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Hisato Ohsawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Suction tube unit of stratified scavenging engine
    • Patent number 9,988,970
    • Issue date Jun 5, 2018
    • Yamabiko Corporation
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Refuse-trapping cover for use in portable working machine
    • Patent number 7,699,902
    • Issue date Apr 20, 2010
    • Yamabiko Corporation
    • Hisato Ohsawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Working machine having a single operation unit
    • Patent number 6,871,623
    • Issue date Mar 29, 2005
    • Kioritz Corp.
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Portable power working machine
    • Patent number 6,761,136
    • Issue date Jul 13, 2004
    • Kioritz Corporation
    • Hisato Ohsawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Working machine having internal combustion engine
    • Patent number 6,647,946
    • Issue date Nov 18, 2003
    • Kioritz Corp.
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Chain saw with vibration-isolating devices
    • Patent number 6,643,939
    • Issue date Nov 11, 2003
    • Kioritz Corporation
    • Katsuya Tajima
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Portable power working machine
    • Patent number 6,378,467
    • Issue date Apr 30, 2002
    • Kioritz Corporation
    • Fujio Kobayashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Portable power working machine
    • Patent number 6,295,953
    • Issue date Oct 2, 2001
    • Kioritz Corporation
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever apparatus having a toggle mechanism
    • Patent number 5,871,202
    • Issue date Feb 16, 1999
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever apparatus including a main lever having a brake plate ca...
    • Patent number 5,868,377
    • Issue date Feb 9, 1999
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever device
    • Patent number 5,758,546
    • Issue date Jun 2, 1998
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever device
    • Patent number 5,718,052
    • Issue date Feb 17, 1998
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever device
    • Patent number 5,685,271
    • Issue date Nov 11, 1997
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hand lever device
    • Patent number 5,664,543
    • Issue date Sep 9, 1997
    • Kioritz Corporation
    • Toshio Taomo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    SUCTION TUBE UNIT OF STRATIFIED SCAVENGING ENGINE
    • Publication number 20160153346
    • Publication date Jun 2, 2016
    • Yamabiko Corporation
    • Hisato OHSAWA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Refuse-trapping cover for use in portable working machine
    • Publication number 20070266966
    • Publication date Nov 22, 2007
    • Kioritz Corporation
    • Hisato Ohsawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Portable power working machine
    • Publication number 20030221640
    • Publication date Dec 4, 2003
    • Kioritz Corporation
    • Hisato Ohsawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Working machine having a single operation unit
    • Publication number 20030075132
    • Publication date Apr 24, 2003
    • Kioritz Corporation
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Chain saw
    • Publication number 20030070308
    • Publication date Apr 17, 2003
    • Kioritz Corporation
    • Hisato Ohsawa
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Application

    Working machine having internal combustion engine
    • Publication number 20020144670
    • Publication date Oct 10, 2002
    • Hisato Ohsawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Chain saw with vibration-isolating devices
    • Publication number 20020073558
    • Publication date Jun 20, 2002
    • Katsuya Tajima
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...