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Attorney: Lowe, Price, LeBlanc, Becker & Shur


Number of patents: 1821
Last date: December 07, 1993

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NumberTitleIssue Date
5268321Method of making DRAM cell having improved radiation protection
A semiconductor memory device comprises a p- -type semiconductor substrate (1), p+ -type regions (15, 80) formed thereon, n+ -type regions (6, 7) surrounded with the p+ -type regions (15, 80), a first gate elect...
12/07/1993
5172389Gas laser apparatus
A gas laser apparatus includes an insulating material layer covering the outside of a pair of metal electrodes disposed on the outer peripheral surface of a dielectric discharge tube. The insulating material layer thus provided electrically separates the ...
12/15/1992
5111427Nonvolatile content-addressable memory and operating method therefor
Each of memory cells in a nonvolatile content-addressable memory (CAM) comprises a first memory transistor connected to a first storage node, a second memory transistor connected to a second storage node, and a memory capacitor connected between said firs...
05/05/1992
5099261Apparatus for recording and reproducing charge latent image
An apparatus for recording an image information on a recording medium comprises means for charging the recording medium in response to a light from the object; means for forming an effective region and a reference region on the recording medium, the effec...
03/24/1992
5095330Apparatus and method for forming an intermediate original sheet for printing a book
An apparatus is provided for forming a base sheet with a plurality of original films precisely stripped, i.e., affixed on it in a predetermined layout for use in a photomechanical process for printing a book. The apparatus includes a unit for receiving an...
03/10/1992
5084811Progressive start up device for a switching power supply
In a switching power supply controlled by modulated width pulses obtained by comparison between a saw-tooth voltage (15) oscillating between first and second levels and a servo control voltage (19), the servo control voltage is initially set to a value ex...
01/28/1992
5070344Writing instrument identification process and device
This device relates to graphics apparatus of the pen-plotter type comprising a plotter head which is moveable in a horizontal direction Y and supports a writing instrument which is vertically moveable (Z direction) on the head. Each writing instrument bea...
12/03/1991
5068661Multi-stage noise shaping over-sampling D/A converter
A noise shaping quantization D/A converter in which an input digital signal is supplied to a single-integration sigma delta modulation circuit having quantization levels which include zero level, with a quantization error signal from the single-integratio...
11/26/1991
5064019Electroacoustic diaphragm and method for making same
An electroacoustic diaphragm is provided, which diaphragm comprising a pyrolytic graphite film obtained from a polymer selected from polyoxadiazole, an aromatic polyimide obtained by polycondensation or pyromellitic acid and an aromatic diamine, polybenzt...
11/12/1991
5061923Computerized combination lock
A combination lock for a safe or the like is provided that is fully computerized and self powered. A rotary dial is connected to a stepper motor/generator to provide the electrical power to a capacitor to power the system. The stepper motor/generator also...
10/29/1991
5057460Method of making an electronic module, for insertion into an electronic memory-card body
A strip of metal is formed onto a lead-frame defining external contact tabs (24) and electrical connection zones (26), the lead-frame is molded into an injection moded part (39 and 40) which defines a recess (41) for receiving the semiconductor chip of th...
10/15/1991
5054617Improvements relating to containers
A container (1), such as a yogurt or cream pot, is of tube-like form with a side wall of circular cross-section tapering towards the base (2) from an open mouth (3). The base and mouth comprise opposite ends of the container. A flange plate (4) surrounds ...
10/08/1991
5053865Picture-quality improving circuit
In a picture-quality improving circuit, a luminance transition is detected on the basis of a luminance signal. Chroma edge characteristics of a color signal are enhanced in accordance with the detected luminance transition. A detection is made as to wheth...
10/01/1991
5050790Process for the fabrication of metal-made carrier body for exhaust gas cleaning catalyst
A metal-made carrier body is fabricated for an exhaust gas cleaning catalyst. At least one sheet-like metal band and at least one corrugated metal band, each of said bands being made of a thin metal sheet, are superposed one over the other so as to establ...
09/24/1991
5048951Laser anemometer with several measurement directions
A laser anemometer with several measurement directions is disclosed, in which an incident beam (3) is intercepted by two disks (91, 92) having a common axis which are driven in rotation about this axis. The two disks are provided with transparent and refl...
09/17/1991
5048058MSK modulation and differentially coherent detection transmission system
An embodiment of the transmission system comprises an MSK linear-modular transmitter and an MSK differentially coherent receiver connected by a transmission medium 3. A system embodying the invention is essentially characterized by filters in the receiver...
09/10/1991
5047610Built-up type electric heat-convection stove
Disclosed is an electric heat-convection stove, which is comprised of a base having set therein a heat-convection mechanism covered with a transparent hood of reinforcing glass and defining therein a roasting chamber for cooking, which transparent hood is...
09/10/1991
5045938Method and apparatus for encoding using variable length codes
A video signal is transformed into first blocks each containing transform coefficients. A plurality of adjacent first blocks are combined into a single second block. Transform coefficients of the second block are rearranged, and transform coefficients of ...
09/03/1991
5043788Semiconductor device with functional portions having different operating voltages on one semiconductor substrate
A single chip microcomputer as a semiconductor device comprises CMOS logic portion and a driver portion operating at a high voltage which can be connected to an external device. In the region of the CMOS logic portion, a P type well layer and an N type we...
08/27/1991
5038206Picture-quality improving circuit
In a picture-quality improving circuit, a luminance transition is detected on the basis of a luminance signal. Chroma edge characteristics of a color signal are enhanced in accordance with the detected luminance transition. A detection is made as to wheth...
08/06/1991
5033355Method of and apparatus for deriving a high pressure, high temperature plasma jet with a dielectric capillary
A pulsed high pressure, supersonic plasma jet for accelerating a projectile through an elongated confined bore is derived from a dielectric structure including a capillary passage having an interior wall surface from which plasma forming material is ablat...
07/23/1991
5032540A Process for modulating the quantity of gold diffused into a silicon substrate
For modulating the quantity of gold diffused in a silicon substrate, prior to gold diffusion, one realizes a diffusion of phosphorus varying within a 1013 to 1015 atoms/cm3 range. The concentration of phosphorous is increa...
07/16/1991
5031628Ultrasonic blood velocity detector
An ultrasonic blood velocity detector comprises an ultrasonic probe emitting ultrasonic wave into an examined body and converting echoes of the emitted ultrasonic wave into an echo signal. The echo signal is processed into a detection signal through phase...
07/16/1991
5031031Video signal processing apparatus
A video signal processing apparatus for processing a video signal including SYNC pulses, a time-compressed color difference and luminance signals, compression factors of those signals being different from each other, the color difference signal and lumina...
07/09/1991
5030586Method for manufacturing semiconductor memory device having improved resistance to ଱ particle induced soft errors
In the semiconductor memory device according to the present invention, a n type drain diffused region (9a) to be connected to a bit line (12) is formed on a p type semiconductor substrate (1) and a n type source diffused region (9b) is formed with a presc...
07/09/1991
5028170Apparatus and method for continual removal of reinforced pavement with simultaneous separation and rendering of a bulk component from a reinforcement component thereof
A system is provided for forcibly drawing a flexibly-supported, acute angled, wedge under an existing stretch of a predetermined width of reinforced pavement to initiate removal thereof from the ground below. Gravity-assisted impact hammers apply downward...
07/02/1991
5028351Process for preparing organic smectite by solid-solid reaction
A process for preparing organic smectite applied for thickener, protective colloid, dispersant and binder. The present invention features the process for preparing the organic smectite by mixing smectite incluidng 0 to 20% by weight of interlayer water in...
07/02/1991
5028745Position detecting apparatus
The position of an implement is determined relative to a tablet including a tuned circuit with a resonant frequency including coils arranged in two coordinate directions. Coils of the tablet are sequentially excited with AC energy having approximately the...
07/02/1991
5028039Vibration damping device
A vibration damping device disposed between a vibrating body such as an internal combustion engine and a base such as a vehicular chassis, comprises an accelerometer which is mounted on the vibrating body and detects an acceleration in the vertical direct...
07/02/1991
5028061Frame
A frame, suitable for a child's buggy, is provided for removably supporting a seat for a child in a plurality of angular positions, comprising a manually operable lateral mechanism which is adapted to support the seat whereby the seat is fixedly mountable...
07/02/1991
5026726Gossylic iminolactones and gossylic lactones and their anti-viral activities
A compound of the chemical formula ##STR1## wherein n is 1 or 2, X is NH and O, and R1 and R2 are H, (C1 -C12) alkyl, (C2 -C12)alkenyl, (C2 -C12)alkynyl, (C2...
06/25/1991
5026350Set of double needles for injecting liquid medicine
A set of double needles for injecting liquid medicine into a patient through a single injection point contains an inner curved needle slidably and rotatably supported within a shorter outer needle. The distal end of the inner needle can protrude from the ...
06/25/1991
5025869Impact drill
A power-driven impact drill includes a spindle extending at a right angle to the axis of rotation of a drill bit, a rotational first hammer slidably mounted on the spindle for co-rotation therewith, and a reciprocal second hammer slidably disposed in fron...
06/25/1991
5025796Apparatus and methods for determining in vivo response to thermal stimulation in in an unrestrained subject
A method for discerning a peripherally-mediated response to thermal simulation caused by a drug in an unrestrained subject is disclosed whereby it can be determined if the drug acts substantially like the placebo. Also disclosed is a method of determining...
06/25/1991
5027173Semiconductor memory device with two separate gates per block
A semiconductor memory device comprises a semiconductor substrate (10), a trench (12) formed on a main surface (11) of the semiconductor substrate, a gate region (15) formed on a main surface portion in the trench, a passive element region (16) formed on ...
06/25/1991
5027218Television camera having CCD imaging device with double line CCD section for each vertical CCD
A television camera has an imaging device and a drive circuit. The imaging device is an interline transfer CCD further having a storing section between column of vertical CCDs thereof and a horizontal CCD thereof. The storing section having first and seco...
06/25/1991
5027418Electro-optical inspection apparatus for printed-circuit boards with components mounted thereon
A printed-circuit board inspection apparatus for checking the condition of each circuit component mounted by soldering on a printed-circuit board is disclosed in which a luminance signal obtained from the reflected light scattering from the printed-circui...
06/25/1991
5027006Circuit for detecting a supply voltage drop and for resetting an initialization circuit
A circuit detecting the drop of a supply voltage applied between a high voltage supply terminal and a low voltage supply terminal for an integrated circuit. A trheshold circuit includes an input terminal connected to the high voltage supply terminal, an o...
06/25/1991
5025324Method of and apparatus for recording information on both a main recording medium and an endless recording medium for repeated event monitoring
In an audio/video information recording/playback apparatus with repeating monitor function which includes an endless type recording medium T-1 of about twenty seconds for one cycle and a main recording medium T-2 with tape ends, while both media are drive...
06/18/1991
5024910Optical information recording medium
This invention provides an optical information recording medium whose recording thin film is made of three components of GeTe, Sb2 Te3 and Sb derived from a GeTe alloy, an Sb2 Te3 alloy and excess Sb and which i...
06/18/1991
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