Zinc oxide voltage-nonlinear resistor
CA 1045369 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Nagasawa, Masahiro; Nishi, Kunio; Abe, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A voltage-dependent resistor (varistor) of the bulk type comprising a sintered body consisting essentially of, as a main constituent, InO and additives of various metal oxides and further containing an additive of at least one of Al2O3, In2O3, Ga2O3 provide much improved characteristics especially superior limiting voltage ratio surge resistance, and life of the varistor.
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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.