Seiji Ohno
53Patents
7h-index
20Co-inventors
72Inventor score
Filing activity: Jul 24, 1990 → Feb 12, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5177405A | Self-scanning, light-emitting device | Physics | 47 | Expired |
| USD602613S1 | Luminescent element with a lens | General | 20 | Expired |
| US6919583B2 | End surface light-emitting element having increased external light emission efficiency and self-scanning light-emitting element array using the same | Electricity | 16 | Expired |
| US6717182B1 | Edge-emitting light-emitting device having improved external luminous efficiency and self-scanning light-emitting device array comprising the same | Electricity | 12 | Expired |
| US6496973B1 | Method for designing mask pattern of a self scanning light emitting device | Electricity | 11 | Expired |
| US7286259B2 | Self-scanned light-emitting device array, its driving method, and driving circuit | Electricity | 11 | Expired |
| US5756371A | Process of producing thin film transistor array | Electricity | 8 | Expired |
| US6703790B2 | Method for driving a self-scanning light-emitting array | Performing Operations; Transporting | 7 | Expired |
| US6507057B1 | Cross under metal wiring structure for self-scanning light-emitting device | Electricity | 7 | Expired |
| US6747940B2 | Optical writing head comprising self-scanning light-emitting element array | Performing Operations; Transporting | 7 | Expired |
| US8305415B2 | Light-emitting device including a light-up controller, driving method of self-scanning light-emitting element array and print head including the same | Physics | 7 | Active |
| USD652535S1 | Luminescent element with a lens | General | 6 | Expired |
| US6531826B1 | Self-scanning light-emitting device | Performing Operations; Transporting | 6 | Expired |
| US7330204B2 | Self-scanning light-emitting element array and driving method of the same | Electricity | 5 | Expired |
| US7193250B2 | Light-emitting element having PNPN-structure and light-emitting element array | Electricity | 5 | Expired |
| US6452342B1 | Self-scanning light-emitting device | Performing Operations; Transporting | 5 | Expired |
| US6266036A | Two-dimensional light-emitting element array device and method for driving the same | Physics | 5 | Expired |
| US7518152B2 | Light-emitting element having PNPN-structure and light-emitting element array | Electricity | 4 | Active |
| US6717183B2 | Light-emitting thyristor matrix array and driver circuit | Electricity | 4 | Expired |
| US7009221B2 | Light-emitting thyristor and self-scanning light-emitting device | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7834363B2 | Light-emitting element having PNPN-structure and light-emitting element array | Electricity | 3 | Active |
| USD602177S1 | Luminescent element with a lens | General | 3 | Expired |
| US6657651B2 | Optical writing head and method of correcting the deviation of a line of light spots | Performing Operations; Transporting | 3 | Expired |
| US8325210B2 | Light-emitting device, driving method of light-emitting device, print head and image forming apparatus | Physics | 3 | Active |
| US8207994B2 | Light-emitting device, exposure device, image forming apparatus and signal supply method | Physics | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.