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Hidehiko Maehata

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for removing thin metal films
    • Patent number 7,544,283
    • Issue date Jun 9, 2009
    • Hitachi Zosen Corporation
    • Hiroyuki Daiku
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Apparatus for separating plastic chips
    • Patent number 6,903,294
    • Issue date Jun 7, 2005
    • Hitachi Zosen Corporation
    • Hiroyuki Daiku
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Composite separator
    • Patent number 6,774,332
    • Issue date Aug 10, 2004
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Plastic sorter
    • Patent number 6,720,514
    • Issue date Apr 13, 2004
    • Hitachi Zosen Corporation
    • Tetsuya Inoue
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Plastic chip separator
    • Patent number 6,467,628
    • Issue date Oct 22, 2002
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Blasting apparatus, blasting method and retainer member used for th...
    • Patent number 6,431,074
    • Issue date Aug 13, 2002
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Method and apparatus for separating plastic
    • Patent number 6,426,474
    • Issue date Jul 30, 2002
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of separating plastic
    • Patent number 6,415,929
    • Issue date Jul 9, 2002
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Blasting apparatus
    • Patent number 6,408,761
    • Issue date Jun 25, 2002
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Blasting apparatus and blasting method
    • Patent number 6,389,973
    • Issue date May 21, 2002
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Plastics sorting apparatus
    • Patent number 6,365,857
    • Issue date Apr 2, 2002
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Electric screen device
    • Patent number 6,357,390
    • Issue date Mar 19, 2002
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Demolishing apparatus using discharge impulse
    • Patent number 6,318,268
    • Issue date Nov 20, 2001
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Blasting apparatus
    • Patent number 6,298,785
    • Issue date Oct 9, 2001
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Plasma blasting with coaxial electrodes
    • Patent number 6,283,555
    • Issue date Sep 4, 2001
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Destroying apparatus and method, and holding member for use in that...
    • Patent number 6,279,477
    • Issue date Aug 28, 2001
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Frictional charging device
    • Patent number 6,271,492
    • Issue date Aug 7, 2001
    • Hitachi Zosen Corporation
    • Hidehiko Maehata
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Discharge destroying method, discharge destroying device and method...
    • Patent number 6,145,934
    • Issue date Nov 14, 2000
    • Hitachi Zosen Corporation
    • Hiroaki Arai
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Apparatus to prevent the entrance of aquatic species into the intak...
    • Patent number 5,078,542
    • Issue date Jan 7, 1992
    • Hitachi Zosen Corporation
    • Tohru Yoshikawa
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents