Patents by Inventor Kei NAGAYAMA

Kei NAGAYAMA 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: 20240150563
    Abstract: A resin composition for a laminated glass interlayer film or a solar cell encapsulant contains an ethylene-unsaturated ester copolymer (A) and a crosslinking agent (B). When the torque of the resin composition is measured over time at 130° C. using a moving die rheometer, the torque value 60 minutes after the start of measurement is defined as T100 [dN·m], the torque value of 10% of T100 is defined as T10, the torque value of 50% of T100 is defined as T50, the minimum torque value during measurement is defined as Tmin, the time to reach T10 from the start of measurement is defined as X [min], and the time to reach T50 from the start of measurement is defined as Y [min], the crosslinking rate represented by (T50?T10)/(Y?X) (where T50=(100?Tmin)×0.5+Tmin, T10=(T100?Tmin)×0.1+Tmin) exceeds 0.01 dN·m/min and 0.25 dN·m/min or less.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 9, 2024
    Inventors: Kana FUKUYAMA, Norihiko SATO, Harunobu KOMATSU, Kei NAGAYAMA, Motoaki ISOKAWA
  • Publication number: 20240079184
    Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 7, 2024
    Inventors: Kei HIROTA, Kyohei IWAOKA, Hitoshi FUKUI, Daisuke USA, Kouta MUNEYASU, Hiroki NAGAYAMA
  • Patent number: 11628651
    Abstract: Provided is a resin composition used for forming a laminated glass interlayer film or a solar cell encapsulant, the resin composition including an ionomer (A) of an ethylene-unsaturated carboxylic acid-based copolymer, wherein metal ions constituting the ionomer (A) of the ethylene-unsaturated carboxylic acid-based copolymer includes two or more kinds of polyvalent metal ions.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: April 18, 2023
    Assignee: DOW-MITSUI POLYCHEMICALS CO., LTD.
    Inventors: Harunobu Komatsu, Kei Nagayama, Norihiko Sato, Kana Fukuyama, Motoaki Isokawa
  • Publication number: 20230006081
    Abstract: A resin composition for a solar cell encapsulant that is used for forming a solar cell encapsulant, the resin composition including at least one kind of ethylene-polar monomer copolymer (A1) selected from an ethylene-vinyl ester copolymer and an ethylene-unsaturated carboxylic acid ester copolymer, an epoxy group-containing ethylene-based copolymer (A2) (excluding the ethylene-polar monomer copolymer (A1)), an ethylene-?-olefin copolymer (B), and a metal inactivating agent (C).
    Type: Application
    Filed: December 9, 2020
    Publication date: January 5, 2023
    Inventors: Kei Nagayama, Kana Kukita, Motoaki Isokawa
  • Publication number: 20200347215
    Abstract: A resin composition for a laminated glass interlayer film or a solar cell encapsulant contains an ethylene-unsaturated ester copolymer (A) and a crosslinking agent (B). When the torque of the resin composition is measured over time at 130° C. using a moving die rheometer, the torque value 60 minutes after the start of measurement is defined as T100 [dN·m], the torque value of 10% of T100 is defined as T10, the torque value of 50% of T100 is defined as T50, the minimum torque value during measurement is defined as Tmin, the time to reach T10 from the start of measurement is defined as X [min], and the time to reach T50 from the start of measurement is defined as Y [min], the crosslinking rate represented by (T50?T10)/(Y?X) (where T50=(100?Tmin)×0.5+Tmin, T10=(T100?Tmin)×0.1+Tmin) exceeds 0.01 dN·m/min and 0.25 dN·m/min or less.
    Type: Application
    Filed: February 8, 2019
    Publication date: November 5, 2020
    Inventors: Kana FUKUYAMA, Norihiko SATO, Harunobu KOMATSU, Kei NAGAYAMA, Motoaki ISOKAWA
  • Publication number: 20200277418
    Abstract: Provided is a resin composition used for forming a laminated glass interlayer film or a solar cell encapsulant, the resin composition including an ionomer (A) of an ethylene-unsaturated carboxylic acid-based copolymer, wherein metal ions constituting the ionomer (A) of the ethylene-unsaturated carboxylic acid-based copolymer includes two or more kinds of polyvalent metal ions.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Inventors: Harunobu KOMATSU, Kei NAGAYAMA, Norihiko SATO, Kana FUKUYAMA, Motoaki ISOKAWA