Sumio Ito
27Patents
10h-index
31Co-inventors
75Inventor score
Filing activity: Dec 6, 1977 → Oct 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4934142A | Exhaust emission control device for a diesel engine | Emerging Cross-Sectional Technologies | 106 | Expired |
| US4916897A | Exhaust gas purifying apparatus built-in to a muffler for a diesel engine | Emerging Cross-Sectional Technologies | 76 | Expired |
| US4391253A | Electronically controlling, fuel injection method | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4875336A | Exhaust gas emission control device for diesel engine | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4210105A | Internal combustion engine injected accumulation chamber | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4401072A | Combustion chamber of a compression-ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4369736A | Intake air heater | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4223645A | Combustion chamber of an internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6626061B2 | Accelerator pedal device | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4282845A | Internal combustion engine with exhaust gas accumulation chamber | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4442809A | Combustion chamber of an internal combustion engine with an accumulation chamber | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5470434A | Decay-resistant paper for the manufacture of a pot for raising and transplanting seedlings, and the process for producing the same | Textiles; Paper | 9 | Expired |
| US4168678A | Internal combustion engine with auxiliary piston for generating turbulence | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4237826A | Multi-cylinder internal combustion engine equipped with an accumulation chamber | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4950218A | Multiple pot for raising and transplanting seedlings and method of fabricating the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4191135A | Combustion chamber of an internal combustion engine | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5155935A | Assembly of pots for raising and transplantation | Human Necessities | 7 | Expired |
| US5595020A | Continuous assembly of pots for raising and transplanting seedlings | Human Necessities | 5 | Expired |
| US5058320A | Multiple pot for raising and transplanting seedlings and method of fabricating the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5634297A | Door opening/closing apparatus | Fixed Constructions | 5 | Expired |
| US4925091A | Vehicle engine warming and passenger compartment heating device | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5653055A | Continuously assembled pots for raising and transplanting seedlings | Human Necessities | 3 | Expired |
| US4230073A | Combustion chamber of an internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7937892B2 | Continuous assemblage of pots for raising and transplanting seedlings and method of manufacturing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US8099901B2 | Continuous assemblage of pots for raising and transplanting seedlings and method of manufacturing the same | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.