Thermal head apparatus
CA 1078004 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Oda, Fujio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermal head apparatus is disclosed which comprises a heating resistor block provided with a plurality of heating resistors divided into plural groups, a diode array block provided with a plurality of diodes corresponding in number to the plurality of heating resistors, a conductor block provided with selective conductors for supplying selectively to the heating resistors, and a film carrier or the like provided with a plurality of conductors for connecting the heat resistors with the diodes and the diodes with the selective conductors. Thus, it is made possible as a result of forming each part in a block to make the apparatus compact and the manufacturing cost low.
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
- Granted May 20, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 1997.
- 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.