Patents by Inventor Shigenori Ohkawa

Shigenori Ohkawa 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: 20100240743
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Application
    Filed: April 8, 2010
    Publication date: September 23, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Shigenori OHKAWA, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7750037
    Abstract: A PKB (Akt) activating agent comprising a compound represented by the formula (I): wherein R1 and R2: H, a hydrocarbon group or a heterocyclic group or R1 and R2 form a ring in cooperation with the adjacent carbon atom; R3: H, a hydrocarbon group or a heterocyclic group; W: represents a group represented by the formulas: wherein ring A: an optionally substituted benzene ring; ring B: an optionally substituted 5- to 7-membered nitrogen-containing heterocycle; R4: an aliphatic hydrocarbon group substituted with an aromatic group and further optionally substituted, or an acyl group containing an aromatic group; R5: H, C1-6 alkyl or acyl; R4c: an aromatic group, an aliphatic hydrocarbon group or acyl; and X: O or S; Y: O, S or NH; and ring C: an optionally substituted benzene ring, or a salt or a prodrug thereof, and use of the activating agent in prevention or treatment of depression, anxiety, manic-depressive psychosis or PTSD are provided.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: July 6, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Masaomi Miyamoto
  • Patent number: 7507841
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: March 24, 2009
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7495018
    Abstract: (1) A 1,3-thiazole compound of which the 5-position is substituted with a 4-pyridyl group having a substituent including no aromatic group or (2) a 1,3-thiazole compound of which the 5-position is substituted with a pyridyl group having at the position adjacent to a nitrogen atom of the pyridyl group a substituent including no aromatic group has an excellent p38 MAP kinase inhibitory activity.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: February 24, 2009
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Ken-ichi Naruo, Seiji Miwatashi, Hiroyuki Kimura
  • Publication number: 20090048307
    Abstract: An optionally N-oxidized compound represented by the formula: wherein R1 represents hydrogen, hydrocarbon, heterocycle, amino, acyl, R2 represents an aromatic group, R3 represents hydrogen, pyridyl, aromatic hydrocarbon, X represents oxygen, optionally oxidized sulfur, Y represents a bond, an oxygen, optionally oxidized sulfur, a group represented by the formula NR4 (R4 represents hydrogen, hydrocarbon or acyl) and Z represents a bond or a divalent acyclic hydrocarbon, or a salt thereof has an excellent adenosine A3 receptor antagonistic activity and is used as an agent for preventing or treating diseases related to an adenosine A3 receptor. Furthermore, the compound (I) or a salt thereof has p38 MAP kinase inhibitory activity and TNF-? inhibitory activity and is used as an agent for preventing or treating diseases related to p38 MAP kinase and diseases related to TNF-?.
    Type: Application
    Filed: August 29, 2007
    Publication date: February 19, 2009
    Inventors: Shigenori Ohkawa, Naoyuki Kanzaki, Seiji Miwatashi
  • Publication number: 20090023800
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Application
    Filed: August 29, 2008
    Publication date: January 22, 2009
    Inventors: Shigenori Ohkawa, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7465815
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: December 16, 2008
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7456162
    Abstract: Compounds represented by the formula: wherein R1 and R2 are hydrogen atom, a hydrocarbon group or a heterocyclic group, or R1 and R2 may form, together with the adjacent carbon atom, a 3- to 8-membered homocyclic or heterocyclic ring, W indicates a group represented by the formula: wherein R4 indicates (1) an aliphatic hydrocarbon group, which may be substituted with an aromatic group, or (2) an acyl group containing an aromatic group, R5 is hydrogen atom, a C1-6 alkyl, or an acyl group, R3 indicates a C6-14 aryl group, or salts thereof. The compounds have an excellent action to inhibit neurodegeneration as well as an excellent brain penetrability and are low in the toxicity, thereby being useful as drugs for nerve degenerative diseases.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: November 25, 2008
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Yasuyoshi Arikawa, Kouki Kato, Masahiro Okura, Masaki Setoh
  • Publication number: 20080021087
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 24, 2008
    Inventors: Shigenori Ohkawa, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7276527
    Abstract: An optionally N-oxidized compound represented by the formula: wherein R1 represents hydrogen, hydrocarbon, heterocycle, amino, acyl, R2 represents an aromatic group, R3 represents hydrogen, pyridyl, aromatic hydrocarbon, X represents oxygen, optionally oxidized sulfur, Y represents a bond, an oxygen, optionally oxidized sulfur, a group represented by the formula NR4 (R4 represents hydrogen, hydrocarbon or acyl) and Z represents a bond or a divalent acyclic hydrocarbon, or a salt thereof has an excellent adenosine A3 receptor antagonistic activity and is used as an agent for preventing or treating diseases related to an adenosine A3 receptor. Furthermore, the compound (I) or a salt thereof has p38 MAP kinase inhibitory activity and TNF-? inhibitory activity and is used as an agent for preventing or treating diseases related to p38 MAP kinase and diseases related to TNF-?.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 2, 2007
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Naoyuki Kanzaki, Seiji Miwatashi
  • Publication number: 20070149558
    Abstract: A compound represented by the formula: (wherein, R1 and R2 are the same or different and each represents a hydrogen atom, hydrocarbon group or heterocyclic group, or R1 and R2 may form, together with the adjacent carbon atom, a 3-8 membered iso- or heterocyclic group, R3 represents a cyclic group, a hydroxy group, a mercapto group that may have oxo, or an amino group, R4 represents a hydrogen atom, a hydrocarbon group, a hydroxy group, a mercapto group which may have oxo, or an amino group, or R2 and R4 may link together to form a double bond, X represents a bond or a linear hydrocarbon group, W represents an oxygen atom or a sulfur atom, ring B represents a 5-8 membered nitrogen-containing heterocyclic group, ring C represents a benzene ring, and represents a single bond or a double bond), or a salt or a prodrug thereof that has excellent neurodegenerative inhibitory activity and brain penetrability, and is useful as an agent for preventing/treating neurodegenerative diseases.
    Type: Application
    Filed: February 27, 2007
    Publication date: June 28, 2007
    Inventors: Shigenori Ohkawa, Masaomi Miyamoto, Masahiro Okura, Tetsuya Tsukamoto
  • Publication number: 20070099990
    Abstract: A cannabinoid receptor modulator containing a compound represented by Formula (I0) wherein, X is an oxygen atom, etc., R0 is an optionally substituted acylamino group, ring A0 is a benzene ring which may further have a substituent in addition to R0, and ring B is an optionally substituted 5-membered heterocycle, or a salt thereof or a prodrug thereof.
    Type: Application
    Filed: June 25, 2004
    Publication date: May 3, 2007
    Inventors: Shigenori Ohkawa, Tetsuya Tsukamoto, Yoshihiro Kiyota, Mika Goto, Shouzou Yamamoto, Masato Shimojou, Masaki Setou
  • Patent number: 7208495
    Abstract: A compound represented by the formula: (wherein, R1 and R2 are the same or different and each represents a hydrogen atom, hydrocarbon group or heterocyclic group, or R1 and R2 may form, together with the adjacent carbon atom, a 3–8 membered iso- or heterocyclic group, R3 represents a cyclic group, a hydroxy group, a mercapto group that may have oxo, or an amino group, R4 represents a hydrogen atom, a hydrocarbon group, a hydroxy group, a mercapto group which may have oxo, or an amino group, or R2 and R4 may link together to form a double bond, X represents a bond or a linear hydrocarbon group, W represents an oxygen atom or a sulfur atom, ring B represents a 5–8 membered nitrogen-containing heterocyclic group, ring C represents a benzene ring, and— represents a single bond or a double bond), or a salt or a prodrug thereof that has excellent neurodegenerative inhibitory activity and brain penetrability, and is useful as an agent for preventing/treating neurodegenerative diseases.
    Type: Grant
    Filed: July 4, 2002
    Date of Patent: April 24, 2007
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Masaomi Miyamoto, Masahiro Okura, Tetsuya Tsukamoto
  • Patent number: 7199124
    Abstract: The present invention relates to a c-Jun N-terminal kinase inhibitor containing an azole compound (I) substituted by a nitrogen-containing aromatic group having substituent(s)(except a compound represented by the formula: ) or a salt thereof or a prodrug thereof.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 3, 2007
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Kenichi Naruo, Seiji Miwatashi, Hiroyuki Kimura, Tomohiro Kawamoto
  • Publication number: 20060241168
    Abstract: A PKB (Akt) activating agent comprising a compound represented by the formula (I): wherein R1 and R2: H, a hydrocarbon group or a heterocyclic group or R1 and R2 form a ring in cooperation with the adjacent carbon atom; R3: H, a hydrocarbon group or a heterocyclic group; W: represents a group represented by the formulas: wherein ring A: an optionally substituted benzene ring; ring B: an optionally substituted 5- to 7-membered nitrogen-containing heterocycle; R4: an aliphatic hydrocarbon group substituted with an aromatic group and further optionally substituted, or an acyl group containing an aromatic group; R5: H, C1-6 alkyl or acyl; R4c: an aromatic group, an aliphatic hydrocarbon group or acyl; and X: O or S; Y: O, S or NH; and ring C: an optionally substituted benzene ring, or a salt or a prodrug thereof, and use of the activating agent in prevention or treatment of depression, anxiety, manic-depressive psychosis or PTSD are provided.
    Type: Application
    Filed: June 27, 2006
    Publication date: October 26, 2006
    Inventors: Shigenori Ohkawa, Masaomi Miyamoto
  • Patent number: 7101899
    Abstract: An optionally N-oxidized compound represented by the formula: wherein R1 represents hydrogen, hydrocarbon, heterocycle, amino, acyl, R2 represents an aromatic group, R3 represents hydrogen, pyridyl, aromatic hydrocarbon, X represents oxygen, optionally oxidized sulfur, Y represents a bond, an oxygen, optionally oxidized sulfur, a group represented by the formula NR4 (R4 represents hydrogen, hydrocarbon or acyl) and Z represents a bond or a divalent acyclic hydrocarbon, or a salt thereof has an excellent adenosine A3 receptor antagonistic activity and is used as an agent for preventing or treating diseases related to an adenosine A3 receptor. Furthermore, the compound (I) or a salt thereof has p38 MAP kinase inhibitory activity and TNF-? inhibitory activity and is used as an agent for preventing or treating diseases related to p38 MAP kinase and diseases related to TNF-?.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: September 5, 2006
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Naoyuki Kanzaki, Seiji Miwatashi
  • Patent number: 7101867
    Abstract: Compounds represented by the formula: wherein R1 and R2 are hydrogen atom, a hydrocarbon group or a heterocyclic group, or R1 and R2 may form, together with the adjacent carbon atom, a 3- to 8-membered homocyclic or heterocyclic ring, W indicates (i) a group represented by the formula: wherein ring B indicates a 5- to 7-membered ring, or (ii) a group represented by the formula: wherein R4 indicates (1) an aliphatic hydrocarbon group, which may be substituted with an aromatic group, or (2) an acyl group containing an aromatic group, R5 is hydrogen atom, a C1-6 alkyl, or an acyl group, provided that, when W is Wa, R3 is hydrogen atom, a hydrocarbon group or a heterocyclic group, when W is Wb, R3 indicates a C6-14 aryl group, or salts thereof or prodrugs thereof have an excellent action to inhibit neurodegeneration and the like as well as an excellent brain penetrability and are low in the toxicity, thereby being useful as prophylactic or therapeutic drugs for nerve degenerative diseases and the
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: September 5, 2006
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Yasuyoshi Arikawa, Kouki Kato, Masahiro Okura, Masaki Setoh
  • Publication number: 20060135566
    Abstract: An optionally N-oxidized compound represented by the formula: wherein R1 represents hydrogen, hydrocarbon, heterocycle, amino, acyl, R2 represents an aromatic group, R3 represents hydrogen, pyridyl, aromatic hydrocarbon, X represents oxygen, optionally oxidized sulfur, Y represents a bond, an oxygen, optionally oxidized sulfur, a group represented by the formula NR4 (R4 represents hydrogen, hydrocarbon or acyl) and Z represents a bond or a divalent acyclic hydrocarbon, or a salt thereof has an excellent adenosine A3 receptor antagonistic activity and is used as an agent for preventing or treating diseases related to an adenosine A3 receptor. Furthermore, the compound (I) or a salt thereof has p38 MAP kinase inhibitory activity and TNF-? inhibitory activity and is used as an agent for preventing or treating diseases related to p38 MAP kinase and diseases related to TNF-?.
    Type: Application
    Filed: February 16, 2006
    Publication date: June 22, 2006
    Inventors: Shigenori Ohkawa, Naoyuki Kanzaki, Seiji Miwatashi
  • Patent number: 7008940
    Abstract: A compound represented by the formula (I): or a salt thereof exhibits excellent inhibitory activity of lipid peroxidation and is useful as an agent for inhibiting lipoperoxide production, wherein ring A denotes a non-aromatic 5- to 7-membered nitrogen-containing heterocyclic ring which may be further substituted, B ring denotes a benzene ring which may be further substituted, C ring denotes a dihydrofuran ring which may be further substituted, and R denotes hydrogen atom or an acyl group.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: March 7, 2006
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Shigenori Ohkawa, Tadatoshi Hashimoto, Tetsuya Tsukamoto
  • Patent number: 7008950
    Abstract: A compound of the formula: wherein R1 and R2 each is H or a hydrocarbon group which may be substituted, or R1 and R2 form a 3- to 8-membered carbo or heterocyclic ring which may be substituted; R3 is H, a lower alkyl which may be substituted or an aromatic group which may be substituted; R4 is (1) an aromatic group which may be substituted, (2) an aliphatic hydrocarbon group substituted by an aromatic group which may be substituted, which hydrocarbon group may be further substituted or (3) an acyl; X and Y each is oxygen or sulfur which may be oxidized; and ring A is a benzene ring which may be further substituted, or a salt thereof, is useful for an agent for suppressing neurodegeneration.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: March 7, 2006
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shigenori Ohkawa, Masaki Setoh, Mitsuru Kakihana, Masahiro Okura