Hideki Ishida
66Patents
13h-index
91Co-inventors
87Inventor score
Filing activity: Feb 3, 1988 → Nov 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6198891A | Image forming apparatus | Physics | 87 | Expired |
| US6101349A | Image-forming machine having an image forming unit movable from an acting position to a non-acting position | Physics | 68 | Expired |
| US7639329B2 | Liquid crystal panel and liquid crystal display apparatus | Physics | 50 | Active |
| US7116744B2 | Clock recovery circuit and receiver circuit for improving the error rate of signal reproduction | Electricity | 32 | Expired |
| US6311139A | Method for estimating yield of integrated circuit device | Electricity | 28 | Expired |
| US7233172B2 | Differential amplifier circuit capable of accurately amplifying even high-speeded signal of small amplitude | Electricity | 24 | Expired |
| US5552861A | Image forming apparatus having controller adjusting current to main charger and transfer charger | Physics | 22 | Expired |
| US5392099A | Image forming apparatus having cleaning member for cleaning charging wire | Physics | 21 | Expired |
| US6002897A | Image-forming machine with photosensitive drum mount | Physics | 21 | Expired |
| US4839881A | Pickup transport device for optical disc apparatus | Physics | 21 | Expired |
| US6891717B2 | Process for producing solid electrolytic capacitor and solid electrolytic capacitor | Emerging Cross-Sectional Technologies | 20 | Expired |
| USD369382S | Printer for electronic computer | General | 20 | Expired |
| US6343200B1 | Developing device having conveyance mixing units | Physics | 17 | Expired |
| US5266620A | Rubber composition | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5339137A | Image forming apparatus | Physics | 12 | Expired |
| US8087556B2 | Power tool | Emerging Cross-Sectional Technologies | 12 | Active |
| USD416572S | Printer for electronic computer | General | 11 | Expired |
| US6374073B1 | Image forming machine | Physics | 10 | Expired |
| US6194955A | Current source switch circuit | Electricity | 10 | Expired |
| US5249019A | Feed roller for mixing and feeding a powder | Physics | 10 | Expired |
| US5221974A | Image reader using two frames each driven by a different motor for adjustment of focus | Electricity | 10 | Expired |
| US4953154A | Pickup transport device for optical disc apparatus | Physics | 9 | Expired |
| US7158368B2 | Process for producing solid electrolytic capacitor and solid electrolytic capacitor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8118204B2 | Portable fastening tool | Performing Operations; Transporting | 9 | Active |
| USD340257S | Line printer for electronic computer | General | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.