The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1977
Filed:
Oct. 14, 1975
Applicant:
Inventors:
Toshio Irie, Chiba, JA;
Toshikuni Tanda, Akashi, JA;
Tomoyuki Ichi, Ashiya, JA;
Toshio Sadayori, Chiba, JA;
Assignee:
Kawasaki Steel Corporation, Kobe, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B05D / ;
U.S. Cl.
CPC ...
427126 ; 148-62 ; 427104 ; 4273 / ;
Abstract
Coated electrical steel sheets having excellent punchability, weldability and insulation resistance are produced by applying an electrical steel sheet with a treating dispersion obtained by compounding the particle separating resin emulsion and the compatible resin to an aqueous solution containing chromic acid in the particularly defined amount and baking the thus applied steel sheets. To the treating dispersion may be added saccharides or polyhydric alcohols as a reducing agent or boric acid or phosphoric acid.