TREA

Masakazu Sakamoto

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable electric jigsaw
    • Patent number D404274
    • Issue date Jan 19, 1999
    • Ryobi Ltd.
    • Daigo Ogasawara
    • D08 - Tools and hardware
  • Information Patent Grant

    Band saw
    • Patent number D345171
    • Issue date Mar 15, 1994
    • Ryobi Ltd.
    • Satoru Watanabe
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Electric trimmer
    • Patent number D343554
    • Issue date Jan 25, 1994
    • Ryobi Ltd.
    • Satoru Watanabe
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric hammer drill
    • Patent number D342878
    • Issue date Jan 4, 1994
    • Ryobi Ltd.
    • Satoru Watanabe
    • D08 - Tools and hardware
  • Information Patent Grant

    Electric mower
    • Patent number D342425
    • Issue date Dec 21, 1993
    • Ryobi Ltd.
    • Satoru Watanabe
    • D08 - Tools and hardware
  • Information Patent Grant

    Concrete hammer
    • Patent number D341532
    • Issue date Nov 23, 1993
    • Ryobi Ltd.
    • Satoru Watanabe
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric hammer drill
    • Patent number D341533
    • Issue date Nov 23, 1993
    • Ryobi Ltd.
    • Nobuhiko Karafuji
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric saw
    • Patent number D339510
    • Issue date Sep 21, 1993
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver
    • Patent number D337038
    • Issue date Jul 6, 1993
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Compound miter saw
    • Patent number D334756
    • Issue date Apr 13, 1993
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Portable electric trimmer
    • Patent number D333953
    • Issue date Mar 16, 1993
    • Ryobi Ltd.
    • Hiroaki Miyoshi
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver drill
    • Patent number D332208
    • Issue date Jan 5, 1993
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Battery charger
    • Patent number D327669
    • Issue date Jul 7, 1992
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Portable electric drill
    • Patent number D326598
    • Issue date Jun 2, 1992
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver
    • Patent number D325858
    • Issue date May 5, 1992
    • Ryobi Ltd.
    • Toshiaki Saito
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric mortiser
    • Patent number D325862
    • Issue date May 5, 1992
    • Ryobi Ltd.
    • Mitsumasa Sato
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver
    • Patent number D325861
    • Issue date May 5, 1992
    • Ryobi Ltd.
    • Toshiaki Saito
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric driver
    • Patent number D325503
    • Issue date Apr 21, 1992
    • Ryobi Ltd.
    • Naoki Kikuchi
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric plane
    • Patent number D323098
    • Issue date Jan 14, 1992
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric belt sander
    • Patent number D323099
    • Issue date Jan 14, 1992
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Storage battery for electric tools
    • Patent number D321338
    • Issue date Nov 5, 1991
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery charger
    • Patent number D321337
    • Issue date Nov 5, 1991
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Grass shear
    • Patent number D307377
    • Issue date Apr 24, 1990
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric sander
    • Patent number D302930
    • Issue date Aug 22, 1989
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Power concrete hammer
    • Patent number D301967
    • Issue date Jul 4, 1989
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Portable electric jig saw
    • Patent number D295945
    • Issue date May 31, 1988
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D08 - Tools and hardware
  • Information Patent Grant

    Fishing reel
    • Patent number D294727
    • Issue date Mar 15, 1988
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D22 - Arms, pyrotechnics, hunting and fishing equipment
  • Information Patent Grant

    Fishing reel
    • Patent number D294623
    • Issue date Mar 8, 1988
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D22 - Arms, pyrotechnics, hunting and fishing equipment
  • Information Patent Grant

    Fishing reel
    • Patent number D294516
    • Issue date Mar 1, 1988
    • Ryobi Ltd.
    • Masakazu Sakamoto
    • D22 - Arms, pyrotechnics, hunting and fishing equipment
  • Information Patent Grant

    Fishing reel
    • Patent number D293702
    • Issue date Jan 12, 1988
    • Ryobi Limited
    • Masakazu Sakamoto
    • D22 - Arms, pyrotechnics, hunting and fishing equipment