Inventor
NAKADA KEIICHI
JP46 patents
⚠️ This page may combine multiple inventors who share the name “NAKADA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
28 patentsUS6516785B1Feb 11, 2003
Air flow sensor
HITACHI LTD87 citations98
US6557411B1May 6, 2003
Heating element type mass air flow sensor, and internal combustion engine-control apparatus using the sensor
HITACHI LTD70 citations96
US6349596B1Feb 26, 2002
Thermal type air flow sensor
HITACHI LTD58 citations96
US6666082B2Dec 23, 2003
Thermal airflow sensor
HITACHI LTD24 citations93
US6553829B1Apr 29, 2003
Air flow sensor having grooved sensor element
HITACHI LTD25 citations93
US6357294B1Mar 19, 2002
Thermal air flow sensor
HITACHI LTD29 citations93
US6752014B1Jun 22, 2004
Hot-wire type air flow meter for internal combustion engine
HITACHI LTD28 citations92
US6708560B2Mar 23, 2004
Measurement apparatus for measuring physical quantity such as fluid flow
HITACHI LTD26 citations92
US6571621B2Jun 3, 2003
Thermal flow rate measuring device
HITACHI LTD26 citations92
US6851311B2Feb 8, 2005
Thermal-type flow meter with bypass passage
HITACHI LTD22 citations91
US7631555B2Dec 15, 2009
Thermal flowmeter for measuring a flow rate of fluid
HITACHI LTD10 citations84
US7555944B2Jul 7, 2009
Physical quantity sensor
HITACHI LTD8 citations84
US7409859B2Aug 12, 2008
Thermal type flow measuring apparatus
HITACHI LTD11 citations84
US7395707B2Jul 8, 2008
Thermal type flow rate measuring apparatus
HITACHI LTD9 citations84
US7337661B2Mar 4, 2008
Thermal fluid flow meter having heat-generating resistor and temperature adjuster therefor
HITACHI LTD11 citations84
US6694810B2Feb 24, 2004
Air flow meter
HITACHI LTD14 citations84
US6490915B2Dec 10, 2002
Thermal type air flow sensor and control device for a vehicle
HITACHI LTD18 citations84
US7650784B2Jan 26, 2010
Thermal type flow rate measuring apparatus
HITACHI LTD7 citations74
US7377161B2May 27, 2008
Air flow measuring device provided with a vent in air passage
HITACHI LTD4 citations74
US6854326B2Feb 15, 2005
Measurement apparatus for measuring physical quantity such as fluid flow
HITACHI LTD8 citations74
US6860149B2Mar 1, 2005
Mass airflow measuring apparatus
HITACHI LTD6 citations73
US6672153B2Jan 6, 2004
Mass airflow measuring apparatus
HITACHI LTD6 citations73
USRE42529EJul 12, 2011
Thermal flow rate measuring device
HITACHI LTD4 citations63
US7559237B2Jul 14, 2009
Air flow measuring device provided with a vent in air passage
HITACHI LTD2 citations63
US7287424B2Oct 30, 2007
Thermal type flow measurement apparatus having asymmetrical passage for flow rate measurement
HITACHI LTD3 citations63
US7181962B2Feb 27, 2007
Thermal flow sensor
HITACHI LTD6 citations63
US7721599B2May 25, 2010
Reduced resistance thermal flow measurement device
HITACHI LTD2 citations62
US7624633B2Dec 1, 2009
Fluid flow sensor and fluid flow measurement device
HITACHI LTD1 citations52
HITACHI CAR ENG CO LTD
15 patentsUS6988399B1Jan 24, 2006
Physical quantity detecting device having second lead conductors connected to the electrodes and extending to the circumference of the substrate
HITACHI CAR ENG CO LTD20 citations93
US6923053B2Aug 2, 2005
Gas flowmeter and manufacturing method thereof
HITACHI CAR ENG CO LTD31 citations93
US7216535B2May 15, 2007
Air flow measuring device and engine having the air flow measuring device
HITACHI CAR ENG CO LTD11 citations92
US7059183B2Jun 13, 2006
Air flow measuring device
HITACHI CAR ENG CO LTD15 citations92
US6925866B2Aug 9, 2005
Thermal type flow rate measuring apparatus
HITACHI CAR ENG CO LTD15 citations92
US7270000B2Sep 18, 2007
Fluid flow sensor and fluid flow measurement device
HITACHI CAR ENG CO LTD11 citations84
US7228614B2Jun 12, 2007
Method of manufacturing a gas flow meter
HITACHI CAR ENG CO LTD14 citations84
US7032446B2Apr 25, 2006
Flowrate measuring device with improved flow introduction into sub-passage outlet
HITACHI CAR ENG CO LTD13 citations84
US6889545B2May 10, 2005
Flow rate sensor
HITACHI CAR ENG CO LTD17 citations84
US7201047B2Apr 10, 2007
Air flow measuring device
HITACHI CAR ENG CO LTD9 citations74
US7137298B2Nov 21, 2006
Thermal air flowmeter
HITACHI CAR ENG CO LTD10 citations74
US7104126B2Sep 12, 2006
Thermal type flow rate measuring apparatus
HITACHI CAR ENG CO LTD7 citations74
US6973826B2Dec 13, 2005
Heating resistance flow rate measuring apparatus
HITACHI CAR ENG CO LTD7 citations74
US6935172B2Aug 30, 2005
Thermal type flow measuring device
HITACHI CAR ENG CO LTD8 citations74
US7225669B2Jun 5, 2007
Heating resistance flow rate measuring apparatus
HITACHI CAR ENG CO LTD0 citations52