Patents by Inventor Mana Kajiwara

Mana Kajiwara 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).

  • Polyolefin microporous membrane with improved puncture elongation and thermomechanical properties and method for manufacturing the same
    Patent number: 11837693
    Abstract: A polyolefin microporous membrane has a puncture elongation of not more than 2.30 mm. The temperature of the stress inflection point is not less than 80.0° C., and the stress peak value is not more than 1.8 gin thermomechanical analysis (TMA) measurement of the transverse direction of the polyolefin microporous membrane.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: December 5, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Mana Kajiwara, Hiroshi Miyazawa
  • Polyolefin Microporous Membrane
    Publication number: 20200144577
    Abstract: A polyolefin microporous membrane has a puncture elongation of not more than 2.30 mm. The temperature of the stress inflection point is not less than 80.0° C., and the stress peak value is not more than 1.8 gin thermomechanical analysis (TMA) measurement of the transverse direction of the polyolefin microporous membrane.
    Type: Application
    Filed: August 31, 2018
    Publication date: May 7, 2020
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Mana Kajiwara, Hiroshi Miyazawa