TREA

Yoshie Kumagai

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  • Suwa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ink cartridge
    • Patent number 6,302,530
    • Issue date Oct 16, 2001
    • Seiko Epson Corporation
    • Kazumichi Shimada
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet recording method and apparatus therefor
    • Patent number 5,997,136
    • Issue date Dec 7, 1999
    • Seiko Epson Corp.
    • Kazutoshi Fujisawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS