Patents by Inventor Masamichi Koike

Masamichi Koike 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: 8143058
    Abstract: A human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of human CC chemokine receptor 4 (CCR4) but does not react with a human blood platelet; a human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of CCR4 and has a cytotoxic activity against a CCR4-expressing cell; and a medicament, a therapeutic agent or a diagnostic agent comprising at least one of the antibodies and the antibody fragments thereof as an active ingredient.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: March 27, 2012
    Assignee: Kyowa Hakko Kirin Co., Ltd
    Inventors: Kenya Shitara, Kazuyasu Nakamura, Emi Hosaka, Akiko Shimizu, Masamichi Koike
  • Publication number: 20120020962
    Abstract: The present invention relates to the method for depleting in vivo regulatory T cell, the method for suppressing IL-10 producing activity of regulatory T cell, the method for treating diseases in which pathologic conditions are deteriorated by regulatory T cell and the method for enhancing tumor immunity which comprises administering to a patient a monoclonal antibody which specifically binds to human CC chemokine 4 (CCR4) or the antibody fragment thereof.
    Type: Application
    Filed: September 6, 2011
    Publication date: January 26, 2012
    Applicant: KYOWA HAKKO KIRIN CO., LTD
    Inventors: Ryuzo UEDA, Kenya SHITARA, Shiro AKINAGA, Rinpei NIWA, Masamichi KOIKE
  • Publication number: 20110059524
    Abstract: A human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of human CC chemokine receptor 4 (CCR4) but does not react with a human blood platelet; a human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of CCR4 and has a cytotoxic activity against a CCR4-expressing cell; and a medicament, a therapeutic agent or a diagnostic agent comprising at least one of the antibodies and the antibody fragments thereof as an active ingredient.
    Type: Application
    Filed: October 13, 2010
    Publication date: March 10, 2011
    Applicant: KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Kenya SHITARA, Kazuyasu Nakamura, Emi Hosaka, Akiko Shimizu, Masamichi Koike
  • Patent number: 7842797
    Abstract: A human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of human CC chemokine receptor 4 (CCR4) but does not react with a human blood platelet; a human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of CCR4 and has a cytotoxic activity against a CCR4-expressing cell; and a medicament, a therapeutic agent or a diagnostic agent comprising at least one of the antibodies and the antibody fragments thereof as an active ingredient.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: November 30, 2010
    Assignee: Kyowa Hakko Kirin Co., Ltd.
    Inventors: Kenya Shitara, Kazuyasu Nakamura, Emi Hosaka, Akiko Shimizu, Masamichi Koike
  • Publication number: 20100291073
    Abstract: The present invention relates to a method of reducing the numbers of eosinophils in a human subject comprising administration to a subject an IL-5R binding molecule that comprises (a) a region that specifically binds to the IL-5R and (b) an immunoglobulin Fc region. In a specific embodiment, a method of the invention reduces the number of eosinophils in blood, bone marrow, gastrointestinal tract (e g, esophagus, stomach, small intestine and colon), or lung.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 18, 2010
    Applicants: MEDIMMUNE, LLC, BIOWA, INC.
    Inventors: Masamichi Koike, George L. Spitalny, Alistair Wheeler, Barbara White
  • Publication number: 20100239094
    Abstract: A computer readable medium stores a program causing a computer to execute a key generating processing. The computer generates a signatory private key which is used in an electronic signature, a signatory public key, a signatory public key certificate, a certification public key which is used when recording the signatory private key in a PKI card and a certification private key, transmits the certification private key to the PKI card via a secure communication path, and transmits an encoded signatory key obtained by encoding the signatory public key certificate and the signatory private key using the certification public key to the PKI card via the secure communication path or a non-secure communication path.
    Type: Application
    Filed: September 14, 2009
    Publication date: September 23, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Masamichi KOIKE
  • Publication number: 20100150917
    Abstract: The present invention relates to the method for depleting in vivo regulatory T cell, the method for suppressing IL-10 producing activity of regulatory T cell, the method for treating diseases in which pathologic conditions are deteriorated by regulatory T cell and the method for enhancing tumor immunity which comprises administering to a patient a monoclonal antibody which specifically binds to human CC chemokine 4 (CCR4) or the antibody fragment thereof.
    Type: Application
    Filed: October 5, 2009
    Publication date: June 17, 2010
    Applicant: KYOWA HAKKO KIRIN CO., LTD.
    Inventors: Ryuzo UEDA, Kenya Shitara, Shiro Akinaga, Rinpei Niwa, Masamichi Koike
  • Publication number: 20090227012
    Abstract: A human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of human CC chemokine receptor 4 (CCR4) but does not react with a human blood platelet; a human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of CCR4 and has a cytotoxic activity against a CCR4-expressing cell; and a medicament, a therapeutic agent or a diagnostic agent comprising at least one of the antibodies and the antibody fragments thereof as an active ingredient.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 10, 2009
    Applicant: KYOWA HAKKO KOGYO CO., LTD.
    Inventors: Kenya SHITARA, Kazuyasu Nakamura, Emi Hosaka, Akiko Tanaka, Masamichi Koike
  • Publication number: 20090185713
    Abstract: An information processing apparatus includes an image data generating unit, a document image generating unit, a signature generating unit, a code image generating unit and a print image generating unit. The image data generating unit generates visually confirmable document image data based on an electronic document to be signed. The document image generating unit generates a document image to be signed including the document image data and error correction data for respective character images contained in the document image data. The signature generating unit generates a digital signature of the document image to be signed. The code image generating unit generates a code image based on document-related information including information relating to the document image to be signed and the digital signature of the document image to be signed. The print image generating unit synthesizes the document image to be signed and the code image to generate a print image.
    Type: Application
    Filed: August 22, 2008
    Publication date: July 23, 2009
    Applicant: FUJIXEROX CO., LTD.
    Inventor: Masamichi KOIKE
  • Patent number: 7504104
    Abstract: A human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of human CC chemokine receptor 4 (CCR4) but does not react with a human blood platelet; a human CDR-grafted antibody or the antibody fragment thereof which specifically reacts with the extracellular region of CCR4 and has a cytotoxic activity against a CCR4-expressing cell; and a medicament, a therapeutic agent or a diagnostic agent comprising at least one of the antibodies and the antibody fragments thereof as an active ingredient.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 17, 2009
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kenya Shitara, Kazuyasu Nakamura, Emi Hosaka, Akiko Tanaka, Masamichi Koike
  • Patent number: 7404953
    Abstract: The present invention provides an apoptosis inducer and a therapeutic agent for eosinophilic diseases which comprises, as an active ingredient, an antibody which reacts specifically with eosinophils and induces apoptosis of eosinophils; and a method for inducing eosinophil apoptosis using the antibody, and a method for specifically reducing or removing eosinophils in peripheral blood or tissues using the antibody.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: July 29, 2008
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Emi Hosaka, Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai
  • Publication number: 20080095765
    Abstract: The present invention provides an antibody composition comprising an antibody molecule which specifically binds to human interleukin-5 receptor ? chain and has complex type N-glycoside-linked sugar chains in the Fc region, wherein the complex type N-glycoside-linked sugar chains have a structure in which fucose is not bound to N-acetylglucosamine in the reducing end in the sugar chains; a transformant which produces the antibody composition; a process for producing the antibody composition; and a pharmaceutical composition comprising the antibody composition.
    Type: Application
    Filed: April 5, 2007
    Publication date: April 24, 2008
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeru Ilda, Mitsuo Satoh, Miho Urakubo, Masako Wakitani, Kazuhisa Uchida, Rinpei Niwa, Kenya Shitara, Masamichi Koike
  • 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: 20060034841
    Abstract: The present invention relates to the method for depleting in vivo regulatory T cell, the method for suppressing IL-10 producing activity of regulatory T cell, the method for treating diseases in which pathologic conditions are deteriorated by regulatory T cell and the method for enhancing tumor immunity which comprises administering to a patient a monoclonal antibody which specifically binds to human CC chemokine 4 (CCR4) or the antibody fragment thereof.
    Type: Application
    Filed: June 6, 2005
    Publication date: February 16, 2006
    Applicant: KYOWA HAKKO KOGYO CO., LTD.
    Inventors: Ryuzo Ueda, Kenya Shitara, Shiro Akinaga, Rinpei Niwa, Masamichi Koike
  • 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
  • Publication number: 20050226867
    Abstract: The present invention provides an antibody composition comprising an antibody molecule which specifically binds to human interleukin-5 receptor ? chain and has complex type N-glycoside-linked sugar chains in the Fc region, wherein the complex type N-glycoside-linked sugar chains have a structure in which fucose is not bound to N-acetylglucosamine in the reducing end in the sugar chains; a transformant which produces the antibody composition; a process for producing the antibody composition; and a pharmaceutical composition comprising the antibody composition.
    Type: Application
    Filed: October 7, 2004
    Publication date: October 13, 2005
    Applicant: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Shigeru Iida, Mitsuo Satoh, Miho Urakubo, Masako Wakitani, Kazuhisa Uchida, Rinpei Niwa, Kenya Shitara, Masamichi Koike
  • Patent number: 6872392
    Abstract: Chimeric human antibody expression vectors are constructed by inserting the heavy chain variable region-encoding cDNA and antibody light chain variable region-encoding cDNA isolated from hybridomas producing a mouse or rat monoclonal antibody reacting with the ganglioside GM2 respectively into an expression vector which contains the human antibody heavy chain constant region- or human antibody light chain constant region-encoding cDNA. The expression vectors are introduced into animal cells and the transformant thus obtained is cultured to produce a chimeric human antibody reacting with the ganglioside GM2. In contrast to mouse monoclonal antibodies, the chimeric human antibodies of the invention will not cause anti-mouse immunoglobulin antibody production in the patient's body but show a prolonged blood half-life, with a reduced frequency of adverse effects, so that it can be expected to be superior to mouse monoclonal antibodies in the efficacy in the treatment of human cancer, for instance.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: March 29, 2005
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
  • Publication number: 20040136996
    Abstract: The present invention provides an apoptosis inducer and a therapeutic agent for eosinophilic diseases which comprises, as an active ingredient, an antibody which reacts specifically with eosinophils and induces apoptosis of eosinophils; and a method for inducing eosinophil apoptosis using the antibody, and a method for specifically reducing or removing eosinophils in peripheral blood or tissues using the antibody.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 15, 2004
    Inventors: Emi Hosaka, Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai