Tsuyoshi Okada
53Patents
13h-index
96Co-inventors
87Inventor score
Filing activity: Sep 28, 1988 → Oct 29, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7857964B2 | Method of refining heavy oil and refining apparatus | Emerging Cross-Sectional Technologies | 40 | Expired |
| US7247851B2 | Imaging device and an imaging method | Electricity | 36 | Expired |
| US7276151B1 | Gas turbine fuel oil and production method thereof and power generation method | Chemistry; Metallurgy | 34 | Expired |
| US5920280A | FMCW radar and method for estimating distance and relative velocity | Physics | 31 | Expired |
| US5699256A | Offset-drift correcting device for gyro-sensor | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5016258A | Digital modulator and demodulator | Electricity | 27 | Expired |
| US7218758B2 | Drive supporting device | Physics | 27 | Expired |
| US7034861B2 | Picture composing apparatus and method | Electricity | 27 | Expired |
| US6166656A | Emergency assistance system for automobile accidents | Human Necessities | 23 | Expired |
| US6215392A | Sensing device for detecting movement of vehicle by lane-marker | Physics | 23 | Expired |
| US6080228A | Gas transfer pipe arrangement | Performing Operations; Transporting | 21 | Expired |
| US5999880A | Relative car positioning system using car communication | Physics | 21 | Expired |
| US6083291A | Gas transfer pipe arrangement | Performing Operations; Transporting | 20 | Expired |
| US4998235A | Focus detection system for an optical disk drive using photo sensor elements in the far field of information pits | Physics | 13 | Expired |
| US6958770B2 | Driving assistance apparatus | Physics | 10 | Expired |
| US5031167A | Focus error detection system for an optical recording/reproducing system | Physics | 7 | Expired |
| US6786050B1 | System and method for oil fuel burning integrated combined cycle power generation | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7245275B2 | Image display controller | Physics | 6 | Expired |
| US5491446A | Adapative control device | Physics | 4 | Expired |
| US5286965A | Anticollision system for objective lens in an optical data recording apparatus | Physics | 4 | Expired |
| US5027885A | Injection apparatus and injection control method for high-speed thin plate continuous casting machine | Performing Operations; Transporting | 4 | Expired |
| US11144073B2 | Information collection system and server apparatus | Performing Operations; Transporting | 2 | Active |
| US11097742B2 | Autonomous driving system, autonomous mobile object, and server | Performing Operations; Transporting | 2 | Active |
| US5043899A | Secondary air supply system for internal combustion engines | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5325240A | Data compression and expansion apparatus for audio recorders | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.