Image formation by transfer of a vaporizable dye former and subsequent color development
CA 1163851 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Takashima, Yuji; Shimotsuma, Wataru; Yubakami, Keiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, An image forming process comprising arranging on a support member, in accordance with image signals image, forming particles containing dye former that develops its color in reaction with a color developing agent and, heat-transferring the dye former from the particles to an image receiving substrate. After the heat-transfer step the color developing agent is caused to adhere to the dye former transferred onto the substrate to provide colored images. The advantages are an increase in the choice of usable image receiving substrates and color development agents; avoidance of fogging; maintenance of color purity; and avoidance of pollution by re-evaporation of the dye former.
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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 20, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2001.
- 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
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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.