baber/WOPTO huggingface dataset:
Patent JP-H04249912-A (JP)
Title: Waveform equalization circuit
Inventor: UTSUNOMIYA MASAAKI
IPC: H03H15/00
Filed: 1991-05-31
Abstract: PURPOSE:To improve an error rate by performing waveform equalization using not only an identification signal but information at an intermediate point when a reproducing signal is identified and is converted to digital data. CONSTITUTION:Sample and hold(SH) circuits 5-8 are cascade-connected to an SH circuit 4, and SH circuits 10-12 are cascade-connected to an SH circuit 9. An equalization waveform can be generated by applying amplitude adjustment to the output of the SH circuits 4, 6, 8, 10, and 12 operated by a reproducing clock (a) at coefficient circuits 13-17 by multiplying by coefficient values(K1-K5) and mixing them by an adder 18. Therefore, it is possible to fetch not only the reproducing signal at an identification point but the information at the intermediate point between the identification points. Furthermore, an equalized waveform is converted to digital level data at an identification circuit 19.
Patent JP-S5558328-A (JP)
Title: Production of cold rolled steel plate and surface treated type steel plate
Inventor: TOKUNAGA YOSHIKUNI
IPC: C21D9/52
Filed: 1978-10-24
Abstract: PURPOSE: To reduce deposition of sulfides and produce the mild steel plate suited for press working without hampering the growth of crystal grains by subjecting the aluminum killed steel added with rare earth elements (REM) to short-time continuous annealing at a relatively low temperature.  
     CONSTITUTION: The aluminum killed steel containing C; 0.02W0.06%, Mn; <0.4%, S; 0.003W0.018%, Al, 0.02W0.20%, 0.7<REM/S<5 is treated like this:  This aluminum killed steel undergoes coiling after hot rolling at 550W 720°C and  this is pickled and cold rolled and is thence subjected to continuous annealing at  temperatures of 600W900°C. Here, there is a tendency for degradation of deposition  of AlN owing to the low temperature coiling of the hot rolled coil, and therefore if  the deposition of BN is achieved by adding B; 0.001W0.006% in order to eliminate  the problem of aging by N, the mild steel plate is obtained further stably.  
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5919908-A (JP)
Title: Optical temperature sensor
Inventor: IZUTSU MASAYUKI
IPC: G01K11/12
Filed: 1982-07-26
Abstract: PURPOSE:To obtain a temp. sensor which permits temp. measurement with high accuracy and has simple constitution by detecting temp. from the intensity of the light which is propagated in a pair of single mode optical waveguides for detecting temp. and emitted from single mode optical waveguide for inputting and outputting. CONSTITUTION:The light which is made incident to a sensor from an optical waveguide 13 is propagated equally dividedly to optical waveguides 1, 2 having mutually different lengths and after said light is reflected by a reflection film 8, the light is again propagated in optical waveguides 11, 12 and arrives at a coupling part 5. If the light waves of both waveguides 11, 12 are of the same phase, both light waves are fully transferred to an optical waveguide 3 and output light is obtd. from the waveguide 13. If there is a phase different in the light waves propagating in the waveguides 11, 12, the light of the intensity corresponding to the phase difference is emitted from a waveguide 14. Since the phase difference of the light waves propagating in a pair of waveguides 11, 12 for detecting temp. changes with temp., the temp. is known from the intensity of the output light thereof. The temp. measurement with high accuracy is thus made possible, and the optical temp. sensor having the simple constitution is thus obtd.
Patent JP-S5832099-A (JP)
Title: Preparation of single crystal
Inventor: NAKAJIMA KOU
IPC: C30B15/10
Filed: 1981-08-21
Abstract: PURPOSE:When a single crystal of Gd, Ga or garnet is formed using an iridium crucible by the Chokralsky method, a trap of iridium is inserted into the starting material melted in the crucible to prevent the single crystal from being contaminated by iridium. CONSTITUTION:One of high-purity Gd, Ga, garnet or the like 8 is placed in an iridium crucible 1, melted by heating with coils 4, then a seed single crystal is dipped into the melt and the short holder 8 for the seed crystal 7 is gradually pulled up as it is being rotated to effect the growth of the single crystal 9. At this time, an iridium trap of mesh, ball or rod is dipped in the melt 8 to capture the iridium dissolving out of the crucible into the melt 8 and prevent the single crystal 9 from being contaminated with iridium, thus the purity of the single crystal is kept extremely high.
Patent JP-S5254828-A (JP)
Title: Improvement of piston crank system actuator
Inventor: SUZUMURA TOSHIAKI
IPC: F02F3/00
Filed: 1975-10-29
Abstract: PURPOSE:A cylinder is tilted by a predetermined angle to a face perpendicular to a crank shaft, concurrently the connection between a camrod and piston is specified, in the reciprocal movement of a piston, a part of the piston is permitted to make a slidable engagement with the inner face of the cylinder at all times to prevent slap noise of the piston.
Patent JP-H01299682-A (JP)
Title: Method for removing dust from web
Inventor: CHINO NAOYOSHI
IPC: G11B23/50
Filed: 1988-05-30
Abstract: PURPOSE:To remove the deposit on the surface of a web without scratching the surface of the long-sized web by approaching a blowoff nozzle extending in the cross direction of the web and having an edge at its tip to the one side of the traveling web. CONSTITUTION:The blowoff nozzle 1 is opposed to the surface of the web to be dedusted laid over plural guide rollers 4. A slit 3 extending in the cross direction of the web 2 is provided to the nozzle 1, and an edge 6 is formed at its tip. A chamber 9 is furnished at the lower part of the slit 3, and allowed to communicate with a suction blower 5. Compressed air is blown off from the slit 3. A thin air film is formed between the web 2 and the edge 6 by the compressed air from the slit 3, and the web 2 is levitated and conveyed. Consequently, the deposit on the surface of the web 2 is brought into direct contact with the edge 6 and removed, and the web is not scratched by the edge 6.
Patent JP-S5922010-A (JP)
Title: Method and device for automatic focus adjustment
Inventor: MURAKAMI OSAMU
IPC: G02B7/09
Filed: 1982-07-28
Abstract: PURPOSE:To make a focus adjustment by arranging a parallel plane plate made of electromagnetic optical material in an optical image formation system, and applying an electric or magnetic field and varying the refractive index. CONSTITUTION:The parallel plane plate 10 made of the electrooptic material is arranged on the optical path of the optical image formation system including a lens 1, and transparent electrodes 11A and 11B are stuck to both surfaces 10A and 10B of the plate. An ultrasonic wave is emitted from the transmitter and receiver 21 of a distance measurement part 20 to an object A and its reflected wave is received to find the distance by a measuring circuit 22. A control part 13 generates a voltage corresponding to the distance at a power source 12 and the voltage is applied to the transparent electrodes 11A and 11B to vary the refractive index of the parallel plane plate 10, making the automatic focus adjustment without moving the optical system.
Patent JP-H10296403-A (JP)
Title: Method for controlling strip thickness in twin-roll caster
Inventor: FURUKAWA MASAZO
IPC: B22D11/06
Filed: 1997-05-01
Abstract: PROBLEM TO BE SOLVED: To always fix the strip thickness in a twin-roll caster. SOLUTION: In the side direction drawing type twin roll caster for producing the strip 5 by arranging one pair of mold rolls 2, 3 at the upper and the lower sides in the downstream of a tapping hole of a tundish 1 and supplying molten steel 4 from this tapping hole into the mold rolls 2, 3, the mold roll 2 at the upper side is supported, with a swing frame tiltable by centering the mold roll shaft at the lower side. In the case the thickness of the strip 5 becomes thinner than a prescribed thickness, the mold roll 2 at the upper side is tilted to the tundish 1 side and the contacting length of the solidified shell 8 of' the outer periphery of the roll 2 is made to large so as to make to coincide with the solidified shell 9 of the mold roll 3 at the lower side and the thickness of the strip 5 is made to constant.
Patent JP-H10305951-A (JP)
Title: Web material winding device
Inventor: YAMAMOTO HIROYUKI
IPC: B65H19/28
Filed: 1997-05-02
Abstract: PROBLEM TO BE SOLVED: To automatically wind a web material even when it is soft and flexible by moving a wrapper roller around a winding core or along the outer circumferential surface of a winding shaft in a condition where the web material is pressed against the winding core or the winding shaft. SOLUTION: A plurality of winding cores 4 are fed to the winding position 3, and arranged in a concentric manner, and the slit web material 1 is wound therearound, and individually wound. A lever 5 is supported by a frame 6, and a press roller 2 is provided on the tip of the lever 5. In addition, a cylinder 7 is fitted to a frame 6, and connected to the lever 5, and the lever 5 can be oscillated by the cylinder 7. When the web material 1 is wound around the winding core 4, the cylinder 7 is applied to the lever 5 and the press roller 2, the press roller 2 is brought into contact with the web material 1 on the winding core 4, the contact pressure is generated between the two, and the web material 1 can be correctly wound.
Patent JP-H04329230-A (JP)
Title: Crt picture screen request panel
Inventor: YUGAMI KUNIO
IPC: G06F3/048
Filed: 1991-05-02
Abstract: PURPOSE:To simplify the requesting operation when, in case of CRT picture screen request, the picture screen once requested is thereafter repeatedly requested at any given time frequency. CONSTITUTION:A key 21 for causing a picture screen data in the CRT display to be stored and a key 22 enabling the stored picture image to be requested are additionally provided on a conventional CRT picture screen request panel.
Patent JP-H0270298-A (JP)
Title: Driving circuit of stepping motor
Inventor: SHIMURA KIICHIRO
IPC: H02P8/00
Filed: 1988-05-30
Abstract: PURPOSE:To cut down the power consumption by a method wherein the frequency is divided into high and low values to open and close a power supply at low frequency when the excitation winding of a stepping motor is excited at high frequency while the power supply is opened and closed at high frequency when the excitation winding is excited at low frequency. CONSTITUTION:The output (a) from a reference voltage oscillating circuit 29 is frequency-divided to generate rectangular waves in frequency of b>c>d for selecting high frequency numbers in the inverse order by interlocking switches 31A, 31B. A wave form taking circuit 33 outputs signals e, f and g, h in inverse phases with one another to open and close transistors 38-41 for making a motor 28 step using excitation coils 28A, 28B. A switch 31A selects the frequency in the inverse high low frequency to that of another switch 31B to open and close Trs 24, 22 for feeding power to the excitation coils 28A, 28B through the intermediary of a reactor 25. When the motor 28 is driven at high speed, the transistors 24, 25 are opened and closed at low speed to reduce the voltage decline in the reactor 25 for lowering the excitation voltage while when the motor 28 is driven at low speed, the excitation voltage is also lowered. Through these procedures, the power consumption can be cut down.
Patent JP-H09317902-A (JP)
Title: Butterfly valve
Inventor: KITAMURA MASAAKI
IPC: F16K1/226
Filed: 1996-05-27
Abstract: PROBLEM TO BE SOLVED: To raise sealing property through a simplified construction. SOLUTION: A valve body 2 is rotatably arranged inside a valve casing 1 through a valve bar 3 and a peripheral sheet 14 adjoining the outer periphery of the valve body 2 and a hub seal 15 fitted to the valve bar 3 from the outside are provided on the interior of the valve casing 1, while the peripheral sheet 14 and the hub seal 15 are integrally formed and a bulking agent 19 is filled in 8 recessed groove 14b formed on the outer circumference of the peripheral sheet 14 along the longitudinal direction of the peripheral sheet 14.
Patent JP-H11320456-A (JP)
Title: Seal mechanism for motor-driven tool
Inventor: ONO MASAHIKO
IPC: B25F5/00
Filed: 1998-05-13
Abstract: PROBLEM TO BE SOLVED: To effectively prevent entrance of dust to the internal part of a body housing. SOLUTION: In this seal mechanism, a packing 18 made of rubber is contained in the whole periphery of a joint part between a gear housing 3 to form a body housing 2 and a gear housing cover 4 and the joint is sealed. A V-shaped valve element 19 is extended to the packing 18 and a protrusion 20 on the tip end thereof makes contact with an air hole with the protrusion closing an air hole 21 to intercommunicate the front and the rear of a partition wall 3a. Meanwhile, a seal retainer 22 and a dust seal are arranged at the through-hole of the slider 12 of a gear housing cover 4 to perform lubrication and seal of the through-part of the slider 12.
Patent JP-H0623594-A (JP)
Title: Empty can processing device
Inventor: TAKEI YUJI
IPC: B30B9/32
Filed: 1992-05-22
Abstract: PURPOSE:To provide an empty can processing device that an empty can be reasonably compressed and deformed, the miniaturizing and the light weight making can be realized and can be composed at low cost. CONSTITUTION:An empty can 100 is held between a pair of rotary press plates 15a, 15b pivotally attached with spindles 17a, 17b to flange parts 14a, 14b bent with a fixed press plate 14 and the both ends, and a pair of rotary press plates 15a, 15b are brought in contact with both ends 100a, 100b of the empty can 100. Then, an press mechanism 10 provided an empty can processing device is composed in a such manner that a slide press plate 16 is operated to each rotary press 15a, 15b, the lever force making the pivotally attaching part as a fulcrum is applied to both ends 100a, 100b of the empty can 100 and the empty can is compressed and deformed.
Patent JP-S63293910-A (JP)
Title: Ceramic capacitor and manufacture thereof
Inventor: EDA KAZUO
IPC: H01G4/12
Filed: 1987-05-27
Abstract: PURPOSE:To enhance a Q value in a high frequency over a wide temperature range and to realize a small-sized and large-capacity capacitor by installing at least more than one layer of a structure where a perovskite structure oxide sintered substance dielectric which can be sintered at a prescribed temperature is sandwiched between laminar perovskite structure oxide sintered substance superconductors containing a prescribed amount of a metal component. CONSTITUTION:The slurry is prepared in such a way that a binder, a plasticizer and a solvent are added to each of a raw material for a perovskite structure oxide dielectric 1 and a raw material for laminar perovskite structure oxide superconductors 2 containing 15-60 wt.% of a metal component; they are processed to form sheet-like substances; at least more than one layer of a structure where the former is sandwiched between the latter and this sandwiched assembly is piled up is formed; the binder is removed; after that, the laminar assembly is sintered in an atmosphere containing oxygen of 900-1100 deg.C. An A-Ba-Cu oxide (where A is rare-earth elements) is used as a sintered substance power particle of the laminar perovskite structure oxide superconductors 2. The rare-earth elements are Y, La, Yb, Er, Ho and Dy. A Pb-Fe-W- Nb oxide, a Pb-Fe-W-Zn-Nb oxide or their compound is used as the perovskite structure oxide sintered substance dielectric 1.
Patent JP-H09295535-A (JP)
Title: Lift equipment of motor truck
Inventor: KISHIZAWA SUKEHISA
IPC: B60P1/44
Filed: 1996-04-30
Abstract: PROBLEM TO BE SOLVED: To make a lift gear equipped with platform and a rear body plate so as to be easily moved horizontally along the rail. SOLUTION: A rear body plate 18, setting up a lift gear equipped with a platform 22, is set up in space between a pair of rails 17 in a loading compartment, and this rear body plate is shiftable in the longitudinal direction of a car in this loading compartment after being guided by the paired rails, while it is provided with a roller guide 64 at an edge of the car front side, and in this constitution, a slide arm 62, whose one end is pivoted to a floor face 16 and the other end is slidable with the roller guide, is installed in the loading compartment, therefore this slide arm is installed rockably by a hydraulic cylinder unit 61 set up on the floor face, and thus the rear body plate and the lift gear are made shiftably in the longitudinal direction of the car.
Patent JP-S5653344-A (JP)
Title: Hot water supply system by utilizing solar heat
Inventor: YUKIMACHI KATSUROU
IPC: F24S90/00
Filed: 1979-10-08
Abstract: PURPOSE: To enable to empty a heat collector to easily perform a freezing prevention by a method wherein a tank for storing hot water is made open to the air and a heat collector is positioned at a place upper than a water lever in the tank.  
     CONSTITUTION: A hole 7 is made at an upper part of a tank 1 which stores hot water, and by this, the inside of the tank 1 is made open to the air. A heat collector 2 is arranged at a place upper than the water level 8 of the tank 1, to collect solar heat to obtain hot water. The upper part and the lower part of the tank 1 are communicated with a coupling water pipe 12 and at an intermediate place of the coupling water pipe 12 is installed a heat exchanger 3 which heats again the hot water in the tank 1 by means of the heat medium to be supplied from a heat source 5. In winter, water within the heat collector is made naturally fall to empty the heat collector 2, thus, freezing is prevented. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H08326951-A (JP)
Title: Centralized monitor device
Inventor: HOSOYA MASAKO
IPC: F16K37/00
Filed: 1995-05-29
Abstract: PURPOSE: To make an indication again to a consumer who can not release a cut-off valve though an indication for releasing the cut-off valve has been made. CONSTITUTION: The centralized monitor device is equipped with a receiving means 4 receiving data from a transmission board 2 keeping up a correspondence as a cut-off valve provided for a gas meter 1 is opened/closed, a display means 5 indicating a fact that the receiving means 4 has received cut-off valve closing data from the transmission board 2, and with a management means 6 which makes the display means 5 indicate over the display means 5 a fact that the cut-off valve is still left as closed when no cut-off valve releasing data is received from the cut-off valve within the period of a definite time after the cut-off valve has been connected to the receiving means 4, and thereby closed.
Patent JP-S619655-A (JP)
Title: Method and mechanism for fixing body
Inventor: KANAI MUNENORI
IPC: G03F9/00
Filed: 1984-06-25
Abstract: PURPOSE:To increase an amt. of X-rays contributing to exposure and to shorten exposure time length by using residual electrostatic force for position fixing. CONSTITUTION:This position fixing device 40 can be set in a housing chamber 43 by substituting the inside of an airlock chamber 41 with the outer atmospheric air and opening a gate door 42. Then, the device 40 can be transferred to just below an X-ray source 11 in the vacuum chamber B 48 by closing the door 42, substituting the airlock chamber 41 by the vacuum atmosphere, and actuating a transfer mechanism 46 and a feeding rod 47. on the other hand, the device 10 can be taken out by reversing said action after transferring the X-ray pattern.
Patent JP-S5656708-A (JP)
Title: Rolling mill
Inventor: FURUKAWA KUSUO
IPC: B21B31/20
Filed: 1979-10-12
Abstract: PURPOSE: To form the rolled material in good shape free from the camber, by giving an offset to the center axes of a couple of work rolls from the plane connecting the center axes of adjoining rolls, and by arranging the roll chock pusher for pressing above-stated work rolls respectively to the chock holder.  
     CONSTITUTION: At the rolling mill provided in its housing 8 with at least one couple of work rolls 2, 3, and the chocks 13, 14, for holding these work rolls 2, 3, an offset is given to the center axes of the work rolls 2, 3, from the plane connecting center axes of the intermediate rolls 4, 5, to opposite sides, that is the roll 2 to the material 1 feed-in side and the roll 3 to the run-out side; hereupon, the work rolls 2, 3, are held by the chocks 13, 14, which are pressed to the material 1 feed-in side and to the run-out side by the directly acting cylinders 17, 18, internally installed in the chock holders 15, 16, arranged within the housing 8; the circumferential speed of the roll 2 is made faster than that of the roll 3. By the present rolling mill, the rolled material in good shape free from the camber can be obtained without damaging the operatability. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H07313741-A (JP)
Title: Collapsible toy
Inventor: KATO HITOSHI
IPC: A63H33/08
Filed: 1994-05-23
Abstract: PURPOSE:To provide a collapsible toy capable of securely maintaining fitting of constituting elements projectingly provided with engaging projections and constituting elements projectingly provided with fitting holes. CONSTITUTION:Fitting bodies 2 which are composed of picture deformable blanks and are mounted with fitting bodies 2 projectingly provided with the fitting projections 21 at the ends are composed as three-dimensional bodies. The constituting elements projectingly provided with the fitting holes 31 for engaging the fitting projections 21 are composed of a soft synthetic resin. Then, the fitting bodies 2 are composed as the three-dimensional bodies and, therefore, the fitting surfaces are brought into surface-to-surface contact. As a result, the fitting state is securely maintained.
Patent JP-S5756142-A (JP)
Title: Nozzle for manufacturing thin strip of quenched metal
Inventor: MAEDA EIZOU
IPC: B22D11/06
Filed: 1980-09-22
Abstract: PURPOSE:To manufacture the titled nozzle which has a high thermal shock resisting property and a high corrosion resistance, by joining a main body of the nozle made of a material having a high thermal shock resisting property and a front end tip of the nozzle made of a material which is excellent in corrosion resistance. CONSTITUTION:This nozzle is composed of an upper part 7 and a lower part 8. A front end tip of the lower part 8 is made of a material which is excellent in corrosion resistance against molten metals, such as oxides of one or >2 kinds of silica, alumina, magnesia, zirconia, chromia, and calcia, boron nitride, and silicon nitride in combination. Moreover, the upper part 7 is made of a material which has a high thermal shock resisting property, such as graphitic material, alumina-graphitic material, mullite-graphitic material and melted silica.
Patent JP-S5920343-A (JP)
Title: Polyvinyl chloride resin composition
Inventor: TAKAHASHI HIROARI
IPC: C08L23/00
Filed: 1982-07-27
Abstract: PURPOSE:To provide the titled compsn. having excellent resistance to cold, volatility and heat, consisting of PVC and an epxoy compd. obtd. by epoxidizing a specified mixed fatty acid triglyceride. CONSTITUTION:20-120pts.wt. epoxy compd. is blended with 100pts.wt. PVC, said epoxy compd. being obtd. by epoxidizing a mixed fatty acid. triglyceride having a fatty acid composition consisting of 0-15wt% 12-14C satd. fatty acid and 100-85wt% 12-24C unsaturated fatty acid with the proviso that the content of the unsatruated fatty acid having one double bond per molecule is 45wt% or more, by a hydrogen peroxide method or a peracetic acid method. USE:Automobile leather, agricultural film, etc.