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Hiroyuki Tsuzuku

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  • Iwata, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Saddle-straddling type motor vehicle
    • Patent number 7,302,934
    • Issue date Dec 4, 2007
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Wataru Ishii
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Induction control system for multi-valve engine
    • Patent number 6,148,794
    • Issue date Nov 21, 2000
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hiroyuki Tsuzuku
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Induction control system for multi-valve engine
    • Patent number 5,852,994
    • Issue date Dec 29, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hiroyuki Tsuzuku
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Multi valve engine with variable valve operation
    • Patent number 5,836,274
    • Issue date Nov 17, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Tetsushi Saito
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Air-assisted injection system for multi-valve engine
    • Patent number 5,819,706
    • Issue date Oct 13, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Naoki Tsuchida
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Variable valve timing mechanism
    • Patent number 5,809,953
    • Issue date Sep 22, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Tetsushi Saito
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Direction injection system for multi-valve engine
    • Patent number 5,799,638
    • Issue date Sep 1, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Naoki Tsuchida
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Variable valve timing mechanism
    • Patent number 5,785,017
    • Issue date Jul 28, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Tetsushi Saito
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Valve actuating structure for multi-valve engine
    • Patent number 5,758,612
    • Issue date Jun 2, 1998
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hiroyuki Tsuzuku
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Valve operating system for multi-valve engine
    • Patent number 5,606,942
    • Issue date Mar 4, 1997
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hiroyuki Tsuzuku
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Induction control system for multi-valve engine
    • Patent number 5,595,156
    • Issue date Jan 21, 1997
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hiroyuki Tsuzuku
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Induction system for engine
    • Patent number 5,575,254
    • Issue date Nov 19, 1996
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Naoki Tsuchida
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Saddle-straddling type motor vehicle
    • Publication number 20070175688
    • Publication date Aug 2, 2007
    • YAMAHA HATSUDOKI KABUSHIKI KAISHA
    • Wataru Ishii
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    COMBUSTION CHAMBER FOR DIRECT INJECTION ENGINE
    • Publication number 20010003281
    • Publication date Jun 14, 2001
    • KENJI MORI
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...