TREA

Syuzo Matsumoto

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ink jet head
    • Patent number 5,270,740
    • Issue date Dec 14, 1993
    • Ricoh Company, Ltd.
    • Osamu Naruse
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid jet recording head
    • Patent number 5,260,723
    • Issue date Nov 9, 1993
    • Ricoh Company, Ltd.
    • Osamu Naruse
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet record apparatus
    • Patent number 5,146,236
    • Issue date Sep 8, 1992
    • Ricoh Company, Ltd.
    • Tositaka Hirata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS