Quotables
"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4826080 | Fuel injection device for internal combustion engines The opening and closing movement of a injector valve member (32) which closes and temporarily opens discharge orifices (52) communicating with the combustion chamber of an internal combustion engine, for example a diesel engine, is controlled by the fuel ... | 05/02/1989 |
| 4827322 | Power transistor A power transistor according to the present invention improves breakdown resistance, in a monolithic structure for connecting a first-stage transistor and a second-stage transistor in Darlington connection, by constructing the same such that no parasitic ... | 05/02/1989 |
| 4817067 | Optical recording medium An optical recording medium which is capable of easily effecting a tracking operation in the writing/reading for an optical recording medium of a type in which a plurality of data record tracks and provided, in a recording region of the medium, so as to b... | 03/28/1989 |
| 4811304 | MDS decoder circuit with high voltage suppression of a decoupling transistor A dynamic random access memory device having common signal lines to transmit row address signals and column address signals, uses change-over switches to transfer those signals to a row decoder. Voltage suppression circuitry limits high voltage applied to... | 03/07/1989 |
| 4801987 | Junction type field effect transistor with metallized oxide film A gallium arsenide field effect transistor having a gate electrode of an alloy type p-n junction comprises source and drain electrodes formed on an n-type gallium arsenide region, a gate electrode of metal such as zinc or cadmium or an alloy of zinc or ca... | 01/31/1989 |
| 4787615 | Device for automatically supplying/discharging photosensitive material in an inclined-type step and repeat machine A device for supplying/discharging PS plates in an inclined-type step and repeat machine having a rearwardly inclined exposing table which includes a supplying holder disposed on a side of the exposing table for supplying the PS plate thereto, the holder ... | 11/29/1988 |
| 4737979 | Automatic telephone answering device with paging function A record/play unit and a tape controller in an automatic telephone answering device with a paging function that sets an incoming message tape in a record mode in response to a beep tone generated upon completion of the sending of a first, normal, outgoing... | 04/12/1988 |
| 4727443 | Method of protecting a magnetic recording medium in a magnetic recording/playback system and apparatus therefor A method of protecting a magnetic recording medium includes measuring a time period over which a main power supply continues to remain in an off state and the magnetic recording medium continues to remain loaded at a predetermined position. If the measure... | 02/23/1988 |
| 4708904 | Semiconductor device and a method of manufacturing the same A semiconductor device and a method of manufacturing the same which comprises a semiconductor substrate and a conductive region formed thereon in multilayer structure of a film of refractory metal or refractory metal silicide inferior in corrosion resista... | 11/24/1987 |
| 4707690 | Video display control method and apparatus having video data storage To improve data storage efficiency in a video display system having a video data memory (4) data for display is read out from the memory in a time shared manner. Addressing of the memory is controlled by an address multiplexer (7) in turn controlled by an... | 11/17/1987 |
| 4705705 | Process for the production of slides with delimited reaction fields, and the slides produced by the process A process for the production of slides with one or more reaction fields, which are bounded by a hydrophobic surface coating and which, for the fixing of the preparations to be examined, are coated with substances having an affinity therefore is characteri... | 11/10/1987 |
| 4706113 | Contour detecting filter device using PAL samples of composite video signals without separation of luminance signals therefrom A contour detecting filter device samples composite video signals of the PAL system by sampling signals at a frequency four times the chrominance subcarrier frequency thereof through an A-D converter (2), to input sampling value series thus sampled in a d... | 11/10/1987 |
| 4706157 | Semiconductor intergrated circuit First and second semiconductor circuits are interconnected by a transmission circuit within an integrated circuit powered by a common voltage supply. The first semiconductor circuit is operative when the voltage applied to the integrated circuit is at a f... | 11/10/1987 |
| 4704927 | Cutting reproduction images out of a sheet of exposed film A method of cutting reproduction images from a sheet of photosensitive film on which the images are recorded comprises controlling a cutting means in accordance with position data of exposed areas corresponding to at least one original.... | 11/10/1987 |
| 4705083 | Method and machine for batching coloring agents into paints and varnishes A machine for automatically batching coloring agents for paint or varnish is disclosed. The machine includes a computerized method for calibrating the amount of coloring agent dispensed with solenoid valves which calculate the viscosity and the delay time... | 11/10/1987 |
| 4705317 | Container for truck platform A container for mounting on the platform of a truck comprises a horizontally elongate first wall extending longitudinally of the truck platform and a second wall forming a rear wall of the container and extending at right angles from one end of the first ... | 11/10/1987 |
| 4705599 | Method for fabricating bipolar transistor in integrated circuit In a method for fabricating a bipolar transistor in accordance with the present invention, a base electrode (9a) of metal silicide is formed being separated from an emitter region (7) only by the thickness of a double-layered insulator film (109, 203).... | 11/10/1987 |
| 4702796 | Method for fabricting a semiconductor device The present invention is a method for fabricating a semiconductor device, wherein impurity is selectively diffused to surround a region (7) of a second conductivity type as a bit line formed on a semiconductor substrate (1), thereby forming an impurity di... | 10/27/1987 |
| 4702797 | Method of manufacturing semiconductor memory device A method of manufacturing a semiconductor device comprises the steps of forming memory cell portions (2, 4, 6, 11) on a p- -type semiconductor substrate (1), forming a gate insulator film (5) and a gate electrode (3) each having a larger width,... | 10/27/1987 |
| 4703363 | Apparatus for smoothing jagged border lines Jagged border lines between image components of a reproduction image or the image of a display are smoothed visually at first by giving weight coefficients to a center pixel and the surrounding pixels thereof, and then by obtaining values for designating ... | 10/27/1987 |
| 4703494 | PCM signal transmission system In transmission of PCM signals resulting from sampling and quantizing analog signals, the PCM signals are modulated according to a desired rule of modulation and a synchronizing interval is provided for every given interval of time, the synchronizing inte... | 10/27/1987 |
| 4700890 | Protective device for spraying apparatus A protective cover for a spraying apparatus which sprays a liquid through a nozzle. The protective cover is capable of surrounding the high-pressure region of a ject of the liquid sprayed through the nozzle, and is provided in the inner circumference near... | 10/20/1987 |
| 4701813 | Method of protecting a magnetic recording medium in a magnetic recording/playback system and apparatus therefor A method of protecting a magnetic recording medium includes measuring a time period over which a main power supply continues to remain in an off state and the magnetic recording medium continues to remain loaded at a predetermined position. If the measure... | 10/20/1987 |
| 4701926 | Laser diode A laser diode in accordance with the present invention comprises: a substrate (11) of p-GaAs; a current constricting layer (12) of n-GaAs formed with a slit (13) over the substrate, wherein the slit is opened through the constricting layer and separates t... | 10/20/1987 |
| 4700457 | Method of making multilayer capacitor memory device A semiconductor device comprising a capacitor of a laminated structure and a method of manufacturing thereof, in which first conductive layer and second conductive layer of different materials or different compositions are stacked alternately with dielect... | 10/20/1987 |
| 4698250 | Method for the manufacture of a press felt and press felt The invention relates to a method for the manufacture of a press felt for a paper machine and a press felt manufactured by means of said method. The method comprises the manufacture of a seamed fabric and the needling of a fibrous layer on at least one si... | 10/06/1987 |
| 4695814 | Circuit breaker A circuit breaker having a thermal tripping device comprising a bimetal element and a heater has a holding member attached to the stationary part of the bimetal element, for holding the bimetal element and the heater at respective first end parts thereof.... | 09/22/1987 |
| 4695015 | Improvements relating to belts of inter-woven spiral wires A spiral wire, comprising adjacent thread spirals (1) positioned in pairs with loops thereof interlapping to form transverse rows of loops in the wire, and linking threads (2) inserted in the rows of loops. The opposite ends of the spiral wire are interco... | 09/22/1987 |
| 4695926 | Encapsulation and insulation of electronic circuit board structures An electronic circuit board, together with the components, circuits, and wiring patterns thereon, is encapsulated by a single heat-shrink tubing layer, or the like for insulation from environmental factors. A method for the encapsulation is disclosed, as ... | 09/22/1987 |
| 4693816 | Biological filter heating arrangement for treatment of waste water The invention concerns a heating arrangement for ambient air introduced into a biological filter intended for the treatment of waste waters. The arrangement comprises intake openings for outside air, a member for heating the outside air, a blower, for blo... | 09/15/1987 |
| 4694432 | Semiconductor memory device A semiconductor memory device comprises a plurality of row decoder circuits connected with word lines for selecting memory cells. The row decoder circuits include normal row decoder circuits and spare row decoder circuits which can be selected in place of... | 09/15/1987 |
| 4694314 | Semiconductor device A semiconductor device in which a capacitor of a switched-capacitor included in an RC network for defining the rise time of a programming high-voltage pulse signal of an EEPROM is formed of an oxide film having a thickness corresponding to the thickness o... | 09/15/1987 |
| 4692113 | System using electric furnace exhaust gas to preheat scrap for steelmaking Dust containing high-temperature gas exhausted from an electric steelmaking furnace is directed through scrap preheaters, wherein scrap that is to be charged into said electric furnace is preheated. The absorption of some of the heat from the exhaust leav... | 09/08/1987 |
| 4692788 | Semiconductor device with solder overflow prevention geometry A semiconductor apparatus comprises a semiconductor pellet having upper and lower main surfaces, and upper and lower protector plates against thermal stress soldered to the upper and lower main surfaces, respectively, of the semiconductor pellet wherein t... | 09/08/1987 |
| 4692879 | Method of and apparatus for forming the address signals of a screen memory of a half tone dot generator Halftone dots are formed pixel by pixel onto a photosensitive film of a size P×P in an improved manner by using a screen memory storing thresholds, each of which corresponds to each of m×n sub-cells of a halftone dot area of the size S×S. In accordance... | 09/08/1987 |
| 4692901 | Semiconductor memory A semiconductor memory comprises memory cells (15-18, 27-30), a data writing terminal (1), a data readout terminal (48), transistors (3-10, 35-42), address signal input terminals (23-26), subdecode signal input terminals (43-46), driving signal generating... | 09/08/1987 |
| 4691436 | Method for fabricating a bipolar semiconductor device by undercutting and local oxidation A method for fabricating bipolar transistors comprises a step of forming a multi-layered film consisting of a polysilicon film (600), a silicon nitride film (202) and a silicon oxide film (104) on an emitter region (7) and on an external base region (54, ... | 09/08/1987 |
| 4691364 | Bit pattern conversion apparatus A bit pattern conversion apparatus has bit vertical/horizontal conversion means for converting data at the same bit positions of n-bit data into n-bit data, double expansion conversion means for converting 1-bit data into 2-bit data and producing the 2-bi... | 09/01/1987 |
| 4691250 | Magnetic video reproducer with reversely recorded cue track A magnetic video reproducer outputs a plurality of pilot signals having different frequencies from a servo circuit (18) in a recording mode, to superpose the pilot signals on video signals outputted from a signal circuit (25) and record the same on video ... | 09/01/1987 |
| 4691240 | Image input device and a method of correcting input signals of the same Reference data for correction are obtained by performing main scanning of a reference plane by a photosensor in a defocusing manner through a lens system, to be stored in memories. Image data of the original read by the photosensor through the lens system... | 09/01/1987 |
