Patents by Inventor Yasuhiko Kawano
Yasuhiko Kawano 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).
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Patent number: 9108986Abstract: Provided are a novel chiral iridium(III) complex; and a method for producing optically active 2-substituted-1,2,3,4-tetrahydroquinolines from 2-substituted-quinolines with the use of the chiral iridium(III) complex through a more economical and easy production process.Type: GrantFiled: July 13, 2012Date of Patent: August 18, 2015Assignee: HAMARI CHEMICALS, LTD.Inventors: Sadayuki Maeda, Tatsunori Sato, Yasuhiko Kawano, Toshio Miyawaki
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Publication number: 20140228572Abstract: Provided are a novel chiral iridium(III) complex; and a method for producing optically active 2-substituted-1,2,3,4-tetrahydroquinolines from 2-substituted-quinolines with the use of the chiral iridium(III) complex through a more economical and easy production process.Type: ApplicationFiled: July 13, 2012Publication date: August 14, 2014Applicant: HAMARI CHEMICALS, LTD.Inventors: Sadayuki Maeda, Tatsunori Sato, Yasuhiko Kawano, Toshio Miyawaki
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Patent number: 7973163Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; --- represents unsubstituted (i.e., absence) or a single bond; and represents a single bond or a double bond, or a salt thereof, and the like.Type: GrantFiled: June 2, 2009Date of Patent: July 5, 2011Assignee: Takeda Pharmaceutical Company Ltd.Inventors: Masahiro Kajino, Yasuhiko Kawano
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Patent number: 7943770Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; ?represents unsubstituted (i.e., absence) or a single bond; and ?represents a single bond or a double bond, or a salt thereof, and the like.Type: GrantFiled: June 2, 2009Date of Patent: May 17, 2011Assignee: Takeda Pharmaceutical Company LimitedInventors: Masahiro Kajino, Yasuhiko Kawano
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Publication number: 20090275568Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; represents unsubstituted (i.e., absence) or a single bond; and represents a single bond or a double bond, or a salt thereof, and the like.Type: ApplicationFiled: July 7, 2009Publication date: November 5, 2009Applicant: Takeda Pharmaceutical Company LimitedInventors: Masahiro Kajino, Nicholas William Hird, Naoki Tarui, Hiroshi Banno, Yasuhiko Kawano, Nobuhiro Inatomi
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Publication number: 20090270625Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; — --- represents unsubstituted (i.e., absence) or a single bond; and represents a single bond or a double bond, or a salt thereof, and the like.Type: ApplicationFiled: June 2, 2009Publication date: October 29, 2009Applicant: Takeda Pharmaceutical Company LimtedInventors: Masahiro Kajino, Nicholas William Hird, Naoki Tarui, Hiroshi Banno, Yasuhiko Kawano, Nobuhiro Inatomi
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Publication number: 20090258893Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; represents unsubstituted (i.e., absence) or a single bond; and represents a single bond or a double bond, or a salt thereof, and the like.Type: ApplicationFiled: June 2, 2009Publication date: October 15, 2009Applicant: Takeda Pharmaceutical Company LimitedInventors: Masahiro Kajino, Nicholas William Hird, Naoki Tarui, Hiroshi Banno, Yasuhiko Kawano, Nobuhiro Inatomi
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Patent number: 7592453Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; ?represents unsubstituted (i.e., absence) or a single bond; and ?represents a single bond or a double bond, or a salt thereof, and the like.Type: GrantFiled: April 28, 2005Date of Patent: September 22, 2009Assignee: Takeda Pharmaceutical Company LimitedInventors: Masahiro Kajino, Yasuhiko Kawano
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Publication number: 20080039452Abstract: The present invention aims at provision of a quinoline derivative having a neurokinin 2 (NK2) receptor antagonistic action and relates to a compound represented by the formula (I) wherein R1 is a hydrogen atom and the like; R2 is a hydrogen atom, a hydrocarbon group optionally having substituent(s) and the like; R3 is unsubstituted (i.e., absence), a hydrogen atom and the like; R4 and R5 are the same or different and each is a hydrogen atom, a hydrocarbon group optionally having substituent(s), and the like; R6 is (cyclic group optionally having substituent(s))-carbonyl, and the like; R7, R8, R9 and R10 are the same or different and each is a hydrogen atom, halogen and the like; or R7 and R8, R8 and R9, and R9 and R10 may form a ring together with the adjacent carbon atoms; n is an integer of 1 to 5; --- represents unsubstituted (i.e., absence) or a single bond; and represents a single bond or a double bond, or a salt thereof, and the like.Type: ApplicationFiled: April 28, 2005Publication date: February 14, 2008Applicant: Takeda Pharmaceutical Company LimitedInventors: Masahiro Kajino, Nicholas Hird, Naoki Tarui, Hiroshi Banno, Yasuhiko Kawano, Nobuhiro Inatomi
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Patent number: 6924292Abstract: A compound having a partial structure represented by Formula: or a salt thereof has an excellent phosphodiesterase (PDE) IV-inhibiting effect, and is useful as a prophylactic or therapeutic agent against inflammatory diseases, for example, bronchial asthma, chronic obstructive pulmonary disease (COPD), rheumatoid arthritis, autoimmune disease, diabetes and the like.Type: GrantFiled: March 22, 2001Date of Patent: August 2, 2005Assignee: Takeda Chemical Industries, Ltd.Inventors: Yasuhiko Kawano, Tatsumi Matsumoto, Osamu Uchikawa, Nobuhiro Fujii, Naoki Tarui
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Publication number: 20040254189Abstract: A c-Jun N-terminal kinase activation inhibitor which comprises a compound represented by the formula: 1Type: ApplicationFiled: February 20, 2004Publication date: December 16, 2004Inventors: Hideaki Nagaya, Yasuhiko Kawano, Takayuki Kamel
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Publication number: 20040092582Abstract: A compound having a partial structure represented by Formula: 1Type: ApplicationFiled: September 20, 2002Publication date: May 13, 2004Inventors: Yasuhiko Kawano, Tatsumi Matsumoto, Osamu Uchikawa, Nobuhiro Fujii, Naoki Tarui
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Patent number: 6627630Abstract: A condensed pyridazine derivative which is useful as a pharmaceutical composition for preventing or treating allergic skin diseases such as contact dermatitis, pruritus, dried dermatitis, acute urticaria and prurigo.Type: GrantFiled: April 18, 2001Date of Patent: September 30, 2003Assignee: Takeda Chemical Industries, Ltd.Inventors: Yasuhiko Kawano, Hideaki Nagaya, Michiyo Gyoten, Yukio Hara, Motoki Ikeuchi
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Patent number: 6610694Abstract: A condensed pyridazine derivative which exhibits anti-allergic activity, anti-histaminic activity and/or eosinophil chemotaxis-inhibiting activity, anti-inflammatory activity, anti-PAF (platelet-activating factor) activity, and the like, and is useful as an agent for preventing or treating asthma, allergic conjunctivitis, allergic rhinitis, urticaria, atopic dermatitis, and the like.Type: GrantFiled: April 2, 2001Date of Patent: August 26, 2003Assignee: Takeda Chemical Industries, Ltd.Inventors: Yasuhiko Kawano, Hideaki Nagaya, Michiyo Gyoten
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Publication number: 20010013827Abstract: The invention relates to a travel support system and a vehicle entrance control system. The central computer comprises a service information D/B that stores information pertaining to proposable services and corresponding vehicle information pertaining to vehicles; a transmission unit that receives vehicle information from a subordinate device; and a controller that reads service information corresponding to the vehicle information received by the transmission unit from the service information D/B, wherein the transmission unit transmits the read service information to the subordinate device, and the subordinate device is provided with a ROM that stores vehicle information pertaining to vehicles, and a transmission unit that transmits the vehicle information stored in the ROM to the central computer and receives service information from the central computer.Type: ApplicationFiled: February 13, 2001Publication date: August 16, 2001Applicant: Sumitomo Electric Industries, Ltd.Inventor: Yasuhiko Kawano
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Patent number: 6248740Abstract: The present invention provides a compound represented by the formula: wherein Ar1 and Ar2 are independently an aromatic group which may be substituted, and Ar1 and Ar2 may form a condensed cyclic group with an adjacent carbon atom; ring B is a nitrogen-containing heterocycle which may be substituted; X and Y are the same or different and are independently a bond, an oxygen atom, S(O)p (p is an integer of 0 ot 2), NR4 wherein R4 is a hydrogen atom or a lower alkyl group, or a bivalent linear lower hydrocarbon group which may contain 1 to 3 hetero atoms and the bivalent linear lower hydrocarbon group may be substituted; A is a nitrogen atom or CR7 wherein R7 is a hydrogen atom, a halogen atom, a hydrocarbon which may be substituted, an acyl group or a hydroxy group which may be substituted; R1, R2 and R3 are the same or different and are independently a hydrogen atom, a halogen atom, a hydrocarbon group which may be substituted, an acyl group or a hydroxy group which may be substituted; R8 isType: GrantFiled: April 14, 1999Date of Patent: June 19, 2001Assignee: Takeda Chemical Industries, Ltd.Inventors: Yasuhiko Kawano, Hideaki Nagaya, Michiyo Gyoten
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Patent number: 5491145Abstract: Novel compound of the general formula: ##STR1## wherein R.sup.1 stands for a hydrogen atom, an optionally substituted lower alkyl group or a halogen atom; R.sup.2 and R.sup.3 respectively stand for a hydrogen atom or an optionally substituted lower alkyl group, provided that either R.sup.2 or R.sup.3 is a hydrogen atom, the other being an optionally substituted lower alkyl group, or R.sup.2 and R.sup.3 may, taken together with the adjacent --C=C-- group, form a 5- to 7-membered ring; X stands for an oxygen atom or S(O).sub.p (p stands for an integer from 0 to 2; Y stands for a group of the formula: ##STR2## (R.sup.4 and R.sup.5 respectively stand for a hydrogen atom or an optionally substituted lower alkyl group) or a divalent group derived from an optionally substituted 3- to 7-membered homocyclic or heterocyclic ring; R.sup.6 and R.sup.7 each stands for a hydrogen atom, an optionally substituted lower lakyl group, an optionally substituted cycloalkyl group or an optionally substituted aryl group, or R.sup.Type: GrantFiled: November 21, 1994Date of Patent: February 13, 1996Assignee: Takeda Chemical Industries, Ltd.Inventors: Akio Miyake, Yasuhiko Kawano, Yasuko Ashida
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Patent number: 5482939Abstract: Novel compound represented by the formula: ##STR1## wherein R.sup.1 stands for H, an optionally substituted lower alkyl group or a halogen; R.sup.2 and R.sup.3 respectively stands for a hydrogen or an optionally substituted lower alkyl group, or R.sup.2 and R.sup.3 may, taken together with the adjacent --C.dbd.C-- group, form a 5- to 7-membered ring; X stands for O, SO or SO.sub.2 ; Y stands for a group of the formula: ##STR2## (R.sup.4 and R.sup.5 respectively stand for H or an optionally substituted lower alkyl group) or a divalent group derived from an optionally substituted 3- to 7-membered homocyclic or heterocyclic ring; R.sup.6 and R.sup.7 each stands for H, an optionally substituted lower alkyl group, an optionally substituted cycloalkyl group or an optionally substituted aryl group, or R.sup.6 and R.sup.Type: GrantFiled: September 16, 1994Date of Patent: January 9, 1996Assignee: Takeda Chemical Industries, Ltd.Inventors: Akio Miyake, Yasuhiko Kawano, Yasuko Ashida
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Patent number: 5389633Abstract: Novel compound represented by the formula: ##STR1## wherein R.sup.1 stands for H, an optionally substituted lower alkyl group or a halogen; R.sup.2 and R.sup.3 respectively stands for a hydrogen or an optionally substituted lower alkyl group, or R.sup.2 and R.sup.3 may, taken together with the adjacent --C.dbd.C-- group, form a 5- to 7-membered ring; X stands for O, SO or SO.sub.2 ; Y stands for a group of the formula: ##STR2## (R.sup.4 and R.sup.5 respectively stand for H or an optionally substituted lower alkyl group) or a divalent group derived from an optionally substituted 3- to 7-membered homocyclic or heterocyclic ring; R.sup.6 and R.sup.7 each stands for H, an optionally substituted lower alkyl group, an optionally substituted cycloalkyl group or an optionally substituted aryl group, or R.sup.6 and R.sup.Type: GrantFiled: March 17, 1993Date of Patent: February 14, 1995Assignee: Takeda Chemical Industries, Ltd.Inventors: Akio Miyake, Yasuhiko Kawano, Yasuko Ashida
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Patent number: 5369104Abstract: Novel compound represented by the formula: ##STR1## wherein X stands for a methine (i.e. the group --CH.dbd.) group or a nitrogen atom; R.sup.1 stands for a hydrogen atom, an optionally substituted lower alkyl group or a halogen atom; R.sup.2 and R.sup.3 respectively stand for a hydrogen atom or an optionally substituted lower alkyl group, or, taken together, may form a 5- to 7-membered ring combined with the adjacent --C.dbd.C--; R.sup.4 and R.sup.5 respectively stands for a hydrogen atom or an optionally substituted lower alkyl group or, taken together, form a 3- to 7-membered homo- or heterocyclic ring combined with the adjacent carbon atom; A stands for an optionally substituted amino group; m and n denote 1 to 4, respectively, or salts thereof which has an antiallergic, antiinflammatory and anti-PAF activity and is useful as an antiasthmatic agent.Type: GrantFiled: December 28, 1992Date of Patent: November 29, 1994Assignee: Takeda Chemical Industries, Ltd.Inventors: Akio Miyake, Yasuhiko Kawano, Yasuko Ashida