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Sadao Unuma

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Patents Grantslast 30 patents

  • Information Patent Grant

    Sheet feed tractor
    • Patent number 5,797,530
    • Issue date Aug 25, 1998
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Structures of driving and driven sprockets and belt reception rotar...
    • Patent number 5,172,843
    • Issue date Dec 22, 1992
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Paper feed apparatus equipped with feed belt supporters
    • Patent number 5,165,586
    • Issue date Nov 24, 1992
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Clamper of paper feed tractor
    • Patent number 5,131,578
    • Issue date Jul 21, 1992
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Lid for sheet feed tractor
    • Patent number 5,127,568
    • Issue date Jul 7, 1992
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Paper feeder having a paper exhaustion detector
    • Patent number 5,110,025
    • Issue date May 5, 1992
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Integral frame type paper feeder
    • Patent number 5,048,739
    • Issue date Sep 17, 1991
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Belt driving sprocket in paper feeder
    • Patent number 5,026,328
    • Issue date Jun 25, 1991
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Paper feed tractor
    • Patent number 5,002,413
    • Issue date Mar 26, 1991
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Paper feeder
    • Patent number 4,961,526
    • Issue date Oct 9, 1990
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Paper feed tractor
    • Patent number 4,940,449
    • Issue date Jul 10, 1990
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Paper feeder
    • Patent number 4,925,076
    • Issue date May 15, 1990
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Paper feed apparatus
    • Patent number 4,836,430
    • Issue date Jun 6, 1989
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Web feed tractor
    • Patent number 4,826,337
    • Issue date May 2, 1989
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Paper feeding device
    • Patent number 4,789,088
    • Issue date Dec 6, 1988
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Web feed tractor
    • Patent number 4,773,579
    • Issue date Sep 27, 1988
    • Tokai Kogyo Kabushiki Kaisha
    • Sadao Unuma
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS