Heater and heating/fixing unit comprising the same
CA 2189934 C · Owner: Nakata, Hirohiko · Inventors: Natsuhara, Masuhiro; Nakata, Hirohiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic heater fixes a toner image which is formed on a surface of a paper. A ceramic substrate is arranged to face the surface of the paper provided with the toner image. A heat generator is formed on a surface of the ceramic substrate which is opposite to that facing the surface of the paper. Thus, a structure of a heater which can be entirely uniformly heated to be capable of increasing a heating rate is provided with excellent fixability for a toner image.
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 8, 1996 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2018.
- 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.