Photoelectric transducer apparatus
CA 1333091 C · Owner: Harada, Tadanori · Inventors: Ohzu, Hayao; Harada, Tadanori; Ishizaki, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a photoelectric transducer apparatus having a plurality of photoelectric transducer elements each having a capacitor electrode formed on a control electrode of a corresponding semiconductor transistor the apparatus being adapted to sequentially select each element in units of lines, to control a potential of the control electrode of the selected photoelectric transducer element through the capacitor electrode to store carriers in the control electrode region and to read out a signal component corresponding to the amount of charge, the apparatus includes: optical information storing means for storing optical information read out from the photoelectric transducer element; and dark voltage …
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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
- Granted November 15, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 15, 2011.
- 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.