Invention Grant
- Patent Title: Antenna device and RFID tag reader having the same
- Patent Title (中): 天线装置和RFID标签读取器具有相同的功能
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Application No.: US12874461Application Date: 2010-09-02
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Publication No.: US08348163B2Publication Date: 2013-01-08
- Inventor: Sadatoshi Oishi
- Applicant: Sadatoshi Oishi
- Applicant Address: JP Tokyo
- Assignee: Toshiba Tec Kabushiki Kaisha
- Current Assignee: Toshiba Tec Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Turocy & Watson, LLP
- Priority: JP2009-210896 20090911
- Main IPC: G06K19/06
- IPC: G06K19/06
Abstract:
An antenna device includes a first conductive plate, a second conductive plate, arranged in parallel with the first conductive plate, which has at least one slot formed thereon, a power feeding element located between the first and second conductive plates to feed power to the first conductive plate, and a shutter configured to be movable to close/open the slot of the second conductive plate.
Public/Granted literature
- US20110062234A1 ANTENNA DEVICE AND RFID TAG READER HAVING THE SAME Public/Granted day:2011-03-17
Information query
