Inventor
Marc J. Kobayashi
Inventor
Oro Valley, AZ, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters46%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems23%
G06FElectric digital data processing15%
G01RMeasuring electric variables8%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses8%
PatentTitleYear
10,809,758Recovery of reference clock on a device202010,651,860Asynchronous positional feedback for asynchronous and isochronous communication20209,628,002'Circuit and method for detecting missed commutation of a brushless DC motor'20179,093,941'Determining commutation position for a sensorless permanent magnet brushless motor at low or zero speed using an asymmetric drive pattern'20159,088,237'Circuit and method for calibration of sensorless control of a permanent magnet brushless motor during start-up'20159,024,561'Method and system for switching between different types of operation of a sensorless permanent magnet brushless motor at low or zero speed to determine rotor position'20159,000,696'Circuit and method for sensorless control of a permanent magnet brushless motor during start-up'20158,994,306'System and method for isolating the undriven voltage of a permanent magnet brushless motor for detection of rotor position'20157,612,544'Linearized controller for switching power converter'20097,098,633'Boost converter with series switch'20066,617,832'Low ripple scalable DC-to-DC converter circuit'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003Patents assigned to TEXAS INSTRUMENTS INC (1)· patent assignee history
2003–2015Based in Oro Valley, AZ, US· patent location history
2006–2009Patents assigned to ANALOG DEVICES INC (2)· patent assignee history
2015–2020Patents assigned to CIRRUS LOGIC INC (8)· patent assignee history
2015–2017Based in Tucson, AZ, US· patent location history
2020Patents assigned to CIRRUS LOGIC INT SEMICONDUCTOR LTD (2)· patent assignee history
2020Based in Austin, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIRRUS LOGIC INC | 8 | 2015–2020 |
| ANALOG DEVICES INC | 2 | 2006–2009 |
| CIRRUS LOGIC INT SEMICONDUCTOR LTD | 2 | 2020 |
| TEXAS INSTRUMENTS INC | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oro Valley, AZ, US | 5 | 2003–2015 |
| Tucson, AZ, US | 4 | 2015–2017 |
| Austin, Texas, US | 2 | 2020 |