Shape recognition process
CA 2123530 C · Owner: Matsushita Electric Works, Ltd. · Inventors: Ikebuchi, Hiroyuki; Mitaka, Ryosuke; Fujiwara, Yoshimasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shape recognition process is arranged to represent an objective shape in a dot row on two dimensional plane and a shape model for a collation therewith of the objective shape in a geometrical shape as a set of limited numbers of nodal points and line elements connecting between the respective nodal points to set a standard value and a tolerance implicating therein the standard value with respect to a feature which is the length or gradient of the respective line elements of the shape model and to evaluate an extent of coincidence of the objective shape with the shape model on the basis of any difference from the standard value and the relationship to the tolerance of the objective shape …
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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 May 13, 1994 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2016.
- 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
Timeline From CIPO dates
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.