Inventor
YAMADA MASAMICHI
JP124 patents
⚠️ This page may combine multiple inventors who share the name “YAMADA MASAMICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 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
US7437927B2Oct 21, 2008
Thermal type gas flow meter
HITACHI LTD23 citations93
US7155332B2Dec 26, 2006
Method for obtaining exhaust gas flow quantity, exhaust gas flow measurement apparatus, and exhaust gas recirculation control system
HITACHI LTD33 citations93
US6666082B2Dec 23, 2003
Thermal airflow sensor
HITACHI LTD24 citations93
US6553829B1Apr 29, 2003
Air flow sensor having grooved sensor element
HITACHI LTD25 citations93
US6209402B1Apr 3, 2001
Measuring element, mass air flow meter therewith and compensating method for accurately measuring air flow
HITACHI LTD23 citations93
US7852070B2Dec 14, 2010
GMR sensor device having AC power supply
HITACHI LTD27 citations92
US6752014B1Jun 22, 2004
Hot-wire type air flow meter for internal combustion engine
HITACHI LTD28 citations92
US4799118AJan 17, 1989
Thin film magnetic head
HITACHI LTD36 citations91
US4752850AJun 21, 1988
Multi-track magnetic thin film heads
HITACHI LTD27 citations91
US4422109ADec 20, 1983
Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape
HITACHI LTD46 citations91
US5708205AJan 13, 1998
Measuring element for a mass air flow sensor and mass air flow sensor using the measuring element
HITACHI LTD32 citations90
US7685874B2Mar 30, 2010
Thermal type flow sensor with a constricted measuring passage
HITACHI LTD12 citations84
US7631555B2Dec 15, 2009
Thermal flowmeter for measuring a flow rate of fluid
HITACHI LTD10 citations84
US7555944B2Jul 7, 2009
Physical quantity sensor
HITACHI LTD8 citations84
US7395707B2Jul 8, 2008
Thermal type flow rate measuring apparatus
HITACHI LTD9 citations84
US7360415B2Apr 22, 2008
Thermal type air flow meter having semiconductor sensor elements with similar diaphragm sizes
HITACHI LTD13 citations84
US7337661B2Mar 4, 2008
Thermal fluid flow meter having heat-generating resistor and temperature adjuster therefor
HITACHI LTD11 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
RICOH KK
10 patentsUS6088558AJul 11, 2000
Method and apparatus for suppressing belt shift in an image forming apparatus
RICOH KK89 citations98
US6577840B2Jun 10, 2003
Method and apparatus for image forming capable of effectively performing an image fixing process
RICOH KK57 citations96
US7228096B2Jun 5, 2007
Paper ejection guide of fixing mechanism for image forming apparatus having simple jam clearing structure
RICOH KK25 citations93
US6925280B2Aug 2, 2005
Fixing device and image forming apparatus including the same
RICOH KK25 citations93
US6553204B1Apr 22, 2003
Fixing device for fixing a toner image in an image forming apparatus
RICOH KK35 citations93
US6351619B1Feb 26, 2002
Image forming apparatus, belt type fixing device and heating control
RICOH KK40 citations93
US6091926AJul 18, 2000
Fixing device using a belt for an image forming apparatus
RICOH KK48 citations93
US6865363B2Mar 8, 2005
Method and apparatus for image forming capable of effectively performing an image fixing process
RICOH KK35 citations92
US7751768B2Jul 6, 2010
Fixing device and image forming apparatus including fixing device
RICOH KK14 citations84
US7359664B2Apr 15, 2008
Fixing device for an image forming apparatus including supporting members for fixing belts of the fixing device
RICOH KK15 citations84
HITACHI CAR ENG CO LTD
8 patentsUS7284424B2Oct 23, 2007
Thermal air flow rate measuring apparatus and its flowmeter and internal combustion engine and thermal air flow rate measuring method using it
HITACHI CAR ENG CO LTD47 citations93
US7010971B2Mar 14, 2006
Heating resistor type flow-measuring device having a heating resistor and a thermoresistance, whose resistance value varies in response to the ambient temperature
HITACHI CAR ENG CO LTD31 citations93
US6988399B1Jan 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
US6925866B2Aug 9, 2005
Thermal type flow rate measuring apparatus
HITACHI CAR ENG CO LTD15 citations92
US7269999B2Sep 18, 2007
Thermal airflow meter
HITACHI CAR ENG CO LTD15 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
NAKANO HIROSHI
3 patentsYAMADA MASAMICHI
2 patentsRICOH CO LTD
2 patentsMITSUI MINING & SMELTING CO
1 patentFUJIOKA TETSUYA
1 patentHITACHI AUTOMOTIVE SYSTEMS LTD
1 patentKANEKAWA NOBUYASU
1 patentShowing the top 50 of 124 patents by PatentIndex Score.