Inventor
TSUZUKU HIROYUKI
JP12 patents
Patents
12 patentsUS5836274ANov 17, 1998
Multi valve engine with variable valve operation
YAMAHA MOTOR CO LTD37 citations95
US6148794ANov 21, 2000
Induction control system for multi-valve engine
YAMAHA MOTOR CO LTD18 citations92
US5852994ADec 29, 1998
Induction control system for multi-valve engine
YAMAHA MOTOR CO LTD41 citations92
US5819706AOct 13, 1998
Air-assisted injection system for multi-valve engine
YAMAHA MOTOR CO LTD29 citations92
US5799638ASep 1, 1998
Direction injection system for multi-valve engine
YAMAHA MOTOR CO LTD25 citations92
US5785017AJul 28, 1998
Variable valve timing mechanism
YAMAHA MOTOR CO LTD17 citations92
US5758612AJun 2, 1998
Valve actuating structure for multi-valve engine
YAMAHA MOTOR CO LTD38 citations92
US5606942AMar 4, 1997
Valve operating system for multi-valve engine
YAMAHA MOTOR CO LTD46 citations92
US7302934B2Dec 4, 2007
Saddle-straddling type motor vehicle
YAMAHA MOTOR CO LTD9 citations73
US5809953ASep 22, 1998
Variable valve timing mechanism
YAMAHA MOTOR CO LTD9 citations73
US5595156AJan 21, 1997
Induction control system for multi-valve engine
YAMAHA MOTOR CO LTD7 citations73
US5575254ANov 19, 1996
Induction system for engine
YAMAHA MOTOR CO LTD7 citations73