Patents by Inventor Makoto Sunagawa

Makoto Sunagawa 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).

  • 2-Morpholine containing methano or ethano anthracene compounds
    Patent number: 4045560
    Abstract: Novel morpholine compounds of the formula: ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.5 alkenyl, aryl(C.sub.1 -C.sub.4)alkyl or (C.sub.3 -C.sub.6)cycloalkyl(C.sub.1 -C.sub.4)alkyl and n represents 1 or 2, and their non-toxic salts, which are useful as antidepressants and can be produced by various methods.
    Type: Grant
    Filed: July 7, 1976
    Date of Patent: August 30, 1977
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Sunagawa, Hiromi Sato, Junki Katsube, Hisao Yamamoto