baber/WOPTO huggingface dataset:
Patent TW-483986-B (TW)
Title: Dry vacuum pump
Inventor: YOSHIMURA MASASHI
IPC: F04C13/00
Filed: 1998-07-08
Granted: 2002-04-21
Abstract: In a dry vacuum pump consisting of a casing having an inner cylindrical portion (la) communicated with an intake port (6) and a discharge port (7); two screw rotors (15) each including a shaft portion (15b) supported on the casing and a spiral tooth-shaped portion (15a) provided around the shaft portion, the screw rotors being accommodated in the inner cylindrical portion (la) with their tooth-shaped portions (15a) interlocked with each other; timing gears (16, 19) fitted to the shaft portions (15b) of the screw rotors (15) for engagement with each other; and lock mechanisms (17) which secure the timing gears (16, 19) to the shaft portions (15b), the shaft portion (15b) and the tooth-shaped portion (15a) of each screw rotor are integrally cast from spheroidal graphite cast iron containing Ni at the ratio of 20-30%. The problem that the degree of vacuum lowers due to separation of coated resin, which accompanies dry vacuum pumps which suck corrosive gas, is solved. Further, with the length of the tooth-shaped portion (15a) being taken as L, a taper of 1/(20L) is provided from a center of the tooth-shaped portion (15a) toward the discharge side, and such a ground surface as will make the diameter of the tooth-shaped portion (15a) smaller by 3/100-4/100 mm is provided from a position at 10mm on the intake side from the center of the tooth-shaped portion (15a) toward the discharge side. This prevents baking or the like of the tooth-shaped portion (15a). Further, N2 gas is supplied to the casing, and a discharge line (40) which connects the discharge port (7) and a scrubber (32) is provided as a straight line without a silencer. This enhances the heat capacity of the gas fed from the discharge port 7 and prevents accumulation of products in the discharge line (40).
Patent TW-413767-B (TW)
Title: Telecommunication device realizing information transmission and reception
Inventor: JANG JENG
IPC: G06F13/14
Filed: 1998-07-22
Granted: 2000-12-01
Abstract: A telecommunication device realizing data transmission and reception is used to process the external telecommunication information from a telephony circuit and the internal telecommunication information from a data processing device, for example, the fax format information and voice information. It includes the telephone telecommunication device used to process the conversion issue between the general digital information and analogue signals as well as the detachable processing unit managing the said internal and external telecommunication information. The detachable processing unit comprises a storage part, which can store the external telecommunication information and internal telecommunication information in advance. After connecting with telephone network, the pre-stored internal information can be transmitted by the device. The device persist in a stand-by state for receiving the incoming external telecommunication information.
Patent TW-408070-B (TW)
Title: Automated vehicle washing systems using concentrated detergents
Inventor: BAGNARA THOMAS J
IPC: B01F5/04
Filed: 1998-11-05
Granted: 2000-10-11
Abstract: Retrofit systems are provided to convert existing automated vehicle washing systems from using conventional car wash chemicals to highly concentrated chemicals. The retrofit systems enable a car wash operator to control the feed volume of concentrated chemicals that are fed to a spray arch where the chemicals are mixed with water before being sprayed on a vehicle. The system provided enables the operators of existing car washes to convert from conventional chemicals to highly concentrated chemicals without purchasing an excessive amount of new equipment or carrying out extensive modifications of existing equipment. A novel feature of the present invention includes the use of a concentrate feed control block for controlling the volume of highly concentrated chemicals delivered to the spray arch of the car wash were the chemical is diluted with water before being applied to a vehicle.
Patent TW-386906-B (TW)
Title: Hollow nozzle
Inventor: JANG SHR-CHANG
IPC: B05B1/02
Filed: 1998-10-30
Granted: 2000-04-11
Abstract: This invention is related to a hollow nozzle structure that provides spraying effects of a solid nozzle, which mainly increases a periphery flow-guiding plate area of a water outlet of a conventional hollow nozzle, such that water flow within the hollow nozzle flows through the increased periphery flow-guiding plate area via the effect of centrifugal force, subjecting the water being sprayed from the water outlet to be partly reflected by water-blocking plates and then shattered into smaller particles.  By such, not only a secondary atomizing effect is enhanced as compared with the conventional hollow nozzle, the atomized water drips may be evenly distributed and fell from a center and periphery of the water stream, such that the water stream being sprayed is evenly distributed as that of a solid nozzle, so as to provide spraying effects of a solid nozzle.
Patent TW-513586-B (TW)
Title: Wide view angle LCD operable in IPS mode
Inventor: MIYAHARA TAE
IPC: G02F1/1368
Filed: 1998-11-13
Granted: 2002-12-11
Abstract: The present invention discloses a liquid crystal display device which is arranged by: (A) the first substrate including a plurality of scanning lines and a plurality of signal lines arranged in a matrix form; a common signal line extended in parallel to one of the scanning lines and the signal lines, for applying a reference potential thereto; a pixel electrode; and a thin-film transistor having a source electrode connected to the pixel electrode, a drain electrode connected to the signal line, and a gate electrode connected to the scanning line, the thin-film transistor being formed in an intersection portion between the scanning line and the signal line; (B) the second substrate including a black matrix layer and positioned opposite to the first substrate with sandwiching a liquid crystal layer between the first substrate and the second substrate; and (C) an insulating layer sandwiched between the pixel electrode of the first substrate and the scanning line. While a voltage is applied between the common signal line and the pixel electrode to thereby produce an electric field, a direction of a molecular axis of liquid crystal molecules contained in the liquid crystal layer is rotated within a plane located in parallel to the first substrate so as to perform a liquid crystal display; and further said pixel electrode of the first substrate covers a portion of the scanning lines located in a region other than such a region where the thin-film transistor is formed.
Patent TW-445169-B (TW)
Title: Method and apparatus for global warming prevention
Inventor: TAGAWA KATSUSHI
IPC: B01D53/56
Filed: 1998-11-18
Granted: 2001-07-11
Abstract: A low-cost and practically useful method for preventing global warming by decomposing N2O wherein N2O contained in an N2O-containing gas to be treated can be decomposed at a relatively low temperature; and an apparatus therefor. That is, a method for preventing global warming comprising, in a process of thermally or catalytically decomposing N2O in an N2O-containing gas to be treated, dividing the N2O-containing gas stream to be treated in portions, preheating a portion thereof so as to exothermally decompose N2O in said gas stream to form a hot gas stream, and supplying the remainder of the divided gas stream to be treated into said hot has stream to thereby continuously decompose N2O, so that global warming is prevented; and an apparatus therefor.
Patent TW-414910-B (TW)
Title: Cathode ray tube
Inventor: LEE BONG-WOO
IPC: H01J29/86
Filed: 1999-02-19
Granted: 2000-12-11
Abstract: A cathode ray tube includes a rectangular panel on which a phosphor screen is formed, a neck in which an electron gun assembly for emitting three electron beams is disposed, and a funnel formed contiguous to both the neck and the panel, and having a deflection yoke mounting portion on which a deflection yoke is mounted. The cross section of the deflection yoke mounting portion fulfills the following condition at the panel side end of the deflection yoke mounting portion. 1.0 <= rh/rv <= 1.3 where rh is a diameter of the funnel directed to a direction of a long axis of the panel, and rv is a diameter of the funnel directed to a direction of a short axis of the panel.
Patent TW-413925-B (TW)
Title: Semiconductor device and its manufacturing method
Inventor: KUSHIDA KEIKO
IPC: H01L21/02
Filed: 1999-05-04
Granted: 2000-12-01
Abstract: The present invention relates to a semiconductor device and its manufacturing method and, more particularly, to split-electrode conversion-type nonvolatile storage device or DRAM capacitor in LSI using high dielectric film specifically. The present invention is characterized in that self-alignment is made between a diffusion barrier layer, extending between the surface of a bottom electrode, and an interconnection connecting the bottom electrode to one of the diffusion layers of a switching transistor. As a result, no side trench is produced since a hole pattern is formed by using a dummy film, and even if a contact plug of a memory section is misaligned with the diffusion barrier layer. The contact plug does not contact a high dielectric film directly. Hence, a highly reliable device can be obtained.
Patent TW-490460-B (TW)
Title: New processes for producing β-alanine derivative
Inventor: OHKUBO MITSURU
IPC: C07D211/60
Filed: 1999-10-04
Granted: 2002-06-11
Abstract: The present invention relates to processes for the preparation of β-alanine derivative shown by following formula (I), wherein R1 is amino protective group, and R2 is acyl group, or a salt thereof, which comprises, subjecting a compound of the formula (II), wherein R1 is the same as defined above, and R3 is protected carboxy, or a salt, to elimination reaction of carboxy protective group, and then to acylation reaction of amino group.
Patent TW-440483-B (TW)
Title: Structure and manufacture for nozzle of plasma transferred arc welding gun
Inventor: WU LUNG-DIAN
IPC: B23K10/00
Filed: 2000-01-26
Granted: 2001-06-16
Abstract: This invention is related to a structure for nozzle of a plasma transferred arc welding gun. The nozzle structure includes a first element for transmitting plasma gas, and a second element that is co-axially sealed with the first element. The second element is substantially of a bowl shape so as to define a passageway between an inner wall of the second element and an outer wall of the first element and neighboring an end face of the second element, through which passageway cooling liquid for cooling the nozzle flows. The cooling liquid passageway is defined by tightly joining the independent first and the second elements that are first manufactured independently, such that the cooling liquid can approach the end face as much as possible, thereby overcoming the defect of difficulty in manufacturing conventional, integrally made nozzle structure, which defect causes the cooling liquid cannot approach the end face as much as possible. This invention reduces the distance from the bottom of the cooling liquid passageway to the nozzle end face to a range from 3 to 5 mm, thereby enhancing the cooling effect of the circulating cooling liquid to the nozzle, effectively improving the operative conditions of the plasma transferred arc welding gun that is operated under a high current or high pre-heating temperature of the welding operation, and eliminating the possibility of sticking welding powder to the nozzle end face. This invention discloses the structure and manufacture for such a nozzle of plasma transferred arc welding gun, as well as a plasma transferred arc welding gun including such a nozzle structure.
Patent TW-477853-B (TW)
Title: Toilet device
Inventor: TSAI CHIN-CHIN
IPC: G08B1/08
Filed: 2000-01-27
Granted: 2002-03-01
Abstract: A toilet device of sensor component will detect user and send signal to control the start and stop of exhaust, refresher and music player.
Patent TW-434607-B (TW)
Title: Key switch device, keyboard and electronic apparatus with key switch device
Inventor: KAKO MITSUMASA
IPC: H01H13/70
Filed: 2000-02-10
Granted: 2001-05-16
Abstract: In a key switch device 3, a guide member 10 constructed of a first and a second links 14 and 15, which guides a vertical movement of a key top 9, is movably mounted on a support plate 2 with a mounting member 6 provided with a rotatably supporting portion 7 which rotatably supports a rotatable shaft 18 formed at a lower end of the first link 14 and a slidably supporting portion 8 which slidably supports a slidable shaft 20 formed at a lower end of the second link 15. The mounting member 6 is fixed on the support plate 2 with a first, second, and third adhesive layers 24, 25, and 26.
Patent TW-440904-B (TW)
Title: Method and apparatus for processing semiconductive wafers
Inventor: VENKATARANAN SHANKAR
IPC: C23C16/44
Filed: 2000-02-17
Granted: 2001-06-16
Abstract: There are provided a method and apparatus for forming by chemical vapor deposition on large diameter (e.g., 300 mm) semiconductive wafers thin insulating layers of silicon oxide (SiO2) having high uniformity from rim to rim across any diameter through the centers of the wafers. Such high degree of uniformity of the layers is obtained by directing separately a first reactive gas stream and a second reactive gas stream into close proximity to an exposed surface of a wafer to a be coated by the gasses with an insulating layer, the gas streams when mixed together reacting with each other to deposit an insulating layer on a wafer; forming a whirlpool-like swirling mixture of the first and second gas streams to thoroughly mix together the gasses thereof; forming a highly uniform mixture of the reactive gasses; and promptly flowing the mixture of reactive gasses over and upon the surface of the wafer. The apparatus also provides dual wafer processing chamber cavities.
Patent TW-434614-B (TW)
Title: Receptacle structure of weldless multi-base type switch
Inventor: HUANG CHIUNG-YING
IPC: H01H19/00
Filed: 2000-03-09
Granted: 2001-05-16
Abstract: This invention is about the receptacle structure of weldless multi-base type switch. The invention provides a novel structure on the multi-base type switch structure to directly extend the conducting contact flake required for each set of receptacle from its conducting flake, such that it is not required to perform any welding operation between each switch and each receptacle. At least more than two sets of accepting slots are installed on the switch base, in which the switch unit is individually set inside each accepting slot so as to form a multi-base type switch structure. Each switch unit is provided with a firing-wire conducting flake and ground-wire conducting flake. The clipping flakes are directly extended out from the firing-wire conducting flake and the ground-wire conducting-flake of each switch unit so as to directly form the firing-wire contact point and the ground-wire contact point of the receptacle.
Patent TW-487984-B (TW)
Title: Method of cleaning porous body and process for producing porous body, non-porous film or bonded substrate
Inventor: YAMAGATA KENJI
IPC: B08B3/08
Filed: 2000-03-20
Granted: 2002-05-21
Abstract: In order to clean a porous body in a short time without causing any change in its structure, in a cleaning method of cleaning a porous body formed by anodization, the porous body is cleaned after the anodization is completed, with a cleaning solution containing at least one of an alcohol and acetic acid.
Patent TW-452863-B (TW)
Title: Methods for reducing a dielectric constant of a dielectric film and for forming a low dielectric constant porous film
Inventor: LEE HONG-JI
IPC: H01L21/205
Filed: 2000-04-07
Granted: 2001-09-01
Abstract: A non-solvent method for reducing a dielectric constant of a dielectric film by forming a porous layer on the dielectric film. The dielectric film which can be formed on a substrate by spin-coating or CVD is placed in an atmosphere of a high pressure insert gas or supercritical fluid of the insert gas, and the pressure of the atmosphere is rapidly released to form a nanoporous layer on the dielectric film, whereby the dielectric constant thereof is reduced.
Patent TW-483230-B (TW)
Title: Automatic voltage boosting regulation method of inductive motor and the device thereof
Inventor: WANG CHUN-CHIEH
Filed: 2000-04-24
Granted: 2002-04-11
Abstract: The present invention provides an automatic voltage boosting regulation method of inductive motor, especially an automatic compensation mechanism of magnetic field without estimating the magnetic flux, which is constructed by using the stator current and the slip frequency of the inductive motor. The stator voltage of the inductive motor is inputted by the automatic regulated compensation mechanism of magnetic field, so as to accomplish the goal of stabilizing the magnetic field.
Patent TW-509866-B (TW)
Title: Pointing apparatus capable of increasing sensitivity
Inventor: CHEN WEI-TING
IPC: H01C10/12
Filed: 2000-05-31
Granted: 2002-11-11
Abstract: A kind of pointing apparatus contains a substrate, a force imposed pillar that is disposed vertically on the substrate, and four strain gauges for sensing pressure and generating the corresponding sensing signals. These four strain gauges are disposed between the force imposed pillar and the substrate. Each strain gauge contains the first pressure resistor, the first electrode, and the second electrode. The first pressure resistor is disposed on the upper plane of the substrate, in which a deformation is generated according the subjected pressure so as to change its own resistance. The first and the second electrodes contact respectively with the first pressure resistor such that the first and the second electrodes form a conducting loop through the first pressure resistor to pass a current. The pressure-imposed direction is the direction perpendicular to the plane where the pressure gauge is located, and there is a predetermined distance between the first and the second electrodes in the pressure-imposed direction. When pressing the force-imposed pillar, a pressure is generated by the force-imposed pillar and is applied to the first pressure along the pressured-imposed direction such that the first pressure resistor generates a deformation by following the pressure-imposed direction to make the pressure gauge generate the corresponding sensing signals.
Patent TW-469312-B (TW)
Title: Microfiber substrate of improved carding ability and its manufacturing method
Inventor: WANG CHING-TANG
IPC: D04H1/42
Filed: 2000-06-14
Granted: 2001-12-21
Abstract: Disclosed is to provide generally to a microfiber substrate of improved carding ability and its manufacturing method, and more particularly to a micro-fiber spun by conjugated melting of crystallization difference of high crystallization polymer and low crystallization polyester, drawn to form an unsplit microfiber staple having a layer of thin film in its surrounding, the said microfiber staple which is still kept in unsplitting state during opening, carding and lapping treatment, will be split just at the layer of thin layer of its surrounding of the said microfiber staple by spunlace to completely split form the said microfiber, knitted to form water-jet punch web, then subject to hot water to shrink to densification. The microfiber nonwoven web excellent in the wiping effect, cleaning effect and microfiber artificial leather excellent in the hand feeling and fluff compaction without environment pollution is enabled to offer the artificial leather more cheaply and easily finished.
Patent TW-482889-B (TW)
Title: Squib and method of manufacture thereof
Inventor: AMANO JUNYA
IPC: B60R21/26
Filed: 2000-07-03
Granted: 2002-04-11
Abstract: The invention provides a squib used with a gas source to operate a vehicular safety device such as a seat belt pretensioner and an air bag. The squib includes a cup (2), ignition agent (3) loaded in the cup (2), a plug (4) for stopping an opening of the cup (2), two electrode pins (5, 6) extending through the plug (4), and a bridge wire (7) connected between the two electrode pins (5, 6) in the cup (2) and adapted to ignite when electrically energized. The two electrode pins (5, 6) extend through the plug (4) and form projections (23) on the cup side of the plug (4). The bridge wire (7) is connected between the projections (23) of the electrode pins (5,6). The bridge wire (7) and the projections (23) are buried in the ignition agent (3), and the bridge wire (7) and the ignition agent (3) are sealed in the cup (2) in such a manner that they keep a predetermined contact pressure acting between them.
Patent TW-452646-B (TW)
Title: Use of multi-layer thin films as stress sensors
Inventor: GANAPATHI SRINIVASAN K
IPC: G01L1/12
Filed: 2000-10-02
Granted: 2001-09-01
Abstract: The present invention provides a pressure sensing device that includes at least one GMR sensor, and preferably an array of GMR sensors, with each GMR sensor having a conducting spacer layer interposed between two ferromagnetic layers. In an unbiased state, the magnetization vector of each of the ferromagnetic layers is preferably parallel to each other. Upon application of a current, however, the magnetization vector of each ferromagnetic layer is changed, preferably to an antiparallel position, in which state the sensor is used to then sense stress applied thereto. Upon application of stress, the magnetization vectors of both free magnetic layers will rotate, thus causing a corresponding and proportionally related change in the resistance of the sensor. This change in resistance can be sensed and used to calculate the stress applied thereto.
Patent TW-496068-B (TW)
Title: Assigning telecommunications services to matchable classes
Inventor: MASHINSKY ALEXANDER
IPC: H04M15/00
Filed: 2000-10-24
Granted: 2002-07-21
Abstract: A telecommunications services exchange that assigns telecommunications services to a relatively small number of tagged classes based on the values of certain parameters characterizing these services is disclosed. Carriers and other traders participating in the exchange may use the class tag to refer to each service they seek to purchase or sell. The relatively small number of classes increases the probability of matching offered and required services. Class definitions may be established on the basis of typical parameter values for a particular type of service, and may be modified over time as those values change. The exchange operator may monitor the parameter variation of each offered service, and swap that service for a different service when monitored variation exceeds that dictated by class boundaries. The system may employ a hysteresis band of suitable dimensions to ensure that the assignment of offered services to classes is as stable as desired while remaining sensitive to meaningful variations is parameter values.