A rechargeable lithium battery and an electrode therefor
CA 2388013 A1 · Owner: Yoshida, Toshikazu · Inventors: Yagi, Hiromasa; Kato, Yoshio; Fujitani, Shin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrode for a lithium secondary cell characterized in that an active material thin film absorbing/desorbing lithium such as a microcrystalline silicon thin film or an amorphous silicon thin film is deposited on both sides of a platelike current collector.
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 October 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2022.
- 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.