Fuel cell
CA 2364303 A1 · Owner: Taniguchi, Takumi · Inventors: Takahashi, Tsuyoshi; Hamada, Hitoshi; Tsugane, Takahide
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel cell wherein (a) an MEA and a separator are layered in a direction perpendicular to gravity, and (b) a fuel gas inlet a fuel gas outlet and a , fuel gas passage and, an oxidant gas inlet, an oxidant gas outlet and an oxidant gas passage are arranged such that a, humidity distribution of fuel gas at an anode and a humidity distribution of oxidant gas at a, cathode are counter to each other. The fuel cell has a coolant passage and , the humidity, distribution and a temperature distribution at the cathode correspond to each other. Each gas, passage has a concave portion at a lower wall thereof.
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 December 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2023.
- 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.