baber/WOPTO huggingface dataset:
Patent JP-H01240017-A (JP)
Title: Method for testing digital/analog converter
Inventor: USUI SHUNICHI
IPC: H03M1/10
Filed: 1988-03-19
Abstract: PURPOSE:To simplify a testing circuit, to shorten testing time and to reduce testing cost by fetching the output of an analog signal through a low pass filter after converting an input pattern signal into the analog signal, comparing the output signal with the analog signal of a D/A converter analogously and judging normal/defect. CONSTITUTION:In case of a digital/analog converter for being measured DUT whose action is abnormal, even when a pattern, which changes linearly, is given to an input, as for an output, abnormality may be generated at the time of tx and ty as shown by the graphic V1. The V1 is the output of the direct DUT, and V10 is an output waveform on passing through a filter F at an integrating circuit by a simplified CR, for instance. Consequently, a differential voltage D1 becomes as the graphic indicates by comparing the V1 an V10 with an analog comparator C. In this case, an output difference detecting comparator CM judges a fault on the tx and the ty. Thus, since a D/A converter to be a reference and a circuit to adjust a gain are unnecessary, a testing device is simplified, a testing time is shortened, and testing cost can be reduced.
Patent JP-S63231710-A (JP)
Title: Manufacture of straddle type magnetic head
Inventor: MATSUOKA NARITSUYO
IPC: G11B5/265
Filed: 1987-03-20
Abstract: PURPOSE:To make a magnetic core highly accurate, to unit both cores for recording and reproduction, and erasure, and to increase the strength by forming many grooves at corner parts of core blocks for recording and reproduction, and erasure, and positioning the projection parts of one block at the groove part of the other. CONSTITUTION:The grooves are formed in the core comb-shaped block 15 for recording and reproduction which form an L type core 1 and an I type core 2 and the core block 16 for erasure which forms a nonmagnetic block 7, and the projection parts of one block are positioned at the groove part of the other; and glass is charged in the gap part 17 to join both blocks, which are sliced after external shape working to form a magnetic head. The track width TA of the block 15, the groove width TB of the block 16, and respective pitch PAPB are determined by machining with high accuracy; and both cores are united and increased in strength, and the man-hours of assembly are decreased.
Patent JP-H09257115-A (JP)
Title: Differential gear
Inventor: OGIWARA HARUO
IPC: F16H48/10
Filed: 1996-03-22
Abstract: PROBLEM TO BE SOLVED: To strengthen the drive force transmission passage inside a differential case rotated and driven by a drive shaft penetrated in a center through a torque input part and transmit a big torque. SOLUTION: This device is provided with output side gears 41, 43 arranged in both side of the axial direction of the torque input part 69 of a differential case 31, at least a pair of pinion gears 77, 79 for connecting them, storing holes 73, 75 for storing them slidably and turnably and a drive shaft 29 for transmitting the drive force of an engine to the differential case 31, after penetrating the side gear 41 and meshing with the torque input part 69. The axial direction ranges 97, 99 in which only either one of the pinion gears 77, 79 exists in the diameter direction is installed in the torque input part 69.
Patent JP-S52151101-A (JP)
Title: Control of reactor for methanation
Inventor: MATSUSHIMA HIDEO
IPC: C07C1/00
Filed: 1976-06-09
Abstract: PURPOSE: The reactor in which a gas containing CO, CO 2  and H 2  is methanized through the catalyst layer of nickel oxide, etc., is controlled by recycling a part of the formed methanized gas. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H03268377-A (JP)
Title: Partial formation of mixed crystal of quantum well structure layer, manufacture of semiconductor laser element using same and manufacture of wavelength selective detecting element using same semiconductor laser element
Inventor: NAKAI AKINOBU
IPC: H01S5/00
Filed: 1990-03-16
Abstract: PURPOSE:To change a quantum well structure layer constituting a light-emitting section partially into a mixed crystal without having an adverse effect on element characteristics by partially forming a film having a thermal expansion coefficient different from the quantum well structure layer onto the quantum well structure layer and thermally treating the film. CONSTITUTION:A film 1 having a thermal expansion coefficient different from a quantum well structure layer 5 is formed locally onto a GaInAsP group quantum well structure layer 5 on an InP substrate 7, thermal strain is given partially to the quantum well structure layer 5 through heat treatment, and the quantum well structure layer 5 is changed locally into a mixed crystal. That is, the film 1 having the thermal expansion coefficient smaller than the quantum well structure layer 5 is formed partially onto the quantum well structure layer, and thermally treated, thus applying compressive stress to the quantum well structure layer 5, then forming mixed crystal, provided that an absorption edge is shifted to the long-wave length side. Accordingly, the quantum well structure layer can be turned locally into the mixed crystal without having an adverse effect on element characteristics.
Patent JP-H06280719-A (JP)
Title: Electromagnetic switch for starter and starter
Inventor: TOMITE TOSHIO
IPC: F02N15/06
Filed: 1993-03-25
Abstract: PURPOSE:To surely and easily connect each constitutional part by additionally providing a plurality of protrusive parts respectively in each external peripheral part of a fixed core brought into contact respectively with internal peripheral parts of a bobbin and a coil case, and respectively press-fitting the bobbin, coil case and the fixed core connected by each protrusive part. CONSTITUTION:In a starter 1, when an electromagnetic coil 9 of an electromagnetic switch 7 is electrified, since a plunger 8 is attracted to a fixed core 11 to extrude a shaft 16, a movable contact assembly unit 15 comes into contact with a battery terminal 12 and a starter terminal 13 to rotate an electric motor part 2A, and an engine is started. Here in a tubular part 11a and a disk part 11b of the fixed core 11, respective many serration groups 31 (a) to (d), 32 (a) to (d) are additinally provided. A bobbin 19 and the fixed core 11 are connected by the one serration group 31, and also a coil case 10 and the fixed core 11 are connected by the other serration group 32. In this way, a contact case 14, coil case 10, fixed core 11 and the bobbin 19 are connected to each other.
Patent JP-S51141775-A (JP)
Title: A process for treatment of waste water containing heavy metals
Inventor: YANO TAKEO
IPC: C02F1/62
Filed: 1975-06-02
Abstract: PURPOSE: Heavy metals in waste solution are removed extremely advantageously in terms of material and equipment costs, without increasing the amount of sludge. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H02244399-A (JP)
Title: Path search device
Inventor: YAGYU TAKASHI
IPC: G01C21/00
Filed: 1989-03-17
Abstract: PURPOSE:To search for the shortest required time path in consideration of time loss due to right turning and left turning searching the path in the order of the shortest required time by employing the time, obtained by adding the time required to travel between intersections and the time required for right turning and left turning in an intersection, as the necessary time. CONSTITUTION:A search means 103 inputs a start point and a destination from a point input means 101 and map data required to search for the path are read out of a map data recording means 102. Then at least >=1 path from the start point to the destination is searched in the order of the shortest required time by employing the time, obtained by adding the time required to travel between intersections and the time required for right turning and left turning in an intersection, as the necessary time. Consequently, the search is made in the order of the shortest required time by employing the time, obtained by adding the time required to travel between intersections and the time required for right turning and left turning in an intersection, as the necessary time, so the shortest necessary time is obtained when an actual travel is made on the path and the path where an easy travel is possible while neither unnecessary right nor left turning is required can be searched for.
Patent JP-H03268608-A (JP)
Title: Logic level fixing circuit
Inventor: FUJITA KENJI
IPC: H03K19/0175
Filed: 1990-03-19
Abstract: PURPOSE:To fix a logic voltage level to a CMOS-IC input by connecting a pull-up resistor to an input line only when an input voltage level of the CMOS-IC is an standard value of an L level of the CMOS-IC or over to an input line. CONSTITUTION:A comparator 301 outputs a voltage turning on a P-MOS transistor(TR) 302 only when a voltage level of a data bus 104 is a voltage or over which is lower in an L level standard value of a data input voltage of an IC memory 103 and an L level standard value of a data input voltage of a CMOS-IC 101 to connect a resistor 303 and a power line Vcc thereby pulling up the level of the bus 104 to a level Vcc. Thus, when the bus 104 is a high impedance, the input voltage level of the connected IC 104 and the memory 103 is fixed to the L level standard value or below or a nearly Vcc voltage level. Moreover, when an L level is outputted from any IC to bring the level of the bus 104 to an L level, since the comparator 301 outputs a voltage to turn off the TR 302, the power supply Vcc and the resistor 303 are disconnected.
Patent JP-H08233916-A (JP)
Title: Battery inspecting method
Inventor: HIBINO SATORU
IPC: G01R31/36
Filed: 1995-02-28
Abstract: PURPOSE: To provide a method for inspecting a battery in which the time in which the capacity of the entire batteries of a plurality is lowered can be shortened and particularly a memory effect can be prevented in a nickel- cadmium storage battery in the method for inspecting the battery to inspect the capacities of a plurality of secondary cells connected to a load. CONSTITUTION: In order to inspect batteries 20, 22, they are inspected by discharging the batteries 20, 22. In the case that the certain battery to be inspected is discharged, it is conducted when the charge of the other battery is saturated. If the batteries 20, 22 are nickel-cadmium storage batteries, they are completely discharged in the case of discharging. Whether it is completely discharged or not is monitored by a voltage detector 38, and the capacity is checked by measuring the time up to the complete discharge.
Patent JP-S59193140-A (JP)
Title: Process for coating of monolithic carrier with alumina
Inventor: IKEDA RIICHI
IPC: B01J21/04
Filed: 1983-04-15
Abstract: PURPOSE:To reduce the amt. of activated alumina to be used, and also to reduce the amt. of a noble metal to be carried afterward by coating activated alumina only on the inside wall of cell of a monolithic carrier. CONSTITUTION:Both end surfaces of an external peripheral wall of a monolithic carrier 11 are sealed by cylindrical bodies 12, 13 having an inside wall formed to an almost same shape as the sectional shape of the monolithic carrier. Activated alumina M is charged to the upper cylindrical body 13 and sucked by a previously evacuated tank 1 to let the activated alumina to pass through the inside wall of the cell of the monolithic carrier 11 and is coated thereon. Namely, since the activated alumina contained in the upper cylindrical body 13 is passed through the inside wall of the cell of the monolithic carrier utilizing the differential pressure which can be generated between the evacuated tank 1 and the upper cylindrical body 13, there is no fear of causing sticking of the activated alumina to the external peripheral wall of the monolithic carrier. Only the inside wall of the cell is coated with the activated alumina.
Patent JP-S55164435-A (JP)
Title: Electric discharge machining system
Inventor: OOIZUMI TOSHIROU
IPC: B23H7/28
Filed: 1979-05-30
Abstract: PURPOSE:To complete an unfinished portion of a work perfectly and improve a working accuracy by a method wherein an electric discharge machining is effected by forcibly inserting an electrode into the work and the electrode is provided with a revolutional motion when the electrode is arrived at a predetermined position. CONSTITUTION:An electric discharge machining is effected under forcibly inserting an electrode 1 into a direction of a work 2. When the electrode 1 is arrived at a predetermined position, an output of a differential transformer 13 becomes lower than a comparison voltage VB of a comparator 19 and an output of a comparator 15 becomes ''1''. Then, a monostable multivibrator 16 is operated during a period of time preset in a time setting device 16. The electrode 1 effects a revolutional motion during this period of time and remove a part of the work 2 remained without being worked yet. After the period of time preset in the time setting device 16, an output of an AND gate 18 becomes ''1'' and is functioned to a pulse current generating device 3 as a signal indicating a finish of the working, thereby, a flip-flop 17 is reset and a series of the operations is completed.
Patent JP-S60210816-A (JP)
Title: Transformer iron core
Inventor: SAITOU TATSU
IPC: H01F27/245
Filed: 1984-04-04
Abstract: PURPOSE:To improve magnetic characteristic at the surface of iron core by forming the area near the surface of iron core joined by the abutting method in the zig-zag step lap mode wherein the iron core layer which does not generate the cut-away part is considered as the center. CONSTITUTION:The iron core blocks enclosed within the dotted line are abutted at the joining position 5 from the iron leg 1a to 1c and from the yoke 3a to 3c in the three stages step lap joint holding the step allowance. The step lap mode of three stages is arranged in zig-zag with the iron core not generating the cut- away part, namely the iron leg 1b - yoke 3b considered as the center. The step lap mode is formed at the area other than the surface of iron core. Thereby, rate of cut-away part is remarkably reduced at the surface of iron core. In other words, since the cut-away part is as much reduced at the surface of iron core where the iron core width is narrowed, magnetic saturation does not occur easily and magnetic characteristic is not deteriorated.
Patent JP-S55159778-A (JP)
Title: Photo-reaction device
Inventor: SUZUKI TAKASHI
IPC: A61L2/10
Filed: 1979-06-01
Abstract: PURPOSE: To facilitate the adjustment of the position of a lamp or the exchange of a lamp in a photo-reaction device for the disinfection of drinking water, etc., by attaching a joint tube liquid-tightly to a discharge lamp with a packing.  
     CONSTITUTION: A reactor tank 1 for UV-irradiation is furnished with an upper opening 2, a side inlet pipe 3 and an outlet pipe 4 through which the liquid 5 to be treated can be passed through said tank 1, a discharge lamp 6 composed of an outer quartz glass mantle, an inner luminescent tube 7, and lead wires 8, 8 elongated from one end of the lamp, and a terminal box 9 mounted on said upper opening 2 and provided with a relaying terminal 10 in the box and a connector 11 to the electric source. The discharge lamp 6 is attached to the terminal box 9 through a joint tube 12, an adapter 14, and a clamp ring 15. One end of said joint tube 12 is attached with a flange 13 and the other end is dipped in the content of the reactor 1. By using such an arrangement, the discharge lamp can be easily positioned to the optimum position in case of changing the reactor tank to the one having different height, only by changing the joint tube. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S59193645-A (JP)
Title: Output circuit of stereo demodulator
Inventor: HIKITA JIYUNICHI
IPC: H03D1/22
Filed: 1983-04-15
Abstract: PURPOSE:To improve switching characteristic by amplifying a current flowing to the 1st transistor (TR) of an output circuit and inserting a capacitor between an input terminal of an amplifier feeding a current to the base of the 1st and 2nd TRs and the base of both TRs. CONSTITUTION:The output circuit 6 consists of the TRs22,24, the amplifier 26 and the capacitor 36. After an output current of a stereo demodulator 2 flowing to the TR22 is amplified 26, the current is fed to the base of the TRs22,24, and after the de-emphasis characteristic is supplied to a stereo signal being an inverted output of the current flowing to the TR22 from an output terminal 14 formed to the collector of the TR24, the current is extracted. The circuit makes the driving voltage of the circuit 6 low and a high frequency component flowing to the base of the TR22 is absorbed by the capacitor 36 connected between the base and collector of the TR22. As a result, the leading characteristic of the switching of the TRs22, 24 by the charging of the stray capacitance between the base and emitter is improved and the switching waveform distortion is suppressed.
Patent JP-H05271755-A (JP)
Title: Manufacture of nonaging extra thin steel sheet for soft vessel by continuous annealing
IPC: C22C38/00
Filed: 1992-03-25
Abstract: PURPOSE:To manufacture an extra thin steel strip for a vessel excellent in nonaging properties by subjecting dead soft steel contg. specified trace amounts of Ti, Nb, B or the like to hot rolling and cold rolling under specified conditions, subsequently executing annealing and finally subjecting it to skinpass rolling. CONSTITUTION:A dead soft slab contg., by weight, <0.0015% C, 0.05 to 0.40% Mn, <0.06% P, <0.06% S, <0.10% acid soluble Al and <0.006% N and furthermore contg. one or more kinds among Ti; 3.4X([N%]-0.0010)% to 0.2%, Nb; 6.6X([N%]-0.0010)% to 0.03% and B; 0.79X([N%]-0.0010)% to 0.0040% is subjected to hot rolling at >=850 deg.C finishing temp. into a hot rolled steel sheet. Within 1.5sec after the discharging of the steel steel from a finish final stand of a hot rolling mill, while cooling is started on a run-out-table, the steel sheet is coiled, is pickled and is thereafter subjected to cold rolling into a thin steel strip, and this thin steel strip is annealed by a continuous annealing furnace. Next, it is subjected to skinpass rolling at 0.6 to 10% elongation percentage, by which the objective soft extra thin steel strip for a can having <=3 T refining degree and having nonaging properties equal to those of a batch-annealed steel sheet can be manufactured.
Patent JP-S62224195-A (JP)
Title: Rattle sound detector of electroacoustic transducer
Inventor: SUZUKI YOICHI
IPC: H04R3/04
Filed: 1986-03-26
Abstract: PURPOSE:To detect even an indistinct rattle sound by supplying a test signal to an electroacoustic transducer, and detecting time variation of power of the higher order harmonic component of an output of the transducer. CONSTITUTION:From a microcomputer 11, a frequency sweep sine wave digital signal of 50Hz-1kHz is generated, converted to an analog signal by a D/A converter 12, and supplied as a test signal through an amplifier 13, to a small- sized headphone 14 attached onto an artificial ear as the electroacoustic transduc er to be detected. An acoustic output from the headphone 14 is converted to an electric signal by a capacitor microphone 15, and converted to a digital signal by an A/D converter 18 through an amplifier 16, and a high-pass filter 17. The microcomputer 11 divides an data into frames constituted of continuous 100 points, takes a ratio of power (the sum of each sample value) in each frame, and the average of power of respective N frames before and after said power, total 2N frames, and sets its maximum value as an evaluated value.
Patent JP-2000264730-A (JP)
Title: Zirconia sintered compact and its production
Inventor: KONDO KAZUYUKI
IPC: C04B35/48
Filed: 1999-03-15
Abstract: PROBLEM TO BE SOLVED: To obtain a sintered compact having sufficient strength and a coefficient of thermal expansion close to that of high-strength metal by specifying the contents of the magnesia, silicon oxide and titanium oxide in raw material powder and consisting of the balance zirconia. SOLUTION: The sintered compact contains 8 to 12 mol% magnesia and 0.05 to 3 wt.% silicon oxide and the content of the titanium oxide is specified to <=5 wt.%. The average grain size of the entire part mixed with the respective components is regulated to 0.2 to 1.0 μm by using zirconia media, etc., when mixing the raw material powder at prescribed ratios. After the raw material powder is molded, the molding is sintered at 1550 to 1700 deg.C. The strength of the sintered compact may be further improved by subjecting the sintered compact to an annealing treatment. The annealing treatment of >=4 hours at 1000 to 1050 deg.C is effective. For example, an Si-Mg-O-base compound is formed in the grain boundary phase of the sintered compact and exists as segregate, the average grain size of which is <=10 μm and the content of which is <=10 vol.%.  The bending strength of the sintered compact is >= 545 Mpa and the coefficient of thermal expansion is >=8×10/ deg.C.
Patent JP-H10261820-A (JP)
Title: Sub-mount, optical element using it, and manufacture of its wiring section
Inventor: ENOMOTO AKIO
IPC: H01L23/12
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a sub-mount having a wiring section which is improved in continuity reliability and the manufacturing process of which can be simplified. SOLUTION: A sub-mount 1 is constituted of a ceramic substrate 2 having a first flat surface for placing optical parts and a massive electrode 3 which is buried in the second flat surface of the substrate 2 so that the first surface 3a of the electrode 3 may be exposed on the first flat surface of the substrate 2 in a flushed state and, at the same time, the second surface 3b of the electrode 3 may be flushed with the second flat surface of the substrate 2. An optical element is formed by providing a photodiode or laser diode on the first flat surface of the substrate 2 of the sub-mount 1 as the optical parts.  In addition, the wiring section of the sub-mount 1 is formed by forming punoced holes through a ceramic green sheet and filling up the punched holes with printed metallized paste composed of a conductive material, and then, baking the sheet after cutting the sheet into pieces or cutting the sheet into pieces after baking.
Patent JP-H10262579-A (JP)
Title: Production of cooked rice of imported rice retort
Inventor: TSUTSUMI RYUICHI
IPC: A23L7/10
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To obtain a product having dry and good texture as a retort food in imported rice. SOLUTION: This method for producing cooked rice of imported rice retort comprises subjecting imported rice to rice washing process 1, immersing the rice into about 0.1% citric acid solution for about 2 hr, subjecting the immersed rice to steaming process 3 at 100 deg.C for about 50 min to completely alfatize the starch, further, subjecting the steamed rice to water-absorbing process 4 for absorbing about 0.02% citric acid solution into the steamed rice, packing the treated rice into a pouch in a packing process 5 and carrying out cooking and sterilization treatment by retort process 6 at 115-120 deg.C for about 40 min.