Patents by Inventor Shuji UDAGAWA

Shuji UDAGAWA 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: 10676611
    Abstract: The purpose of the present invention is to provide a prepreg which satisfies one of a)-c): a) having superior storage stability and capable of providing a fiber-reinforced composite material having superior mechanical properties; b) capable of providing a fiber-reinforced composite material having superior mechanical properties, and the obtained fiber-reinforced composite material has superior appearance quality; and c) having superior storage stability, generating less amount of heat when cured, and enabling the cure extent and the viscosity in the B-stage state to be flexibly controlled. To achieve the purpose, the present invention provides a prepreg including reinforced fibers and an epoxy resin composition which contains an epoxy resin and a curing agent represented by a specific chemical formula, and which satisfies a specific condition.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: June 9, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Eiki Takahashi, Daisuke Konishi, Noriyuki Hirano, Tatsuya Fujita, Shuji Udagawa
  • Publication number: 20190249002
    Abstract: The purpose of the present invention is to provide a prepreg which satisfies one of a)-c): a) having superior storage stability and capable of providing a fiber-reinforced composite material having superior mechanical properties; b) capable of providing a fiber-reinforced composite material having superior mechanical properties, and the obtained fiber-reinforced composite material has superior appearance quality; and c) having superior storage stability, generating less amount of heat when cured, and enabling the cure extent and the viscosity in the B-stage state to be flexibly controlled. To achieve the purpose, the present invention provides a prepreg including reinforced fibers and an epoxy resin composition which contains an epoxy resin and a curing agent represented by a specific chemical formula, and which satisfies a specific condition.
    Type: Application
    Filed: July 20, 2017
    Publication date: August 15, 2019
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Eiki Takahashi, Daisuke Konishi, Noriyuki Hirano, Tatsuya Fujita, Shuji Udagawa
  • Patent number: 10253014
    Abstract: A cyclic amine derivative represented by a general formula (I) or a pharmacologically acceptable salt thereof: wherein n represents 1 or 3, R1 represents an alkyl group having 1 to 6 carbon atoms unsubstituted, substituted with a halogen atom or substituted with an alkyloxy group having 1 to 4 carbon atoms and R2 represents a hydrogen atom or a halogen atom.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: April 9, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Yuji Osada, Naoki Izumimoto, Yasuhiro Morita, Shuji Udagawa, Katsuhiko Iseki, Tomoya Miyoshi, Shunsuke Iwano
  • Patent number: 10173999
    Abstract: A compound exerts an analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by the following general formula, or a pharmacologically acceptable salt thereof: Methods using the compound including the cyclic amine derivative or a pharmacologically acceptable salt thereof to treat pain, neuropathic pain and fibromyalgia syndrome.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 8, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Tadamasa Arai, Yasuhiro Morita, Shuji Udagawa, Katsuhiko Iseki, Naoki Izumimoto
  • Patent number: 10117853
    Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by general formula or a pharmacologically acceptable salt thereof: A method of treating neuropathic pain includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal. A method of treating fibromyalgia syndrome includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 6, 2018
    Assignee: Toray Industries, Inc.
    Inventors: Shuji Udagawa, Yasuhiro Morita, Naoki Izumimoto, Katsuhiko Iseki, Shunsuke Iwano, Tomoya Miyoshi, Yuji Osada, Tetsuro Koreeda, Masanori Murakami, Motohiro Shiraki, Kei Takahashi, Keiyu Oshida, Eriko Higashi
  • Publication number: 20180104221
    Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by general formula or a pharmacologically acceptable salt thereof A method of treating neuropathic pain includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal. A method of treating fibromyalgia syndrome includes administering a therapeutically effective amount of the cyclic amine derivative to a mammal.
    Type: Application
    Filed: March 24, 2016
    Publication date: April 19, 2018
    Inventors: Shuji Udagawa, Yasuhiro Morita, Naoki Izumimoto, Katsuhiko Iseki, Shunsuke Iwano, Tomoya Miyoshi, Yuji Osada, Tetsuro Koreeda, Masanori Murakami, Motohiro Shiraki, Kei Takahashi, Keiyu Oshida, Eriko Higashi
  • Publication number: 20180072701
    Abstract: A cyclic amine derivative represented by a general formula (I) or a pharmacologically acceptable salt thereof: wherein n represents 1 or 3, R1 represents an alkyl group having 1 to 6 carbon atoms unsubstituted, substituted with a halogen atom or substituted with an alkyloxy group having 1 to 4 carbon atoms and R2 represents a hydrogen atom or a halogen atom.
    Type: Application
    Filed: March 24, 2016
    Publication date: March 15, 2018
    Inventors: Yuji Osada, Naoki Izumimoto, Yasuhiro Morita, Shuji Udagawa, Katsuhiko Iseki, Tomoya Miyoshi, Shunsuke Iwano
  • Publication number: 20180065950
    Abstract: A compound exerts an analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. A cyclic amine derivative represented by the following general formula, or a pharmacologically acceptable salt thereof: Methods using the compound including the cyclic amine derivative or a pharmacologically acceptable salt thereof to treat pain, neuropathic pain and fibromyalgia syndrome.
    Type: Application
    Filed: February 26, 2016
    Publication date: March 8, 2018
    Inventors: Tadamasa Arai, Yasuhiro Morita, Shuji Udagawa, Katsuhiko Iseki, Naoki Izumimoto
  • Patent number: 9505740
    Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. The cyclic amine derivative is represented by formula, a prodrug thereof or a pharmacologically acceptable salt thereof: wherein A represents a group represented by Formula (IIa), (IIb) or (IIc): wherein R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R4 represents a hydrogen atom or an alkylcarbonyl group having 2 to 6 carbon atoms or an alkyl group having 1 to 6 carbon atoms and optionally substituted with an alkylcarbonylamino group having 2 to 6 carbon atoms and n represents 1 or 2, in which when R3 and R4 each independently represent an alkyl group having 1 to 6 carbon atoms, R1 represents an alkyl group having 1 to 6 carbon atoms and substituted with a hydroxyl group, an amino group or a carboxyl group.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 29, 2016
    Inventors: Yasuhiro Morita, Naoki Izumimoto, Katsuhiko Iseki, Shunsuke Iwano, Shuji Udagawa, Tomoya Miyoshi, Yuji Osada, Tetsuro Koreeda, Masanori Murakami, Motohiro Shiraki, Kei Takahashi, Keiyu Oshida
  • Publication number: 20160194302
    Abstract: A compound exerts a strong analgesic effect against pain, in particular, neuropathic pain and/or fibromyalgia syndrome. The cyclic amine derivative is represented by formula, a prodrug thereof or a pharmacologically acceptable salt thereof: wherein A represents a group represented by Formula (IIa), (IIb) or (IIc): wherein R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R4 represents a hydrogen atom or an alkylcarbonyl group having 2 to 6 carbon atoms or an alkyl group having 1 to 6 carbon atoms and optionally substituted with an alkylcarbonylamino group having 2 to 6 carbon atoms and n represents 1 or 2, in which when R3 and R4 each independently represent an alkyl group having 1 to 6 carbon atoms, R1 represents an alkyl group having 1 to 6 carbon atoms and substituted with a hydroxyl group, an amino group or a carboxyl group.
    Type: Application
    Filed: September 26, 2014
    Publication date: July 7, 2016
    Inventors: Yasuhiro MORITA, Naoki IZUMIMOTO, Katsuhiko ISEKI, Shunsuke IWANO, Shuji UDAGAWA, Tomoya MIYOSHI, Yuji OSADA, Tetsuro KOREEDA, Masanori MURAKAMI, Motohiro SHIRAKI, Kei TAKAHASHI, Keiyu OSHIDA