Improving image sharpness by applying uv light to a dye sensitized photoconductive layer
CA 1101262 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Yasuba, Hiroshi; Yuri, Osamu; Umeda, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Method of improving image sharpness or image resolution on a dye sensitized electrophotographic photosensitive plate to be negatively charged before image light exposure and with use of positively charged toners the, method comprising applying ultraviolet light to the surface of the dye-sensitized photoconductive layer of the plate before the negative charging. Thereby, it becomes possible to use positively charged toners with excellent resultant image sharpness or resolution.
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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 May 19, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 1998.
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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.