Contactless information carrier
US12236306B2 · kind B2 · utility
0Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2020 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Apr 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q23/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A contactless information medium is provided with a spiral wiring on an IC chip. The IC chip has first and second electrodes, and the spiral wiring has first and second end portions electrically connected to the first and second electrodes, respectively. A first relay wiring is connected to the first electrode via a first connecting hole. The first end portion is connected to the first relay wiring via a third connecting hole formed on an inner peripheral side of the spiral wiring. The first relay wiring includes a rectangular region diagonally including the first connecting hole and the third connecting hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.