baber/WOPTO huggingface dataset:
Patent JP-H07309613-A (JP)
Title: Superconducting material and method for synthesizing the same
Inventor: HIROZAWA ICHIRO
IPC: C01B31/00
Filed: 1994-05-17
Abstract: PURPOSE:To obtain a superconductor having a higher lattice constant and a high superconductivity transition temp. CONSTITUTION:Ammonia vapor is sealed in a glass tube contg. Na2CsC60 under 1atm pressure and the tube is kept at 0-50 deg.C. Ammonia molecules react with cesium positioned between octahedral lattices of the crystal to give {Cs(NH3)4}<+> and Na2Cs(NH3)4C60 is formed. When the lattice constant is measured by X-ray diffraction, it is increased from 14.130Angstrom  of Na2CsC60 to 14.530Angstrom  almost equal to the lattice constant of Cs2RbC60. The superconductivity transition temp. of the resultant material is 92K which is about 3 times as high as that of RbCs2 C60. having the almost same lattice constant.
Patent JP-H10294318-A (JP)
Title: Electronic part
Inventor: TOGASAKI TAKASHI
IPC: H01L21/60
Filed: 1997-04-18
Abstract: PROBLEM TO BE SOLVED: To obtain an electronic part in which electric short circuit is prevented even in the case of fine pattern connection pitch by an arrangement wherein a metal layer for preventing diffusion of solder comprises a solder bump electrode, a wet region and an unwet region and the central part for at least an opening region comprises a solder bump electrode and a wet region. SOLUTION: An electrode pad 13 is provided on an electronic part 11 comprising a silicon semiconductor and an insulating protective film 12 of silicon nitride is deposited thereon. A first metal layer 14 of titanium for preventing diffusion of solder is formed along the surface of the electrode pad 13 at an opening 18 and the insulating protective film 12 while covering them perfectly and a second metal layer 15 of nickel for preventing diffusion of solder is formed thereon. A solder bump electrode 17 is formed on the second metal layer 15 for preventing diffusion of solder. Since titanium is not wetted but nickel is wetted with molten solder, the solder bump electrode is formed only on the second metal layer for preventing diffusion of solder.
Patent JP-H01273267-A (JP)
Title: Audio signal reproducing device for video tape recorder
Inventor: TSUJIMOTO MASATOSHI
IPC: G11B20/00
Filed: 1988-04-25
Abstract: PURPOSE:To always listen to a sound with an excellent sound quality from a video tape without any troublesome operation when PCM audio signals are recorded on the video tape by automatically selecting the signal to be outputted by an audio signal reproducing means corresponding to the record system of the audio signals. CONSTITUTION:When PCM audio signals are recorded on a video tape 12, the signals are read by means of a magnetic head 42 for PCM audio signal and demodulated by performing de-interleave, error correction, and error compensation at a demodulator circuit 44 for PCM audio signal. The demodulated digital signals are supplied to the contact 52b of a changeover switch 52 through an A/D converter 45 and LPF 46 and reproduced from a sound output circuit 53 through the contact 52c of the switch 52. Since the frequency of error compensation performed at the circuit 44 is small and the number of compensation flags never exceeds a prescribed number when the audio signals are demodulated, excellent sounds can be outputted from the circuit 53. When no PCM audio signal is recorded on the tape 12, on the other hand, the circuit 44 cannot make normal demodulation and continuously performs error correction.
Patent JP-H08297127-A (JP)
Title: Automatic analyzer with waste liquid disposal function
Inventor: FUJITA HIROKO
IPC: G01N35/10
Filed: 1995-04-26
Abstract: PURPOSE: To drain the waste water with no drainage control problem without installing a special neutralization tank or a disinfection/sterilization tank by automatically conducting the disinfection process and sterilization process in the middle of a passage of a reactant liquid and a cleaning liquid. CONSTITUTION: The raw water 54 stored in a waste raw water tank 53 is fed to a sterilization tank 65 by a pump 55. Sodium hypochlorite is injected into the sterilization tank 65 from a chemical tank 66 by a pump 67 via the control from a micro-computer. When the raw water 54 is stirred by a stirring machine 68 for 20min, disinfection and sterilization is completed, and the raw water 54 is fed to a neutralization tank 56 by a pump 69. The raw water 54 is invariably stirred by a stirring machine 57 in the neutralization tank 56, and its pH is measured by a pH indicating/adjusting meter 58. Acid or alkali is injected by pumps 61, 62 via the signal from the micro-computer. When the prescribed pH value is kept for a prescribed period, it is judged that neutralization is completed, and the waste water overflows and is discharged from an automatic analyzer through a discharge port 63.  The discharged waste water has been sterilized and neutralized, and no further process is required.
Patent JP-H02280898-A (JP)
Title: Method and apparatus for melting pretreatment of sludge
Inventor: SAWAI MASAKAZU
IPC: C02F11/12
Filed: 1989-04-21
Abstract: PURPOSE:To make disintegration and drying efficient and to increase a melting speed by drying the disintegrated matter of the dehydrated cake of sludge to classify the dried matter into a powdery dried fraction and a granular dried fraction by a classifier and supplying the powdery dried fraction to a melting furnace. CONSTITUTION:A dehydrated sludge cake having moisture content of 60% is supplied to a mixer 1 to be mixed with a granular dried fraction and the resulting mixture with moisture content of about 30% is introduced into a disintegrator 2. The disintegrated sludge is raised along with an air stream of about 400 deg.C through an air stream dryer 3 to be dried and separated into exhaust gas and dried matter by a drying cyclone 4. The dried matter is thrown in a sieve type classifier 5 to be classified into a powdery dried fraction having a particle size of below 3mm and the granular dried fraction having a particle size of 3mm or more. The granular dried fraction is supplied to the disintegrator 2 through a hopper 12 and a drawing-out port 7 and the powdery dried fraction having a small particle size is supplied to a revolving stream type melting furnace 10 and melted at about 1400 deg.C to be discharged as molten slag.
Patent JP-H08296933-A (JP)
Title: Automatic ice-making equipment
Inventor: HATANAKA HIDEJI
IPC: F25C1/22
Filed: 1995-04-26
Abstract: PURPOSE: To prevent ice-making from being carried out in a state wherein water in a large quantity exceeding a normal quantity is stored in an ice-making tray. CONSTITUTION: Water from a water supply device is injected into a recessed part 53c of an ice-making tray 13. The water injected into the recessed part 53c flows into a recessed part 53d from the recessed part 53c through recessed parts 53a and 53b, since grooves 54a to 54c are deeper than grooves 54d to 54h. Accordingly, the water is collected in the recessed parts 53c and 53d located on the opposite sides of a temperature detecting part 55 even when the quantity of water supplied from the water supply device is small. Therefore a temperature sensor of the temperature detecting part 55 detects the same temperature as in the case when water in a normal quantity is present, an ice-making operation is continued without being interrupted and ice thus made is dropped from the ice-making tray 13 when the ice-making is completed.  Even when the water in the normal quantity is supplied at the time of the next water supply, accordingly, there is no possibility that the water in a large quantity is collected in the ice-making tray 13.
Patent JP-H074358-A (JP)
Title: Valve-plate in which valve gear is disposed
Inventor: SHIYOON EI RIYUU
IPC: F04B39/10
Filed: 1993-04-05
Abstract: PURPOSE: To restrict a flapper valve from bending excessively in the flapper valve device for a gas intake port and a gas outlet port for a compressor. CONSTITUTION: A pedestal for a gas intake port 20 and gas outlet port valve 18 is prepared on a valve plate 16, and a flapper valve and its stopper device is fitted therein. Then, the pedestal has a guide in which notches of the flapper valve and the stopper device are fitted so that anyone can assemble it. The head of a fixing screw is prevented from projecting from the valve plate 16 so that no clearance is required in the upper part of the piston 36.
Patent JP-S5626515-A (JP)
Title: Filter
Inventor: TOSHIFUJI NAOTAKE
IPC: B01D25/12
Filed: 1979-08-09
Abstract: PURPOSE: To prevent each interface from deposition of solid component of sludge to be treated by sliding the interfaces of each filter element.  
     CONSTITUTION: When a drive lever 9 is reciprocated by a drive unit in a specified stroke, each beam 5aW5d and 6aW6d reciprocates, with each connection shaft 7aW 7d as support points, so that plural plate-type filter elements 1 supported with fixed plates 3, 4 are slided each other at their interfaces (m), (n). When the interfaces are about to be deposited with penetrating filter sludge, or solid component of  sludge to be treated and supplied to the part of top face A and bottom face B of the  filter element 1, the sliding of each interface (m), (n) scrapes off the deposited  filter sludge As a result, the process efficiency of the filter elements 1 is not reduced. Water in the sludge passes through the narrow gaps between each interface  (m), (n), flows into a drain passage 10 and is discharged to the outside. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S6236556-A (JP)
Title: Image display unit for ultrasonic microscope
Inventor: KARAKI KOICHI
IPC: G01N29/06
Filed: 1985-05-14
Abstract: PURPOSE:To enable the observation of various views, positions and depths, by providing means of switching and displaying internal information of a sample by more than one image display means in the order of scanning and a means of coloring three adjacent pieces of internal information corresponding to three primary color signals. CONSTITUTION:An ultrasonic microscope body 33 lends out a signal obtained with an acoustic lens 22 to an interface circuit 35 through an A/D converter 36 to be transferred to a scan converter 40 with a CPU 31. The scan converter 40 converts a microscope image written into memories 37-39 into a signal displayable with CRTs 41-43. Images based on memories 37-39 provide a planar section image of a sample obtained by a Z-way scanning or varied images on the same plane in a switchover display, and furthermore they can be updated in the order of display each time scanning ends per screen. While CRTs 41-43 are for black/white images, the CPU 31 enables the displaying of a pseudo color image on the main CRT 44 by reconstructing image data from the memories 37-39.
Patent JP-S5435777-A (JP)
Title: Alarm watch
Inventor: KURITA HIROTOMI
IPC: G04C21/02
Filed: 1977-08-25
Abstract: PURPOSE: To perform time setting of alarm while observing the current time by so disposing time display member and buzzer that they partly superpose in plane. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H11291087-A (JP)
Title: Manufacture of tin-bismuth solder alloy powder
Inventor: ABE ISAO
IPC: B22F9/22
Filed: 1998-04-14
Abstract: PROBLEM TO BE SOLVED: To provide a tin-bismuth solder alloy powder having the grain size of <=20 μm at a low cost in a method for manufacturing the alloy powder for lead-free soldering material. SOLUTION: In a manufacturing method of a tin-bismuth solder alloy powder, alkaline earth oxide, carbonate, hydroxide, tin salt, and bismuth salt are mixed, the mixture is reduced and roasted in the air flow containing hydrogen at the temperature of >=400 deg.C to <=800 deg.C, and after the roasting, the alkaline earth salt is dissolved to remove with the acid. The mixing ratio by weight of the alkaline earth salt to the tin-bismuth alloy powder to be generated after the roasting is >=0.2 time to <=3 time.
Patent JP-H04932-A (JP)
Title: Wavelength multiplexing optical communication network and optical transmitter receiver using same
Inventor: UCHIDA MAMORU
IPC: H04J14/02
Filed: 1990-04-18
Abstract: PURPOSE:To inexpensively increase the degree of wavelength multiplexity and to remove restrictions on the number of terminal stations while enhancing the reliability by always transmitting light having plural wavelengths from a reference station to plural terminal stations through an optical transmission line. CONSTITUTION:Light having plural wavelengths is always transmitted from a reference station 2 to plural terminal stations 3 to 6 through an optical fiber transmission line 1. Since a light emission source is the reference station 2, the temperature is controlled only in the reference station fundamentally, and a wavelength multiplexing optical communication network is constituted very inexpensively. The input level of an optical amplifier 38 of an optical transmission/reception equipment is equalized among respective channels. Consequently, all the wavelengths of light are amplified with a certain gain to easily adjust the level, and the system is very simplified and restrictions on the number of terminal stations 3 to 6 are removed. Further, the reliability is enhanced and the degree of optical multiplexity is increased. Since the terminal stations is provided with all functions of a passive type terminal station when viewed from a user of an ordinary terminal station, the normal communication system can be applied almost as it is and the system design is facilitated.
Patent JP-S584965-A (JP)
Title: Manufacture of semiconductor element
Inventor: HISATOMI KIYOSHI
IPC: H01L27/06
Filed: 1981-07-01
Abstract: PURPOSE:To prevent the pattern shift of an alignment mark by growing poly Si only to the alignment mark section and utilizing a fact that the speed of growth has no directional dependency. CONSTITUTION:Openings 16 (the alignment mark), 22 are bored to SiO2 21 on P type Si 11, N<+> buried layers 12-1, 12-2 are formed and the surfaces are coated with SiO2 21. A resist mask 51 is shaped selectively onto the SiO2 21 of the mark 16 and the SiO2 is removed through etching, and the resist mask is taken off. SiH4 And a P compound are decomposed and reacted at a high temperature, and an N type gaseous-phase growing layer 13 is formed while poly Si 52 is shaped onto the SiO2 film 21 of the mark 16. The SiO2 21 may be replaced with Si3N4. According to this constitution, the pattern shift of the alignment mark used as the reference position of the formation of a pattern can be prevented in a gaseous-phase growing layer forming process. Consequently, an IC having the high degree of integration is obtained with high accuracy.
Patent JP-S59226659-A (JP)
Title: Switching regulator
Inventor: KONDOU SHIGERU
IPC: H02M3/338
Filed: 1983-06-07
Abstract: PURPOSE:To enable to always produce a stable output from a switching regulator by applying a current for compensating the abrupt variation of an input voltage to a swtiching transistor. CONSTITUTION:A current compensator 31 for compensating the base current of a transistor to the abrupt variation of the input voltage is provided between the base of a transistor 6 and the cathode of a diode 8 of an output side circuit formed at the secondary winding 2B of a transformer 2. When a voltage is generated at the tertiary winding 2C of the transformer 2 on the basis of the DC input applied to input terminals 4A, 4B, a switching transistor 32 becomes conductive in response to the voltage, and the emitter current in response to the voltage is flowed from the cathode of the diode 8 of the output side circuit to the base of the transistor 6.
Patent JP-H044787-A (JP)
Title: Speed controller for moving body
Inventor: KATAYAMA HIROSHI
IPC: H02P6/15
Filed: 1990-04-18
Abstract: PURPOSE:To shorten processing time by providing speed error detecting means, step function generating means, fluctuation component detecting means and correction signal forming means, and outputting a current or voltage command. CONSTITUTION:A speed detection circuit 6 outputs a speed signal Nf based on a pulse obtained from a speed detector 5. The signal Nf is fetched to a microcomputer 9, which calculates a speed error signal Ne from a difference between a speed command signal Ns from a ROM in the microcomputer 9 and the signal Nf from the circuit 6 by speed comparing means 51, and forms a speed error correction signal Ic bead on the signal Ne in a section indicated by a broken line. The signal Ne is multiplied by K times by proportional control means 53, added to a speed error correction signal Ic by command signal forming means 52, and a current command Is is outputted. A driver 1 outputs a current for generating a necessary torque based on the command.
Patent JP-H01274410-A (JP)
Title: Ignition coil for internal combustion engine
Inventor: YOSHIDA HIROTOKU
IPC: H01F38/12
Filed: 1988-04-27
Abstract: PURPOSE:To prevent lowering of between-coils electrostatic capacity so as to rationalize insulation structure by determining the number of windings of each dividing groove according to the potential distribution at the time of coil excitation of a mold ignition coil. CONSTITUTION:A secondary bobbin 30 is divided into respective secondary coils 41 to 45 such that the coil widths are W1 to W5 and the coil heights are D1 to D5 from the winding end. Divided coils are separated from each other with a partition 61 of T1 in thickness and insulated. To determine the number of turns of windings for each groove, if numbered from the winding end to the winding start, a row a1 of coils in the first groove at the winding end is so calculated that the potential difference between No.1 (x=0, potential 100%) and No.2a1 (x=2a1-1) may be below the dielectric strength between the steps of the windings. The partition dimension T1 between grooves relates to the number N1 of turns of windings for the windings end and the number a1 of coil rows. The N1 is determined so that the potential difference between coils of No.a1 (x=a1-1)th and No.N1+1 (x=N1)th may be below the insulation strength of the partition T1. The number of windings is decided similarly for the following from the winding end in the order of 1st, 2nd, 3rd groove....
Patent JP-S5627148-A (JP)
Title: Reproduction proof paper for preparing master
Inventor: TSURUMAKI YOUICHI
IPC: G03F1/90
Filed: 1979-08-11
Abstract: PURPOSE: To obtain reproduction proof paper for use in a master having proper rigidity, superior ink receptivity, setting performance, and smoothness, by providing on transparent paper a layer containing a single or mixed inorganic or organic pigment having a transparency not less than a specified value.  
     CONSTITUTION: A single or mixed inorganic pigment, such as clay or TiO 2 , or an organic pigment, such as a urea resin pigment, is mixed with a binder, such as casein or synthetic rubber latex to form a pigment coating fluid, and this is coated on high transparency paper, such as tracing paper or glassine paper, having a transparency paper, such as tracing paper or glassine paper, having a transparency ≥50% obtained by the following equation: tranesparency (%)=100-(opacity), from an opacity value measured by JIS-P8138 (Japanese Industrial Standards), and it is dried. When necessary, the pigment coating fluid may be coated on an undercoat formed by coating a vinyl or acrylic type, or the like resin solution in order to raise adhesion, thus permitting formation of reproduction proof paper having uniform transparency and proper rigidity, and superior printing characteristics. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5728692-A (JP)
Title: Manufacture of forgewelded pipe
Inventor: SAKAGUCHI KAZUTOSHI
IPC: B23K20/00
Filed: 1980-07-25
Abstract: PURPOSE: To eliminate the need to use a sizer for the manufacture of a forgewelded pipe by correcting the rate of crushing to a specific value after decreasing the  percent reduction of a diameter and ellipticity below specific values respectively at the last two stands of a forgewelding machine.  
     CONSTITUTION: A skelp S is conducted from an uncoiler 1 to a heating furnace 2, where it is heated up to about 1,350°C to be introduced into a forewelding machine 3. At the forewelding machine 3, it is finished to a nearly desired external diameter by the formation roll 31 of the 1st stand # 1 , the forgewelding roll of the 2nd stand # 2 , and reducer rolls 33 of the 3rdW12th stands # 3 W# 12 . At the last two stands # 11  and # 12 , the percent reduction of the diameter is ≤1.5% and the ellipticity is ≤2%. Then, the pipe is cut by a rotary hot saw 4 into pipes P 1  having specified length, which are transported, as they are, to a cooling table 6. Then, they are cooled to prescribed temperature and then corrected to a 1W5% crushing rate by  upper and lower hourglass-shaped rolls 71 of a correcting machine 7. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5627151-A (JP)
Title: Production of physical developing nuclei for lithographic printing material
Inventor: KOISHI MASABUMI
IPC: G03F7/07
Filed: 1979-08-13
Abstract: PURPOSE:To prevent coagulating and coarsening of developing nuclei and increase print resisting power by mixing the physical developing nuclei with polyvinyl alcohol of the specific rate of saponification before their grain sizes reach the specific value in producing the physical developing nuclei for lithographic printing material adapted for a silver complex salt diffusion transfer process. CONSTITUTION:In producing physical developing developing nuclei for lithographic printing material utilizing transfer silver by a silver complex salt diffusion transfer process as ink receptivity, the coating soln. is prepd. by mixing an aqueous soln. of metal salts such as palladium chloride and an aqueous soln. of sodium thiosulfate under stirring for a short time at around 20-70 deg.C, adding an aqueous soln. of polyvinyl alcohol of 80-95% in rate of saponification into the mixed soln. before the particle sizes of the physical development produced owing to reduction of the above-described metals reach about 50Angstrom  and adding a suitable amount of water after mixing these. Necessary developing agents, silver halide solvent, hardeners, etc. are added to this coating soln. and the thus prepd. soln. is used for forming image receiving layers. In this way, superior printing resistance property is obtained without causing coagulation and sedimentation of the physical developing nuclei.
Patent JP-H09288067-A (JP)
Title: Method and apparatus for inspecting interior of drum can
Inventor: NAKANISHI ISAO
IPC: G01N21/94
Filed: 1996-04-24
Abstract: PROBLEM TO BE SOLVED: To reduce the load of an inspector by automating the inspection of the interior of a drum can while shortening an inspection time to a large extent and to facilitate the recording control of an inspection result. SOLUTION: A support lever 26 having a light and a plurality of CCD cameras 29, 30 arranged thereto is mounted on a support 24 arranged in close vicinity to the feed line of a drum can 1 in a freely liftable manner, and the CCD cameras 29, 30 of the support lever 26 are inserted into the drum can 1 to photograph the photographing allotment regions of the drum can at predetermined positions in a vertical direction. The photographed images are once stored in a memory and, subsequently, the images are replayed from this memory to a monitor 36. The replayed stationary images are visually observed to discriminate the flaws of the respective photographing allotment regions or, at the same time, image signals are selected to be stored in a separate recording medium to enable quality evaluation thereafter.