Takuji Okumura
17Patents
7h-index
38Co-inventors
66Inventor score
Filing activity: Feb 19, 1987 → Oct 25, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6530338B2 | Flag set | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5659402A | Image processing method and apparatus | Electricity | 14 | Expired |
| US5289155A | Positive temperature characteristic thermistor and manufacturing method therefor | Electricity | 13 | Expired |
| US5237821A | Multistep electronic cooler | Electricity | 12 | Expired |
| US5331342A | Video clock generating circuit and horizontal synchronizing signal generating device in image forming apparatus using laser beam | Electricity | 11 | Expired |
| US4764212A | Thermoelectric material for low temperature use and method of manufacturing the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US10480479B2 | Control device for engine | Emerging Cross-Sectional Technologies | 7 | Active |
| US7160386B2 | Single crystal semiconductor manufacturing apparatus and manufacturing method, and single crystal ingot | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8150784B2 | Control system and method for controlled object in time variant system with dead time, such as single crystal production device by czochralski method | Chemistry; Metallurgy | 2 | Active |
| US5706102A | Data managing device in image variable magnification processing apparatus | Physics | 2 | Expired |
| US5177481A | Data generator for controlling pulse width | Physics | 1 | Expired |
| US10876488B2 | Failure diagnosis device for in-cylinder pressure sensor | Emerging Cross-Sectional Technologies | 1 | Active |
| US10815917B2 | Failure diagnosis device for in-cylinder pressure sensor | Emerging Cross-Sectional Technologies | 1 | Active |
| US10240491B2 | Control system of engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US10767592B2 | Failure diagnosis device for in-cylinder pressure sensor | Emerging Cross-Sectional Technologies | 0 | Active |
| US7918934B2 | Single crystal semiconductor manufacturing apparatus and manufacturing method, and single crystal ingot | Emerging Cross-Sectional Technologies | 0 | Active |
| US10934962B2 | Abnormality diagnosis device for in-cylinder pressure sensor | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.