Additive for battery and electric double-layered capacitor
CA 2442312 A1 · Owner: Ogino, Takao · Inventors: Otsuki, Masashi; Ogino, Takao; Endo, Shigeki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An additive for a cell and an electric double-layered capacitor which enables manufacture of a cell excellent in combustion inhibiting effect and in lowtemperature discharge characteristics and high-temperature reserve characteristics and low in its interfacial resistance of the electrolyte while maintaining necessary cell characteristics by adding this additive to the electrolyte, or manufacture of an electric double-layered capacitor excellent in combustion inhibiting effect and in low-temperature discharge characteristics and low in its interfacial resistance of the electrolyte while maintaining good electric characteristics such as the electric conductivity and the cell and the …
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 March 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2024.
- 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.