Inventor
TSUKADA TOMOYA
JP16 patents
⚠️ This page may combine multiple inventors who share the name “TSUKADA TOMOYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS7793625B2Sep 14, 2010
Variable valve actuating apparatus for internal combustion engine
HITACHI LTD32 citations92
US7444971B2Nov 4, 2008
Valve timing control apparatus of internal combustion engine
HITACHI LTD24 citations92
US7246581B2Jul 24, 2007
Variable valve timing control apparatus of internal combustion engine
HITACHI LTD14 citations92
US7827949B2Nov 9, 2010
Variable valve timing control apparatus of internal combustion engine
HITACHI LTD8 citations84
US7444254B2Oct 28, 2008
Valve timing control apparatus of internal combustion engine
HITACHI LTD9 citations84
US7406935B2Aug 5, 2008
Variable valve timing control apparatus of internal combustion engine
HITACHI LTD11 citations84
US7198012B2Apr 3, 2007
Valve timing control apparatus for internal combustion engine
HITACHI LTD13 citations83
US7581519B2Sep 1, 2009
Phase adjusting apparatus and a cam shaft phase adjusting apparatus for an internal combustion engine
HITACHI LTD7 citations73
US7089898B2Aug 15, 2006
Valve timing control device of internal combustion engine
HITACHI LTD9 citations73
US7225774B2Jun 5, 2007
Valve timing control apparatus for internal combustion engine
HITACHI LTD7 citations69
US7287498B2Oct 30, 2007
Valve timing control apparatus and its assembling method
HITACHI LTD2 citations62
US7159549B2Jan 9, 2007
Variable valve system of internal combustion engine
HITACHI LTD4 citations62
US7150251B2Dec 19, 2006
Valve timing control apparatus
HITACHI LTD6 citations62
US6910451B2Jun 28, 2005
Valve timing control system and method of producing valve timing control system
HITACHI LTD2 citations61