Patents by Inventor Yasuhiko Masuho

Yasuhiko Masuho 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: 20190367630
    Abstract: The present inventors generated modified antibodies in which several Fc domains are linked in tandem to the C terminus of the heavy chain, and modified antibodies in which Fc domains are linked in tandem via spacers, and measured the affinity for Fc receptors, CDC activity, and ADCC activity. A previous report indicated that CDC activity is not enhanced by linking multiple Fcs. However, the modified antibodies of the preset invention exhibited enhanced ADCC activity. The methods of the present invention enable provision of antibody pharmaceuticals having a marked therapeutic effect.
    Type: Application
    Filed: August 12, 2019
    Publication date: December 5, 2019
    Applicants: KM Biologics Co., Ltd., Teijin Pharma Limited
    Inventors: Yasuhiko Masuho, Hiroaki Nagashima
  • Publication number: 20090311748
    Abstract: Novel full-length cDNAs are provided. cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Application
    Filed: July 13, 2009
    Publication date: December 17, 2009
    Applicant: Acceleron Pharma Inc.
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20090304715
    Abstract: The present inventors generated modified antibodies in which several Fc domains are linked in tandem to the C terminus of the heavy chain, and modified antibodies in which Fc domains are linked in tandem via spacers, and measured the affinity for Fc receptors, CDC activity, and ADCC activity. A previous report indicated that CDC activity is not enhanced by linking multiple Fcs. However, the modified antibodies of the present invention exhibited enhanced ADCC activity. The methods of the present invention enable provision of antibody pharmaceuticals having a marked therapeutic effect.
    Type: Application
    Filed: March 2, 2007
    Publication date: December 10, 2009
    Applicant: TOKYO UNIVERSITY OF SCIENCE
    Inventors: Yasuhiko Masuho, Hiroaki Nagashima
  • Patent number: 7560541
    Abstract: Novel full-length cDNAs are provided. cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: July 14, 2009
    Assignee: Acceleron Pharma, Inc.
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20080171353
    Abstract: The clone PLACE6002312 having a structure characteristic of G protein-coupled receptor was isolated from a human placental full-length cDNA library prepared by the oligo-capping method. Database search revealed that PLACE6002312 had the highest homology to HISTAMINE H2 RECEPTOR. Analysis for the expression of PLACE6002312 gene in human tissues revealed that the gene was expressed in various tissues, such as heart, liver, and ovary. In addition, histamine was found to be one of ligands for PLACE 6002312 by ligand-binding assay. Furthermore, a full-length cDNA for the mouse homolog of PLACE6002312 was isolated and the deduced amino acid sequence was revealed to comprise a structure characteristic of G protein-coupled receptor. PLACE6002312 can be used to screen for agonists and antagonists useful as pharmaceuticals and to diagnose various diseases caused by the abnormal activity or expression of the polypeptide.
    Type: Application
    Filed: August 7, 2007
    Publication date: July 17, 2008
    Applicant: Astellas Pharma Inc.
    Inventors: Tomoyasu SUGIYAMA, Noriyuki Morikawa, Ai Wakamatsu, Tamaki Oda, Ryotaro Irie, Takao Isogai, Yasuhiko Masuho
  • Publication number: 20080032304
    Abstract: cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Application
    Filed: June 25, 2007
    Publication date: February 7, 2008
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Patent number: 7193069
    Abstract: Novel full-length cDNAs are provided. 2443 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 20, 2007
    Assignee: Research Association for Biotechnology
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20070015163
    Abstract: Novel full-length cDNAs are provided. 1639 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Application
    Filed: June 27, 2005
    Publication date: January 18, 2007
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20060105376
    Abstract: Novel full-length cDNAs are provided. 2443 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Application
    Filed: December 5, 2005
    Publication date: May 18, 2006
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20060029945
    Abstract: Novel full-length cDNAs are provided. 1970 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Application
    Filed: March 7, 2005
    Publication date: February 9, 2006
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Patent number: 6979557
    Abstract: Novel full-length cDNAs are provided. 1639 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: December 27, 2005
    Assignee: Research Association for Biotechnology
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Patent number: 6943241
    Abstract: Novel full-length cDNAs are provided. 1970 cDNA derived from human have been isolated. The full-length nucleotide sequences of the cDNA and amino acid sequences encoded by the nucleotide sequences have been determined. Because the cDNA of the present invention are full-length and contain the translation start site, they provide information useful for analyzing the functions of the polypeptide.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: September 13, 2005
    Assignee: Research Association for Biotechnology
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20040147720
    Abstract: The clone PLACE6002312 having a structure characteristic of G protein-coupled receptor was isolated from a human placental full-length cDNA library prepared by the oligo-capping method. Database search revealed that PLACE6002312 had the highest homology to HISTAMINE H2 RECEPTOR. Analysis for the expression of PLACE6002312 gene in human tissues revealed that the gene was expressed in various tissues, such as heart, liver, and ovary. In addition, histamine was found to be one of ligands for PLACE 6002312 by ligand-binding assay. Furthermore, a full-length cDNA for the mouse homolog of PLACE6002312 was isolated, and the deduced amino acid sequence was revealed to comprise a structure characteristic of G protein-coupled receptor. PLACE6002312 can be used to screen for agonists and antagonists useful as pharmaceuticals and to diagnose various diseases caused by the abnormal activity or expression of the polypeptide.
    Type: Application
    Filed: February 9, 2004
    Publication date: July 29, 2004
    Inventors: Tomoyasu Sugiyama, Noriyuki Morikawa, Ai Wakamatsu, Tamaki Oda, Ryotaro Irie, Takao Isogai, Yasuhiko Masuho
  • Publication number: 20040005560
    Abstract: Novel full-length cDNAs are provided.
    Type: Application
    Filed: March 28, 2002
    Publication date: January 8, 2004
    Applicant: Helix Research Institute
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-Ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20030236392
    Abstract: Novel full-length cDNAs are provided.
    Type: Application
    Filed: March 25, 2002
    Publication date: December 25, 2003
    Applicant: Helix Research Institute
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-lchi Yamamoto, Yuuko lsono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro lrie, lchiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Publication number: 20030219741
    Abstract: Novel full-length cDNAs are provided.
    Type: Application
    Filed: March 12, 2002
    Publication date: November 27, 2003
    Applicant: Helix Research Institute
    Inventors: Takao Isogai, Tomoyasu Sugiyama, Tetsuji Otsuki, Ai Wakamatsu, Hiroyuki Sato, Shizuko Ishii, Jun-Ichi Yamamoto, Yuuko Isono, Yuri Hio, Kaoru Otsuka, Keiichi Nagai, Ryotaro Irie, Ichiro Tamechika, Naohiko Seki, Tsutomu Yoshikawa, Motoyuki Otsuka, Kenji Nagahari, Yasuhiko Masuho
  • Patent number: 5783670
    Abstract: Human monoclonal antibodies which belong to the IgGl subclass and are specific for HIV are described. The monoclonal antibodies have potential for use in the diagnosis, prevention and therapy of HIV infection.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 21, 1998
    Assignees: The University of Arizona, Department of Internal Medicine, Section of Hematology and Oncology, Teijin Limited
    Inventors: Yasuhiko Masuho, Toru Sugano, Yoh-ichi Matsumoto, Takashi Kawamura, Evan Hersh, Eskild Petersen, Douglas Lake
  • Patent number: 5695927
    Abstract: Human monoclonal antibodies which belong to the IgG1 subclass and are specific for HIV are described. The monoclonal antibodies have potential for use in the diagnosis, prevention and therapy of HIV infection.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: December 9, 1997
    Assignees: The University of Arizona, Department of Internal Medicine, Section of Hematology and Oncology, Teijin Limited
    Inventors: Yasuhiko Masuho, Toru Sugano, Yoh-ichi Matsumoto, Takashi Kawamura, Evan Hersh, Eskild Petersen, Douglas Lake
  • Patent number: 5681707
    Abstract: A method of immunologically assaying intact human osteocalcin in a human assay sample is provided by using an antibody having an epitope in a region of an amino acid sequence 1 to 20 on the N-terminal side of human osteocalcinand an antibody having an epitope in a region of an amino acid sequence 36 to 49 on the C-terminal side of human osteocalcin. Furthermore, a method of immunologically assaying the total amount of human intact osteocalcin in a human assay sample is provided. A reagent and a kit therefor are also described, as well as a monclonal antibody and a polyclonal antibody used for the assay a process for producing these antibodies; and a process for use of these antibodies.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 28, 1997
    Assignee: Teijin Limited
    Inventors: Kenji Hosoda, Hitomi Honda, Takaharu Kubota, Yasuhiko Masuho
  • Patent number: 5650319
    Abstract: The human monoclonal antibody to the glycoprotein gpIII of varicella zoster virus (VZV), and hybridoma producing same, are provided. The hybridoma is obtained by immunizing human lymphocytes with gpIII antigen in the presence of a mitogen, and selecting a monoclonal antibody which reacts with a cell monolayer ELISA plate but substantially does not react with a cell homogenate ELISA plate.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: July 22, 1997
    Assignee: Teijin Limited
    Inventors: Yasuhiko Masuho, Toru Sugano, Takami Tomiyama, Satoshi Sasaki, Tsuyoshi Kimura, Takashi Kawamura, Yohichi Matsumoto