Inventor
Etsuko Muraji Stewart
Inventor
Laingsburg, MI, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Dprimary
F02DControlling combustion engines32%
Y02TClimate change mitigation technologies related to transportation28%
F01LCyclically operating valves for machines or engines16%
B60WConjoint control of vehicle sub-units of different type or different function4%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general4%
F02NStarting of combustion engines4%
G01MTesting static or dynamic balance of machines or structures4%
G06FElectric digital data processing4%
H01FMagnets4%
PatentTitleYear
10,480,444Three step cam defaulting strategy for engine position sensors20199,903,282'Park positions for variable camshaft phasing systems and methods'20189,341,088'Camshaft phaser control systems and methods'20168,897,955'Ozone converting catalyst fault identification systems and methods'20148,744,716'Speed control systems and methods for internal combustion engines'20148,726,880'Electric cam phaser control systems and methods'20148,495,981'System and method for cam phaser control in an engine'20138,255,139'Method to include fast torque actuators in the driver pedal scaling for conventional powertrains'20128,147,378'Airflow based idle speed control power security'20125,792,949'Crankcase ventilation system diagnostic'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2016Based in Laingsburg, MI, US· patent location history
2012–2016Patents assigned to GM GLOBAL TECH OPERATIONS INC (7)· patent assignee history
2012–2016Patents assigned to STEWART ETSUKO MURAJI (7)· patent assignee history
2012–2014Patents assigned to WHITNEY CHRISTOPHER E (3)· patent assignee history
2012Patents assigned to JIN NING (2)· patent assignee history
2018–2019Patents assigned to GM GLOBAL TECH OPERATIONS LLC (2)· patent assignee history
2018–2019Based in Milford, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GM GLOBAL TECH OPERATIONS INC | 7 | 2012–2016 |
| STEWART ETSUKO MURAJIself | 7 | 2012–2016 |
| WHITNEY CHRISTOPHER E | 3 | 2012–2014 |
| GM GLOBAL TECH OPERATIONS LLC | 2 | 2018–2019 |
| JIN NING | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Laingsburg, MI, US | 8 | 1998–2016 |
| Milford, MI, US | 2 | 2018–2019 |