baber/WOPTO huggingface dataset:
Patent JP-H10213293-A (JP)
Title: Enrichment method of ozone gas
Inventor: KOIKE KUNIHIKO
IPC: F17C11/00
Filed: 1997-01-28
Abstract: PROBLEM TO BE SOLVED: To enrich ozone in a high density by reducing the pressure in a storing vessel after selecting, adsorbing and saturating the ozone to a silica gel in the storing vessel. SOLUTION: A storing vessel 1 filled with silica gel 2 as an adsorbent inside is stored in an outer box 3 formed of a heat insulating box and cooled to approx. -78 deg.C by dry ice 4 stored in the outer box 3. After ozonizing oxygen gas introduced from the raw material oxygen supply source 11 of an oxygen cylinder by an ozone generator 9, the mixing gas of ozone-oxygen is produced and controlled to a certain flow rate by a flow rate controller 10 and supplied to the storing vessel 1 through an ozone supply route 5. Here, after adsorbing and saturating the ozone to the silica gel 2, by reducing the pressure in the storing vessel 1 upto the pressure of the partial pressure or less of the supplied ozone, oxygen is separated and discharged from the silica gel 2 preferentially and the ozone density in the storing vessel 1 is enriched.  The enriched ozone is taken out by increasing the temperature of the storing vessel 1.
Patent JP-S59124494-A (JP)
Title: Fitting method of canvas on sailing ship
Inventor: ENDOU YOUICHI
IPC: B63H9/08
Filed: 1983-02-01
Abstract: PURPOSE:To enable a canvas to be simply and easily fitted to a canvas support body by fitting a canvas fringe body, fitted with a canvas, to a rigid body frame and joining a canvas fringe body, united in one body with said rigid body frame, with a canvas support body and subsequently removing the rigid body canvas frame from the canvas fringe body. CONSTITUTION:A rigid body frame 5 is fitted to a canvas frame body 2, fitted with a canvas 1, by means of a bolt 6. The canvas 1 united in one body with a rigid body frame 5 is fitted to a position of a crossbeam 7'' of a canvas support body 7, and the canvas fringe body 2 is joined with the canvas support body 7 by means of a bolt and nut 8 through a redundant hole 5'' drilled in the rigid body frame 5. Subsequently, the canvas 1 is fitted to the canvas support body 7 through removing the bolt 6 and detaching the rigid body frame 5 from the canvas fringe body 2.
Patent JP-S54106061-A (JP)
Title: Blooming method for killed steel
Inventor: YAMAMOTO AKIO
IPC: B21B45/00
Filed: 1978-02-08
Abstract: PURPOSE:To improve the yield of the blooming, by processing as follows; the steel ingot is charged into the soaking pit while the riser and a part of main body of the killed steel in the mold are  at the unsolidified state, and after the surface of the ingot is fast heated at a specified speed of  temperature rise, the ingot is dragged out at a limited condition, and then, the bottom rolling is carried out at a strong reduction in the latter half of the rolling pass schedule. CONSTITUTION:The rapping is carried out at the time t1', when the riser and a part of main  body of the killed steel in the mold 1 on the bed plate 3 are at the unsolidified state 4, and the  ingot is charged into the soaking pit at the time t2'. Then, the surface of steel ingot is fast heated  at the speed of temperature rise 200- 500 deg.C/H, and the ingot is dragged out at the condition that  the central zone of ingot is completely solidified and the internal temperature is more than 150 deg.C  higher than the surface temperature (the time t3'-t4'). After that, while the blooming is carried  out, the bottom rolling is performed at a strong rolling reduction in the latter half of the rolling  pass schedule. Hereby, the degree of penetration of rolling reduction into the central zone of the  steel ingot is improved, so that the strethch at the central zone becomes larger, and the cut-off  percentage of the top of the steel ingot is reduced as compared with the conventional method.
Patent JP-H09213901-A (JP)
Title: Semiconductor memory having tegs and testing method thereof
Inventor: TANIGAWA TAKAO
IPC: H01L21/8242
Filed: 1996-01-30
Abstract: PROBLEM TO BE SOLVED: To accurately reflect the characteristics of memory cells of a semiconductor memory by forming TEGs in a region to form a memory cell array in the same manufacturing method at the same time and providing an interface means for independently measuring specified electric characteristics. SOLUTION: On a semiconductor chip 1 circuit blocks composed of memory cells are formed and TEGs 3 are formed in regions of a memory cell array 2. Transistors of the cells have drain regions connected to bit lines 4 to form TEG drain electrode pads 6. Word lines 5 area connected to gate electrodes to form TEG gate electrode pads 8. An interconnection 10 is formed on an outside region of the array 2 to form substrate potential fixing pads 11. TEGs 3 are incorporated in a region of the array 2 and produced in the same production process whereby the transistor characteristics can be measured, without increasing the chip area of the semiconductor memory.
Patent JP-S55108009-A (JP)
Title: Servo circuit
Inventor: SUGIYAMA YUUICHI
IPC: G11B21/08
Filed: 1979-02-10
Abstract: PURPOSE: To perform high speed charge and discharge, by ON-OFF control of the position integrator with the off-track detection signal of carriage given by the specific dead band.  
     CONSTITUTION: The output voltage EP 1  from the position deviation detection circuit is fed to the comparison circuit 12 including the resistors R 4  and R 5  and the comparison circuit 13 including the resistors R 8 , R 9  via the operational amplifier 11 including the resistors R 1 WR 3 . The voltage +5V divided with the dividing resistors R 6 , R 7  is fed to the circuits 12 and 13, the output of which is picked up via the inverters 12a, 13a respectively, it is fed to the switches SW 1 , SW 2  controlling the ON-OFF of the position integrator 5 to control the switches SW 1  and SW 2 . Further, specific dead band is formed with the comparison circuits 12, 13 and discharge of the position integrator 5 is made only when the width of dead band is exceeded to enable high speed charge and discharge. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H08203003-A (JP)
Title: Magnetic recording and reproducing device
Inventor: FUKUHARA YOSHIKAZU
IPC: G11B5/027
Filed: 1995-01-31
Abstract: PURPOSE: To provide a magnetic recording/reproducing device which can always obtain the highest picture quality even when the kind of the magnetic recording medium changes or the change with time occurs in the medium and offers an optimized picture quality depending on an image to be recorded. CONSTITUTION: Recording and reproducing are repeated while varying the recording current density by means of an electronic volume 16 with the running speed of a video tape 5 kept smaller than the one in the usual operation in compliance with the command from a remote controller 11 so as to measure the relation between the recording current density and the reproduced output level using a processor 10. Based on the characteristic curve obtained by the measurement of the processor 10, the optimum recording current level is set and video signals are recorded with the recording current density thus set.
Patent JP-H04248524-A (JP)
Title: Electrooptical device
Inventor: SENBONMATSU SHIGERU
IPC: H01L49/02
Filed: 1991-02-05
Abstract: PURPOSE:To improve the yield of substrates by forming >=2 nonlinear resistance elements on one picture element electrode so that signal electrodes free from disconnection can be selected. CONSTITUTION:The signal electrodes 9 consisting of a transparent conductive film are constituted by forming an indium tin oxide film and patterning this film by photoetching. The nonlinear resistance films 3 are formed by a plasma CVD method using a gaseous mixture composed of gaseous silane and gaseous nitrogen in the case of, for example, a silicon nitride film. The signal electrodes 4, 5 are formed by sputtering a chromium metal on the nonlinear resistance films 3. The signal electrodes 4, 5 and the nonlinear resistance films 3 are selectively removed by one time of photolithography stage, by which the two nonlinear resistance element parts 6, 7 are formed in the picture element electrodes 2 and the nonlinear resistance element parts 8 are formed between the signal electrodes 4 and 9 and between the signal electrodes 5 and 9. Then, the signal electrode 5 can be used in place by shorting the nonlinear resistance element parts to the signal electrode 4 if the disconnection arises in the signal electrode 4.
Patent JP-H06231430-A (JP)
Title: Magneto-resistance effect type magnetic head
Inventor: KOGA NAOKI
IPC: G11B5/39
Filed: 1993-02-01
Abstract: PURPOSE:To make possible the control of Barkhausen noise and the efficient application of a bias magnetic field at a low cost in a magneto-resistance effect type magnetic head. CONSTITUTION:A soft magnetic film 6 for applying a bias magnetic field is formed on an antiferromagnetic substance film 9 formed on a magneto-resistance effect film 8. A simple structure can be obtd. while controlling Barkhausen noise and the number of processes and the number of targets used can be reduced.
Patent JP-S62170361-A (JP)
Title: Thermal head and manufacture thereof
Inventor: ONISHI HIROO
IPC: B41J2/335
Filed: 1986-01-24
Abstract: PURPOSE:To ensure favorable contact of a thermal head with a printing paper and enable the head to print with high quality irrespective of the smoothness of the paper, by providing a heat generating region for printing in a protuberant form. CONSTITUTION:A glaze layer 11 substantially semi-circular in vertical cross-sectional shape and substantially belt-like in plan view is provided on one side of an insulating substrate 10 consisting of a ceramic or the like. A plurality of substantially semi- spherical projected regions 12 are provided at an upper part of the glaze layer 11. In a direction orthogonal to the longitudinal direction of the glaze layer 11, a plurality of heat generating layers 13 in a strip form in plan view are provided in parallel at regular intervals and astride the glaze layer 11, corresponding to the number of the projected regions 12. The layers 13 cover top parts of the projected regions 12, and the heat generating layer 13 on the projected region 12 is called a heat generating region 13a. The surface of the layer 13 exclusive of the heat generating region 13a is covered by a conductive layer 14 formed of, for example, gold or aluminum, whereas the heat generating region 13a is left exposed. Surfaces of the layers are covered by a protective layer 15, which is also protuberant on the projected regions 12.
Patent JP-H10192923-A (JP)
Title: Thrust receiving block for multi-step mill
Inventor: HORIGUCHI YASUHIKO
IPC: B21B13/14
Filed: 1997-01-09
Abstract: PROBLEM TO BE SOLVED: To eliminate the uneven rolling caused by the non-uniformity of rotation of a ring member by interposing a thrust bearing between the inner surface of an alligator grip and the ring member. SOLUTION: In a thrust receiving block for multi-step mill rotatably holding the ring member to a pin 3 inserted from the upper part to the lower part of the alligator grip 2 of the alligator grip block 1, the thrust bearings 8, 8 are interposed between the inner surface of the alligator grip 2 and the outer ring 7. By this constitution, the outer ring 7 is not only worn by friction contact with the inner surface of the alligator grip 2 but also, smooth rotation is secured. As a result, the uneven rotation of the work roll is eliminated and the rolled defect is not caused. Thereafter, the product quality and the yield are improved. Further, since the worn damage of the outer ring 7 is eliminated, the productivity is improved.
Patent JP-H10195865-A (JP)
Title: Method for constructing continuous underground wall, and press fitting plate
Inventor: SUEOKA TORU
IPC: E02D5/02
Filed: 1997-01-10
Abstract: PROBLEM TO BE SOLVED: To save the working space, and to reduce the manhours by connecting a press fitting plate, which is provided with an injection pipe and a slurry discharging pipe, to a guide part, which houses anchor, and a bottom part press fitting plate, which is provided with an injection port and a suction port, in series, and applying tensile force to the anchor for press-in. SOLUTION: An injection pipe 4 and a slurry discharging pipe 5 are arranged in a top surface and a bottom surface of a plate body 2, which is provided with guide parts 3 in both sides thereof, so that an upper end opening part 41 and a lower end opening part 42 of press fitting plates 1 coincide with each other and that an upper end opening part 51 and a lower end opening part 52 thereof coincide with each other. Injection ports 43, 43 are provided in both ends of a bottom surface of the plate body 2 of a bottom part press fitting plate 11, which is inclined from a central part thereof to both ends thereof, and a lower end of the slurry pipe 5 is opened at a suction port 53 formed at a central part of the plate body 2. A bottom surface of the plate body 2 of the bottom part press fitting plate 11 is provided with a press fitting blade part 22 formed into an inverted V-shape.  An upper end of a guide part 3 is provided with a center hole jack or the like, and tensile force is applied to an anchor, which is provided in the construction predetermined ground of a continuous wall, for press-in. With this structure, working manhours is reduced, and construction period can be remarkably shortened.
Patent JP-S57129022-A (JP)
Title: Analog-to-digital converter
Inventor: HASHIMOTO HARUO
IPC: H03M1/04
Filed: 1981-02-03
Abstract: PURPOSE:To raise apparent resolution, by superposing a random noise on an input analog signal, executing its A/D conversion, and accumulating data obtained by sampling this output by a prescribed number of times. CONSTITUTION:A random noise from a random noise generator 1 is superposed on an input analog signal A, and it is applied to an A/D converter 3 of (m) bits. Subsequently, in accordance with a converting command pulse Ps from a timing circuit 2, sampling is executed by a prescribed number of times N in the sampling period in case when the A/D converter 3 is usually used. Subsequently, sampling data D/A of said N times portion are accumulated by an adder 4 and a register 5, and by a strobe signal Pb from the timing circuit 2, an output DB of the register 5 is inputted to a register 6 and is stored. According to such constitution, each sampling data becomes each different value, therefore, a data DB which has accumulated said each data becomes data having resolution of (n) (n>m) bits.
Patent JP-H01222810-A (JP)
Title: Method and device for machining pipe
Inventor: NAGAYOSHI AKITO
IPC: B23C3/00
Filed: 1988-01-27
Abstract: PURPOSE:To accurately machine a projecting object or a regenerating pipe at the time of regenerating the installed pipe portion connected to the main pipe, etc. of a sewage by cutting a hole corresponding to the shape of a hole to be opened on the projecting object into the main pipe or the regenerating pipe. CONSTITUTION:A machining device 10 is placed in a pipe 12 from a shaft and then, a cutter 20 is moved to a position opposite to the pipe opening of the pipe 18. At the time of cutting, a driving mechanism 50 is operated while the cylinder mechanism 40 of a driving mechanism is extended and, as a cutter 20 is lifted up while being rotated, a hole is opened on the portion of a pipe 16 closing the pipe opening of a pipe 18. As the cutter 20 is moved in such a way that the angular displacing quantity of the rotation axis of the cutter 20 is the same as the displacing quantity thereof in the axial direction of the pipe 12, the moving track of the cutter 20 becomes a circular form. On the other hand, when the angular displacing quantity is larger than the displacing quantity in the axial direction of the pipe 12, the moving track of the cutter 20 becomes a long elliptical form extending in the circumferential direction of the pipe 12. Also, when the angular displacing quantity is smaller than the displacing quantity in the axial direction, the track becomes an elliptical form extending in the axial direction.
Patent JP-H01191156-A (JP)
Title: Digital image forming method
Inventor: CHIBA SHUNICHI
IPC: G03G15/08
Filed: 1988-01-27
Abstract: PURPOSE:To improve dot reproducibility of a digital image by employing stuff possessing a specific, volumetric, average particle diameter and a specific cohesive degree as toner. CONSTITUTION:A volumetric, average, particle diameter -Dv and a cohesive degree of toner used in a conventional electrophotographic method are 8-15mum, and 15-30%, respectively. On the other hand, the title method employs the toner possessing a volumetric, average, particle diameter of below 6.0mum, preferably below 5mum, and a cohesive degree of below 10%, preferably below 8%. Thus, developing defect is prevented to improve dot reproducibility. In addition, central part missing due to defect transfer, toner scattering, etc., are prevented to attain high image quality. Moreover, the cleaning defect of a photosensitive body surface in continuous copying and toner filming can be prevented.
Patent JP-2000216271-A (JP)
Title: Nonvolatile semiconductor storage device
Inventor: OKEYA SHUJI
IPC: H01L21/8247
Filed: 1999-01-22
Abstract: PROBLEM TO BE SOLVED: To obtain a steep threshold voltage distribution through making the injecting amounts of the changes generated by an avalanche breakdown into the floating gates of memory cells equal to each other. SOLUTION: A source impurity region 4 and a drain impurity region 5 are separately formed in a semiconductor layer 3 supported on a substrate 1 and a memory transistor constituted by laminating a gate insulating film 7, a floating gate FG, a inter-gate insulating film 8, and a control gate CG upon another, is provided on the semiconductor layer 3 between the impurity areas 4 and 5. The threshold voltage of the memory transistor is controlled through injecting the charges generated by an avalanche breakdown into the control gate CG. A low-resistance layer (for example, epitaxially grown layer) 2, having a lower electrical resistivity than the semiconductor layer 3 has, is interposed between the layer 3 and substrate 1.  Since an avalanche yield current flows mainly through the low-resistance layer 2, the potential unevenness in the semiconductor layer 3 is reduced, and the injecting amounts of the change into cells becomes equal to each other.
Patent JP-S58134190-A (JP)
Title: Deashing of coal
Inventor: MUROI KATSUMI
IPC: C10L1/32
Filed: 1982-02-03
Abstract: PURPOSE:To obtain highly deashed coal in high recovery, by adding a binder to a coal-water slurry, stirring the liquid first at high speed and then at a low speed, and exchanging the separated water with fresh water before the completion of the deashing treatment. CONSTITUTION:A hydrocarbon binder 9 is added to a coal-water slurry 8 in the stirring tank 1, and the mixture is stirred with the stirrer 3 first at a high speed and then at a low speed to effect the simultaneous granulation and deashing of coal. Prior to the completion of the deashing of the coal particles, fresh water is supplied to the tank 1 from the fresh water inlet 7 and at the same time, the separated water containing suspending ash is discharged from the tank 1 through the outlet 6 to exchange the separated water with the fresh water. It is preferable in view of the effective utilization of water to remove the ash from the separated water and reusing the water as the fresh water.
Patent JP-H075677-A (JP)
Title: Method for correcting photomask
Inventor: JINBO HIDEYUKI
IPC: G03F1/74
Filed: 1994-02-09
Abstract: PURPOSE:To improve reliability by implanting Ga ions into the shifter remaining defect part of a phase shift mask and irradiating the implanted region with a laser beam, thereby obviating the generation of a fresh defect-according to the removal of the remaining defect. CONSTITUTION:The position and size of the shifter remaining defect part 25 are previously detected by a defect inspecting device in the case of using a blank having a structure consisting of a transprent substrate 21, a conductive film 22, a shift 23 and a Cr film 24. The Ga ion beam is then implanted by the Ga ion beam 26 of an FIB device to the shifter remaining defect part 25 to form a Ga ion region 27. The Ga ion implanted region 27 is then irradiated with the Nd:YAG laser beam at the same area thereof, by which the shifter remaining defect part 25 is removed and the corrected part 29 of the shifter remaining defect is obtd. Namely, the Ga ions are implanted to the shifter remaining defect part 25 to form the implanted region 27 where a light absorptive material exists. This region is irradiated with the laser beam, by which light energy is converted into thermal energy and the shifter remaining defect part 25 is evaporated away.
Patent JP-H02237645-A (JP)
Title: Purifying and recovery method of contaminated catalytic solution on carbonyl reaction of methanol and/or methyl acetate and/or dimethyl ether
Inventor: HAINTSU ERUPENBATSUHA
IPC: C07C51/373
Filed: 1990-01-26
Abstract: PURPOSE: To regenerate a catalyst without the lose of a rhodium complex by removing catalyst contaminants by using liquefied gas consisting of a specific material or gas exceeding the critical point, then separating and recovering a gaseous phase and recycling the gaseous phase. CONSTITUTION: The liquefied gas selected from the specific material, such as carbon dioxide, sulfur hexafluoride or denitrogen monoxide, or the gas exceeding the critical point is used to remove org. impurities as well as acetic acid, acetic anhydride and ethylidene diacetate under pressure of 35 to 450 bar and at 0 to 120 deg.C from the contaminated rhodium complex catalyst soln. The gaseous phase is separated and recovered from the purified liquid and is recycled. The acetic acid, acetic anhydride and ethylidene diacetate are separated from the liquid residue and is recovered and used for the catalyst complex. The org. impurities are taken out as the residue at the time of gaseous phase sepn. The catalyst may be purified without using the costly rhodium by the method described above.
Patent JP-S58133074-A (JP)
Title: Calling current controlling circuit
Inventor: TATSUNO HIDEO
IPC: H04M19/00
Filed: 1982-02-02
Abstract: PURPOSE:To prevent a self-holding type switch from being short-circuited, by providing a circuit, which detects the change of a frame repeating signal, and a circuit which turns off a feeding circuit and the self-holding type switch for a certain time by the output of said circuit. CONSTITUTION:Secondary memories 34-36 are provided between primary memories 31-33 and output buffer memories 40-42, and outputs of primary memories and outputs of secondary memories are compared with each other by a bit comparing circuit 44 to detect the change of the data signal which is received by a calling current controlling circuit. The detection output of the circuit 44 is inputted to counters 47-49 to set memories 40-42 to the clear state only for a certain time. Thus, at a feed current direction switching time, it is sufficient if data transmitted to the calling current controlling circuit is changed directly from a forward feed pattern to a backward feed pattern or from the forward feed pattern to the backward feed pattern, and the soft control is simplified. Even if input data is erroneous, the short-circuit state is prevented in a PNPN switch.