baber/WOPTO huggingface dataset:
Patent JP-S5543565-A (JP)
Title: Electrophotographic copier
Inventor: OOTA SAKAE
IPC: G03B27/62
Filed: 1978-09-22
Abstract: PURPOSE: To prevent temperature rise of the original platen and the surroundings thereof, by blowing air towards the lower side of the original from the operator side of the original platen in the moving sheet original conveying passage, and controlling the flow of air blow in cooperation with the opening and closing operation of the original conveying device.  
     CONSTITUTION: An original platen 10 made of a transparent sheet glass is provided on the upper surface of a copying machine main body 9, and a sheet original conveying device 15 is mounted thereon in a manner swingable around a shaft 16. The device 15 is opened, as shown in the diagram, in the case of sheet mode for conveying sheet original, and is set in open position in the case of book mode. A cooling fan 31 is provided in the copying machine 9, and external air is taken in from an air take-in port 32 and guided to specified positions by means of guide plates 33W35. An opening 33a is formed in the guide plate 33, and an opening 36a in a supporting body 36, and air from the cooling fan 31 is blown towards the running direction of sheet original conveying endless belt 19. A shutter plate 38 opens the opening 33a by pressing a pin 39 when the conveying device 15 is in the sheet mode shown in the diagram, and closes the opening 33a by elasticity in the book mode. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01287339-A (JP)
Title: Extensible structure
Inventor: YAHAGI TOSHIO
IPC: E04B1/34
Filed: 1988-05-16
Abstract: PURPOSE:To obtain a structure with high rigidity by connecting cross beams consisting of rigid arms that are hinged to central members to vertical through members composed of a number of rigid rod members that are hinged and connected each other, and by connecting adjoining cross beam connecting members with tension cables. CONSTITUTION:To at least three vertical through members 3 that are foldable in coil shape, a large number of cross beams 10 are connected in the longitudinal direction of the vertical through members 3 at equal intervals. At each span defined by each of the cross beams 10, adjoining cross beam connecting members 13 are connected with diagonal tension cables 21 arranged in X-shape crossing. Each vertical through member is composed of a number of rigid rod members 3a that are hinged each other, and is made foldable in polygonal coil shape with each connecting part made bendable. Each cross beam 10 consists of a central member 11 and rigid arms 12 that are hinged to the central member 11 at their base ends and stretching radially toward each of the vertical through member 3. When a structure body is extended, the rigid arms 12 are locked to the central member 11 and the cross beam connecting members 13 by an arm-locking device so as not to swing. With such arrangement, a structure that has high rigidity under extended condition can be obtained.
Patent JP-S5641594-A (JP)
Title: Semiconductor memory unit
Inventor: FURUYAMA TOORU
IPC: G11C11/409
Filed: 1979-09-12
Abstract: PURPOSE:To attain high-speed operation by increasing the precharge speed of a bit  line and the solving speed of unbalance by making large the input signal level of a charge transfer type sense circuit by providing the sense circuit with a rewriting circuit. CONSTITUTION:When memory cell MC1 is selected and read, dummy cell DC2 is also selected at the same time. When clock phi1 is held at potential zero, MOSFETs T4 and T5 are ON and OFF in saturated regions. Next, word lines WL1 and DWL2 are held at the high potential and pieces of information in cells MC1 and DC2 are transferred to bit lines BL1 and BL2. Then when phi2 is held at the high potential to turn on T9, sense circuit SA is activated and when T12 and T13 are turned on by row selective signal CL1, signal line I/O is discharged to transfer ''1'' to the output circuit. Next, when phi3 is held at the high potential, line BL1 is charged up to VDD and in cell MC1, potential VDD is rewritten.
Patent JP-H10308035-A (JP)
Title: Optical disk recording/reproducing device
Inventor: HIRATA EIICHI
IPC: G11B7/14
Filed: 1997-05-07
Abstract: PROBLEM TO BE SOLVED: To perform high-speed recording/reproducing with little movement of an optical pickup by arranging a plurality of optical pickups corresponding to an optical disk at required intervals in the full region of a signal recording surface in a disk radial direction. SOLUTION: A plurality of optical pickups 21 are arranged in a pickup circuit board 19 fixed in a main chassis 15 at specified intervals in the radial direction of an optical disk D rotary-driven by a disk rotation driving mechanism 16. Each optical pickup 21 performs recording/reproducing only in the range of moving an objective lens 22 in a tracking direction as a disk radial direction by an objective lens moving mechanism for the optical disk D. On the other hand, the recording surface of the optical disk D is divided into zones, each optical pickup 21 is made corresponsive to each zone and the width of each zone is set nearly equal to the moving range of the objective lens 22 in the tracking direction.
Patent JP-H07320146-A (JP)
Title: Checkout device
Inventor: SANO MASAHITO
IPC: A47F9/04
Filed: 1994-05-30
Abstract: PURPOSE:To provide a checkout device which enables a single person to register the commodities, etc., and also can improve his working efficiency. CONSTITUTION:The checkout device is provided with a belt conveyor 23 which carries the commodities, a start button 31 which starts the operation, a display 33 which displays the jobs, a height measuring device 26 which measures the height of each commodity, an image pickup camera 27 which photographs the commodities, a 1st counter which counts the commodities that are measured by the device 26 and photographed by the camera 27, a bar code scanner 28 which varies the focal distance, etc., and then reads and decodes the bar codes of the passing commodities, a 2nd counter which counts the registered commodities, and a POS terminal 67 which processes the images received from the camera 27 to decide the positions, the sizes, etc., of the commodities, registers the commodities based on the commodity data given from the scanner 28, and decides the end of registration of the commodities after an end button 32 is operated and when the coincidence of count value is confirmed between the 1st and 2nd counters.
Patent JP-H01285228-A (JP)
Title: Automatic bread making machine
Inventor: KAWABE MASARU
IPC: A47J37/00
Filed: 1988-05-13
Abstract: PURPOSE:To surely make various breads the home appliances by providing a control device which proceeds the processes of bread making consisting of the process of mixing, fermenting and baking, and a warning device such as a buzzer which informs a preset time in fermenting process to an operator. CONSTITUTION:When a control device 6 is input the information that an operator starts bread making from a starting device 5, it inputs an output signal of a temperature sensor 4, while detecting the temp. of a vessel 1 and according to its signal, controls a kneading device 2 and a heating device 3 and then proceed the process of bread making which consists of the process of mixing, fermenting and baking. A warning device 7 consists of a buzzer and so on, and informs a preset time in the fermenting process to the operator by inputting the output signal of the control device 6. In this way, since the time to take out dough is accurately informed, the bread making does not result in failure, when the operator, for instance, makes the bread in which beam jam is put.
Patent JP-H05315054-A (JP)
Title: Manufacture of plane-shaped heating element
Inventor: SHIDA MITSURU
IPC: H05B3/20
Filed: 1992-05-11
Abstract: PURPOSE:To facilitate manufacture by dispersing conductors in a solution, composed of resin material for detecting a supporting film, and forming the precursor solution into a film shape, so as to decrease a number of processes as a one-layer structure. CONSTITUTION:In the case of forming a supporting film 2 by polyethylene terephthalate, conductive carbon and dispersing agent as conductors are mixed and stirred respectively by a 20 to 90wt.% range in polyethylene terephthalate solution of mixing phenol with tetrachloroethane, to produce a polymer solution. After this precursor solution is cast in a film shape, the solution is dried to evaporate a surplus solvent, and a plane-shaped heating element 1 is formed. Polyimide or the like can be also used as the supporting film 2. The plane- shaped heating element 1 is formed in a single layer structure of dispersing conductors 4 in the supporting film 2 consisting of predetermined resin.
Patent JP-S5741007-A (JP)
Title: Frequency modulator
Inventor: TAKAHASHI TSUKASA
IPC: H03C3/22
Filed: 1980-08-25
Abstract: PURPOSE:To decrease distortion extending over a wide band, by combining variable capacity diodes having different characteristics, respectively. CONSTITUTION:In general, a variable capacity diode responds to reverse bias voltage from the outside, as an exponential function. That is to say, it has sensitivity to the extent of -1/2 power, -1/3 power and -0.5--5 power to step P-N junction, graded P-N junction and hyperbrupt P-N junction, respectively. Accordingly, when a graded P-N junction diode 4 and a hyperabrupt P-N junction diode 5 are combined and used for an oscillation coil 2, a variable range of the capacity is widened, and also the linearity is improved. In this regard, it is also possible to combine and  use >=3 diodes of different kinds.
Patent JP-H01288005-A (JP)
Title: Piezoelectric vibrator element
Inventor: KAWAURA KUNINORI
IPC: H03B5/32
Filed: 1988-05-13
Abstract: PURPOSE:To make the performance of a voltage controlled oscillator stable by specifying the ratio of the width and the thickness of a paper-tablet piezoelectric substance cut from a lithium tantalate single crystal X board. CONSTITUTION:The ratio of the width W and the thickness H of the paper- tablet piezoelectric substance cut from a lithium tantalate single crystal X board is selected as W/H=3.0-3.2. That is, a spurious radiation generated at a lower frequency region from the oscillated frequency is a lower frequency by nearly 0.5MHz than that a conventional frequency with the piezoelectric substance of W/H=2.8-3.0. Thus, the low frequency side piezoelectric vibrator element is operated without being affected by the spurious radiation of the high frequency side piezoelectric vibrator element in the voltage controlled oscillator employing a couple of piezoelectric vibrator elements whose oscillated frequency is deviated by nearly 1MHz.
Patent JP-S5343140-A (JP)
Title: Fuel supply device of internal combustion engine in which all kinds of fuel can be used
Inventor: ITOU YUKINORI
IPC: F02M13/06
Filed: 1976-09-30
Abstract: PURPOSE: To operate an engine without drop of output power, by connecting first and second fuel rooms for fuel to caburettor through changing valve and fuel supply passage, and supplying 2 sorts of fuel to the carburettor selectively. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H0415233-A (JP)
Title: Etching of polyimide film
Inventor: NAGANAMI TAKESHI
IPC: C08J7/12
Filed: 1990-05-09
Abstract: PURPOSE:To prevent a decrease in an etching speed and to reduce the cost by etching a polyimide film with an etchant comprising an aqueous solution containing an alkali, an amine compound and urea each in a specified concentration. CONSTITUTION:2.2-16wt.% alkali, 14-22wt.% amine compound and 14wt.% or above urea are dissolved in water to obtain an aqueous solution containing these components. This aqueous solution is heated to 50-70 deg.C to obtain an etchant. A polyimide film is etched with this etchant.
Patent JP-S5644405-A (JP)
Title: Device for changing valve timing of diesel engine
Inventor: YAMANO YAICHI
IPC: F01L13/00
Filed: 1979-09-12
Abstract: PURPOSE:To optimize valve timing in an entire running region, by providing between a push rod and a tappet an adjusting mechanism having a valve opening time control piston whose acting time can be changed hydraulically and by appropriately adjusting the control piston. CONSTITUTION:When valve timing set for heavy load as shown in the drawing is changed into that for light load, a rack 20 is moved to rotate a drive piston 11 through a pinion cylinder 19 to oppose the lower end of a valve closing time control edge 13 to a valve closing time control hole 18. At the same time, a control rod 36 is rotated to define a gap between the control rod 36 and the shaft end of a valve opening time control piston 35. When a tappet 3 is pushed up by a timing cam 2 in that state, the drive piston 11 is moved up together to close an escape hole 17 and close the control hole 18 with time lag from the hole 17 to supply oil out of a cylinder 7 to an oil passage 25 through a check valve 24. Valve opening time is thus delayed.
Patent JP-S62273831-A (JP)
Title: Fitting method for mark to mat
Inventor: YAMADA KOHEI
IPC: D06N7/00
Filed: 1986-05-22
Abstract: PURPOSE:To contrive an improvement of operation efficiency and productivity by mounting a mark precisely always on a predetermined position of a mat, by mounting the mark on a mold surrounded by a frame so as to be capable of moving vertically. CONSTITUTION:A mark 12 to which a a backing material 16 is provided its back up on the surface of a mold 17 surrounded by a frame 18 which is movable vertically. Then a mat 11 which is in a state where pile 14 is struck into a base cloth 13 is positioned, with its back up, by the fringe 22 of a holding base 15. Then the mat 11 whose position has been decided is mounted on the top of the frame 18. With this construction, the frame 18 on which the met 11 has been mounted descends through dead load of the mat 11 to present a state where the mat 11 has been mounted on a predetermined position on the mark 12. Then a press plate 21 is lowered to present a state where the mark 12 and mat 11 are put between the mold 17 and press plate 21 by lowering the press plate 21. Then the pile 14 of the mat 11 and the backing material 16 of the mark 12 on the backside of the mark 12 are fused together.
Patent JP-S5242079-A (JP)
Title: Process for producing semiconductor
Inventor: HORIUCHI SHIGEHARU
IPC: H01L21/265
Filed: 1975-09-30
Abstract: PURPOSE:To form a polycrystalline Si layer of a predetermined depth in a predetermined region and use the same as a mask, thereby making a MOSFET of high performance and large scale of integration.
Patent JP-H10307985-A (JP)
Title: Device for detecting walking position and device for guiding passage for pedestrian
Inventor: ASHIHARA ATSUSHI
IPC: G01C22/00
Filed: 1997-05-08
Abstract: PROBLEM TO BE SOLVED: To precisely detect a walking position. SOLUTION: A navigation device 14 that is equipped integrally with a transmitter 5 near the abdomen of a walker 40 is fitted. Both legs of the walker 40 are fitted with receivers 31 and 32. A transmitter 56 and the receivers 31 and 32 are connected to one another with a cable. The transmitter 56 and the receivers 31 and 32 constitute a three-dimensional magnetic sensor and detects positions and moving direction of the receivers 31 and 32 in relation to the transmitter 56, that is, moving distance and moving direction of the legs 41 and 42. Map matching is made in the navigation device 14 and the position of the walker 40 is displayed also on a map. Since the both legs 41 and 42 are attached with the receivers 31 and 32 as relative position sensors, it becomes possible to directly detect actual walking of the walker 40 and to detect the precise position of walking.
Patent JP-H07314109-A (JP)
Title: Device for controlling operation of continuous casting apparatus
Inventor: KOBAYASHI TAKAHIRO
IPC: B22D11/20
Filed: 1994-05-31
Abstract: PURPOSE:To obtain an operation control device for continuous casting apparatus having high reliability and capable of continuous casting. CONSTITUTION:In the continuous casting apparatus for continuously forming a cast slab 5 by continuously introducing molten steel into a mold 4 from a tundish 2 through a sliding nozzle 3, the molten steel surface level is detected with a level detector 9 and the molten steel is introduced to a molten steel level control device 10 based on the level detection signal and the detection signal of a position detector 8. A casting speed detection signal from a pinch roll 6 is introduced to a function generator 13 to obtain a function signal. A waveform signal is obtd. in a waveform generator based on this function signal. The waveform signal and the molten steel level control signal are added to each other in an adder 15 to obtain a sliding nozzle control signal.
Patent JP-H01287565-A (JP)
Title: Method for processing silver halide color photographic sensitive material
Inventor: KUZE SATORU
IPC: G03C7/42
Filed: 1988-05-13
Abstract: PURPOSE:To improve the processing stability of the photosensitive material, and to lessen the generation of a tar, even in case of processing continuously the photosensitive material for a long period by specifying the processing time of a bleach-processing step and by constituting the bleach-processing step of the counter-current system between two or more of adjacent tanks. CONSTITUTION:The processing time of the bleach-processing step is specified to <=90sec, and the bleaching-processing step is constituted of the counter-current system between two or more of the adjacent tanks. pH buffers composed of various kinds of salts such as boric acid, borax, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate and ammonium hydroxide, etc. solely or jointly are incorporated in a bleaching solution. Thus, the rapid processing method of the photosensitive material is established, and the stable processing of the photosensitive material is maintained for the long period, and the efficient application of a processing solution is pursued, whereby the high development quality of the photosensitive material is maintained.
Patent JP-S598695-A (JP)
Title: Crystal growth apparatus
Inventor: HONDA KOUICHIROU
IPC: C30B15/12
Filed: 1982-07-06
Abstract: PURPOSE:To enable the operation of the recharging process suitable for the preparation of a high-quality crystal, by using a rotary crucible for pulling of crystal and having a hole for receiving molten liquid, a crucible for retaining molten liquid, and a crucible for replenishing the raw material and connected with both crucibles. CONSTITUTION:A seed crystal 22 is dipped in the molten silicon 21 heated at about 1,400 deg.C and contained in the rotary crucible 11, and the seed crystal and the rotary crucible are rotated slowly to reverse directions at a rate of several turns per minute. The seed crystal 22 is pulled upward keeping the above conditions to effect the growth of the silicon single crystal 23. On the other hand, polycrystalline silicon 24 is molten in the raw material replenishing crucible 13, and the molten liquid is fed through the connecting tube 14 and the hole 15 to the rotary crucible 11 to keep the constant liquid level. The liquid level can be maintained easily at a definite level by attaching a liquid level sensor to the liquid surface, and performing the melting of the polycrystalline silicon 24 using the signal from the sensor as a guide.
Patent JP-H01288775-A (JP)
Title: Measuring circuit of voltage
Inventor: IKEDA HIROSHI
IPC: G01R19/252
Filed: 1988-05-17
Abstract: PURPOSE:To meet factors of precision, a measuring time and the cost concurrently, by a method wherein potentials in the opposite ends of a voltage source to be measured are impressed on VCOs through adders of phase lock circuits. CONSTITUTION:Potentials in the opposite ends of a voltage source to be measured are impressed on VCOs 8, 9 and 18, 19 through adders 6, 7 and 16, 17 of phase lock circuits, so as to vary output frequencies thereof. Oscillation frequencies of the VCOs 8, 9 and 18, 19 are equal to each other, and 0 (direct- current component) appears in the outputs of multipliers 10, 20, while the products of the outputs of the multipliers 10, 20 and a reference frequency appear in the outputs of multipliers 11, 21. These are subjected to phase comparison with the output of the reference frequency by phase comparators 2, 3 and 12, 13, and each phase lock circuit is locked in a steady state. By taking a difference between the VCOs 8 and 9 or between 18 and 19 on the occasion, a potential difference between the opposite ends of the voltage source to be measured can be read with a frequency.
Patent JP-H11310578-A (JP)
Title: Production of 3-methylfuran
Inventor: MATSUDA HIDEKI
IPC: B01J31/02
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To industrially advantageously obtain 3-methylfuran useful as an intermediate for antiviral agents, etc., by reacting a specific formylcrotyl ester derivative with an alcohol in the presence of an acid catalyst. SOLUTION: (A) A γ-formylcrotyl ester derivative of the formula [R is H, a (substituted)alkyl or the like] is reacted with (C) an alcohol such as 2- butoxyethanol in the presence of (B) an acid catalyst such as p-toluenesulfonic acid, preferably at a temp. of 60 deg.C to the reflux temperature of reaction system, usually under norbal pressure for 30 min to 24 hr to provide the objective compound. The components A and B are preferably each used in amounts of 0.005-0.05 mol and 1-100 mol based on 1 mol component A.
Patent JP-H11311345-A (JP)
Title: Safety valve
Inventor: KAWAGUCHI MAKIO
IPC: F16K17/04
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To simplify the working while securing the air-tightness at the time of operation by arranging a ring-like seal member to be inserted between a valve element and a vale seat so as to secure the air-tightness in a space formed by a ring-like auxiliary member for surrounding the periphery of the valve element and the valve seat with the inner peripheral wall thereof, the valve element and the valve seat without fixing it. SOLUTION: Fastening condition of an adjustment screw 9 is adjusted so as to move a spring receiver 6', and compressing condition of a spring 7 is changed so as to adjust the energizing force. A valve rod 5 is pushed downward by the energizing force of the spring 7 through the spring receiver 6 so that the valve element 4 contacts with an O-ring 2 provided on a valve seat 16 of a main body 1 for seal. The 0-ring 2 is arranged without fixing it in a blow- out part as a space formed by the main body 1, the valve element 4 and a spring body 8 inside of a ring-like auxiliary ring 3 arranged so as to surround a side wall of a part of the valve seat of the main body 1 and the valve element 4. With this structure, reliability, safety and maintenance are improved, and a manufacturing process and a working process of a safety valve can be simplified.
Patent JP-S63284492-A (JP)
Title: Boiling water reactor
Inventor: EGUCHI YUMIKO
IPC: G21C3/30
Filed: 1987-05-18
Abstract: PURPOSE:To maintain specified excess reactivity and to assure the characteristics of a reactor core by maintaining the rate of enriching plutonium in the uranium plutonium fuel rods disposed in a 1st fuel assembly at the rate smaller than the rate of the 2nd fuel assembly. CONSTITUTION:The reactor core 15 is constituted as, for example, a replacement core with which about 1/3 fuel is to be replaced. The blank parts in the figure of this case indicate the positions of the fuel assemblies 13 and fuel assemblies 14 which are burned by >=1 cycle. The parts 1 indicate the positions of the fuel assemblies 13 among the fresh fuel assemblies and the parts 2 indicate the positions of the fuel assemblies 14 among the fresh fuel assemblies. The fuel assembly 13 includes 22 pieces of MOX fuel rods (codes P1, P2) and the rate of enriching the plutonium of P1, P2 are respectively set at 5.0wt.% and 3.0wt.%. Designing of such core which minimizes the burnup change of the excess reactivity by changing the number of the fuel assemblies 13 and the fuel assemblies 14 is enabled when the compsn. of the plutonium and the operation period are determined.