Solid electrolyte capacitor and manufacturing method therefor
CA 2007997 C · Owner: Sanyo Electric Co. Ltd. · Inventors: Kakuma, Kenji; Niwa, Shinichi; Mizutomi, Katsunori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a solid electrolyte capacitor, an improvement wherein r.he solid electrolyte is a mixture of at least two kinds of 7,7,8,8-tetracyanoquinodimethane complexes having rations different from each other which is obtained by cooling the mixture in a liquid state, the mixture being so stable to a high heat applied to the capacitor upon mounting the same on a circuit board using reflow solder. Further a, method for aging solid electrolyte capacitors is also disclosed wherein a higher aging temperature is employed.
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 January 17, 1990 and granted March 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2012.
- 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.