Patents by Inventor Kiyoji Makino

Kiyoji Makino 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).

  • Thermosetting resin compositions having excellent high temperature characteristics
    Patent number: 4128598
    Abstract: Thermosetting resin compounds produced by polymerizing together bismaleimide expressed by the general structural formula: ##STR1## where: R.sub.1 is hydrogen or alkyl group,R.sub.2 is --O--, --CH.sub.2 --, --SO.sub.2 -- or --S--S--, andR.sub.3 is hydrogen, alkyl group or chlorine;Aminophenol expressed by the general structural formula: ##STR2## where R.sub.4 is hydrogen, halogens or alkyl group; A SPECIFIED EPOXY COMPOUND; AND IMIDAZOLE WHICH IS EXPRESSED BY THE GENERAL STRUCTURAL FORMULA: ##STR3## where R.sub.7 to R.sub.10 are hydrogen or alkyl group and R.sub.7 and R.sub.8 may be benzyl or phenyl, and which may be added, if necessary.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: December 5, 1978
    Assignee: Toshiba Chemical Products Co. Ltd.
    Inventors: Kiyoji Makino, Tsutomu Ohkawa