Surface inspection apparatus for objects
CA 1249878 A · Owner: Hajime Industries Ltd. · Inventors: Yoshida, Hajime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surface inspection apparatus for an object is disclosed which has a photo-electric conversion device a, lens system combined with the photo-electric conversion device for making an image of the surface of an object to be inspected which is not flat as a flat image on the photo-electric conversion device, and an inspection device for processing an output video signal from the photo-electric conversion device to judge whether the inspected surface is good or not.
Read the whole patent
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
- Granted February 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2006.
- 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.