Patents by Inventor Tomohiro NAKAZAKI

Tomohiro NAKAZAKI 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).

  • Patent number: 11285710
    Abstract: A multilayer body includes at least one layer (A) made of a polycarbonate resin (A) whose main repeating units include a unit (a-1) composed of an ether diol residue represented by the following formula (1) and a unit (a-2) composed of a diol residue represented by the following formula (2), and at least one layer (B) containing an aromatic polycarbonate resin (B), wherein the molar ratio of the unit (a-1) is 50 to 96 mol % and the molar ratio of the unit (a-2) is 4 to 50 mol %, with respect to 100 mol % of the total repeating units of the polycarbonate resin (A) and the proportion of the aromatic polycarbonate resin (B) in the layer (B) containing an aromatic polycarbonate resin (B) is 30% by weight or more, and the multilayer body is excellent in heat resistance, impact resistance, surface hardness, adhesion, and chemical resistance.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 29, 2022
    Assignee: TEIJIN LIMITED
    Inventors: Tomohiro Nakazaki, Kenta Imazato, Katsuhiro Yamanaka
  • Publication number: 20200316928
    Abstract: A multilayer body includes at least one layer (A) made of a polycarbonate resin (A) whose main repeating units include a unit (a-1) composed of an ether diol residue represented by the following formula (1) and a unit (a-2) composed of a diol residue represented by the following formula (2), and at least one layer (B) containing an aromatic polycarbonate resin (B), wherein the molar ratio of the unit (a-1) is 50 to 96 mol % and the molar ratio of the unit (a-2) is 4 to 50 mol %, with respect to 100 mol % of the total repeating units of the polycarbonate resin (A) and the proportion of the aromatic polycarbonate resin (B) in the layer (B) containing an aromatic polycarbonate resin (B) is 30% by weight or more, and the multilayer body is excellent in heat resistance, impact resistance, surface hardness, adhesion, and chemical resistance.
    Type: Application
    Filed: December 12, 2018
    Publication date: October 8, 2020
    Applicant: TEIJIN LIMITED
    Inventors: Tomohiro NAKAZAKI, Kenta IMAZATO, Katsuhiro YAMANAKA