baber/WOPTO huggingface dataset:
Patent TW-342382-B (TW)
Title: A recycling process of spent copper etchant for electronic industry
Inventor: CHERN GWO-JIN
IPC: C02F1/66
Filed: 1995-11-01
Granted: 1998-10-11
Abstract: A recycling process of spent copper etchant for electronic industry, which comprises: (a) neutralizing the spent copper etchant forming a weak acid to weak alkali (pH being 3.5~8), and forming a precipitate; (b) after the neutralization and precipitation of step (a), separating the mixture into a solid portion containing a high content of copper and a liquid portion containing a low content of copper; (c) recycling the solid portion containing a high content of copper and washing it with water to form a main ingredient of an insecticide with economic value for sale, and producing a solution containing a small amount of copper ; (d) recycling the liquid portion containing a low content of copper of step (b), and incorporating it with the water-washed solution containing a small amount of copper of step (c), and extracting the mixture with an extracting agent of R-H organic liquid resin (containing amines, oximes and derives thereof, or diketones, cyclic carboxylic acids, phosphoric acid esters) to obtain an oil phase product containing copper and a water phase product containing a minute amount of copper; (e) analyzing the NH4Cl content of the water phase product containing a minute amount of copper of step (d), and based on the analysis result, taking a fixed volume of the water phase product and adding it with an appropriate amount of additives including ammonium chloride, ammonium water, etc. and mixing the mixture to prepare a copper etchant to be reused by the electronic industry; then, concentrating the remaining water phase product containing a minute amount of copper by evaporation into an ammonium chloride crystal to be recycled by a centrifuge; furthermore, during the recycling process of evaporation concentration for producing the ammonium chloride (NH4Cl) crystal, when the content of Cu+2 in the mother liquid exceeds 2000 ppm, introducing it to the liquid portion of step (b) and the solution containing a small amount of copper of step (c) to be mixed and used as the solution for extraction in step (d); (f) adding an appropriate amount of hydrochloric acid into the copper-containing oil phase product of step (d) for reverse extraction, and obtaining a water phase copper chloride solution and an oil phase product containing a small amount of copper in which the water phase copper chloride solution can be recycled to step (a) for neutralization, and the oil phase product containing a small amount of copper can be re-introduced to step (d) for extraction.
Patent TW-420720-B (TW)
Title: Steel for plastic molding die
Inventor: IKENAGA YUTAKA
IPC: C22C38/02
Filed: 1996-03-22
Granted: 2001-02-01
Abstract: The object of this disclosed invention is to provide the steel for plastic molding die with excellent cutting property of long life for cutting tool, high efficiency for cutting working and less deformation during cutting working, and excellent characteristics of polishing, knurling working (etched) and welding repair. This steel for plastic molding die of this disclosed invention has a composition containing, by weight, 0.05 to 0.55% C, 0.50 to 2.5% Si, 0.10 to 2.50% Mn, 0 to 3.0% Cr, 0 to 2.0% Ni, 0 to 1.5% Mo, 0 to 0.50% V, <=0.035% P, <=0.080% S, <=0.02% Al, 0 to 0.1% B, 0 to 0.05% Bi, 0 to 0.1% Be, 0 to 0.05% Pb, 0 to 0.05% Te, 0 to 0.1% Nd, 0.001 to 0.008% O (oxygen), and the balance Fe with inevitable impurities.
Patent TW-409146-B (TW)
Title: Bleach composition for hard surfaces
Inventor: YAMADA HIROYUKI
IPC: C11D3/39
Filed: 1996-04-05
Granted: 2000-10-21
Abstract: A bleach composition for hard surfaces which exhibits high cleaning power against all of the dirts that are deposited on kitchen fitments and utensils and occurs in the bathroom, drain pipes, a bath heater, a washing machine tub and so on without reference to the kind or extent and is reduced in the damages to object surfaces and which comprises (a) 0.1 to 30% by weight of a crystalline alkali metal silicate having an ion-exchange capacity of at least 100 mg CaCO3/g or a hydrate thereof, (b) 0.1 to 30% by weight of a bleaching activator represented by the general formula (I) and (c) 30 to 98% by weight of a discharger of hydrogen peroxide: (wherein L represents a leaving group and R represents a linear alkyl group having 6 to 13 carbon atoms).
Patent TW-434034-B (TW)
Title: Linear pump
Inventor: GOLDOWSKY MICHAEL P
IPC: A61M60/538
Filed: 1996-09-02
Granted: 2001-05-16
Abstract: A linear pump includes a housing having a bore and axially spaced apart inlet and outlet. A first check valve is joined to the housing for controlling flow of fluid through the bore. A piston is disposed coaxially in the housing bore for axial translation therein and includes a piston bore and axially spaced apart inlet and outlet. A second check valve is joined to the piston for controlling fluid flow through the piston bore. A linear motor includes a plurality of axially adjoining drive coils disposed in the housing, and a pair of axially spaced apart magnet rings disposed in the piston and spaced radially inwardly of the drive coils for magnetically cooperating therewith to axially oscillate the piston in the housing for cyclically pumping the fluid in turn through the housing and piston inlets and outlets in unidirectional flow through the housing and piston bores.
Patent TW-362264-B (TW)
Title: Semiconductor device
Inventor: TOMITA YOSHIHIRO
IPC: H01L21/60
Filed: 1996-09-03
Granted: 1999-06-21
Abstract: A semiconductor device which is intended for fatigue life enhancement of electrically connecting means formed between a semiconductor chip and a mounting substrate is disclosed. A plurality of protruding electrode portions each including a bump electrode and a land electrode are formed on the lower surface of an LSI chip. The bump electrodes are of substantially spherical configurations having a first thickness. A plurality of connecting terminals of substantially spherical configuration having a second thickness are directly connected to corresponding ones of the land electrodes by melting through the application of heat. A plurality of connecting patterns are formed on the upper surface of a wiring board which is greater in area than the LSI chip in plan configuration, and a plurality of external electrode portions each including a connecting pattern and an external electrode are formed on the lower surface of the wiring board. The external electrodes are of substantially spherical configuration having a third thickness. The connecting patterns are directly connected to corresponding ones of the connecting terminals, respectively, by melting through the application of heat.
Patent TW-313678-B (TW)
Title: Method of forming polysilicon salicide metal gate
Inventor: WU SHYE-LIN
IPC: H01L21/265
Filed: 1996-09-04
Granted: 1997-08-21
Abstract: A method of forming salicide gate comprises of the following steps:(1) forming one gate oxide on one substrate; (2) forming at least one polysilicon on the oxide layer; (3) implanting ion on the polysilicon; (4) forming one salicide on the polysilicon; (5) implanting ion to the salicide layer and the polysilicon layer;(6) patterning and etching the salicide, the polysilicon and the oxide;(7) patterning one gate electrode patterned by one photoresist; (8) forming source/drain region, and the source/drain region uses the gate electrode as mask.
Patent TW-404096-B (TW)
Title: Infrared interface for data communications
Inventor: WATTS LAVAUGHN F
IPC: H04W88/02
Filed: 1996-09-13
Granted: 2000-09-01
Abstract: An infrared interface (172) is added to a cellular phone (166) and an infrared interface (182) is added to a portable computer (164) to facilitate infrared (IR) transmission (162) between the cellular phone (166) and the portable computer (164). The infrared interface of the present invention can be integrated into the electrical design of new cellular telephones, or it can be added as an intelligent module to existing cellular telephones (204) having proprietary connectors (206). Similarly, the infrared interface of the present invention can also be integrated into the electrical design of new portable computers, or it can be added to a modem (218) which is then cable connected (222) to an existing portable computer (60). The present invention facilitates data communication between a portable computer (164) and a cellular phone (166), data communication between portable computer (164), cellular phone (166) and a cellular telephone system, and data communication between a portable computer and a cellular phone simultaneous with voice communication between the cellular phone and the cellular telephone system.
Patent TW-383489-B (TW)
Title: Semiconductor memory device and method for fabricating the same
Inventor: ABE TARO
IPC: G11C17/12
Filed: 1996-09-18
Granted: 2000-03-01
Abstract: A semiconductor memory device is provided which includes: a memory cell portion including at least one gate electrode formed on a semiconductor substrate and a plurality of source/drain regions formed in the semiconductor substrate and extending parallel to each other and perpendicular to the gate electrode, the gate electrode and the plurality of source/drain regions constituting a plurality of first conductivity type channel transistors; and a peripheral circuitry portion including a first conductivity type channel transistor having a gate electrode formed on the semiconductor substrate and source/drain regions; wherein channels of the first conductivity type channel transistors in the memory cell portion each have a higher impurity concentration than a channel of the first conductivity type channel transistor in the peripheral circuitry portion.
Patent TW-332912-B (TW)
Title: The producing method for capacitor of storage node
Inventor: TZENG HORNG-HUEI
IPC: H01L21/70
Filed: 1996-12-05
Granted: 1998-06-01
Abstract: A producing method for DRAM IC, it includes following steps: Form word line and transferred gate transistor on Si semiconductor wafer, that transferred gate transistor includes gate oxide, gate and source/drain; Deposit 1st dielectric, and planarization 1st dielectric layer; Use lithography and etching technology to etch 1st dielectric, to form node contact on source area; Deposit 1st polysilicon; Deposit 2nd dielectric; Use lithography technology to form PR pattern on node contact, then use etching technology to etch 2nd dielectric and portion of 1st polysilicon, to form trench on 1st polysilicon; Oxidation 1st polysilicon, to form poly-oxide on side and bottom of trench, and form clearance inside the trench; Proceed vertical single etching back for polysilicon oxide, and stop on the surface of 1st polysilicon inside the trench, to expose 1st polysilicon located on bottom of trench, to form poly-oxide spacer at side of trench; Remove 2nd dielectric layer; Deposit 2nd polysilicon to fill clearance; Polish the 2nd polysilicon on top surface of 1st dielectric, to form 2nd polysilicon plug inside the clearance; Use lithography technology to form photoresist pattern on top of node contact, then proceed etching for 1st polysilicon. Remove polysilicon oxide spacer, the residual 1st polysilicon and 2nd polysilicon plug are composed storage node of stack capacitor. Deposit capacitor dielectric on storage node surface; Deposit 3rd polysilicon; Use lithography and etching technology to etch thin capacitor dielectric and 3rd polysilicon, to form top electrode of capacitor.
Patent TW-348310-B (TW)
Title: Semiconductor integrated circuit
Inventor: SASAKI YASUSHI
IPC: H01L27/02
Filed: 1997-04-14
Granted: 1998-12-21
Abstract: A semiconductor integrated circuit comprising at least one pass transistor, and at least one logic circuit of an output gain circuit; which is characterized in that: the pass transistor circuit in the logic circuit comprises: a first input node, a second input node, a third input node, and the output node of a pass transistor; and a first electric field effect type transistor of the first type or the second type: which is connected between the first input node and the pass transistor output node by a source/drain channel connection; and a second electric field effect type transistor of the first type or the second type: which is connected between the second input node and the pass transistor output node by a source/drain channel connection; the output gain circuit of the logic circuit comprises: an input node and an output node; and a first type electric field effect type transistor: which is connected between the output node and a first electric potential by a source/drain, and its gate corresponds to the input node of the output gain circuit.
Patent TW-356629-B (TW)
Title: Telephone handset, cordless telephone or mobile telephone
Inventor: ANDERSEN MORTEN KJELDSEN
IPC: H04R1/22
Filed: 1997-05-06
Granted: 1999-04-21
Abstract: A telephone handset, cordless telephone or mobile telephone comprising a frequency-adjusting transducer (2) preferably provided as a circular capsule, which along a ring-shaped front side by means of a ring-shaped gasket is connected to an inner wall of an earcap or an earpiece (10), which in front of the front side of the transducer diaphragm has a number of apertures (14), and where a number of acoustic connections (16) to an interior cavity (60) and occuring leakages of the handset or the telephone are provided in said earcap or earpiece, that said connection (16) are positioned outside the ring-shaped gasket (12) and preferably outside the circumference of the transducer but inside a diameter determined by the ear represented by a standardized measuring ear, that is inside a diameter of preferably 25mm.
Patent TW-360574-B (TW)
Title: Table saw
Inventor: PUZIO DANIEL
IPC: B23Q11/00
Filed: 1997-06-04
Granted: 1999-06-11
Abstract: A table saw or other cutting machine includes carrying members on an underside of the work table generally adjacent the flanged table edge in order to provide an increased gripping surface area to be grasped by he operator when lifting and transporting the cutting machine. The machine is preferably equipped with invertible extension support assemblies for supporting a workpiece extending horizontally beyond the work table. Such support assemblies include support members slidably extendable horizontally on rods toward and away from the work table. A dust deflection skirt extends from a lower surface of the work table into the generally hollow dust-receiving cavity portion of a dust shroud located within the saw's enclosed base. This skirts deflects dust or chips into the interior of the hollow dust-receiving cavity. Anti-kickback spacers are preferably sealed-end blind rivets mounted on the anti-kickback pawls at intermediate locations thereon. Such spacers slidably maintain the anti-kickback pawls in a generally parallel relationship with the kerf splitter plate. Also hardened portions of the throat plate keep it from being damaged by serrated edges of the anti-kickback pawls and to prevent binding when the blade is lowered.
Patent TW-384354-B (TW)
Title: Starting control device for vehicle
Inventor: MOTODATE SHIYOUJI
IPC: F02N/
Filed: 1997-10-21
Granted: 2000-03-11
Abstract: The present invention provides a starting control device of commercial vehicles that when the vehicle stops, the internal combustion engine is also stopped to save fuel consumption and can simply and smoothly start travelling again. The solution is provided with a start control device for vehicle comprising: starter motor, configured as coaxial with crank shaft of the internal combustion engine; power supply stopping device, used to stop the power supply of ignition motor from the battery when the crankshaft exceeds the predetermined rotation speed; power supply device, used to supply the power to said ignition motor when the throttle valve is not fully closed; and ignition stopping means, used to stop the ignition of internal combustion engine when the vehicle speed is 0 and the throttle valve is fully closed.
Patent TW-373217-B (TW)
Title: Color cathode ray tube
Inventor: SUGAWARA SHIGERU
IPC: H01J29/88
Filed: 1997-10-24
Granted: 1999-11-01
Abstract: A kind of color cathode ray tube, it comprises around at least temperature 20 DEG C to 40 DEG C range, its T DEG C power resistance value R to be d (Log R(T))/dT ≥ -0.01 power resistance temperature characteristics, and around 25 (DEG C) around below 5x10<SP>13</SP> (Ω) of power resisting film, arranged at neck inner wall in-line electronic gun.
Patent TW-375738-B (TW)
Title: Dynamic redundancy for random access memory assemblies
Inventor: DELL TIMOTHY JAY
IPC: G11C11/401
Filed: 1997-11-14
Granted: 1999-12-01
Abstract: Reduced specification DRAMs are used in memory assemblies in such a way as to maximize the use of good cells in the reduced specification DRAM chips. An external memory array is mapped to replace defective memory locations on a real time basis. The major components are (1) a non-volatile storage device, (2) a logic device, and (3) a volatile storage device. The non-volatile storage device, such as an EPROM, EEPROM, or a flash memory chip, is sued to retain address information for all memory fails on a given assembly. In simpler implementations, the use of specific combinations of RAM failure types can be used in addition to a logic decode chip, with the raw card identifying to the decode chip the failing address information (via solder jumpers). The logic device is an ASIC or programmable logic device which contains the bit steering logic and timing generation logic to redirect defective RAM addresses to an alternate storage device for all read and write operations. The volatile storage device is a RAM array that is sued to replace failing address locations in the original reduced specification memory. This array may be in the form a static random access memory (SRAM or DRAM) array, resident in the logic device described above. The size of the device determines the amount of failing addresses that can be allowed in the reduced specification memory.
Patent TW-393800-B (TW)
Title: Multibeam antenna, primary radiator of an antenna for receiving micro waves from satellites and converter for receiving micro waves from satellites
Inventor: IMAIZUMI HIROAKI
IPC: H01Q5/45
Filed: 1997-11-15
Granted: 2000-06-11
Abstract: When a converter 14 is rotated via a rotation mechanism 17, the arrangement inclination angle of two primary radiators 15a and 15b can be adjusted in the range of 0 to 20 DEG. With respect to an axis which is in parallel with the ground. Also the reception polarization angle due to probes of the primary radiators 15a and 15b can be adjusted in the range of 0 to 20 DEG. While maintaining a preset difference in polarization angle among the satellites. Therefore, the arrangement inclination angle of the primary radiators 15a and 15b for respectively receiving signals from the two satellites, and the reception polarization angle in the primary radiators 15a and 15b can be simultaneously easily adjusted by rotating the converter 14 via the rotation mechanism 17.
Patent TW-473542-B (TW)
Title: Aqueous ammonium fluoride and amine containing compositions for cleaning inorganic residues on semiconductor substrates
Inventor: WOJTCZAK WILLIAM A
IPC: C09K13/00
Filed: 1998-01-08
Granted: 2002-01-21
Abstract: A semiconductor water cleaning formulation for use in post plasma ashing semiconductor fabrication comprising the following components in the percentage by weight ranges shown: ammonium fluoride and/or a derivative thereof 1-21%; an organic amine or mixture of two amines 20-55%; water 23-50%; a metal chelating agent or mixture of chelating agents 0-21%.
Patent TW-509692-B (TW)
Title: 2-amino-7-(1-substituted-2-hydroxyethyl)-3,5-dihydro-pyrrolo[3,2-d]pyrimidin-4-ones
Inventor: DUZER JOHN HENRY VAN
IPC: A61P37/02
Filed: 1998-06-15
Granted: 2002-11-11
Abstract: The invention relates to the 2-amino-7-(1-substituted-2-hydroxyethyl)-3,5-dihydro-pyrrolo[3,2-d] pyrimidln-4-ones of formula I and tautomers thereof, wherein Ar represents biaryl, carbocyclic or heterocyclic aryl; pharmaceutically acceptable prodrug ester derivatives; and pharmaceutically acceptable salts thereof, which are particularly useful as potent purine nucleoside phosphorylase (PNP) inhibitors.
Patent TW-533235-B (TW)
Title: Method for extracting fat-soluble components from microbial cells
Inventor: NAKAJIMA TOSHIAKI
IPC: C11B1/10
Filed: 1998-06-05
Granted: 2003-05-21
Abstract: A method of extracting liposoluble components contained in microbial cells, including the steps of drying microbial cells, descructing and molding the resultant by use of an extruder, particularly a twin screw extruder, and extracting the contained liposoluble component by use of an organic solvent; according to the present method, liposoluble components contained in cells can be extracted and recovered with excellent efficiency, within short time and safety.
Patent TW-460737-B (TW)
Title: Light guide plate, surface light source and LCD display apparatus using the light guide plate, and method for manufacturing said light guide plate
Inventor: SATO MICHIAKI
IPC: G02F1/1335
Filed: 1998-09-11
Granted: 2001-10-21
Abstract: The present invention provides a light guide plate etc. capable of reducing costs for parts and production, also decreasing power consumption of a main light source, and eliminating the needs for the main light source, by reducing the number of lenticular lens sheets or making them unnecessary. A light guide plate 1 is resin-molded for a light guide body 1 by using a metal die, and also an external light intake part 1a is formed on one upper end of the light guide plate 1, and further, a 1st lens part 1e which consists of plural lenticular unit lenses 1f is formed. The lenticular unit lenses are concave or convex prisms, and they are arranged almost parallel to each other in direction of the ridge line and crossing almost at right angles with the longitudinal direction of the external light intake part 1a. Especially, the vertical angles of the triangular prisms are formed 125 to 165 degrees. The external light intake part 1a takes in external light such as the sunshine and indoor light as main light, and the incident light is reflected on the light reflective surfaces which are light-opaque treated so as not to be transmissive, and the most of the incident light is finally made to exit from the 1st lens part 1e as synthesized light having uniform directivity.
Patent TW-376348-B (TW)
Title: Resilient clamping mechanism for inserts
Inventor: BARAZANI GIDEON
IPC: B23B27/04
Filed: 1998-12-02
Granted: 1999-12-11
Abstract: A cutting insert clamping mechanism for use in a cutting tool. The cutting tool has a body portion and a clamping portion. The clamping portion includes a base jaw and a clamping jaw. The clamping jaw has on its lower side a forward clamping surface separated by a recess from a rearward clamping surface. A first narrow bridge section connects the clamping jaw to the body portion of the cutting tool. A second narrow bridge section extends generally towards the rearward clamping surface. As a result of the two narrow bridge sections, the forward and rearward clamping surfaces can resiliently bend independently, and thereby are capable of applying independent clamping forces to the insert.