Akio Sotokawa
16Patents
3h-index
13Co-inventors
53Inventor score
Filing activity: Sep 10, 1993 → Jun 12, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5550657A | Liquid crystal display device having an optimized ridged layer to improve luminosity | Physics | 90 | Expired |
| US7070291B2 | Light source device and display device | Physics | 10 | Expired |
| US7541723B2 | Backlight having a polarization separating element | Physics | 3 | Expired |
| US7309146B2 | Backlight having discharge tube, reflector and heat conduction member contacting discharge tube | Physics | 3 | Expired |
| US7169005B2 | Method of producing a backlight having a discharge tube containing mercury | Physics | 2 | Expired |
| US6294881A | Discharging tube with piezoelectric substrate | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7290901B2 | Light source device, and display device, display module, information handling apparatus and portable information handling apparatus comprising same | Physics | 2 | Expired |
| US7549768B2 | Display device, including discharge tube temperature control member | Physics | 1 | Active |
| US6057653A | Discharging tube with voltage raising unit and discharging unit and discharging method thereof | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7470040B2 | Light source device and display device | Physics | 1 | Active |
| US7513649B2 | Light source device and display device | Physics | 1 | Active |
| US7396144B2 | Light source device and display device | Physics | 0 | Active |
| US7513650B2 | Light source device and display device | Physics | 0 | Active |
| US7654698B2 | Light source device and display device | Physics | 0 | Active |
| US7470039B2 | Light source device and display device | Physics | 0 | Active |
| US7290899B2 | Light source device and display device | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.