Magnetic Peripherals, Inc.
177Patents
0Active
177Granted
42Portfolio score
Filing activity: Nov 9, 1977 → Apr 29, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4810520A | Method for controlling electroless magnetic plating | Chemistry; Metallurgy | 241 | Expired |
| US4827531A | Method and device for reading a document character | Physics | 170 | Expired |
| US4775978A | Data error correction system | Physics | 164 | Expired |
| US5062021A | Selectively textured magnetic recording media | Emerging Cross-Sectional Technologies | 163 | Expired |
| US4620248A | Apparatus for controlling humidity in a disk drive | Physics | 101 | Expired |
| US5108781A | Process for manufacturing selectively textured magnetic recording media | Physics | 91 | Expired |
| US4802042A | Side-vented magnetic head air bearing slider | Physics | 89 | Expired |
| US4803580A | Double-gap magnetoresistive head having an elongated central write/shield pole completely shielding the magnetoresistive sensor strip in the read gap | Physics | 81 | Expired |
| US4799112A | Method and apparatus for recording data | Physics | 73 | Expired |
| US4800454A | Static charge protection for magnetic thin film data transducers | Physics | 61 | Expired |
| US4912576A | Method for writing a servo pattern | Physics | 59 | Expired |
| US4905110A | Disk drive spindle motor | Electricity | 53 | Expired |
| US4908715A | Disk drive unit | Physics | 47 | Expired |
| US4315246A | Document character recognition system for identifying magnetic ink characters on bank checks and the like | Physics | 47 | Expired |
| US4814908A | Thermo servo for track centering on a disk | Physics | 46 | Expired |
| US4868694A | Flexure for rotary actuated arm | Physics | 45 | Expired |
| US4891725A | Magnetoresistive sensor having antiferromagnetic exchange-biased ends | Physics | 44 | Expired |
| US4862298A | Shock load detection device | Physics | 43 | Expired |
| US5107378A | Adaptive magnetic recording and readback system | Physics | 43 | Expired |
| US4620251A | Magnetic transducer support structure | Physics | 42 | Expired |
| US4412260A | Cartridge receiver mechanism | Physics | 36 | Expired |
| US4333117A | Disc head arm position controller using digital velocity sensing | Physics | 36 | Expired |
| US4970615A | Pole design for thin film magnetic heads | Physics | 36 | Expired |
| US4462095A | Moving diffraction grating for an information track centering system for optical recording | Physics | 36 | Expired |
| US4899234A | Adaptive velocity profile for disk actuator control | Physics | 35 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.