Yanning Liu
49Patents
20h-index
48Co-inventors
85Inventor score
Filing activity: Jun 8, 2001 → Mar 5, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8144419B1 | Disk drive detecting head touchdown from microactuator signal | Physics | 137 | Active |
| US8605384B1 | Disk drive performing lifetime logging of microactuator sensitivity | Physics | 110 | Active |
| US8300348B1 | Disk drive detecting disk boundaries using microactuator | Physics | 110 | Active |
| US8339748B2 | Suspension assembly having a microactuator bonded to a flexure | Physics | 94 | Active |
| US8542465B2 | Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface | Physics | 93 | Active |
| US8325446B1 | Disk drive head gimbal assembly having a flexure tail with features to facilitate bonding | Electricity | 65 | Active |
| US8320084B1 | Disk drive head gimbal assembly having a flexure tail with features to facilitate bonding | Physics | 61 | Active |
| US8665567B2 | Suspension assembly having a microactuator grounded to a flexure | Physics | 58 | Active |
| US8295014B1 | Disk drive head gimbal assembly having a flexure tail with transverse flying leads | Emerging Cross-Sectional Technologies | 54 | Active |
| US8499652B1 | Test ramp for testing microactuators used in a multi-head disk drive | Physics | 49 | Active |
| US8208224B1 | Suspension assemblies for minimizing stress on slider solder joints | Physics | 49 | Active |
| US8760814B1 | Disk drive head suspension assembly having a DLC coating between dimple and tongue | Physics | 47 | Active |
| US8760812B1 | Disk drive head gimbal assembly having a jumper in a flexible printed circuit overlap region | Electricity | 47 | Active |
| US8797689B1 | Disk drive head suspension assembly with piezo element stress relief features | Physics | 47 | Active |
| US8780504B1 | Disk drive head suspension assembly with load beam inner rails between piezo actuator elements | Physics | 47 | Active |
| US8792213B1 | Tethered gimbal on suspension for improved flyability | Physics | 43 | Active |
| US8693144B1 | Head gimbal assemblies and methods for measuring slider parameters | Physics | 37 | Active |
| US8335049B1 | Disk drive detecting crack in microactuator | Physics | 36 | Active |
| US8605383B1 | Methods, devices and systems for characterizing polarities of piezoelectric (PZT) elements of a two PZT element microactuator | Physics | 23 | Active |
| US8547657B1 | Disk drive detecting defective microactuator | Physics | 22 | Active |
| US7203019B1 | Latch apparatus for latching an actuator arm assembly in a disk drive | Physics | 10 | Expired |
| US9330695B1 | Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands | Emerging Cross-Sectional Technologies | 8 | Active |
| US6598717B1 | Active-passive hybrid constrained layer for structural damping augmentation | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US11456009B1 | Shared disk configuration in a multiple actuator hard disk drive | Physics | 5 | Active |
| US8908332B2 | Suspension assembly having a microactuator grounded to a flexure | Physics | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.