Non-contact IC module

• US 7,748,638 B2
• Filed: 01/11/2008
• Issued: 07/06/2010
• Est. Priority Date: 01/27/2000
• Status: Expired due to Fees

• Current Assignee: Hitachi Maxell Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Maxell Limited (Hitachi, Ltd.)
• Inventors: Daido, Kazuhiko, Hino, Yoshiharu
• Primary Examiner(s): Lee; Seung H
• Application Number:
  US12/013,339
• Publication Number:
  US 20080117118A1
• Time in Patent Office: 907 Days
• Field of Search: 235/436, 235/439, 235/441, 235/451, 235/487, 235/492, 235/493
• US Class Current: 235/492
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

An accessed object having a non-contact IC module including a semiconductor device and a module-side antenna formed extending over two sides of an accessed object, wherein the module-side antenna consists of a first module-side antenna and a second module-side antenna continuous to the first module-side antenna, wherein the first module-side antenna secures a necessary antenna effective area by coming into face-to-face relation with a first apparatus-side antenna on communication apparatus to communicate with the accessed object, and wherein the second module-side antenna is disposed close to the second apparatus-side antenna in an access direction different from the direction in which the first apparatus-side antenna makes access to the accessed object.

Claims

1. An accessed object comprising:

a non-contact IC module including an IC chip and a radio communication antenna coil connected to said IC chip,

wherein said radio communication antenna coil is a continuous conductive wiring pattern extending over two surfaces of different directions of said accessed object, and

wherein said IC chip is inside the radio communication antenna coil, and

wherein said IC module is bent at almost midportion.

2. An accessed object according to claim 1,

wherein said IC chip and said radio communication antenna coil are formed on a flexible sheet, and

wherein said sheet is bent substantially at a right angle and attached to said accessed object.

3. An accessed object according to claim 2, wherein said IC chip is provided in that position of said sheet which is away from the bent portion thereof.

4. An accessed object according to claim 1, wherein said radio communication antenna coil is provided in the vicinity of a corner portion of the said accessed object.

5. An accessed object according to claim 1, wherein said accessed object has a casing and said radio communication antenna coil is provided inside said casing.

6. An accessed object according to claim 5, wherein said casing is opaque or translucent.

7. An accessed object according to claim 1, wherein said accessed object is holding an information recording medium.

8. An accessed object comprising:

a non-contact IC module including an IC chip and a radio communication antenna coil connected to said IC chip,

wherein said radio communication antenna coil is a continuous conductive wiring pattern extending over two surfaces of different directions of said accessed object, and

wherein said IC chip is inside the radio communication antenna coil, and

wherein said IC module is bent.

9. An accessed object according to claim 8, wherein said IC chip and said radio communication antenna coil are formed on a flexible sheet, and wherein said sheet is bent and attached to said accessed object.

10. An accessed object according to claim 9, wherein said IC chip is provided in that position of said sheet which is away from the bent portion thereof.

11. An accessed object according to claim 8, wherein said radio communication antenna coil is provided in the vicinity of a corner portion of the said accessed object.

12. An accessed object according to claim 8, wherein said accessed object has a casing and said radio communication antenna coil is provided inside said casing.

13. An accessed object according to claim 12, wherein said casing is opaque or translucent.

14. An accessed object according to claim 8, wherein said accessed object is holding an information recording medium.