View source for 20250219281. Antenna Device Ic Card Hav (TDK)

= ANTENNA DEVICE AND IC CARD HAVING THE SAME =

'''Abstract''':
disclosed herein is an antenna device that includes a metal plate having a through hole, a first coil wound along the through hole and having an opening that overlaps the through hole, and a second coil wound along an outer edge of the metal plate and connected to the first coil. the edge of the through hole includes a first edge positioned on one side in a first direction as viewed from a center of the first through hole and a second edge positioned on another side in the first direction as viewed from the center of the first through hole. the first edge has a first protruding part protruding toward the second edge and overlapping a winding area of the first coil. the second edge has a second protruding part protruding toward the first edge and overlapping the winding area of the first coil.

'''Inventor(s)''': [[:Category:Shoma KAJIKIYA of Tokyo  JP|Shoma KAJIKIYA]], [[:Category:Toshio TOMONARI of Tokyo  JP|Toshio TOMONARI]]

'''CPC Classification''': [[:Category:CPC_H01Q1/2216|H01Q1/2216]] ({used in interrogator/reader equipment})


[[Category:Patent Applications]]
[[Category:TDK Corporation]]
[[Category:CPC_H01Q1/2216]]
[[Category:Shoma KAJIKIYA of Tokyo  JP]]
[[Category:Toshio TOMONARI of Tokyo  JP]]

[https://wikipatents.org/index.php?search=20250219281+rejection&title=Special%3ASearch&wprov=acrw1_-1 Search for rejections for patent application number 20250219281]


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