Inventor
Hjalmar H. Ottesen
Inventor
Rochester, MN, US
Overview
Patents· 6 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 transducer67%
G05DSystems for controlling or regulating non-electric variables11%
G06FElectric digital data processing11%
G11CStatic stores11%
PatentTitleYear
5,237,466'Method and apparatus for programmably controlling spindle synchronization and phase among disk drives in a storage subsystem'19934,894,599'deadbeat control of disk drive actuator'19904,697,127'Adaptive control technique for a dynamic system'19874,048,660'Record track following and seeking'19774,016,603'Disk storage apparatus having signals recorded in a specific format'19774,005,477'Phase equalized readback apparatus and methods'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1993Patents assigned to IBM (6)· patent assignee history
1977Based in Oslo, NO· patent location history
1987–1993Based in Rochester, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 6 | 1977–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, Minnesota, US | 3 | 1987–1993 |
| Oslo, NO | 3 | 1977 |