Won-choul Yang
20Patents
7h-index
11Co-inventors
62Inventor score
Filing activity: Feb 12, 2002 → Aug 2, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9153272B1 | Characterizing laser output in a HAMR device | Physics | 30 | Active |
| US7355803B2 | Method and apparatus for optimizing hard disc drive and/or recording medium for the same | Physics | 28 | Expired |
| US7062698B2 | Method and apparatus to control head instability in a data storage system | Physics | 14 | Expired |
| US6954320B2 | Method and apparatus for determining disk drive parameter in accordance with ambient temperature | Physics | 13 | Expired |
| US9607642B1 | Head-medium contact detection using a thermal sensor and surface charge control of a slider | Physics | 9 | Active |
| US7009800B2 | Method to control flying height between a head and a disk and apparatus thereof | Physics | 9 | Expired |
| US9437234B1 | Head-medium contact detection using high frequency heater oscillation | Physics | 7 | Active |
| US9355671B2 | Controlling laser output in a HAMR device | Physics | 7 | Active |
| US9245561B1 | Apparatus and method for measuring surface charge of a slider | Physics | 6 | Active |
| US8730602B2 | Method and apparatus for detecting touch-down and contact between a head and a storage medium using a sensor, and a disk drive and storage medium using the method | Physics | 6 | Active |
| US7602573B2 | Device and method for adjusting distance between magnetic head and data storage medium | Physics | 6 | Active |
| US10043540B1 | Health monitoring for head of a heat-magnetic recording device using a writer-reader offset | Physics | 5 | Active |
| US9741378B1 | Health monitoring for head of a heat-assisted magnetic recording device using a writer-reader offset | Physics | 4 | Active |
| US7649706B2 | Apparatus, medium, and method controlling flying height of a magnetic head of a disk drive | Physics | 3 | Active |
| US7450328B2 | Method for recording bursts on a disk and related apparatus | Physics | 3 | Active |
| US8934185B2 | Storage device head instability recovery by heating from head heater | Physics | 3 | Active |
| US9472229B1 | Adaptive laser output control in a HAMR device | Physics | 2 | Active |
| US8934188B1 | Adaptive write pole tip protrusion compensation | Physics | 2 | Active |
| US9195533B1 | Addressing variations in bit error rates amongst data storage segments | Physics | 1 | Active |
| US7466505B2 | Dummy write method for improving performance of data storage system and apparatus therefor | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.