Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 5732152 | Handwritten character entry method and device having two display areas In an area of a tablet where a handwritten character is written for entry, the result of the recognition of the handwritten character is displayed by replacing the handwritten character written therein; at the same time, the recognition result is also dis... | 03/24/1998 |
| 5731162 | Method and analytical device for simultaneous immunoassay The present invention concerns a method and an analytical device for the simultaneous detection of at least two organisms selected from the group consisting of Chlamydia trachomatis (CT), Neisseria gonorrhea (NG), and Mycoplasma (M) from a single specimen... | 03/24/1998 |
| 5730971 | Potentiator for interferon and an antiviral activity-potentiating composition containing interferon and its potentiator A potentiator for interferon and an antiviral activity-potentiating composition containing interferon and its potentiator are provided. The potentiator is a mixture of flavin adenine dinucleotide (FAD) and porcine liver extract.... | 03/24/1998 |
| 5729500 | Draw with variable internal operation frequency A DRAM to which a setting can be made to determine an internal operation frequency thereof includes a memory cell array, sense amplifiers writing data to and reading data from the memory cell array, a pair of data-bus lines, and gates connecting between t... | 03/17/1998 |
| 5728835 | Substituted cyclic amine compound, production process thereof and pharmaceutical composition for circulatory organ use containing the same A substituted cyclic amine compound represented by the following general formula (1) ##STR1## wherein each of R1 to R5 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or the like, A represen... | 03/17/1998 |
| 5728530 | Method of detecting variant nucleic acids using extension oligonucleotides which differ from each other at both a position corresponding to the variant nucleic acids and one or more additional positions Method of detecting nucleic acids whose nucleotide sequences differ from one another at a position X. The method uses a set of oligonucleotides where the nucleotides found at position X are complementary to a variant nucleic acids only at this position X.... | 03/17/1998 |
| 5728056 | Lumbago correcting belt A lumbago correcting belt is disclosed, comprising a belt body adapted to be attached to a lumbar region of a human body to enclose and surround the iliac bones and a pair of tightening members made of a flexible material the tightening members being disp... | 03/17/1998 |
| 5727530 | Evaporative fuel-processing system for internal combustion engines for vehicles An evaporative fuel-processing system for an internal combustion engine for use in a vehicle. A passage extends between the fuel tank and the intake passage of the engine, for guiding evaporative fuel generated in the fuel tank, for processing, and across... | 03/17/1998 |
| 5726961 | Optical pickup control system for optical discs having different reflectivities An optical pickup control system is provided for recording and reproducing information on various types of discs which have different reflectivities of light. The pickup has a semiconductor laser radiating a laser beam, and a photodetector detecting refle... | 03/10/1998 |
| 5726703 | Stereoscopic image display system A stereoscopic image display system has a left/right stereoscopic image signal generator for alternately generating left-eye and right-eye image signals at every field, a screen for projecting image light, a liquid crystal shutter. The liquid crystal shut... | 03/10/1998 |
| 5726232 | Heat resistant lubricative resin composition A heat-resistant, lubricative resin composition which is low in friction and wear-resistant, and which is less likely to attack a soft alloy such as aluminum alloy, and a heat-resistant sliding bearing formed from such resin composition. Such heat-resista... | 03/10/1998 |
| 5725907 | Metal material formed with fluorocarbon film, process for preparing the material and apparatus made with use of the material A metal material characterized in that the material comprises a substrate metal, a film comprising a nickel fluoride layer and formed on the substrate metal, and a film comprising a carbon layer and formed on the film.... | 03/10/1998 |
| 5725072 | Speed change gear device with lubricating auxiliary vessel In a speed change gear device having a gear shaft (30 in FIG. 1), bearings (32A, 32B), and a housing (21) which accommodates the gear shaft and the bearings therein; lubricating auxiliary vessels (50, 60) are mounted within the housing (21) so as to catch... | 03/10/1998 |
| 5724105 | Television signal receiver A video detection unit is provided with a first control loop including a phase detector for comparing phases between the output of a voltage-controlled oscillator and the carrier of a VIF signal to output a control voltage, and a second control loop inclu... | 03/03/1998 |
| 5723230 | Oligosulfide type electrode material and secondary battery containing such electrode material There is provided a disulfide type electrode material that can realize a remarkably improved energy density if used in a secondary battery as well as a secondary battery that shows a remarkably improved energy density. Such an organic electrode material c... | 03/03/1998 |
| 5721505 | Delay circuit manufacturable by semiconductor elements A delay circuit includes a first filter circuit responsive to an input signal and outputting a first output signal having first-order low pass characteristics with respect to the input signal, a second filter circuit responsive to the input signal and out... | 02/24/1998 |
| 5720956 | Method of controlling the reactivity of human blood platelets by oral administration of the extract of the maritime pine (pycnogenol) A method of inhibiting platelet aggregation with an agent which is able to normalize and enhance platelet reactivity without adversely affecting the bleeding time. The method additionally prevents adrenaline-induced platelet aggregation.... | 02/24/1998 |
| 5721513 | Gain controlled amplification circuit having differential amplifier An input signal is applied to a first input terminal of a differential amplifier through an input resistance, and a feedback signal is applied to the first input terminal through a feedback resistance. A reference potential is applied to a second input te... | 02/24/1998 |
| 5720924 | Storage system for test elements The system has several test elements, each of which is individually sealed to be impermeable to water vapor. The system storing test elements facilitates removal of test elements and protects the test elements contained in it against effects from the outs... | 02/24/1998 |
| 5720394 | Sample supply unit for settling classification system A tube-type sample supplying portion 1 is provided upright above a classification tank 2. A sample inlet pipe 5, which communicating with a culture tank 3, is connected to the lower part of the sample supplying portion 1. An outlet pipe 6, which communica... | 02/24/1998 |
| 5720265 | Fuel metering control system for internal combustion engine A fuel metering control system for an internal combustion engine, having a feedback loop. In the system, the quantity of fuel injection (Tim) to be supplied to the engine (plant) is determined outside of the feedback loop. A first feedback correction coef... | 02/24/1998 |
| 5719907 | Phase jitter extraction circuit and phase jitter cancellation circuit The invention provides a phase jitter extraction circuit and a phase jitter cancellation circuit for use with a reception section of a communication apparatus such as a modem used to transmit data using a telephone line or a private line, which are improv... | 02/17/1998 |
| 5719638 | High speed image density converting apparatus A high speed image density converting apparatus includes an amplifier for amplifying an analog video signal, an A/D converter for converting an output of the amplifier into a digital video signal, and capable of setting a reference voltage, a memory for s... | 02/17/1998 |
| 5719052 | Simple examination method of infection with Helicobacter pylori and device therefor There are described a simple examination method of infection with Helicobacter pylori possibly presenting in a gastric mucosa, and a device therefor. The examination is conducted by collecting gas in gastric cavity, and measuring mainly ammonia and additi... | 02/17/1998 |
| 5718934 | Deep frying method The invention provides a method of deep frying coated ingredients, while giving high-frequency AC energy to frying oil or spraying water decreased in ORP value, method of suppressing degradation of the frying oil, an apparatus for giving high-frequency AC... | 02/17/1998 |
| 5718332 | Lock container for containing compact disks and the like Disclosed is a lock container for compact disks and the like comprising a casing having an opening to permit a compact disk to get in or out on its rear side, and a push button-like locking means provided to the top side of the casing to prevent the compa... | 02/17/1998 |
| 5718049 | Axle bearing assembly and method of measuring bearing clearances The end surface 2e of the press-fit portion 2c of the axle 2 is machined with high precision to serve as a reference surface for measuring the negative bearing clearance upon completion of the assembly. The inner ring 3 is press-fitted on the press-fit po... | 02/17/1998 |
| 5717256 | Power supply apparatus and electronic appliance equipped with the power supply apparatus A power supply apparatus includes a battery, a voltage converter for converting the output of the battery to a different D.C. voltage by ON/OFF action of a main voltage converter control switch circuit, and a device for estimating a remaining capacity of ... | 02/10/1998 |
| 5716983 | Use of coumarins and carbostyrils as PLA2 inhibitors, new coumarins and carbostyrils, processes for the production thereof and pharmaceutical agents Use of compounds of formula I ##STR1## in which R1, R2, R3, R4, Y and Z have the meanings stated in the claims, tautomers thereof as well as their salts with non-toxic acids or bases for the production of p... | 02/10/1998 |
| 5715754 | Offset printing method An offset printing method is suitable for high-precision printing. Errors caused by the relative movement between a blanket cylinder 4 and a form plate 10 and the rotation of the blanket cylinder 4 on its axis which are produced in a step of transferring ... | 02/10/1998 |
| 5715440 | Branch instruction executing device for tracing branch instruments based on instruction type A branch instruction executing device, for sequentially executing instructions in a pipeline process, a) decodes a conditional branch instruction, b) provides a debug exceptional producing flag for indicating the existence of the execution of the debug ro... | 02/03/1998 |
| 5715358 | Method for recording at least two picture signals and method of reproduction at least two picture signals In the event of recording a picture signal for left eye and a picture signal for right eye, a picture signal for one of right and left eyes limited in band by a low pass filter as being an additional signal and a picture signal for the other eye as being ... | 02/03/1998 |
| 5715257 | System for re-transmission in data communication An SR (Selective Repeat) ARQ system with limited buffer memory is realized by modifying a part of a user data area. A transmitter side modifies a part of a user data area in a data frame so that it differs at least one bit from corresponding part of a fra... | 02/03/1998 |
| 5715203 | Semiconductor memory device and automatic bit line precharge method therefor The present invention relates to a semiconductor memory device having a bit line precharge circuit which precharges bit lines forming a data transfer path coupled to cells. The memory device is further provided with a first control circuit which controls ... | 02/03/1998 |
| 5714945 | Bidirectional communication method for CATV system An exciting command is transmitted from a center of a CATV system to a plurality of terminals in a block at the same time for exciting circuits in each terminal. A command to request each of the terminals to send response data is transmitted from the cent... | 02/03/1998 |
| 5713198 | Exhaust gas-purifying device for internal combustion engines An exhaust gas-purifying device for an internal combustion engine has an adsorbing device arranged in an exhaust passage of the engine for adsorbing unburnt fuel components in exhaust gases from the engine, a catalytic converter arranged in same at a loca... | 02/03/1998 |
| 5712844 | Optical pickup There is provided an optical pickup for use with an optical disk, which is capable of detecting tracking error signals and focusing error signals with good precision even when applied to the SCOOP method, and includes a light-emitting device having a ligh... | 01/27/1998 |
| 5712167 | Method of measuring Amadori compound by light scattering In order to quantitatively measure an Amadori compound by a simple optical method utilizing light scattering, a sample containing an Amadori compound which is stored in a cell is irradiated with excitation light from an He--Ne laser unit so that scattered... | 01/27/1998 |
| 5711697 | Robot control system When the amount of a change in load current supplied to a grinder is not more than a predetermined threshold value, the amount of piercing into a workpiece by the grinder is controlled according to the load current. When the amount of a change in load cur... | 01/27/1998 |
| 5711143 | Overhead cable and low sag, low wind load cable An overhead cable provided with a plurality of segment strands of a sector-shaped cross-section twisted at the outermost layer and having grooves of a substantially arc-shaped cross-section at the surface at the adjoining portions of the segment strands. ... | 01/27/1998 |
