Patents by Inventor Shingi KUMAGAI

Shingi KUMAGAI 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).

  • Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using same
    Patent number: 9550865
    Abstract: An ion-immobilized metal oxide particle includes a metal oxide particle and an anion that itself includes a) a reactive group that consists of an alkoxysilyl group and b) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group, the anion being immobilized to the metal oxide particle via a silanol group derived from the reactive group. An elastomer includes the ion-immobilized metal oxide particle, and a transducer includes the elastomer.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: January 24, 2017
    Assignees: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Shigeaki Takamatsu, Ryosuke Matsuno, Shingi Kumagai, Yota Kokubo, Kazunobu Hashimoto, Hitoshi Yoshikawa, Atsushi Takahara, Hideyuki Otsuka
  • REACTIVE IONIC LIQUID, AND ION-IMMOBILIZED METAL OXIDE PARTICLE, ION-IMMOBILIZED ELASTOMER, AND TRANSDUCER USING SAME
    Publication number: 20160075835
    Abstract: An ion-immobilized metal oxide particle includes a metal oxide particle and an anion that itself includes a) a reactive group that consists of an alkoxysilyl group and b) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group, the anion being immobilized to the metal oxide particle via a silanol group derived from the reactive group. An elastomer includes the ion-immobilized metal oxide particle, and a transducer includes the elastomer.
    Type: Application
    Filed: November 3, 2015
    Publication date: March 17, 2016
    Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA
  • Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using same
    Patent number: 9212263
    Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 15, 2015
    Assignees: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Shigeaki Takamatsu, Ryosuke Matsuno, Shingi Kumagai, Yota Kokubo, Kazunobu Hashimoto, Hitoshi Yoshikawa, Atsushi Takahara, Hideyuki Otsuka
  • REACTIVE IONIC LIQUID, AND ION-IMMOBILIZED METAL OXIDE PARTICLE, ION-IMMOBILIZED ELASTOMER, AND TRANSDUCER USING SAME
    Publication number: 20140300247
    Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 9, 2014
    Inventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA