Hisako Koyanagi
3Patents
3h-index
4Co-inventors
36Inventor score
Filing activity: Mar 6, 1998 → Feb 2, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7187658B2 | Data transmission apparatus selecting efficient network or service class | Electricity | 41 | Expired |
| US6242870A | Light emitting device driving circuit | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6078150A | Light-emitting element driving circuit and device using the same | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.