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Inventor: Toshihiro Okai


Address: Amagasaki, JA
No. of patents: 1
Last patent issue date: 12/07/1976

NumberTitleIssue Date
3996072Phosphate coating process and control of the phosphate coating solution
A phosphate coating solution for forming coatings on a metal surface is contacted with an anion-exchanger loaded or contacted with nitrite ions, whereby the nitrate ions present in the coating solution are replaced by the nitrite ions. This process permit... 		12/07/1976
 
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