ALEXANDRIA, Va., June 6 -- United States Patent no. 12,282,374, issued on April 22, was assigned to Murata Manufacturing Co. Ltd. (Kyoto-fu, Japan).
"Electronic card" was invented by Tatsuya Hosotani (Nagaokakyo, Japan) and Kiyokazu Yamada (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic card includes an electric storage device, a charging circuit, a wireless communication circuit, a processor, an electronic function circuit, a power management circuit, and a wakeup circuit configured to start the power management circuit upon receiving an external trigger. The power management circuit supplies, after being started by the wakeup circuit, power of the electric storage device to ...