HITACHI-LG DATA STORAGE KOREA, INC.
71Patents
52Active
71Granted
47Portfolio score
Filing activity: Mar 13, 2002 → Oct 18, 2022 · 27 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7092334B2 | Method of detecting a defect area of a disk | Physics | 76 | Expired |
| US8341653B2 | Optical disc storage system | Physics | 16 | Active |
| US8824250B2 | Archive system for double sided optical disc | Physics | 13 | Active |
| US6831833B2 | Heat dissipator for optical writing and/or reproducing apparatus | Physics | 13 | Expired |
| US7602688B2 | Method for determining disc type in optical disc device | Physics | 10 | Active |
| US8042123B2 | Optical disc handling for standard slim drive | Physics | 8 | Active |
| US7596068B2 | Apparatus and method for determining type of optical disk | Physics | 7 | Expired |
| US6603659B2 | Heat dissipator for optical writing and/or reproducing apparatus | Physics | 7 | Expired |
| US7623420B2 | Focus servo control method in optical disc device | Physics | 6 | Active |
| US7301867B2 | Method and apparatus for changing a recording speed of a disk device | Physics | 4 | Expired |
| US7303429B2 | Terminal and connector using the same | Electricity | 4 | Active |
| US9739874B2 | Apparatus for detecting distances in two directions | Physics | 3 | Active |
| US9941755B2 | Method and apparatus for transmitting power wirelessly | Electricity | 3 | Active |
| US7414643B2 | Method for compensating for position error in an optical disc apparatus | Physics | 3 | Active |
| US9453743B2 | Distance measuring apparatus | Physics | 2 | Active |
| US7525899B2 | Device for traversing optical pickup of a disc drive | Physics | 2 | Expired |
| US6906987B2 | Method and apparatus of recording data optimally onto a speed-changing disk | Physics | 2 | Expired |
| US6912184B2 | Method and apparatus of measuring axial vibration of a disk recording medium | Physics | 2 | Expired |
| US7577072B2 | Method and apparatus of identifying disc types | Physics | 2 | Active |
| US9748791B2 | Reception device for wireless charging | Electricity | 2 | Active |
| US7212481B2 | Searching method and device for a recording medium having overlapped time address | Physics | 1 | Expired |
| US7209418B2 | Method for replacing defective block with good block to record data in optical disc apparatus | Physics | 1 | Expired |
| US7554890B2 | Apparatus and method for controlling writing power of optical disc | Physics | 1 | Expired |
| US7839738B2 | Method and apparatus for determining writing power for recording data | Physics | 1 | Active |
| US7414934B2 | Method for controlling optical power level | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.