Patents by Inventor Akiyoshi Inubuse

Akiyoshi Inubuse 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).

  • Method for inhibiting corrosion of metal
    Patent number: 3940248
    Abstract: A corrosion inhibiting composition which comprises an aqueus medium having dissolved therein an effective amount of at least one of water-soluble 8-hydroxy-s-triazolo[b]pyridazine compounds and watersoluble salts thereof, said water-soluble 8-hydroxy-s-triazolo[b]pyridazine compound having the formula of ##SPC1##Wherein R.sub.1 is hydrogen atom or an alkyl group having 1 to 4 carbon atoms: R.sub.2 is hydrogen atom, an alkyl group having 1 to 10 carbon atoms, phenyl, hydroxyphenyl, nitrophenyl, benzyl, hydroxybenzyl or nitrobenzyl group; and a method for inhibiting corrosion of a metal which comprises contacting a metal with said composition.
    Type: Grant
    Filed: June 13, 1973
    Date of Patent: February 24, 1976
    Assignee: Otsuka Kagaku Yakuhin Kabushiki Kaisha
    Inventors: Hideo Yamaguchi, Takashi Kawasaki, Shigeo Takahashi, Akiyoshi Inubuse