Solid-state imaging device and production method therefor
CA 2462945 A1 · Owner: Toppan Printing Co. Ltd. · Inventors: Ogata, Keisuke; Fukuyoshi, Kenzo; Ishimatsu, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid-state imaging device comprising a plurality of photoelectric conversion elements disposed two-dimensionally and a plurality of almost semispherical micro-lenses for coating respective photoelectric conversion elements. A micro-lens has a multi-layer structure comprising at least a transparent resin upper layer forming at least part of an almost semispherical shape, and a colored lower layer provided on the photoelectric conversion element side of the transparent resin upper layer and interfaced with the transparent resin upper layer in such a form as to extend along the surface of a photoelectric conversion element e.g. in a flat form.
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 July 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2025.
- 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.