Patents by Inventor Toshinori Agatsuma

Toshinori Agatsuma 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: 20190359722
    Abstract: Provided is an antibody specific to EPHA2. A monoclonal antibody specifically binding to EPHA2, comprising a heavy chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 20 and a light chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 22, or a functional fragment of the monoclonal antibody specifically binding to EPHA2, and a monoclonal antibody specifically binding to EPHA2, comprising a heavy chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 15 and a light chain variable region consisting of the amino acid sequence as set forth in SEQ ID NO: 18, or a functional fragment of the monoclonal antibody specifically binding to EPHA2.
    Type: Application
    Filed: January 22, 2018
    Publication date: November 28, 2019
    Applicant: TOYO UNIVERSITY
    Inventors: Kazunori KATO, Toshinori AGATSUMA, Jun HASEGAWA
  • Publication number: 20190144559
    Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 16, 2019
    Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITY
    Inventors: Toshinori Agatsuma, Shu Takahashi, Jun Hasegawa, Daisuke Okajima, Hirofumi Hamada, Miki Yamaguchi
  • Patent number: 10227417
    Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 12, 2019
    Assignees: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITY
    Inventors: Toshinori Agatsuma, Shu Takahashi, Jun Hasegawa, Daisuke Okajima, Hirofumi Hamada, Miki Yamaguchi
  • Publication number: 20180094073
    Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITY
    Inventors: Toshinori AGATSUMA, Shu TAKAHASHI, Jun HASEGAWA, Daisuke OKAJIMA, Hirofumi HAMADA, Miki YAMAGUCHI
  • Patent number: 9850312
    Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 26, 2017
    Assignees: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITY
    Inventors: Toshinori Agatsuma, Shu Takahashi, Jun Hasegawa, Daisuke Okajima, Hirofumi Hamada, Miki Yamaguchi
  • Patent number: 9714298
    Abstract: The present invention provides an antibody which binds to a fibroblast growth factor receptor.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: July 25, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Toshiaki Ohtsuka, Chigusa Yoshimura, Toshinori Agatsuma, Atsushi Urano, Takako Kimura, Yumi Matsui, Tatsuji Matsuoka, Jun Hasegawa, Yasuki Kamai, Reimi Kawaida
  • Patent number: 9481733
    Abstract: The present invention provides an antibody which binds to a fibroblast growth factor receptor.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 1, 2016
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Toshiaki Ohtsuka, Chigusa Yoshimura, Toshinori Agatsuma, Atsushi Urano, Takako Kimura, Yumi Matsui, Tatsuji Matsuoka, Jun Hasegawa, Yasuki Kamai, Reimi Kawaida
  • Publication number: 20160297890
    Abstract: It is intended to provide an antitumor drug having an excellent therapeutic effect, which is excellent in terms of antitumor effect and safety. There is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-TROP2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH—(CH2)n1-La-(CH2)n2-C(?O)— wherein the anti-TROP2 antibody is connected to the terminal of L1, and the antitumor compound is connected to the carbonyl group of the —(CH2)n2-C(?O)— moiety with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 13, 2016
    Applicants: DAIICHI SANKYO COMPANY, LIMITED, SAPPORO MEDICAL UNIVERSITY
    Inventors: Toshinori AGATSUMA, Shu TAKAHASHI, Jun HASEGAWA, Daisuke OKAJIMA, Hirofumi HAMADA, Miki YAMAGUCHI
  • Patent number: 9403909
    Abstract: The present disclosure provides recombinant antigen-binding regions and antibodies and functional fragments containing such antigen-binding regions that are specific for MST1R, which plays an integral role in various disorders or conditions, such as cancer. These antibodies, accordingly, can be used to treat these and other disorders and conditions. Antibodies of the disclosure also can be used in the diagnostics field, as well as for further investigating the role of MST1R in the progression of disorders associated with tumors. The disclosure also provides nucleic acid sequences encoding the foregoing antibodies, vectors containing the same, pharmaceutical compositions and kits with instructions for use.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: August 2, 2016
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Reimi Kawaida, Toshiaki Ohtsuka, Toshinori Agatsuma, Philip Rodley, Sandra Miller, Ulrike Schubert
  • Publication number: 20160031987
    Abstract: The present invention provides an antibody which recognizes an epitope recognized by an antibody produced by a hybridoma SH348-1 (FERM BP-10836) or a hybridoma SH357-1 (FERM BP-10837), an antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, an antibody obtained by humanizing the antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, a pharmaceutical agent comprising the antibody as an active ingredient, etc.
    Type: Application
    Filed: October 5, 2015
    Publication date: February 4, 2016
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Jun Hasegawa, Toshiaki Ohtsuka, Atsushi Urano, Junko Yamaguchi, Toshinori Agatsuma, Kaori Nakahara, Takeshi Takizawa
  • Publication number: 20160009820
    Abstract: The present invention provides an antibody which binds to a fibroblast growth factor receptor.
    Type: Application
    Filed: July 6, 2015
    Publication date: January 14, 2016
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Toshiaki Ohtsuka, Chigusa Yoshimura, Toshinori Agatsuma, Atsushi Urano, Takako Kimura, Yumi Matsui, Tatsuji Matsuoka, Jun Hasegawa, Yasuki Kamai, Reimi Kawaida
  • Patent number: 9150657
    Abstract: The present invention provides an antibody which recognizes an epitope recognized by an antibody produced by a hybridoma SH348-1 (FERM BP-10836) or a hybridoma SH357-1 (FERM BP-10837), an antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, an antibody obtained by humanizing the antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, a pharmaceutical agent comprising the antibody as an active ingredient, etc.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: October 6, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Jun Hasegawa, Toshiaki Ohtsuka, Atsushi Urano, Junko Yamaguchi, Toshinori Agatsuma, Kaori Nakahara, Takeshi Takizawa
  • Patent number: 9114131
    Abstract: An isolated antibody capable of binding Siglec-15 which inhibits osteoclast formation and/or osteoclastic bone resorption, or a functional fragment thereof. The heavy chain of the antibody comprises a CDRH1 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 106, a CDRH2 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 107, and a CDRH3 comprising a sequence having at least 80% sequence identity to one of SEQ ID NOS: 35, 45, 55, 65 or 80. The light chain of the antibody comprises a CDRL1 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 73 or 83, a CDRL2 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 108, and a CDRL3 comprising a sequence having at least 80% sequence identity to one of SEQ ID NOS: 40, 50, 60, 70, 90, 100 or 109.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: August 25, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Ichiro Watanabe, Yoshiharu Hiruma, Eisuke Tsuda, Tatsuji Matsuoka, Toshiaki Ohtsuka, Tohru Takahashi, Toshinori Agatsuma, Sandra Miller, Robert Mühlbacher, Kathrin-Ladetzki Baehs, Steffen Runz, Ulrike Schubert, Ingrid Schuster, Dirk Ponsel
  • Publication number: 20150125454
    Abstract: The present invention provides an antibody which binds to a fibroblast growth factor receptor.
    Type: Application
    Filed: April 9, 2013
    Publication date: May 7, 2015
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Toshiaki Ohtsuka, Chigusa Yoshimura, Toshinori Agatsuma, Atsushi Urano, Takako Kimura, Yumi Matsui, Tatsuji Matsuoka, Jun Hasegawa, Yasuki Kamai, Reimi Kawaida
  • Publication number: 20140212439
    Abstract: The present invention provides an antibody which recognizes an epitope recognized by an antibody produced by a hybridoma SH348-1 (FERM BP-10836) or a hybridoma SH357-1 (FERM BP-10837), an antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, an antibody obtained by humanizing the antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, a pharmaceutical agent comprising the antibody as an active ingredient, etc.
    Type: Application
    Filed: May 22, 2013
    Publication date: July 31, 2014
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Jun Hasegawa, Toshiaki Ohtsuka, Atsushi Urano, Junko Yamaguchi, Toshinori Agatsuma, Kaori Nakahara, Takeshi Takizawa
  • Publication number: 20130280276
    Abstract: An isolated antibody capable of binding Siglec-15 which inhibits osteoclast formation and/or osteoclastic bone resorption, or a functional fragment thereof. The heavy chain of the antibody comprises a CDRH1 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 106, a CDRH2 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 107, and a CDRH3 comprising a sequence having at least 80% sequence identity to one of SEQ ID NOS: 35, 45, 55, 65 or 80. The light chain of the antibody comprises a CDRL1 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 73 or 83, a CDRL2 comprising a sequence having at least 80% sequence identity to SEQ ID NO: 108, and a CDRL3 comprising a sequence having at least 80% sequence identity to one of SEQ ID NOS: 40, 50, 60, 70, 90, 100 or 109.
    Type: Application
    Filed: October 4, 2011
    Publication date: October 24, 2013
    Inventors: Ichiro Watanabe, Yoshiharu Hiruma, Eisuke Tsuda, Tatsuji Matsuoka, Toshiaki Ohtsuka, Tohru Takahashi, Toshinori Agatsuma, Sandra Miller, Robert Mühlbacher, Kathrin-Ladetzki Baehs, Steffen Runz, Ulrike Schubert, Ingrid Schuster, Dirk Ponsel
  • Patent number: 8449882
    Abstract: Problem to Be Solved It is intended to provide an antibody having an inhibitory activity against cell malignant transformation and/or tumor cell growth, etc. Solution The present invention provides an antibody which recognizes an epitope recognized by an antibody produced by a hybridoma SH348-1 (FERM BP-10836) or a hybridoma SH357-1 (FERM BP-10837), an antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, an antibody obtained by humanizing the antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, a pharmaceutical agent comprising the antibody as an active ingredient, etc.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: May 28, 2013
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Jun Hasegawa, Toshiaki Ohtsuka, Atsushi Urano, Junko Yamaguchi, Toshinori Agatsuma, Kaori Nakahara, Takeshi Takizawa
  • Publication number: 20120034215
    Abstract: The present disclosure provides recombinant antigen-binding regions and antibodies and functional fragments containing such antigen-binding regions that are specific for MST1R, which plays an integral role in various disorders or conditions, such as cancer. These antibodies, accordingly, can be used to treat these and other disorders and conditions. Antibodies of the disclosure also can be used in the diagnostics field, as well as for further investigating the role of MST1R in the progression of disorders associated with tumors. The disclosure also provides nucleic acid sequences encoding the foregoing antibodies, vectors containing the same, pharmaceutical compositions and kits with instructions for use.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 9, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Reimi Kawaida, Toshiaki Ohtsuka, Toshinori Agatsuma, Philip Rodley, Sandra Miller, Ulrike Schubert
  • Patent number: 7855056
    Abstract: The present invention relates to a method of detecting cancer by use of an oncogene, a method of screening for an active compound useful to treat and/or prevent cancer, and a pharmaceutical composition for treatment and/or prevention of cancer. More specifically, the present invention provides a method of detecting cancer based on the expression of the human oculospanin gene as a marker and a pharmaceutical composition containing an antibody capable of specifically recognizing human oculospanin and having cytotoxic activity against cancer cells.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: December 21, 2010
    Assignee: Sankyo Co., Ltd.
    Inventors: Kimihisa Ichikawa, Shu Takahashi, Toshinori Agatsuma, Keisuke Fukuchi, Takehiro Hirai
  • Publication number: 20100183618
    Abstract: Problem to Be Solved It is intended to provide an antibody having an inhibitory activity against cell malignant transformation and/or tumor cell growth, etc. Solution The present invention provides an antibody which recognizes an epitope recognized by an antibody produced by a hybridoma SH348-1 (FERM BP-10836) or a hybridoma SH357-1 (FERM BP-10837), an antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, an antibody obtained by humanizing the antibody produced by the hybridoma SH348-1 or the hybridoma SH357-1, a pharmaceutical agent comprising the antibody as an active ingredient, etc.
    Type: Application
    Filed: February 25, 2010
    Publication date: July 22, 2010
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Jun Hasegawa, Toshiaki Ohtsuka, Atsushi Urano, Junko Yamaguchi, Toshinori Agatsuma, Kaori Nakahara, Takeshi Takizawa