Patents by Inventor Yoshiko KIYOHARA

Yoshiko KIYOHARA 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).

  • Publication number: 20240128481
    Abstract: A gasket member for a solid polymer fuel cell, the gasket member including at least a laminate provided with a base material layer, and an adhesion layer positioned on both sides of the base material layer, wherein the laminate has a percentage retention of elongation at break of at least 60% after being left for 300 hours in 120° C. water.
    Type: Application
    Filed: February 10, 2022
    Publication date: April 18, 2024
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Kazufumi KODANI, Tsubasa KAGATA, Atsuko TAKAHAGI, Masayasu YAMAZAKI, Yoshiko KIYOHARA, Takashi NAKAMURA, Naoto TABUCHI
  • Publication number: 20230335835
    Abstract: This exterior material for a power storage device is constituted of at least an outside layer, a barrier layer, and an inside layer, in that order from the outer side. The inside layer includes a compound represented by general formula (A). (In general formula (A), R11 and R12 each independently represent an alkyl group having 1 to 18 carbons, or a phenyl group that optionally has a substituent.
    Type: Application
    Filed: September 8, 2021
    Publication date: October 19, 2023
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yoshiko KIYOHARA, Atsuko TAKAHAGI, Kazufumi KODANI, Daisuke YASUDA
  • Publication number: 20230276799
    Abstract: Provided is a disinfectant composition exhibiting high disinfecting ability even if containing no disinfecting base agents that have conventionally been widely used or containing the disinfecting base agents in a reduced amount. The disinfectant composition contains an internal olefin sulfonate with 8 or more and 24 or less carbons; one or more organic acids selected from monocarboxylic acids, hydroxy acids, and dicarboxylic acids; and water.
    Type: Application
    Filed: September 29, 2021
    Publication date: September 7, 2023
    Applicant: KAO CORPORATION
    Inventors: Hiroko KAWAGUCHI, Yoshiko KIYOHARA, Takanori SAITO
  • Patent number: 9284426
    Abstract: A curable resin composition for a hard coat layer capable of forming a hard coat layer having high hardness even with thin thickness and/or excellent in abrasion resistance and hardness, and a hard coat film using the curable resin composition.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: March 15, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Tomoyuki Horio, Takashi Kuroda, Emi Shimano, Kana Yamamoto, Yoshiko Kiyohara, Keiko Tasaki
  • Publication number: 20100104858
    Abstract: A curable resin composition for a hard coat layer capable of forming a hard coat layer having high hardness even with thin thickness and/or excellent in abrasion resistance and hardness, and a hard coat film using the curable resin composition are provided. A hard coat film in which a hard coat layer is provided on one side of a transparent substrate film, wherein the hard coat layer comprises a matrix in a crosslinked state and an aggregate in which 3 to 100 silica fine particles having an average primary particle diameter of 1 to 100 nm are aggregated, and wherein the aggregate is cross-linked to the matrix, and an irregularly shaped silica fine particle constituted with 3 to 20 silica fine particles having an average primary particle diameter of 1 to 100 nm connected to each other by inorganic chemical bonding is contained as a part of the aggregates. The hard coat layer further contains a silica fine particle preferably.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 29, 2010
    Inventors: Tomoyuki HORIO, Takashi KURODA, Emi SHIMANO, Kana YAMAMOTO, Yoshiko KIYOHARA, Keiko TASAKI
  • Publication number: 20080233281
    Abstract: A composition for an aligning film that may have significantly improved adhesion to an optical functional layer (a liquid crystal layer), may significantly improve the alignment of a liquid crystalline compound, and may have excellent durability. The composition for an aligning film is used in a process for producing an optical element which includes a plastic support and, providing on the surface of the plastic support in the following order, an aligning film, and at least one optical functional layer containing a liquid crystalline compound composition. The composition can include A) a nonionic water-soluble etherified polysaccharide and B) water and/or a lower alcohol solvent.
    Type: Application
    Filed: April 29, 2008
    Publication date: September 25, 2008
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshiko Kiyohara, Runa Nakamura, Naoya Ogata
  • Publication number: 20050129876
    Abstract: Disclosed is a composition for an aligning film that can form an aligning film which has significantly improved adhesion to an optical functional layer (a liquid crystal layer), can significantly improve the alignment of a liquid crystalline compound, and has excellent durability. The composition for an aligning film is used in the production of an optical element which comprises a plastic support and, provided on the surface of the plastic support in the following order, an aligning film, and at least one optical functional layer containing a liquid crystalline compound. The composition comprises A) a nonionic water-soluble etherified polysaccharide and B) water and/or a lower alcohol solvent.
    Type: Application
    Filed: June 3, 2004
    Publication date: June 16, 2005
    Inventors: Yoshiko Kiyohara, Runa Nakamura, Naoya Ogata