Card mounted with circuit chip and circuit chip module
CA 2276130 A1 · Owner: Rohm Co. Ltd. · Inventors: Chimura, Shigemi; Ikefuji, Yoshihiro; Okada, Hiroharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the processing circuit layer (106) of a card mounted with circuit chip a , processing section which is incorporated with a nonvolatile memory MODEM , circuit, and capacitor, and performs communication processing is constituted. In the constitution of the layer (106) in addition, a coil (44) constituted , by forming a metallic wire in a loop-like shape is provided. Since a communicating function is obtained by only using one IC chip (104) in which the processing section and an antenna function are integrated no wiring is , required on the outside of the chip (104). Therefore no wiring disconnection, etc. occurs. In addition the assemblage of a card mounted with circuit chip becomes …
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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 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2019.
- 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.