baber/WOPTO huggingface dataset:
Patent JP-2003023799-A (JP)
Title: Method and apparatus for current control of synchronous motor
Inventor: KAKU SOKI
IPC: H02P21/13
Filed: 2001-07-04
Abstract: PROBLEM TO BE SOLVED: To provide a method of controlling a current of synchronous motor which can obtain proper current response characteristic, even under the influence of environmental conditions, such as temperature and also provide an apparatus for controlling the current of the same synchronous motor. SOLUTION: Currents Iu, Iv, and Iw flowing into the synchronous motor are converted, using the actual position θ of rotor of synchronous motor, into a d-axis actual current Idfb and a q-axis actual current Iqfb on the rotating coordinate axis, which rotates in synchronism with a magnetic flux vector of a rotor, a d-axis pseudo-current Idob and a q-axis pseudo-current Iqob are estimated based on the d-axis actual current Idfb, q-axis actual current Iqfb, a d-axis actual voltage command Vdref and a q-axis actual voltage command Vqref, the d-axis actual voltage command Vdref and the q-axis actual voltage command Vqref are generated, based on a d-axis current command Idref, a q-axis current command Iqref, a d-axis pseudo-current Idob and a q-axis pseudo- current Iqob,  and the d-axis actual voltage command Vdref and q-axis actual voltage command Vqref are converted into actual voltage commands Vuref, Vvref and Vwref, using the actual position θ of rotor of synchronous motor.
Patent JP-2003046775-A (JP)
Title: Error propagation suppressing circuit for suppressing propagation of cumulative error by error diffusion method
Inventor: OTAWARA MASAYUKI
IPC: G09G3/20
Filed: 2001-07-05
Abstract: PROBLEM TO BE SOLVED: To provide an error propagation suppressing circuit capable of preventing any cumulative error due to error diffusion from affecting a low gradation display part on a display screen. SOLUTION: This error propagation suppressing circuit suppresses the propagation of any cumulative error by temporarily stopping the functions of an error diffusion processing circuit for executing the pseudo-display of intermediate gradation at a display device by an error diffusion method. The circuit is provided with detecting circuits (5, 7) for detecting that gradation display parts equivalent to a black level are continued and an interrupting circuit (8) for stopping the error diffusion processing of the error diffusion processing circuit, when it is detected that the gradation display parts equivalent to the black level are continued by the detecting circuits.
Patent JP-2003018207-A (JP)
Title: Method for improving outgoing traffic channel transmission delay time in radio communication system and base station transmission device
Inventor: TANAKA ICHIYO
IPC: H04L47/267
Filed: 2001-07-05
Abstract: PROBLEM TO BE SOLVED: To provide a method for improving the outgoing traffic channel transmission delay time in a radio communication system and a base station transmission device. SOLUTION: When receiving an improved predicted outgoing communication speed (DRC) in the middle of outgoing traffic channel data packet transmission, a re-encoding processing part 41 abandons a packet which is one the way of transmission from a base station to a mobile station and re-encodes a transmission packet based on the improved DRC and preferentially retransmits it. In order to inform the mobile station that the packet on the way of transmission is abandoned, an abandonment object packet report part 42 transmits a packet from the base station to another mobile station or a CC packet (control channel) to a slot where the packet as the abandonment object should be transmitted.
Patent JP-2003021142-A (JP)
Title: Drive device using air bearing
Inventor: TSURUTA ATSUSHI
IPC: G01B5/00
Filed: 2001-07-05
Abstract: PROBLEM TO BE SOLVED: To provide a drive device using an air bearing that can increase the precision and stability of driving while reducing cost. SOLUTION: The drive device 110 using an air bearing, which comprises an air bearing for forming a space by an air film between a base part 112 and a motion part 116, has blowout openings 170 cut in the base part 112 to blow air 126 over the motion part 116 and apply levitation force to the motion part 116, a supplying means 172 for supplying the air 126 to the blowout openings 170, a suction opening 176 for suctioning the motion part 116 toward the base part 112 to apply suction force to the motion part 116, a suctioning means 178 for suctioning the motion part 116 toward the base part 112 via the suction opening 176, and adjusting means 174 and 180 for adjusting the levitation force by the air blow from the blowout openings 170 and the suction force by the suction opening 176.
Patent JP-2003013107-A (JP)
Title: Method for manufacturing three-dimensional sintered parts
Inventor: TAKEGUCHI SHUNSUKE
IPC: C04B35/00
Filed: 2001-07-06
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a three-dimensional sintered compact of high quality and high precision. SOLUTION: This method comprises making slica drawings of a product beforehand from the three-dimensional shape of product sintered compact at every predetermined thickness in a predetermined direction then mixing and kneading a metal powder or ceramics powder or a mixture thereof with an average particle diameter of 50 μm or less with a binder and heating and kneading them; heating the produced mixture; then repeating a process for laminating the mixture on the base at an certain thickness according to the slicing drawings of the product, until obtaining a three-dimensional body of the objective product; heating the obtained laminated body or degreasing it through immersing in a solvent; and sintering it to obtain the product. A support may be formed with waxes around the felly in the slicing drawings of the product.  A working process may be added in order to make the thickness of the laminate to be a predetermined value.
Patent JP-2002095931-A (JP)
Title: Spiral membrane element, and method for operating and washing spiral membrane module
Inventor: ANDO MASAAKI
IPC: B01D61/22
Filed: 2001-07-10
Abstract: PROBLEM TO BE SOLVED: To provide a spiral membrane element capable of performing stable filtering operation at a low cost while keeping high permeation flux over a long period of time, and a method for operating and washing a spiral membrane module. SOLUTION: The spiral membrane module is equipped with the spiral membrane element 1 having a separation membrane high in back pressure strength. The flow rate of permeated water at the time of filtering of the spiral membrane element 1 is preferably set to 0.5-2.0 m3/m2/day and the filtering time thereof is set to 10-300 min. The flow rate of washing water at the time of washing is preferably set to 1.0-4.0 m3/m2/day and a washing time is preferably set to 10-300 sec. Within this range, the ratio of the water passing quantity at the time of filtering and that at the time of backwashing is set to 600 or less.
Patent JP-2003020915-A (JP)
Title: Four-cycle engine for outboard motor
Inventor: FUKUDA KATSUHIRO
IPC: F01L1/02
Filed: 2001-07-10
Abstract: PROBLEM TO BE SOLVED: To improve an operating resposiveness of a valve timing variable mechanism, enhance a layout property of an engine, reduce in size, and reduce in cost. SOLUTION: This four-cycle engine for outboard motor is vertically installed in a state such that a crankshaft and a can shaft 32a are provided in a vertical manner. In the four-cycle engine for outboard motor, a cam shaft driving mechanism 51 which transmits rotation of the crankshaft to the can shaft 32a and a oil pump 70 for lubrication are arranged to a lower side of the engine, and the valve timing variable mechanism 85a and a valve timing control mechanism 84 which receives oil supply from the oil pump 70 to control the valve timing variable mechanism 85a are provided. The valve timing control mechanism 84 is arranged near a lower side of an outside wall (for example, a ceiling surface of a head cover 24) of a valve system chamber 35 in which the cam shaft 32a is built.  Further, the valve timing variable mechanism 84 is arranged to a lower end side of the cam shaft 32a and under the cam shaft driving mechanism 51.
Patent JP-2003021405-A (JP)
Title: Piping structure of supply pipe and return pipe of solar collector
Inventor: SHINOZAKI HIROSHI
IPC: F24J2/46
Filed: 2001-07-11
Abstract: PROBLEM TO BE SOLVED: To provide a method for laying supply pipes and return pipes of a solar collector having a reduced possibility of rain-leaking into the indoor side or into a wall without damaging its appearance and without requiring installation work. SOLUTION: In a piping structure, a heat collector inlet 2 and a heat collector outlet 3 of the solar collector 1 are connected with two connection ports 23a and 23b of a hot water storage tank 12 by the supply pipe 4 and the return pipe 5. The return pipe 5 is laid from the heat collector outlet 3 to the inner side of the gable part or the inner side of the eaves via the roof top face 6, while being laid on the gable 7 or the eaves 8 and penetrating the gable 7 or the eaves 8 from the upper side to the lower side to reach the inner side of the gable 7 or the inner side of the eaves 8, then scrawling on the inner side of the gable or the inner side of the eaves and the wall face of a building, and then connected with the connection port 23b of the tank 12.  The supply pipe 4 is laid along the return pipe in the opposite direction from the connection port 23a of the tank 12 and connected with the inlet 2 of the solar connector 1.
Patent JP-2003030852-A (JP)
Title: Information recording carrier, information recording method, information reproducing method, information recorder, and information reproducer
Inventor: IIDA TAMOTSU
IPC: G11B7/24085
Filed: 2001-07-12
Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium and information recording and reproducing device which secure the reliability by recording information without degrading S/N and preventing erroneous detection caused by defects, and an information recording/reproducing method. SOLUTION: Main data is recorded on an information recording carrier by pits or marks arranged in the tracking direction, and the pits or marks include pits or marks which change to a specific shape in the direction orthogonal to the tracking direction, and a plurality of kinds of pits and marks different by length exist as the pits or marks having the specific shape, and different kinds of secondary data are multiply recorded by the kinds of pits or marks.
Patent JP-2003028914-A (JP)
Title: Method of evaluating and testing polarity inverting ability of high-voltage insulated equipment for dc power transmission
Inventor: MAEKAWA YUICHI
IPC: G01R31/12
Filed: 2001-07-12
Abstract: PROBLEM TO BE SOLVED: To provide a method of evaluating and testing polarity inverting ability of high- voltage insulated equipment for DC power transmission, by which the polarity inverting ability of insulated equipment for DC can be evaluated by means of short-time conduction and a voltage, which will not be a load on the equipment and whether or not a harmful defect that may cause breakdown, when the polarity of an actual long-distance bulk power transmission line is inverted, is contained in the equipment can be detected, prior to the shipment of the equipment. SOLUTION: In this method, the polarity inverting ability of the high-voltage insulated equipment for DC power transmission is evaluated through a step of impressing a test DC voltage upon the equipment and another step of impressing AC wave voltages upon the equipment. The impression of the AC wave voltages upon the equipment includes a step of impressing an AC wave voltage, having the same crest value as that of the test DC voltage, a step of impressing an AC wave voltage for the impressing time corresponding to the allowable number of polarity inverting times for the actual line of the equipment, or a step of impressing an AC wave voltage upon the equipment, prior to shipment for an impressing time, during which the actual DC power transmission line of the equipment can withstand the number of polarity inverting times required for system operation, and so on.
Patent JP-2002360332-A (JP)
Title: Strung clip for cellular phone
Inventor: SHIMIZU YOKO
IPC: A45C13/30
Filed: 2001-06-12
Abstract: PROBLEM TO BE SOLVED: To provide a lightweight, inexpensive, and mass producible commodity for facilitating carrying by directly attaching a cellular phone to the neckline of a T-shirt, and the waist of a skirt and slacks, or hanging the cellular phone from a neck. SOLUTION: This plastic clip is stuck to the reverse side of the cellular phone 1, wide rubber is attached for preventing a slip, and a string is inserted according to demand. The stringed clip is reduced in weight, and hangs the cellular phone upside down.
Patent JP-2002084740-A (JP)
Title: Charge pump circuit
Inventor: NANO TAKAO
IPC: H02M3/07
Filed: 2001-07-18
Abstract: PROBLEM TO BE SOLVED: To provide an efficient charge pump circuit of large output current. SOLUTION: Two MOS transistors M1 and M2 for charge transfer in the prior stage are formed of those of N-channel type, and two MOS transistors M3 and M4 for charge transfer in the posterior stage are formed of those of P-channel type. In addition, inverter level shift circuits S1 and S2 and non- inverter level shift circuits S3 and S4 that enable output of intermediate potential are provided. With this constitution, an efficient charge pump circuit of large output current is materialized, and the voltage Vgs between gate and source of the transistors M1 to M4 for charge transfer (when the transistors are in on-state) can be uniformized to 2Vdd.
Patent JP-2002102208-A (JP)
Title: External patient contouring
Inventor: STECKNER MICHAEL
IPC: G06T1/00
Filed: 2001-07-18
Abstract: PROBLEM TO BE SOLVED: To find an application of diagnostic imaging by an open type MRI scanner applied to a tumor treatment, in particular, regarding an imaging field. SOLUTION: An open MRI or other diagnostic imaging system A generates a three-dimensional volume measuring diagnostic image representation stored in an MRI image memory 26. A laser scanner or other surface imaging system B generates a volumetric surface image representation stored in a surface image memory 34. The volume and surface images generally are misaligning and a magnetic resonance image occasionally has predictive distortion. An image correlating system C determines offset, scaling, rotational and a non-linear corrections implemented by an image correction processor 48 for a magnetic resonance image representation.
Patent JP-2002083245-A (JP)
Title: Method and device for executing automated transaction
Inventor: CANNON THOMAS CALVIN JR
IPC: G06Q30/00
Filed: 2001-07-19
Abstract: PROBLEM TO BE SOLVED: To provide a server for operating the execution of automatic transactions, including the security for the secret information and private information of a user and using method of the server. SOLUTION: When making a purchase, rather than a user transmitting private verification information to a seller, the seller makes a contact with a controlled server 100. During the contact from the seller to the controlled server 100, the seller specifies the user, arbitrary non-personal information concerning the user grasped by the seller and the nature of the transaction. When the purchase is proper, the controlled server 100 authorizes the transaction to the seller. Accordingly, there is the user not need what so ever for to transmit the personal management information to the seller. It is sufficient that the seller only know whether the transaction has been authorized, and further exchange of information is not made.
Patent JP-2003034038-A (JP)
Title: Cartridge device and printer with the same
Inventor: SUZUKI TOMOJI
IPC: B41J2/175
Filed: 2001-07-23
Abstract: PROBLEM TO BE SOLVED: To provide a cartridge device which can prevent an ink leakage from an ink needle. SOLUTION: An ink cartridge 60 can be set and separated to the cartridge device 30. The cartridge device 30 is constituted to connect the interior of the ink cartridge 60 with an ink route 45 in a state while the ink cartridge 60 is pierced by the ink supply needle 44, and is provided with a valve mechanism 50 constituted to be able to open the ink route 45 in association with setting/detaching the ink cartridge 60.
Patent JP-2003035907-A (JP)
Title: Sealing device and sealing method for liquid crystal display cell
Inventor: ARAI HIROKAZU
IPC: G02F1/1339
Filed: 2001-07-25
Abstract: PROBLEM TO BE SOLVED: To provide a sealing device and a sealing method for a liquid crystal cell which enable stable treatment by preventing breakage or chipping of a liquid crystal display cell, simultaneous and efficient coating operations at a plurality of parts and can also be adaptive to many kinds of cells. SOLUTION: The sealing device for the liquid crystal cell is provided with a pressurizing tool 1 for laminating a plurality of the liquid crystal display cells 2 while a sheet like elastic body 4 is being interposed between liquid crystal display cells 2 adjacent to each other and each having a liquid crystal filled therein, holding means 9 and 10 holding the pressurizing tool 1, positioning means 11 by which the positioning of the liquid crystal display cells 2 laminated by the pressurizing means 1 is performed and a pressurizing means 19 for pressurizing the plurality of the liquid crystal cells 2 via the sheet like elastic body 4, after the positioning state of the plurality of the liquid crystal display cells 2 performed by the positioning means 11 is released and to provide the sealing method for the liquid crystal cell.
Patent JP-2003034320-A (JP)
Title: Printer
Inventor: SUZUKI HIROYUKI
IPC: B65C9/44
Filed: 2001-07-26
Abstract: PROBLEM TO BE SOLVED: To enable the preparation of a sorting tag without wasting paper. SOLUTION: In preparing the tag by cutting the paper, the part from the head end to a center hole of a full-size tag is separated and removed to prepare the sorting tag shorter than the full-size tag. A printable sorting tag can be prepared without wasting the paper, though the part from the head end to the center hole of the full-size tag is removed, as only one sorting tag is prepared and printing can be done thereon.
Patent JP-2003046172-A (JP)
Title: Laser oscillator
Inventor: OMATSU HIDEFUMI
IPC: H01S3/131
Filed: 2001-07-30
Abstract: PROBLEM TO BE SOLVED: To accurately reproduce irradiation with the output beam of a laser oscillator by improving the stability of a discharge current in a low current command region and supplying stable electric power to a laser resonator. SOLUTION: The laser oscillator is provided with an irradiation commanding section 9 which decides the irradiating timing of laser light outputted from the laser resonator 1, a current value setting section 8 which outputs the current value signal predetermined by means of the section 9, and a switching power source section 4 which supplies electric power to the resonator 1.  The laser oscillator is also provided with a current detecting section 3 which detects the output current of the power source section 4, first and second comparing and controlling sections 6 and 7 which compare the output signal of the current value setting section 8 with that of the current detecting section 3 and have different transient responsivenesses respectively, and a switch 5 which drives the power source section 4 by switching the output signals of the comparing and controlling sections 6 and 7 based on the level of the output signal of the current value setting section 8.
Patent JP-2003045335-A (JP)
Title: Manufacturing method of electron source, image forming device using the same and its manufacturing method
Inventor: GOFUKU IHACHIROU
IPC: H01J9/44
Filed: 2001-07-31
Abstract: PROBLEM TO BE SOLVED: To control element degradation by aging and to reduce brightness unevenness and a change over time while maintaining high brightness. SOLUTION: The image forming device contains a plurality of electron emission elements, and upper wirings 102 and lower wirings 103 set in the long and short side directions are set to select the elements, and has an electron source substrate 1 in an envelope 5 sealing the plurality of electron emission elements. A plurality of long spacers 9 are placed parallel to the upper wirings 102, a plurality of divided spaces are formed dividing the inside of the envelope 5 by the plurality of spacers 9, and at the same time, a plurality of wiring groups are formed by dividing a wire band parallel to the spacer 9 for every separated space, and a driving signal is impressed to a wire in each wire group time sequentially before using, degassing processing referred to as an aging is performed separately in each of the divided spaces.
Patent JP-2002094152-A (JP)
Title: Optical amplification
Inventor: WILLETS DEREK C
IPC: H04B10/291
Filed: 2001-07-31
Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier with redundancy. SOLUTION: This optical amplifier is provided with a first optical amplifying medium forming at least a part of a first optical transmission line, a first pumping means including a first pump radiation source and operable to direct first pump radiation into the first optical amplifying medium, a second optical amplifying medium forming at least a part of a second optical transmission line, and an optical coupling means operable to remove from the first optical transmission line the first pump radiation outputted from the first optical amplifying medium and to direct the removed first pump radiation to the second optical amplifying medium.
Patent JP-2003045810-A (JP)
Title: Plasma processing system
Inventor: TAKATSU KAZUMASA
IPC: B01J19/08
Filed: 2001-07-31
Abstract: PROBLEM TO BE SOLVED: To provide a plasma processing system capable of improving adhesion between slot bodies having a number of slot holes comprising conductors and dielectric arranged on the opposite side of a microwave radiation plane of the slot bodies, improving radiation efficiency and uniformity of microwave, radiating plasma for a long time, and coping with the substrate to be processed of a large area. SOLUTION: The plasma processing system for producing microwave plasma with a slot antenna comprises a slot body arranging a number of slots for radiating microwave on a block conductor, and a dielectric arranged on the surface of the opposite side of the microwave radiation plane of the slot bodies, with the slot bodies and the dielectric integrally constructed by metalize bonding.
Patent JP-2002101069-A (JP)
Title: Method and system for processing orthogonal frequency division multiplex signal
Inventor: BELOTSERKOVSKY MAXIM B
IPC: H04J11/00
Filed: 2001-07-31
Abstract: PROBLEM TO BE SOLVED: To reduce intersymbolic interference(ISI) in an orthogonal frequency division multiplexing(OFDM) receiver, and to reduce phase rotation which is caused during FFT unit outputting. SOLUTION: An OFDM receiver extracts a training symbol from an OFDM signal, of which high-speed Fourie transform (50, 52) is calculated, and processes the extracted training symbol (60, 62), and derives FFT window adjustment factor and an associated equalizer tap initialization value, thereby compensating FFT window drift. This OFDM receiver controls the position of FFT window and an initialization of equalizer taps, by the use of the FFT adjustment coefficient and equalizer tap initialization value. This OFDM receiver filters an OFDM signal, of which the high-speed Fourie transform (56) is calculated, and filters additive channel noise, and can increase the likelihood of the equalizer tap initialization having reliability, in a low SNR environment.