Patents by Inventor Kiyoshi Takatsu

Kiyoshi Takatsu 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: 10479836
    Abstract: The present invention relates to a therapeutic agent for pulmonary hypertension comprising an interleukin-5 receptor (hereinafter, abbreviated to “IL-5R”)-inhibiting compound and therapeutic method therefor. More specifically, the present invention relates to a therapeutic agent for pulmonary hypertension comprising an antibody or an antibody fragment capable of specifically binding to the extracellular region of IL-5R and a therapeutic method therefor.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: November 19, 2019
    Assignees: National University Corporation University of Toyama, KYOWA KIRIN CO., LTD.
    Inventors: Masashi Ikutani, Kiyoshi Takatsu, Hiromi Ehara, Ikuko Fujino, Shinya Ogawa
  • Publication number: 20180155434
    Abstract: The present invention relates to a therapeutic agent for pulmonary hypertension comprising an interleukin-5 receptor (hereinafter, abbreviated to “IL-5R”)-inhibiting compound and therapeutic method therefor. More specifically, the present invention relates to a therapeutic agent for pulmonary hypertension comprising an antibody or an antibody fragment capable of specifically binding to the extracellular region of IL-5R and a therapeutic method therefor.
    Type: Application
    Filed: May 31, 2016
    Publication date: June 7, 2018
    Applicants: University of Toyama, KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Masashi IKUTANI, Kiyoshi TAKATSU, Hiromi EHARA, Ikuko FUJINO, Shinya OGAWA
  • Patent number: 7238354
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor ? chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor ? chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: July 3, 2007
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Publication number: 20070048304
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor ? chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor ? chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Application
    Filed: November 13, 2006
    Publication date: March 1, 2007
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Patent number: 7179464
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor ? chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor ? chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 20, 2007
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Publication number: 20050272918
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor ? chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor ? chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Application
    Filed: August 1, 2005
    Publication date: December 8, 2005
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Patent number: 6890648
    Abstract: A paint composition containing a corrosion inhibitor A prepared from porous silica particles, to which Ca ion is bonded by ion-exchange, and a polyphosphate B preferably at an A/B weight ratio of 60/40 to 5/95 and at an A+B ratio of 5-150 parts by weight based on 100 parts by weight of resinous components. A base metal sheet is preferably one pre-treated with a chemical agent containing at least one fluoroacid. Since the polyphosphate B controls dissolution of Ca ion, an effect of Ca ion on corrosion inhibition is maintained over a long term. The painted metal sheet does not put harmful influences on the environment, since it does not contain chromium compounds.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 10, 2005
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Hirokazu Yano, Yoshikatsu Udagawa, Minoru Kiyotsuka, Kiyoshi Takatsu
  • Publication number: 20030096977
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor &agr; chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor &agr; chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 22, 2003
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Patent number: 6538111
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor &agr; chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor &agr; chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: March 25, 2003
    Assignee: Kyowa Hakko Kogyo Co., LTD
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Publication number: 20020031679
    Abstract: Newly proposed paint composition contains a corrosion inhibitor A prepared from porous silica particles, to which Ca ion is bonded by ion-exchange, and a polyphosphate B preferably at an A/B weight ratio of 60/40 to 5/95 and at an A+B ratio of 5-150 parts by weight based on 100 parts by weight of resinous components. A base metal sheet is preferably one pre-treated with a chemical agent containing at least one fluoroacid. Since the polyphosphate B controls dissolution of Ca ion, an effect of Ca ion on corrosion inhibition is maintained over a long term. The painted metal sheet does not put harmul influences on the environment, since it does not contain chormium compounds.
    Type: Application
    Filed: May 30, 2001
    Publication date: March 14, 2002
    Applicant: Nisshin Steel Co., Ltd.
    Inventors: Hirokazu Yano, Yoshikatsu Udagawa, Minoru Kiyotsuka, Kiyoshi Takatsu
  • Patent number: 6018032
    Abstract: The present invention provides monoclonal antibodies and humanized antibodies which react specifically with a human interleukin-5 receptor .alpha. chain. The invention also provides hybridomas and transformants which produce the antibodies, the monoclonal antibodies and humanized antibodies, a method for detecting an interleukin-5 receptor .alpha. chain immunologically by means of these antibodies, as well as a method for diagnosing and treating diseases such as chronic bronchial asthma by means of the monoclonal antibodies and humanized antibodies. The present invention is useful for diagnosis or treatment of diseases such as chronic bronchial asthma.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: January 25, 2000
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Masamichi Koike, Akiko Furuya, Kazuyasu Nakamura, Akihiro Iida, Hideharu Anazawa, Nobuo Hanai, Kiyoshi Takatsu
  • Patent number: 5916767
    Abstract: The invention provides an isolated cDNA sequence coding for murine interleukin 5 receptor, murine secretory interleukin 5 receptor, human interleukin 5 receptor, and human secretory interleukin 5 receptor and products including murine interleukin 5 receptor, murine secretory interleukin 5 receptor, and human interleukin 5 receptor which are produced using the isolated cDNA sequence. These products may be useful for a therapeutic agent for autoimmune disorders and diseases with eosinophilia in which human IL-5 is believed to be involved.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: June 29, 1999
    Assignee: Kiyoshi Takatsu
    Inventors: Kiyoshi Takatsu, Akira Tominaga, Satoshi Takagi, Yoshiyuki Murata
  • Patent number: 5807991
    Abstract: The invention provides an isolated cDNA sequence coding for murine interleukin 5 receptor, murine secretory interleukin 5 receptor, human interleukin 5 receptor, and human secretory interleukin 5 receptor and products including murine interleukin 5 receptor, murine secretory interleukin 5 receptor, and human interleukin 5 receptor which are produced using the isolated cDNA sequence. These products may be useful for a therapeutic agent for autoimmune disorders and diseases with eosinophilia in which human IL-5 is believed to be involved.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: September 15, 1998
    Assignee: Kiyoshi Takatsu
    Inventors: Kiyoshi Takatsu, Akira Tominaga, Satoshi Takagi, Yoshiyuki Murata
  • Patent number: 5760204
    Abstract: The invention provides an isolated cDNA sequence coding for murine interleukin 5 receptor, murine secretory interleukin 5 receptor, human interleukin 5 receptor, and human secretory interleukin 5 receptor and products including murine interleukin 5 receptor, murine secretory interleukin 5 receptor, and human interleukin 5 receptor which are produced using the isolated cDNA sequence. These products may be useful for a therapeutic agent for autoimmune disorders and diseases with eosinophilia in which human IL-5 is believed to be involved.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: June 2, 1998
    Assignee: Kiyoshi Takatsu
    Inventors: Kiyoshi Takatsu, Akira Tominaga, Satoshi Takagi
  • Patent number: 5530098
    Abstract: A cDNA and a chromosomal DNA coding for the human B-cell differentiation factor were provided and the entire nucleotide sequence of said DNAs as well as the entire amino acid sequences of the polypeptide portion of mature human B-cell differentiation factor and the leader peptide were revealed. The method for producing human B-cell differentiation factor by a recombinant gene technology was also provided.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: June 25, 1996
    Assignee: Suntory Limited
    Inventors: Tasuku Honjo, Kiyoshi Takatsu, Eva Severinson
  • Patent number: 5453491
    Abstract: The invention provides an isolated cDNA sequence coding for murine interleukin 5 receptor, murine secretory interleukin 5 receptor, human interleukin 5 receptor, and human secretory interleukin 5 receptor and products including murine interleukin 5 receptor, murine secretory interleukin 5 receptor, and human interleukin 5 receptor which are produced using the isolated cDNA sequence. These products may be useful for a therapeutic agent for autoimmune disorders and diseases with eosinophilia in which human IL-5 is believed to be involved.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: September 26, 1995
    Assignee: Kiyoshi Takatsu
    Inventors: Kiyoshi Takatsu, Akiro Tominaga, Satoshi Takagi, Yoshiyuki Murata
  • Patent number: 5324640
    Abstract: A cDNA and a chromosomal DNA coding for the human B-cell differentiation factor were provided and the entire nucleotide sequence of said DNAs as well as the entire amino acid sequences of the polypeptide portion of mature human B-cell differentiation factor and the leader peptide were revealed. The method for producing human B-cell differentiation factor by a recombinant gene technology was also provided.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: June 28, 1994
    Assignee: Suntory Limited
    Inventors: Tasuku Honjo, Kiyoshi Takatsu, Eva Severinson
  • Patent number: 5015863
    Abstract: This invention relates to a shielding material used as a radiation shield of a container containing radioactive wastes. A radiation shield with an excellent heat-transferring property is fabricated from composite particles (A) obtained by coating core particles (a) of radiation-shielding property with a metal (b) of high thermal conductivity. Composite particles are formed into a certain shape of radiation shield by hot-press forming or other forming or packed into the internal space of radioactive waste container or the shield container cavity to compose a radiation shield.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: May 14, 1991
    Assignees: Sumitomo Heavy Industries, Ltd., Nisshin Steel Co., Ltd.
    Inventors: Eiki Takeshima, Kiyoshi Takatsu, Norio Asano, Masahiro Hozumi
  • Patent number: 4954235
    Abstract: Disclosed herein suspension electroplating of fine particles with metal. An electroplating operatively equipped with a cathode and anode is charged with a a metallic ion-containing electrolyte and particles to be electroplated. The particles have a size of from 0.1 to 10 .mu.m. At least a part of the surface of each particle is conductive. Such a stationary circulating flow of a suspension of the particles in the electrolyte is formed in the bath that the particles are maintained in the suspended condition; the suspension is circulated substantially without coming in contact with the anode; the particles may have a chance of colliding with substantially all surface areas of the working surface of the cathode, and are repeatedly brought in collision with the cathode at a velocity with a normal component of from 0.6 to 6.0 m/min; and a particle concentration of the suspension at the time of collision is from 30 to 55% by volume.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: September 4, 1990
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Eiki Takeshima, Kiyoshi Takatsu, Youichi Kojima, Takahiro Fujii
  • Patent number: 4908106
    Abstract: Disclosed herein suspension electroplating of fine particles with metal. An electroplating operatively equipped with a cathode and anode is charged with a metallic ion-containing electrolyte and particles to be electroplated. The particles have a size of from 0.1 to 10 .mu.m. At least a part of the surface of each particle is conductive. Such a stationary circulating flow of a suspension of the particles in the electrolyte is formed in the bath that the particles are maintained in the suspended condition; the suspension is circulated substantially without coming in contact with the anode; the particles may have a chance of colliding with substantially all surface areas of the working surface of the cathode, and are repeatedly brought in collision with the cathode at a velocity with a normal component of from 0.6 to 6.0 m/min.; and a particle concentration of the suspension at the time of collision is from 30 to 55% by volume.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: March 13, 1990
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Eiki Takeshima, Kiyoshi Takatsu, Youichi Kojima, Takahiro Fujii