Patents by Inventor Keizo Koya

Keizo Koya 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: 20180087081
    Abstract: Fusion proteins comprising a protein expression enhancing polypeptide linked to a target protein binding domain and nucleic acid molecules encoding such fusion proteins are described for use in enhancing expression and/or location of a targeted protein of interest, for restoring lost functions in cells, and for treating disease. Additional fusion proteins comprising a target protein of interest modified with a fusion partner comprising a protein expression enhancing polypeptide are also disclosed.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 29, 2018
    Inventors: Akinori HISHIYA, Keizo KOYA, Luca RASTELLI
  • Patent number: 9758807
    Abstract: Fusion proteins comprising a protein expression enhancing polypeptide linked to a target protein binding domain and nucleic acid molecules encoding such fusion proteins are described for use in enhancing expression and/or location of a targeted protein of interest, for restoring lost functions in cells, and for treating disease. Additional fusion proteins comprising a target protein of interest modified with a fusion partner comprising a protein expression enhancing polypeptide are also disclosed.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: September 12, 2017
    Assignee: SOLA Biosciences, LLC
    Inventors: Akinori Hishiya, Keizo Koya, Luca Rastelli
  • Publication number: 20150366885
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Application
    Filed: August 27, 2015
    Publication date: December 24, 2015
    Inventors: Weiwen Ying, Lijun Sun, Keizo Koya, Dinesh U. Chimmanamada, Shijie Zhang, Teresa Kowalczyk-Przewloka, Hao Li
  • Publication number: 20150344420
    Abstract: Disclosed is a compound represented by the Structural Formula (I): Y is a covalent bond, a phenylene group or a substituted or unsubstituted straight chained hydrocarbyl group. In addition, Y, taken together with both >C?Z groups to which it is bonded, is a substituted or unsubstituted aromatic group. Preferably, Y is a covalent bond or —C(R7R8)—. R1 and R2 are independently an aryl group or a substituted aryl group, R3 and R4 are independently —H, an aliphatic group, a substituted aliphatic group, an aryl group or a substituted aryl group. R5-R6 are independently —H, an aliphatic group, a substituted aliphatic group, an aryl group or a substituted aryl group. R7 and R8 are each independently —H, an aliphatic or substituted aliphatic group, or R7 is —H and R8 is a substituted or unsubstituted aryl group, or, R7 and R8, taken together, are a C2-C6 substituted or unsubstituted alkylene group. Z is ?O or ?S.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 3, 2015
    Inventors: Keizo Koya, Lijun Sun, Shoujun Chen, Noriaki Tatsuta, Yaming Wu, Mitsumori Ono
  • Publication number: 20150299756
    Abstract: Fusion proteins comprising a protein expression enhancing polypeptide linked to a target protein binding domain and nucleic acid molecules encoding such fusion proteins are described for use in enhancing expression and/or location of a targeted protein of interest, for restoring lost functions in cells, and for treating disease. Additional fusion proteins comprising a target protein of interest modified with a fusion partner comprising a protein expression enhancing polypeptide are also disclosed.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 22, 2015
    Inventors: Akinori HISHIYA, Keizo KOYA, Luca RASTELLI
  • Patent number: 9156783
    Abstract: Disclosed are compounds of formulae (I), (III), (IV), (VII), (X), (XI), (XII), (XIII) and (XIV), wherein the variables are as defined in the claims, and methods of using compounds of the invention for treating a subject with a proliferative disorder, such as cancer, and methods for treating disorders responsive to Hsp70 induction and/or natural killer induction. Also disclosed are pharmaceutical compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: October 13, 2015
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Shoujun Chen, Keizo Koya, Zachary Demko, Lijun Sun
  • Patent number: 9120745
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 1, 2015
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Weiwen Ying, Lijun Sun, Keizo Koya, Dinesh U. Chimmanamada, Shijie Zhang, Teresa Kowalczyk-Przewloka, Hao Li
  • Patent number: 9107955
    Abstract: Disclosed is a compound represented by the Structural Formula (I): Y is a covalent bond, a phenylene group or a substituted or unsubstituted straight chained hydrocarbyl group. In addition, Y, taken together with both >C?Z groups to which it is bonded, is a substituted or unsubstituted aromatic group. Preferably, Y is a covalent bond or —C(R7R8)—. R1 and R2 are independently an aryl group or a substituted aryl group, R3 and R4 are independently —H, an aliphatic group, a substituted aliphatic group, an aryl group or a substituted aryl group. R5-R6 are independently —H, an aliphatic group, a substituted aliphatic group, an aryl group or a substituted aryl group. R7 and R8 are each independently —H, an aliphatic or substituted aliphatic group, or R7 is —H and R8 is a substituted or unsubstituted aryl group, or, R7 and R8, taken together, are a C2-C6 substituted or unsubstituted alkylene group. Z is ?O or ?S.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 18, 2015
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Keizo Koya, Lijun Sun, Shoujun Chen, Noriaki Tatsuta, Yaming Wu, Mitsunori Ono
  • Patent number: 9102601
    Abstract: Disclosed are compounds and pharmaceutical compositions that are useful for treating a subject with a proliferative disorder, such as cancer. The disclosed compounds and pharmaceutical compositions are also useful for treating disorders responsive to Hsp70 induction and/or natural killer induction.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 11, 2015
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Keizo Koya, Teresa Kowalczyk Przewloka, Shoujun Chen, Jun Jiang
  • Patent number: 9090603
    Abstract: The invention relates to compounds of structural formula (I): or a pharmaceutically acceptable salt, solvate, clathrate, and prodrug thereof, wherein Ra, Rb, and R2 are defined herein. These compounds inhibit tubulin polymerization and/or target vasculature and are useful for treating proliferative disorders, such as cancer.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 28, 2015
    Assignee: SYNTA PHARMACEUTICALS CORPORATION
    Inventors: Lijun Sun, Christopher Borella, Hao Li, Jun Jiang, Shoujun Chen, Keizo Koya, Takayo Inoue, Zhenjian Du, Kevin Foley, Yaming Wu, Mei Zhang, Weiwen Ying
  • Publication number: 20150183771
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Application
    Filed: December 31, 2014
    Publication date: July 2, 2015
    Inventors: Weiwen Ying, David James, Shijie Zhang, Junghyun Chae, Teresa Kowalczyk-Przewloka, Howard P. Ng, Hao Li, Zachary Demko, Dinesh U. Chimmanamada, Chi-Wan Lee, Zhenjian Du, Kevin Foley, Minghu Song, Lijun Sun, Keizo Koya, Dan Zhou, Shuzhen Qin
  • Publication number: 20150080386
    Abstract: Disclosed are compounds and pharmaceutical compositions that are useful for treating a subject with a proliferative disorder, such as cancer. The disclosed compounds and pharmaceutical compositions are also useful for treating disorders responsive to Hsp70 induction and/or natural killer induction.
    Type: Application
    Filed: July 21, 2014
    Publication date: March 19, 2015
    Inventors: Keizo Koya, Teresa Kowalczyk Przewloka, Shoujun Chen, Jun Jiang
  • Publication number: 20150025042
    Abstract: Disclosed are compounds of formulae (I), (III), (IV), (VII), (X), (XI), (XII), (XIII) and (XIV), wherein the variables are as defined in the claims, and methods of using compounds of the invention for treating a subject with a proliferative disorder, such as cancer, and methods for treating disorders responsive to Hsp70 induction and/or natural killer induction. Also disclosed are pharmaceutical compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: December 16, 2013
    Publication date: January 22, 2015
    Applicant: SYNTA PHARMACEUTICALS CORP.
    Inventors: Shoujun Chen, Keizo Koya, Zachary Demko, Lijun Sun
  • Patent number: 8927548
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Weiwen Ying, David James, Shijie Zhang, Junghyun Chae, Teresa Kowalczyk-Przewloka, Howard P. Ng, Hao Li, Zachary Demko, Dinesh U. Chimmanamada, Chi-wan Lee, Zhenjian Du, Kevin Foley, Minghu Song, Lijun Sun, Keizo Koya, Dan Zhou, Shuzhen Qin
  • Patent number: 8907131
    Abstract: Disclosed are compounds and methods of using compounds of the invention for treating a subject with a proliferative disorder, such as cancer, and methods for treating disorders responsive to Hsp70 induction and/or natural killer induction. Also, disclosed are pharmaceutical compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: December 9, 2014
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Keizo Koya, Weiwen Ying, Teresa Kowalczyk-Przewloka, Lijun Sun
  • Publication number: 20140296186
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Application
    Filed: May 23, 2014
    Publication date: October 2, 2014
    Inventors: Weiwen Ying, Lijun Sun, Keizo Koya, Dinesh U. Chimmanamada, Shijie Zhang, Teresa Kowalcyzk-Przewloka, Hao Li
  • Patent number: 8815945
    Abstract: Improved cancer treatments with bis[thiohydrazide amide] compounds such as elesclomol, in particular for identifying patient populations that would benefit from such treatments.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 26, 2014
    Inventors: Masazumi Nagai, Ronald K. Blackman, Patricia E. Rao, Yumiko Wada, Keizo Koya
  • Patent number: 8785451
    Abstract: Disclosed are compounds of formula (IA), formula (IV) or formula (V), wherein the variables are as defined herein, and pharmaceutical compositions containing them which are useful for treating a subject with a proliferative disorder, such as cancer. The disclosed compounds and pharmaceutical compositions are also useful for treating disorders responsive to Hsp70 induction and/or natural killer induction.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 22, 2014
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Keizo Koya, Lijun Sun, Shoujun Chen, Jun Jiang
  • Patent number: 8742133
    Abstract: The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: June 3, 2014
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Weiwen Ying, Lijun Sun, Keizo Koya, Dinesh U. Chimmanamada, Shijie Zhang, Teresa Kowalcyzk-Przewloka, Hao Li
  • Publication number: 20140045795
    Abstract: The invention relates to compounds of structural formula (I): or a pharmaceutically acceptable salt, solvate, clathrate, and prodrug thereof, wherein Ra, Rb, and R2 are defined herein. These compounds inhibit tubulin polymerization and/or target vasculature and are useful for treating proliferative disorders, such as cancer.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: SYNTA PHARMACEUTICALS CORPORATION
    Inventors: Lijun Sun, Christopher Borella, Hao Li, Jun Jiang, Shoujun Chen, Keizo Koya, Takayo Inoue, Zhenjian Du, Kevin Foley, Yaming Wu, Mei Zhang, Weiwen Ying