TREA

Jyoji Shimazu

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Instructional calculator
    • Patent number 4,225,932
    • Issue date Sep 30, 1980
    • Canon Kabushiki Kaisha
    • Reiji Hirano
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Electronic calculator
    • Patent number 4,217,656
    • Issue date Aug 12, 1980
    • Canon Kabushiki Kaisha
    • Reiji Hirano
    • G06 - COMPUTING CALCULATING COUNTING