Keisuke Umeda
6Patents
3h-index
3Co-inventors
50Inventor score
Filing activity: Jun 24, 1996 → Mar 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5751676A | Optical disk recording and reproducing method and apparatus therefor | Physics | 13 | Expired |
| US5986988A | Optical disk recording method employing a plurality of recording areas and apparatus therefor | Physics | 7 | Expired |
| US7099256B2 | Bi-phase mark reproduction apparatus and optical disk drive device with the same | Physics | 4 | Expired |
| US12397715B2 | Storage device for vehicle and method of assembling storage device | Performing Operations; Transporting | 0 | Active |
| USRE41469E1 | Optical disk recording method employing a plurality of recording areas and apparatus therefor | General | 0 | Expired |
| USRE38704E1 | Optical disk recording method employing a plurality of recording areas and apparatus therefor | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.