Silver halide color photographic material
CA 1338101 C · Owner: Fuji Photo Film Co. Ltd. · Inventors: Takahashi, Osamu; Hirano, Tsumoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A silver halide color photographic material comprising a support having thereon at least one silver halide photographic emulsion layer containing a dispersion of oleophilic fine particles obtained by emulsifing and/or dispersing a mixture solution containing at least one oil-soluble coupler which is capable of forming a dye upon coupling with on oxidation product of an aromatic amine developing agent and represented by the general formula (I) described below and at least one non-color forming oil-soluble polymer. (I) wherein Q1 represents an atomic group necessary to form a 5-membered or more nitrogen-containing heterocyclic ring containing at least one nitrogen atom together with the …
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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 March 5, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2013.
- 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.