Inventor
David Rutherford
Inventor
San Jose, CA, US
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer79%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses6%
B26FPerforating3%
B41JTypewriters3%
B41LApparatus or devices for manifolding, duplicating or printing for office or other commercial purposes3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
8,681,449'Calibrating servos'20148,619,380'Detecting and recovering timing slips in a self servo write (SSW) system'20138,493,684'Calibrating voice coil motors'20138,422,158'Calibrating servos'20138,284,510'Detecting and recovering timing slips in a self servo write (SSW) system'20128,194,343'Calibrating servos'20128,184,392'Calibrating servos'20128,085,492'Helicoid group switching'20118,068,304'Calibrating servos'20118,031,428'Single-pass spiral self-servo-write'20118,023,216'Calibrating servos'20117,995,305'Calibrating voice coil motors'20117,944,313'Calibrating control loops'20117,869,158'Helicoid group switching'20117,777,981'Method for improved insitu spiral writing'20107,773,334'Single-pass spiral self-servo-write'20107,773,335'Calibrating servos'20107,737,793'Calibrating control loops'20107,567,404'Method for measuring actuator velocity during self-servo-write'20097,561,361'Dynamic synchronization of timing signals'20097,471,482'Method for improved insitu spiral writing'20087,440,224'Disk drive servo'20087,349,171'Method for measuring actuator velocity during self-servo-write'20087,292,402'Systems and methods for multipass servowriting with a null burst pattern'20077,259,931'Slider design for high fly write immunity'20077,110,209'Systems and methods for efficient writing of low-RRO phase-burst servo patterns'20065,505,551'Sheet separator'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Based in Carmichael, CA, US· patent location history
2006–2014Based in San Jose, CA, US· patent location history
2008–2010Patents assigned to MARVELL WORLD TRADE LTD (4)· patent assignee history
2009–2014Patents assigned to MARVELL INT LTD (18)· patent assignee history
2011–2014Patents assigned to RUTHERFORD DAVID (9)· patent assignee history
2011–2014Patents assigned to CHEUNG MAN (8)· patent assignee history
2011–2014Patents assigned to NEOS PERRY (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MARVELL INT LTD | 18 | 2009–2014 |
| RUTHERFORD DAVIDself | 9 | 2011–2014 |
| CHEUNG MAN | 8 | 2011–2014 |
| NEOS PERRY | 6 | 2011–2014 |
| MARVELL WORLD TRADE LTD | 4 | 2008–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 26 | 2006–2014 |
| Carmichael, California, US | 1 | 1996 |