Patents by Inventor Yutaro Yamamoto

Yutaro Yamamoto 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).

  • Patent number: 11993732
    Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in a crystalline polyol compound constituting the urethane prepolymer (a1) is from 2.05 to 12. An NCO group/total active hydrogen group ratio is from 0.5 to 4. An isocyanate group/hydroxyl group ratio is from 2 to 12.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: May 28, 2024
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazushi Kimura, Hirokazu Kageyama, Yutaro Yamamoto
  • Patent number: 11981769
    Abstract: A polyurethane foam is obtained by foaming a blend containing a polyol and a polyisocyanate. The polyol contains a polycarbonate diol that has a polyester structure and a polycarbonate diol obtained by developing a polymerization reaction using 1,5-pentanediol and 1,6-hexanediol. The polyurethane foam has a density from 0.1 to 0.4 g/cm3.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 14, 2024
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Yutaro Yamamoto, Kazushi Kimura, Hirokazu Kageyama
  • Patent number: 11932787
    Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in the polyol compound is from 2.05 to 12. The equivalent ratio of the isocyanate group in the main agent (A) to an amino group in the polyamine compound (b2) is from 1.2 to 6. The equivalent ratio of the isocyanate group in the main agent (A) to the hydroxyl group in the non-crystalline polyol compound (b1) is from 2 to 12.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 19, 2024
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazushi Kimura, Hirokazu Kageyama, Yutaro Yamamoto
  • Patent number: 11916296
    Abstract: An antenna device, for a mobile body, of this disclosure includes an antenna configured to be installed in the mobile body, and a reflector having a reflection surface configured to change a beam direction of the antenna.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: February 27, 2024
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaro Miki, Suguru Yamagishi, Takanori Fukunaga, Ichiro Kuwayama, Toyohisa Takano, Hiroki Hirai, Norichika Oomi, Kosuke Sone, Yasuyuki Yamamoto
  • Patent number: 11845866
    Abstract: The present technology provide a rubber composition including: 100 parts by mass of a diene rubber, from 30 to 100 parts by mass of carbon black and/or a white filler, from 1 to 20 parts by mass of silicone-based microparticles that have an average particle size from 5 to 500 ?m and that are three-dimensionally crosslinked, from 0.1 to 10 parts by mass of a nonionic surfactant, and from 1 to 20 parts by mass of thermally expanding microcapsules.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 19, 2023
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Hirokazu Kageyama, Kazushi Kimura, Satoshi Mihara, Yutaro Yamamoto
  • Patent number: 11685190
    Abstract: A rubber composition for a tire according to an embodiment of the present technology includes: 100 parts by mass of a diene rubber and from 1 to 30 parts by mass of a thermally expandable microcapsule composite body, and the thermally expandable microcapsule composite body contains one or more thermally expandable microcapsules and an acrylonitrile butadiene copolymer and/or a crosslinked body thereof covering the one or more thermally expandable microcapsules.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 27, 2023
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Hirokazu Kageyama, Kazushi Kimura, Satoshi Mihara, Yutaro Yamamoto
  • Publication number: 20220056325
    Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in a crystalline polyol compound constituting the urethane prepolymer (a1) is from 2.05 to 12. An NCO group/total active hydrogen group ratio is from 0.5 to 4. An isocyanate group/hydroxyl group ratio is from 2 to 12.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 24, 2022
    Inventors: Kazushi KIMURA, Hirokazu KAGEYAMA, Yutaro YAMAMOTO
  • Publication number: 20220033695
    Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in the polyol compound is from 2.05 to 12. The equivalent ratio of the isocyanate group in the main agent (A) to an amino group in the polyamine compound (b2) is from 1.2 to 6. The equivalent ratio of the isocyanate group in the main agent (A) to the hydroxyl group in the non-crystalline polyol compound (b1) is from 2 to 12.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 3, 2022
    Inventors: Kazushi KIMURA, Hirokazu KAGEYAMA, Yutaro YAMAMOTO
  • Publication number: 20220033696
    Abstract: The two-part curable adhesive composition contains a main agent (A) containing a urethane prepolymer (a1) and a residual polyisocyanate (a2), and a curing agent (B) containing a polyol compound (b1) and a polyamine compound (b2). The urethane prepolymer (a1) is made by reacting in an equivalent ratio of an isocyanate group in a raw material polyisocyanate to a hydroxy group in a polycarbonate polyol being 2.05 or greater. The equivalent ratio of an isocyanate group in the main agent (A) to an active hydrogen group in the curing agent (B) is from 0.5 to 4.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 3, 2022
    Inventors: Hirokazu KAGEYAMA, Kazushi KIMURA, Yutaro YAMAMOTO
  • Publication number: 20210347933
    Abstract: A polyurethane foam is obtained by foaming a blend containing a polyol and a polyisocyanate. The polyol contains a polycarbonate diol that has a polyester structure and a polycarbonate diol obtained by developing a polymerization reaction using 1,5-pentanediol and 1,6-hexanediol. The polyurethane foam has a density from 0.1 to 0.4 g/cm3.
    Type: Application
    Filed: September 19, 2019
    Publication date: November 11, 2021
    Inventors: Yutaro YAMAMOTO, Kazushi KIMURA, Hirokazu KAGEYAMA
  • Publication number: 20210340418
    Abstract: The two-part curable adhesive composition contains a main agent (A) containing a urethane prepolymer (a1) and a residual polyisocyanate (a2), and a curing agent (B) containing a polyol compound (b1) and a polyamine compound (b2). The urethane prepolymer (a1) is made by reacting in an equivalent ratio of an isocyanate group in a raw material polyisocyanate to a hydroxy group in a polytetramethylene ether glycol being 2.05 or greater. The equivalent ratio of an isocyanate group in the main agent (A) to an active hydrogen group in the curing agent (B) is from 0.5 to 4.
    Type: Application
    Filed: September 27, 2019
    Publication date: November 4, 2021
    Inventors: Hirokazu KAGEYAMA, Kazushi KIMURA, Yutaro YAMAMOTO
  • Publication number: 20210047501
    Abstract: The present technology provide a rubber composition including: 100 parts by mass of a diene rubber, from 30 to 100 parts by mass of carbon black and/or a white filler, from 1 to 20 parts by mass of silicone-based microparticles that have an average particle size from 5 to 500 um and that are three-dimensionally crosslinked, from 0.1 to 10 parts by mass of a nonionic surfactant, and from 1 to 20 parts by mass of thermally expanding microcapsules.
    Type: Application
    Filed: March 11, 2019
    Publication date: February 18, 2021
    Inventors: Hirokazu Kageyama, Kazushi Kimura, Satoshi Mihara, Yutaro Yamamoto
  • Publication number: 20210023880
    Abstract: A rubber composition for a tire according to an embodiment of the present technology includes: 100 parts by mass of a diene rubber and from 1 to 30 parts by mass of a thermally expandable microcapsule composite body, and the thermally expandable microcapsule composite body contains one or more thermally expandable microcapsules and an acrylonitrile butadiene copolymer and/or a crosslinked body thereof covering the one or more thermally expandable microcapsules.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 28, 2021
    Inventors: Hirokazu Kageyama, Kazushi Kimura, Satoshi Mihara, Yutaro Yamamoto
  • Patent number: D993848
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: August 1, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yutaro Yamamoto, Junya Takahashi