Eiichi Okamoto
29Patents
9h-index
33Co-inventors
75Inventor score
Filing activity: May 9, 1978 → May 31, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD673212S1 | Printer | General | 34 | Active |
| US4276605A | Method and apparatus for supervising a digital protective relaying system | Electricity | 30 | Expired |
| USD347239S | Ink jet printer | General | 25 | Expired |
| USD390591S | Image printer | General | 25 | Expired |
| US4281386A | Systems for detecting faults in electric power systems | Physics | 24 | Expired |
| USD559996S1 | Component extractor for extracting nucleic acids | General | 21 | Expired |
| US4309767A | Monitor system for a digital signal | Electricity | 19 | Expired |
| USD359066S | Image recorder | General | 16 | Expired |
| USD341614S | Memory card camera | General | 10 | Expired |
| USD363304S | Image recorder | General | 9 | Expired |
| US6545304B2 | Solid-state image pickup device | Electricity | 9 | Expired |
| US4371926A | Input/output information indication system | Physics | 8 | Expired |
| USD363885S | Densitometer | General | 8 | Expired |
| USD399869S | Copying machine | General | 8 | Expired |
| USD317773S | Camera | General | 7 | Expired |
| USD603032S1 | Air-cleaning device | General | 5 | Expired |
| US4212046A | Distance relaying systems | Electricity | 5 | Expired |
| USD366272S | Combined photographic printer and film processor | General | 5 | Expired |
| US6946694B2 | Gate oxide film structure for a solid state image pick-up device | Electricity | 5 | Expired |
| US4339802A | Digital protective relaying devices | Electricity | 4 | Expired |
| USD320217S | Camera | General | 4 | Expired |
| USD320216S | Camera | General | 2 | Expired |
| USD533217S1 | Printer for photographs | General | 1 | Expired |
| US7394141B2 | Substrate for forming a solid-state image pickup element, solid-state image pickup element using the same, and method of producing the same | Electricity | 1 | Active |
| USD502957S1 | Photo image scanner | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.