baber/WOPTO huggingface dataset:
Patent JP-2001144551-A (JP)
Title: Low-cost small-sized broadband linearizer
Inventor: YUEN CINDY H C
IPC: H03F1/32
Filed: 2000-09-28
Abstract: PROBLEM TO BE SOLVED: To disclose a broadband linearizer for a power amplifier. SOLUTION: This broadband linearizer includes a preamplifier, a post-stage amplifier and a broadband linearizer bridge connected between the preamplifier and the post-stage amplifier. The linearizer bridge consists of a power divider that couples power with linear and nonlinear arms and of a power combiner that combines outputs of the linear and nonlinear arms. The linear arm includes a 1st equalizer and a delay line and the nonlinear arm includes a distortion generator and an attenuator. A 2nd equalizer is connected between the power combiner and the post-stage amplifier. A control circuit controls the setting of the preamplifier, the broadband linearizer bridge, and the post-stage amplifier. The control circuit outputs a voltage bias and a constant current signal to control the operation of the broadband linearizer.  The broadband linearizer provides independent and flexible phase control that can be connected to various kinds of power amplifiers such as a traveling wave tube amplifier and a solid- state power amplifier having various gain and phase performances.
Patent JP-2002110320-A (JP)
Title: Heating body, heating device and image forming device
Inventor: KARIBE TAKAAKI
IPC: G03G15/20
Filed: 2000-09-28
Abstract: PROBLEM TO BE SOLVED: To prevent a heating body from getting cracked due to distortion by the difference in the coefficient of thermal expansion even in rapid heating. SOLUTION: A base material 2 with the coefficient of thermal expansion of 35×10-7/ deg.C or less and a resistance heating element 3 directly or indirectly formed on the surface of the base material are provided.
Patent JP-2002107628-A (JP)
Title: Zoom lens
Inventor: OTAKE MOTOYUKI
IPC: G02B15/20
Filed: 2000-09-28
Abstract: PROBLEM TO BE SOLVED: To provide a zoom lens capable of obtaining stable optical quality, which is adapted for the miniaturization by reducing the number of constitutional lenses, although the lens has the variable power ratio of >7. SOLUTION: As for the zoom lens, a 1st lens group G1 having a positive refractive power, a 2nd lens group G2 having a negative refractive power, a 3rd lens group G3 having a positive refractive power and a 4th lens group G4 having a positive refractive power are arranged in this order from an object side, and at varying the positional state of the lenses from a wide angle end state to a telephoto end state, all the lens groups are moved to the object side so that a distance between the 1st lens group G1 and the 2nd lens group G2 may be increased, a distance between the 2nd lens group G2 and the 3rd lens group G3 may be decreased and a distance between the 3rd lens group G3 and the 4th lens group G4 may be decreased, and an aperture stop is arranged near the 3rd lens group G3, and the 4th lens group G4 is constituted of four lens components, that is, a 1st positive lens component L1,  a 1st negative lens component L2, a 2nd positive lens component L3 and a 2nd negative lens component L4 in this order from the object side.
Patent JP-2002110232-A (JP)
Title: Non-aqueous electrolyte and lithium battery using the same
Inventor: INAMASU TOKUO
IPC: H01M10/0567
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte for a lithium battery superior in all of rate (high-efficiency discharge characteristic), a cycle characteristic and an initial characteristic, as well as the lithium battery superior in all of the rate characteristic (high-efficiency discharge characteristic), the cycle characteristic and the initial characteristic. SOLUTION: The non-aqueous electrolyte comprises lithium salt contained in a non-aqueous solvent, as well as the lithium battery comprises, at least, the non-aqueous electrolyte, a positive electrode containing a lithium contained transition metal oxide as a positive electrode active material, and a negative electrode containing a carbonaceous material as a negative electrode material, the non-aqueous electrolyte containing ethylene carbonate, γ-butyrolactone, propylene carbonate and vinylene carbonate, as the non-aqueous solvent.
Patent JP-2002112585-A (JP)
Title: Motor drive and exposure apparatus
Inventor: SHIMAMURA NAOTAKA
IPC: H02P7/00
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To reduce low-frequency noise included in output current, in a high- precision motor drive used for stage driving of an exposure apparatus or the like. SOLUTION: This motor drive consists of an oscillator (31) for oscillating a rectangular wave, an integrating circuit (32) forming a delta wave by integrating the rectangular wave outputted from the oscillator, a comparison circuit (A2) for comparing the delta wave outputted from the integrating circuit with an inputted control signal and producing a PWM(pulse width modulation) signal corresponding to the control signal, a driver circuit (34) for power-amplifying the PWM signal outputted from the comparison circuit and providing the PWM signal for the motor to be driven, and a fluctuation-restraining means (33) for restraining fluctuation components which are lower than the fundamental frequency of the delta wave on a signal path, from the rectangular wave output of the oscillator to the delta wave input of the comparing circuit.  The fluctuation-restraining means reduces the noise superimposed on the PWM signal via the delta wave, by restraining low-frequency fluctuations in the delta wave.
Patent JP-2002108342-A (JP)
Title: Keyboard device of electronic keyboard musical instrument
Inventor: SUZUKI AKIHIRO
IPC: G10B3/12
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a keyboard device for an electronic keyboard musical instrument which is reducible in manufacture cost and assembly precision by decreasing the number of components and the assembly man-hour relating to a hammer rail supporting a hammer. SOLUTION: This keyboard device for the electronic keyboard musical instrument comprises a chassis 2, the hammer rail 21 which is composed of an extrusion forming of aluminum and coupled with the chassis 2, keyboards 3 which are supported rotatably on the chassis 2, hammers 4 which are provided by those keyboards 3 and supported freely rotatably on the hammer rail 21 and rotate as the corresponding keyboards 3 are pressed, and a stopper 14 which is fitted to the hammer rail 21 and restricts the rotation of the hammers 4 as the keyboards are touched.
Patent JP-2001171192-A (JP)
Title: Information read/record apparatus, apparatus and method for reading information
Inventor: KANEKO KIYOSHI
IPC: H04N1/04
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide an information read/record apparatus which can greatly shorten an information read time in comparison with the prior art and can realize by one apparatus two-way recording (printing) as an information record apparatus and two-way reading as an information read apparatus. SOLUTION: The apparatus has a recording head 1 set to an apparatus body 100 for recording information to a recording medium, a scanner unit 16 set to the apparatus body 100 for reading information, a carriage means for supporting and moving the recording head 1 and the scanner unit 6, and a sensor 9 for detecting a move position of the carriage means in forward and rearward directions (two directions).
Patent JP-2002106405-A (JP)
Title: Driving control unit for vehicle installed with engine
Inventor: SAITO TOMOAKI
IPC: B60W10/10
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a method capable of conducting EGR efficiently without malfunction, such as lowering of a fuel consumption rate or occurrences of misfiring. SOLUTION: When accelerating conditions of a vehicle installed with an engine, the control unit CU controls the gear change ratio of a half toroidal type CVT, so that to set the driving conditions of the engine not to enter lowering of the fuel consumption rate due to the residual EGR, or not to enter high load-lowr operating region (region I), further not to enter worse region of anti- EGR resistance (region II) under a lean-burn condition region. According to the method, the EGR can conduct efficiently without inconveniences, such as lowering of the fuel consumption rate or the occurrences of misfiring.
Patent JP-2001148563-A (JP)
Title: Apparatus for manufacturing electronic component having bump
Inventor: ARIKADO KAZUO
IPC: H05K3/34
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing an electronic component having bumps, which can mount solder balls for forming bumps on a plurality of works with superior workability. SOLUTION: On a carrier 10, four substrates 3 are mounted and carried on a line by the carrier 10. On the substrate 3, electrodes 20 on which solder balls are mounted are formed into a matrix form. A head part 52 is divided into four blocks A, B, C, D. In each of the blocks, suction holes for vacuum- chucking the solder balls mounted on the substrate are formed into a matrix form. By moving the head part 52 to four positions a, b, c, d, the solder balls are mounted continuously on the four substrates with the four blocks A, B, C, D.
Patent JP-2002103459-A (JP)
Title: Stereo lithographic device and method for producing stereo lithographic product
Inventor: MIZUTANI HIROAKI
IPC: B29C67/00
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a stereo lithographic device capable of correcting a deviation of a laser emitting position while advancing a stereo lithographic method without interrupting time of a measurement or the like of a stereo lithographic product by automatically detecting a deviation amount of the emitting position and having good accuracy and efficiency. SOLUTION: A method for producing the stereo lithographic product comprises the steps of emitting a laser beam 8 from a laser beam generator 9 toward a measuring point 11 provided on a table 4, photographing the laser emitting position by a CCD camera 31, image processing the photographed image, detecting the emitting position by a position detection controller 32, comparing the detected laser emitting position with the position of the measuring point, calculating the deviation amount of the emitting position from the measuring point, obtaining a correcting value of the emitting position by a position correction controller 33, and instructing a scanner controller 23 so as to correct the emitting position to the position of the measuring point.
Patent JP-2002111754-A (JP)
Title: Receiving demapping unit dealing with a plurality of modulation systems
Inventor: TANDAI TOMOYA
IPC: H04L27/14
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a receiving demapping unit in which demapping can be switched easily and a plurality of modulation systems can be dealt with without reloading new demapping software. SOLUTION: In a receiving demapping unit for regenerating the symbol values of an original data series from digital modulated signals modulated based on one arbitrary modulation system among a plurality of predetermined modulation systems, a digital signal processing section 2 generates symbol values from received digital modulated signals according to demapping software preloaded to a program memory 3 and parameters 5 corresponding to the modulation system of the received digital modulated signals from a parameter input section 4 are inputted, as an argument for the demapping software, to the digital signal processing section 2.
Patent JP-2002108077-A (JP)
Title: Development method
Inventor: KISHI YUMIKO
IPC: G03G15/06
Filed: 2000-10-02
Abstract: PROBLEM TO BE SOLVED: To prevent staining and damage to graininess. SOLUTION: When Vmax is the maximum electrical potential when moving a developer on a developer carrier 40a in the direction of an electrostatic latent image carrier 10, VD is the electrical potential in the non-image part of an electrostatic latent image, ΔVD is the difference between VD and Vmax is, d [m] is the shortest distance between the electrostatic latent image carrier and the developer carrier, Qm [C/kg] is the average a the developer, t1 is time during which force is applied to move the developer on the developer carrier in the direction of the electrostatic latent image carrier by an alternating electric field by a developing bias voltage, t2 is time during which force is applied to the developer in the direction contrary to the electrostatic latent image carrier by the alternating electric field, and t1/(t1+t2) is the duty of a developing bias voltage,  the frequency f [Hzl of the alternating electric field is represented by formula 1, and the volume average particle size D [m] of the developer is 2.0×10-6<=D<=12×10-6.
Patent JP-2002112143-A (JP)
Title: Digital broadcast receiver
Inventor: IDA MITSUHIRO
IPC: H04N5/445
Filed: 2000-10-03
Abstract: PROBLEM TO BE SOLVED: To provide a digital broadcast receiver that make easy to view a display for an electronic program guide. SOLUTION: Figure 2 (a) shows a menu that urges a user to select a channel and depicts many buttons indicating channel numbers, by using longitudinal and lateral cells on the menu. The channel selection menu is displayed before displaying of a program column. Figure 2 (b) indicates a circular display area when a button of ch 101 is selected in the Figure 2 (a), and that a program column of the ch 101 is displayed in the circular display area. Program names are displayed in the sequence of the start time clockwise by one circumference as one hour, and the display part of program information is sectored into sectors having a center angle set in proportion to the program time (televising time). An upper position of the circular display area is provided with a time zone display area, where programs are televised in a zone of an hour (Figure indicates a time zone around 9 AM).
Patent JP-2002074145-A (JP)
Title: Internet monitor advertisement system
Inventor: KURISU TOSHIHIDE
IPC: G06Q30/06
Filed: 2000-08-31
Abstract: PROBLEM TO BE SOLVED: To enable many people and many companies to easily release an advertisement with a short production time, expenses and trouble by using the Internet. SOLUTION: An advertisement client (1) writes a domain, etc., in the application form of a homepage on a network with the homepage produced and edited at a low cost and for a short time by using a personal computer as an advertisement and applies the advertisement (2). After the homepage is received (3), the homepage is immediately distributed (4) to a monitor (5) at a place where many people get together or a place where the homepage can be carried so that the advertisements of many people and many companies can be released.
Patent JP-2002115200-A (JP)
Title: Mold for making hollow pulp molded article
Inventor: ETO KEIJI
IPC: B27N5/00
Filed: 2000-10-06
Abstract: PROBLEM TO BE SOLVED: To provide a mold for making a hollow pulp molded article, which enables the smooth delivery of the molded article by the purge and negative pressure suction of compressed air, easily corresponds to the change in the design of the molded article, and can readily be maintained. SOLUTION: This mold for making the hollow pulp molded article, which comprises a back plate 2 fixed to a platen and a paper-making member 3 attached to the back plate 2 and is one of a pair of molds that are used in the form of one pair of the molds, wherein flow routes 4 through which the back plate 2 and the paper-making member communicate with each other are formed. The paper-making member 3 comprises a main mold body 30 having a main dent-like paper-making portion 30a corresponding to the hollow molded article to be molded and an outer peripheral portion 30b outward extended from the peripheral portion of the paper-making portion 30a, a paper-making net 31 mounted on the main molded body 30 to cover the paper-making portion 30a, and a fixing member 32 for fixing the paper- making net 31 to the main mold body 30.  Grid-like water-draining grooves 5 are disposed at places not communicating with the water-draining grooves 5 of the corresponding other paper-making mold in a state engaged with the other paper-making mold on the surface of the paper-making portion 30a. The one opening ends of the flow routes 4 are disposed at sites corresponding to the bottom of the hollow molded article in the water-draining grooves 5.
Patent JP-2002122236-A (JP)
Title: Shift controller
Inventor: TABATA ATSUSHI
IPC: F16H61/28
Filed: 2000-10-11
Abstract: PROBLEM TO BE SOLVED: To prevent twist torque from remaining and prevent the occurrence of a shock and an abnormal sound when shifting from a P position to the other position. SOLUTION: When a shift lever is operated from an R position to the P position (S20), a second clutch C2 and a fourth brake B4 in an automatic transmission are operated to a release side (S50), and an output shaft of the automatic transmission is locked by a parking lock mechanism after stand-by for a predetermined time (S60). Since power transmission of the automatic transmission is disconnected prior to locking of the output shaft, the output shaft is locked while twist torque does not remain in a power transmission system in the automatic transmission, and a shock does not occur even when shifting from the P position to the other position next.
Patent JP-2002121312-A (JP)
Title: Polyester resin foamed particle and molded article thereof
Inventor: SHINOHARA MITSURU
IPC: C08L101/16
Filed: 2000-10-11
Abstract: PROBLEM TO BE SOLVED: To provide polyester resin foamed particles having good secondary foamabillity, and polyester resin foam particle moldings obtained by molding the foamed particles, has a low density, and is excellent in surface smoothness and a mold-copying property. SOLUTION: The polyester resin foam particles are prepared by using, as the base resin, a polyester resin containing at least 35 mol% aliphatic ester component in the main chain and have an apparent density of 0.015-0.09 g/cm3, an average wt. per particle of 1-4 mg, and an average cell membrane thickness of 1.5-5 μm. The particles are filled into a mold and thermally molded to give a polyester resin foam particle molding having a density of 0.012-0.06 g/cm3.
Patent JP-2002131085-A (JP)
Title: Method for correcting spin frequency noise error in output of rotary displacement converter
Inventor: FRANK J MOIJIO
IPC: G01D5/245
Filed: 2000-10-12
Abstract: PROBLEM TO BE SOLVED: To remove spin frequency noise errors in the output of a rotary displacement converter. SOLUTION: A serial converter output value is accumulated for each rotation of the rotary displacement converters (105, 109). Each output value expresses a time interval between converter pulses. Their output values are used for calculating the sine value of a sine wave and cosine value of a cosine wave having a cycle determined by the converter resolution. An orthogonal phase value and a same value are obtained from the sine wave value and cosine wave value, and their values are used for calculating the size value and phase value of a correction sine wave having same converter cycling. Their size value and phase value are used for calculating a correction value for each converter output value.
Patent JP-2002125059-A (JP)
Title: Interphone system and interphone system transfer method for multiple dwelling house
Inventor: SHINOZAKI SATOSHI
IPC: H04N7/18
Filed: 2000-10-13
Abstract: PROBLEM TO BE SOLVED: To provide a multiple dwelling house interphone system which is capable of transferring the image and voice of a visitor to an optical outer communication terminal device by the user of an existing infrastructure. SOLUTION: An interphone system 20 provided with a common porch slave unit 21 and dwelling house master units 22 is equipped with an outside line adapter 26 which is connected to an outside network and capable of transferring the image signals and voice signals of the common porch slave unit 21, and the dwelling house master units 22 to an outside communication terminal unit and a central control unit 27 which controls the operations of the common porch slave unit 21, the dwelling house master units 22, and the outside line adapter 26. When a visitor makes a call to the dwelling house master unit 22 which is so set as to transfer its call-in to the outside communication terminal unit, the image and voice of the visitor obtained through the common porch slave unit 21 are transferred to the outside communication terminal unit.
Patent JP-2001178155-A (JP)
Title: Linear driver for use as furniture driver
Inventor: FINKEMEYER HORST
IPC: H02N2/02
Filed: 2000-10-16
Abstract: PROBLEM TO BE SOLVED: To obtain a linear driver arranged to be a furniture driver comprising at least one drive motor linked with a driven section movable linearly provided with a controllable brake element in which the casing is not required to be enlarged for a brake unit and the function of the brake unit is operated with no lag. SOLUTION: The furniture driver comprises a regulator in the form of a piezoelectric actuator 10 linked directly or indirectly with brake elements 11, 12 acting on the rotary shaft 13 of a drive motor. The piezoelectric actuator is advantageously connected with the electrical terminals 20, 21 of the drive motor. The linear driver is advantageously arranged to adjust a hurdle or an easy chair.
Patent JP-2002081082-A (JP)
Title: Fitting method for base isolation foundation
Inventor: MORI KUNINORI
IPC: E02D27/34
Filed: 2000-09-07
Abstract: PROBLEM TO BE SOLVED: To provide a method for fitting KMK base isolation foundation to an existing house at low cost. SOLUTION: In this base isolation foundation, a continuous footing is changed to an expanded mat foundation. Two jacks are applied to the lower parts of a pair of flat plates clamped from the both sides of a column to raise a building. A bed and the body are fitted in a space formed thereby.
Patent JP-2002136115-A (JP)
Title: Switching power supply
Inventor: MATSUDA HIDESHI
IPC: H02M3/335
Filed: 2000-10-20
Abstract: PROBLEM TO BE SOLVED: To provide a switching power supply capable of preventing the occurrence of the undershooting phenomenon of an output voltage, when operation is stopped. SOLUTION: This switching power supply is provided in the primary side drive circuit, with a main switch 4 that is controlled with PWM by a control pulse signal in accordance with an output voltage; and in the secondary side output circuit with a rectification-switching MOSFET 6, a reflux-switching MOSFET 7, a diode 15 connected to the gate of the reflux-switching MOSFET 7, and a reflux-gate-driving switching element 16. Also, this switching power supply is provided with a discharging means 17 that discharges the charged charge of a capacitor between the gate and source of the reflux-switching MOSFET 7 with a given time constant, when the operation is stopped.
Patent JP-2002132481-A (JP)
Title: Information providing system and information providing method regarding printer
Inventor: TERAOKA YUJI
IPC: G06F17/30
Filed: 2000-10-20
Abstract: PROBLEM TO BE SOLVED: To quickly and efficiently provide answer information if the provision of information on a predetermined product is requested. SOLUTION: In response to the arrival of a message from a telephone 3, a main control part 12, for inputting the model of the target printer and the contents of the request related thereto by the operator of the telephone 3, controls an answer information processing part 13 and a voice converting part 17 so as predetermined information to be converted into a voice and to be sent it out. If the model of the printer and the contents of the request are recognized, the recognized result is notified to a support information management device 6. If the notice that the answer information corresponding to the recognized result is stored in an answer information database 14 is sent from the support information management device 6, the main control part 12 executes audio response processing, depending on the answer information.