Eiichi Maruyama
36Patents
15h-index
59Co-inventors
80Inventor score
Filing activity: May 14, 1974 → Oct 30, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4365013A | Electrophotographic member | Physics | 88 | Expired |
| US4378417A | Electrophotographic member with .alpha.-Si layers | Physics | 82 | Expired |
| US4583122A | Imaging display device | Physics | 62 | Expired |
| US4433202A | Thin film solar cell | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4613382A | Method of forming passivated polycrystalline semiconductors | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4121537A | Apparatus for vacuum deposition | Chemistry; Metallurgy | 27 | Expired |
| US4351856A | Semiconductor device and method of manufacturing the same | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4232219A | Photosensor | Electricity | 21 | Expired |
| US4377628A | Electrophotographic member with .alpha.-Si and H | Physics | 20 | Expired |
| US4360821A | Solid-state imaging device | Electricity | 19 | Expired |
| US4199777A | Semiconductor device and a method of manufacturing the same | Electricity | 19 | Expired |
| US4255686A | Storage type photosensor containing silicon and hydrogen | Electricity | 18 | Expired |
| US4323912A | Solid-state imaging device | Electricity | 18 | Expired |
| US4273812A | Method of producing material patterns by evaporating material through a perforated mask having a reinforcing bridge | Chemistry; Metallurgy | 17 | Expired |
| US4673959A | Heterojunction FET with doubly-doped channel | Electricity | 16 | Expired |
| US4904989A | Display device | Physics | 14 | Expired |
| US4605945A | Semiconductor device | Electricity | 14 | Expired |
| US4285007A | Color solid-state imager and method of making the same | Electricity | 13 | Expired |
| US4249106A | Radiation sensitive screen | Electricity | 12 | Expired |
| US4040985A | Photoconductive films | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4233506A | Photo-sensor | Electricity | 10 | Expired |
| US4672015A | Electrophotographic member having multilayered amorphous silicon photosensitive member | Physics | 10 | Expired |
| US4559547A | Semiconductor device | Electricity | 9 | Expired |
| US4227078A | Photo-sensor | Electricity | 8 | Expired |
| US4394749A | Photoelectric device and method of producing the same | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.