4. Dynamic magnetic information storage or retrieval
  5. Automatic control of a recorder mechanism
  6. Controlling the record

Carl R. Messenger

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Binning disk drives during manufacturing by evaluating...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Quality evaluation
Reexamination Certificate

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Disk drive employing method of spinning down its spindle...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Reexamination Certificate

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Disk drive employing method of spinning up spindle motor...

Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate

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Disk drive with efficient coil temperature estimation

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate

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Identifying defective data sectors in a disk drive

Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
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Profile ID: LFUS-PAI-P-2042252

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