Masami Okamoto
62Patents
22h-index
60Co-inventors
91Inventor score
Filing activity: Apr 12, 1990 → Mar 1, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7054570B2 | Image-forming apparatus | Physics | 40 | Expired |
| US7116923B2 | Fuser provided with auxiliary power supply device to operate with varying power | Physics | 35 | Expired |
| US7130555B2 | Fixing unit having a plurality of heaters, image forming apparatus and method of determining temperature detecting position of temperature sensor | Physics | 31 | Expired |
| US7239821B2 | Image forming apparatus including a heating unit | Physics | 30 | Expired |
| US7173080B2 | Biodegradable resin composition for molding and object molded or formed from the same | Chemistry; Metallurgy | 30 | Expired |
| US7609988B2 | Heater, fixing unit and image forming apparatus having power supplied from chargeable auxiliary power supplying unit varied per unit time | Physics | 30 | Expired |
| US7308216B2 | Image forming apparatus and method to supply power to a fixing device | Physics | 30 | Expired |
| US7343113B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 29 | Expired |
| US7333743B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 29 | Expired |
| US7603049B2 | Image formation apparatus and associated method of storing power | Electricity | 28 | Active |
| US7209675B2 | Image forming apparatus | Physics | 28 | Expired |
| US7212759B2 | Heating device, fixing device and image forming apparatus | Physics | 27 | Expired |
| US7366432B2 | Fixing device for fixing an image, image forming apparatus including the fixing device, and fixing method | Physics | 26 | Active |
| US5572868A | Exhaust manifold | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7551869B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 26 | Expired |
| US7565087B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 26 | Active |
| US7885569B2 | Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit | Physics | 25 | Active |
| US7356270B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 24 | Expired |
| US7515845B2 | Method for supplying power, and fixing and image forming apparatuses | Physics | 23 | Expired |
| US7496309B2 | Image forming apparatus with auxiliary power source | Physics | 23 | Active |
| US7957663B2 | Heater, fixing unit and image forming apparatus | Physics | 23 | Active |
| US7212758B2 | Image-forming apparatus | Physics | 22 | Expired |
| US7373094B2 | Fixing unit having a plurality of heaters, image forming apparatus and method of determining temperature detecting position of temperature sensor | Physics | 22 | Active |
| US7449510B2 | Biodegradable polyester resin composition, process for producing the same and foamed article and molded article using the same | Chemistry; Metallurgy | 18 | Expired |
| US6394446B1 | Reverse feeding device | Physics | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.