Ntt Docomo, Inc.

Jvc Kenwood Corporation

Koji Chiba

Fukiko Maeda

Hiroshi Kanto

Takeshi Kimura

Hidetoshi Ishikawa

Kenji Tanisho

Takashi Kuboki

Hiroshi c/o Intellectual Property Department Ntt Docomo Inc Kanto

A contact structure causing a first electric device to be electrically connected to a second electric device includes first terminals and second terminals. The second terminals include contact projections to be electrically connected to the first terminals, and cleaning projections located closer to an opening side of a fitting part of the second electric device than the contact projections to be brought into contact with the first terminals. The contact structure is configured such that the contact projections are not in contact with a surface of an outer case of the first electric device or surfaces of the first terminals before the cleaning projections climb over the first terminals. The contact structure is also configured such that the contact projections are brought into contact with the surfaces of the first terminals after the cleaning projections climb over the first terminals.

Contact structure

A mobile terminal, which is registered to either a first mobile communication network or a second communication network, determines whether it is possible to register to the first mobile communication network on the basis of control information received from the second mobile communication network. Then, the mobile terminal attempts to register to the first mobile communication network a predetermined number of times in a case that it is determined that it is possible to register to the first mobile communication network.

System for changing location registration

A non-contact IC apparatus is provided in a simple configuration with a plurality of IC chips, while enabling reliable communication. A non-contact IC apparatushas a plurality of IC chips, an antennafor receiving a radio wave for non-contact IC apparatus, a modem partfor acquiring a signal from the radio wave received by the antenna, and a distribution control partfor selecting an IC chip to receive the signal, out of the plurality of IC chips, based on the signal acquired by the modem part, and for transmitting the signal to the selected IC chip.

Non-contact IC apparatus and control method

Mobile terminal, communication system, and method for changing location registration

Growing community of inventors

Yokohama, Japan

Koji Chiba