Hirokazu Hashikawa
6Patents
4h-index
6Co-inventors
50Inventor score
Filing activity: Apr 12, 1988 → Jan 18, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4947384A | Optical disk having narrow and wide guide grooves | Physics | 45 | Expired |
| US6777873B2 | Plasma display panel | Electricity | 12 | Expired |
| US8867136B2 | Floating image display device | Electricity | 9 | Active |
| US7038382B2 | Plasma display panel with offset discharge electrodes | Electricity | 4 | Expired |
| US6992444B2 | Plasma display panel including partition wall member | Electricity | 2 | Expired |
| US10935854B2 | Optical device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.