An ic card with a solar battery
CA 1285641 C · Owner: Toa Nenryo Kogyo Kabushiki Kaisha · Inventors: Tanagawa, Kouzi; Kumagai, Keiji; Ohta, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An IC card with a solar battery ABSTRACT OF THE DISCLOSURE, An IC card having a plastics card body which mounts a CPU, a RAM, a ROM, a solar battery mounts also an EEPROM (electrically erasable programmable read only memory) which is used for identification of a card owner Due to, high power consumption of said EEPROM a tandem type solar, battery in which a plurality of opto-electric conversion cells are laminated on a substrate is used. The present IC card can operate with only the solar battery mounted inside of the IC card, and has no secondary battery.
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 July 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
- 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.