Patents by Inventor Yoshikatsu Hirai

Yoshikatsu Hirai 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: 6107465
    Abstract: A homogeneous interleukin 1.beta. (IL-1.beta.), its derivative having a modified amino acid sequence of IL-1.beta., a gene coding for said derivative, medical composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.beta. and the derivative.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: August 22, 2000
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 5849282
    Abstract: This invention provides an anti-tumor agent and a method for treating a tumor wherein gamma-interferon and interleukin-1 are used as active ingredients.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: December 15, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Kazuyoshi Kawai, Yasue Konishi, Satoru Nakai, Yoshikatsu Hirai
  • Patent number: 5847098
    Abstract: A homogeneous interleukin 1.beta. (IL-1.beta.), its derivative having a modified amino acid sequence of IL-1.beta., a gene coding for said derivative, medical composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.beta. and the derivative.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 8, 1998
    Assignee: Otsuka Pharmaceutcal Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 5837230
    Abstract: This invention provides medical uses of a M-CSF, particularly a method and composition for treating inflammatory disease and allergy using natural M-CSF or recombinant M-CSF or the derivatives thereof.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 17, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Masayuki Takahashi, Hiroyuki Ichikawa, Yoshikatsu Hirai
  • Patent number: 5756675
    Abstract: The present invention provides a medicament for treating thrombocytopenia comprising as an active component at least one polypeptide selected from IL-1 and derivative thereof and a Il-1.alpha. derivative having an amino acid sequence of the formula (.alpha.) which is so modified as to fulfill at least one of the requirements of: deletion of the 16-position Arg; replacement of the 16-position Arg by another amino acid residue; deletion of the sequence of the 1-position Ser to the 14-position Phe and deletion of the amino acid sequence of the 1-position Ser to the 15-position Met.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: May 26, 1998
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yoshikatsu Hirai, Satoru Nakai, Koutoku Aihara, Kazuyoshi Kawai, Mayumi Kaneta, Takashi Kamogashira, Yoshihiro Masui
  • Patent number: 5702698
    Abstract: Methods are disclosed for promoting production of colony stimulating factor and inhibiting growth of Meth A tumor cells comprising administering a pharmaceutically effective amount of modified IL-1.alpha. to a subject.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 30, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 5650297
    Abstract: This invention relates to a biologically active recombinant human M-CSF obtained by expressing a human M-CSF gene coding for the amino acid sequence of the formula (1) in its entirety or devoid of a portion thereof; a process for preparing the recombinant human M-CSF; an expression plasmid containing the human M-CSF gene defined above; and a transformant haboring the above expression plasmid.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: July 22, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masayuki Takahashi, Tohru Hirato, Satoru Nakai, Yeong-Man Hong, Naomi Kouno, Yoshikatsu Hirai
  • Patent number: 5543140
    Abstract: Methods for stimulating immunity, inhibiting tumor growth, promoting production of a cytokine, and preventing or inhibiting radiation injury by administration of Interleukin-1.alpha. (IL-1.alpha.) derivatives, are disclosed.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: August 6, 1996
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 5371204
    Abstract: An interleukin-1.alpha. (IL-1.alpha.) derivative having a modified amino acid sequence of IL-1.alpha., a gene coding for said derivative, medicinal composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.alpha..
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 6, 1994
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 5348858
    Abstract: The present invention provides a monoclonal antibody characterized in that the antibody has specific reactivity on human IL-1.beta., and a process for producing the antibody. The invention also provides a method for detection of biologically active human IL-1.beta..
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: September 20, 1994
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Setsuyoshi Uetsuki, Osamu Sato, Yasuo Nakayama, Yoshikatsu Hirai
  • Patent number: 5342615
    Abstract: Interleukin-1.alpha. (IL-1-.alpha.) and derivatives, and their pharmaceutical compositions for use in treating arthritis or inflammation.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: August 30, 1994
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Yoshikatsu Hirai
  • Patent number: 5342614
    Abstract: Interleukin-1.beta. (IL-1.beta.) and derivatives, and their pharmaceutical compositions for use in treating arthritis or inflammation.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: August 30, 1994
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Yoshikatsu Hirai
  • Patent number: 5217714
    Abstract: A method for testing the inducibility of the hypothalamus to effect the secretion of andrenocorticotropic hormone comprising the steps of:(a) administering to a test subject a pharmaceutically effective amount of a derivative of human IL-1.beta. selected from the group consisting of human IL-1.beta. [7-153], human IL-1.beta. [1-148], human IL-1.beta. [Gly.sup.4 ], human IL-1.beta. [Leu.sup.93 ] and human IL-1.beta. [des Arg.sup.98]; and(b) measuring an increase in blood levels of at least one of adrenocorticotropic hormone, cortisol and corticotropin-releasing hormone,wherein the degree of increase in said blood levels of at least one of adrenocorticotropic hormone, cortisol and corticotropin-releasing hormone, corresponds to the degree of inducibility of the hypothalamus and is not substantially due to the induction of fever.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: June 8, 1993
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Hiroo Imura, Junichi Fukata, Yoshikatsu Hirai
  • Patent number: 5120534
    Abstract: The present invention provides a medicament for treating thrombocytopenia comprising as an active component at least one polypeptide selected from IL-1 and derivative thereof and a IL-1.alpha. derivative having an amino acid sequence of the formula (.alpha.) which is so modified as to fulfill at least one of the requirements of: deletion of the 16-position Arg; replacement of the 16-position Arg by another amino acid residue; deletion of the sequence of the 1-position Ser to the 14-position Phe and deletion of the amino acid sequence of the 1-position Ser to the 15-position Met.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: June 9, 1992
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yoshikatsu Hirai, Satoru Nakai, Koutoku Aihara, Kazuyoshi Kawai, Mayumi Kaneta, Takashi Kamogashira, Yoshihiro Masui
  • Patent number: 5008374
    Abstract: An interleukin-1.alpha. (IL-1.alpha.) derivative having a modified amino acid sequence of IL-1.alpha., a gene coding for said derivative, medicinal composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.alpha..
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: April 16, 1991
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 4898818
    Abstract: This invention provides an antitumor active substance GIF, a process for preparing the same, an antitumor composition containing the substance, a gene coding for GIF, a vector containing the gene and a recombinant microorganism, the substance GIF comprises as its component protein polypeptide A of the following primary structure. ##STR1## wherein X is Cys or Ser and Z is H or a peptide represented by the amino acid sequence ##STR2## or a peptide having the above sequence wherein at least one amino acid is removed from the N terminal or an amino acid.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: February 6, 1990
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Satoru Nakai, Mayumi Kaneta, Yoshikazu Kikumoto, Yeong-Man Hong, Kazuyoshi Kawai, Setsuko Takegata, Kiyoshi Ishii, Yasuo Yanagihara, Yoshikatsu Hirai
  • Patent number: 4675291
    Abstract: This invention provides a novel cultured cell line which is derived from human T leukemic cells and which produces a colony-stimulating factor (CSF). This invention also provides a process for preparing such human cultured cell line, and a process of producing a CSF from such cell line.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: June 23, 1987
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yuichi Yamamura, Tadamitsu Kishimoto, Satoru Nakai, Yoshikatsu Hirai