Hitachi Chemical Company, Ltd.

Hitachi, Ltd.

Kouji Tasaki

Hironori Ishizaka

Masahito Shibutani

Kousuke Tanaka

Masahisa Shinzawa

Masahiko Oota

Hisayo Masuda

Toshihiro Endou

Hiroyuki Hosoi

Jo Kakuta

Hiroaki Narita

Hiroki Sato

Susumu Yamada

Shigehiro Konno

Katsuya Iwata

Provided is an RFID tag, wherein a communication distance of several centimeter or more can be secured and the cost of which can be reduced in comparison to conventional on-chip antennas, even when being compact in size (square shaped with a side of 1.9 to 13 mm). The RFID tag () comprises an antenna (), an IC chip () connected to the antenna (), and a sealing material () that seals the IC chip () and the antenna (). The antenna () is a coil antenna or a loop antenna, and the resonance frequency (f) of an electric circuit constituted by the inductance (L) of the antenna () and the capacitance (C) of the IC chip () is equal to the operation frequency of the IC chip (), or in the vicinity thereof.

RFID tag

There is provided an electronic device manufacturing method capable of manufacturing a device having a preferable communication characteristic at a low cost with a high productivity. The manufacturing method is for manufacturing an electronic device including a plurality of IC chips, each having external electrodes formed on a pair of opposing surfaces. Oneof the electrodes is arranged on an antenna circuitin a transmission/reception antenna having a slit. Furthermore, a bridging plateis arranged for separately and electrically connecting the other external electrodeto a predetermined position of the corresponding antenna circuit. The method is characterized in that by positioning at least one of the IC chipswith the predetermined position on the corresponding antenna circuitto be mounted, it is possible to arrange the retraining IC chipsat the predetermined positions on the antenna circuitall at once.

Manufacturing method for electronic device having IC chip and antenna electrically connected by bridging plate

A tubular container enabling individual identification, suitable to store semen of a domestic animal or a small amount of an organism individual sample and to manage history information, excellent in reliability, workability, and communication characteristics, and incorporating an IC tag. The tubular container is composed of a resin tubular container, a sealing cap, an IC tag embedded in the sealing cap and composed of an IC chip and a first transmitting/receiving antenna, and a second transmitting/receiving antenna fixed to the tubular container.

Tubular container enabling individual identification

To provide a method of producing an electronic apparatus that is inexpensive, contributes to high productivity, and can achieve good communication characteristics. A method of producing an electronic apparatus composed of an IC chip () having an external electrode formed on each of a set of opposing surfaces of the IC chip; an antenna circuit () having a slit formed in it; and a short circuit plate () for electrically connecting the IC chip () and the antenna circuit (). In the method, a disc-like conveyor () has hands () on its outer periphery, and each hand () is capable of holding a single IC chip (). The hands () hold IC chips () individually, and the IC chips () are conveyed by rotation of the disc-like conveyor (). As a result, a plurality of IC chips () whose maximum number is equal to the number of the hands () can be simultaneously conveyed.

Method of producing electronic apparatus

Growing community of inventors

Chikusei, Japan

Kouji Tasaki