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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 6812654 | Field emission type electron source element, electron gun, cathode ray tube apparatus, and method for manufacturing cathode ray tube The object of the present invention is to provide a field emission device that emits an electron beam bundle whose spot profile on a display screen has as little distortion as possible, and that maintains a stable electron emission property regardless of the length ... | 11/02/2004 |
| 6015588 | Method for fabricating electron multipliers A method for fabricating an electron multiplier is provided. The method consists of depositing a random channel layer on a substrate such that the random channel layer is capable of producing a cascade secondary electron emission in response to an inciden... | 01/18/2000 |
| 5233265 | Photoconductive imaging apparatus A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By u... | 08/03/1993 |
| 4952839 | Photoconductive device and method of operating the same A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By u... | 08/28/1990 |
| 4888521 | Photoconductive device and method of operating the same A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By u... | 12/19/1989 |
| 4763043 | P-N junction semiconductor secondary emission cathode and tube A crossed-field amplifier has a cathode in the form of a P-N junction semiconductor which is biased to the conductive state to cause the crossed-field amplifier to amplify. The P and N regions of the semiconductor are connected to an energy source which i... | 08/09/1988 |
| 4636682 | Image pickup tube A high velocity electron beam scanning negatively charge biased image pickup tube has a target which includes at least a transparent conductive layer, a photoconductor layer and a layer for secondary electron emission on a light-transmissive insulating su... | 01/13/1987 |
| 4609846 | Image pick-up tube having collector and balance electrodes An image pick-up tube has a photoelectric conversion target including a transparent substrate, and a transparent electrode and a photoconductive layer formed on the transparent substrate. An electron beam is scanned on the photoelectric conversion target.... | 09/02/1986 |
| 4556817 | Photoelectric conversion apparatus An image pickup tube of high velocity electron beam scanning and negatively charging system having a target including, on a transparent substrate, at least a transparent conductive film, a photoconductive layer, a layer for emitting secondary electrons, a... | 12/03/1985 |
| 4513308 | p-n Junction controlled field emitter array cathode A Field Emitter Array comprising a semiconductor substrate with an emitter urface formed thereon. A plurality of emitter pyramids is disposed on the emitter surface for emitting an electron current. The magnitude of the electron current emitted by each emi... | 04/23/1985 |
| 4492981 | TV Camera tube A TV camera tube suitable for the HN system comprising a glass faceplate covered by an n-type transparent electrode layer consisting of Nesa glass on which a thin p+ -type layer, a p-type layer and an n-type layer are deposited in succession to... | 01/08/1985 |
