Patents by Inventor Masaki Asada

Masaki Asada 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: 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: 20220048881
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation is disclosed. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Kousuke Tani, Masaya Hirobe, Satonori Higuchi, Kazuhiro Fuchibe, Ryo Oikawa, Tohru Kotani, Hirotsugu Takano
  • 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: 11192876
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation is disclosed. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: December 7, 2021
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki Asada, Kousuke Tani, Masaya Hirobe, Satonori Higuchi, Kazuhiro Fuchibe, Ryo Oikawa, Tohru Kotani, Hirotsugu Takano
  • Publication number: 20210163466
    Abstract: A compound represented by general formula (I): (wherein in the formula, all the symbols have the same meanings as those described in the specification), or a pharmaceutically acceptable salt thereof is useful as a medicament's active ingredient having an EP4 receptor antagonistic activity, in preventing and/or treating disease caused by activation of an EP4 receptor.
    Type: Application
    Filed: May 21, 2018
    Publication date: June 3, 2021
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Kousuke TANI, Satonori HIGUCHI
  • Publication number: 20200102284
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation is disclosed. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Kousuke TANI, Masaya HIROBE, Satonori HIGUCHI, Kazuhiro FUCHIBE, Ryo OIKAWA, Tohru KOTANI, Hirotsugu TAKANO
  • Patent number: 10538502
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: January 21, 2020
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki Asada, Kousuke Tani, Masaya Hirobe, Satonori Higuchi, Kazuhiro Fuchibe, Ryo Oikawa, Tohru Kotani, Hirotsugu Takano
  • Publication number: 20180319764
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 8, 2018
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Kousuke TANI, Masaya HIROBE, Satonori HIGUCHI, Kazuhiro FUCHIBE, Ryo OIKAWA, Tohru KOTANI, Hirotsugu TAKANO
  • Patent number: 10077247
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 18, 2018
    Assignee: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki Asada, Kousuke Tani, Masaya Hirobe, Satonori Higuchi, Kazuhiro Fuchibe, Ryo Oikawa, Tohru Kotani, Hirotsugu Takano
  • Publication number: 20180002308
    Abstract: A medicinal agent for the prevention and/or treatment of diseases caused by EP4 receptor activation. A compound having antagonistic activity against the EP4 receptor is contained as an active ingredient in the medicinal agent. The compound represented by the following general formula (I) as defined in the specification, a salt, an N-oxide, or a solvate thereof, or a prodrug of these is useful as a medicinal component having antagonistic activity against the EP4 receptor for the prevention and/or treatment of diseases caused by EP4 receptor activation.
    Type: Application
    Filed: January 8, 2016
    Publication date: January 4, 2018
    Applicant: ONO PHARMACEUTICAL CO., LTD.
    Inventors: Masaki ASADA, Kousuke TANI, Masaya HIROBE, Satonori HIGUCHI, Kazuhiro FUCHIBE, Ryo OIKAWA, Tohru KOTANI, Hirotsugu TAKANO
  • Patent number: 7786161
    Abstract: A carboxylic acid derivative of formula (I): wherein R1 is —COOH, —COOR6, etc.; A is a single bond, alkylene, etc.; R2 is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R3 is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE2 receptor, especially subtypes EP3 and/or EP4 and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: August 31, 2010
    Assignee: ONO Pharmaceutical Co., Ltd.
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Publication number: 20090318703
    Abstract: A carboxylic acid derivative of formula (I): wherein R1 is —COOH, —COOR6, etc.; A is a single bond, alkylene, etc.; R2 is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R3 is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE2 receptor, especially subtypes EP3 and/or EP4 and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.
    Type: Application
    Filed: October 27, 2008
    Publication date: December 24, 2009
    Applicant: ONO PHARMACEUTICAL CO., LTD
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Patent number: 7576129
    Abstract: The present invention relates to a carboxylic acid compound of formula (I): wherein R1 is H, alkyl; m is 2, 3; n is 0-2; R2 is phenyl, naphthyl, benzofuran, benzothiophene; Q is —CH2—O-Cyc1, —CH2-Cyc2, -L-Cyc3; R3a and R3b each independently is hydrogen, alkyl or taken together form tetrahydro-2H-pyran; a pharmaceutically acceptable salt thereof, a method for producing a process of the preparation thereof and a pharmaceutical agent comprising the same as an active ingredient. The compound of formula (I) have an antagonizing activity against PGE2 receptor, specifically EP3 receptor which is subtype thereof, and are useful for the prevention and/or treatment of itching, pain, urinary disturbance or stress disease.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: August 18, 2009
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Masaki Asada, Kaoru Kobayashi, Masami Narita, Kazutoyo Sato, Atsushi Kinoshita, Toshihiko Nagase, Ken Yoshikawa
  • Patent number: 7491748
    Abstract: A carboxylic acid derivative of formula (I): wherein R1 is —COOH, —COOR6, etc.; A is a single bond, alkylene, etc.; R2 is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R3 is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE2 receptor, especially subtypes EP3 and/or EP4 and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: February 17, 2009
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Publication number: 20070167498
    Abstract: The present invention relates to a carboxylic acid compound of formula (I): wherein R1 is H, alkyl; m is 2, 3; n is 0-2; R2 is phenyl, naphthyl, benzofuran, benzothiophene; Q is —CH2—O-Cyc1, —CH2-Cyc2, -L-Cyc3; R3a and R3b each independently is hydrogen, alkyl or taken together form tetrahydro-2H-pyran; a pharmaceutically acceptable salt thereof, a method for producing a process of the preparation thereof and a pharmaceutical agent comprising the same as an active ingredient. The compound of formula (I) have an antagonizing activity against PGE2 receptor, specifically EP3 receptor which is subtype thereof, and are useful for the prevention and/or treatment of itching, pain, urinary disturbance or stress disease.
    Type: Application
    Filed: February 6, 2004
    Publication date: July 19, 2007
    Inventors: Masaki Asada, Kaoru Kobayashi, Masami Narita, Kazutoyo Sato, Atsushi Kinoshita, Toshihiko Nagase, Ken Yoshikawa
  • Publication number: 20060258728
    Abstract: A carboxylic acid derivative of formula (I): wherein R1 is —COOH, —COOR6, etc.; A is a single bond, alkylene, etc.; R2 is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R3 is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE2 receptor, especially subtypes EP3 and/or EP4 and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.
    Type: Application
    Filed: August 8, 2002
    Publication date: November 16, 2006
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Publication number: 20050026908
    Abstract: A carboxylic acid derivative of formula (I) wherein R1 is COOH, COOR6 etc.; A is alkylene etc.; R2 is alkyl, alkenyl, alkynyl etc.; B is carbocyclic ring or heterocyclic ring; R4 is alkyl, cycloalkyl etc.; R6 is carbocyclic ring or heterocyclic ring; or non-toxic salts thereof, a process for the preparation thereof and a pharmaceutical agent comprising the same as active ingredient. The compound of the formula (I) can bind to Prostaglandin E2 receptors, especially, EP3 receptor and/or EP4 receptor and show the antagonizing activity, and useful for the prevention and/or treatment of disease, for example, pain, allergy, Alzheimer's disease, cancer.
    Type: Application
    Filed: August 25, 2004
    Publication date: February 3, 2005
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Patent number: 6835752
    Abstract: A carboxylic acid derivative of formula (1) wherein R1 is COOH, COOR6 etc.; A is alkylene etc.; R2 is alkyl, alkenyl, alkynyl etc.; B is carbocyclic ring or heterocyclic ring; R4 is alkyl, cycloalkyl etc.; R6 is carbocyclic ring or heterocyclic ring; or non-toxic salts thereof, a process for the preparation thereof and a pharmaceutical agent comprising the same as active ingredient. The compound of the formula (I) can bind to Prostaglandin E2 receptors, especially, EP3 receptor and/or EP4 receptor and show the antagonizing activity, and useful for the prevention and/or treatment of disease, for example, pain, allergy, Alzheimer's disease, cancer.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: December 28, 2004
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Publication number: 20040002493
    Abstract: A pharmaceutical composition, which comprises a benzoic acid derivative of formula (I) 1
    Type: Application
    Filed: February 27, 2003
    Publication date: January 1, 2004
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa
  • Publication number: 20030216381
    Abstract: A carboxylic acid derivative of formula (1) 1
    Type: Application
    Filed: February 20, 2003
    Publication date: November 20, 2003
    Inventors: Kousuke Tani, Masaki Asada, Kaoru Kobayashi, Masami Narita, Mikio Ogawa