baber/WOPTO huggingface dataset:
Patent JP-H04196594-A (JP)
Title: Semiconductor laser device
Inventor: ONO KENICHI
IPC: H01S5/00
Filed: 1990-11-28
Abstract: PURPOSE:To reduce the leak current of a semiconductor laser device so that the device can make laser oscillation with a small threshold current by aligning the joining interfaces of current blocking layers formed on both left and right sides of a double-heterojunction area to the lower surface of an active layer. CONSTITUTION:An n-type InP clad layer 4 and four-dimensional InGaAs active layer 3 are successively removed by etching the layers 4 and 3 with two kinds of etching solutions, such as hydrochloric acid and nitric acid, by using a silicon oxide 12 as a mask. By selectively removing the layers 4 and 3 in such way, a mesa-like groove is formed. After forming the groove, a p-type current blocking layer 6 is selectively buried and grown by an MOCVD method from the surface of the silicon oxide film 12. Since the section where a double- heterostructure comes into contact with the layer 6 is a high-resistance p-type area, the n-type area does not come into contact as in the case of the conventional buried type (BH type) laser and such a current blocking effect that has been indicated in a PPIBH structure can be realized in a more ideal form.
Patent JP-H10158396-A (JP)
Title: Production of polyimide
Inventor: OTA MASAHIRO
IPC: C08G73/10
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To enable to produce a polymide having the original excellent properties of the polymer and further having excellent thermal (molding) stability and melt flowbility, and useful for transportation equipments, etc., by polymerizing a specific amine component with an acid anhydride component and subsequently imidating the obtained polyamic acid. SOLUTION: This method for producing a polyimide comprises polymerizing (A) 1 mole of a diamine component comprising (A1 ) a compound of formula I (X is carbonyl, S; Y1 -Y4 are each H, methoxy, chlorine, bromine) or (A2 ) a compound of formula I which is partially replaced with a diamine such as o-, m- or p-phenylene diamine or m- or p-aminomethylaniline with (B) 0.9-1.0 mole of a compound of formula II (e.g. ethylene tetracarboxylic dianhydride or benzene tetracarboxylic dianhydride), (C) 0.001-1.0 mole of a compound of formula III (Z is 1,2-phenylene) and (D) 0.001-1.0 mole of a compound of formula IV[Z' is (monomethyl)phenyl etc.,] and subsequently imidating the obtained polyamic acid.
Patent JP-H10168564-A (JP)
Title: Sputtering target
Inventor: KIZAWA KENICHI
IPC: G02F1/136
Filed: 1996-12-09
Abstract: PROBLEM TO BE SOLVED: To provide a sputtering target capable of producing low resistance wire film suitable for a display for liq. crystals. SOLUTION: In a sputtering target used for a thin film deposition method in which a sputtering phenomenon by glow discharge is utilized, the sputtering target is essentially consisting of metallic chromium and metallic molybdenum, and the content of oxygen therein is regulated to <=200ppm. Furthermore, the compositional ratio of the metallic molybdenum to the metallic chromium is set to the range of 20 to 80wt.%. Moreover, as the metallic chromium, the one obtd. by solidifying metallic chromium powder large in grain size is used, and, as the metallic molybdenum, the dissolved material of metallic molybdenum is used.
Patent JP-2001147689-A (JP)
Title: Method and device for automatic performance, and program storage device with automatic performance program stored
Inventor: BUSHIDA TAKESHI
IPC: G10H1/00
Filed: 1999-11-19
Abstract: PROBLEM TO BE SOLVED: To compensate interruption of automatic performance which is caused by a lack of the capacity of a ring buffer for read of musical piece data from a storage medium. SOLUTION: Musical piece data stored in plural sectors of a floppy disk are read out by an FDD 19, and a sound source 17 is made to emit sounds to executes automatic performance. At the time of controlling this automatic performance, a CPU 11 acquires FAT information indicating the sectors assigned for storage of musical piece data from the floppy disk and stores this information in a RAM 14. The CPU 11 changes the performance speed in accordance with FAT information to automatically play the musical piece. By this constitution, the performance speed can be reduced if sectors where musical piece data are stored are physically discontinuous, and interruption of automatic performance is avoided though the capacity of the ring buffer for read of musical piece data from the floppy disk is reduced.
Patent JP-H03189102-A (JP)
Title: Preparation of cloth-textured concrete block
Inventor: NISHIMURO MAMORU
IPC: E02D29/02
Filed: 1989-12-19
Abstract: PURPOSE:To obtain a dense texture which has strong resistance to freezing and melting and to improve the durability of a block product by spreading a fabric sheet in a concrete form and casting a concrete material thereon to cure it. CONSTITUTION:A fabric sheet 2 is spread in a concrete form 1 in such a way that the inner bottom face and each inner side face are covered with the fabric sheet 2, which is fixed by means of a proper device so as not to be positionally shifted. A concrete material 3 with a lowly adjusted water-cement ratio to obtain a necessary and enough fluidity for a casting operation is placed in the concrete form from the upper side of the fabric sheet 2. By peeling off the fabric sheet 2 from a block product 4, the block product 4 on the surface of which the fabric texture 5 of the fabric sheet 2 is transferred is obtd.
Patent JP-H075078-A (JP)
Title: Probe card inspection method
Inventor: KATO MAMORU
IPC: G01M99/00
Filed: 1991-12-12
Abstract: PURPOSE:To rapidly and accurately judge whether a needle tip is located properly or not by pressing a glass flat plate to a measurement needle, tracing a plurality of needle tips successively from the glass flat plate side according to card data, and then displaying a needle tip image along with a judging reference frame. CONSTITUTION:The height and contact resistance of a needle tip can be measured by moving a compound inspection substrate 32 up and down in Z direction by a elevating and lowering unit 31 and then moving an electrode flat plate 33 while pressing it to a measurement needle 37 of a probe card 36. On the other hand, the needle tip positions of a plurality of measurement needles 37 can be inspected automatically by measuring the needle tip positions of the plurality of measurement needles 37 while moving an optical microscope 38 and a CCD camera 39 to a desired plane coordinate position with XY tables 41 and 42 and then displaying them along with the measurement reference frame on a display while a transparent glass flat plate 34 is being pressed to the measurement needles 37 by a specific amount.
Patent JP-2001147024-A (JP)
Title: Indoor unit of air conditioner
Inventor: IWAMI TAIZO
IPC: F24F13/20
Filed: 1999-11-19
Abstract: PROBLEM TO BE SOLVED: To obtain an indoor unit of air conditioner in which a line flow fan, a vane and a louver can be cleaned easily without requiring a large scale arrangement for receiving contaminated water. SOLUTION: In an air conditioner comprising a heat exchanger 10 and a line flow fan 11 disposed in the air passage 9 of a housing 8, and a vane 14 and a louver 14 for changing the direction of air being delivered into a room disposed on the outlet side of the air passage 9, the line flow fan 11, the vane 13 and the louver 14 are held integrally by means of a holder 15 fixed removably to the housing 8 so that they can be separated from a drive source disposed on the housing 8 side.
Patent JP-H01173700-A (JP)
Title: Posture detection of chuck for electronic component in automatic mounting machine
Inventor: NAKANO ICHIRO
IPC: H05K13/04
Filed: 1987-12-28
Abstract: PURPOSE:To accurately insert an electronic component into a printedcircuit board by a method wherein, before the eIectronic component is inserted into the printed-circuit board, the mutual position of an outer shape and a lead of the electronic component is measured, a reference position of a hand is corrected on the basis of this measured result and the component is inserted. CONSTITUTION:A hand 1 which has gripped an electronic component 3 is set in a prescribed position of a plate 5 of a measuring instrument 50; a lead 7 of the electronic component 3 is inserted into a hole 9 in the plate 5. During this operation, a displaced position and a tilt of a target mark 4 on the plate 5 are measured by using a sensor 11; a reference position of the hand is corrected. Accordingly, the position of an outer shape 6 with reference to the lead 7 of the electronic component 3 can be measured easily; it is possible to correct the position of the hand 1. By this setup, it is possible to mount the electronic component 3 on a printed-circuit board accurately.
Patent JP-H07156449-A (JP)
Title: Printer and image font-enlarging device
Inventor: TOTANI MASUMI
IPC: G06F3/12
Filed: 1993-12-02
Abstract: PURPOSE:To enable an image and a character of which sizes of basic fonts are different to be printed in a same size. CONSTITUTION:A printer is equipped with a memory 17 storing a basic font of a character composed of a 42X42 dot pattern, a memory 19 storing a basic font of a portrait drawing composed of a 32X32 dot pattern, an input part 13 inputting a data to be printed, printing parts 29, 31, and a conversion part 23 enlarging the basic font. The printer, when the data to be printed contains the character and the portrait image, enlarges the basic font of the portrait image to 3/2 with the conversion part 23, and prints the character and the portrait image in a same size.
Patent JP-H05140930-A (JP)
Title: Drawoff resisting pile
Inventor: SHIMADA HIROSHI
IPC: E02D5/54
Filed: 1991-11-20
Abstract: PURPOSE:To enhance the resistance against drawing off and also the sustaining force by reinforcing the sub-pile part, and improving the anchoring performance and reliability of the bottom-widened hole part with filter material. CONSTITUTION:At the bottoms of steel piles 1, 11, drawoff resisting mechanisms 2, 12 are installed projectively which are composed of horizontal plates 2a, 12a and reinforcing plates 2b, 12b. Otherwise, drawoff resisting mechanisms 22, 32, 42 made in an auger form with the lower dia. enlarged are installed projectively at the bottoms of steel piles 21, 31, 41, and the lower part of each steel pile and the drawoff resisting mechanisms are embedded in a filter material C placed in the bottom-widened hole part 6a in the bearing ground 5a.
Patent JP-H03192113-A (JP)
Title: Resin composition for semiconductor sealing
Inventor: KITAHARA MIKIO
IPC: H01L23/29
Filed: 1989-12-21
Abstract: PURPOSE:To obtain a resin composition for semiconductor sealing excellent in soldering-heat resistance by mixing a specified bismaleimide as an essential component with an epoxy resin containing a specified epoxy resin, an epoxy curing agent and an inorganic filler. CONSTITUTION:A bismaleimide (A) of formula I (wherein R1 to R4 are each H or a 1-4C alkyl) is mixed with an epoxy resin (B) containing 5-50wt.%, desirably 10-30wt.% epoxy resin of formula II (wherein R5 to R8 are each H or 1-4C alkyl), an epoxy curing agent (C) (a compound containing at least two phenolic hydroxyl groups in the molecule, e.g. novolac phenol resin) and an inorganic filler (D) (e.g. spherical silica) to obtain a resin composition for semiconductor sealing. The amounts of the components added are such that 10-500 pts.wt., desirably 25-300 pts.wt. total of components B and C are used per 100 pts.wt. component A, the equivalent ratio of component C to component B is 0.1-10, desirably 0.5-2, and 100-900 pts.wt., desirably 200-600 pts.wt. component D is used per 100 pts.wt. total of components A, B and C.
Patent JP-H10170144-A (JP)
Title: Device and method for cleaning raw air of air liquefaction and separation device
Inventor: HONDA HIDEYUKI
IPC: B01D53/26
Filed: 1996-12-10
Abstract: PROBLEM TO BE SOLVED: To reduce the power cost and the equipment cost in cleaning the air by removing the water and carbon dioxide in the raw air in an air liquefaction and separation device by an adsorber. SOLUTION: A refrigerant heat exchanger 33 to perform the heat exchange between the pressurized raw air and the low-temperature refrigerant is provided between a raw air compressor 1 and an adsorber 4, a water separator 34 to separate the condensed water in the low-temperature raw air passing from the refrigerant heat exchanger 33 and an air heat exchanger 35 to perform the heat exchange between the dried raw air passing from the water separator 34 and the pressurized raw air before entering the refrigerant heat exchanger 33 are provided.
Patent JP-H08155622-A (JP)
Title: Local pressure device
Inventor: TAKAMURA MASAYUKI
IPC: B22D18/02
Filed: 1994-12-05
Abstract: PURPOSE: To perform a squeeze suitable for a molded good by measuring a pressure to be applied to a pressure pin for a local pressure with a pressure sensor, measuring the position of the pressure pin by a position detecting sensor, and controlling the operation of the hydraulic cylinder of the pressure pin. CONSTITUTION: After the completion of the injection of molten metal and the lapse of a specified time, squeezing is started by a pressure pin 13. A pressure piston 13 is pushed into molded goods through rod 14b and piezoelectric element 20 by operating a hydraulic cylinder 14. A squeeze pressure is measured by the piezoelectric element 20. The moving distance (squeeze stroke) of the rod 14b is measured by a sensor 25. The hydraulic cylinder 14 is controlled so that the squeeze pressure becomes a set pressure. The hydraulic cylinder is stopped in a position where a stroke value is smaller than the full stroke value. After holding for a specific time, the hydraulic cylinder 14 is returned. Consequently, porosity can be reduced.
Patent JP-H11162978-A (JP)
Title: Manufacture of semiconductor integrated circuit device
Inventor: NAKATSUKA YASUHIKO
IPC: H01L29/78
Filed: 1997-12-01
Abstract: PROBLEM TO BE SOLVED: To uniformly form a gate insulating film constituted of a stacked layer (acid nitride film) of a silicon oxide film and a silicon nitride film in a wafer face. SOLUTION: A semiconductor wafer is loaded into chamber of a lamp annealing device and dinitrogen oxide is introduced into the chamber. Nitrogen in the chamber is substituted for dinitrogen oxide (N2 O purging). When dinitrogen oxide sufficiently spreads in the chamber, a lamp is lighted and the semiconductor wafer is heated (temperature rise). When the semiconductor wafer is heated to the decomposition temperature (about 1000 deg.C) of dinitrogen oxide, the supply of dinitrogen oxide is stopped and nitrogen is gradually introduced into the chamber instead.
Patent JP-H06178112-A (JP)
Title: Digital image forming device
Inventor: WADA SHINICHIRO
IPC: G03G15/00
Filed: 1992-12-10
Abstract: PURPOSE:To realize a right gradient by suppressing the fluctuation of a generating gamma characteristic. CONSTITUTION:A CPU 20 receives each image density detection value in plural gradation patterns from a density sensor and calculates the number of gradation in each density by defining the density of a black solid part as a maximum. Namely, the multi-valued level for the gradation level is calculated and the table of conversion data from the gradation level to the multi-valued level is stored in a ROM table 24. In a gamma conversion part 21, the gradation level is converted into the corresponded multi-valued level when multi-valued image signal is inputted by the table, a dither processing is performed for the multi- valued level in a dither processing part 22, a pulse width modulation is performed in a laser diode driver 26 based on the data after correction, and a laser diode 27 is driven.
Patent JP-H09175436-A (JP)
Title: Lining
Inventor: RAINHARUTO SHIYUTEIIFU
IPC: B62D25/18
Filed: 1996-12-11
Abstract: PROBLEM TO BE SOLVED: To improve a lining for a rotating wheel so as to absorb sound pressure generated by a rolling motion. SOLUTION: A rotating lining for wheel is composed of an air-impermeable surface-molding gas with self support action comprising a polymer material, fixed at a certain distanced from the wheel. The surface-molding 2 is constituted in the shape of double walls, and at least two chambers 3, 4 are formed in the surface-molding. Walls 5, 6 of the chambers 3, 4 facing a wheel 1 are provided with at least one penetration hole 7, 8, respectively, to form a Helmholtz resonator.
Patent JP-H04202474-A (JP)
Title: Paraffin wax composition and rubber composition compounded therewith
Inventor: IKEDA NOBUTADA
IPC: C08L91/08
Filed: 1990-11-30
Abstract: PURPOSE:To prevent the title compsn. from static ozone deterioration over a wide temp. range when a linear satd. hydrocarbon of a specified carbon number is compounded in a rubber product and to improve the appearance of the product by setting the proportion of the linear satd. hydrocarbon in a specified range. CONSTITUTION:A distillate is obtd. by the distillation of a crude oil under normal pressure followed by the vacuum distillation of the bottom oil. Then, arom. ingredients are removed from this distillate by solvent extraction and, if necessary, after purification with a hydroxide, solvent is dewaxed to obtain a crude wax as a by-product in the dewaxing process when a dewaxed oil is obtd. as a base oil for a lubricating oil. Then, this crude oil is furthermore deoiled with a solvent to remove a low b.p. wax to obtain a deoiled wax. The obtd. deoiled wax is distilled to obtain the title compsn. wherein the compositional ratio of each of 22-44C linear satd. hydrocarbons to the whole linear satd. hydrocarbon ingredients is 2wt.% or larger.
Patent JP-H11163673-A (JP)
Title: Small rectangular at-cut crystal oscillator bar
Inventor: WATANABE HIROSHI
IPC: H03H9/19
Filed: 1997-12-01
Abstract: PROBLEM TO BE SOLVED: To provide a rectangular crystal bar that offers a rectangular AT oscillator with high manufacturing yield which is a cylinder type that has 2 (mm) diameter and 6 (mm) length and a frequency of 20.736 (MHz). SOLUTION: In a rectangular AT-cut crystal oscillator bar which has length in the direction of an X axis, width in the direction of Z' and a frequency of 20.736 (MHz), longitudinal dimension is 3269 to 3639 (μm) and width is 1130 to 1250 (μm). It is preferable that a part which fixes the rectangular AT-cut crystal oscillator bar to a lead is located between 200 and 450 (μm) from one edge of a longitudinal direction.
Patent JP-H07191236-A (JP)
Title: Optical circuit and its production
Inventor: NISHIMOTO YUTAKA
IPC: G02B6/42
Filed: 1993-12-27
Abstract: PURPOSE:To obtain an optical circuit with which optical coupling between an optical waveguide and various respective optical parts with high efficiency and a reduction of the cost of the optical circuit are possible and which has reliability to a temp. fluctuation, vibration impact, etc., CONSTITUTION:The optical waveguide 2 consisting of a quartz member and a reflection mirror 7 which is formed by using the same material as the material of the optical waveguide 2 on the Si substrate l between the optical waveguide 2 and a semiconductor light source and is solid-state element on the Si substrate 1 are formed on the Si substrate 1. And the reflection surface 71 is formed. The reflection mirror consisting of the Si member is otherwise formed on the Si substrate l and the reflection surface is formed by anisotropic etching of Si. The reflection mirror and the Si substrate are respectively provided with recessed and projecting structures which are respectively fittable to each other by anisotropic etching of the Si, by which the mirror and the substrate are fitted and fixed.
Patent JP-H10167473-A (JP)
Title: Article stacking device and its method
Inventor: YOKOYA SHIGEHARU
IPC: B65G47/52
Filed: 1996-12-11
Abstract: PROBLEM TO BE SOLVED: To provide the article stacking device and its method, which is comparatively simple in structure, and is however high in processing capacity. SOLUTION: A palette P is moved up to a stacking station by an elevating device 40, and each article M in an article standby part 16 adjacent to the stacking position, is transshipped by the use of a clamping device 62. Each article M is directed to a prescribed direction by a direction turnover means 20 so as to be on standby. Each article M at the standby part 26 is moved up to a prescribed level, and is clamped by the clamping device 62 so as to be carried over to the palette P. In this constitution, the clamping device 62 is not requires to be moved up and down at the time of clamping and its releasing, besides, since the direction of each article M is turned over on advance, there is not need for providing a rotation mechanism or a moving up and down mechanism for the clamping device 62, a mechanism for operating the clamping device 62 can thereby be simplified.
Patent JP-H04198097-A (JP)
Title: Method for growing znse crystal
Inventor: KATO HIROYUKI
IPC: C30B11/00
Filed: 1990-11-29
Abstract: PURPOSE:To stably produce a high-quality ZnSe single crystal by dissolving a source crystal of ZnSe on a high-temperature part side of a laminate solvent of materials having different vapor pressure and growing the crystal on a low- temperature part side. CONSTITUTION:A laminate solvent (high-temperature part: Se or Se-Te; low- temperature part: Te) consisting of a material having different vapor pressure is gradually heated and a source crystal is dissolved in a high-temperature part at vapor pressure of a solvent on a high-temperature part side higher than vapor pressure on a low-temperature side and a crystal of Zn-Se dissolved is grown in a low-temperature part.
Patent JP-H01172877-A (JP)
Title: Information recording device
Inventor: ENDO MAKOTO
IPC: G03G15/04
Filed: 1987-12-26
Abstract: PURPOSE:To obtain proper screen illuminance without any user's adjustment by controlling the quantity of light emission of a light source for lighting according to a signal obtained by a light quantity detecting means which detects the quantities of image light beams for displaying and recording. CONSTITUTION:On the optical path between an area where a mirror 10 crosses a reader optical path during copying operation and a projection lens 5, a transparent glass member 15 as the light quantity detecting means is provided slantingly, and a photodetecting element 16 as a light quantity detecting means which photodetects part of the image light reflected by the glass member 15 is arranged nearby an image forming lens 5. Then when this device is used as a reader, the quantity of the image light for displaying is detected and the quantity of light of a light source is controlled according to its detection signal to adjust the brightness of a projection image on a display means 8. Further, when this is used as a printer, the quantity of image light for recording is detected and the quantity of light emission of the light source is controlled according to its detection signal to adjust the density at the time of image recording. Consequently, the proper screen illuminance is easily obtained.
Patent JP-H09171409-A (JP)
Title: Traveling controller for automatic traveling vehicle
Inventor: MIZUKURA TAIJI
IPC: A01B69/00
Filed: 1995-12-20
Abstract: PROBLEM TO BE SOLVED: To secure the safety of traveling vehicle during unmanned automatic traveling. SOLUTION: When an operator turns on an automatic mode setting switch 46 and steps on a clutch pedal 60 to a traveling clutch device, a safety switch 93 is turned on so that an automatic mode can be started. Besides, when the safety switch 93 is turned on while keeping the ON state of automatic mode setting switch 44, the fault such as short-circuiting of this safety switch 91 is judged, the state of executing only the stop of traveling is held without stopping an engine or the engine is stopped. In this case, such a state is indicated on a display device 48. Thus, since the unmanned automatic traveling operation always keeping the ON state of safety switch 93 during traveling in the automatic mode is not performed, safety can be secured.