Patents by Inventor Akane Ishihara

Akane Ishihara 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: 20100184648
    Abstract: A therapeutic agent for a non-alcoholic fatty liver disease comprising a melanin-concentrating hormone receptor antagonist as an active ingredient, which is developed based on a novel mechanism of action that a melanin-concentrating hormone receptor is involved in non-alcoholic fatty liver diseases. A method for screening a drug candidate compound for the treatment or prevention of a non-alcoholic fatty liver disease by utilizing the mechanism.
    Type: Application
    Filed: March 28, 2006
    Publication date: July 22, 2010
    Inventors: Akira Gomori, Akane Ishihara, Hisashi Iwasa, Jun Suzuki, Makoto Ito, Akio Kanatani
  • Publication number: 20100137391
    Abstract: Disclosed are: novel use of an agonist histamine receptor H3 (e.g., Imetit) for prevention of obesity or the reduction of food intake; a method for evaluation of a compound for use as a therapeutic agent targeted to histamine receptor HR protein; and a compound provided by the method.
    Type: Application
    Filed: September 13, 2006
    Publication date: June 3, 2010
    Inventors: Ryo Yoshimoto, Akane Ishihara, Akio Kanatani, Shigeru Tokita
  • Patent number: 7541477
    Abstract: 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: Grant
    Filed: July 29, 2003
    Date of Patent: June 2, 2009
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Minoru Moriya, Akio Kanatani, Hisashi Iwaasa, Akane Ishihara, Takehiro Fukami
  • Patent number: 7510833
    Abstract: In the examination of obesity or leanness, the examination is based on the expression level of the MCP-1 gene or the MCP-1 protein in a tissue or cell analyte, or on the polymorphism in the gene. In the evaluation of compounds, including screening for therapeutic agents for obesity or leanness, the properties of the MCP-1 gene or the MCP-1 protein are utilized to carry out the evaluation.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: March 31, 2009
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Hidehito Kotani, Hiraku Itadani, Hiromitsu Araki, Kazuhiko Takahashi, Satoshi Mashiko, Akane Ishihara, Akio Kanatani
  • Patent number: 7485647
    Abstract: 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: Grant
    Filed: May 20, 2004
    Date of Patent: February 3, 2009
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Minoru Moriya, Takao Suzuki, Akane Ishihara, Hisashi Iwaasa, Akio Kanatani
  • Patent number: 7482358
    Abstract: Compounds represented by the general formula (I): wherein Ar1 and Ar2 are each aryl or heteroaryl; R1 is lower cycloalkyl, —Ar3, or a group of the general formula (a), (b) or (c): and R2 and R3are each hydrogen, lower cycloalkyl, lower alkenyl, or optionally substituted lower alkyl (with the proviso that when R2 and R3 are simultaneously hydrogen, Ar1, Ar2 and R1 do not simultaneously represent unsubstituted phenyl).
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: January 27, 2009
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Nagaaki Sato, Osamu Okamoto, Makoto Jitsuoka, Keita Nagai, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Takehiro Fukami
  • Patent number: 7304072
    Abstract: Compounds represented by the general formula (I) wherein Ar1 represents an aryl or heteroaryl which may be substituted; n represents 0 or 1; T, U, V and W each independently represent a nitrogen atom or a methine group which may have a substituent selected from the group consisting of halogen, lower alkyl, hydroxy and lower alkoxy, wherein at least two of which represent said methine group; X represents methine, hydroxy substituted methine or nitrogen atom; Y represents an imino which may be substituted with lower alkyl, or oxygen; and a salt, ester or N-oxide derivative thereof. The compounds exhibit NPY antagonistic activities and are useful as agents for the treatment of various diseases related to NPY, for example, cardiovascular disorders, central nervous system disorders, metabolic diseases, sexual and reproductive dysfunctions, gastro-intestinal disorders, respiratory disorders, inflammation or glaucoma, and the like.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: December 4, 2007
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh, Masato Chiba
  • Publication number: 20070031833
    Abstract: In the examination of obesity or leanness, the examination is based on the expression level of the MCP-1 gene or the MCP-1 protein in a tissue or cell analyte, or on the polymorphism in the gene. In the evaluation of compounds, including screening for therapeutic agents for obesity or leanness, the properties of the MCP-1 gene or the MCP-1 protein are utilized to carry out the evaluation.
    Type: Application
    Filed: March 12, 2004
    Publication date: February 8, 2007
    Applicant: BANYU PHARMACEUTICAL CO., LTD.
    Inventors: Hidehito Kotani, Hiraku Itadani, Hiromitsu Araki, Kazuhiko Takahashi, Satoshi Mashiko, Akane Ishihara, Akio Kanatani
  • Publication number: 20060287340
    Abstract: 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: Application
    Filed: May 20, 2004
    Publication date: December 21, 2006
    Inventors: Minoru Moriya, Takao Suzuki, Akane Ishihara, Hisashi Iwaasa, Akio Kanatani
  • Publication number: 20060135559
    Abstract: Compounds represented by the general formula (I): wherein Ar1 and Ar2 are each aryl or heteroaryl; R1 is lower cycloalkyl, —Ar3, or a group of the general formula (a), (b) or (c): and R2 and R3are each hydrogen, lower cycloalkyl, lower alkenyl, or optionally substituted lower alkyl (with the proviso that when R2 and R3 are simultaneously hydrogen, Ar1, Ar2 and R1 do not simultaneously represent unsubstituted phenyl).
    Type: Application
    Filed: February 7, 2006
    Publication date: June 22, 2006
    Inventors: Nagaaki Sato, Osamu Okamoto, Makoto Jitsuoka, Keita Nagai, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Takehiro Fukami
  • Patent number: 7064142
    Abstract: Compounds represented by the general formula (I): wherein Ar1 and Ar2 are each aryl or heteroaryl; R1 is lower cycloalkyl, —Ar3, or a group of the general formula (a), (b) or (c): and R2 and R3 are each hydrogen, lower cycloalkyl, lower alkenyl, or optionally substituted lower alkyl (with the proviso that when R2 and R3 are simultaneously hydrogen, Ar1, Ar2 and R1 do not simultaneously represent unsubstituted phenyl).
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: June 20, 2006
    Assignee: Banyu Pharmaceutical, Co., Ltd.
    Inventors: Nagaaki Sato, Osamu Okamoto, Makoto Jitsuoka, Keita Nagai, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Takehiro Fukami
  • Publication number: 20050288213
    Abstract: The present invention relates to compositions comprising a NPY5 antagonist of formula I or II and an anti-obesity agent, useful for the treatment and prevention of diabetes, obesity and obesity-related disorders. The present invention further relates to methods of treating or preventing obesity and obesity-related disorder in a subject in need thereof by administering a composition of the present invention. The present invention further provides for pharmaceutical compositions, medicaments, and kits useful in carrying out these methods.
    Type: Application
    Filed: July 14, 2003
    Publication date: December 29, 2005
    Inventors: Douglas MacNeil, James McIntyre, Leonardus Van Der Ploeg, Akane Ishihara
  • Publication number: 20050222161
    Abstract: 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: Application
    Filed: July 29, 2003
    Publication date: October 6, 2005
    Applicant: BANYU PHARMACEUTICAL CO., LTD
    Inventors: Minoru Moriya, Akio Kanatani, Hisashi Iwaasa, Akane Ishihara, Takehiro Fukami
  • Publication number: 20050032820
    Abstract: A Compound represented by the general formula (I): wherein AR1 represents an aryl or heteroaryl which may be substituted, the substituent being selected from the group consisting of hydroxy, halogen, nitro, lower alkyl, halo(lower)alkyl, hydroxy(lower)alkyl, cyclo(lower)alkyl, lower alkenyl, lower alkoxy, halo(lower)alkoxy, lower alkylthio, carboxyl, lower alkanoyl, lower alkoxycarbonyl, lower alkylene optionally substituted with oxo, and a group represented by the formula —Q—Ar2; Ar2represents an aryl or heteroaryl which may be substituted, the substituent being selected from the group consisting of halogen, cyano, lower alkyl, halo(lower)alkyl, hydroxy(lower)alkyl, hydroxy, lower alkoxy, halo(lower)alkoxy, lower alkylamino, di-lower alkylamino, lower alkanoyl and aryl; n represents 0 or 1; Q represents a single bond or carbonyl; T, U, V and W each independently represent a nitrogen atom or a methine group which may have a substituent selected from the group consisting of halogen, lower alkyl, hydrox
    Type: Application
    Filed: August 23, 2004
    Publication date: February 10, 2005
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh, Masato Chiba
  • Patent number: 6803372
    Abstract: Compounds of the general formula (I): wherein Ar1 represents optionally substituted aryl or heteroaryl; n represents 0 or 1; T, U, V, and W each independently represent nitrogen atom or optionally substituted methine group, where at least two of them represent the said methine group; X represents methine or hydroxy substituted methine; Y represents an optionally substituted imino or oxygen atom are described and claimed. These novel spiro compounds are useful as neuropeptide Y receptor antagonists and as agents for the treatment of various kinds of cardiovascular disorders, central nervous system disorders, metabolic diseases and the like.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: October 12, 2004
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh
  • Patent number: 6723847
    Abstract: The present invention is directed to novel spiro compounds useful as neuropeptide Y receptor antagonists.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: April 20, 2004
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh
  • Publication number: 20030220499
    Abstract: Compounds of the general formula (I): 1
    Type: Application
    Filed: June 4, 2003
    Publication date: November 27, 2003
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh
  • Patent number: 6649624
    Abstract: A method for treating a central nervous system disorder, which involves administering to a patient in need a therapeutically effective amount of a compound of formula (I): wherein Ar1 represents an aryl or heteroaryl which may be substituted, the substituent being selected from the group consisting of halogen, nitro, lower alkyl, halo(lower) alkyl, hydroxy(lower) alkyl, cyclo(lower) alkyl, lower alkenyl, lower alkoxy, halo(lower) alkoxy, lower alkylthio, carboxyl, lower alkanoyl, lower alkoxycarbonyl, lower alkylene optionally substituted with oxo, and a group represented by the formula —Q—Ar2; Ar2 represents an aryl or heteroaryl which may be substituted, the substituent being selected from the group consisting of halogen, cyano, lower alkyl, halo(lower) alkyl, hydroxy(lower) alkyl, hydroxy, lower alkoxy, halo(lower) alkoxy, lower alkylamino, di-lower alkylamino, lower alkanoyl and aryl: n represents 0 or 1; Q represents a single bond or carbonyl; T, U, V and W each independ
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh
  • Publication number: 20030158418
    Abstract: Compounds represented by the general formula (I): 1
    Type: Application
    Filed: September 25, 2002
    Publication date: August 21, 2003
    Inventors: Nagaaki Sato, Osamu Okamoto, Makoto Jitsuoka, Keita Nagai, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Takehiro Fukami
  • Publication number: 20030055251
    Abstract: Compounds of the general formula (I): 1
    Type: Application
    Filed: August 23, 2002
    Publication date: March 20, 2003
    Inventors: Takehiro Fukami, Akio Kanatani, Akane Ishihara, Yasuyuki Ishii, Toshiyuki Takahashi, Yuji Haga, Toshihiro Sakamoto, Takahiro Itoh