Patents by Inventor Tatsuhiro Hiraoka

Tatsuhiro Hiraoka 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).

  • Rubber-containing graft polymer, resin composition containing rubber-containing graft polymer, and shaped article of same
    Patent number: 11634574
    Abstract: Provided is a rubber-containing graft polymer which is excellent in mechanical strength such as weld strength or impact strength, required as a rubber-containing graft polymer. A rubber-containing graft polymer (A) of the present invention is a rubber-containing graft polymer having a graft chain, in which when the rubber-containing graft polymer is mixed with an organic solvent and separated into an organic solvent insoluble component and an organic solvent soluble component, a caprolactone unit is contained in a graft chain contained in the organic solvent insoluble component.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: April 25, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Misaki Hagi, Shinji Matsuoka, Masashi Iimori, Tatsuhiro Hiraoka, Yuuta Maenaka
  • RUBBER-CONTAINING GRAFT POLYMER, RESIN COMPOSITION CONTAINING RUBBER-CONTAINING GRAFT POLYMER, AND SHAPED ARTICLE OF SAME
    Publication number: 20200299502
    Abstract: Provided is a rubber-containing graft polymer which is excellent in mechanical strength such as weld strength or impact strength, required as a rubber-containing graft polymer. A rubber-containing graft polymer (A) of the present invention is a rubber-containing graft polymer having a graft chain, in which when the rubber-containing graft polymer is mixed with an organic solvent and separated into an organic solvent insoluble component and an organic solvent soluble component, a caprolactone unit is contained in a graft chain contained in the organic solvent insoluble component.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Misaki HAGI, Shinji MATSUOKA, Masashi IIMORI, Tatsuhiro HIRAOKA, Yuuta MAENAKA
  • Resin composition, molded article and film including vinylidene fluoride-based resin
    Patent number: 10435553
    Abstract: The present invention provides a resin composition including a vinylidene fluoride-based resin (A), having a crystal melting enthalpy of 10 to 45 J/g as measured with a differential scanning calorimeter, and having (2) IHv of 60 or less as obtained by (1) a light scattering measurement.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 8, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tatsuhiro Hiraoka, Masashi Ikawa, Eiko Okamoto, Hiroshi Hosokawa, Kikue Irie
  • Resin Composition, Molded Article and Film Including Vinylidene Fluoride-Based Resin
    Publication number: 20180208758
    Abstract: The present invention provides a resin composition including a vinylidene fluoride-based resin (A), having a crystal melting enthalpy of 10 to 45 J/g as measured with a differential scanning calorimeter, and having (2) IHv of 60 or less as obtained by (1) a light scattering measurement.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 26, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Tatsuhiro Hiraoka, Masashi Ikawa, Eiko Okamoto, Hiroshi Hosokawa, Kikue Irie