March 13, 2018
    Publication date: February 11, 2021
    Applicant: E.T.L CORPORATION
    Inventors: Naoki SUGIYAMA, Mitsuto HISASHIGE, Fumiharu KURITA, Tomoko OKAMOTO
  • Process for preparing copolymer of acrylonitrile and aromatic vinyl compound
    Patent number: 3931128
    Abstract: A process for preparing a copolymer of acrylonitrile and an aromatic vinyl compound such as styrene having a well-balanced combination of color, transparency and softening point by suspension polymerization in the presence of about 0.01 to 0.5% of an azo-type catalyst and about 0.005 to 0.2% of an organic peroxide catalyst free from a benzene ring, both based on the weight of the monomers where the polymerization is carried out at a temperature of 90.degree. to 110.degree.C until a monomer conversion of about 70% is obtained, and when the monomer conversion exceeds 70%, the polymerization is carried out at a temperature of 110.degree. to 140.degree.C.
    Type: Grant
    Filed: April 30, 1974
    Date of Patent: January 6, 1976
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hidehiko Takizawa, Mitsuto Hisashige