FUJI ELECTRIC CO., LTD.
4,884Patents
3,120Active
4,884Granted
58Portfolio score
Filing activity: Feb 14, 1974 → May 9, 2024 · 302 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4420564A | Blood sugar analyzer having fixed enzyme membrane sensor | Emerging Cross-Sectional Technologies | 473 | Expired |
| US8586484B2 | Film forming method and film forming apparatus | Emerging Cross-Sectional Technologies | 451 | Active |
| US4407959A | Blood sugar analyzing apparatus | Emerging Cross-Sectional Technologies | 315 | Expired |
| US7126294B2 | Method and device for controlling photovoltaic inverter, and feed water device | Emerging Cross-Sectional Technologies | 260 | Expired |
| US4483924A | System for controlling a printer in a blood sugar analyzer | Emerging Cross-Sectional Technologies | 256 | Expired |
| US8071482B2 | Manufacturing method of a silicon carbide semiconductor device | Emerging Cross-Sectional Technologies | 225 | Active |
| US6097063A | Semiconductor device having a plurality of parallel drift regions | Electricity | 189 | Expired |
| US5757979A | Apparatus and method for nonlinear normalization of image | Physics | 162 | Expired |
| US6291856A | Semiconductor device with alternating conductivity type layer and method of manufacturing the same | Electricity | 149 | Expired |
| US5693569A | Method of forming silicon carbide trench mosfet with a schottky electrode | Emerging Cross-Sectional Technologies | 145 | Expired |
| US4740711A | Pipeline built-in electric power generating set | Emerging Cross-Sectional Technologies | 138 | Expired |
| US4904548A | Method for controlling a fuel cell | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5637414A | Method and system for controlling output of fuel cell power generator | Emerging Cross-Sectional Technologies | 135 | Expired |
| US6174773A | Method of manufacturing vertical trench misfet | Electricity | 133 | Expired |
| US5150704A | Laser therapeutic apparatus | Human Necessities | 128 | Expired |
| US5981996A | Vertical trench misfet and method of manufacturing the same | Electricity | 126 | Expired |
| US6294818A | Parallel-stripe type semiconductor device | Electricity | 126 | Expired |
| US4622444A | Circuit breaker housing and attachment box | Electricity | 126 | Expired |
| US6408230B2 | Omnidirectional vehicle and method of controlling the same | Physics | 124 | Expired |
| US4910100A | Solid electrolyte fuel cell | Emerging Cross-Sectional Technologies | 120 | Expired |
| US5787653A | Sheet-shaped solar module mounting structure | Emerging Cross-Sectional Technologies | 111 | Expired |
| US5543956A | Torsional vibrators and light deflectors using the torsional vibrator | Physics | 107 | Expired |
| US6621132B2 | Semiconductor device | Electricity | 101 | Expired |
| US5581219A | Circuit breaker | Electricity | 101 | Expired |
| US5680014A | Method and apparatus for generating induced plasma | Electricity | 99 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.