Patents by Inventor Atsushi Naganawa

Atsushi Naganawa 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: 20220204468
    Abstract: An object of the present invention is to provide a DP receptor antagonist. A compound represented by general formula (I): (wherein all symbols are as shown in the specification) and a pharmaceutically acceptable salt thereof have DP receptor antagonistic activity and are also highly safe, and thus are useful as active ingredients of pharmaceuticals for DP receptor-mediated diseases. In addition, the compound represented by the general formula (I) and the pharmaceutically acceptable salt thereof also have good transferability to the central nervous system, and thus are particularly useful as a preventive and/or therapeutic agent for diseases associated with DP receptors present in the central nervous system among DP receptor-mediated diseases, that is, sleep-wake disorders.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 30, 2022
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Keisuke HANADA, Satonori HIGUCHI, Atsushi NAGANAWA, Yasuhiro TAKEDA
  • Patent number: 11319296
    Abstract: An object of the present invention is to provide a DP receptor antagonist. A compound represented by general formula (I): (wherein all symbols are as shown in the specification) and a pharmaceutically acceptable salt thereof have DP receptor antagonistic activity and are also highly safe, and thus are useful as active ingredients of pharmaceuticals for DP receptor-mediated diseases. In addition, the compound represented by the general formula (I) and the pharmaceutically acceptable salt thereof also have good transferability to the central nervous system, and thus are particularly useful as a preventive and/or therapeutic agent for diseases associated with DP receptors present in the central nervous system among DP receptor-mediated diseases, that is, sleep-wake disorders.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 3, 2022
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki Asada, Keisuke Hanada, Satonori Higuchi, Atsushi Naganawa, Yasuhiro Takeda
  • Publication number: 20220033371
    Abstract: An object of the present invention is to provide a DP receptor antagonist. A compound represented by general formula (I): (wherein all symbols are as shown in the specification) and a pharmaceutically acceptable salt thereof have DP receptor antagonistic activity and are also highly safe, and thus are useful as active ingredients of pharmaceuticals for DP receptor-mediated diseases. In addition, the compound represented by the general formula (I) and the pharmaceutically acceptable salt thereof also have good transferability to the central nervous system, and thus are particularly useful as a preventive and/or therapeutic agent for diseases associated with DP receptors present in the central nervous system among DP receptor-mediated diseases, that is, sleep-wake disorders.
    Type: Application
    Filed: September 19, 2019
    Publication date: February 3, 2022
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Keisuke HANADA, Satonori HIGUCHI, Atsushi NAGANAWA, Yasuhiro TAKEDA
  • Patent number: 10835520
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: November 17, 2020
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Publication number: 20190030010
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi NAGANAWA, Kensuke KUSUMI, Kazuhiro OTSUKI, Tetsuya SEKIGUCHI, Akito KAKUUCHI, Koji SHINOZAKI, Hiroshi YAMAMOTO, Shigeyuki NONAKA
  • Patent number: 10117861
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 6, 2018
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Publication number: 20180042908
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 15, 2018
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi NAGANAWA, Kensuke KUSUMI, Kazuhiro OTSUKI, Tetsuya SEKIGUCHI, Akito KAKUUCHI, Koji SHINOZAKI, Hiroshi YAMAMOTO, Shigeyuki NONAKA
  • Patent number: 9820980
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: November 21, 2017
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Publication number: 20170327439
    Abstract: A compound represented by general formula (I) (wherein, all the symbols are as defined in the specification) has a selective S1P5 receptor agonist activity due to having a linker from a phenyl group to a cyclic substituent in a dihydronaphthalene skeleton; .i.e., due to having a short linker of one atom or less as L in general formula (I), and can therefore serve as an agent for treating S1P5-mediated disease, e.g., neurodegenerative disease such as schizophrenia.
    Type: Application
    Filed: December 3, 2014
    Publication date: November 16, 2017
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Kensuke KUSUMI, Haruto KURATA, Atsushi NAGANAWA, Yasuyo KODERA, Yuichi INAGAKI, Hiroya TAKIZAWA, Mark Allan WOLF, Joseph RAKER
  • Patent number: 9676719
    Abstract: An object of the present invention is to provide a compound having strong human S1P2 antagonistic activity in order to develop a useful medicament for therapy of a S1P2-mediated disease such as a disease resulting from vascular constriction, fibrosis and respiratory disease. The compound represented by the general formula (I), wherein all the symbols have the same meanings as described in the specification, has a halogen atom or a haloalkyl group and a phenoxy group at certain substitution sites, and thus has strong human S1P2 antagonistic activity. Therefore, the compound can be a therapeutic agent for a S1P2-mediated disease, such as a disease resulting from vascular constriction, fibrosis and respiratory disease.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: June 13, 2017
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Kensuke Kusumi, Atsushi Naganawa, Kazuhiro Otsuki, Tetsuya Sekiguchi, Koji Shinozaki, Hiroshi Yamamoto, Yasuko Yamamoto
  • Publication number: 20160213660
    Abstract: The compound of the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis, and respiratory diseases.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi NAGANAWA, Kensuke KUSUMI, Kazuhiro OTSUKI, Tetsuya SEKIGUCHI, Akito KAKUUCHI, Koji SHINOZAKI, Hiroshi YAMAMOTO, Shigeyuki NONAKA
  • Patent number: 9340499
    Abstract: The compound represented by the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis and respiratory diseases.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: May 17, 2016
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Publication number: 20160039757
    Abstract: An object of the present invention is to provide a compound having strong human S1P2 antagonistic activity in order to develop a useful medicament for therapy of a S1P2-mediated disease such as a disease resulting from vascular constriction, fibrosis and respiratory disease. The compound represented by the general formula (I), wherein all the symbols have the same meanings as described in the specification, has a halogen atom or a haloalkyl group and a phenoxy group at certain substitution sites, and thus has strong human S1P2 antagonistic activity. Therefore, the compound can be a therapeutic agent for a S1P2-mediated disease, such as a disease resulting from vascular constriction, fibrosis and respiratory disease.
    Type: Application
    Filed: March 25, 2014
    Publication date: February 11, 2016
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Kensuke KUSUMI, Atsushi NAGANAWA, Kazuhiro OTSUKI, Tetsuya SEKIGUCHI, Koji SHINOZAKI, Hiroshi YAMAMOTO, Yasuko YAMAMOTO
  • Publication number: 20150126486
    Abstract: The compound represented by the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis and respiratory diseases.
    Type: Application
    Filed: January 8, 2015
    Publication date: May 7, 2015
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi NAGANAWA, Kensuke KUSUMI, Kazuhiro OTSUKI, Tetsuya SEKIGUCHI, Akito KAKUUCHI, Koji SHINOZAKI, Hiroshi YAMAMOTO, Shigeyuki NONAKA
  • Patent number: 8975409
    Abstract: The compound represented by the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis and respiratory diseases.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 10, 2015
    Assignee: ONO Pharmaceutical Co., Ltd.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Publication number: 20140357630
    Abstract: A compound represented by formula (I), wherein R1 represents a hydrogen atom, etc., R2 and R3 each independently represents a hydrogen atom, optionally oxidized C1-4 alkyl group or optionally protected hydroxyl group, or R2 and R3 taken together represent optionally oxidized C2-5 alkylene group, R4 represents an optionally oxidized C1-6 alkyl group, etc., R5 represents an optionally oxidized C1-6 alkyl group, etc., R6 represents an optionally oxidized C1-6 alkyl group, etc., m represents 0 or an integer from 1 to 3, n represents 0 or an integer from 1 to 4, and i represents 0 or an integer from 1 to 7.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi NAGANAWA, Toshihiko NAGASE
  • Publication number: 20140235611
    Abstract: The compound represented by the formula (I-1): wherein all the symbols have the same meanings as described in the specification, has two cyclic groups, particularly phenoxy groups at specific substitution positions and thus has high human S1P2 antagonistic activity. The compound may therefore be used as a therapeutic agent for S1P2-mediated diseases such as diseases resulting from vascular constriction, fibrosis and respiratory diseases.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 21, 2014
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Atsushi Naganawa, Kensuke Kusumi, Kazuhiro Otsuki, Tetsuya Sekiguchi, Akito Kakuuchi, Koji Shinozaki, Hiroshi Yamamoto, Shigeyuki Nonaka
  • Patent number: 8809524
    Abstract: A compound represented by formula (I), wherein R1 represents a hydrogen atom, etc., R2 and R3 each independently represents a hydrogen atom, optionally oxidized C1-4 alkyl group or optionally protected hydroxyl group, or R2 and R3 taken together represent optionally oxidized C2-5 alkylene group, R4 represents an optionally oxidized C1-6 alkyl group, etc., R5 represents an optionally oxidized C1-6 alkyl group, etc., R6 represents an optionally oxidized C1-6 alkyl group, etc., m represents 0 or an integer from 1 to 3, n represents 0 or an integer from 1 to 4, and i represents 0 or an integer from 1 to 7.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: August 19, 2014
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Atsushi Naganawa, Toshihiko Nagase
  • Patent number: 8476266
    Abstract: A compound represented by formula (I), wherein R1 represents a hydrogen atom, etc., R2 and R3 each independently represents a hydrogen atom, optionally oxidized C1-4 alkyl group or optionally protected hydroxyl group, or R2 and R3 taken together represent optionally oxidized C2-5 alkylene group, R4 represents an optionally oxidized C1-6 alkyl group, etc., R5 represents an optionally oxidized C1-6 alkyl group, etc., R6 represents an optionally oxidized C1-6 alkyl group, etc., m represents 0 or an integer from 1 to 3, n represents 0 or an integer from 1 to 4, and i represents 0 or an integer from 1 to 7.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: July 2, 2013
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Atsushi Naganawa, Toshihiko Nagase
  • Patent number: 8318729
    Abstract: A compound represented by formula (I), wherein R1 represents a hydrogen atom, etc., R2 and R3 each independently represents a hydrogen atom, optionally oxidized C1-4 alkyl group or optionally protected hydroxyl group, or R2 and R3 taken together represent optionally oxidized C2-5 alkylene group, R4 represents an optionally oxidized C1-6 alkyl group, etc., R5 represents an optionally oxidized C1-6 alkyl group, etc., R6 represents an optionally oxidized C1-6 alkyl group, etc., m represents 0 or an integer from 1 to 3, n represents 0 or an integer from 1 to 4, and i represents 0 or an integer from 1 to 7.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: November 27, 2012
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Atsushi Naganawa, Toshihiko Nagase