baber/WOPTO huggingface dataset:
Patent TW-427983-B (TW)
Title: Method for the preparation of melamine
Inventor: VAN WIJCK JULIUS GERARDUS THEO
IPC: C07D251/62
Filed: 1997-07-22
Granted: 2001-04-01
Abstract: The invention relates to a high-pressure process for producing melamine from urea in which highly pure melamine is obtained by transferring melamine melt leaving a melamine reactor to a cooling vessel where the melamine melt is cooled to a temperature of between about 1 DEG C and about 30 DEG C above the melting point of melamine after which the liquid melamine can be transferred to a second cooling vessel in which vessel the melamine melt is further cooled using cold ammonia by which solid melamine is obtained.
Patent TW-342451-B (TW)
Title: D/A converter circuit
Inventor: JIRANO MASAZO
IPC: H03M1/10
Filed: 1997-07-30
Granted: 1998-10-11
Abstract: A D/A converter circuit comprising a ΔΣ modulator and having an addition mechanism of DC values for addition prevention oscillation on the signal input end and an output buffer on the signal output end; which is characterized in comprising: a comparator mechanism for comparing the output of the output buffer with a reference electric potential and outputting "H" or "L"; an addition/subtraction counter for receiving a clock impulse during the calibration period where in the input data is 0 and performing addition/subtraction according to the "H"/"L" output of the comparator mechanism; a current source circuit supplying an offset adjustment current to a switch group controlled by the output of the counter, and through the switch group selectively outputting the offset adjustment current to the plural current sources of the output buffer; and an inversion detection mechanism for detecting the inversion of the comparator mechanism and setting the output data of the addition/subtraction counter at a hold status.
Patent TW-375547-B (TW)
Title: Laser beam dividing apparatus
Inventor: KAWAMURA ATSUHIKO
IPC: B23K26/064
Filed: 1997-08-01
Granted: 1999-12-01
Abstract: This invention relates to a laser beam dividing apparatus, whereby it does not require high-precision positioning to divide the laser beam with high precision, and it can obtain good-quality divided laser beam at the center of the beam in the position of maximum light intensity. The invention consists of a dividing mirror 33, whereby laser beam reflected by said dividing mirror 33 is incident, and a relay mirror 34 formed by total-reflection mirrors and securely installed on the same mirror holder 32, whereby said relay mirror is used to exit the incident laser beam L caused by dividing mirror 33 in parallel direction. Said mirror holder 32 is arranged moving freely between laser beam dividing action position A that enables dividing mirror 33 to be situated in the light path of laser beam L generated by laser oscillator and retiring position B where dividing mirror 33 is situated outside the light path of laser beam L. When mirror holder 32 is situated at said laser beam dividing action position A, laser beam L from the laser oscillator is incident on the said dividing mirror 33.
Patent TW-460739-B (TW)
Title: Reflective liquid crystal display device
Inventor: ITOH YASUHISA
IPC: G02F1/1335
Filed: 1997-09-23
Granted: 2001-10-21
Abstract: A reflective liquid crystal display device includes a pair of substrates and a liquid crystal layer interposed therebetween. The liquid crystal layer includes a liquid crystal material and a dichroic dye contained therein, and long axis of liquid crystal molecules near the substrate is substantially parallel to the substrate. A plurality of parameters of the reflective liquid crystal display device are set so that a product KMcd of a value KM, a dye concentration c and a thickness d of the liquid crystal layer satisfies the following relationship: 3.OS<SP>2</SP>-7.3S+5.7 ≤ KMcd ≤ 14.7S<SP>2</SP>-15.1S+6.15, wherein, the value KM is a value defined by absorption coefficients for linearly-polarized light substantially parallel to and perpendicular to the liquid crystal molecules, and an order parameter S of the liquid crystal layer.
Patent TW-383242-B (TW)
Title: Holding means for blade of handsaw
Inventor: OKADA TAMOTSU
IPC: B23D49/10
Filed: 1997-09-24
Granted: 2000-03-01
Abstract: A holding means for a blade of a handsaw comprising: two plate members facing to each other and serving as a mounting part for a spare blade, one of the plate members being provided on the surface with a receiving part for retaining a cut formed on the blade; and a tightening member arranged at the other of the plate members, the tightening member having a projection, which is fit in a mounting hole formed on the blade, and a pressing surface to contact with an outer surface of that plate member, whereby when the tightening member is turned, with the blade being inserted between the two plate members, the projection enters the mounting hole of the blade and the pressing surface presses the outer surface of that plate member, thereby allowing the blade to be tightened and fixed in a manner of being firmly sandwiched between the plate members.
Patent TW-350112-B (TW)
Title: Silicon wafer evaluation method
Inventor: MOTOURA HISAMI
IPC: H01L21/66
Filed: 1997-10-02
Granted: 1999-01-11
Abstract: A sort of silicon wafer evaluation method, including: submerging silicon wafers with a ground mirror into diluted hydrofluoric acid solution; cleaning of the silicon wafer surface; thermal treatment of the silicon wafer with cleaned surface in oxygen ambient, for forming thermal oxidized layer; forming on said thermal oxidized layer a plurality of crystal silicon electrodes having a predetermined space and predetermined number; provision a voltage at each of the electrodes between said predetermined number of multi crystal silicon electrodes and silicon crystal wafers; determination of the mirror processing grinding process quality based on the detected leakage current collapse field intensity of the oxidized layer insulation.
Patent TW-354442-B (TW)
Title: Phase shift encoded subchannel
Inventor: ZEHAVI EPHRAIM
IPC: H04B7/26
Filed: 1998-05-02
Granted: 1999-03-11
Abstract: A method for emitting a power controlled instruction through an inverse chain signal ,the signal is process by CDMA technology, comprising the steps of: (a) encoding the inverse chain signal by a first order phase rotation if the control instruction is a first instruction; and (b) encoding the inverse chain signal by a second order phase rotation if the control instruction is a second instruction.
Patent TW-349909-B (TW)
Title: Hot transfer printer
Inventor: YOROZU HIDENORI
IPC: B41J32/00
Filed: 1997-12-19
Granted: 1999-01-11
Abstract: A sort of hot transfer printer, having: a platform disposed in the direction of printing mesh, a color tape cartridge in the box for housing of the ink tape, cartridge carrier on said platform, having a check for said color tape cartridge, a cartridge with a plurality of cartridge holders disposed in opposite of said carrier, with a check for said color tape cartridge, a drive for driving said cartridge and said cartridge carrier in opposite approach, cartridge switch driven by said drive for said cartrige and said cartridge carrier be in opposite touch and said color tape cartdrige switching between said cartridge carrier and said maintainer, and movable element and fixed element disposed on said cartridge carrier and cartridge maintainer for said color tape cartridge.
Patent TW-363033-B (TW)
Title: A seat for an aircraft cabin, stowable table for a vehicle accommodation unit, and an arrangement of seat in an aircraft
Inventor: PARK JAMES WILLIAM
IPC: B64D11/06
Filed: 1998-01-15
Granted: 1999-07-01
Abstract: A seat for, for example, an aircraft has an open outer shell which embraces a seat portion, a seat back, a headrest and a footrest when the seat is in an upright position. Also embraced by the shell are a pair of arm rests. The seat is reclinable into a bed configuration such that the seat portion is moved forwardly out of the open end of the shell. Simultaneously, the arm rests are movable between the raised position and the position substantially flush with the seat portion. In the bed configuration the removal of the arm rests from the raised position significantly increases the width of the bed, thus enhancing the comfort of the user.
Patent TW-406228-B (TW)
Title: Reliable event delivery system
Inventor: KAILASH
IPC: G06F9/46
Filed: 1998-02-20
Granted: 2000-09-21
Abstract: A reliable event delivery system for use in a distributed event driven system in which one or more servers are each connected by a reliable communication transport system to a client station. Each server communicates event messages over a reliable transport system to the client station for execution. Receipt of the event messages at the client station transport protocol level is guaranteed by the reliable transport system. Guaranteed delivery at the client station's event execution level is achieved by the client station providing an event execution acknowledgment to the server. Another embodiment provides for secure and reliable event delivery by using a second transport system for use by the client station for requesting a confirmation from a server that an event message received over the first transport system was sent from the server and intended for the client.
Patent TW-384552-B (TW)
Title: Thin type cell
Inventor: AKASHI HIROYUKI
IPC: H01M50/528
Filed: 1998-02-23
Granted: 2000-03-11
Abstract: A thin type cell having superior air-tightness and mechanical strength. The thin type cell is made up of a cathode 1, an anode 2 and an electrolyte 3, sheathed within a moisture-proofing multi-layered film 4 formed by a high molecular film and a metal foil. A pair of electrode terminals 5, 6 interconnecting electrodes and external terminals are formed of a netted or porous electrically conductive member. By using the netted or porous electrically conductive materials as the electrode terminals 5, 6, the electrode terminals 5, 6 can be firmly bonded to the moisture-proofing multi-layered film 4. Moreover, by increasing the thickness of high molecular film layer at the  sealing portion X passed through by the electrode terminals 5, 6, shorting can be prevented from occurring.
Patent TW-445588-B (TW)
Title: Manufacture method for via structure in the inter-metal dielectric layer
Inventor: JANG SHIUN-MING
IPC: H01L21/768
Filed: 1998-03-20
Granted: 2001-07-11
Abstract: In order to reduce the device RC delay, low dielectric constant (low k) organic polymeric materials, such as poly(arylene ether) polymer, are used as inter-metal dielectric layer in the metallization process of integrated circuit manufacture. There are difficulties in forming via in such low k organic polymeric materials. In the conventional process of the formation of via in the inter-metal dielectric layer, pattern on the photo resist layer is transferred to a silicon oxide or nitride layer and an oxygen plasma etching procedure is performed to etch out a via structure and also remove photo resist layer using the silicon oxide or nitride as a hard mask. Because organic polymeric dielectric materials can be easily damaged by the oxygen plasma, quality of the device is affected due to the poor via profile flatness and shifting critical dimension. This invention provides a modified process to form via structure of inter-metal dielectric layer. It uses titanium nitride as hard mask and a solvent having no impact on the organic polymeric dielectric layer is employed to remove the photo resist. Then, the required via structure is formed by performing plasma etching process of carbon fluorine compounds (CxFy). This improves the side wall quality as no oxygen plasma etching damage would occur.
Patent TW-370474-B (TW)
Title: Flow rate adjustment apparatus for sprayer
Inventor: YAZAWA IWAO
IPC: B05B1/30
Filed: 1998-04-17
Granted: 1999-09-21
Abstract: A kind of flow rate adjustment apparatus for sprayer whose features are the valve assembly on the inner side above the body and there is a pushing spring as the pushing piston; and a cylindrical adjusting insert as the pole in the cylinder. The flow rate is adjusted by the spacing between the insert and the flow path of external perimeter.
Patent TW-391901-B (TW)
Title: Wire electric discharge machine
Inventor: MORO TOSHIO
IPC: B23H7/10
Filed: 1998-06-04
Granted: 2000-06-01
Abstract: A wire electric discharge machine provided with upper and lower wire guides which have flow passages through which a wire electrode (2) and a processing fluid are passed, comprising a jet nozzle (140) engaged fixedly with an outer circumferential surface of an outer end portion of the upper wire guide and adapted to guide the wire electrode (2) to a hole of the lower wire guide by a fluid, a processing fluid nozzle (147) covering the jet nozzle (140) and having a through hole in a central portion thereof and a flange on an outer circumferential portion thereof, a stopper plate (143) fixing an outer circumferential surface, which includes the flange, of the processing fluid nozzle (147) and having a flow passage for supplying and discharging the fluid, and a sealed space (150) formed between the flange of the processing fluid nozzle (140) and stopper plate (143) and adapted to be expanded and contracted by the fluid flowing into or out of the space via the flow passage.
Patent TW-379412-B (TW)
Title: Manufacturing method of shallow trench isolation structure
Inventor: LIN JIAN-TING
IPC: H01L21/762
Filed: 1998-08-13
Granted: 2000-01-11
Abstract: The present invention discloses the manufacturing method of shallow trench isolation structure by first providing a semiconductor substrate (silicon substrate). It has a padded oxide layer, and accordingly a silicon ntride layer and a photoresist layer are formed based on it. Then processed with the microfilm and the etching process using the photoresist layer as the etching mask, the etching oxide layer and part of the semiconductor substrate can form the shallow trench. Then, using the thermal oxidation method for forming a linear oxide layer before using the chemical gas deposition to deposit a layer of stress buffering layer, which is the feature of the invention. Followed by stuffing the shallow trench with oxide and proceeding with chemical mechanical polishing to remove the residual oxide layer from the surface, further using wet etching to remove the silicon nitride layer and the padded oxide layer. The formed buffering layer may release stress, and avoiding thus the dislocation encountered in conventional manufacturing processes.
Patent TW-438737-B (TW)
Title: Method for manufacturing porous ceramic material
Inventor: LIN FENG-HUEI
IPC: C04B38/00
Filed: 1998-11-05
Granted: 2001-06-07
Abstract: A method for manufacturing porous ceramic material is disclosed, which at least comprises (a) providing an animal sponge bone, (b) heating the animal sponge bone to remove the organic materials, (c) soaking the organic materials removed sponge bone into phosphate buffer saline, and (d) after drying, sintering the sponge bone at a temperature of above 900 degree Celsius to obtain a porous ceramic material. By the present invention, there are porous ceramic materials produced, such as HAP/beta-TCP, HAP/beta-TCP/SCP, beta-TCP/SCP or beta-TCP, which are suitable to be a filling material for bone defect.
Patent TW-411666-B (TW)
Title: Infrared signal receiver with attenuating circuit
Inventor: OMATA TAKASHI
IPC: H04B10/116
Filed: 1999-01-19
Granted: 2000-11-11
Abstract: An infrared signal receiver has an infrared radiation sensor, an amplifier, a band-pass filter, an attenuator, a detector, and a waveform shaper. An output signal from the band-pass filter and an attenuated signal from the attenuator are supplied to the detector. The detector has a DC level shifter which produces a DC offset from the output signal from the band-pass filter and the attenuated signal from the attenuator, and adds the DC offset, as a detecting threshold voltage, to a voltage which turns on and off transistors of a differential amplifier of the detector.
Patent TW-373068-B (TW)
Title: Method and apparatus for evaluating internal film stress at high lateral resolution
Inventor: MICHAELIS ALEXANDER
IPC: G01L1/00
Filed: 1999-02-10
Granted: 1999-11-01
Abstract: The sample is made of at least one kind of the material and has a planar or smooth surface. To determine the internal stress, a calibration curve correlating to a set of first ellipsometric parameter amplitudes is generated. One first stress value is correlated to one first ellipsometric amplitude. Then, the sample for which stress is to be determined is rotated as a function of sample rotation angle alpha and is measured for a set of second ellipsometric parameter at a selected area of the sample to determine a second ellipsometric amplitude. The internal stress at the selected area of the sample is then determined from the calibration curve by using the second ellipsometric amplitude as an index to determine a corresponding stress value from the calibration curve.
Patent TW-411746-B (TW)
Title: Resist layer formation method and printed circuit board manufacturing method
Inventor: BANDO RYOTA
IPC: B05D1/36
Filed: 1999-03-26
Granted: 2000-11-11
Abstract: A method ensuring adequate supply of a liquid resist into the throughhold part and between fine line patterns of an electroconductive substrate is provided. After a liquid resist is applied onto an electroconductive substrate having a throughhole part with a forward rotating roll coater, a liquid resist is again applied over the earlier applied liquid resist over the substrate with a backward rotating roll coater before it dries, and is dried.
Patent TW-430602-B (TW)
Title: Mold element retaining system
Inventor: DISIMONE JOHN
IPC: B29C45/17
Filed: 1999-04-22
Granted: 2001-04-21
Abstract: A mold element retaining system and method includes a spigot to be connected to a mold or to a machine platen and retained in place by a retaining means operable to engage and release the spigot.  The retaining means is moved between a first configuration, wherein it engages the spigot and a second configuration wherein it releases the spigot by an actuator which, in a preferred embodiment, is a pneumatically operable piston.
Patent TW-421970-B (TW)
Title: Symbol sign directed phase detector
Inventor: WHITE HUGH E
IPC: H04N5/44
Filed: 1999-05-18
Granted: 2001-02-11
Abstract: A phase detector that uses symbol sign information to aid the phase error detection process to determine a phase error of a complex signal such as a vestigial sideband (VSB) signal. The phase detector comprises a subtractor having one input coupled to the I signal (i.e., an unquantized digital value that is sometimes referred to as a quasi-analog signal) and a second input coupled to the data output of a slicer (quantizer) representing the magnitude of a sample point within a symbol (i.e., a digital value representing one of M levels of the VSB signal). The unquantized signal is subtracted from the quantized I signal to produce a <delta>I signal. The I signal is also processed to determine the sign of the present symbol. A before-after symbol processor determines the sign values of a previous (before) symbol and a later (after) symbol and compares those signs to the sign of the present symbol. A change in signs from the before symbol to the after symbol will produce a substantial imaginary component in the phase error signal that can easily be tracked by the phase tracking loop. If the signs of the symbols (before-to-after) do not change, then the imaginary component of the phase error will be very small and nearly impossible to track and compensate. As such, the loop is disabled when the before-after processor detects such a symbol sign combination. As such the symbol sign information is used to ""correct"" or ""gate"" the phase error. This phase error signal is used in a digital television receiver to extract a data signal from a VSB signal for demodulation.
Patent TW-429597-B (TW)
Title: Ferroelectric memory device and method for fabricating the same
Inventor: YU YONG-SIK
IPC: H01L21/768
Filed: 1999-07-01
Granted: 2001-04-11
Abstract: A method for fabricating a ferroelectric memory device, comprising the steps of: providing a semiconductor substrate where a transistor having an impurity region is formed; forming a conduction layer for storage node over the substrate; forming a ferroelectric film on the conduction layer; patterning the conduction layer and the ferroelectric film to form a storage node and a dielectric film; forming a protection film for dielectric film over the semiconductor substrate to cover the storage node and the dielectric film; patterning the protection film to expose a selected portion of the dielectric film; and forming a plate node on the dielectric film.
Patent TW-424338-B (TW)
Title: Blue light LED with sapphire substrate and the manufacturing method thereof
Inventor: JUANG FENG-RU
IPC: H01L33/00
Filed: 1999-07-02
Granted: 2001-03-01
Abstract: The present invention relates to a blue light LED and the manufacturing method thereof, in particular to a blue light LED using sapphire as the substrate which is to etch at least a channel in the sapphire substrate and forming a gallium nitride thin film layer with approximately the same thickness on the upper and lower layers of the substrate respectively and making the gallium nitride material of the upper and lower layers to contact within the substrate channel; the positive pole and the negative pole are independently formed on the lower bottom of the gallium nitride thin film and on the top epitaxial layer of the light emitting diode on the substrate. Because the channel configuration can provide a channel for the current passing through the substrate between the positive and negative poles, it can become vertical light emitting diode die. Thereby, the present invention not only can greatly reduce the operation area of the dies, but also can simplify the following substrate polishing procedure so as to increase the production yield.
Patent TW-548235-B (TW)
Title: Process for the preparation of methyl ethyl ketone azine
Inventor: SCHIRMANN JEAN-PIERRE
IPC: C07C251/88
Filed: 1999-07-16
Granted: 2003-08-21
Abstract: The invention relates to a process for the preparation of methyl ethyl ketone azine, in which: (a) ammonia, hydrogen peroxide and methyl ethyl ketone are reacted in the presence of a working solution, in order to form an azine; (b) the working solution and the azine, optionally comprising unreacted methyl ethyl ketone and 2-butanol, are separated; (c) the working solution is recycled to the stage (a) after an optional treatment; (d) the methyl ethyl ketone and the 2-butanol are separated from the azine. The 2-butanol of the stream from the stage (d) is either bled off or dehydrogenated to MEK and recycled to the stage (a).
Patent TW-548187-B (TW)
Title: Film product comprising novel polyolefins
Inventor: THAKKER MAHENDRA T
IPC: B32B27/32
Filed: 1999-10-20
Granted: 2003-08-21
Abstract: Multi-layer film products comprising an inner or core layer made from polyolefin polymers produced by polymerizing an alpha-olefin in the presence of a catalyst including: a pro-catalyst having a magnesium halide; an aluminum halide; a tetravalent titanium halide; an electron donor; and a silane having the formula R1R2Si(OR3)(OR4), wherein R1 and R2 are each an H, C1-6alkyl, aryl, C5-12cycloalkyl, each of which may be unsubstituted, mono- or di-substituted, and R3 and R4 are H, C1-6alkyl, or a mono- or di-substituted C1-6alkyl; and a co-catalyst comprising an organometallic compound, or reaction products of the pro-catalyst and the co-catalyst. The film products have excellent clarity, superior dart impact, resistance to tear and favorable sealability characteristics.