Do Young Choi
38Patents
6h-index
56Co-inventors
72Inventor score
Filing activity: Jul 1, 1992 → Jan 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7787680B2 | System and method for processing an image | Physics | 50 | Active |
| US6449118B1 | Magnetic recording/reproducing apparatus | Physics | 33 | Expired |
| US5636079A | Loading apparatus for tape recorders and having a structure for moving a sub-chassis | Physics | 9 | Expired |
| US5511738A | Idler controlling apparatus of a magnetic recording/reproducing apparatus | Physics | 8 | Expired |
| US5523907A | Door mechanism for a tape recorder | Physics | 7 | Expired |
| US5450259A | Cassette lid opening and closing system for magnetic recording and reproducing apparatus | Physics | 6 | Expired |
| US5485324A | Double-deck camcorder with perpendicularly installed head drum | Physics | 5 | Expired |
| US6736351B2 | Tape guide device for magnetic recording/reproducing apparatus | Physics | 5 | Expired |
| US8083680B2 | Ultrasound system and method for forming an ultrasound image | Physics | 4 | Active |
| US6369991B1 | Head drum apparatus | Physics | 3 | Expired |
| US5724202A | Mode reset method and apparatus for a magnetic recording/reproducing apparatus | Physics | 2 | Expired |
| US7139155B2 | Head drum assembly of a tape recorder having a resilient body to preload bearings thereof | Physics | 1 | Expired |
| US7092201B2 | Tape deck mechanism with main cam gear moving sub-deck, pole base loading unit, brake unit and main sliding memeber | Physics | 1 | Expired |
| US7126793B2 | Head drum assembly for a tape recorder | Physics | 1 | Expired |
| US7628755B2 | Apparatus and method for processing an ultrasound image | Emerging Cross-Sectional Technologies | 1 | Active |
| US7280318B2 | Head drum assembly for a tape recorder | Physics | 1 | Active |
| US6487054B1 | Ground device of head drum apparatus | Physics | 1 | Expired |
| US5704563A | Reel-table driving mechanism with idler friction wheel and reel friction wheel for use in tape recording/reproducing apparatus | Physics | 1 | Expired |
| US5495373A | Reel-guide apparatus of a magnetic recording/reproducing apparatus having cassette reel holding chassis which is lowered to a position on a lower chassis | Physics | 1 | Expired |
| US7038879B2 | Electric power supply device of a tape-end detecting sensor for a tape recorder | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5508858A | Power transferring device for magnetic recording and reproducing apparatus using an electromagnetic plunger | Physics | 1 | Expired |
| US5461522A | Housing apparatus for a tape recorder and which includes a slidable cassette holder positioned on a plate member via a lever member | Physics | 0 | Expired |
| US7466512B2 | Electric power supply device of a tape-end detecting sensor for a tape recorder | Emerging Cross-Sectional Technologies | 0 | Active |
| US12427143B2 | Pharmaceutical composition for treating or preventing aging or age-related diseases | Human Necessities | 0 | Active |
| US7035043B2 | Moving deck plate for camcorder | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.