Virgil S. Speriosu
22Patents
19h-index
31Co-inventors
77Inventor score
Filing activity: Oct 31, 1989 → Mar 30, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5206590A | Magnetoresistive sensor based on the spin valve effect | Physics | 377 | Expired |
| US5583725A | Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor | Physics | 214 | Expired |
| US5159513A | Magnetoresistive sensor based on the spin valve effect | Physics | 203 | Expired |
| US5408377A | Magnetoresistive sensor with improved ferromagnetic sensing layer and magnetic recording system using the sensor | Electricity | 202 | Expired |
| US5287238A | Dual spin valve magnetoresistive sensor | Physics | 184 | Expired |
| US5701223A | Spin valve magnetoresistive sensor with antiparallel pinned layer and improved exchange bias layer, and magnetic recording system using the sensor | Physics | 162 | Expired |
| US5561368A | Bridge circuit magnetic field sensor having spin valve magnetoresistive elements formed on common substrate | Performing Operations; Transporting | 138 | Expired |
| US5422571A | Magnetoresistive spin valve sensor having a nonmagnetic back layer | Electricity | 116 | Expired |
| US5650887A | System for resetting sensor magnetization in a spin valve magnetoresistive sensor | Physics | 93 | Expired |
| US5301079A | Current biased magnetoresistive spin valve sensor | Physics | 74 | Expired |
| US5341261A | Magnetoresistive sensor having multilayer thin film structure | Physics | 53 | Expired |
| US5014147A | Magnetoresistive sensor with improved antiferromagnetic film | Physics | 47 | Expired |
| US5574605A | Antiferromagnetic exchange coupling in magnetoresistive spin valve sensors | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5696656A | Highly sensitive orthogonal spin valve read head | Physics | 42 | Expired |
| US5828530A | Orthogonal spin valve sensor with reduced net field | Physics | 33 | Expired |
| US5598308A | Magnetoresistive sensor having multilayer thin film structure | Physics | 32 | Expired |
| US5974657A | Two step resetting of magnetization of spin valve read head at the row level | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5856617A | Atomic force microscope system with cantilever having unbiased spin valve magnetoresistive strain gauge | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5893981A | Method of making stabilized MR sensor and flux guide joined by contiguous junction | Physics | 21 | Expired |
| US5930084A | Stabilized MR sensor and flux guide joined by contiguous junction | Physics | 19 | Expired |
| US6239955A | Stabilized MR sensor and heat guide joined by contiguous junction | Physics | 11 | Expired |
| US6181532A | Stabilized MR sensor and flux/heat guide joined by contiguous junction | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.