Patents by Inventor Yoshimasa Sakamoto

Yoshimasa Sakamoto 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).

  • Patent number: 10513561
    Abstract: The present invention provides an anti-Myl9 antibody or a Myl9 binding fragment thereof that binds to Myl9 and may inhibit the interaction between Myl9 and CD69 in humans, as well as a pharmaceutical composition comprising the same. A mouse anti-human/mouse Myl9 monoclonal antibody having binding affinity against Myl9 was obtained, and the sequence for the complementarity determining region (CDR) of said mouse anti-human/mouse Myl9 monoclonal antibody was identified. Accordingly, a humanized antibody comprising the CDR sequence of said mouse anti-human/mouse Myl9 monoclonal antibody in the variable region of heavy and light chains was produced.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: December 24, 2019
    Assignees: National University Corporation Chiba University, Eisai R&D Management Co., Ltd.
    Inventors: Toshinori Nakayama, Motoko Kimura, Koji Hayashizaki, Toshifumi Hirayama, Jungo Kakuta, Yoshimasa Sakamoto, Ryu Gejima, Daisuke Tokita, Kenzo Muramoto, Toshio Imai
  • Publication number: 20190002588
    Abstract: The present invention provides an anti-Myl9 antibody or a Myl9 binding fragment thereof that binds to Myl9 and may inhibit the interaction between Myl9 and CD69 in humans, as well as a pharmaceutical composition comprising the same. A mouse anti-human/mouse Myl9 monoclonal antibody having binding affinity against Myl9 was obtained, and the sequence for the complementarity determining region (CDR) of said mouse anti-human/mouse Myl9 monoclonal antibody was identified. Accordingly, a humanized antibody comprising the CDR sequence of said mouse anti-human/mouse Myl9 monoclonal antibody in the variable region of heavy and light chains was produced.
    Type: Application
    Filed: January 11, 2017
    Publication date: January 3, 2019
    Inventors: Toshinori Nakayama, Motoko Kimura, Koji Hayashizaki, Toshifumi Hirayama, Jungo Kakuta, Yoshimasa Sakamoto, Ryu Gejima, Daisuke Tokita, Kenzo Muramoto, Toshio Imai
  • Patent number: 9994816
    Abstract: The present invention relates to polynucleotide probes and antibodies for detecting Lrp4/Corin dopaminergic neuron progenitor cell markers, which enable the efficient separation of dopaminergic neuron progenitor cells; and methods for selecting the progenitor cells by the use thereof.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: June 12, 2018
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Yuichi Ono, Toshio Imai, Yasuko Nakagawa
  • Patent number: 9969812
    Abstract: The present invention provides an anti-human Notch4 antibody or a Notch4 binding fragment thereof that may have neutralizing activity against human Notch4, as well as a pharmaceutical composition comprising the same as the active ingredient. The present inventors obtained a mouse anti-human Notch4 antibody that has high neutralizing activity and binding affinity towards human Notch4 and determined the complementarity determining region (CDR) sequence of the mouse anti-human Notch4 antibody. This enabled the production of a humanized antibody comprising the variable region of heavy and light chains as well as the CDR sequence of the mouse anti-human Notch4 antibody.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: May 15, 2018
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Yusuke Adachi, Junji Matsui, Yu Kato, Yoichi Ozawa, Takanori Abe, Ken Ito, Yuya Nakazawa, Sho Tachino, Katsuhisa Suzuki, Kishan Agarwala, Kana Hoshino, Masahiko Katayama
  • Patent number: 9961278
    Abstract: The present disclosure relates to a solid-state image-capturing element and electronic device capable of improving the linearity of illuminance values. The dynamic-range expander 118 expands dynamic range of a pixel value for each pixel based on the pixel value having different exposure times of a plurality of pixels. The integrator 119 integrates pixel values having the dynamic range expanded by the dynamic-range expander 118 and generates an illuminance value. The present disclosure is applicable to complementary metal-oxide semiconductor (CMOS) image sensor or the like used in, for example, an illuminometer.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: May 1, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Yusuke Ikeda, Hideki Shoyama, Yoshimasa Sakamoto, Yuuichi Udou, Oichi Kumagai
  • Patent number: 9809647
    Abstract: The present invention relates to novel humanized, chimeric and murine antibodies that have binding specificity for the human CC chemokine ligand 20 (CCL20). The present invention further relates to heavy chains and light chains of said antibodies. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a heavy chain and/or a light chain of said antibodies, and to a method of preparing said antibodies. The anti-CCL20 antibodies of the invention can be used in therapeutic applications to treat, for example, inflammatory and autoimmune disorders and cancer.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 7, 2017
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Toshio Imai, James Bradford Kline, Tetsu Kawano, Luigi Grasso, Yoshimasa Sakamoto, Jared Spidel, Miyuki Nishimura, Kenzo Muramoto, Tatsuo Horizoe
  • Publication number: 20170096493
    Abstract: The present invention provides an anti-human Notch4 antibody or a Notch4 binding fragment thereof that may have neutralizing activity against human Notch4, as well as a pharmaceutical composition comprising the same as the active ingredient. The present inventors obtained a mouse anti-human Notch4 antibody that has high neutralizing activity and binding affinity towards human Notch4 and determined the complementarity determining region (CDR) sequence of said mouse anti-human Notch4 antibody. This enabled the production of a humanized antibody comprising the variable region of heavy and light chains as well as the CDR sequence of said mouse anti-human Notch4 antibody.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Yusuke Adachi, Junji Matsui, Yu Kato, Yoichi Ozawa, Takanori Abe, Ken Ito, Yuya Nakazawa, Sho Tachino, Katsuhisa Suzuki, Kishan Agarwala, Kana Hoshino, Masahiko Katayama
  • Patent number: 9527921
    Abstract: The present invention provides an anti-human Notch4 antibody or a Notch4 binding fragment thereof that may have neutralizing activity against human Notch4, as well as a pharmaceutical composition comprising the same as the active ingredient. The present inventors obtained a mouse anti-human Notch4 antibody that has high neutralizing activity and binding affinity towards human Notch4 and determined the complementarity determining region (CDR) sequence of the mouse anti-human Notch4 antibody. This enabled the production of a humanized antibody comprising the variable region of heavy and light chains as well as the CDR sequence of the mouse anti-human Notch4 antibody.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 27, 2016
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Yusuke Adachi, Junji Matsui, Yu Kato, Yoichi Ozawa, Takanori Abe, Ken Ito, Yuya Nakazawa, Sho Tachino, Katsuhisa Suzuki, Kishan Agarwala, Kana Hoshino, Masahiko Katayama
  • Publication number: 20160347858
    Abstract: The present invention provides an anti-human Notch4 antibody or a Notch4 binding fragment thereof that may have neutralizing activity against human Notch4, as well as a pharmaceutical composition comprising the same as the active ingredient. The present inventors obtained a mouse anti-human Notch4 antibody that has high neutralizing activity and binding affinity towards human Notch4 and determined the complementarity determining region (CDR) sequence of said mouse anti-human Notch4 antibody. This enabled the production of a humanized antibody comprising the variable region of heavy and light chains as well as the CDR sequence of said mouse anti-human Notch4 antibody.
    Type: Application
    Filed: April 14, 2016
    Publication date: December 1, 2016
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Yusuke Adachi, Junji Matsui, Yu Kato, Yoichi Ozawa, Takanori Abe, Ken Ito, Yuya Nakazawa, Sho Tachino, Katsuhisa Suzuki, Kishan Agarwala, Kana Hoshino
  • Publication number: 20160269659
    Abstract: The present disclosure relates to a solid-state image-capturing element and electronic device capable of improving the linearity of illuminance values. The dynamic-range expander 118 expands dynamic range of a pixel value for each pixel based on the pixel value having different exposure times of a plurality of pixels. The integrator 119 integrates pixel values having the dynamic range expanded by the dynamic-range expander 118 and generates an illuminance value. The present disclosure is applicable to complementary metal-oxide semiconductor (CMOS) image sensor or the like used in, for example, an illuminometer.
    Type: Application
    Filed: October 10, 2014
    Publication date: September 15, 2016
    Applicant: Sony Corporation
    Inventors: Yusuke Ikeda, Hideki Shoyama, Yoshimasa Sakamoto, Yuuichi Udou, Oichi Kumagai
  • Patent number: 9371389
    Abstract: An object of the present invention is to provide a monoclonal antibody binding to human XCR1, wherein the antibody binds to linear or discontinuous epitopes which comprise at least three amino acids selected from the group consisting of the 8th, 11th, 12th, 13th, 14th, 16th, 17th, 22nd, 23rd, 176th, and 177th amino acids in the amino acid sequence of SEQ ID NO: 91.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: June 21, 2016
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yoshimasa Sakamoto, Miyuki Nishimura, Tetsu Kawano, Yukihisa Sawa, Toshio Imai
  • Publication number: 20160046707
    Abstract: The present invention relates to novel humanized, chimeric and murine antibodies that have binding specificity for the human CC chemokine ligand 20 (CCL20). The present invention further relates to heavy chains and light chains of said antibodies. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a heavy chain and/or a light chain of said antibodies, and to a method of preparing said antibodies. The anti-CCL20 antibodies of the invention can be used in therapeutic applications to treat, for example, inflammatory and autoimmune disorders and cancer.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 18, 2016
    Inventors: Toshio Imai, James Bradford Kline, Tetsu Kawano, Luigi Grasso, Yoshimasa Sakamoto, Jared Spidel, Miyuki Nishimura, Kenzo Muramoto, Tatsuo Horizoe
  • Publication number: 20150299654
    Abstract: The present invention relates to polynucleotide probes and antibodies for detecting Lrp4/Corin dopaminergic neuron progenitor cell markers, which enable the efficient separation of dopaminergic neuron progenitor cells; and methods for selecting the progenitor cells by the use thereof.
    Type: Application
    Filed: May 4, 2015
    Publication date: October 22, 2015
    Inventors: Yoshimasa Sakamoto, Yuichi Ono, Toshio Imai, Yasuko Nakagawa
  • Patent number: 9133273
    Abstract: The present invention relates to novel humanized, chimeric and murine antibodies that have binding specificity for the human CC chemokine ligand 20 (CCL20). The present invention further relates to heavy chains and light chains of said antibodies. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a heavy chain and/or a light chain of said antibodies, and to a method of preparing said antibodies. The anti-CCL20 antibodies of the invention can be used in therapeutic applications to treat, for example, inflammatory and autoimmune disorders and cancer.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: September 15, 2015
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Toshio Imai, James Bradford Kline, Tetsu Kawano, Luigi Grasso, Yoshimasa Sakamoto, Jared Spidel, Miyuki Nishimura, Kenzo Muramoto, Tatsuo Horizoe
  • Patent number: 8932592
    Abstract: The present invention features compositions and methods related to humanized antibodies and FKN-binding fragments thereof that bind fractalkine.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 13, 2015
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Miyuki Nishimura, Yoshimasa Sakamoto, Tetsu Kawano, Toshio Imai
  • Publication number: 20140193421
    Abstract: An object of the present invention is to provide a monoclonal antibody binding to human XCR1, wherein the antibody binds to linear or discontinuous epitopes which comprise at least three amino acids selected from the group consisting of the 8th, 11th, 12th, 13th, 14th, 16th, 17th, 22nd, 23rd, 176th, and 177th amino acids in the amino acid sequence of SEQ ID NO: 91.
    Type: Application
    Filed: August 30, 2012
    Publication date: July 10, 2014
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Yoshimasa Sakamoto, Miyuki Nishimura, Tetsu Kawano, Yukihisa Sawa, Toshio Imai
  • Publication number: 20140045215
    Abstract: The present invention relates to novel humanized, chimeric and murine antibodies that have binding specificity for the human CC chemokine ligand 20 (CCL20). The present invention further relates to heavy chains and light chains of said antibodies. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a heavy chain and/or a light chain of said antibodies, and to a method of preparing said antibodies. The anti-CCL20 antibodies of the invention can be used in therapeutic applications to treat, for example, inflammatory and autoimmune disorders and cancer.
    Type: Application
    Filed: June 21, 2013
    Publication date: February 13, 2014
    Inventors: Toshio Imai, Brad Kline, Tetsu Kawano, Luigi Grasso, Yoshimasa Sakamoto, Jared Spidel, Miyuki Nishimura, Kenzo Muramoto, Tatsuo Horizoe
  • Patent number: 8604173
    Abstract: An object of the present invention is to provide a probe, a primer, a primer set and an antibody for use in the detection or selection of a dopaminergic neuron progenitor cell. The present invention provides a probe, a primer and a primer set for use in the detection or selection of a mesencephalon dopaminergic neuron progenitor cell, and preferably a dopaminergic neuron proliferative progenitor cell, which can hybridize with a nucleotide sequence of a 187A5 gene, or a complementary sequence thereto, and an antibody for use in the detection or selection of a mesencephalon dopaminergic neuron progenitor cell, and preferably a dopaminergic neuron progenitor cell, which is capable of binding to a 187A5 protein.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 10, 2013
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Yuichi Ono, Yoshimasa Sakamoto
  • Patent number: 8491901
    Abstract: The present invention relates to novel humanized, chimeric and murine antibodies that have binding specificity for the human CC chemokine ligand 20 (CCL20). The present invention further relates to heavy chains and light chains of said antibodies. The invention also relates to isolated nucleic acids, recombinant vectors and host cells that comprise a sequence which encodes a heavy chain and/or a light chain of said antibodies, and to a method of preparing said antibodies. The anti-CCL20 antibodies of the invention can be used in therapeutic applications to treat, for example, inflammatory and autoimmune disorders and cancer.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: July 23, 2013
    Inventors: Toshio Imai, Brad Kline, Tetsu Kawano, Luigi Grasso, Yoshimasa Sakamoto, Jared Spidel, Miyuki Nishimura, Kenzo Muramoto, Tatsuo Horizoe
  • Publication number: 20120252021
    Abstract: An object of the present invention is to provide a probe, a primer, a primer set and an antibody for use in the detection or selection of a dopaminergic neuron progenitor cell. The present invention provides a probe, a primer and a primer set for use in the detection or selection of a mesencephalon dopaminergic neuron progenitor cell, and preferably a dopaminergic neuron proliferative progenitor cell, which can hybridize with a nucleotide sequence of a 187A5 gene, or a complementary sequence thereto, and an antibody for use in the detection or selection of a mesencephalon dopaminergic neuron progenitor cell, and preferably a dopaminergic neuron progenitor cell, which is capable of binding to a 187A5 protein.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 4, 2012
    Applicant: EISAI R&D MANAGMENET CO., LTD.
    Inventors: Yuichi Ono, Yoshimasa Sakamoto