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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 6780663 | Method of forming floating structure of substrate and method of manufacturing floating structure gate electrode and field emission device employing the floating structure A method of forming a floating structure lifting up from a substrate and a method of manufacturing a field emission device (FED) employing the floating structure are provided. The method of forming a floating structure includes forming an expansion causer layer, whi... | 08/24/2004 |
| 6486593 | Plasma accelerator There has been invented an apparatus for acceleration of a plasma having coaxially positioned, constant diameter, cylindrical electrodes which are modified to converge (for a positive polarity inner electrode and a negatively charged outer electrode) at t... | 11/26/2002 |
| 5317230 | Amplifier valve with grid having rods of variable width A power amplifier valve with a grid is disclosed having improved reliability of operation and lifetime of the valve. A screen grid of a tetrode has a mesh grid with vertical or oblique rods in pyrolytic graphite. According to the invention, the rods are p... | 05/31/1994 |
| 4767964 | Improved mesh for CRT scan expansion lens and lens fabricated therefrom An improved mesh lens for PDA-type cathode-ray tubes is constructed in a manner that permits deformation into a concavo-convex shape with a substantially shorter radius of curvature than heretofore obtainable with prior art devices. A mesh lens (12) forme... | 08/30/1988 |
| 4227116 | Zero-bias gridded gun A gun for a linear-beam electron tube has a control grid for modulating the beam current which consists of an array of conductive web elements whose spacing from each other is much larger than their spacing from the concave emissive surface of the cathode... | 10/07/1980 |
| 4051405 | Method for controlling low-energy high current density electron beams A method and an apparatus for controlling the angle of incidence of low-egy, high current density electron beams are disclosed. The apparatus includes a current generating diode arrangement with a mesh anode for producing a drifting electron beam. An aux... | 09/27/1977 |
