Dot percentage measuring device
CA 1136993 A · Owner: Dai Nippon Insatsu Kabushiki Kaisha · Inventors: Mitsuhashi, Yuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In printing with dots a dot percentage is one of, the important factors which determine the quality of a printed matter, and accordingly it is essential to control the dot percentage throughout the printing process from makeup to printing. In order to readily and quickly measure the dot percentage with high accuracy a microscope section and a display section are formed as one unit, and a correction circuit for light transmittivity is provided.
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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.