Patents by Inventor Aki Nakatani

Aki Nakatani 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: 20230357386
    Abstract: Provided is an anti-EphA4 antibody capable of binding to EphA4 and enhancing the cleavage of EphA4, and a pharmaceutical composition comprising the antibody as an active ingredient. The anti-EphA4 antibody comprises a heavy chain comprising a heavy chain CDR1 of SEQ ID NO: 30; a heavy chain CDR2 of SEQ ID NO: 31; and a heavy chain CDR3 of SEQ ID NO: 32; and a light chain comprising a light chain CDR1 of SEQ ID NO: 33; a light chain CDR2 of SEQ ID NO: 34; and a light chain CDR3 of SEQ ID NO: 35, or a heavy chain comprising a heavy chain CDR1 of SEQ ID NO: 42; a heavy chain CDR2 of SEQ ID NO: 31; and a heavy chain CDR3 of SEQ ID NO: 43; and a light chain comprising a light chain CDR1 of SEQ ID NO: 44; a light chain CDR2 of SEQ ID NO: 34; and a light chain CDR3 of SEQ ID NO: 35.
    Type: Application
    Filed: December 22, 2021
    Publication date: November 9, 2023
    Inventors: Tomomi KAWAKATSU, Akio YAMADA, Aki NAKATANI, Eiji INOUE
  • Patent number: 11136400
    Abstract: Provided is an anti-EphA4 antibody that can bind to EphA4 and enhance the cleavage of EphA4, as well as a pharmaceutical composition comprising the antibody as the active ingredient. A mouse anti-EphA4 antibody that has binding affinity towards EphA4 and can enhance the cleavage of EphA4 was obtained, and the sequence of the complementarity-determining region (CDR) of the mouse anti-EphA4 antibody was identified. Subsequently, the anti-EphA4 antibody of interest was obtained by producing a humanized antibody of the mouse anti-EphA4 antibody.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: October 5, 2021
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Eiji Inoue, Akio Yamada, Tomomi Kawakatsu, Toshio Imai, Maki Deguchi, Aki Nakatani
  • Patent number: 11034769
    Abstract: Provided is an anti-EphA4 antibody that can bind to EphA4 and enhance the cleavage of EphA4, as well as a pharmaceutical composition comprising the antibody as the active ingredient. A mouse anti-EphA4 antibody that has binding affinity towards EphA4 and can enhance the cleavage of EphA4 was obtained, and the sequence of the complementarity-determining region (CDR) of the mouse anti-EphA4 antibody was identified. Subsequently, the anti-EphA4 antibody of interest was obtained by producing a humanized antibody of the mouse anti-EphA4 antibody.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: June 15, 2021
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Eiji Inoue, Akio Yamada, Tomomi Kawakatsu, Toshio Imai, Maki Deguchi, Aki Nakatani
  • Publication number: 20210171644
    Abstract: Provided is an anti-EphA4 antibody that can bind to EphA4 and enhance the cleavage of EphA4, as well as a pharmaceutical composition comprising the antibody as the active ingredient. A mouse anti-EphA4 antibody that has binding affinity towards EphA4 and can enhance the cleavage of EphA4 was obtained, and the sequence of the complementarity-determining region (CDR) of the mouse anti-EphA4 antibody was identified. Subsequently, the anti-EphA4 antibody of interest was obtained by producing a humanized antibody of the mouse anti-EphA4 antibody.
    Type: Application
    Filed: January 8, 2021
    Publication date: June 10, 2021
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Eiji INOUE, Akio YAMADA, Tomomi KAWAKATSU, Toshio IMAI, Maki DEGUCHI, Aki NAKATANI
  • Patent number: 10947313
    Abstract: Provided is an anti-EphA4 antibody that can bind to EphA4 and enhance the cleavage of EphA4, as well as a pharmaceutical composition comprising the antibody as the active ingredient. A mouse anti-EphA4 antibody that has binding affinity towards EphA4 and can enhance the cleavage of EphA4 was obtained, and the sequence of the complementarity-determining region (CDR) of the mouse anti-EphA4 antibody was identified. Subsequently, the anti-EphA4 antibody of interest was obtained by producing a humanized antibody of the mouse anti-EphA4 antibody.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 16, 2021
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Eiji Inoue, Akio Yamada, Tomomi Kawakatsu, Toshio Imai, Maki Deguchi, Aki Nakatani
  • Publication number: 20210002378
    Abstract: Provided is an anti-EphA4 antibody that can bind to EphA4 and enhance the cleavage of EphA4, as well as a pharmaceutical composition comprising the antibody as the active ingredient. A mouse anti-EphA4 antibody that has binding affinity towards EphA4 and can enhance the cleavage of EphA4 was obtained, and the sequence of the complementarity-determining region (CDR) of the mouse anti-EphA4 antibody was identified. Subsequently, the anti-EphA4 antibody of interest was obtained by producing a humanized antibody of the mouse anti-EphA4 antibody.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Inventors: Eiji INOUE, Akio YAMADA, Tomomi KAWAKATSU, Toshio IMAI, Maki DEGUCHI, Aki NAKATANI
  • Patent number: 10428140
    Abstract: It is intended to provide an anti-EphA4 antibody or an EphA4-binding fragment thereof which is capable of binding to EphA4 and inhibiting the binding between EphA4 and its ligand, and a pharmaceutical composition comprising the anti-EphA4 antibody or the EphA4-binding fragment thereof as an active ingredient. A mouse anti-EphA4 antibody having binding affinity for EphA4 was obtained, and the sequences of complementarity-determining regions (CDRs) of the mouse anti-EphA4 antibody were identified. This allowed for preparation of a humanized antibody comprising the CDR sequences of the mouse anti-EphA4 antibody in heavy chain variable region and light chain variable region.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: October 1, 2019
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ryota Taguchi, Toshio Imai, Eiji Inoue, Akio Yamada, Aki Nakatani, Toshifumi Hirayama, Yuichi Ono, Shunsuke Ito
  • Publication number: 20190077860
    Abstract: It is intended to provide an anti-EphA4 antibody or an EphA4-binding fragment thereof which is capable of binding to EphA4 and inhibiting the binding between EphA4 and its ligand, and a pharmaceutical composition comprising the anti-EphA4 antibody or the EphA4-binding fragment thereof as an active ingredient. A mouse anti-EphA4 antibody having binding affinity for EphA4 was obtained, and the sequences of complementarity-determining regions (CDRs) of the mouse anti-EphA4 antibody were identified. This allowed for preparation of a humanized antibody comprising the CDR sequences of the mouse anti-EphA4 antibody in heavy chain variable region and light chain variable region.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 14, 2019
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Ryota Taguchi, Toshio Imai, Eiji Inoue, Akio Yamada, Aki Nakatani, Toshifumi Hirayama, Yuichi Ono, Shunsuke Ito