Photosensitive body for electrophotography
CA 2136396 A1 · Owner: Sato, Katsuhiro · Inventors: Nogami, Sumitaka; Sato, Katsuhiro; Kitazawa, Michihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A positively charged organic photosensitive body is provided, the photosensitive body being free from public hazards, and being highly sensitive and highly durable. The photosensitive body has a photosensitive layer of a laminated structure on a conductive substrate. The photosensitive layer has a charge transport layer (I) having hole mobility, a charge generation layer and a, charge transport layer (II) containing a curing product of a doped amino resin and having electron mobility. The charge transport layer (I), the charge generation layer and the charge transport layer (II) are laminated in this order on the conductive substrate. Various suitable substances may be added to the charge …
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
- Filed November 22, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 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.