Patents by Inventor Jun-ichi Nezu

Jun-ichi Nezu 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: 20150259417
    Abstract: An antibody capable of binding to a specific region of glypican 3, as well as a humanized antibody created based on that antibody are disclosed. The anti-GPC3 antibody of the invention has a higher ADCC activity and CDC activity compared with those of a conventional antibody. The antibody of the present invention is useful as a cell growth inhibitor, an anticancer agent and an agent for diagnosis of cancers.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 17, 2015
    Inventors: Kiyotaka Nakano, Takeshi Yoshino, Jun-Ichi Nezu, Hiroyuki Tsunoda, Tomoyuki Igawa, Hiroko Konishi, Megumi Tanaka, Izumi Sugo, Shigeto Kawai, Takahiro Ishiguro, Yasuko Kinoshita
  • Patent number: 8748128
    Abstract: Four novel transporter genes were successfully cloned by screening novel transporter genes based on the human OATP transporter gene sequence. These transporters are useful in the development of drugs by taking advantage of the activity of transporting biological substances and various drugs. It was also found that these transporter genes have single nucleotide polymorphisms (SNP). Gene diagnosis based on the polymorphisms (such as SNP) in these transporter genes enables one to judge, for example, the efficacy of a drug therapy.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: June 10, 2014
    Assignees: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose, Akira Tsuji
  • Publication number: 20120220755
    Abstract: Novel genes significantly homologous to organic cation transporters OCT1 and OCT2 have been successfully isolated by screening a fetal gene library by random sequencing. Proteins encoded by these genes function as transporters of various organic cations.
    Type: Application
    Filed: March 14, 2011
    Publication date: August 30, 2012
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Jun-ichi Nezu, Asuka Oku, Akira Tsuji
  • Patent number: 8242245
    Abstract: Novel fetal genes (fls353 and fls485) have been successfully isolated from human fetal liver-derived cDNAs. These genes were specifically expressed in tissues including fetal tissues which are thought to contain a large number of undifferentiated cells and actively differentiating/proliferating cells. High levels of expression of these genes were observed also in a variety of cancer cells. The proteins and genes encoding the proteins can be used as the tool for developing drugs for the treatment of tumors.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: August 14, 2012
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose
  • Publication number: 20120129184
    Abstract: The gene responsible for systemic carnitine deficiency was found to be the OCTN2 gene involved in the transportation of organic cations. This invention enables tests for this disease by detecting whether or not the OCTN2 gene has a mutation. Furthermore, systemic carnitine deficiency can be treated using the normal OCTN2 gene and its protein.
    Type: Application
    Filed: August 3, 2011
    Publication date: May 24, 2012
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Jun-Ichi Nezu, Akira Tsuji, Asuka Ose
  • Publication number: 20110142843
    Abstract: Novel fetal genes (fls353 and fls485) have been successfully isolated from human fetal liver-derived cDNAs. These genes were specifically expressed in tissues including fetal tissues which are thought to contain a large number of undifferentiated cells and actively differentiating/proliferating cells. High levels of expression of these genes were observed also in a variety of cancer cells. The proteins and genes encoding the proteins can be used as the tool for developing drugs for the treatment of tumors.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 16, 2011
    Inventors: Jun-ichi Nezu, Asuka Ose
  • Patent number: 7947470
    Abstract: Novel genes significantly homologous to organic cation transporters OCT1 and OCT2 have been successfully isolated by screening a fetal gene library by random sequencing. Proteins encoded by these genes function as transporters of various organic cations.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: May 24, 2011
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Oku
  • Patent number: 7919086
    Abstract: An antibody capable of binding to a specific region of glypican 3, as well as a humanized antibody created based on that antibody are disclosed. The anti-GPC3 antibody of the invention has a higher ADCC activity and CDC activity compared with those of a conventional antibody. The antibody of the present invention is useful as a cell growth inhibitor, an anticancer agent and an agent for diagnosis of cancers.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: April 5, 2011
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kiyotaka Nakano, Takeshi Yoshino, Jun-Ichi Nezu, Hiroyuki Tsunoda, Tomoyuki Igawa, Hiroko Konishi, Megumi Tanaka, Izumi Sugo, Shigeto Kawai, Takahiro Ishiguro, Yasuko Kinoshita
  • Patent number: 7919604
    Abstract: Novel fetal genes (fls353 and fls485) have been successfully isolated from human fetal liver-derived cDNAs. These genes were specifically expressed in tissues including fetal tissues which are thought to contain a large number of undifferentiated cells and actively differentiating/proliferating cells. High levels of expression of these genes were observed also in a variety of cancer cells. The proteins and genes encoding the proteins can be used as the tool for developing drugs for the treatment of tumors.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: April 5, 2011
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose
  • Publication number: 20100248359
    Abstract: An antibody capable of binding to a specific region of glypican 3, as well as a humanized antibody created based on that antibody are disclosed. The anti-GPC3 antibody of the invention has a higher ADCC activity and CDC activity compared with those of a conventional antibody. The antibody of the present invention is useful as a cell growth inhibitor, an anticancer agent and an agent for diagnosis of cancers.
    Type: Application
    Filed: June 9, 2010
    Publication date: September 30, 2010
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kiyotaka Nakano, Takeshi Yoshino, Jun-Ichi Nezu, Hiroyuki Tsunoda, Tomoyuki Igawa, Hiroko Konishi, Megumi Tanaka, Izumi Sugo, Shigeto Kawai, Takahiro Ishiguro, Yasuko Kinoshita
  • Patent number: 7776329
    Abstract: An antibody capable of binding to a specific region of glypican 3, as well as a humanized antibody created based on that antibody are disclosed. The anti-GPC3 antibody of the invention has a higher ADCC activity and CDC activity compared with those of a conventional antibody. The antibody of the present invention is useful as a cell growth inhibitor, an anticancer agent and an agent for diagnosis of cancers.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 17, 2010
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kiyotaka Nakano, Takeshi Yoshino, Jun-Ichi Nezu, Hiroyuki Tsunoda, Tomoyuki Igawa, Hiroko Konishi, Megumi Tanaka, Izumi Sugo, Shigeto Kawai, Takahiro Ishiguro, Yasuko Kinoshita
  • Publication number: 20100196960
    Abstract: Four novel transporter genes were successfully cloned by screening novel transporter genes based on the human OATP transporter gene sequence. These transporters are useful in the development of drugs by taking advantage of the activity of transporting biological substances and various drugs. It was also found that these transporter genes have single nucleotide polymorphisms (SNP). Gene diagnosis based on the polymorphisms (such as SNP) in these transporter genes enables one to judge, for example, the efficacy of a drug therapy.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Inventors: Jun-Ichi Nezu, Asuka Ose, Akira Tsuji
  • Publication number: 20090220967
    Abstract: The gene responsible for systemic carnitine deficiency was found to be the OCTN2 gene involved in the transportation of organic cations. This invention enables tests for this disease by detecting whether or not the OCTN2 gene has a mutation. Furthermore, systemic carnitine deficiency can be treated using the normal OCTN2 gene and its protein.
    Type: Application
    Filed: August 18, 2008
    Publication date: September 3, 2009
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Jun-Ichi Nezu, Akira Tsuji, Asuka Ose
  • Publication number: 20080206750
    Abstract: Novel fetal genes (fls353 and fls485) have been successfully isolated from human fetal liver-derived cDNAs. These genes were specifically expressed in tissues including fetal tissues which are thought to contain a large number of undifferentiated cells and actively differentiating/proliferating cells. High levels of expression of these genes were observed also in a variety of cancer cells. The proteins and genes encoding the proteins can be used as the tool for developing drugs for the treatment of tumors.
    Type: Application
    Filed: May 8, 2007
    Publication date: August 28, 2008
    Inventors: Jun-Ichi Nezu, Asuka Ose
  • Patent number: 7413860
    Abstract: The gene responsible for systemic carnitine deficiency was found to be the OCTN2 gene involved in the transportation of organic cations. This invention enables tests for this disease by detecting whether or not the OCTN2 gene has a mutation. Furthermore, systemic carnitine deficiency can be treated using the normal OCTN2 gene and its protein.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: August 19, 2008
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose
  • Publication number: 20070190599
    Abstract: An antibody capable of binding to a specific region of glypican 3, as well as a humanized antibody created based on that antibody are disclosed. The anti-GPC3 antibody of the invention has a higher ADCC activity and CDC activity compared with those of a conventional antibody. The antibody of the present invention is useful as a cell growth inhibitor, an anticancer agent and an agent for diagnosis of cancers.
    Type: Application
    Filed: July 8, 2005
    Publication date: August 16, 2007
    Inventors: Kiyotaka Nakano, Takeshi Yoshino, Jun-Ichi Nezu, Hiroyuki Tsunoda, Tomoyuki Igawa, Hiroko Konishi, Megumi Tanaka, Izumi Sugo, Shigeto Kawai, Takahiro Ishiguro, Yasuko Kinoshita
  • Patent number: 7214774
    Abstract: Novel fetal genes (fls353 and fls485) have been successfully isolated from human fetal liver-derived cDNAs. These genes were specifically expressed in tissues including fetal tissues which are thought to contain a large number of undifferentiated cells and actively differentiating/proliferating cells. High levels of expression of these genes were observed also in a variety of cancer cells. The proteins and genes encoding the proteins can be used as the tool for developing drugs for the treatment of tumors.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: May 8, 2007
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose
  • Patent number: 7186536
    Abstract: A novel gene having the consensus sequence of a serine-threonine kinase active site has been isolated by the suppression subtractive hybridization method which comprised of preparing a library of genes expressed specifically in fetal livers and isolating clones from this library at random. This gene presumably participates in cell growth control because it is highly expressed, especially in actively growing cells, and exhibits a significant homology with a vaccinia virus B1R kinase gene. Thus, it can be utilized as a target for developing cell growth inhibitors or antitumor agents.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: March 6, 2007
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-ichi Nezu, Asuka Oku
  • Publication number: 20060121523
    Abstract: Four novel transporter genes were successfully cloned by screening novel transporter genes based on the human OATP transporter gene sequence. These transporters are useful in the development of drugs by taking advantage of the activity of transporting biological substances and various drugs. It was also found that these transporter genes have single nucleotide polymorphisms (SNP). Gene diagnosis based on the polymorphisms (such as SNP) in these transporter genes enables one to judge, for example, the efficacy of a drug therapy.
    Type: Application
    Filed: January 19, 2006
    Publication date: June 8, 2006
    Inventors: Jun-Ichi Nezu, Asuka Ose, Akira Tsuji
  • Patent number: 7045316
    Abstract: Four novel transporter genes were successfully cloned by screening novel transporter genes based on the human OATP transporter gene sequence. These transporters are useful in the development of drugs by taking advantage of the activity of transporting biological substances and various drugs. It was also found that these transporter genes have single nucleotide polymorphisms (SNP). Gene diagnosis based on the polymorphisms (such as SNP) in these transporter genes enables one to judge, for example, the efficacy of a drug therapy.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: May 16, 2006
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Jun-Ichi Nezu, Asuka Ose, Akira Tsuji