Yoshihiro Segawa
13Patents
10h-index
8Co-inventors
57Inventor score
Filing activity: Mar 1, 1976 → Jul 23, 1981
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4253302A | Exhaust gas purifying device for internal combustion engine | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4066413A | Gas component detection apparatus | Physics | 23 | Expired |
| US4322383A | Gas component detection apparatus | Physics | 20 | Expired |
| US4244918A | Gas component detection apparatus | Physics | 17 | Expired |
| US4401967A | Gas sensor | Physics | 16 | Expired |
| US4258563A | Gas sensor | Physics | 16 | Expired |
| US4099922A | Gas component detection apparatus | Physics | 14 | Expired |
| US4294801A | Gas component detector | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4260978A | Gas detector element | Physics | 12 | Expired |
| US4236138A | Gas component detector | Physics | 12 | Expired |
| US4287751A | Gas detector | Physics | 10 | Expired |
| US4235096A | Gas detection apparatus | Physics | 6 | Expired |
| US4346585A | Gas detector | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.