Patents by Inventor Yukiyoshi Yamazaki
Yukiyoshi Yamazaki 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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Publication number: 20070208025Abstract: This invention relates to pyridazine derivatives represented by the formula (1): wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (substituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients.Type: ApplicationFiled: April 30, 2007Publication date: September 6, 2007Applicant: Kowa Co., Ltd.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Publication number: 20070049595Abstract: This invention relates to pyridazine derivatives represented by the formula (1): wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (subsituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients.Type: ApplicationFiled: November 1, 2006Publication date: March 1, 2007Applicant: Kowa Co., Ltd.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Patent number: 7183295Abstract: A compound represented by the following formula (1): (wherein each of R1 and R2, which may be identical to or different from each other, represents a hydrogen atom, a methyl group, or an ethyl group; each of R3a, R3b, R4a, and R4b, which may be identical to or different from each other, represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, a C1-4 alkyl group, a trifluoromethyl group, a C1-4 alkoxy group, a C1-4 alkylcarbonyloxy group, a di-C1-4 alkylamino group, a C1-4 alkylsulfonyloxy group, a C1-4 alkylsulfonyl group, a C1-4 alkylsulfinyl group, or a C1-4 alkylthio group, or R3a and R3b, or R4a and R4b may be linked together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkylsulfonyl group, or a C1-4 alkyloxycarbonyl group); Y represents an oxygen atom, S(O)l (l is a number of 0 to 2), a carbonyl group, a carbonylamino group, an aminocarbonyl group, a sulfonylamino group, or an aminosuType: GrantFiled: April 20, 2006Date of Patent: February 27, 2007Assignee: Kowa Co., Ltd.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hidefumi Ozawa, Ayumu Okuda, Takaaki Araki, Kazutoyo Abe, Soichi Oda
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Patent number: 7135473Abstract: A cyclic diamine compound of formula (1): wherein R1 and R2 are individually a hydrogen atom or a methoxy group, provided R1 is a methoxy group when R2 is a hydrogen atom, or a hydrogen atom when R2 is a methoxy group; A is an oxygen atom, a sulfur atom, CH?CH, CH?N or NR3, in which R3 is a hydrogen atom, or a lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl, aryl or aryl lower alkyl group; B is a nitrogen atom, CH or CR4, in which R4 is a hydrogen atom, or a lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl, aryl or aryl lower alkyl group; m is 1 or 2; and n is a number of 1 to 5, an acid-addition salt thereof, or a hydrate thereof. The compound has inhibitory effects on cell adhesion and is useful for treatment of allergy, asthma, rheumatism, arteriosclerosis, and inflammation.Type: GrantFiled: August 13, 2003Date of Patent: November 14, 2006Assignee: Kowa Co., Ltd.Inventors: Tatsuhiko Kodama, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Takeshi Doi, Yoshinori Kyotani
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Patent number: 7109226Abstract: A compound represented by the following formula (1): Or a salt thereof; and therapeutic durgs containing the compound. The compound selectively activates PPAR?.Type: GrantFiled: September 3, 2004Date of Patent: September 19, 2006Assignee: Kowa Co., Ltd.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hidefumi Ozawa, Ayumu Okuda, Takaaki Araki, Kazutoyo Abe, Soichi Oda
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Patent number: 7109242Abstract: A compound represented by the following general formula (1), a salt thereof, or an ester thereof: wherein m represents an integer of 0 to 4, n represents an integer of 5 to 9, and R represents hydrogen atom or a protective group of hydroxyl group, which has reducing actions of blood glucose, plasma insulin, and triglyceride, and is useful for preventive and/or therapeutic treatment of diabetes, complications of diabetes, hyperlipemia and others.Type: GrantFiled: May 21, 2004Date of Patent: September 19, 2006Assignee: Kowa Company, Ltd.Inventors: Keisuke Inoue, Tsutomu Toma, Takahiro Kitamura, Yukiyoshi Yamazaki, Tetsuya Ishikawa
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Publication number: 20060189667Abstract: A compound represented by the following formula (1): (wherein each of R1 and R2, which may be identical to or different from each other, represents a hydrogen atom, a methyl group, or an ethyl group; each of R3a, R3b, R4a, and R4b, which may be identical to or different from each other, represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, a C1-4 alkyl group, a trifluoromethyl group, a C1-4 alkoxy group, a C1-4 alkylcarbonyloxy group, a di-C1-4 alkylamino group, a C1-4 alkylsulfonyloxy group, a C1-4 alkylsulfonyl group, a C1-4 alkylsulfinyl group, or a C1-4 alkylthio group, or R3a and R3b, or R4a and R4b may be linked together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents a hydrogen atom, a C1-4 alkyl group, a C1-4 alkylsulfonyl group, or a C1-4 alkyloxycarbonyl group); Y represents an oxygen atom, S(O)l (l is a number of 0 to 2), a carbonyl group, a carbonylamino group, an aminocarbonyl group, a sulfonylamino group, or an aminosType: ApplicationFiled: April 20, 2006Publication date: August 24, 2006Applicant: KOWA CO., LTD.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hidefumi Ozawa, Ayumu Okuda, Takaaki Araki, Kazutoyo Abe, Soichi Oda
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Publication number: 20060167058Abstract: The present invention provides a compound selectively activating PPAR?, which is useful as a medicament. The present invention is specifically directed to a benzoic acid derivative represented by the following general formula (1): wherein A represents an oxygen atom, a nitrogen atom, or a sulfur atom; R represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkyl-alkyl group, an aryl group, an aryl-alkyl group an aryl-oxy-alkyl group, a pyridyl-alkyl group, an alkoxycarbonyl-alkyl group, or a carboxy-alkyl group; X represents an oxygen atom, an NH group, or an S(O)n group (wherein n represents an integer of 0, 1, or 2); and m represents an integer from 2 to 8; or a salt thereof. The present invention also provides a medicament comprising the benzoic acid derivative or the salt thereof as an active ingredient.Type: ApplicationFiled: January 20, 2006Publication date: July 27, 2006Applicant: Kowa Co., Ltd.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hajime Yamada, Hidefumi Ozawa, Ayumu Okuda, Kazutoyo Abe
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Publication number: 20060160804Abstract: This invention relates to pyridazine derivatives represented by the formula (1): wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (subsituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients.Type: ApplicationFiled: March 22, 2006Publication date: July 20, 2006Applicant: Kowa Co., Ltd.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Publication number: 20050267113Abstract: This invention relates to pyridazine derivatives represented by the formula (1): wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (subsituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients.Type: ApplicationFiled: August 15, 2005Publication date: December 1, 2005Applicant: Kowa Co., Ltd.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Publication number: 20050176764Abstract: Abstract The present invention is directed to a method for treating cancer, a method for inhibiting histone deacetylase, and a method for facilitating gene therapy, comprising administering an effective amount of a cyclic amine compound represented by the following formula (1):(wherein R1, R2, and R3 each independently represent a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group, a halogen-substituted alkyl group, an alkoxy group, an alkylthio group, a carboxyl group, an alkoxycarbonyl group, or an alkanoyl group; W1 and W2, which are identical to or different from each other, represent N or CH; X represents O, NR4, CONR4, or NR4CO; R4 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted heteroaralkyl group; and l, m, and n each represent a number of 0 or 1), a salt thereof, or a hydrate thereof.Type: ApplicationFiled: April 11, 2003Publication date: August 11, 2005Applicant: KOWA CO., LTDInventors: Chikage Mataki, Tatsuhiko Kodama, Takeshi Doi, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Shunji Takemura, Masao Ohkuch
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Publication number: 20050101636Abstract: A compound represented by the following formula (1): Or a salt thereof; and therapeutic durgs containing the compound. The compound selectively activates PPAR?.Type: ApplicationFiled: September 3, 2004Publication date: May 12, 2005Applicant: KOWA CO., LTD.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hidefumi Ozawa, Ayumu Okuda, Takaaki Araki, Kazutoyo Abe, Soichi Oda
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Publication number: 20050065155Abstract: This invention relates to pyridazine derivatives represented by the formula (1): wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (subsituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients.Type: ApplicationFiled: November 12, 2004Publication date: March 24, 2005Applicant: KOWA CO., LTD.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Patent number: 6867221Abstract: A cyclic amine compound represented by the following general formula (1): wherein, R1, R2 and R3 each independently represent a hydrogen atom or an alkoxy group; W1 and W2 each independently represent N or CH; X represents O, NR4, CONR4 or NR4CO; R4 represents a hydrogen atom, or an alkyl, aryl, heteroaryl, aralkyl, or heteroaralkyl group; and l, m and n each represents a number of 0 or 1, a salt thereof and a hydrate thereof are provided. These compounds have inhibitory effects on both cell adhesion and cell infiltration and are useful as anti-asthmatic agents, anti-allergic agents, anti-rheumatic agents, anti-arteriosclerotic agents, anti-inflammatory agents, anti-Sjogren's syndrome agents or the like.Type: GrantFiled: July 10, 2002Date of Patent: March 15, 2005Assignee: Kowa Co., Ltd.Inventors: Tatsuhiko Kodama, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Shunji Takemura, Takeshi Doi, Yoshinori Kyotani, Masao Ohkuchi
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Publication number: 20050009909Abstract: A compound represented by the following general formula (1), a salt thereof, or an ester thereof: wherein m represents an integer of 0 to 4, n represents an integer of 5 to 9, and R represents hydrogen atom or a protective group of hydroxyl group, which has reducing actions of blood glucose, plasma insulin, and triglyceride, and is useful for preventive and/or therapeutic treatment of diabetes, complications of diabetes, hyperlipemia and others.Type: ApplicationFiled: May 21, 2004Publication date: January 13, 2005Applicant: KOWA Company, Ltd.Inventors: Keisuke Inoue, Tsutomu Toma, Takahiro Kitamura, Yukiyoshi Yamazaki, Tetsuya Ishikawa
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Publication number: 20040147516Abstract: This invention relates to pyridazine derivatives represented by the formula (1): 1Type: ApplicationFiled: January 15, 2004Publication date: July 29, 2004Applicant: Kowa Co., Ltd.Inventors: Masao Ohkuchi, Yoshinori Kyotani, Hiromichi Shigyo, Tomoyuki Koshi, Takahiro Kitamura, Tadaaki Ohgiya, Takayuki Matsuda, Yukiyoshi Yamazaki, Natsuyo Kumai, Kyoko Kotaki, Hideo Yoshizaki, Yuriko Habata
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Publication number: 20040058913Abstract: A cyclic diamine compound of formula (1): 1Type: ApplicationFiled: August 13, 2003Publication date: March 25, 2004Applicant: KOWA CO., LTD.Inventors: Tatsuhiko Kodama, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Takeshi Doi, Yoshinori Kyotani
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Publication number: 20040010147Abstract: A cyclic amine compound represented by the following general formula (1): 1Type: ApplicationFiled: July 10, 2002Publication date: January 15, 2004Applicant: KOWA CO., LTD.Inventors: Tatsuhiko Kodama, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Shunji Takemura, Takeshi Doi, Yoshinori Kyotani, Masao Ohkuchi
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Patent number: 6653334Abstract: The present invention is directed to a benzoxazole compound represented by the following formula (1): (wherein R1 represents an alkyl group, a C6-10 aryl-C1-8 alkyl group, etc.; each of R2 and R3, which are identical to or different from each other, represents a hydrogen atom, a methyl group, or an ethyl group; and n represents a number of 1 to 3) or a salt thereof and to a pharmaceutical compound containing the same. These compounds electively activate PPAR&agr;.Type: GrantFiled: December 27, 2002Date of Patent: November 25, 2003Assignee: Kowa Co., Ltd.Inventors: Yukiyoshi Yamazaki, Tsutomu Toma, Masahiro Nishikawa, Hidefumi Ozawa, Ayumu Okuda, Kazutoyo Abe, Soichi Oda
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Patent number: 6632810Abstract: A cyclic diamine compound of formula (1): wherein R1 and R2 are individually a hydrogen atom or a methoxy group, provided R1 is a methoxy group when R2 is a hydrogen atom, or a hydrogen atom when R2 is a methoxy group; A is an oxygen atom, a sulfur atom, CH═CH, CH═N or NR3, in which R3 is a hydrogen atom, or a lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl, aryl or aryl lower alkyl group; B is a nitrogen atom, CH or CR4, in which R4 is a hydrogen atom, or a lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl, aryl or aryl lower alkyl group; m is 1 or 2; and n is a number of 1 to 5, an acid-addition salt thereof, or a hydrate thereof. The compound has inhibitory effects on cell adhesion and is useful for treatment of allergy, asthma, rheumatism, arteriosclerosis, and inflammation.Type: GrantFiled: June 29, 2001Date of Patent: October 14, 2003Assignee: Kowa Co., Ltd.Inventors: Tatsuhiko Kodama, Masahiro Tamura, Toshiaki Oda, Yukiyoshi Yamazaki, Masahiro Nishikawa, Takeshi Doi, Yoshinori Kyotani