H
Hidetoshi Ishikawa
Researcher at NTT DoCoMo
Publications - 12
Citations - 130
Hidetoshi Ishikawa is an academic researcher from NTT DoCoMo. The author has contributed to research in topics: Smart card & Antenna (radio). The author has an hindex of 5, co-authored 12 publications receiving 130 citations.
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Patent
Chip card of reduced size with backward compatibility and adapter for a reduced size chip card
TL;DR: In this article, an integrated circuit chip (36) is physically and electrically connected to contacts of a second contact area (38), where the locations of contacts in the second contact areas are different from locations in the first contact area.
Patent
Radio communications system and method
TL;DR: In this article, a radio communications system is disclosed, which includes a subscriber information management apparatus, and a subscriber authentication module mounted in a mobile terminal connectable to a mobile communications network to which the subscriber is connected.
Patent
Authentication vector generation device, subscriber identity module, wireless communication system, authentication vector generation method, calculation method, and subscriber authentication method
TL;DR: In this paper, a triplet authentication vector is employed to authenticate a subscriber identity module in a wireless local area network with no decrease in the confidentiality of the calculation processing, even when a Triplet is employed as the authentication vector.
Patent
Non-contact IC apparatus and control method
Hidetoshi Ishikawa,Koji Chiba +1 more
TL;DR: In this paper, a non-contact IC apparatus is provided in a simple configuration with a plurality of IC chips, while enabling reliable communication, and the IC chips are selected based on the signal acquired by the modem part 12.
Patent
Communication terminal device, access controlling method, and smart card
TL;DR: In this paper, a representative telephone directory DS is defined in a UIM, and a search request is issued from a cellular phone to search Record Number 1 in the representative phone directory DS for the registered record X. When a read-out request was issued, the data of the record is read out from Record number 1 of the representative telephone directories.