P

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 patents
US6516785B1Feb 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 patents

HITACHI CAR ENG CO LTD

8 patents

NAKANO HIROSHI

3 patents

YAMADA MASAMICHI

2 patents

RICOH CO LTD

2 patents

MITSUI MINING & SMELTING CO

1 patent

FUJIOKA TETSUYA

1 patent

HITACHI AUTOMOTIVE SYSTEMS LTD

1 patent

KANEKAWA NOBUYASU

1 patent

Showing the top 50 of 124 patents by PatentIndex Score.