Patents by Inventor Yuya HIRAMOTO

Yuya HIRAMOTO 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: 20240043722
    Abstract: Disclosed is a film-shaped adhesive. An embodiment of the film-shaped adhesive contains metal particles and has a shear viscosity at 110° C. of 30000 Pa·s or less. Another embodiment of the film-shaped adhesive contains metal particles and has a loss modulus at 110° C. of 200 kPa or less. Another embodiment of the film-shaped adhesive contains metal particles, a thermosetting resin, a curing agent, and an elastomer, in which a content of the metal particles based on the total amount of the metal particles, thermosetting resin, curing agent, and elastomer is 70.0% by mass or more, and a total content of the thermosetting resin and the curing agent is 13.0% by mass or more.
    Type: Application
    Filed: October 1, 2021
    Publication date: February 8, 2024
    Inventors: Takahiro KURODA, Yuya HIRAMOTO, Megumi KAMONO, Kohei TANIGUCHI, Yuya AKIYAMA, Kei ITAGAKI
  • Publication number: 20230395420
    Abstract: The present disclosure provides a semiconductor device. The semiconductor device includes a semiconductor chip; a support member having the semiconductor chip mounted thereon; and a bonding adhesive member provided between the semiconductor chip and the support member and adhering the semiconductor chip and the support member. The bonding adhesive member includes a sintered body of silver particles.
    Type: Application
    Filed: December 25, 2020
    Publication date: December 7, 2023
    Inventors: Yuya AKIYAMA, Kohei TANIGUCHI, Yuya HIRAMOTO, Megumi KAMONO, Kei ITAGAKI
  • Patent number: 11479667
    Abstract: A two-part curable urethane-based composition comprising a main agent (A); and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate modified product of a polyisocyanate compound (b), and a silane coupling agent (c) in a specified ratio, the curing agent (B) contains a polyol (d) having a hydroxyl value of 50 to 500 mgKOH/g and an amine catalyst (e) in a specified amount, a mixing mass ratio of the main agent (A) to the curing agent (B) is 3:1 to 10:1, and an equivalent ratio of NCO group/OH group in the main agent (A) and the curing agent (B), respectively, is 1.0 to 5.0.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 25, 2022
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Yuya Hiramoto, Hisao Matsumiya, Kazuhiko Mori
  • Patent number: 11180600
    Abstract: A two-part curable urethane composition comprising a main agent (A) and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate-modified polyisocyanate compound (b), and a silane coupling agent (c) at a specified ratio by mass; and the curing agent (B) contains a polyether polyol (d), a polyether polyol having 4 or more hydroxy groups (e), and an amine catalyst (f) at a specified ratio by mass.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 23, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Kazuhiko Mori, Yuya Hiramoto, Hisao Matsumiya
  • Publication number: 20200024449
    Abstract: A two-part curable urethane-based composition comprising a main agent (A); and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate modified product of a polyisocyanate compound (b), and a silane coupling agent (c) in a specified ratio, the curing agent (B) contains a polyol (d) having a hydroxyl value of 50 to 500 mgKOH/g and an amine catalyst (e) in a specified amount, a mixing mass ratio of the main agent (A) to the curing agent (B) is 3:1 to 10:1, and an equivalent ratio of NCO group/OH group in the main agent (A) and the curing agent (B), respectively, is 1.0 to 5.0.
    Type: Application
    Filed: March 29, 2017
    Publication date: January 23, 2020
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuya HIRAMOTO, Hisao MATSUMIYA, Kazuhiko MORI
  • Publication number: 20190292347
    Abstract: A two-part curable urethane composition comprising a main agent (A) containing a urethane prepolymer (a), and a curing agent (B) containing a polyether polyol (b) having a weight average molecular weight of 8000 or more and an amine catalyst (c), wherein the urethane prepolymer (a) is a reaction product of a polyether polyol (a-1) having a weight average molecular weight of 8000 or more and a diisocyanate (a-2), at least one of the main agent (A) and the curing agent (B) contains a carbon black (d) at a specified ratio by mass, and at least one of the main agent (A) and the curing agent (B) contains a silane coupling agent (e) at a specified ratio by mass.
    Type: Application
    Filed: November 30, 2016
    Publication date: September 26, 2019
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kazuhiko MORI, Hisao MATSUMIYA, Yuya HIRAMOTO, Hiroyuki SAKAI, Akihiro ITO
  • Publication number: 20190292300
    Abstract: A two-part curable urethane composition comprising a main agent (A) and a curing agent (B), wherein the main agent (A) contains a urethane prepolymer (a), an isocyanurate-modified polyisocyanate compound (b), and a silane coupling agent (c) at a specified ratio by mass; and the curing agent (B) contains a polyether polyol (d), a polyether polyol having 4 or more hydroxy groups (e), and an amine catalyst (f) at a specified ratio by mass.
    Type: Application
    Filed: November 30, 2016
    Publication date: September 26, 2019
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kazuhiko MORI, Yuya HIRAMOTO, Hisao MATSUMIYA