baber/WOPTO huggingface dataset:
Patent JP-S57130717-A (JP)
Title: Zirconia die for drawing and its manufacture
Inventor: KAWANAMI TOSHIO
IPC: B02C17/20
Filed: 1981-02-06
Abstract: PURPOSE:To manufacture a durable die that gives soft metal drawing products excellent in surface luster by dispersing flocculated material of primary particles of ZrO2 powder containing a specified quantity of Y2O3, calcining after pressure forming, and polishing the face of the sintered body on which the drawn wire passes. CONSTITUTION:Flocculated mateial of primary particles of ZrO2 powder containing 3.6-8.0wt% Y2O3 and having <=0.5mu average crystal diameter is dispersed by wet grinding and dried to made powder for forming. Or, the size of the powder for forming is further adjusted when necessary. This powder for forming is formed to a specified shape by pressure of >=500kg/cm<2>, worked to the form of a dies nib, and die material for drawing is obtained by calcining it at 1,400- 1,800 deg.C in the atmosphere. Next, a die for drawing soft metal is manufactured by polishing the face on which drawn material passes. To obtain a die of higher density, it is desirable to make hot isostatic pressing after calcining in the atmosphere.
Patent JP-H06233032-A (JP)
Title: Black board information output processor
Inventor: TOMITA MICHIYA
IPC: H04N1/00
Filed: 1993-02-04
Abstract: PURPOSE:To easily transmit a content written on an electronic black board in the distance, to easily attain a working processing, and to enlarge a practical range by converting read information into electronic data, and combining the transmitting part of the electronic data with a computer which receives it. CONSTITUTION:An electronic black board 1 incorporates a CCD camera 3 which reads the described content of a writing face 2 of the board by a plane scanning, and the electronic black board 1 is equipped with a reading part 4 which receives the read information. Then, the reading part 4 is equipped with a converting part which converts the read data into the electronic data, and a transmitting part which transmits the converted electronic data to a transmitting part 9. The transmitting part 9 edits the received electronic data, and transmits the data. On the other hand, a compact computer 14 which receives the edited electronic data from the transmitting part 9 is combined with the electronic black board 1. In the computer 14, the edited electronic data are fetched as image information, and text-converted, and the data can be fetched in a management software.
Patent JP-S60161690-A (JP)
Title: Manufacture of semiconductor laser device
Inventor: KUWAMURA YUUJI
IPC: H01S5/223
Filed: 1984-02-02
Abstract: PURPOSE:To provide a semiconductor laser device which has a small threshold current, high reliability and large mass productivity and can be easily manufactured, by including a mask forming process for both impurity diffusion and mesa etching on a one conductive-type semiconductor substrate. CONSTITUTION:After a mask such as an SiO2 film 10 with a predetermined width for both diffusion and etching is formed on an N type GaAs substrate, a current blocking area 11 is formed with 2n diffusing. Next, after it is etched to form a mesa 12 with a predetermined height on the N type GaAs substrate using the SiO2 film 10 as a mask, the SiO2 film 10 is removed using fluoric acid. Thereafter, an N type Ga0.7Al0.3As clad layer 3, an undoped GaAs active layer 4, a P type Ga0.7Al0.7As layer 5 and P type GaAs cap layer 6 are epitaxial-grown in sequence on the GaAs substrate 11 with the mesa 12 formed, using an MO-CVD method. Since each layer has the form which takes over that of the mesa 12 on the substrate, a transverse mode control of light is possible. Lastly, a P-electrode 8 and an N-electrode 9 are formed to complete a semiconductor laser device.
Patent JP-S60160777-A (JP)
Title: Time synchronism system
Inventor: NISHIKAWA KAZUHIRO
IPC: H04N5/073
Filed: 1984-01-31
Abstract: PURPOSE:To eliminate delay time fluctuation caused in the propagation of a synchronizing signal by utilizing a picture synchronizing signal in a television broadcast wave, and detecting the phase difference between said wave and the time signal of a master station and a slave station to synchronize both stations. CONSTITUTION:The master station 4 is provided with a receiver RX receiving the television broadcast wave and a synchronizing signal separator 5 extracting a picture synchronizing signal from the output signal of the receiver, the output of the synchronizing signal separator 5 and a time signal generator 6 is compared by a phase comparator 7 and a phase difference signal (m) is transmitted to each slave station 8. On the other hand, the picture synchronizing signal is led out of a television radio wave in the slave station 8, the signal and the output of the time signal generator 10 of the own station are compared to output a phase difference (n). The phase difference (n) and the phase difference (m) transmitted from the master station are inputted to a phase adjuster 11 and the difference (m-n) of the both is detected and the time signal generator 10 is controlled to make it zero.
Patent JP-H08188494-A (JP)
Title: Equipment for producing semiconductor single crystal
Inventor: TSUJI HIDEKI
IPC: H01L21/208
Filed: 1995-01-10
Abstract: PURPOSE: To make possible to correcty measure a weight of single crystal by applying a gravity-type diameter-controlling method using a load detector to a wire type crystal pull-up mechanism. CONSTITUTION: A wire winding mechanism 20 containing a pull-up wire 4 and a wire winding drum 21 is rotatably hung down at a load-impressing point of a load detector 2. The weight of a growing single crystal and the weight of the wire winding mechanism 20 act as a balanced on the load detector 2. A vertical center line 6 of the load detector is coincident with a rotation axis of the wire winding drum 21, a rotation axis of the wire winding mechanism 20 and a single crystal-pulling up axis, and a center of gravity of whole of them is made to exist on the vertical center line 6 in the load detector. Transferring of the center of gravity in the wire winding mechanism according to a wire winding in pulling-up of a grown single crystal corresponds comparably to or lass then a variance in the diameter of the pull-up wire.  Therefore, an eccentricity of the single crystal-pulling up axis by the rotation of the wire winding mechanism 20 is sufficiently small, thus a stable pulling up of the single crystal and its weight measurement become possible.
Patent JP-S59144725-A (JP)
Title: Prevention of coloring of p-isopropylphenol
Inventor: KAWAMURA MASATO
IPC: C07C39/06
Filed: 1983-02-07
Abstract: PURPOSE:To prevent coloring of p-isopropylphenol with time effectively, by adding a small amount of disodium hydrogenphosphate and/or dipotassium hydrogenphosphate to it. CONSTITUTION:In preventing coloring of p-isopropylphenol useful as a basic raw material for synthetic resins, plasticizers, stabilizers, surface active agents, etc., about 5ppm - about 90ppm (preferably an aqueous solution of disodium hydrogenphosphate and/or dipotassium hydrogenphosphate is added to p-isopropylphenol in a molten state under heating) disodium hydrogenphosphate and/ or dipotassium hydrogenphosphate is added to it. This method can be applied irrespective of preparation of p-isopropylphenol.
Patent JP-H0996839-A (JP)
Title: Transistor matrix device and its driving method
Inventor: KAMATA TAKESHI
IPC: G02F1/1362
Filed: 1996-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a thin-film transistor matrix device with which the formation of auxiliary capacitors having a large capacitance value is possible and which obviates the degradation in the yield of production. SOLUTION: This transistor matrix device is provided with plural pieces of gate bus lines 16n, 16n+1, 16n+2,... and drain bus lines 18m, 18m+1,... in parallel. The device is provided with the TFTs 14 near the bottom ends of auxiliary patterns 30n, 30n+1, 30n+2,... The source electrodes 36 of the TFTs 24 are connected via contact holes 38 to pixel electrodes 12. These pixel electrodes 12 are formed in the positions beyond the gate bus lines 16n, 16n+1, 16n+2,... of the next row. Intermediate electrodes 40 for forming the auxiliary capacitors are formed at the bottom ends of the pixel electrodes 12.
Patent JP-H11210377-A (JP)
Title: Disc cutter of tunnel excavating machine
Inventor: YOSHIKAWA TADAO
IPC: E21D9/08
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a disc cutter of tunnel excavating machine, in which a large bending moment will not act on a cutting blade part and the pressing force by a cutter head acts chiefly in the radial direction of a supporting shaft body. SOLUTION: A disc cutter 1 is installed in the peripheral corner part 3a of a cutter head 3 mounted rotatably in the front part of the body of an excavating machine. On a cutter head 3 a supporting shaft body 18 is supported on a cantilever system through a carrier 13 in such a way that the forefront nearer the periphery is positioned in the rear with an angle of 30 deg. relative to the front surface, and a disc body 22 having a ring-shaped cutter blade 21 is installed rotatably at the forefront of the supporting shaft 18.
Patent JP-H10202560-A (JP)
Title: Automated guided vehicle
Inventor: MURATA MASANAO
IPC: B25J9/06
Filed: 1997-01-17
Abstract: PROBLEM TO BE SOLVED: To shorten the length of a vehicle body by forming the seating part a load-carrying platform into a flat shape, fitting a leg part on the opposite side of a manipulator, and making the width of the seating part smaller than the inner width of a hand. SOLUTION: In a load-carrying platform 20, a seating part 20A is formed into a flat shape, a leg part 20B is fitted on the opposite side of a manipulator 4, and the width of the seating part 20A is made smaller than the inner width of a hand 5. Where a carrier 3 is placed on the load-carrying platform, the following steps are taken: Picking up the carrier 3 → Moving the carrier 3 onto the load-carrying platform 20 in a picked-up condition → Lowering the carrier 3 under this condition → Lowering the hand 5 to the lower position of the seating part 20A of the load-carrying platform 20 → Moving the hand 5 under the seating part 20A if the next transfer is required.  Where the carrier 3 is picked up from the load-carrying platform 20, the following steps are taken: Operating the hand 5 under the seating part 20A and moving it to the lower position of the ventral picking-up position under the seating part 20A → Raising the hand 5 from the lower position of the seating part 20A, picking up the carrier 3, and transferring it onto a ground device.
Patent JP-H01192040-A (JP)
Title: Optical disk and optical disk device system
Inventor: ICHIYAMA YOSHIKAZU
IPC: G11B7/24035
Filed: 1988-01-27
Abstract: PURPOSE:To realize the same method of using as to write a comment on a publication consisting of paper by attaching a medium layer on which the recording/reproduction of information by a system different from that of the information by irregularity can be performed on a substrate on which the information is recorded irregularly. CONSTITUTION:An optical data disk 10 is constituted of the substrate having a bit 12 in which a program or data is formed by the irregularity of a surface and a magneto-optical recording medium layer 13. Since the medium layer 13 is formed by a reflecting film, the bit 12 is recognized as the change of the strength of reflected light and the data recorded on the medium layer 13 as the rotation of the plane of polarization of the reflected light, therefore, mutual interference is prevented from being generated, and they can be reproduced separately and easily. In such a case, the recording on the medium layer 13 of the disk 10 is performed so that the minimum interval of the recording can be set at length at least double or more times the interval of the ends of the maximum bit length of the bit recorded irregularly.
Patent JP-H05181190-A (JP)
Title: Camera
Inventor: IZUKAWA KAZUHIRO
IPC: G03B17/24
Filed: 1992-01-06
Abstract: PURPOSE:To easily change the cutoff frequency of a filter circuit according to film feeding speed by using a switched capacitor circuit for the reproducing circuit of a camera using a film provided with a magnetic according part. CONSTITUTION:The camera is equipped with bias resistors 20-23, a differential amplifier circuit 24, resistors 26-29, the switched capacitor circuit 25, an oscillation circuit 30, a counter circuit 34, AND circuits 35-38, and an OR circuit 39. The operation clock frequency fclk of the switched capacitor circuit 25, is changed according to the film feeding speed, to change the cutoff frequency fc of the switched capacitor circuit 25. Thus, tone cutoff frequency fc can be varied with a simple constitution, so that an unnecessary zone of a filter can be reduced, the influences of a noise, etc., can be reduced. and the reproducing capacity of magnetic recording data can be improved.
Patent JP-S58135795-A (JP)
Title: Wire for arc welding
Inventor: ARAKI NOBUO
IPC: B23K35/02
Filed: 1982-02-09
Abstract: PURPOSE:To develop a flux cored wire for arc welding which does not contain any harmful hydrogen source material and has stable feedability by coating a mixture of a solid lubricant such as graphite or molybdenum bisulfide and glass powder on the surface of a wire for arc welding. CONSTITUTION:A mixture of 1 or both of graphite and molybdnum bisulfide and 10-60wt% glass powder is coated as a lubricant on the surface of a flux cored wire for gas shielded arc welding at 5X10<-2>-5X10<-4>% ratio based on the weight of the wire. Both graphite and molybdenum bisulfide have excellent characteristics as a solid lubricant and since no hydrogen sources are contained  in the covering material, there is no generation of pits and blow holes in weld metal by hydrogen and the wire has excellent feedability.
Patent JP-S62176819-A (JP)
Title: Dice for preparing resin pellets
Inventor: IMAI KIYOSUMI
IPC: B29C48/05
Filed: 1986-01-31
Abstract: PURPOSE:To give no heat influence from cooling water filled on the surface of a dice to a molten resin of high temp. being sent under pressure into nozzle holes and to enable the smooth extrusion of the molten resin by providing a space between a part of a smaller diameter of a pipe forming a nozzle of a dice and an inserting hole of the dice main body. CONSTITUTION:A resin blended and molten by means of an extruder is transferred under pressure in a nozzle hole 5 and extruded into cooling water from the surface cured layer 4 of a dice 1 and cut into pellets by means of a rotating cutter. In this process, the temp. of the dice is controlled by a heating medium introduced and exhausted in/from heating jackets 8, 9. A space 7 is set between a part of a smaller diameter 6d of a pipe and an inserting hole 6 of the dice main body 2 and this space 7 performs a heat insulating function of depressing the heat influence from the surface of the dice. The molten resin in the nozzle hole 5 thereby shows little temp. decrease and neither adherence inside of the nozzle hole 5 nor clogging due to hardening occur. The molten resin is therefore smoothly extruded.
Patent JP-H07225338-A (JP)
Title: Zoom lens
Inventor: KUDO YOSHINOBU
IPC: G02B15/16
Filed: 1994-02-15
Abstract: PURPOSE:To provide a zoom lens without making an F number on the telescopic side comparatively not large, being suitable for a lens shutter camera and having a short back focus by composing it with three lenses or less and satisfying a specified condition. CONSTITUTION:This zoom lens is provided with a first group having a negative refractive power and a second group having a positive refractive power as a whole, composed of a positive front group and a negative rear group in order from the object side, the front group of the second group has at least two and more aspherical surfaces and, in order from the object side, is composed of three lenses or less including a first positive single lens and a second negative single lens. In order that the zoom lens contains sufficiently wide angle region and has a short back focus at the wide-angle end, two conditions must be satisfied: -fw<LD-LBw<0.7LD. In the equation, fw: the focal distance of a whole system on the wide-angle end, LD: the diagonal length of screen and LBw: the back focus of lens at the wide-angle end.
Patent JP-S57131616-A (JP)
Title: System of correcting displacement of moving table
Inventor: KITAHARA HARUMI
IPC: G05B19/18
Filed: 1981-02-10
Abstract: PURPOSE:To make possible to set a moving table at a correct position in an apparatus for conveying the moving table using a belt or the like, by detecting an error of position of the moving table caused by the change of distance between pulleys owing to stretch of a belt. CONSTITUTION:In a system wherein a table 4 is engaged on the belt 3 over the pulleys 1, 2, and is driven by a pulse motor and stopped at a prescribed position when the belt 3 has been stretched, resulting in the increase of the distance l' between the pulleys 1, 2, the actual displacement l=LP(1-l'/l) is calculated and the position of the moving table is corrected. (wherein LP is a commanded displacement). A displacement per rotational pulse of a motor is calculated by operating registers 13-15 through a commanded displacement register 10, a reference length memory 11, and an error displacement memory 12 so that the moving table can be conveyed to the correct position.
Patent JP-S56115228-A (JP)
Title: Experimental mold for manufacturing mold for coat hanger
Inventor: IDATE HIDENORI
IPC: B29C48/08
Filed: 1980-02-15
Abstract: PURPOSE:To provide an experimental mold for manufacturing the mold for a coat hanger by which the restrictor part of the mold for a coat hanger is made adjustable and an optimum restrictor thickness according to molding conditions can be obtained without the need for mold correction. CONSTITUTION:The restrictor 3 communicating between a manifold 2 and a die lip 4 can be regulated by varying the thickness of a spacer 7. The flow distribution is measured from extruded moldings. When the flow in the center of a molding is large in quantity, the spacer 7 is made thicker; when the flow in the center is small in quantity, the spacer 7 is made thinner. This is repeated to obtain a desired uniform restrictor.
Patent JP-S58136046-A (JP)
Title: Dry developer for electrophotography
Inventor: UCHIDA MITSURU
IPC: G03G9/087
Filed: 1982-02-09
Abstract: PURPOSE:To prevent a filming phenomenon on a photoreceptor, by adding hard fine powder surface-treated with an org. acid contg. fluorine to a toner. CONSTITUTION:A toner contg. low mol. wt. polypropylene resin or polyethylene resin is used, and to the toner is added hard fine powder surface-treated with an org. acid having a fluorocarbon group represented by the general formula (where n=0-9, m=1-3, w=1-3, Rf is a fluorocarbon group obtd. by substituting fluorine for at least 1 hydrogen atom in alkyl CnH2n+1-, alkenyl CnH2n-1- or aryl,  Ar is alkyl, aryl or aralkyl, and X is carboxyl, sulfonic acid or hydroxyl).
Patent JP-S60163466-A (JP)
Title: Manufacture of semiconductor device
Inventor: KAWAMOTO YOSHIFUMI
IPC: H01L21/306
Filed: 1984-02-06
Abstract: PURPOSE:To easily prevent the short circuit of the wiring of a high melting point metallic gate by a method wherein a high melting point metal remaining at a base stepwise difference is removed with good controllability after processing of a film of said high melting point metal used for a gate electrode. CONSTITUTION:An SiO2 film 102 and an SiO2 film 103 are formed on a P type Si substrate 101, and a W film 104 is formed on this insulation film; then, the gate electrode pattern of an MOS type FET is formed out of a photo resist 105. The gate electrode 106 is formed by 100% over dry etching of the W film 104 with the photo resist 105 as a mask. At this time, a W film etching remnant 107 is produced at the stepwise difference of the boundary between an active region and an element isolation region. The surface of the gate electrode 106 and the etching remnant 107 are changed into W oxides 108 and 109 respectively by oxidizing the W for 60min in 500 deg.C O2 gas, and then N type impurity layers of source and drain 100 and 111 are formed by As ion implantation from the surface of the Si substrate 101. The W oxides 109 and 108 are removed in a solution of ammonium acetate heated to 60 deg.C.
Patent JP-S58135029-A (JP)
Title: Application of blade in pipe transportation
Inventor: SAKAMOTO MUNEYUKI
IPC: B65G51/04
Filed: 1982-02-08
Abstract: PURPOSE:To obtain both vertical buoyant force and tractive force due to force of fluid and difference of specific gravity, by attaching blades to a flowing material in a pipe. CONSTITUTION:Variable attack angle blades 2 are further provided to a flowing material 1 to mount a buoyancy sensing device 3 and - buoyancy sensing device 4. In this constitution, the material 1 causes delay for fluid 5, and the delay acts upon the blade 2 as buoyant force and tractive force. For the excessive buoyant force, the material is lifted to cause a contact of the device 3 to a pipe 6 and decrease an attack angle of the blade 2, on the contrary, for the excessive weight, the device 4 is acted to increase the attack angle. In this way, both the buoyant force and the tractive force can be obtained.
Patent JP-H07224238-A (JP)
Title: Recording fluid for near-infrared reading, recording method using the same, and method for reading information with near-infrared ray
Inventor: SANO HIDEO
IPC: C09D11/033
Filed: 1994-02-15
Abstract: PURPOSE:To obtain a recording fluid for near-infrared reading which absorbs near-infrared rays well, dissolves well in a solvent, and is excellent in print density and resistances to light and water. CONSTITUTION:The fluid contains an aq. medium and at least one coloring matter of which the free acid form is represented by the formula (wherein A and C are each an optionally substd. phenyl or naphthyl group; B is an optionally substd. phenylene or naphthylene group; and n is 0 or 1).
Patent JP-H04250023-A (JP)
Title: Formation of thermoplastic resin vessel
Inventor: YOSHIKAWA YOSHIHIKO
IPC: B29C65/40
Filed: 1991-01-17
Abstract: PURPOSE:To perform easily and efficiently formation of a vessel by dealing with a change of size of a development sheet, by a method wherein simultaneously with heat melting of the parallel fringes of a side sheet, the side sheets each are stood up and melted parts are fused together, in the developed sheet where the side sheets are arranged on the circumferential part of the bottom sheet. CONSTITUTION:Side sheets b1, b2 each are provided by connecting with the circumference of a bottom sheet (a), in a development sheet A. In this case, in fringes d1, d2 each of bend lines c1, c2 each between a bottom sheet (a) and the side sheets b1, b2 each, a V groove is set up into a groove so that an angle theta1 of the same becomes about 90 degrees. Then an angle theta2 of the continuing groove is set up at a smaller acute angle than the 90 degrees by the bend line c1 and fringe d2. Then to form a vessel B of the development sheet, simultaneously with heat melting of the surfaces of acute angle grooves c1, c2, the side sheets b1, b2 each are stood up. Then a melted parts are stucks to each other, solidified and integrated into a box type.