Jeffrey Liu
16Patents
5h-index
19Co-inventors
63Inventor score
Filing activity: Mar 7, 1983 → May 2, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4864444A | Latch for high performance linear actuator for memory storage device | Physics | 27 | Expired |
| US6311893A | Optical data access system with data card reader having a single rotational moving pickup head | Physics | 14 | Expired |
| US4599666A | Disk drive system apparatus band actuator | Physics | 11 | Expired |
| US4974107A | High performance linear actuator for memory storage device | Physics | 6 | Expired |
| US7334733B2 | Data access device using rotational head to access data stored in data strips and data arc segments or data circles | Physics | 5 | Expired |
| US6775080B2 | Data access device implemented with open and closed control loops to access data stored in discrete stepwise segments | Physics | 5 | Expired |
| US6728059B2 | Magnetic data card servo writer | Physics | 4 | Expired |
| US6417980B1 | Magnetic data card servo writer | Physics | 4 | Expired |
| US6934098B2 | Data card with a full circular track for alignment and amplitude calibration | Physics | 4 | Expired |
| US6502755B2 | Optical data storage card | Physics | 3 | Expired |
| US6588671B2 | Positioning of a recording head for a data storage device | Physics | 3 | Expired |
| US7336569B2 | Optical disk tracking servo circuit enabled to compensate for non-continuous track segments or prolonged defect | Physics | 2 | Expired |
| US6307709A | Magnetic data storage card | Physics | 2 | Expired |
| US6339569B1 | Optical data card servo writer | Physics | 2 | Expired |
| US12064761B2 | Flow cell with flexible connection | Performing Operations; Transporting | 1 | Active |
| US7185814B2 | Layer structure and method of manufacture for optical memory strip (OMS) | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.