Method of measuring plating amount and plating film composition of plated steel plate and apparatus therefor
CA 2009698 C · Owner: Imai, Kiyotaka · Inventors: Hattori, Tadaaki; Nishifuji, Katsuyuki; Kato, Hiroharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The plating amount and composition of a plated steel plate are measured by determining a theoretical relation for an intensity at two different lightreceiving angles of K-series fluorescent X-rays of analysis target elements reflected by the plate when monochromatized X-rays are radiated onto the plate at two incident angles, measuring a fluorescent X-ray intensity by using standard samples having known plating amounts and compositions, under the same conditions as for obtaining the theoretical relation and calculating, a conversion coefficient for converting the measured value into a theoretical value by the theoretical relation, measuring a fluorescent X-ray intensity obtained from a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 9, 1990 and granted March 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.