TREA

Yutaka Matsui

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  • Kunitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    IC card system and IC card
    • Patent number 6,931,379
    • Issue date Aug 16, 2005
    • Hitachi, Ltd.
    • Akiko Sato
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Smart card managing system
    • Patent number 6,612,486
    • Issue date Sep 2, 2003
    • Hitachi, Ltd.
    • Akiko Sato
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    SMART CARD MANAGING SYSTEM
    • Publication number 20030111528
    • Publication date Jun 19, 2003
    • Akiko Sato
    • G06 - COMPUTING CALCULATING COUNTING