Nobuo Kitajima
29Patents
6h-index
30Co-inventors
69Inventor score
Filing activity: Oct 30, 1974 → Jul 14, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4591903A | Recording apparatus | Electricity | 22 | Expired |
| USD721651S1 | Coil component | General | 19 | Active |
| US4202937A | Electrophotographic photosensitive member having no fatigue effect | Physics | 14 | Expired |
| US4853752A | Image processing method | Electricity | 12 | Expired |
| US4365015A | Photosensitive member for electrophotography composed of a photoconductive amorphous silicon | Physics | 7 | Expired |
| US4286032A | Electrophotographic process and apparatus therefor | Physics | 7 | Expired |
| US4255505A | Electrophotographic process using layered element containing p-type or n-type materials, with multiple charging steps and blanket irradiation | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7952457B2 | Coil component | Electricity | 3 | Active |
| US8217746B2 | Choke coil for interleaved PFC circuit | Electricity | 3 | Active |
| US7205726B2 | Discharge lamp drive apparatus and liquid crystal display apparatus | Electricity | 3 | Expired |
| US4347296A | Electrophotographic photosensitive member and electrophotographic process | Physics | 2 | Expired |
| US6188207A | Switching power supply | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9424982B2 | Transformer | Electricity | 2 | Active |
| US3941591A | Electrophotographic photoconductive member employing a chalcogen alloy and a crystallization inhibiting element | Physics | 2 | Expired |
| US9153371B2 | Coil device | Electricity | 2 | Active |
| US8866577B2 | Coil component | Electricity | 1 | Active |
| US4439504A | Electrophotographic photosensitive member and color electrophotographic process | Physics | 1 | Expired |
| US4551003A | Electrophotographic process and apparatus therefor | Physics | 1 | Expired |
| US10096421B2 | Coil device and method for manufacturing the same | Electricity | 0 | Active |
| US12406797B2 | Coil device | Electricity | 0 | Active |
| US10361025B2 | Transformer and leakage transformer | Electricity | 0 | Active |
| US12205757B2 | Coil device | Electricity | 0 | Active |
| US4352875A | Voltage distribution difference electrophotographic process | Physics | 0 | Expired |
| US4347297A | Electrophotographic method and element | Physics | 0 | Expired |
| US8253522B2 | Coil component having wire-support member | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.