Toshitaka Saito
25Patents
12h-index
43Co-inventors
81Inventor score
Filing activity: Feb 5, 1981 → Sep 5, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6304289A | Submerged laser television and submerged laser visual recognizer | Physics | 45 | Expired |
| US6115511A | Underwater laser imaging apparatus | Physics | 44 | Expired |
| US4402820A | Oxygen analyzer | Physics | 42 | Expired |
| US5518603A | Oxygen sensor and a process for production thereof | Physics | 22 | Expired |
| US5935399A | Air-fuel ratio sensor | Physics | 19 | Expired |
| US4328295A | Solid electrolyte for use in oxygen concentration sensor | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4328294A | Solid electrolyte for use in oxygen concentration sensor | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4476008A | Oxygen concentration-sensing device and the method of producing the same | Physics | 17 | Expired |
| US5948225A | Oxygen sensor element | Physics | 17 | Expired |
| US4328296A | Solid electrolyte for use in oxygen concentration sensor | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5447618A | Oxygen sensor | Chemistry; Metallurgy | 14 | Expired |
| US5472591A | Oxygen concentration detector having heat-treated support layer providing high responsivity endurance | Physics | 13 | Expired |
| US6580280B2 | Multilayered gas sensor and a related gas concentration detecting system | Physics | 12 | Expired |
| US5421984A | Oxygen concentration sensor | Physics | 10 | Expired |
| US4908119A | Apparatus for determining oxygen concentration | Physics | 8 | Expired |
| US6554983B2 | Gas sensing element employable in an exhaust system of an internal combustion engine | Physics | 7 | Expired |
| US6174489A | Method for manufacturing a gas sensor unit | Physics | 5 | Expired |
| US6254926A | Method of producing oxygen sensor element | Physics | 5 | Expired |
| US5660661A | Oxygen sensor | Chemistry; Metallurgy | 3 | Expired |
| US6805782B2 | Compound layered type of sensing device for multiple measurement | Physics | 2 | Expired |
| US6994780B2 | Gas sensor and method of detecting gas concentration | Physics | 2 | Expired |
| US6607643B2 | NOx gas detecting apparatus | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6951601B1 | Oxygen concentration detector | Physics | 1 | Expired |
| US6589409B2 | Multilayered gas sensing element employable in an exhaust system of an internal combustion engine | Physics | 1 | Expired |
| US5707503A | Oxygen sensor element | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.