Patents by Inventor Yoritaka Yasuda

Yoritaka Yasuda 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: 20210324138
    Abstract: A polyether electrical-resistance adjusting agent of the present invention comprises a polymer that contains 10 to 60 mol % of a structural unit derived from an epihalohydrin (a), 30 to 89 mol % of a structural unit derived from an alkylene oxide (b), and 1 to 15 mol % of a structural unit derived from an ethylenically unsaturated group-containing monomer (c), and that has a weight-average molecular weight of 1,300,000 or less.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 21, 2021
    Applicant: OSAKA SODA CO., LTD.
    Inventors: Kazuki UNO, Yoritaka YASUDA, Naoya YAJIMA, Shinichi UDO
  • Patent number: 10158082
    Abstract: A semiconducting component for an electrographic device, comprising a crosslinked body obtained by crosslinking a copolymer containing 9.9 to 39.9% by mole of structural units (a) originating from an epihalohydrin, 60 to 90% by mole of structural units (b) originating from an alkylene oxide, and 0.1 to 10% by mole of structural units (c) originating from a cyclic ether monomer having a (meth)acryloyl or alkoxysilyl group with use of reactivity of the structural units originating from the cyclic ether monomer having a (meth)acryloyl or alkoxysilyl group.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: December 18, 2018
    Assignee: OSAKA SODA CO., LTD.
    Inventors: Kazuki Uno, Kohji Ohnuki, Shinichi Udo, Yoritaka Yasuda
  • Publication number: 20160225997
    Abstract: A semiconducting component for an electrographic device, comprising a crosslinked body obtained by crosslinking a copolymer containing 9.9 to 39.9% by mole of structural units (a) originating from an epihalohydrin, 60 to 90% by mole of structural units (b) originating from an alkylene oxide, and 0.1 to 10% by mole of structural units (c) originating from a cyclic ether monomer having a (meth)acryloyl or alkoxysilyl group with use of reactivity of the structural units originating from the cyclic ether monomer having a (meth)acryloyl or alkoxysilyl group.
    Type: Application
    Filed: October 10, 2014
    Publication date: August 4, 2016
    Inventors: Kazuki Uno, Kohji Ohnuki, Shinichi Udo, Yoritaka Yasuda
  • Patent number: 9404022
    Abstract: A composition for vulcanizing adhesion, comprises a rubber (a), at least one compound (b) selected from the group consisting of salts of 1,8-diazabicyclo(5.4.0) undecene-7, salts of 1,5-diazabicyclo(4.3.0)-nonene-5, 1,8-diazabicyclo(5.4.0) undecene-7, and 1,5-diazabicyclo(4.3.0)-nonene-5, and at least one water-carrying substance (c) selected from water-absorbed substances and hydrated substances.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 2, 2016
    Assignee: OSAKA SODA CO., LTD.
    Inventors: Koshiro Hamaguchi, Motoki Kitagawa, Toyofumi Otaka, Taro Ozaki, Yoritaka Yasuda
  • Patent number: 8920894
    Abstract: Disclosed is a vulcanized rubber laminate, wherein a thermoplastic resin layer and an unvulcanized epichlorohydrin rubber composition layer containing a specific maleimide compound, vulcanizing agent, and acid acceptor are heated and bonded. Specifically disclosed is a laminate configured by heating and bonding an unvulcanized epichlorohydrin rubber composition layer (A) and a thermoplastic resin (B), wherein the unvulcanized epichlorohydrin rubber composition contains: an epichlorohydrin rubber (a), a compound containing one or more maleimide group within the molecule (b), a vulcanizing agent (c), and an acid acceptor (d).
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: December 30, 2014
    Assignee: Daiso Co., Ltd.
    Inventors: Toyofumi Otaka, Koushiro Hamaguchi, Yoritaka Yasuda, Taro Ozaki
  • Patent number: 8871118
    Abstract: The present invention provides a rubber composition, which realizes low hardness and low compression set while maintaining semi-conductivity, and a vulcanizate thereof. Also the rubber composition can be obtained by blending an epichlorohydrin-based rubber having satisfactory semi-conductivity and an acrylonitrile-butadiene-based rubber as a reactive plasticizer, and also blending zinc oxide, a thiuram-based compound and a quinoxaline-based compound.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: October 28, 2014
    Assignee: Daiso Co., Ltd.
    Inventors: Yoritaka Yasuda, Toyofumi Otaka, Tadahiro Ono, Koushiro Hamaguchi
  • Patent number: 8735503
    Abstract: A composition for a semiconductive rubber, comprising an epichlorohydrin-based rubber (a), an ethylene oxide-modified (meth)acrylate (b), and at least one kind of a crosslinking agent (c) selected from the group consisting of a sulfur-based crosslinking agent, a quinoxaline-based crosslinking agent and a triazine-based crosslinking agent.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: May 27, 2014
    Assignee: Daiso Co., Ltd.
    Inventors: Kohji Ohnuki, Yoritaka Yasuda, Taro Ozaki
  • Publication number: 20130236670
    Abstract: A composition for vulcanizing adhesion, comprises a rubber (a), at least one compound (b) selected from the group consisting of salts of 1,8-diazabicyclo(5.4.0) undecene-7, salts of 1,5-diazabicyclo(4.3.0)-nonene-5, 1,8-diazabicyclo(5.4.0) undecene-7, and 1,5-diazabicyclo(4.3.0)-nonene-5, and at least one water-carrying substance (c) selected from water-absorbed substances and hydrated substances.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 12, 2013
    Applicant: DAISO CO., LTD.
    Inventors: Koshiro Hamaguchi, Motoki Kitagawa, Toyofumi Otaka, Taro Ozaki, Yoritaka Yasuda
  • Publication number: 20120208966
    Abstract: A composition for a semiconductive rubber, comprising an epichlorohydrin-based rubber (a), an ethylene oxide-modified (meth)acrylate (b), and at least one kind of a crosslinking agent (c) selected from the group consisting of a sulfur-based crosslinking agent, a quinoxaline-based crosslinking agent and a triazine-based crosslinking agent.
    Type: Application
    Filed: October 14, 2010
    Publication date: August 16, 2012
    Applicant: DAISO CO., LTD.
    Inventors: Kohji Ohnuki, Yoritaka Yasuda, Taro Ozaki
  • Publication number: 20120141712
    Abstract: Disclosed is a vulcanized rubber laminate, wherein a thermoplastic resin layer and an unvulcanized epichlorohydrin rubber composition layer containing a specific maleimide compound, vulcanizing agent, and acid acceptor are heated and bonded. Specifically disclosed is a laminate configured by heating and bonding an unvulcanized epichlorohydrin rubber composition layer (A) and a thermoplastic resin (B), wherein the unvulcanized epichlorohydrin rubber composition contains: an epichlorohydrin rubber (a), a compound containing one or more maleimide group within the molecule (b), a vulcanizing agent (c), and an acid acceptor (d).
    Type: Application
    Filed: June 1, 2010
    Publication date: June 7, 2012
    Applicant: DAISO CO., LTD.
    Inventors: Toyofumi Otaka, Koushiro Hamaguchi, Yoritaka Yasuda, Taro Ozaki
  • Publication number: 20110210296
    Abstract: The present invention provides a rubber composition, which realizes low hardness and low compression set while maintaining semi-conductivity, and a vulcanizate thereof. Also the rubber composition can be obtained by blending an epichlorohydrin-based rubber having satisfactory semi-conductivity and an acrylonitrile-butadiene-based rubber as a reactive plasticizer, and also blending zinc oxide, a thiuram-based compound and a quinoxaline-based compound.
    Type: Application
    Filed: October 28, 2009
    Publication date: September 1, 2011
    Applicant: DAISO CO., LTD.
    Inventors: Yoritaka Yasuda, Toyofumi Otaka, Tadahiro Ono, Koushiro Hamaguchi