William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 6603888 | Interpolating apparatus and method In multiplying circuits, filter coefficients are multiplied to tap outputs between the stages of delay circuits, respectively. The multiplication outputs are added by an adding circuit, thereby performing an interpolation arithmetic operation. Phase infor... | 08/05/2003 |
| 6603261 | Flat display device and fabricating method of the same To provide an AC driving type matrix plasma discharge display device which can reduce power consumption and a fabricating method of the same. First and second substrates 1 and 2 are disposed so as to oppose each other, and a first electrode group 21, which is ... | 08/05/2003 |
| 6602733 | Method for fabricating electronic circuit device, semiconductor device and electronic circuit device including bump bonding A method for fabricating an electric circuit device able to ensure bonding strength and bond bumps without occurrence of cratering or other mechanical damages. The method for fabricating an electric circuit device wherein a semiconductor device having a p... | 08/05/2003 |
| 6600580 | Hologram print system and holographic stereogram A single photographic subsystem 2 photographs an original image for a hologram and provides an image information file Fp. In addition, this subsystem provides a management information file Fm for storing management information about the image information ... | 07/29/2003 |
| 6597650 | Nonlinearity compensation circuit and method, control circuit and method for nonlinearity compenstation circuit and recording and/or playback apparatus employing the same A nonlinearity compensation circuit is disclosed which includes an inverse hyperbolic function generation circuit for converting differential currents corresponding to input signals in+ and in- into differential voltages which increase in proportion to an... | 07/22/2003 |
| 6597475 | Image recording apparatus and image recording method as well as recording medium An image recording apparatus and an image recording method can be suitably used for preparing a large number of edge-lit type holograms or holographic stereograms in a simple manner by copying. A hologram recording medium 11 is applied onto a principal su... | 07/22/2003 |
| 6596600 | Integrated injection logic semiconductor device and method of fabricating the same A logic circuit is formed of an I2 L cell structure in which a difference of switching speeds at every collectors in a multi-collector structure is small. In a semiconductor device in which an integrated injection logic cell including a constan... | 07/22/2003 |
| 6592771 | Vapor-phase processing method and apparatus therefor A method in which etching or ashing is conducted by providing satisfactory kinetic energy of reaction seeds such as ions or radicals without damaging a substrate, and an apparatus used in this method are provided. A predetermined film of for example polyc... | 07/15/2003 |
| 6590570 | Comparator, display apparatus using comparator for driving system, and driving method for comparator A comparator which can operate stably against an absolute value distribution of a threshold voltage among MOS transistors and has a wide allowable range against the threshold voltage dispersion and besides allows reduction in power consumption. The compar... | 07/08/2003 |
| 6589349 | Apparatus for forming silicon oxide film and method of forming silicon oxide film An apparatus for forming a silicon oxide film which has a process chamber and is for thermally oxidizing a surface of a silicon layer by introducing water vapor into the process chamber, and which further has dew-formation prevention/evaporation means for... | 07/08/2003 |
| 6584056 | Disk recording and/or reproducing device A recording and/or reproducing apparatus for a disc-shaped recording medium having a rotary shaft and a driving pin provided at an offset position relative to this driving shaft, the rotary shaft being passed through a rotary shaft inserting opening forme... | 06/24/2003 |
| 6583955 | Tape cassette having first and second write inhibit mechanisms This invention is directed to a tape cassette in which a tape body is wound across a pair of tape reels rotatably supported by the cassette body. At the cassette body, there are provided a first write protect mechanism provided in correspondence with the ... | 06/24/2003 |
| 6583828 | Liquid crystal display device and its manufacturing method A liquid crystal display device having a thin-film transistor formed on a substrate for driving an pixel electrode comprises a holding capacitor line underlying a thin-film semiconductor layer which forms the thin-film transistor, and a first holding capa... | 06/24/2003 |
| 6583490 | One time programmable semiconductor nonvolatile memory device and method for production of same A semiconductor nonvolatile memory device improving reproducibility and reliability of insulation breakage of a silicon oxide film and capable of reducing the manufacturing cost and a method for production of the same, wherein each of the memory cells arr... | 06/24/2003 |
| 6577585 | Skew adjustment for disk drive apparatus The hard disk apparatus has first and second skew adjust members 21 and 22 for adjusting inclinations or an inclination of a main guide shaft 16 and/or a sub-guide shaft 17. The first and second skew adjust members comprise: bearing parts 41 or a bearing ... | 06/10/2003 |
| 6576533 | Method of forming semiconductor thin film of group III nitride compound semiconductor. A semiconductor thin film includes an underlying semiconductor layer in which a plurality of facets are arranged, and a selectively grown/buried semiconductor layer formed to cover the underlying semiconductor layer, wherein the facets are formed by plane... | 06/10/2003 |
| 6573511 | Electron beam irradiation system and electron beam irradiation method A focusing stage is provided on a slide table of a support mechanism portion on which a master is supported, at a position adjacent to the master. At the time of recording, first, the focusing stage is irradiated with an electron beam to thereby focus the... | 06/03/2003 |
| 6559590 | Paint for heat absorbing film, heat absorbing film and color CRT A paint for forming a heat absorbing film which exhibits a good binding property for binding with a conductive reflecting film, contains a black pigment, and a compound represented by Si(OR1)n R2m, where n+m=4, ... | 05/06/2003 |
| 6556373 | Disk apparatus, method of accessing head thereof to disk-like recording medium, and method of retracting the same A disk storage apparatus has a magnetic head (8) that is completely retracted outside of a disk cartridge, except upon a reading/writing operation. The magnetic head (8) is inserted into the disk cartridge (16) only upon the reading/writing operation. The... | 04/29/2003 |
| 6532268 | Receiving apparatus and transmitting/receiving system A transmitting/receiving system and a receiving apparatus wherein a plurality of information signals having mutually different frequency bands processed through predetermined modulation are transmitted in time series from a transmitting apparatus via an e... | 03/11/2003 |
| 6515916 | Column switch in memory device and cache memory using the same A cache memory is provided with a tag memory for storing tag information and a column switch having an XOR calculation function, XOR calculation for judging whether the tag information and an address match is performed on every bit on a signal having a sm... | 02/04/2003 |
| 6515500 | Method and apparatus of testing and analyzing CMOS integrated circuit A method of testing a CMOS integrated circuit including the steps of applying a test signal to a CMOS integrated circuit under test and measuring a quiescent power supply current at a plurality of strobe points, calculating defect current estimates corres... | 02/04/2003 |
| 6506988 | Inhibitor switch An inhibitor switch is disclosed, including a permanent magnet and a magnetic sensor which detects a magnetic force of the permanent magnet in a non-contacting state and outputs a linear change in a voltage value in response to a change in a relative posi... | 01/14/2003 |
| 6504215 | Electro-optical apparatus having a display section and a peripheral driving circuit section A single crystal silicon is graphoepitaxially grown using a step formed on a substrate as a seed by a catalyst process, and the obtained single crystal silicon layer is used for a dual gate type MOSTFT in an electro-optical apparatus such as a display sec... | 01/07/2003 |
| 6503104 | Adaptor for connecting between terminals with multiple pieces An adaptor for a connector to be interposed between a first terminal unit having many contact pieces and a second terminal unit having many contact pieces that are used for input/output of a video signal, an audio signal, and a signal associated therewith... | 01/07/2003 |
| 6501466 | Active matrix type display apparatus and drive circuit thereof Each of picture elements comprises an input transistor for accepting a signal current from a data line when a scanning line is selected, a conversion transistor for converting the signal current into a voltage and for holding thus converted voltage, and a... | 12/31/2002 |
| 6496276 | Printer having an infrared data receiver There is provided a printer, in which print data from an external electronic appliance is transmitted to a computer and processed therein, and the processed data is supplied to a printing unit, and then a picture based on that processed print data can be ... | 12/17/2002 |
| 6496076 | PLL circuit and recorded data reproduction apparatus A PLL (phase-locked loop) circuit is configured with a phase-error detection circuit comprises the following: a provisional judge circuit for provisionally judging a data signal being input to an A/D converter into three levels of 1, 0, and -1; a pattern ... | 12/17/2002 |
| 6496041 | Logic cell and logic circuit using the same A logic cell capable of realizing a high speed logic operation without using a pipeline register and capable of realizing a simplification of the circuit structure and a lowering of the power consumption, and a logic circuit using the same, wherein an inp... | 12/17/2002 |
| 6495976 | Color purity measuring method and color purity measuring apparatus The invention is intended to enable the easy measurement of the amount of color purity at each of many measured points. An adjusting coil (9) is provided at a neck portion of a color cathode ray tube (1). Also, a color image pickup means (4) for photograp... | 12/17/2002 |
| 6487166 | Disc cartridge A disc cartridge has an optical disc (13), first and second halves (15), (16) and a slide shutter (14), in which the slide shutter (14) is removably supported between the first and second halves (15) and (16), whereby it is possible to prevent erroneous o... | 11/26/2002 |
| 6483796 | Recording medium, information reproducing apparatus, information recording apparatus, and information recording and reproducing apparatus An information reproducing apparatus emits an electron beam E from an electron gun 40 to a signal layer 12 of a disk 1, detects a change of the incident intensity of the reflection thereof via a detector 42, and reproduces the information of the disk 1 by... | 11/19/2002 |
| 6480228 | Solid-state image sensing device When a signal output by a solid-state image sensing device is clamped to a predetermined reference potential, a high voltage generated in a transfer suspension period after the clamping is generally supplied to an A/D converter as generated. A sample/hold... | 11/12/2002 |
| 6476576 | Motor control apparatus A motor control apparatus according to the present invention comprises: a servo circuit for outputting a pulse width modulation signal; a low-pass filter for receiving the pulse width modulation signal outputted by the servo circuit as an input; and a dri... | 11/05/2002 |
| 6476416 | Thin-film semiconductor apparatus, display apparatus using such semiconductor apparatus, and method of manufacturing such display apparatus The invention provides a thin-film semiconductor apparatus which is capable of preventing wiring formed in the thin-film semiconductor apparatus from incurring inter-layer short-circuit otherwise caused by improper step coverage of a gate insulating film,... | 11/05/2002 |
| 6471814 | Method of manufacturing plano lens Disclosed is a method of accurately, simply forming a light absorbing layer for improving contrast in a transmission screen including micro glass beads two-dimensionally arranged. A light absorbing layer made from toner is formed on glass beads held in a ... | 10/29/2002 |
| 6459395 | Digital-to-analog converter and display unit with such digital-to-analog converter In a reference-voltage-selection-type D/A converter, the channel widths of transistors of MOS switches of gradation selecting units are weighted depending on the selected gradation. Specifically, the channel width of the MOS switches Qn11, Qn12 is represe... | 10/01/2002 |
| 6452328 | Electron emission device, production method of the same, and display apparatus using the same The present invention provides an electron emission device assured to emit electrons without requiring film thickness control on the order of submicrons and a production method of the electron emission device as well as a display apparatus using the elect... | 09/17/2002 |
| 6445649 | Apparatus and method for controlling movement of an optical head An information recording/reproduction apparatus is adapted to quickly move the optical pickup to a desired position on the optical disk being used with it without emitting any sound of collision. The information recording/reproduction apparatus adapted to... | 09/03/2002 |
| 6428840 | Method of producing cathode ray tube and method of forming films Disclosed is a method of forming a reflection film and a heat absorbing film on the inner surface of a panel of a cathode ray tube by using a vacuum vapor-deposition process. In the case of using aluminum as the material for the reflection film, chromium ... | 08/06/2002 |