Inventor
Jeffrey L. Lovgren
Inventor
Rochester, MN, US
Overview
Patents· 5 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 transducer50%
G06FElectric digital data processing17%
H03MCoding17%
H04NPictorial communication, e.g. television17%
PatentTitleYear
4,591,727'Solid state scanner for a variable speed transport'19864,578,722'Method for checking disk identity in a flexible disk recorder'19864,484,178'Digital-to-analog converter'19844,202,020'Magnetic head load control system'19804,110,804'Read/write and tunnel erase magnetic head assembly'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1986Patents assigned to IBM (5)· patent assignee history
1978–1986Based in Rochester, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 5 | 1978–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, Minnesota, US | 5 | 1978–1986 |