Patents by Inventor Tadamasa Arai

Tadamasa Arai 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: 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
  • 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: 9796677
    Abstract: Provided is a novel compound which has an excellent A? aggregation inhibitory effect and is useful as a pharmaceutical. An amide compound represented by the formula (1) or a salt thereof, wherein Z represents CH or N; A and B are the same or different and each represents —CH2—, —O—, —S—, or —NH—; R1 and R2 are the same or different and each represents a branched alkyl group, a branched alkenyl group, an optionally substituted aromatic hydrocarbon group, an optionally substituted aralkyl group, an optionally substituted cycloalkyl group, or an optionally substituted aromatic heterocyclic group; and R3 represents a branched alkyl group, a branched alkenyl group, an optionally substituted cycloalkyl group, or an optionally substituted aralkyl group.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 24, 2017
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Motomu Kanai, Yohei Soma, Tadamasa Arai, Takushi Araya
  • Patent number: 9745349
    Abstract: A cyclic peptide or a salt thereof of formula (1): X-Leu-Val-Y1-Y2 (1), where X is Lys, Arg, His, Ala, Gly, Ser, or Thr; and Y1 and Y2, which are identical to or different from each other, each represent a group represented by formula (2): where Ar1 represents an aromatic hydrocarbon group or an aromatic heterocyclic group; R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, a haloalkyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group; and n is an integer from 0 to 2. In the cyclic peptide has an ?-amino group at the amino terminus of the amino acid sequence which is linked, via a peptide bond, to the carboxyl group at the carboxyl terminus of the amino acid sequence.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: August 29, 2017
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Motomu Kanai, Yohei Soma, Tadamasa Arai, Daisuke Sasaki, Yuki Kobayashi
  • Publication number: 20160297764
    Abstract: Provided is a novel compound which has an excellent A? aggregation inhibitory effect and is useful as a pharmaceutical. An amide compound represented by the formula (1) or a salt thereof, wherein Z represents CH or N; A and B are the same or different and each represents —CH2—, —O—, —S—, or —NH—; R1 and R2 are the same or different and each represents a branched alkyl group, a branched alkenyl group, an optionally substituted aromatic hydrocarbon group, an optionally substituted aralkyl group, an optionally substituted cycloalkyl group, or an optionally substituted aromatic heterocyclic group; and R3 represents a branched alkyl group, a branched alkenyl group, an optionally substituted cycloalkyl group, or an optionally substituted aralkyl group.
    Type: Application
    Filed: December 9, 2014
    Publication date: October 13, 2016
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Motomu KANAI, Yohei SOMA, Tadamasa ARAI, Takushi ARAYA
  • Publication number: 20150299262
    Abstract: Provided is a novel compound which has excellent inhibitory activity for A? aggregation, and which is useful as a drug.
    Type: Application
    Filed: October 18, 2013
    Publication date: October 22, 2015
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Motomu KANAI, Yohei SOMA, Tadamasa ARAI, Daisuke SASAKI, Yuki KOBAYASHI
  • Patent number: 8349874
    Abstract: A method relieves both nociceptive pain and neuropathic pain and has fewer side effects. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 8, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Yasuhiro Morita, Katsuhiko Iseki, Yuji Sugawara, Hideyuki Tsutsiu, Shunsuke Iwano, Naoki Izumimoto, Tadamasa Arai, Hidetoshi Noda, Chihiro Yoshida
  • Publication number: 20120270906
    Abstract: A method relieves both nociceptive pain and neuropathic pain and has fewer side effects. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 25, 2012
    Applicant: Toray Industries, Inc.
    Inventors: Yasuhiro Morita, Katsuhiko Iseki, Yuji Sugawara, Hideyuki Tsutsui, Shunsuke Iwano, Naoki Izumimoto, Tadamasa Arai, Hidetoshi Noda, Chihiro Yoshida
  • Patent number: 8247569
    Abstract: A compound has a strong analgesic action against both nociceptive pain and neuropathic pain and has less side effects, and is medically useful. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 21, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Yasuhiro Morita, Katsuhiko Iseki, Yuji Sugawara, Hideyuki Tsutsui, Shunsuke Iwano, Naoki Izumimoto, Tadamasa Arai, Hidetoshi Noda, Chihiro Yoshida
  • Publication number: 20110201650
    Abstract: A compound has a strong analgesic action against both nociceptive pain and neuropathic pain and has less side effects, and is medically useful. The compound includes cyclohexane derivatives represented by the following compound, or pharmaceutically acceptable salts thereof or prodrugs thereof.
    Type: Application
    Filed: October 30, 2009
    Publication date: August 18, 2011
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yasuhiro Morita, Katsuhiko Iseki, Yuji Sugawara, Hideyuki Tsutsui, Shunsuke Iwano, Naoki Izumimoto, Tadamasa Arai, Hidetoshi Noda, Chihiro Yoshida