Patents by Inventor Toshihide Nishibata

Toshihide Nishibata 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: 20140303178
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 9, 2014
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Patent number: 8791125
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: July 29, 2014
    Assignee: MSD K.K.
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Publication number: 20120157342
    Abstract: The present invention provides the identification of biomarker gene sets whose expression levels are useful for predicting a patient's response to a therapeutically effective dose of a Wee1 inhibitor as well the ability to predict said response prior to dosing with the Wee1 inhibitor. Additional uses are also disclosed in the specification.
    Type: Application
    Filed: August 26, 2010
    Publication date: June 21, 2012
    Inventors: Shinji Mizuarai, Hiraku Itadani, Kazunori Yamanaka, Toshihide Nishibata, Tsuyoshi Arai, Hiroshi Hirai, Hidehito Kotani
  • Publication number: 20110189130
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Application
    Filed: March 22, 2011
    Publication date: August 4, 2011
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Patent number: 7935708
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: May 3, 2011
    Assignee: MSD K.K.
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Patent number: 7834019
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 16, 2010
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Publication number: 20100063024
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Application
    Filed: April 25, 2007
    Publication date: March 11, 2010
    Inventors: Toshihiro Sakamoto, Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
  • Publication number: 20070254892
    Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 1, 2007
    Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata