Keisuke Tsukamoto
39Patents
9h-index
47Co-inventors
75Inventor score
Filing activity: Jan 30, 1985 → Dec 3, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4590907A | Method of adaptively controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6027697A | Method and apparatus for treating combustion exhaust gases | Performing Operations; Transporting | 23 | Expired |
| US7015090B2 | Method of manufacturing a semiconductor device having trenches for isolation and capacitor formation trenches | Electricity | 19 | Expired |
| US5190008A | Lean burn internal combustion engine | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5060618A | Method and apparatus for controlling torque variations in an internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US8951869B2 | Method of manufacturing a semiconductor device | Emerging Cross-Sectional Technologies | 15 | Active |
| US5058556A | Device for determining activated condition of an oxygen sensor | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US7397516B2 | Television broadcast receiver | Electricity | 12 | Active |
| US4736726A | Method and system for controlling fuel ignition timing in diesel engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5067465A | Lean burn internal combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4862853A | Method of controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4879673A | Method and device for correcting a fuel injection quantity in a diesel engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8264053B2 | Semiconductor device including a magnetic tunnel junction and method of manufacturing the same | Electricity | 7 | Active |
| US4572130A | Method of controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5056491A | Apparatus for controlling an air-fuel ratio in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7001808B2 | Semiconductor integrated circuit device having a dummy conductive film and method of manufacturing the same | Electricity | 6 | Expired |
| US4643154A | Method of and device for controlling fuel injection timing in diesel engine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8686392B2 | Semiconductor device | Electricity | 5 | Active |
| US5146885A | Air-fuel ratio control device for an engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7095074B2 | Semiconductor device with reduced memory leakage current | Electricity | 5 | Expired |
| US4726345A | Method and device for controlling energization of high pressure electromagnetic valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7523476B2 | Digital/analogue TV receiver that renews a channel map using event information and virtual channel tables | Electricity | 3 | Expired |
| US7420621B2 | Video and audio signal output device | Electricity | 3 | Active |
| US7788691B2 | Terrestrial digital TV broadcast signal receiver | Electricity | 2 | Active |
| US8441083B2 | Semiconductor device including a magnetic tunnel junction and method of manufacturing the same | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.