Patents by Inventor Hideyasu Nakajima

Hideyasu Nakajima 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: 20220407175
    Abstract: There are provided a thermally expandable fire-resistant material for battery pack and a fire-resistant sheet for battery pack, which have high flame retardancy and thermal insulation properties to thermal runaway and ignition of on-vehicle batteries. The thermally expandable fire-resistant material for battery pack is one to be used for a battery pack to be mounted on vehicles, and contains a resin and a thermally expandable compound, and has an expansion ratio in a case where heated at 600° C. of 2.5 times or more.
    Type: Application
    Filed: November 19, 2020
    Publication date: December 22, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Shingo MIYATA, Akihito DOHI, Michio SHIMAMOTO, Hideyasu NAKAJIMA
  • Patent number: 8318377
    Abstract: A membrane-electrode junction agent, a proton conducting membrane having a junction layer, a membrane-electrode assembly, a polymer electrolyte fuel cell, and a manufacturing method of the membrane-electrode assembly, which enhance the power generation performance, realize the high fuel barrier property, and are capable of enhancing the joint strength between the membrane and the electrodes, is provided. A membrane-electrode junction agent that joins a proton conducting membrane and electrodes arranged on both surfaces of the proton conducting membrane to each other, the membrane-electrode junction agent including: a cross-linked compound (X) having a silicon-oxygen bond; a polymer material (Y) containing an acid group; and a hydrophilic resin (Z) containing no acid group.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: November 27, 2012
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Toshihito Miyami, Yoshiharu Konno, Hideyasu Nakajima, Masashi Kanoh
  • Patent number: 8293407
    Abstract: An electrode which can be used in a fuel cell having improved power generation performance and high durability, and a fuel cell having such an electrode, are provided. An electrode having catalyst layers arranged on both surfaces of an electrolyte membrane, wherein the electrode is characterized in that an electrode binder used for constituting the catalyst layers contains a cross-linked compound (X) having a silicon-oxygen bond, a polymer material (Y) containing an acid group, and an aqueous dispersion (Z) containing a thermoplastic resin.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 23, 2012
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Yoshiharu Konno, Toshihito Miyama, Hideyasu Nakajima, Masashi Kanoh
  • Publication number: 20100119908
    Abstract: A proton conducting membrane, a membrane-electrode assembly, and a polymer electrolyte fuel cell, which can realize high impact resistance and high polar solvent resistance as well as high proton conductivity, at the same time, can improve adhesion to an electrode, and can improve power generation performance, are provided. A proton conducting membrane includes a silicon-oxygen bonding structure (A) containing a cross-linked structure formed by a silicon-oxygen bond, and an acid group-containing structure (B) covalently bonded to a silane compound and containing an acid group, which are coupled to each other by a silicon—oxygen bond, wherein the acid group-containing structure (B) includes a structure in which a silane compound (?) having a polymerizable unsaturated double bond and an acid group-containing compound (?) having an acid group and a polymerizable unsaturated double bond are covalently bonded to each other.
    Type: Application
    Filed: February 29, 2008
    Publication date: May 13, 2010
    Applicant: Sekisui Chemical Co., Ltd.
    Inventors: Hideyasu Nakajima, Toshihito Miyama, Yoshiharu Konno, Masashi Kanoh
  • Publication number: 20100092840
    Abstract: An electrode which can be used in a fuel cell having improved power generation performance and high durability, and a fuel cell having such an electrode, are provided. An electrode having catalyst layers arranged on both surfaces of an electrolyte membrane, wherein the electrode is characterized in that an electrode binder used for constituting the catalyst layers contains a cross-linked compound (X) having a silicon-oxygen bond, a polymer material (Y) containing an acid group, and an aqueous dispersion (Z) containing a thermoplastic resin.
    Type: Application
    Filed: March 13, 2008
    Publication date: April 15, 2010
    Applicant: Sekisui Chemical Co., Ltd.
    Inventors: Yoshiharu Konno, Toshihito Miyama, Hideyasu Nakajima, Masashi Kanoh
  • Publication number: 20100047659
    Abstract: A membrane-electrode junction agent, a proton conducting membrane having a junction layer, a membrane-electrode assembly, a polymer electrolyte fuel cell, and a manufacturing method of the membrane-electrode assembly, which enhance the power generation performance, realize the high fuel barrier property, and are capable of enhancing the joint strength between the membrane and the electrodes, is provided. A membrane-electrode junction agent that joins a proton conducting membrane and electrodes arranged on both surfaces of the proton conducting membrane to each other, the membrane-electrode junction agent including: a cross-linked compound (X) having a silicon-oxygen bond; a polymer material (Y) containing an acid group; and a hydrophilic resin (Z) containing no acid group.
    Type: Application
    Filed: March 12, 2008
    Publication date: February 25, 2010
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Toshihito Miyama, Yoshiharu Konno, Hideyasu Nakajima, Masashi Kanoh
  • Publication number: 20090061117
    Abstract: It is an object of the present invention to provide a sealant for a One prop Fill process which hardly causes a peeling phenomenon between the sealant and a substrate in production of liquid crystal display device since the sealant has excellent adhesion to the substrate, and which is most suitable for producing a liquid crystal display device having low color irregularity in liquid crystal display since the sealant does not cause liquid crystal contamination, and relates to a sealant for a One prop Fill process, in which in production of liquid crystal display device by a One prop Fill process, even a portion where light may be not directly irradiated can be adequately cured, a liquid crystal is not deteriorated by ultraviolet light to be irradiated in curing the sealant, and high display quality and high reliability of the liquid crystal display device can be realized, a vertically conducting material, and a liquid crystal display device obtained by using these.
    Type: Application
    Filed: May 8, 2006
    Publication date: March 5, 2009
    Inventors: Yuichi Oyama, Hideyasu Nakajima, Takashi Watanabe, Takuya Yamamoto, Mitsuru Tanikawa