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Osamu Naruse

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ink jet printing head
    • Patent number 5,818,482
    • Issue date Oct 6, 1998
    • Ricoh Company, Ltd.
    • Yoshihisa Ohta
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • 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
  • Information Patent Grant

    Charge and deflection control type ink jet printer
    • Patent number 4,847,631
    • Issue date Jul 11, 1989
    • Ricoh Company, Ltd.
    • Osamu Naruse
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink-jet printer with an encased printer head unit
    • Patent number 4,800,398
    • Issue date Jan 24, 1989
    • Ricoh Company, Ltd.
    • Osamu Naruse
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Device for detecting viscosity of liquid
    • Patent number 4,677,845
    • Issue date Jul 7, 1987
    • Ricoh Company, Ltd.
    • Kouji Izumi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ink ejection head
    • Patent number 4,429,317
    • Issue date Jan 31, 1984
    • Ricoh Company, Ltd.
    • Michio Umezawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS