Patents by Inventor Hisashi Iwaasa
Hisashi Iwaasa 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: 7696339Abstract: There are provided non-human primate and rat GPR103 genes and proteins and a compound evaluation method employing the genes or proteins. There are also provided highly useful novel ligands for functional analysis of the GPR103 genes and proteins and for the compound evaluation. The nucleic acids or proteins having the sequences listed as SEQ ID NOS: 1 to 4 provide non-human primate or rat GPR103 genes and proteins and information based on the genes and proteins. The genes and proteins can be used for evaluation of compounds. The nucleic acids or proteins having the sequence listed as SEQ ID NO: 5 or 6 provide a GPR103 ligand.Type: GrantFiled: June 26, 2008Date of Patent: April 13, 2010Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Hideki Sano, Hisashi Iwaasa, Satoshi Mashiko
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Publication number: 20090176243Abstract: There are provided non-human primate and rat GPR103 genes and proteins and a compound evaluation method employing the genes or proteins. There are also provided highly useful novel ligands for functional analysis of the GPR103 genes and proteins and for the compound evaluation. The nucleic acids or proteins having the sequences listed as SEQ ID NOS: 1 to 4 provide non-human primate or rat GPR103 genes and proteins and information based on the genes and proteins. The genes and proteins can be used for evaluation of compounds. The nucleic acids or proteins having the sequence listed as SEQ ID NO: 5 or 6 provide a GPR103 ligand.Type: ApplicationFiled: June 26, 2008Publication date: July 9, 2009Inventors: Hideki Sano, Hisashi Iwaasa, Satoshi Mashiko
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Patent number: 7541477Abstract: This invention relates to a benzimidazole derivative of the general formula [I] [wherein B1, B2, and B3 represent hydrogen atom or lower alkyl; R1 and R2 are same or different and represent lower alkyl, etc.; R3 and R4 represent hydrogen atom, etc.; W represents a 3 to 8-membered aromatic or alphatic heterocycle, etc.; and Ar represents a substituted or unsubstituted aromatic heterocycle, etc.] This compound functions as an antagonist to melanin-concentrating hormone receptor and is useful as a drug for central diseases, circulatory diseases and metabolic diseases.Type: GrantFiled: July 29, 2003Date of Patent: June 2, 2009Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Minoru Moriya, Akio Kanatani, Hisashi Iwaasa, Akane Ishihara, Takehiro Fukami
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Patent number: 7531668Abstract: A compound represented by the formula [I]: [wherein R1 and R2 are the same or different and each represents C1-6 alkyl, C3-8 cycloalkyl, et al; R3a, R3b, and R4 are the same or different and each represents hydrogen, C1-6 alkyl, et al; X represents —N—, —CH—, et al; Y1 represents a single bond, C1-3 alkylene, et al; Y2 represents C1-4 alkylene, oxy(C1-4 alkylene), et al; Ar1 represents a monocyclic aromatic carbocyclic group, monocyclic aromatic heterocyclic group, et al; and Ar2 represents a 5- or 6-membered aromatic carbocyclic group, aromatic heterocyclic group, et al]. This compound functions as a melanin-concentrating hormone receptor antagonist and is useful as, e.g., a therapeutic agent for obesity, et al.Type: GrantFiled: September 30, 2005Date of Patent: May 12, 2009Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Takao Suzuki, Minoru Moriya, Shunji Sakuraba, Sayaka Mizutani, Hisashi Iwaasa, Akio Kanatani
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Patent number: 7485647Abstract: This invention provides 2-aminoquinoline derivatives represented by a general formula [I] [in which R1 and R2 either stand for lower alkyl, lower cycloalkyl, etc., or R1 and R2 together form an aliphatic nitrogen-containing heterocycle with the nitrogen atom to which they bind; R3, R4, R5, R6 and R7 stand for hydrogen, lower alkyl, etc.; R8 stands for lower alkyl, lower alkyloxy, etc.; and n stands for an integer of 0-4]. The compounds act as melanin concentrating hormone receptor antagonist, and are useful as medicines for central nervous system disorders, cardiovascular disorders and metabolic disorders.Type: GrantFiled: May 20, 2004Date of Patent: February 3, 2009Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Minoru Moriya, Takao Suzuki, Akane Ishihara, Hisashi Iwaasa, Akio Kanatani
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Patent number: 7422898Abstract: There are provided non-human primate and rat GPR103 genes and proteins and a compound evaluation method employing the genes or proteins. There are also provided highly useful novel ligands for functional analysis of the GPR103 genes and proteins and for the compound evaluation. The nucleic acids or proteins having the sequences listed as SEQ ID NOS: 1 to 4 provide non-human primate or rat GPR103 genes and proteins and information based on the genes and proteins. The genes and proteins can be used for evaluation of compounds. The nucleic acids or proteins having the sequence listed as SEQ ID NO: 5 or 6 provide a GPR103 ligand.Type: GrantFiled: April 14, 2005Date of Patent: September 9, 2008Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Hideki Sano, Hisashi Iwaasa, Satoshi Mashiko
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Publication number: 20080118436Abstract: An object of the present invention is to provide a pathologic model animal more accurately reflecting the pathologic conditions of nonalcoholic steatohepatitis patients, and the present invention provides the pathologic model animal for nonalcoholic steatohepatitis produced by continuously administering a tetracycline antibiotic to an animal having its body weight significantly increased compared with that of a group fed with a normal diet by feeding it with a high-fat diet.Type: ApplicationFiled: September 13, 2005Publication date: May 22, 2008Inventors: Jun Suzuki, Hisashi Iwaasa, Minoru Sasaki, Makoto Ito, Akio Kanatani
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Publication number: 20080009016Abstract: There are provided non-human primate and rat GPR103 genes and proteins and a compound evaluation method employing the genes or proteins. There are also provided highly useful novel ligands for functional analysis of the GPR103 genes and proteins and for the compound evaluation. The nucleic acids or proteins having the sequences listed as SEQ ID NOS: 1 to 4 provide non-human primate or rat GPR103 genes and proteins and information based on the genes and proteins. The genes and proteins can be used for evaluation of compounds. The nucleic acids or proteins having the sequence listed as SEQ ID NO: 5 or 6 provide a GPR103 ligand.Type: ApplicationFiled: April 14, 2005Publication date: January 10, 2008Inventors: Hideki Sano, Hisashi Iwaasa, Satoshi Mashiko
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Publication number: 20070299070Abstract: A compound represented by the formula [I]: [wherein R1 and R2 are the same or different and each represents C1-6 alkyl, C3-8 cycloalkyl, et al; R3a, R3b, and R4 are the same or different and each represents hydrogen, C1-6 alkyl, et al; X represents —N—, —CH—, et al; Y, represents a single bond, C1-3 alkylene, et al; Y2 represents C1-4 alkylene, oxy(C1-4 alkylene), et al; Ar1 represents a monocyclic aromatic carbocyclic group, monocyclic aromatic heterocyclic group, et al; and Ar2 represents a 5- or 6-membered aromatic carbocyclic group, aromatic heterocyclic group, et al]. This compound functions as a melanin-concentrating hormone receptor antagonist and is useful as, e.g., a therapeutic agent for obesity, et al.Type: ApplicationFiled: September 30, 2005Publication date: December 27, 2007Inventors: Takao Suzuki, Minoru Moriya, Shunji Sakuraba, Sayaka Mizutani, Hisashi Iwaasa, Akio Kanatani
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Publication number: 20070083037Abstract: It is intended to provide a nucleic acid represented by SEQ ID NO: 1 or 3; a protein represented by SEQ ID NO: 2 or 4; a recombinant vector containing a gene which comprises the above-described nucleic acid; a nonhuman primate NPY Y4 gene obtained by using a transformed cell containing the above-described recombinant vector; and so on. Moreover, it becomes possible to evaluate or screen a compound acting on the NPY Y4 receptor.Type: ApplicationFiled: November 1, 2004Publication date: April 12, 2007Inventors: Hideki Sano, Hisashi Iwaasa
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Publication number: 20060287340Abstract: This invention provides 2-aminoquinoline derivatives represented by a general formula [I] [in which R1 and R2 either stand for lower alkyl, lower cycloalkyl, etc., or R1 and R2 together form an aliphatic nitrogen-containing heterocycle with the nitrogen atom to which they bind; R3, R4, R5, R6 and R7 stand for hydrogen, lower alkyl, etc.; R8 stands for lower alkyl, lower alkyloxy, etc.; and n stands for an integer of 0-4]. The compounds act as melanin concentrating hormone receptor antagonist, and are useful as medicines for central nervous system disorders, cardiovascular disorders and metabolic disorders.Type: ApplicationFiled: May 20, 2004Publication date: December 21, 2006Inventors: Minoru Moriya, Takao Suzuki, Akane Ishihara, Hisashi Iwaasa, Akio Kanatani
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Publication number: 20050222161Abstract: This invention relates to a benzimidazole derivative of the general formula [I] [wherein B1, B2, and B3 represent hydrogen atom or lower alkyl; R1 and R2 are same or different and represent lower alkyl, etc.; R3 and R4 represent hydrogen atom, etc.; W represents a 3 to 8-membered aromatic or alphatic heterocycle, etc.; and Ar represents a substituted or unsubstituted aromatic heterocycle, etc.] This compound functions as an antagonist to melanin-concentrating hormone receptor and is useful as a drug for central diseases, circulatory diseases and metabolic diseases.Type: ApplicationFiled: July 29, 2003Publication date: October 6, 2005Applicant: BANYU PHARMACEUTICAL CO., LTDInventors: Minoru Moriya, Akio Kanatani, Hisashi Iwaasa, Akane Ishihara, Takehiro Fukami
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Patent number: 6838465Abstract: This invention relates to novel compounds represented by the general formula [I]: (wherein, R1 and R4 are the same or different, and represent hydrogen atoms, lower alkyl groups or the like; R2 and R3 are the same or different, and represent lower alkoxy groups or lower alkyl groups; R5 represents a lower alkyl group or aralkyl group optionally having substituent(s); R6 represents a hydrogen atom or a lower alkyl group; X represents O, S or NH; m represents an integer of 0 to 3; n represents an integer of 0 or 1; and Ar represents a phenyl group or heteroaryl group optionally having substituent(s)). The compounds of the invention have an antagonistic action on orexin receptors, and are useful for treatment of appetite abnormality, obesity, sleeping disorder or the like.Type: GrantFiled: April 27, 2001Date of Patent: January 4, 2005Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Koji Yamada, Masaaki Hirose, Hisashi Iwaasa
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Publication number: 20040044031Abstract: This invention relates to novel compounds represented by the general formula [I] 1Type: ApplicationFiled: January 9, 2003Publication date: March 4, 2004Inventors: Koji Yamada, Masaaki Hirose, Hisashi Iwaasa