Patents by Inventor Yasuo Koishihara

Yasuo Koishihara 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: 8652839
    Abstract: A cancer vaccine containing as an active ingredient an antigen-specific dendritic cell pulsed by an HM1.24 protein, HM1.24 peptide or transduced with an HM1.24-encoding gene, or HM1.24 protein-encoding DNA or RNA.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: February 18, 2014
    Assignees: Chugai Seiyaku Kabushiki Kaisha, University College London
    Inventors: Yong Kwee, Masaaki Kosaka, Yasuo Koishihara
  • Patent number: 8603481
    Abstract: A therapeutic agent for solid tumors, the agent comprising as an active ingredient, an antibody that specifically binds to a protein having the amino acid sequence represented by SEQ ID NO:2 or an antibody fragment maintaining the antibody activity.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: December 10, 2013
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Shigeto Kawai, Masahiko Mihara, Yasuo Koishihara
  • Patent number: 7892543
    Abstract: The invention provides a reshaped human anti-HM 1.24 antibody having: (A) an L chain having (1) the C region of a human L chain, and (2) the V region of an L chain having the FR of a human L chain and the CDR of the L chain of a mouse anti-HM 1.24 monoclonal antibody; and (B) an H chain having (1) the C region of a human H chain, and (2) the V region of an H chain having the FR of a human H chain and the CDR of the H chain of a mouse anti-HM 1.24 monoclonal antibody. This reshaped human antibody is derived from human antibody and the CDR has a low antigenicity, and the reshaped human antibody of the present invention has a low antigenicity and can be used for medical treatment.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: February 22, 2011
    Assignee: Chugai Seiyako Kabushiki Kaisha
    Inventors: Koichiro Ono, Toshihiko Ohtomo, Masayuki Tsuchiya, Yasushi Yoshimura, Yasuo Koishihara, Masaaki Kosaka
  • Patent number: 7790152
    Abstract: An enhancer, for treatment of lymphocytic tumors, of an antibody that specifically binds to protein having the amino acid sequence as set forth in SEQ ID NO: 1 and that has a cytotoxic activity, said enhancer comprising a biological response modifier as an active ingredient.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: September 7, 2010
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masaaki Kosaka, Yasuo Koishihara
  • Patent number: 7776612
    Abstract: The present invention is directed to a novel method for quantifying antigen, such as the amount expressed on a cell. The method comprises formulating an equation of correlation between the amount expressed of expressed antigen and the intensity of fluorescence from fluorescent labelled antibody.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 17, 2010
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Shigeto Kawai, Shinichiro Iida, Yasuo Koishihara
  • Publication number: 20070110753
    Abstract: A therapeutic agent for solid tumors, said agent comprising as an active ingredient, an antibody that specifically binds to a protein having the amino acid sequence as set forth in SEQ ID NO: 2 or an antibody fragment that maintains the antibody activity.
    Type: Application
    Filed: October 7, 2004
    Publication date: May 17, 2007
    Inventors: Shigeto Kawai, Masahiko Mihara, Yasuo Koishihara
  • Publication number: 20060153883
    Abstract: A cancer vaccine containing as an active ingredient an antigen-specific dendritic cell pulsed by an HM1.24 protein, HM1.24 peptide or transduced with an HM1.24-encoding gene, or HM1.24 protein-encoding DNA or RNA.
    Type: Application
    Filed: October 30, 2003
    Publication date: July 13, 2006
    Inventors: Yong Kwee, Masaaki Kosaka, Yasuo Koishihara
  • Patent number: 6908750
    Abstract: There are provided a genomic DNA comprising 4 exons encoding the amino acid sequence as set forth in SEQ ID NO: 2 and 3 introns ligating them, and a splicing variant of said genomic DNA; as well as a DNA having the base sequence as set forth in SEQ ID NO: 4 and a promoter activity and the fragment thereof, and uses thereof.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 21, 2005
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Toshihiko Ohtomo, Masayuki Tsuchiya, Yasuo Koishihara, Masaaki Kosaka
  • Patent number: 6900052
    Abstract: A method of culturing a protein-producing cell, said method comprising co-culturing one transformed cell that can constitutively produce said protein with the parent cell of said transformed cell.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: May 31, 2005
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Yasuko Ozaki, Yasuo Koishihara, Shin-ichi Kaiho
  • Publication number: 20040115741
    Abstract: To provide a novel method of quantitating the amount expressed of antigen.
    Type: Application
    Filed: October 10, 2003
    Publication date: June 17, 2004
    Inventors: Shigeto Kawai, Shinichiro Iida, Yasuo Koishihara
  • Patent number: 6699974
    Abstract: A reshaped human anti-HM 1.24 antibody comprising: (A) an L chain comprising (1) the C region of a human L chain, and (2) the V region of an L chain comprising the FR of a human L chain and the CDR of the L chain of a mouse anti-HM 1.24 monoclonal antibody; and (B) an H chain comprising (1) the C region of a human H chain, and (2) the V region of an H chain comprising the FR of a human H chain and the CDR of the H chain of a mouse anti-HM 1.24 monoclonal antibody. Since most of this reshaped human antibody is derived from human antibody and the CDR has a low antigenicity, the reshaped human antibody of the present invention has a low antigenicity and, therefore, is expected to be-used for medical treatment.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: March 2, 2004
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Koichiro Ono, Toshihiko Ohtomo, Masayuki Tsuchiya, Yasushi Yoshimura, Yasuo Koishihara, Masaaki Kosaka
  • Publication number: 20030180889
    Abstract: There are provided a genomic DNA comprising 4 exons encoding the amino acid sequence as set forth in SEQ ID NO: 2 and 3 introns ligating them, and a splicing variant of said genomic DNA; as well as a DNA having the base sequence as set forth in SEQ ID NO: 4 and a promoter activity and the fragment thereof, and uses thereof.
    Type: Application
    Filed: April 25, 2003
    Publication date: September 25, 2003
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Toshihiko Ohtomo, Masayuki Tsuchiya, Yasuo Koishihara, Masaaki Kosaka
  • Publication number: 20030175281
    Abstract: An enhancer, for treatment of lymphocytic tumors, of an antibody that specifically binds to protein having the amino acid sequence as set forth in SEQ ID NO: 1 and that has a cytotoxic activity, said enhancer comprising a biological response modifier as an active ingredient.
    Type: Application
    Filed: May 2, 2003
    Publication date: September 18, 2003
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Masaaki Kosaka, Yasuo Koishihara
  • Patent number: 6613546
    Abstract: There are provided a genomic DNA comprising 4 exons encoding the amino acid sequence as set forth in SEQ ID NO: 2 and 3 introns ligating them, and a splicing variant of said genomic DNA; as well as a DNA having the base sequence as set forth in SEQ ID NO: 4 and a promoter activity and the fragment thereof, and uses thereof.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 2, 2003
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Toshihiko Ohtomo, Masayuki Tsuchiya, Yasuo Koishihara, Masaaki Kosaka
  • Publication number: 20030129185
    Abstract: A reshaped human anti-HM 1.
    Type: Application
    Filed: August 13, 2002
    Publication date: July 10, 2003
    Inventors: Koichiro Ono, Toshihiko Ohtomo, Masayuki Tsuchiya, Yasushi Yoshimura, Yasuo Koishihara, Masaaki Kosaka
  • Publication number: 20030113334
    Abstract: A therapeutic agent for lymphatic tumors (excluding myeloma) comprising as an active ingredient an antibody that specifically binds to a protein having the amino acid sequence as set forth in SEQ ID NO: 1 and that has a cytotoxic activity.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 19, 2003
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Yasuo Koishihara, Yasushi Yoshimura
  • Publication number: 20030045691
    Abstract: A reshaped human anti-HM 1.
    Type: Application
    Filed: April 1, 1999
    Publication date: March 6, 2003
    Inventors: KOICHIRO ONO, TOSHIHIKO OHTOMO, MASAYUKI TSUCHIYA, YASUSHI YOSHIMURA, YASUO KOISHIHARA
  • Patent number: 6503510
    Abstract: A therapeutic agent for lymphatic tumors (excluding myeloma) comprising as an active ingredient an antibody that specifically binds to a protein having the amino acid sequence as set forth in SEQ ID NO:1 and SEQ ID NO:5 and that has a cytotoxic activity.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: January 7, 2003
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Yasuo Koishihara, Yasushi Yoshimura
  • Publication number: 20020037288
    Abstract: A therapeutic agent for lymphatic tumors (excluding myeloma) comprising as an active ingredient an antibody that specifically binds to a protein having the amino acid sequence as set forth in SEQ ID NO: 1 and that has a cytotoxic activity.
    Type: Application
    Filed: August 11, 1999
    Publication date: March 28, 2002
    Inventors: YASUO KOISHIHARA, YASUSHI YOSHIMURA
  • Publication number: 20020034507
    Abstract: A novel inhibitor of lymphocyte activation is provided.
    Type: Application
    Filed: January 17, 2001
    Publication date: March 21, 2002
    Inventor: Yasuo Koishihara