Toppan Printing Co., Ltd.

Hitachi, Ltd.

Hitachi Cable, Inc.

Toppan Inc.

Toppan Holdings Inc.

Shin Kataoka

Takahiro Sugiyama

Hidehiko Kando

Koji Matsui

Shinichi Takaba

Tetsuya Tsukada

Hitoshi Horita

Yoshiyuki Mizuguchi

Hidemi Nakajima

Yuko Masunaga

Yukiko Katano

Naomichi Mimita

Kozue Furuichi

Tatsurou Ozawa

Yu Kokubo

Satoko Takahashi

A contactless communication medium including an IC module and a plurality of metal plates. Each of the plurality of metal plates has a through hole and a slit. At least two or more metal plates are laminated via an insulating layer. The metal plates include a first metal plate and a second metal plate. The second metal plate extends across the slit of the first metal plate in plan view of the first metal plate and adds electrostatic capacitance between portions of the slit of the first metal plate.

Contactless communication medium

An IC card provided with an IC chip, and configured to enable at least one of contact communication and contactless communication, the IC card including an ultrasonic fingerprint sensor connected to the IC chip and a storage unit in which fingerprint data for matching is stored. An outer surface of the IC card is formed of synthetic resin, and the ultrasonic fingerprint sensor is covered with the synthetic resin.

IC card and method for manufacturing IC card

A personal identification medium is provided that includes a decorative layer provided with an antenna, and a laser marking layer in which a personal information marking portion is marked on the decorative layer, where the antenna includes a non-decorative portion and a decorative portion connected to the non-decorative portion, and the personal information marking portion formed on the laser marking layer overlaps at least a portion of the decorative portion formed on the decorative layer.

Personal identification medium

A contactless communication medium includes a film base, an antenna coil disposed on a top surface of the film base and formed in a rectangular spiral shape, an IC chip performing wireless communication processing via the antenna coil, first plate electrodes connected to an inner end and an outer end of the antenna coil, and second plate electrodes disposed on a rear surface of the film base so as to be opposite to the first plate electrodes in the thickness direction of the film base. The first plate electrodes and the second plate electrodes have a first electrode portion and a second electrode portion respectively extending along a long side direction and a short side direction of the antenna coil so as to be adjacent to an inner periphery or an outer periphery of the antenna coil when viewed perpendicular to the film base.

Contactless information medium

A contactless integrated circuit (IC) label has an IC chip and is capable of exchanging data with an external reading device without contact. The contactless IC label includes: a transparent label base material; an optical variable device formed on a lower surface of the label base material; a conductive layer bonded to and formed on a lower surface of the optical variable device, and configured to function as an antenna of the IC chip; a connecting layer electrically connected to the IC chip; an insulating layer formed between the conductive layer and the connecting layer, and configured to electrically couple the conductive layer and the connecting layer; and an impedance adjusting unit formed on at least the connecting layer of the conductive layer and the connecting layer, and configured to adjust impedances of the conductive layer and the IC chip.

Contactless IC label

A mobile phone antenna has: a first conductive radiation element that is formed in a sheet metal conductor and resonates at a predetermined resonance frequency; a second conductive radiation element that is formed in the sheet metal conductor and resonates at the predetermined resonance frequency; and a ground that is connected through a conductive ground connector with the second conductive radiation element. The ground is placed such that the ground is not opposed to the first and second conductive radiation elements.

Mobile phone antenna

Growing community of inventors

Tokyo, Japan

Shin Kataoka