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| Number | Title | Issue Date |
| 4868135 | Method for manufacturing a Bi-CMOS device A method for fabricating a Bi-CMOS device is disclosed herein, which device can include both vertical PNP and NPN components. The process steps include forming the reach-through N+ subcollector to the bipolar device without extra processing steps; combini... | 09/19/1989 |
| 4849259 | Method of forming silicon and oxygen containing layers Layers containing silicon and oxygen are formed by means of low pressure chemical vapor deposition. As a source for silicon and oxygen, tetraethylorthosilicate (TEOS) is used which is drawn into the low pressure area of the deposition apparatus in liquid ... | 07/18/1989 |
| 4829198 | Fault tolerant logical circuitry A fault tolerant logic circuit capable of absorbing many D.C. and A.C. defects. The logic circuit employs a number of redundant logic gate circuits. The gate circuits are arranged in at least first and second interconnected signal paths. The logic gate ci... | 05/09/1989 |
| 4740720 | Integrated injection logic output circuit An I2 L output circuit is described for supplying current (ID ') to an output node (8) of a plurality of I2 L blocks (7) in order to ascertain the logic condition at the output node. The output circuit includes a standard ... | 04/26/1988 |
| 4684219 | Display cell with self-sealing, collapsing plug An electro-optic display cell and method of making the same is disclosed herein. The display cell has an arrangement of display electrodes in contact with a liquid within a sealed enclosure. The enclosure comprises an impervious transparent cover and a ri... | 08/04/1987 |
| 4684547 | Format patterning method for magnetic recording media A method and apparatus for format patterning magnetic recording media with servo-control patterns is disclosed herein. The method comprises the steps of printing the control pattern using a resist in liquid form onto the media material by conventional pri... | 08/04/1987 |
| 4666315 | Planar and cylindrical oscillating pneumatodynamic bearings An oscillating pneumatodynamic bearing takes the form of a laminated transducer disk cooperating with a flat surface or a tubular transducer cooperating with a rod or an enclosing tube. Such bearings are also known as squeeze bearings. At least one piezoe... | 05/19/1987 |
| 4649382 | Electrochromic display employing potentiostatic erasure Completion of potentiostatic erasure of an electrochromic display is detected by monitoring the erase current supplied to addressed display electrodes by potentiostatic erase drive means. The occurrence of a fall in erase current, corresponding to complet... | 03/10/1987 |
| 4642459 | Light pen input system having two-threshold light sensing A fiber optic light pen has been adapted for high resolution use with an interactive display of a computer system. The body of the light pen, which is adapted to be hand held, includes a slightly movable tip for engaging a display screen. When so engaged,... | 02/10/1987 |
| 4620253 | Low mass actuator system for magnetic recording disk An actuator for a magnetic read/write head carried by a linear motor has its stator located between a pair of disks within a stack of magnetic recording disks. The stator comprises an array of reversed polarity magnets (preferably permanent) in a linear a... | 10/28/1986 |
| 4613916 | Information storage disk transducer position control system requiring no servo pattern on the storage disk The radial position of a transducer used to read and/or write information into or write information into or from a spinning information storage disk (optical or magnetic) is servo controlled by an optical doppler interferometer mounted at least in part fo... | 09/23/1986 |
| 4585348 | Ultra-fast photometric instrument This is a static photometric polarimeter for use with a sample S upon which a beam passed through a beam splitter (which reflects the beam to a detector Do) and which beam is 45° polarized. The reflection of the beam from the surface of sample... | 04/29/1986 |
| 4578674 | Method and apparatus for wireless cursor position control A method and apparatus for wireless cursor position control is disclosed herein. The apparatus comprises a wireless cursor position device and a separate control base whereby the direction and velocity of motion of the position device is monitored by the ... | 03/25/1986 |
| 4575190 | Hermetic electro-optic display cell A hermetic electro-optic display cell has an enclosure for a liquid electrolyte comprising a wall of a plastics material, a lower inorganic base and an upper window both of which are impervious to the electrolyte. Impervious gasket means seals at least th... | 03/11/1986 |
| 4545650 | Liquid filled electro-optic display cell with diaphragm seal A liquid-filled electro-optic display cell employs an elastomeric diaphragm to seal a filling orifice in the cell side wall. The orifice is surrounded by a rim and the diaphragm is retained over the rim in such a way as to seal the orifice while remaining... | 10/08/1985 |
