Inventor

Keiichi Nakada

Inventor

Hitachinaka, JP

Overview

2001–2019

Patent span

Physics

Primary field (CPC G)

Patents· 46 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Fprimary

G01FMeasuring volume, volume flow, mass flow or liquid level68%

F02DControlling combustion engines12%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock5%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%

Y10TTechnical subjects covered by former us classification3%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact2%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application2%

G01CMeasuring distances, levels or bearings2%

H01CResistors2%

H01RElectrically-conductive connections2%

PatentTitleYear

10,260,921Thermal flow meter2019 9,297,677'Gas flow rate measuring apparatus for minimizing temperature dependent errors'2016 RE042529'Thermal flow rate measuring device'2011 7,721,599'Reduced resistance thermal flow measurement device'2010 7,650,784'Thermal type flow rate measuring apparatus'2010 7,631,555'Thermal flowmeter for measuring a flow rate of fluid'2009 7,624,633'Fluid flow sensor and fluid flow measurement device'2009 7,559,237'Air flow measuring device provided with a vent in air passage'2009 7,555,944'Physical quantity sensor'2009 7,409,859'Thermal type flow measuring apparatus'2008 7,395,707'Thermal type flow rate measuring apparatus'2008 7,377,161'Air flow measuring device provided with a vent in air passage'2008 7,337,661'Thermal fluid flow meter having heat-generating resistor and temperature adjuster therefor'2008 7,287,424'Thermal type flow measurement apparatus having asymmetrical passage for flow rate measurement'2007 7,270,000'Fluid flow sensor and fluid flow measurement device'2007 7,228,614'Method of manufacturing a gas flow meter'2007 7,225,669'Heating resistance flow rate measuring apparatus'2007 7,216,535'Air flow measuring device and engine having the air flow measuring device'2007 7,201,047'Air flow measuring device'2007 7,181,962'Thermal flow sensor'2007 7,137,298'Thermal air flowmeter'2006 7,104,126'Thermal type flow rate measuring apparatus'2006 7,059,183'Air flow measuring device'2006 7,032,446'Flowrate measuring device with improved flow introduction into sub-passage outlet'2006 6,988,399'Physical quantity detecting device having second lead conductors connected to the electrodes and extending to the circumference of the substrate'2006 6,973,826'Heating resistance flow rate measuring apparatus'2005 6,935,172'Thermal type flow measuring device'2005 6,925,866'Thermal type flow rate measuring apparatus'2005 6,923,053'Gas flowmeter and manufacturing method thereof'2005 6,889,545'Flow rate sensor'2005 6,860,149'Mass airflow measuring apparatus'2005 6,854,326'Measurement apparatus for measuring physical quantity such as fluid flow'2005 6,851,311'Thermal-type flow meter with bypass passage'2005 6,752,014'Hot-wire type air flow meter for internal combustion engine'2004 6,708,560'Measurement apparatus for measuring physical quantity such as fluid flow'2004 6,694,810'Air flow meter'2004 6,672,153'Mass airflow measuring apparatus'2004 6,666,082'Thermal airflow sensor'2003 6,571,621'Thermal flow rate measuring device'2003 6,557,411'Heating element type mass air flow sensor, and internal combustion engine-control apparatus using the sensor'2003 6,553,829'Air flow sensor having grooved sensor element'2003 6,516,785'Air flow sensor'2003 6,490,915'Thermal type air flow sensor and control device for a vehicle'2002 6,357,294'Thermal air flow sensor'2002 6,349,596'Thermal type air flow sensor'2002 6,170,567'Heat exchanger'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2011Patents assigned to HITACHI CAR ENG CO LTD (35)· patent assignee history

2002–2011Patents assigned to HITACHI LTD (28)· patent assignee history

2002–2019Based in Hitachinaka, JP· patent location history

2003–2005Based in Tokyo, JP· patent location history

2005–2007Based in Chiyoda-ku, JP· patent location history

2008–2011Based in Munich, DE· patent location history

2010Based in Oberding, DE· patent location history

2016–2019Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (2)· patent assignee history

2016Patents assigned to NAKADA KEIICHI (1)· patent assignee history

2016Patents assigned to SATO RYO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CAR ENG CO LTD	35	2002–2011
HITACHI LTD	28	2002–2011
HITACHI AUTOMOTIVE SYSTEMS LTD	2	2016–2019
NAKADA KEIICHIself	1	2016
SATO RYO	1	2016

Locations

Location	Patents	Span
Hitachinaka, JP	37	2002–2019
Munich, DE	3	2008–2011
Chiyoda-ku, JP	2	2005–2007
Tokyo, JP	2	2003–2005
Oberding, DE	1	2010