Lintec Corporation

Katsumi Katakura

Taiga Matsushita

Kenichi Watanabe

Naoya Okamoto

Masateru Yamakage

Katsuyoshi Matsuura

Takakazu Murakami

Kaori Matsushita

Masayuki Narukawa

A support device, which supports a belt-shaped sheet wound around a hollow cylindrical shaft core so as to feed the belt-shaped sheet, includes a support shaft that is insertable into a hollow part of the shaft core, a frame that supports the support shaft, an antenna surface perpendicular to an axis line of the support shaft, and a loop antenna provided to the antenna surface. The shaft core includes a non-contact data carrier capable of at least one of storing and transmitting predetermined data. The loop antenna includes a loop unit coiled to define a loop surrounding the axis line. When the shaft core is seen through the loop antenna along the axis line, the loop unit is disposed in the vicinity of the shaft core.

Support device for band-shaped sheet, and method for managing band-shaped sheet

An antenna circuit which includes a substrate and a planar circuit with a circuit line of a conductive material formed on a surface of the substrate, and at least one conductive pad (notch-forming part) electrically connected with the circuit line of the planar circuit. Cutting lines, such as perforations, are provided in the substrate around an outer periphery of the notch-forming part and extend into the notch-forming part on either side of connection points where the circuit line connects with the notch-forming part, The cutting lines approach each other in the notch-forming part to form a section (notch port). The antenna circuit can be destroyed even if an IC tag provided with the antenna circuit is peeled off from various directions, and the destruction rate of the circuit can be increased stably.

Antenna circuit

The present invention provides an electronic circuit which comprises a circuit line and a terminal portion connected to the circuit line, wherein the terminal portion has a folding endurance structure at a junction where the terminal portion is connected to the circuit line and the folding endurance structure of the terminal portion has a plane width gradually-increasing portion, in which the width of the terminal portion in plane view increases continuously or intermittently as the folding endurance structure of the terminal portion becomes away from the junction where the terminal portion is connected to the circuit line. The electronic circuit and an IC tag incorporating the electronic circuit of the present invention are excellent in folding endurance property, and can have an electronic circuit which is hard to break even if the electronic circuit is folded.

Electronic circuit and IC tag

An antenna circuit includes a plurality of antenna circuit units on a circuit substrate. The plurality of antenna circuit units includes: a large antenna circuit unit whose circuit size is large; and a small antenna circuit unit whose circuit size is smaller than the size of the large antenna circuit unit, the small antenna circuit unit provided inside the large antenna circuit unit and provided detachable from the large antenna circuit unit.

Growing community of inventors

Tokyo, Japan

Katsumi Katakura