| Patent Number |
Title Of Patent |
Date Issued |
| 4979053 |
Method of controlling recording magnetic field applied by gap of magnetic head in accordance wit |
December 18, 1990 |
| A magnetic disk apparatus comprises an access section including a read/write head, for applying to a magnetic disk a recording magnetic field in a gap of the read/write head in accordance with input generation control data. A discriminator discriminates a recording density of the mag |
| 4914532 |
Method of efficiently erasing data in accordance with type of magnetic recording medium and appa |
April 3, 1990 |
| A magnetic recording apparatus capable of efficiently erasing data in accordance with a type of magnetic recording medium, comprises a current source, an erase head for erasing data recorded on a recording medium using a supplied erase current, and a current supplying section for sup |
| 4811143 |
Head supporting mechanism for maintaining close operative relationship between magnetic heads an |
March 7, 1989 |
| Leaf spring is fixed at one end thereto to a carriage, and extended at a predetermined angle to the carriage. A part of the leaf spring has rigidity. A gimbal spring, which free from the carriage, is mounted on the rigid portion. Head is fixed to the gimbal spring. The head can move |
| 4769724 |
Magnetic head drive apparatus which uses a common current source for the read/write head and the |
September 6, 1988 |
| In a magnetic head drive apparatus of this invention, a coil of an erasing head is connected to a center point of the coils of a read/write head, and a drive current from a constant-current source is alternately supplied to both terminals of the coil of the read/write head, according to |
