Patents by Inventor Kenichi Imagawa

Kenichi Imagawa 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).

  • Human leukemia virus-related peptides, a process for production thereof, antibodies of the peptides and a process for production of the antibodies
    Patent number: 4572800
    Abstract: An antibody of a human leukemia virus-related peptide obtained by collecting an antibody produced in a mammal body by administering to the mammal an antigen prepared by reacting a human leukemia virus-related peptide represented by formula (1):R-Pro-Val-Met-His-Pro-His-Gly-Ala-Pro-OH (1)whereinR is a hydrogen atom or a group shown by formula, H-Tyr-;as a hapten, with a carrier in the presence of a hapten-carrier binding agent.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: February 25, 1986
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Fumio Shimizu, Tetsuya Tachikawa, Nobuhiro Ikei, Atunari Noda, Etsuro Hashimura, Kenichi Imagawa
  • Human leukemia virus-related peptides, antibodies of the peptides and a process for production of the antibodies
    Patent number: 4525300
    Abstract: An antibody of a human leukemia virus-related peptide obtained by collecting an antibody produced in a mammal body by administering to the mammal an antigen prepared by reacting a human leukemia virus-related peptide selected from the group consisting of:(a) a peptide represented by formula (1):H-Tyr-Val-Glu-Pro-Thr-Ala-Pro-Gln-Val-Leu-H (1)(b) a peptide represented by formula (2):R-Ile-Pro-His-Pro-Lys-Asn-Ser-Ile-Gly-Gly-Glu-Val-OH (2)wherein R is the same as drefined above;(c) a peptide represented by formula (3):R-Thr-Trp-Thr-Pro-Lys-Asp-Lys-Thr-Lys-Val-Leu-OH (3)wherein R is the same as defined above;(d) a peptide represented by formula (4):H-Val-Val-Gln-Pro-Lys-Lys-Pro-Pro-Pro-Tyr-OH (4)(e) a peptide represented by formula (5):R-Met-Gly-Gln-Ile-Phe-Ser-Arg-Ser-Ala-Ser-Pro-OH (5)wherein R is the same as defined above; and(f) a peptide represented by formula (6):H-Tyr-Pro-Glu-Gly-Thr-Pro-Lys-Asp-Pro-Ile-Leu-Arg-Ser-Leu-OH (6)as a hapten, with a carrier in the presence of a hapten-carrier binding agent.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: June 25, 1985
    Assignees: Japanese Foundation for Cancer Research, Otsuka Pharmaceutical Co., Ltd.
    Inventors: Mitsuaki Yoshida, Haruo Sugano, Fumio Shimizu, Kenichi Imagawa
  • Human interferon-related peptides, antigens, antibodies and process for preparing the same
    Patent number: 4474754
    Abstract: Human interferons related peptides and derivatives thereof, antigens, antibodies prepared therefrom, immobilized antibodies to be used for affinity chromatography, and novel method for assaying human interferons by using said affinity chromatography.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: October 2, 1984
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Fumio Shimizu, Yasukazu Ohmoto, Kenichi Imagawa