Patents by Inventor Takeno Hidekazu

Takeno Hidekazu 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).

  • Peptide, process for preparation thereof and use thereof
    Patent number: 4725582
    Abstract: The invention concerns peptides, having the pharmaceutical property of enhancing the immune response, having the structure: ##STR1## wherein R.sup.1 is alkanoyl,R.sub.b.sup.1 is hydrogen, methyl, isopropyl, hydroxymethyl, protected hydroxymethyl or benzyl,R.sup.2 is hydrogen, carboxy, protected carboxy or a group of the formula: ##STR2## wherein R.sub.a.sup.2 is mono- or di-carboxy (or protected carboxy) lower alkyl or ar(carboxy or protected carboxy) lower alkyl whose aryl moiety is substituted by hydroxy or not substituted,R.sub.b.sup.2 is hydrogen or lower alkyl,R.sup.p is hydrogen, carboxy or protected carboxy,R.sup.q is carboxy, protected carboxy or a group of the formula ##STR3## wherein R.sub.a.sup.2 and R.sub.b.sup.2 are each as defined above, R.sup.r is hydrogen or amino protective group,m is an integer 1 to 3, andn is an integer 1.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: February 16, 1988
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Yoshihiko Kitaura, Osamu Nakaguchi, Keiji Hemmi, Matsuhiko Aratani, Takeno Hidekazu, Satoshi Okada, Hirokazu Tanaka, Masashi Hashimoto, Yoshio Kuroda, Eiko Iguchi, Masanobu Kohsaka, Hatsuo Aoki, Hiroshi Imanaka