Amorphous alloys superior in mechanical strength, corrosion resistance and formability
CA 2020338 C · Owner: Masumoto, Tsuyoshi · Inventors: Yamaguchi, Hitoshi; Takeda, Hideki; Masumoto, Tsuyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an amorphous alloy having superior mechanical strength corrosion, resistance and formability, at a relatively low cost. The amorphous alloy is a composition represented by the general formula: Al100-x-yMxLny wherein M is at least one element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co Ni, Cu, Zr, Nb, Mo, Hf, Ta and W; Ln is at least one element selected from the group consisting of Y La, Ce, Nd, Sm, Gd, Tb, Dy, Ho and Yb or misch metal (Mm) which is a combination of rare earth elements; and x and y are in atomic percentages: 0 < x ~ 55 and 30 ~ y ~ 90 preferably 0 < x ~ 40 and 35 ~ y ~ 80, and more preferably 5 < x ~ 40 and 35 ~ y ~ 70, the …
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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 July 3, 1990 and granted February 10, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 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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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.