Inventor
Daniel O. Castrodale
Inventor
Rochester, MN, US
Overview
Patents· 7 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 transducer100%
PatentTitleYear
4,471,395'Self-ventilated recirculating airflow system'19844,363,044'Tray for magnetic disk drive machine'19824,170,030'Drive machine moving magnetic disks only partially therein for data transfer'19794,110,804'Read/write and tunnel erase magnetic head assembly'19784,089,029'Data storage apparatus using a flexible magnetic disk'1978RE029380'Recording apparatus for magnetic disks using both sides of the disk'19773,946,439'Recording apparatus for magnetic disks using both sides of the disk'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1984Patents assigned to IBM (6)· patent assignee history
1976–1984Based in Rochester, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 6 | 1976–1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, Minnesota, US | 7 | 1976–1984 |