Patents by Inventor Toshihiro Nakashima

Toshihiro Nakashima 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: 11186630
    Abstract: A human antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The human antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a human antibody suitable for application to human body.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 30, 2021
    Assignee: KM BIOLOGICS CO., LTD.
    Inventors: Masaharu Torikai, Akihiko Hosoi, Tomoyo Takeo, Masayo Ueno, Kenji Soejima, Toshihiro Nakashima, Yukio Ando, Hirofumi Jono, Yu Su, Mineyuki Mizuguchi
  • Publication number: 20200181250
    Abstract: A human antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The human antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a human antibody suitable for application to human body.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 11, 2020
    Applicant: KM Biologics Co., Ltd.
    Inventors: Masaharu TORIKAI, Akihiko HOSOI, Tomoyo TAKEO, Masayo UENO, Kenji SOEJIMA, Toshihiro NAKASHIMA, Yukio ANDO, Hirofumi JONO, Yu SU, Mineyuki MIZUGUCHI
  • Patent number: 10604562
    Abstract: A humanized antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The humanized antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a humanized antibody suitable for application to human body.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 31, 2020
    Assignees: KM BIOLOGICS CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Akihiko Hosoi, Masaharu Torikai, Tomoyo Takeo, Masayo Ueno, Hirofumi Higuchi, Kenji Soejima, Toshihiro Nakashima, Yukio Ando, Hirofumi Jono, Yu Su
  • Patent number: 10597440
    Abstract: A human antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The human antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a human antibody suitable for application to human body.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 24, 2020
    Assignee: KM BIOLOGICS CO., LTD.
    Inventors: Masaharu Torikai, Akihiko Hosoi, Tomoyo Takeo, Masayo Ueno, Kenji Soejima, Toshihiro Nakashima, Yukio Ando, Hirofumi Jono, Yu Su, Mineyuki Mizuguchi
  • Patent number: 10570199
    Abstract: The present invention relates to a human anti-human IL-18 antibody which reacts with human interleukin-18 (human IL-18) and does not react with a K53A variant of human IL-18.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: February 25, 2020
    Assignee: KM Biologics Co., Ltd.
    Inventors: Hiroyuki Shimizu, Miyuki Matsumoto, Kenji Soejima, Masaharu Torikai, Toshihiro Nakashima
  • Patent number: 10487137
    Abstract: The present invention provides for a method for improving properties of an antibody such as an expression level and stability. A method for obtaining an antibody with an improved expression level and/or stability by modifying human antibody or a humanized antibody, characterized by that at least any one of the amino acid residues at position 8, 12, 15 or 18 (according to Kabat numbering) in a light chain variable region (hereinafter referred to as “VL chain”) of a human antibody or a humanized antibody is substituted with a different amino acid other than proline or cysteine, and a human antibody or a humanized antibody or a human antibody fragment or a humanized antibody fragment with an improved expression level and/or stability which are obtained by said method.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 26, 2019
    Assignee: THE CHEMO-SERO-THERAPEUTIC RESEARCH INSTITUTE
    Inventors: Masaharu Torikai, Toshihiro Nakashima
  • Publication number: 20190077858
    Abstract: The present invention relates to a human anti-human IL-18 antibody which reacts with human interleukin-18 (human IL-18) and does not react with a K53A variant of human IL-18.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 14, 2019
    Inventors: Hiroyuki Shimizu, Miyuki Matsumoto, Kenji Soejima, Masaharu Torikai, Toshihiro Nakashima
  • Publication number: 20180118813
    Abstract: The present invention provides for a method for improving properties of an antibody such as an expression level and stability. A method for obtaining an antibody with an improved expression level and/or stability by modifying human antibody or a humanized antibody, characterized by that at least any one of the amino acid residues at position 8, 12, 15 or 18 (according to Kabat numbering) in a light chain variable region (hereinafter referred to as “VL chain”) of a human antibody or a humanized antibody is substituted with a different amino acid other than proline or cysteine, and a human antibody or a humanized antibody or a human antibody fragment or a humanized antibody fragment with an improved expression level and/or stability which are obtained by said method.
    Type: Application
    Filed: December 11, 2017
    Publication date: May 3, 2018
    Inventors: Masaharu TORIKAI, Toshihiro NAKASHIMA
  • Patent number: 9873730
    Abstract: The present invention provides for a method for improving properties of an antibody such as an expression level and stability. A method for obtaining an antibody with an improved expression level and/or stability by modifying a human antibody or a humanized antibody, characterized by that at least any one of the amino acid residues at position 8, 12, 15 or 18 (according to Kabat numbering) in a light chain variable region (hereinafter referred to as “VL chain”) of a human antibody or a humanized antibody is substituted with a different amino acid other than proline or cysteine, and a human antibody or a humanized antibody or a human antibody fragment or a humanized antibody fragment with an improved expression level and/or stability which are obtained by said method.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: January 23, 2018
    Assignee: THE CHEMO-SERO-THERAPEUTIC RESERACH INSTITUTE
    Inventors: Masaharu Torikai, Toshihiro Nakashima
  • Publication number: 20160347832
    Abstract: A humanized antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The humanized antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a humanized antibody suitable for application to human body.
    Type: Application
    Filed: January 23, 2015
    Publication date: December 1, 2016
    Applicants: THE CHEMO-SERO-THERAPEUTIC RESEARCH INSTITUTE, NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSIT Y
    Inventors: Akihiko HOSOI, Masaharu TORIKAI, Tomoyo TAKEO, Masayo UENO, Hirofumi HIGUCHI, Kenji SOEJIMA, Toshihiro NAKASHIMA, Yukio ANDO, Hirofumi JONO, Yu SU
  • Publication number: 20160340419
    Abstract: A human antibody which comprises a complementarity determining region of an H chain consisting of the amino acid sequence as shown in SEQ ID NOs: 1 to 3 and a complementarity determining region of an L chain consisting of the amino acid sequence as shown in SEQ ID NOs: 4 to 6. The human antibody of the present invention has the activity to specifically bind to transthyretin (TTR) with structural change and the activity to inhibit fibrillization of TTR and is a human antibody suitable for application to human body.
    Type: Application
    Filed: January 23, 2015
    Publication date: November 24, 2016
    Applicant: THE CHEMO-SERO-THERAPEUTIC RESEARCH INSTITUTE
    Inventors: Masaharu TORIKAI, Akihiko HOSOI, Tomoyo TAKEO, Masayo UENO, Kenji SOEJIMA, Toshihiro NAKASHIMA, Yukio ANDO, Hirofumi JONO, Yu SU, Mineyuki MIZUGUCHI
  • Patent number: 8715655
    Abstract: The present invention provides a human anti-?9 integrin antibody or an antibody fragment which specifically recognize human ?9 integrin and mouse ?9 integrin, inhibit interaction with their ligands, particularly, the antibody or antibody fragment which recognize loop regions of human and mouse ?9 integrins, a gene encoding the antibody or antibody fragment, a recombinant expression vector containing the gene, a transformant harboring the gene, production method of human anti-?9 integrin antibody or antibody fragment using the transformant, and an agent for the prophylaxis or treatment of rheumatoid arthritis which contains the antibody or antibody fragment.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: May 6, 2014
    Assignee: Juridical Foundation The Chemo-Sero-Therapeutic Research Institute
    Inventors: Masaharu Torikai, Daisuke Ishikawa, Toshihiro Nakashima, Hirofumi Higuchi, Fumihiko Sakai, Nobuchika Yamamoto, Hirotada Fujita, Katsunari Taguchi
  • Patent number: 8603476
    Abstract: The present invention provides a humanized anti-human ?9 integrin antibody having improved activity and/or property as compared to a donor mouse anti-human ?9 integrin antibody, namely, a humanized anti-human ?9 integrin antibody containing a heavy-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:11 and a light-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:17, a humanized anti-human ?9 integrin antibody containing a heavy-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:13 and a light-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:17, a humanized anti-human ?9 integrin antibody containing a heavy-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:15 and a light-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:9, and a means for the prophylaxis or treatment of various diseases involving human ?9 integrin in the pathogenesis, which
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: December 10, 2013
    Assignee: Astellas Pharma Inc.
    Inventors: Kenji Uehara, Hirofumi Higuchi, Toshihiro Nakashima, Daisuke Ishikawa, Nobuchika Yamamoto, Hirotada Fujita, Fumihiko Sakai
  • Patent number: D676887
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: February 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Toshihiro Nakashima, Yasuki Yamakawa
  • Patent number: D676900
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: February 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Akio Ohno, Toshihiro Nakashima, Yasuki Yamakawa, Takayuki Takahashi, Kenzo Horie
  • Patent number: D685835
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 9, 2013
    Assignee: Panasonic Corporation
    Inventor: Toshihiro Nakashima
  • Patent number: D707743
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: June 24, 2014
    Assignee: Panasonic Corporation
    Inventor: Toshihiro Nakashima
  • Patent number: D712875
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Panasonic Corporation
    Inventors: Takehito Katori, Toshihiro Nakashima
  • Patent number: D727999
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Yuyama, Takashi Tsukahara, Toshihiro Nakashima
  • Patent number: D740792
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 13, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi Jobetto, Toshihiro Nakashima