Yoshikazu Tojo
8Patents
8h-index
42Co-inventors
58Inventor score
Filing activity: May 20, 1987 → Jul 27, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4901142A | Video scope system | Electricity | 86 | Expired |
| US4862872A | Endoscope and endoscope washing apparatus | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5140265A | Eddy current flaw detecting endoscope apparatus which produces signals which control other devices | Physics | 58 | Expired |
| US4803550A | Imaging apparatus having illumination means | Electricity | 45 | Expired |
| US4879992A | Rigid electronic endoscope | Human Necessities | 42 | Expired |
| US4870950A | Endoscope system | Physics | 20 | Expired |
| US4753224A | Endoscope tip | Physics | 19 | Expired |
| US4867136A | Endoscope apparatus | Physics | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.