Patents by Inventor Yoshihisa Kuwana
Yoshihisa Kuwana 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).
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Publication number: 20040110826Abstract: The present invention provides an &agr;2c-adrenoceptor antagonist comprising, as an active ingredient, a condensed-ring-pyrimidine derivative represented by general formula (I) below or a pharmaceutically acceptable salt thereof useful for treating and/or preventing various diseases induced by hyperactivity of &agr;2c-adrenoceptor (for example, Parkinson's disease, L-DOPA-induced dyskinesia, tardive dyskinesia and depression) and the like.Type: ApplicationFiled: May 28, 2003Publication date: June 10, 2004Inventors: Noriaki Uesaka, Hironori Imma, Hajime Kashima, Masako Kurokawa, Hiromi Nonaka, Tomoyuki Kanda, Yoshihisa Kuwana, Shinichiro Toki, Junichi Shimada
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Patent number: 6727259Abstract: The present invention relates to a therapeutic agent for neurodegenerative disorders, comprising a xanthine derivative represented by formula (I): or a pharmaceutically acceptable salt thereof as an active ingredient wherein X1, X2, R1, R2, R3 and R4 are herein defined.Type: GrantFiled: March 3, 2000Date of Patent: April 27, 2004Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Junichi Shimada, Masako Kurokawa, Ken Ikeda, Fumio Suzuki, Yoshihisa Kuwana
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Publication number: 20030166876Abstract: A process for the production of humanized chimera antibody, wherein the chimera antibody is produced easily without changing any of the amino acids of its mouse antibody variable region, which comprises the steps of: (1) constructing a cassette vector by inserting a cDNA coding for a heavy chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the heavy chain constant region of said cassette vector for inserting a cDNA which encodes a heavy chain variable region of nonhuman animal antibody; (2) digesting a cDNA coding for the heavy chain variable region of nonhuman animal antibody with restriction enzymes; (3) inserting said cDNA coding for the heavy chain variable region of nonhuman animal antibody into the cassette vector, using a synthetic DNA which comprises a base sequence corresponding to the 5′-end side of said heavy chain constant region of human antibody and a base sequence corresponding to the 3′-endType: ApplicationFiled: June 12, 2002Publication date: September 4, 2003Applicant: KYOWA HAKKO KOGYO CO., LTD.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Publication number: 20030158214Abstract: The present invention relates to a therapeutic agent for neurodegenerative disorders, comprising a xanthine derivative represented by formula (I): 1Type: ApplicationFiled: March 3, 2000Publication date: August 21, 2003Inventors: JUNICHI SHIMADA, MASAKO KUROKAWA, KEN IKEDA, FUMIO SUZUKI, YOSHIHISA KUWANA
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Publication number: 20030095964Abstract: A humanized chimera antibody, a pharmaceutical composition comprising a humanized chimera antibody and a pharmaceutically acceptable carrier, and a method of treating cancer which comprises administering to a patient a pharmaceutically acceptable amount of said humanized chimera antibody, are disclosed.Type: ApplicationFiled: October 8, 2002Publication date: May 22, 2003Applicant: KYOWA HAKKO KOGYO CO., LTD.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Publication number: 20030077276Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM2.Type: ApplicationFiled: July 16, 2002Publication date: April 24, 2003Applicant: KYOWA HAKKO KOGYO CO., LTD.Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Patent number: 6545000Abstract: The present invention relates to [1,2,4]triazolo[1,5-c]pyrimidine compounds represented by formula (I): wherein na and nb independently represent an integer of 0 to 4 and Q represents a hydrogen atom or 3,4-dimethoxybenzyl, or salts thereof exhibit activity as adenosine A2A receptor antagonists.Type: GrantFiled: March 22, 2001Date of Patent: April 8, 2003Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Junichi Shimada, Hironori Imma, Naoto Osakada, Shizuo Shiozaki, Tomoyuki Kanda, Yoshihisa Kuwana
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Patent number: 6495666Abstract: A humanized chimera antibody, a pharmaceutical composition comprising a humanized chimera antibody and a pharmaceutically acceptable carrier, and a method of treating cancer which comprises administering to a patient a pharmaceutically acceptable amount of the humanized chimera antibody, are disclosed.Type: GrantFiled: January 19, 2001Date of Patent: December 17, 2002Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Patent number: 6437098Abstract: A humanized chimera antibody, a pharmaceutical composition comprising a humanized chimera antibody and a pharmaceutically acceptable carrier, and a method of treating cancer which comprises administering to a patient a pharmaceutically acceptable amount of the humanized chimera antibody, are disclosed.Type: GrantFiled: January 5, 1999Date of Patent: August 20, 2002Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Patent number: 6423511Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM2.Type: GrantFiled: September 10, 1999Date of Patent: July 23, 2002Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Publication number: 20020026036Abstract: A process for the production of humanized chimera antibody, wherein the chimera antibody is produced easily without changing any of the amino acids of its mouse antibody variable region, which comprises the steps of: (1) constructing a cassette vector by inserting a cDNA coding for a heavy chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the heavy chain constant region of said cassette vector for inserting a cDNA which encodes a heavy chain variable region of nonhuman animal antibody; (2) digesting a cDNA coding for the heavy chain variable region of nonhuman animal antibody with restriction enzymes; (3) inserting said cDNA coding for the heavy chain variable region of nonhuman animal antibody into the cassette vector, using a synthetic DNA which comprises a base sequence corresponding to the 5′-end side of said heavy chain constant region of human antibody and a base sequence corresponding to the 3′-endType: ApplicationFiled: January 19, 2001Publication date: February 28, 2002Applicant: KYOWA HAKKO KOGYO CO., LTD.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Patent number: 6222035Abstract: [1,2,4]Triazolo[1,5-c]pyrimidine derivatives represented by formula (I) or pharmaceutically acceptable salts thereof are provided, which have adenosine A2A receptor antagonism and are useful for the treatment or prevention of various diseases induced by hyperactivity of adenosine A2A receptors (for example, Parkinson's disease or senile dementia): wherein R1 represents substituted or unsubstituted aryl, or the like; R2 represents hydrogen, halogen, lower alkyl, substituted or unsubstituted aryl, or the like; R3 represents hydrogen, halogen, XR10 (wherein X represents O or S; and R10 represents substituted or unsubstituted aryl, a substituted or unsubstituted aromatic heterocyclic ring, substituted or unsubstituted aralkyl, lower alkyl, or hydroxy lower alkyl), or the like; and Q represents hydrogen or 3,4-dimethoxybenzyl.Type: GrantFiled: September 23, 1999Date of Patent: April 24, 2001Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Hiroshi Tsumuki, Junichi Shimada, Hironori Imma, Akiko Nakamura, Hiromi Nonaka, Shizuo Shiozaki, Shunji Ichikawa, Tomoyuki Kanda, Yoshihisa Kuwana, Michio Ichimura, Fumio Suzuki
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Patent number: 6042828Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 GM.sub.2 respectively into an expression vector for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM.sub.2.Type: GrantFiled: June 27, 1996Date of Patent: March 28, 2000Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Patent number: 5939532Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 GM.sub.2 respectively into an expression vector for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM.sub.2.Type: GrantFiled: June 7, 1995Date of Patent: August 17, 1999Assignee: Kyowa Hakko Kogyo Co., LtdInventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Patent number: 5874255Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 GM.sub.2 respectively into an expression vector for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM.sub.2.Type: GrantFiled: May 10, 1995Date of Patent: February 23, 1999Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Patent number: 5866692Abstract: A humanized chimera antibody, a pharmaceutical composition comprising a humanized chimera antibody and a pharmaceutically acceptable carrier, and a method of treating cancer which comprises administering to a patient a pharmaceutically acceptable amount of said humanized chimera antibody, are disclosed.Type: GrantFiled: May 31, 1995Date of Patent: February 2, 1999Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Patent number: 5830470Abstract: Chimeric human antibody expression vectors are constructed by inserting the antibody 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 GM.sub.2 respectively into an expression vector for use in animal cells 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 for the production of a chimeric human antibody reacting with the ganglioside GM.sub.2.Type: GrantFiled: September 7, 1993Date of Patent: November 3, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kazuyasu Nakamura, Masamichi Koike, Kenya Shitara, Nobuo Hanai, Yoshihisa Kuwana, Mamoru Hasegawa
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Patent number: 5807548Abstract: A humanized chimera antibody, a process for its production and methods for its use are disclosed. The chimera antibody is produced without changing any amino acids of its mouse antibody variable region.Type: GrantFiled: May 31, 1995Date of Patent: September 15, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana
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Patent number: 5750078Abstract: A humanized chimera antibody, a pharmaceutical composition comprising a humanized chimera antibody and a pharmaceutically acceptable carrier, and a method of treating cancer which comprises administering to a patient a pharmaceutically acceptable amount of said humanized chimera antibody, are disclosed.Type: GrantFiled: March 21, 1995Date of Patent: May 12, 1998Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kenya Shitara, Nobuo Hanai, Mamoru Hasegawa, Hiromasa Miyaji, Yoshihisa Kuwana