Patents by Inventor Norihiko Kikuchi
Norihiko Kikuchi 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: 9023882Abstract: 5-membered heterocyclic derivatives represented by general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof. In the formula (I), T represents nitro, cyano and the like; ring J represents aryl or heteroaryl; Q represents carboxy, 5-tetazolyl and the like; Y represents H, OH, NH2, halogen, haloalkyl and the like; X1 and X2 independently represent CR2 or N; R2 represents H, alkyl and the like; R1 represents halogen, cyano, haloalkyl, A-D-E-G-L-M, —N(-D-L-M)2 and the like, A represents a single bond, O, S and the like; D, G and M independently represent optionally substituted alkylene, cycloalkylene, heterocycloalkylene, arylene, heteroarylene and the like; E and L independently represent a single bond, O, S, COO, SO2 and the like.Type: GrantFiled: June 12, 2012Date of Patent: May 5, 2015Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 8993616Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: GrantFiled: May 16, 2013Date of Patent: March 31, 2015Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 8829040Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: GrantFiled: February 28, 2014Date of Patent: September 9, 2014Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Publication number: 20140179932Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: ApplicationFiled: February 28, 2014Publication date: June 26, 2014Applicant: KISSEI PHARMACEUTICAL CO., LTD.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Publication number: 20130252955Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: ApplicationFiled: May 16, 2013Publication date: September 26, 2013Applicant: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 8466152Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: GrantFiled: May 26, 2011Date of Patent: June 18, 2013Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Publication number: 20120289506Abstract: 5-membered heterocyclic derivatives represented by general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof. In the formula (I), T represents nitro, cyano and the like; ring J represents aryl or heteroaryl; Q represents carboxy, 5-tetazolyl and the like; Y represents H, OH, NH2, halogen, haloalkyl and the like; X1 and X2 independently represent CR2 or N; R2 represents H, alkyl and the like; R1 represents halogen, cyano, haloalkyl, A-D-E-G-L-M, —N(-D-L-M)2 and the like, A represents a single bond, O, S and the like; D, G and M independently represent optionally substituted alkylene, cycloalkylene, heterocycloalkylene, arylene, heteroarylene and the like; E and L independently represent a single bond, O, S, COO, SO2 and the like.Type: ApplicationFiled: June 12, 2012Publication date: November 15, 2012Applicant: KISSEI PHARMACEUTICAL CO., LTD.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 8227500Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to 5-membered heterocyclic derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: GrantFiled: April 10, 2008Date of Patent: July 24, 2012Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Publication number: 20110230454Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: ApplicationFiled: May 26, 2011Publication date: September 22, 2011Applicant: KISSEI PHARMACEUTICAL CO., LTD.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 8003647Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: GrantFiled: April 10, 2008Date of Patent: August 23, 2011Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 7888487Abstract: Pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents a substituted C6-10 aryl group, etc., and n represents 0 to 2, R represents an optionally substituted C3-8 cycloalkyl group, etc., pharmaceutically acceptable salts thereof or prodrugs thereof, which exhibit an excellent inhibitory activity in human 1,5-anhydroglucitol/fructose/mannose transporter and are useful as agents for the prevention, inhibition of progression or treatment of a disease associated with the excess uptake of at least a kind of carbohydrates from glucose, fructose and mannose or a disease associated with hyperglycemia and pharmaceutical compositions comprising the same, pharmaceutical uses thereof, and intermediates for production thereof.Type: GrantFiled: August 3, 2009Date of Patent: February 15, 2011Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
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Publication number: 20100249054Abstract: The present invention provides an 8-modified purinenucleoside derivative which is useful for diseases associated with an abnormality of plasma uric acid level. An 8-modified purinenucleoside derivative represented by the following formula (I), a prodrug thereof or a pharmaceutically acceptable salt thereof, or a hydrate or solvate thereof, is useful for the prevention or treatment of gout, hyperuricemia, urinary lithiasis, hyperuricemic nephropathy or the like. In the formula, n is 1 or 2; RA is a hydrogen atom or a hydroxyl group; R1 is a hydrogen atom, a hydroxyl group, a thiol group, an amino group or a chlorine atom; ring J represents an optionally substituted 2-naphthyl group, or a group represented by the following general formula (II) wherein Y represents a single bond or a connecting group; ring Z represents an optionally substituted aryl group or heteroaryl group or the like; and R2 to R4, P1 and Q represents a halogen atom, a cyano group or the like.Type: ApplicationFiled: March 13, 2007Publication date: September 30, 2010Inventors: Kazuya Tatani, Yoshinori Nonaka, Norihiko Kikuchi
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Patent number: 7795236Abstract: The present invention provides an 8-modified purinenucleoside derivative which is useful for diseases associated with an abnormality of plasma uric acid level. An 8-modified purinenucleoside derivative represented by the following formula (I), a prodrug thereof or a pharmaceutically acceptable salt thereof, or a hydrate or solvate thereof, is useful for the prevention or treatment of gout, hyperuricemia, urinary lithiasis, hyperuricemic nephropathy or the like. In the formula, n is 1 or 2; RA is a hydrogen atom or a hydroxyl group; R1 is a hydrogen atom, a hydroxyl group, a thiol group, an amino group or a chlorine atom; ring J represents an optionally substituted 2-naphthyl group, or a group represented by the following general formula (II) wherein Y represents a single bond or a connecting group; ring Z represents an optionally substituted aryl group or heteroaryl group or the like; and R2 to R4, P1 and Q represents a halogen atom, a cyano group or the like.Type: GrantFiled: March 13, 2007Date of Patent: September 14, 2010Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kazuya Tatani, Yoshinori Nonaka, Norihiko Kikuchi
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Publication number: 20100227864Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to 5-membered heterocyclic derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: ApplicationFiled: April 10, 2008Publication date: September 9, 2010Applicant: KISSEI PHARMACEUTICAL CO., LTD.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Patent number: 7791247Abstract: An automatic focus camera Unit 10, comprises; a piezoelectric element 13a; a driving shaft 13b to be driven by the piezoelectric element 13a; a moving unit 13c to be moved with respect to the driving shaft 13b by a friction force caused by the driving shaft 13b; a microcomputer unit 24 for controlling power supply to the piezoelectric element 13a, and in which the microcomputer unit 24 assumes a preprocessing mode of calculating an amount of adjustment for a power supply time in accordance with a moving direction of the moving unit 13c, and a movement controlling mode of adjusting the supply time and controlling power supply based on the moving direction and the amount of adjustment.Type: GrantFiled: July 20, 2006Date of Patent: September 7, 2010Assignee: Panasonic CorporationInventors: Norihiko Kikuchi, Nobuyuki Hirose
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Publication number: 20100220987Abstract: It is an object of the present invention to provide an imaging device that can be reduced in production cost in comparison with the conventional imaging device, and a portable terminal provided with the imaging device. The imaging device 10 comprises a lens 11 for focusing light from an object, a magnet 12 attached to the lens 11, lens moving means 13 for moving the lens 11 along an optical axis of the lens 11, a hall element 14 for detecting a magnetic flax generated by the magnet 12, a constant current circuit 15 for driving the hall element 14, an amplifier 16 for amplifying an output voltage of the hall element 14, a comparator 17 for comparing a reference voltage with the output voltage of the hall element 14, a PWM signal producing unit 18 for producing a pulse width modulation signal, a lens controller 19 for outputting a control signal to the lens moving means 13 to control the lens moving means 13, and a lens driver 20 for driving the lens moving means 13.Type: ApplicationFiled: July 14, 2006Publication date: September 2, 2010Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Akihiko Kato, Norihiko Kikuchi, Takashi Kusakari
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Publication number: 20100056521Abstract: The present invention provides compounds useful as agents for the prevention or treatment of a disease associated with abnormal serum uric acid level which has a uricosuric activity or the like. The present invention relates to (aza)indole derivatives represented by the following general formula (I) having xanthine oxidase inhibitory activities and useful as agents for the prevention or treatment of a disease associated with abnormality of serum uric acid level, prodrugs thereof, or salts thereof.Type: ApplicationFiled: April 10, 2008Publication date: March 4, 2010Applicant: KISSEI PHARMACEUTICAL CO., LTD.Inventors: Kazuo Shimizu, Yasushi Takigawa, Hideki Fujikura, Masato Iizuka, Masahiro Hiratochi, Norihiko Kikuchi
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Publication number: 20100029919Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: , and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.Type: ApplicationFiled: August 3, 2009Publication date: February 4, 2010Applicant: Kissei Pharmaceutical Co., Ltd.Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji
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Patent number: 7589126Abstract: The present invention relates to a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted lower alkyl group; R2 is a di(lower alkyl)amino group, a lower alkyl group, a cycloalkyl group, an optionally substituted aryl group, an optionally substituted heterocycloalkyl group, or an optionally substituted aromatic heterocyclic group; T is an oxygen atom, a sulfur atom, a sulfonyl group etc.; Q is a hydrogen atom or an optionally substituted lower alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof, which exert a potent and selective activated blood coagulation factor X inhibitory activity and is useful as an agent for the prevention or treatment of a disease occurred associating an activated blood coagulation factor X, a pharmaceutical composition comprising the same, a pharmaceutical use thereof and an intermediate thereof.Type: GrantFiled: October 27, 2006Date of Patent: September 15, 2009Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Kosuke Okazaki, Masahiko Uchida, Harunobu Mukaiyama, Hiroaki Kobayashi, Yuichiro Kai, Hideki Takeuchi, Kenji Yokoyama, Yoshihiro Terao, Yuji Hoyano, Hiroaki Shiohara, Norihiko Kikuchi
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Patent number: 7576063Abstract: The present invention provides pyrazole derivatives represented by the general formula: wherein R1 represents H, an optionally substituted C1-6 alkyl group etc.; one of Q and T represents a group selected from the following groups: and the other represents —(CH2)n—Ar wherein Ar represents an optionally substituted C6-10 aryl group or an optionally substituted C1-9 heteroaryl group; and n represents an integral number from 0 to 2, an optionally substituted C1-6 alkoxyl group, an optionally substituted amino group, an optionally substituted C2-9 heterocycloalkyl group or an optionally substituted heterocycle-fused phenyl group; R represents an optionally substituted C3-8 cycloalkyl group, an optionally substituted C6-10 aryl group etc.Type: GrantFiled: September 30, 2003Date of Patent: August 18, 2009Assignee: Kissei Pharmaceutical Co., Ltd.Inventors: Hideki Fujikura, Norihiko Kikuchi, Shigeki Tazawa, Tokuhisa Yamato, Masayuki Isaji