Optical printer head and method of lighting up optical printer head
CA 2374034 A1 · Owner: Kusuda, Yukihisa · Inventors: Ohno, Seiji; Yamashita, Ken; Kusuda, Yukihisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical printer head having a structure of increasing an exposure and , forming pixels by exposing a photosensitive drum to light comprising a light , emitting device array having at least two light emitting spot rows and a rod , lens array for forming light spot rows by projecting light beam from the light emitting device array onto the photosensitive drum wherein the at least two , light emitting spot rows have the same pitch in the main scanning direction parallel to the rotation direction of the drum and light emitting spots in , each light emitting spot row are arranged to align in the sub-scanning direction perpendicular to the rotation direction of the drum.
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 March 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2023.
- 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.