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Masaharu Oyama

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  • Chikushino-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Applying voltages to an ink jet printhead
    • Patent number 7,055,922
    • Issue date Jun 6, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Kouji Ikeda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Waveform generating circuit, inkjet head driving circuit and inkjet...
    • Patent number 6,830,302
    • Issue date Dec 14, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Kenichi Masumoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet recording apparatus
    • Patent number 6,793,311
    • Issue date Sep 21, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Koichi Baba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet head and ink jet recording apparatus
    • Patent number 6,783,212
    • Issue date Aug 31, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Kouji Ikeda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet recording apparatus
    • Patent number 6,736,479
    • Issue date May 18, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Koichi Baba
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Head drive unit and driving method
    • Patent number 6,513,893
    • Issue date Feb 4, 2003
    • Matsushita Electrc Industrial Co., Ltd.
    • Takahiro Esaki
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Electrostatic ink jet recording apparatus
    • Patent number 6,428,149
    • Issue date Aug 6, 2002
    • Matsushita Electric Industrial Co. Ltd.
    • Yosuke Mizuyama
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet recording apparatus
    • Patent number 5,790,142
    • Issue date Aug 4, 1998
    • Matsushita Electric Industrial Co., Ltd.
    • Shunichi Uchinami
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink discharging device
    • Patent number 5,657,062
    • Issue date Aug 12, 1997
    • Matsushita Electric Industrial Co., Ltd.
    • Tadashi Shiraishi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink jet apparatus with voltage control unit controlling a voltage s...
    • Patent number 5,159,355
    • Issue date Oct 27, 1992
    • Matsushita Electric Industrial Co., Ltd.
    • Hideaki Horio
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents