Tomoaki Atsumi

TL;DR: The development of the world's first flexible RFCPUs (8bit, passive type) by adding to the CPU an antenna, an analog circuit, an encryption function and an RFID function, which operate using an RF signal with a frequency of 13.56MHz.

TL;DR: A radio frequency integrated circuit (RFIC) tag consisting of an 8 bit CPU, a 4 kB ROM, a 512B SRAM, and an RF circuit, which communicates using 915 MHz UHF RF signals, has been developed on both a flexible substrate and a glass substrate.

TL;DR: In this article, an antenna circuit and a booster antenna for supplying electric power are provided in a movable electronic device, where the antenna circuit receives a radio signal such as an electromagnetic wave via the booster antenna, and electric power that is obtained through the receiving of the radio signal is supplied to the battery through a signal processing circuit.

TL;DR: In this article, the secondary battery is used as a power supply for supplying power to the RFID, and when the power which is obtained from a signal received from outside is larger than predetermined power, its surplus power is stored in the battery; and when power which was obtained from the signal received by outside is smaller than the predetermined power was used for the power for driving.

TL;DR: In this article, it was shown that the channel forming regions of the transistors having at least the same polarity are formed on the same line, and that high conformance can be expected for an analog circuit which has the crystalline semiconductor transistors on a same line formed using the invention as the channels of the thin film transistors.