Patents by Inventor Saori Tanizaki

Saori Tanizaki 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).

  • Separator for battery, and battery and method for producing battery including the same
    Patent number: 8652671
    Abstract: A separator for a battery includes a porous polymer film having a first surface and a second surface opposite to the first surface, wherein the first surface has openings distributed thereon communicating with pores of the porous polymer film, and the ratio of the total area of the openings to the area of the first surface is 89% or more and 96% or less. The diameters of the openings may be within the range of 0.8 ?m or more and 40 ?m or less. A region with a predetermined thickness including at least the first surface of the porous polymer film preferably includes at least one selected from the group consisting of polypropylene, and a copolymer of propylene and another copolymerizable monomer.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Saori Tanizaki, Norihiro Yamamoto, Yasushi Nakagiri, Yasuyuki Shibano
  • SEPARATOR FOR BATTERY, AND BATTERY AND METHOD FOR PRODUCING BATTERY INCLUDING THE SAME
    Publication number: 20120107656
    Abstract: A separator for a battery includes a porous polymer film having a first surface and a second surface opposite to the first surface, wherein the first surface has openings distributed thereon communicating with pores of the porous polymer film, and the ratio of the total area of the openings to the area of the first surface is 89% or more and 96% or less. The diameters of the openings may be within the range of 0.8 ?m or more and 40 ?m or less. A region with a predetermined thickness including at least the first surface of the porous polymer film preferably includes at least one selected from the group consisting of polypropylene, and a copolymer of propylene and another copolymerizable monomer.
    Type: Application
    Filed: February 24, 2011
    Publication date: May 3, 2012
    Inventors: Saori Tanizaki, Norihiro Yamamoto, Yasushi Nakagiri, Yasuyuki Shibano