Keisuke Samejima
12Patents
4h-index
18Co-inventors
53Inventor score
Filing activity: Nov 30, 2009 → Feb 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8503197B2 | Power supply apparatus and image forming apparatus | Electricity | 13 | Active |
| US8242873B2 | Transformer, switching power supply device, and DC-DC converter device | Electricity | 10 | Active |
| US9621061B2 | Power supply apparatus and image forming apparatus | Electricity | 8 | Active |
| US8891997B2 | Power supply system for stopping and starting operation in accordance with input voltage and image forming apparatus including the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US8284578B2 | Power supply apparatus | Emerging Cross-Sectional Technologies | 2 | Active |
| US8977157B2 | Switching power supply | Electricity | 2 | Active |
| US8976545B2 | Current resonance power supply for detecting overcurrent based on an output from a current compensation unit | Emerging Cross-Sectional Technologies | 2 | Active |
| US11474458B2 | Image forming apparatus that determines whether or not plurality of rotating bodies are in state of contact | Physics | 1 | Active |
| US9709935B2 | Fixing apparatus | Physics | 1 | Active |
| US10459361B2 | Image forming apparatus with voltage adjustment member | Physics | 0 | Active |
| US8634214B2 | Current resonance power supply with AC input detection into the primary winding | Emerging Cross-Sectional Technologies | 0 | Active |
| US9989903B2 | Fixing apparatus for fixing a toner image on a recording material at a nip portion | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.