Patents by Inventor Kenichi Nunami

Kenichi Nunami 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).

  • Imidazole-containing peptides having immunomodulatory activity
    Patent number: 5202312
    Abstract: Imidazole-containing peptide of the formula: ##STR1## wherein R.sup.1 is a branched alkyl group, a branched alkyloxy group or an aryl-substituted lower alkyloxy group, R.sup.2 and R.sup.4 are the same or different and each is hydrogen atom or a lower alkyl group, R.sup.3 and R.sup.5 are a phenyl-substituted lower alkyl group, R.sup.6 is hydrogen atom or a lower alkoxycarbonyl group, R.sup.7 is hydrogen atom or a nitrogen-containing heterocyclic group-substituted lower alkylthio group, X.sup.1 and X.sup.2 are the same or different and each is ##STR2## A is a lower alkylene group which may be substituted with a substituent selected from the group consisting of a lower alkoxy group, hydroxymethyl group and a group of the formula: ##STR3## and R.sup.8 and R.sup.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 13, 1993
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Kazuo Matsumoto, Kimiaki Hayashi, Kenichi Nunami, Tadashi Sato, Isao Takata