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Tadashi Hirakawa

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  • Mihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and system for changing product specifications in a corrugat...
    • Patent number 5,496,431
    • Issue date Mar 5, 1996
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rotary shear
    • Patent number 5,297,461
    • Issue date Mar 29, 1994
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Conveyor system for planar objects
    • Patent number 4,863,154
    • Issue date Sep 5, 1989
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Slitter scorer including a head exchanging device
    • Patent number 4,846,778
    • Issue date Jul 11, 1989
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Apparatus for preventing disorder in sheet alignment
    • Patent number 4,776,578
    • Issue date Oct 11, 1988
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Intermittent feeding apparatus for a continuous sheet
    • Patent number 4,706,863
    • Issue date Nov 17, 1987
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Sheet stacker
    • Patent number 4,667,953
    • Issue date May 26, 1987
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Sheet delivery device
    • Patent number 4,657,236
    • Issue date Apr 14, 1987
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Lower roll apparatus for single facer
    • Patent number 4,644,896
    • Issue date Feb 24, 1987
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Single facer
    • Patent number 4,631,109
    • Issue date Dec 23, 1986
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Single facer
    • Patent number 4,627,831
    • Issue date Dec 9, 1986
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Single facer
    • Patent number 4,481,066
    • Issue date Nov 6, 1984
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Rolls for single facer
    • Patent number 4,471,515
    • Issue date Sep 18, 1984
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Hiroyuki Takenaka
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Mill roll stand
    • Patent number 4,460,135
    • Issue date Jul 17, 1984
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Rotary plate-shape material cutting arrangement
    • Patent number 4,420,999
    • Issue date Dec 20, 1983
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Rolls for single facer
    • Patent number 4,398,328
    • Issue date Aug 16, 1983
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Hiroyuki Takenaka
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Single facer
    • Patent number 4,337,884
    • Issue date Jul 6, 1982
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Apparatus for guiding web-like material
    • Patent number 4,327,854
    • Issue date May 4, 1982
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Single facer
    • Patent number 4,316,761
    • Issue date Feb 23, 1982
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Conveyor device
    • Patent number 4,238,024
    • Issue date Dec 9, 1980
    • Mitsubishi Jukogyo Kabushiki Kaisha
    • Tadashi Hirakawa
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL