Kazuhiro Itoh
73Patents
13h-index
75Co-inventors
87Inventor score
Filing activity: Sep 28, 1982 → Dec 6, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6058700A | Device for purifying exhaust gas of engine | Mechanical Engineering; Lighting; Heating | 123 | Expired |
| US6233927A | Exhaust gas purification device | Emerging Cross-Sectional Technologies | 53 | Expired |
| US6192675A | Exhaust gas purification device for an internal combustion engine | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6977560B2 | Input/output coupling structure for dielectric waveguide resonator | Electricity | 29 | Expired |
| US6546721B2 | Exhaust gas purification device | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6820418B2 | Exhaust gas purification apparatus | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6672050B2 | Exhaust gas purification device of an engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6655133B2 | Exhaust gas purifier for internal combustion engine | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4532685A | Method of assembling a reciprocating compressor | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6725651B2 | Reducing agent for emission control system, reducing-agent supply device, and emission control system using the reducing agent | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6568178B2 | Device for purifying the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6823665B2 | Exhaust gas purification device | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6959540B2 | Exhaust gas purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6644023B2 | Exhaust emission control device of internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6101999A | Compression ignition type engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6588204B2 | Device for purifying the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4945867A | Two-stroke engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6898930B2 | Exhaust gas purification device | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6644022B2 | Exhaust gas purification device of internal combustion engine | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US7272924B2 | Exhaust gas purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6361579B1 | Exhaust gas purifier and method for internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4883030A | Combustion chamber of a two-stroke engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6874315B2 | Exhaust gas purification device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6786041B2 | Exhaust gas purification method and exhaust gas purification apparatus | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7086222B2 | Exhaust gas purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.