baber/WOPTO huggingface dataset:
Patent JP-H11150389-A (JP)
Title: Noise absorbing device
Inventor: TAKEUCHI YASUICHI
IPC: H05K9/00
Filed: 1997-11-18
Abstract: PROBLEM TO BE SOLVED: To enhance a noise absorbing device in noise absorbing effect keeping split cores in close contact with each other by a method wherein the split cores are stably supported inside a cover in the noise absorbing device where cables are surrounded with a pair of ferrite split cores. SOLUTION: A noise absorbing device is composed of a pair of ferrite split cores 1A and 1B and covers 2A and 2B which cover the cores 1A and 1B respectively, wherein a pressing piece 27 of both-edge supported structure is formed in the covers 2A and 2B respectively through grooves provided in a circumferential direction, and the split cores 1A and 1B are brought into close contact with each other by pressing projections 27a each provided to the pressing pieces 27. Pinching pieces 29a each provided to the opposed edges of the covers 2A and 2B are made to penetrate into long grooves 21b provided in linking pieces 21 which link the covers 2A and 2B together to be pinched, so that the covers 2A and 2B, are firmly engaged by both the edges to enable the split cores 1A and 1B to come into closer contact with each other.  By this setup, the noise absorbing device is enhanced in noise absorbing effect by the split cores 1A and 1B.
Patent JP-H02163386-A (JP)
Title: Aluminum or aluminum alloy material having high pitting corrosion resistance
Inventor: ITAGAKI TAKESHI
IPC: C23C22/34
Filed: 1988-12-17
Abstract: PURPOSE:To produce an Al material having high pitting corrosion resistance by immersing an Al material in a soln. having a specified fluorine ion content at a specified temp. to form a coating film of aluminum oxide hydrate contg. fluorine. CONSTITUTION:An Al or Al alloy material is immersed in an aq. soln. contg. fluorine ions at >=10ppm concn. at about >=60 deg.C to form a coating film of aluminum oxide hydrate contg. fluorine in the surface. An Al or Al alloy material having improved pitting corrosion resistance is obtd.
Patent JP-2001130118-A (JP)
Title: Thermal transfer printer
Inventor: SUZUKI MASARU
IPC: B41J35/08
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a thermal transfer printer in which an ink ribbon is prevented from creasing. SOLUTION: The thermal printer comprises a section 4 for feeding an ink ribbon 17 toward a print section 3, and a section 5 for winding the ink ribbon 17 after transfer wherein a tension balance mechanism 11 (19) for imparting tension to the ink ribbon 17 and adjusting balance thereof is provided at least on the upstream side or downstream side of the print section in the ink ribbon carrying direction.
Patent JP-H05147205-A (JP)
Title: Ink jet recording device
Inventor: MORIYA KOJI
IPC: B41J29/17
Filed: 1991-12-02
Abstract: PURPOSE:To record data clearly immediately after the replacement of a record ing head cartridge. CONSTITUTION:If the presence of an IJ cartridge 4 loaded is detected by a presence detection circuit 52, based on a difference in signal between a heater is driven with the IJ cartridge 4 loaded and when the heater is driven with the IJ cartridge unloaded, a cleaning mechanism 51 is driven using a printing control device 5 to clean the head part of the IJ cartridge 4.
Patent JP-H04191484-A (JP)
Title: Gear pump
Inventor: YAMASHITA MASASHI
IPC: F04C13/00
Filed: 1990-11-26
Abstract: PURPOSE:To eliminate seizure in a pump sliding portion for a long-term service by constituting at least one of a gear, gear shaft, abutment plates, and intermediate plate of a gear pump for wet spinning or the like of ceramics having specific surface roughness. CONSTITUTION:Side plates 1, 2 are tightened by knock pins 4 with an intermediate plate 3 held therebetween. Inside the intermediate plate 3, a driving gear 5 and a driven gear 6 are contained in an engaged manner. A spinning solution is supplied through a liquid passing hole 11 formed on the side plate 1 and discharged from another liquid passing hole 13 formed on the side plate 2. Abutment plates 15, 16 are attached onto both sides of the intermediate plate 3. In a gear pump constituted above, gear shafts 7, 8 and the abutment plates 15, 16 of a gear are made of ceramics having surface roughness Ra of 0.05mum or less. Therefore, the gear pump can be used for pressurized transportation of the spinning solution where a foreign matter is deposited and grown in a pump sliding portion, and it is possible to remarkably reduce a failure due to seizure of GP, which has been generated much in the prior art, for a long- term service.
Patent JP-H11147936-A (JP)
Title: Epoxy resin composition for semiconductor sealing and semiconductor device
Inventor: OKABE YUKIHIRO
IPC: C08K3/28
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To obtain an epoxy resin composition which can give a cured product reduced in warpage at room temperature or in a soldering step, having excellent reliability such as soldering resistance and thermal cycling resistance by forming an epoxy resin composition comprising an epoxy resin, a phenolic resin curing agent, a cure accelerator, and an inorganic filler, wherein a specified amount of aluminum nitride is used as a part of the inorganic filler. SOLUTION: The epoxy resin comprises 5-90 wt.% polyfunctional epoxy resin represented by formula I (wherein R is a halogen or a 1-12C alkyl; (l) is 1-10; (m) is 0 or 1-3; and (n) is 0 or 1-4) or the like and at least 10 wt.% crystalline epoxy resin represented by formula II (wherein R is H, a halogen, or a 1-12C alkyl) or the like and having a melting point of 50-150 deg.C. The phenolic resin curing agent is represented by formula III (the symbols are as defined above) and is exemplified by a triphenolmethane type phenolic resin. The cure accelerator is tributylamine or the like. The aluminun nitride is used in an amount of 20-85 wt.% based on the total epoxy resin composition.
Patent JP-2001134933-A (JP)
Title: Floppy (registered trademark) disk and its manufacturing method
Inventor: NISHIKAWA SHOICHI
IPC: G11B5/84
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a floppy disk which has high recording density, small deformation quantity of a substrate and excellent characterirtics. SOLUTION: In the floppy disk having at least a flat layer, a magnetic layer and a protective layer on both surfaces of a flexible nonmagnetic supporting body, a relation: Ts=(Tg-Tc).(1-exp(-dg/(dg+dc)))+Tc is satisfied between glass transition temperature or thermal deformation temperature of the supporting body (Tg:  deg.C), thickness of the supporting body (dg: μm), thermal deformation/decomposition temperature of the flat layer (Tc:  deg.C), thickness of the flat layer (dc: μm) and maximum substrate temperature set at the time of manufacturing the floppy disk (Ts:  deg.C) and further substrate temperature at the time of manufacturing the floppy disk is below Ts ( deg.C).
Patent JP-H09162160-A (JP)
Title: Method and system for etching semiconductor wafer
Inventor: TANAKA HIROSHI
IPC: H01L21/306
Filed: 1995-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for etching a semiconductor wafer in which the smoothness of the etched surface is improved. SOLUTION: An etching bath 11 is filled with etching liquid 12, i.e., aqueous solution of KOH, which is then heated directly by means of a heater 13 applied with fluororesin coating 14. A silicon wafer 15 is then set in the etching liquid 12 and etched. Since the heater 13 is insulated electrically from the etching liquid 12, microcurrent is prevented from flowing into the etching liquid 12 at the time of heating. Consequently, roughening of the etching surface of the silicon wafer 15 is suppressed effectively and a smooth surface is obtained thus realizing highly accurate machining of the diaphragm using silicon, for example.
Patent JP-H08237726-A (JP)
Title: Method and equipment for radiocommunication
Inventor: PETORUSU FUBERUTSUSU GERARUDOU
IPC: H04J13/00
Filed: 1995-12-06
Abstract: PROBLEM TO BE SOLVED: To allow optimum allocation of a temporarily available radio frequency band by defining a suitable access rule. SOLUTION: A central control and application logic 51 controls the detection of all personal calls and output calls, and executes different connection and radio channel mergence through a multiplexer 50. At the time of BECT e.g. the logic 51 executes various combination controls of time slots with carrier frequency bands. The selection of a 1st or 2nd antenna 31 or 31' by a switch 53 is also controlled by the logic 51. In order to correctly select a time slot, the logic 51 scans a prescribed communication channel and the existence of interference in the radio frequency band is detected by a scanning means 52. When there is an available free communication channel, the means 52 allocates the channel and mutually exchanges a remote unit concerned and correct application information under the control of the logic 51 to establish communication by the channel.
Patent JP-H03179243-A (JP)
Title: Through hole filling condition inspecting device
Inventor: OKA KOJI
IPC: G01N21/88
Filed: 1989-12-07
Abstract: PURPOSE:To achieve a higher detection accuracy of insufficient or excessive condition of filling by irradiating a through hole with a beam when the hole is filled with a conducting material as provided in a printed circuit board to learn condition of filling using information obtained from the reflected light from the surface of the hole and in a skew direction. CONSTITUTION:When a filling condition detection signal is processed, in order to prevent a possible judgment from being decided that there is a defect due to a shade in a perimeter though it is actually within an allowable range, a reduction circuit 7 is used to reduce a multivalued surface condition detection signal. Then, the multivalued filling condition detection signal alone within a range of the multivalued surface condition detection signal reduced is extracted to inspect a defect with a filling condition inspecting circuit based on the signal. This ensures an accurate detection of the presence of a defect even in a through hole with the filling being insufficient in depth within a standard. In other words, a surface condition detection pattern 14 is reduced with a pattern reduction circuit 31 so as to meet a reduction value preset to prepare a surface condition detection signal 15. This signal is turned to a binary coded filling condition detection signal 16 to learn the presence of the defect.
Patent JP-H04186598-A (JP)
Title: Nonvolatile semiconductor memory
Inventor: TANAKA TOMOHARU
IPC: G11C16/02
Filed: 1990-11-21
Abstract: PURPOSE:To prevent a voltage distortion to a selecting gate, to suppress a potential difference of sections at the transient time to an external power source potential or less, and to prevent an erroneous erasure by applying an erasing potential to the gate in all cells when data is erased at a NAND cell block unit. CONSTITUTION:A memory cell array 5 is formed in a p-well 4 of an n-type Si substrate, and a block selector 7 erases a block. A control gate/selecting gate controller 6 applies an erasing potential from a controller 2 to the control, selecting gates in NAND cell blocks by the output of the selector 7. The erasing potential is generated from an erasing potential booster 1, applied to gates of the respective cells through the controllers 2, 6, and also applied to the well 4. A substrate potential is controlled by a controller 3, a bit line controller 8 is operated at the time of writing/reading, and disconnected from a memory array at the time of erasing. When all the control gates in the NAND cell block selected by this configuration are grounded and potential differences of sections of all the control gates, the selecting gates, the well of nonselected blocks are set to an external power source potential or less, erroneous erasure is eliminated.
Patent JP-H03179694-A (JP)
Title: Lighting circuit of electric discharge lamp for vehicle
Inventor: TODA ATSUSHI
IPC: H05B41/282
Filed: 1989-12-07
Abstract: PURPOSE:To prevent a dielectric breakdown of an electric discharge lamp or a trouble of a circuit element and an accident of electric shock when the lamp is replaced by installing a relay to allow power supply to an electric discharge lamp when a lighting switch and a switching means for power breaking are closed and a detection means of an abnormality of a lighting circuit. CONSTITUTION:A switching means for power breaking connected in series to a lighting switch 5 and a relay to allow power in common to the discharge lamp when the lighting switch 5 and the switching means for power breaking are closed are installed between DC voltage input terminals 3, 3' of the lighting circuit 1 of an electric discharge lamp for vehicle, and circuit abnormality detection means 7, 8, 19, 20 and 21 to detect an abnormality of the circuit condition of the lighting circuit 1 are installed there. When the circuit abnormality detection means 7, 8, 19, 20 and 21 detect a condition of incapability of lighting of the electric discharge lamp, an abnormality concerning an output current and an output voltage or an overvoltage of a battery are detected, the relay is made to work through the switching means for power breaking to break a supply of power voltage from DC power source to the lighting circuit 1. It is thereby possible for the lamp to prevent a breakdown of the circuit element and an electric shock.
Patent JP-H03179888-A (JP)
Title: Magnetic recording and reproducing device
Inventor: KITAZAWA KENICHI
IPC: H04N5/93
Filed: 1989-12-07
Abstract: PURPOSE:To prevent deflection of a pattern in the vertical direction at the changeover of a head by selecting the position of a replacement vertical synchronizing signal at special reproduction to be the same location as a reproduced vertical synchronizing signal at normal reproduction. CONSTITUTION:A means 12 is provided, which measures and stores a time from the changeover point of magnetic heads 3A, 3B till a vertical synchronizing signal of a reproduced video signal at normal reproduction. Then the location of the vertical synchronizing signal to be replaced for a prescribed time at special reproduction and after release of special reproduction is selected so as to be made coincident with the location of the vertical synchronizing signal of the reproduced video signal measured and stored at the normal reproduction. Even when a time from the head changeover point till the vertical synchronizing signal at normal reproduction changes due to the dispersion in the drum servo system or a tape whose switching point is deviated is reproduced, the deflection of the pattern in the vertical direction at changeover of the vertical synchronizing signal to be replaced is prevented.
Patent JP-H09163072-A (JP)
Title: Color image reader
Inventor: YAMADA MAKOTO
IPC: H04N1/028
Filed: 1995-12-07
Abstract: PROBLEM TO BE SOLVED: To reduce the difference in output level among light receiving elements without increasing the production cost and to reduce the power consumption of a white light source. SOLUTION: Light receiving elements 3R, 3G, and 3R of R, G, and B are so arranged that the optical path length between the light receiving element of B having the lowest sensitivity out of light receiving elements 3R, 3G, and 3R of R, G, and B and a white light source 1 is shorter than any other optical path lengths between light receiving elements 3R and 3G and the white light source 1.
Patent JP-H07150526-A (JP)
Title: Road-sign column
Inventor: SAITO KAZUMI
IPC: E01F9/619
Filed: 1993-11-25
Abstract: PURPOSE:To automatically wipe dirt, etc., caused to stick by touching to a sign section made of reflection sheet, etc., by oscillating or bending a wiping device by utilizing natural wind pressure, wind pressure when an automobile passes, and spray water pressure of a motor sprinkler. CONSTITUTION:A wiping device 20 which covers a sign section (reflection sheet 12) from the outside is mounted on a road-sign column in which the sign section is provided on a column main body 10. As for the wiping device 20, a mounting belt 21 which is wound around is detachably provided in an upper end section of the column main body 10, and many linear wiping materials 22 are provided on the whole periphery of the mounting belt 21 by locking their upper end sections 23 and hanging them along an outer peripheral face of the column main body 10. The linear wiping materials 22 are oscillated irregularly so that they come into contact with the surface of the sign section.
Patent JP-H07202655-A (JP)
Title: Clock composition device
Inventor: ROBAATO HENRII REONOUITSUCHI
IPC: H03L7/16
Filed: 1994-11-30
Abstract: PURPOSE: To generate plural corrected reference clock signals having frequencies different from that of an original reference clock signal by means of a delay- locked-loop having plural delay elements of which the number can be dynamically adjusted. CONSTITUTION: An N frequency divider 40 generates a corrected input signal F'IN obtained by dividing the frequency of an input signal FIN into N parts, and a clock synthesizer 402 can further synthesize frequencies in a wider range. the signal F'IN is sent also to a delay lock loop 408. In the loop 408, a controllable delay line consisting of plural controllable delay elements 406 is substituted for a voltage controlled oscillator in a phase locked loop. Since the lop 408 does not include a voltage controlled oscillator, the synthesizer 402 can be obtained which is capable of solving various problems in a jitter peak, stability, acquisition action, process variation, etc., which are likely to occur in the phase locked-loop.
Patent JP-H09130220-A (JP)
Title: Changeover switching means, unidirectional changeover switching means, bidirectional changeover switching means, bridge connection type switching means, changeover switching means
Inventor: SUZUKI TOSHIYASU
IPC: H02M1/00
Filed: 1995-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a changeover switching means provided with a complete simultaneous ON prevention function for which the number of parts is small and constitution is simplified. SOLUTION: An NPN transistor 1, diodes 3 and 4 and a PNP transistor 6 are serially connected in a forward direction in the order, the diode 2 is connected from the emitter of the NPN transistor 1 towards the base of the PNP transistor 6 and the diode 5 is connected from the base of the NPN transistor 1 towards the emitter of the PNP transistor 6.
Patent JP-2001139884-A (JP)
Title: Hard coat agent and optical disk
Inventor: KAI YOSHIAKI
IPC: G11B7/254
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a hard coat agent which can form a hard coat film excellent in clarity and resistances to scratch and solvents on the surface of a substrate and to provide an optical disk having a hard coat film formed from the hard coat agent. SOLUTION: The hard coat agent contains a silicon-containing hydrolyzate of a polyfunctional organoalkoxysilane, hydroxylated and unhydroxylated polyoxyalkylene-modified silicone oils, and a monoalkyl dicarboxylate and/or a monoalkenyl dicarboxylate. The agent is applied to the surface of a substrate, e,g, a substrate of an optical disk, and heated to polymerize the siliconcontaining hydrolyzate of a polyfunctional organoalkoxysilane, thus forming a hard coat film which exhibits excellent scratch resistance even when it is thin and which hardly allows cracks to occur.
Patent JP-H07173689-A (JP)
Title: Electrode plating device for chip type electronic parts
Inventor: TANAKA YUKIO
IPC: C25D7/00
Filed: 1993-12-20
Abstract: PURPOSE:To provide a device capable of efficiently and stably forming plating films having a uniform thickness on external electrodes of chip type electronic parts by a electroplating. CONSTITUTION:A first transporting means 23 consisting of rollers 24, 25 and an endless belt 26 and a second transporting means consisting of rollers 30, 31 and an endless belt 32 are arranged within a plating liquid 22. The respective endless belts 26, 32 are used as cathodes and anodes 28, 28 are arranged above the endless belts 26, 32. The plating layers are formed by electroplating on the external electrodes of the tip type electronic parts transported on the endless belts 26, 32.
Patent JP-H06169260-A (JP)
Title: Serial-parallel conversion circuit
Inventor: KOGA KOICHI
IPC: H03M9/00
Filed: 1992-11-30
Abstract: PURPOSE:To ensure a sufficient setup time even against high speed data and to surely execute serial-parallel conversion by allowing the serial parallel conversion circuit to latch data of an FF of a parallel circuit at a leading time of a clock. CONSTITUTION:A control signal C is at an L level at a 2nd clock CP2 and a selector 31 for a 1st bit selects an output P1, that is, 1st data D as an output Y1. A D flip-flop F21 latches the output Y1 at a leading of a clock CP3 and since the signal C for the period is at an H level, an output 01 of the D flip-flop F21, that is, data D1 are obtained at the output Y1. The operation is similarly repeated and odd number data such as data D1, D3... are outputted as the output 01 of the D flip-flop F21 in a 1/2 frequency division timing of the clock CP. Furthermore, a D flip-flop F12 for a 2nd bit, a selector 21 and a D flip-flop F22 are operated similarly to above, resulting that evennumber data such as data D2, D4... are outputted in a 1/2 frequency division timing of the clock CP. Finally parallel data (D0, D1), (D2, D3)... are outputted.
Patent JP-H06167924-A (JP)
Title: Hologram and its manufacturing method and information reading method
Inventor: EBINA KAZUYOSHI
IPC: G03H1/26
Filed: 1992-11-30
Abstract: PURPOSE:To reproduce information stably and correctly, to make the information into high density, and to remarkably improve security. CONSTITUTION:One of plural kinds of laser beams with different wavelength is selected appropriately and it is branched to two beams, and a hologram can be manufactured by recording the information by exposing them by irradiating the plane on one side of a sensitive material 6 with the laser beam on one side and the plane on the other side with the laser beam on the other side with an arbitrary prescribed incident angle, and repeating an exposure operation for the same number of times as the number of kinds of the laser beams, and a mechanically read code is recorded on a Lippmann type hologram that is a recording medium as color information by changing the gap of an interfernce fringe by contracting/swelling the hologram with a mechanical/chemical method at need, and also. reproducing angle condition information to reproduce the color information is recorded at need.
Patent JP-2001136676-A (JP)
Title: Charger
Inventor: SAKAKIBARA KAZUMASA
IPC: H01M50/204
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a charger which can detect the clogging of a blast path arranged in a battery. SOLUTION: This charger continues the rotation of a blast motor 44 after completion of charging, too. The charger retrieves the planned cooling temperature (S38), and when the measured battery temperature is higher by a specified temperature or over than the planned cooling temperature (S40: Yes), it lights up an LED lamp 39, indicates the clogging of the blast path 52 of the battery pack 50 (S42), and writes abnormality in the EEPROM 58 of a battery pack (S44).