Patents by Inventor Jajimu Shimizu

Jajimu Shimizu 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).

  • Process for preparing metal salts of alkyl phosphates
    Patent number: 4163018
    Abstract: A process for preparing metal salts of alkyl phosphate of either one of the formulae: ##STR1## WHICH COMPRISES REACTING AN ALKYL PHOSPHATE OF EITHER ONE OF THE FORMULAE: ##STR2## in the form of its alkali metal salt with a metal salt of the formula: M.sub.n X.sub.m in an aqueous medium at a temperature of from about 50.degree. to 80.degree. C. (wherein R is an alkyl group of not less than 12 carbon atoms, M is an alkaline earth metal, aluminum or zinc, X is halogen ion, sulfate ion or nitrate ion, l is an integer corresonding to the atomic valency of M, r is an integer of 0, 1 or 2, m is an integer of 1, 2 or 3 and n is an integer of 1 or 2).
    Type: Grant
    Filed: December 13, 1977
    Date of Patent: July 31, 1979
    Assignee: Sakai Chemical Industry Company, Ltd.
    Inventors: Fusao Tada, Jajimu Shimizu, Tsutomu Asaoka, Fuminori Matsumoto