baber/WOPTO huggingface dataset:
Patent JP-S63280119-A (JP)
Title: Excavation work for vertical pit in bedded layer ground
Inventor: YOKOYAMA HIROSUKE
IPC: E02D5/38
Filed: 1987-05-12
Abstract: PURPOSE:To excavate a vertical pit in alternately bedded layer ground by axially inserting movably a hammer having a strike bit on its lower end in the casing and capable of jetting air for discharged soil from its lower end. CONSTITUTION:A bit 6 begins to move vertically and continuously and soil lump and gravel are crushed thereby. The crushed soil is then discharged by air from the bit 6 to upward direction through the aperture (a) of a casing 1. When boulder collides with the lower end of the casing 1, the boulder is broken by continuous striking and when it reaches hard ground, excavation by striking and soil discharge by air jet are started. A vertical pit can thus be excavated in an alternately bedded ground consisting of ordinary ground layer and hard ground layer.
Patent JP-S5237565-A (JP)
Title: Multiple effect evaporator for water- making
Inventor: YAMAMOTO TAKAYOSHI
IPC: B01D1/26
Filed: 1975-09-22
Abstract: PURPOSE: Improvement of a unit evaporator used in a multiple effect evaporator for water-making equipped with horizontal heat transfer tubes applying thin film evaporation outside the tubes. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S595708-A (JP)
Title: Fm demodulating circuit
Inventor: YAMAMOTO TSUGUO
IPC: H03D3/02
Filed: 1982-06-30
Abstract: PURPOSE:To narrow down the effective noise band width of a phase locked loop to an input signal with an extremely low level and to perform demodulation with a high S/N ratio by setting the control gain of the automatic gain controller at the front stage of the phase locked loop below a set value to the input signal with a level lower than the threshold level of the phase locked loop. CONSTITUTION:The phase difference between an FM input signal and the output of a voltage-controlled oscillator 7 is detected by a phase detector 4. Its detection output is passed to a loop filter 5 to remove an out-band noise and fed back to the voltage-controlled oscillator 7 to control its frequency. Consequently, the oscillation frequency of the voltage-controlled oscillator 7 coincides with the freqency of the FM input signal and its phase state is locked. When the input signal level drops below the threshold level of the phase locked loop, the control gain of the automatic gain controller connected to the front stage of the phase locked loop decreases below the set value correspondingly, and consequently the effective noise band width of the phase locked loop is decreased to lower the threshold level, demodulating the FM input signal with the extremely low level at a high S/N ratio.
Patent JP-S594415-A (JP)
Title: Gas adsorbing cylinder
Inventor: UMEKAWA AKIHIKO
IPC: B01D53/04
Filed: 1982-06-30
Abstract: PURPOSE:To reduce head loss and to make an adsorbing cylinder compact at the same time, by making the particle size of an adsorbent packed in the upstream side larger than that of an adsorbent in the downstream side. CONSTITUTION:A saturated adsorbing zone (a) and a highly concentrated adsorbing zone (b) are treated with a 3.2mm.-diam. adsorbent B. Next, a 1.6mm.-diam. adsorbent C is used for a low concentrated adsorbing zone (c) which requires too much adsorbing time when the adsorbent B is used, to reduce the adsorbing time. In this way, for the same quantity of a gas to be treated and the same concentration of impurities at the exit, and as compared with an adsorbing cylinder packed with the adsorbent B only, head loss is lowered and adsorbent consumption is remarkably reduced though it is slightly larger than a case of using the adsorbent C only, by packing the adsorbent B of the upstream and the adsorbent C of the downstream in a state of laminated layer. Thus reduction of head loss and compaction of adsorbing cylinder are performed at the same time.
Patent JP-H07301708-A (JP)
Title: Substrate with color filter, its production and liquid crystal display element using the same
Inventor: TANAKA KAZUKO
IPC: G02F1/1335
Filed: 1994-04-28
Abstract: PURPOSE:To provide an inexpensive color filter having high reliability. CONSTITUTION:A porous layer essentially comprising inorg. particles and a binder resin is formed on a substrate and colored to form a specified pattern. In this substrate having the color filter, the binder resin in the porous layer essentially consists of at least one kind of resin selected from polyvinylacetal, amino resin, acryl resin and modified resin of them. Thereby, the obtd. filter has good adhesion property and heat resistance so that it is suitable for a liquid crystal display element.
Patent JP-S595442-A (JP)
Title: Optical pickup device
Inventor: TAJIMA OSAMU
IPC: G11B7/08
Filed: 1982-06-30
Abstract: PURPOSE:To put a compact disk to practical use, by using a platelike member which is long in the direction orthogonal to a crossing direction of a recording track, and is parallel to a signal face of a disk, in the middle part of at least one arm member. CONSTITUTION:As for an arm member constituted of a damper 30 and a blade 32, the blade 32 which is long in the Y axis direction orthogonal to a crossing direction of a recording track of a signal face, and is parallel to a signal face of a disk is used. Accordingly, a range in which a side wall 26 and a bracket 29 move relatively in the Y axis direction is a deformed portion generated by shearing deformation of the damper 30. Therefore, a movement of a housing of an optical system in the Y axis direction becomes a minute extent that can be disregarded. Accordingly, it is possible to generate no offset in an optical spot for reading a signal, therefore, it is possible to put an optical pickup device to practical use to a compact disk having a small diameter of the innermost circumference of a recording track of an information signal.
Patent JP-H08288509-A (JP)
Title: Semiconductor device and manufacturing method thereof
Inventor: TSUJI JUNICHI
IPC: H01L21/266
Filed: 1995-04-14
Abstract: PURPOSE: To decrease the junction capacity between a diffused layer and a semiconductor substrate for accelerating the operation. CONSTITUTION: The whole surface of an element separating is covered with a gate electrode 36, a dummy gate electrode 37 and a sidewall forming SiO2 film 43 so as to form a high concentration diffused layer 45 by ion implantation using these electrodes and SiO2 film 43 as masks further to form lower impurity concentration layer 47 than a wall 33 in the same concentration type ion implantation of the impurities 46 in the same conductivity type as the impurities 44 using the same mask. Through these procedures, a depletion layer can be easily extended from the diffused layer 45 to the wafer 33 while decreasing the junction capacity.
Patent JP-S63278326-A (JP)
Title: Manufacture of semiconductor device
Inventor: YAMAGUCHI SEIICHIRO
IPC: H01L21/265
Filed: 1987-05-11
Abstract: PURPOSE:To enable forming the grooves doped in high precision and at low concentration on their inner walls, by performing ion implantation in the channel ing direction on regions where the grooves are aimed to be formed and next by forming the grooves on these doped regions. CONSTITUTION:Ion implantation of p-type impurities is performed in the channel ing direction perpendicularly to a surface of an epitaxial layer 3, and next heat treatment is performed to form p-type regions 6 on element isolation regions. After a CVD silicon dioxide film is formed, a reactive ion etching method is used to remove this film so that the film remains only inside edge parts of a first mask 4 to serve as a second mask. This second mask 7 is used to perform reactive ion etching and to form grooves 8 in the p-type regions 6. Hence the deep grooves, where impurities are introduced in high precision and at low concentration on their inner walls, can be formed.
Patent JP-H10300766-A (JP)
Title: Anomaly detecting method of wheel speed sensor, wheel speed detecting device, and wheel skid control device
Inventor: HIROSE MASANORI
IPC: G01P3/42
Filed: 1997-05-01
Abstract: PROBLEM TO BE SOLVED: To detect sensor anomalies in which abnormal pulses occur in the vicinities of the rising edges and falling edges of normal pulses. SOLUTION: A wheel speed sensor includes a sensor rotor rotating together with a magnetic pickup and a wheel. When an iron piece adheres to a downstream edge of the head of the magnetic pickup with respect to the direction of rotation of the sensor rotor, the iron piece is sucked by suction to the teeth of the sensor rotor to cause sudden changes in the density of magnetic flux and abnormal pulses regularly occur in the vicinities of the rising edges of pulses. By this, as the fluctuation of rising periods becomes larger than the fluctuation of falling periods and the ratio of the integrated value of the ratio of two successive rising periods to the integrated value of the ratio of two successive falling periods becomes larger than a set value, it is possible to detect sensor anomalies.  That the signs of the successive differences between successive rising periods are opposite and that the absolute value of the difference between the successive totals of the rising periods of successive pulses is or less than a set value indicate sensor anomalies.
Patent JP-H08288148-A (JP)
Title: Compact transformer
Inventor: KIJIMA SEIICHI
IPC: H01F27/28
Filed: 1995-04-17
Abstract: PURPOSE: To reduce electromagnetic interference as much as possible by allowing the inner side of a peripheral core facing the outer side of an inner core to be parallel to the outer side of the inner core and engaging the wall thickness part of a bobbin with the notch part of the peripheral core under the base of the inner core in a box core. CONSTITUTION: An inner core 11e is made trapezoidal in cross section and the inner surfaces of a peripheral core facing the tilt surfaces 11e1 and 11e2 of its right and left side surfaces, that is, the inner side surfaces of side plate parts 11a and 11b are formed as tilt surfaces 11a1 and 11b1 parallel to the tilt surfaces 11e1 and 11e2 . In addition, the inner side surface 11c1 of a ceiling plate part 11c facing the upper surface 11e3 of the core 11e is formed parallel to the upper surface 11e3 of the core 11e. Further, a notch part 11f is formed between the bottom surface of the base of the core 11e and lower end edge of the edge plate, and wall-thickness step parts 13d and 13e with collars 13b and 13c are engaged with a bobbin 13.
Patent JP-H0680408-A (JP)
Title: Method for concentrating and refining sulfuric acid
Inventor: ERUMARUUMANFUREETO HORUN
IPC: C01B17/90
Filed: 1993-04-19
Abstract: The invention relates to a process for concentrating and/or purifying sulphuric acid to concentrations of from 80 to 97% H2SO4, in which process temperatures in the range of from 90 to 350 DEG C can be employed, and installation parts which come into contact with the sulphuric acid consist of special alloys.
Patent JP-S5639118-A (JP)
Title: Back tensioner
Inventor: SATOU HIROYUKI
IPC: B65H23/04
Filed: 1979-09-07
Abstract: PURPOSE: To prevent the generation of loose winding and scratch flaw, by employing the sufficiently elastic rolls for applying the vertical load to the strip, and by specifying the relation between the front tension and the friction factor between the rolls and the strip.  
     CONSTITUTION: The vertical load W is applied to the strip 1 whose front and bottom surfaces are pinched by the sufficiently elastic rolls 2a, 2b; besides, the front tension TF and the back tension TB are applied to the strip 1 from the longitudinal both sides; under this condition, the strip 1 runs toward the tension reel. Hereupon, the rolls 2a, 2b, rotate following the strip 1 keeping the mutual contact, without causing the slip against the strip 1 being pulled by the front tension TF; for the purpose of assuring this condition, the vertical load W to be applied to the rolls 2a, 2b, is specified as W>TF/2μ (in which, μ is the friction factor between the rolls 2a, 2b, and the strip 1). Besides, if the brake force F equivalent to the back tension TB is applied to the rolls 2a, 2b, the loose winding can be prevented. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H01285051-A (JP)
Title: Control system for magnetic tape processor
Inventor: AOKI YOSHITAKA
IPC: G06F3/06
Filed: 1988-05-10
Abstract: PURPOSE:To accurately perform the positioning of a data block by continuing a tape traveling upon decision of the command overrunning state when a read permit signal is set in accordance with a command from a host device. CONSTITUTION:When a magnetic tape read/write command is received by a microprocessor 3 from the host device 1, the read permit signal is set to read out the next data block. Then, after setting this read permit signal, whether or not the command overrunning state is effective is detected by an overrun detecting circuit 6, and in case of the command overrun, the stoppage of the tape traveling is instructed to a magnetic tape device 5. When the command overrun is not detected, the tape traveling is continued as it is. Consequently, the command overrunning state is decided twice in the microprocessor, thus evading the competition of the read/write command from the host device and the command overrun detection in a hardware. By this method, the positioning of the data block can accurately be performed.
Patent JP-H08302272-A (JP)
Title: Primer composition
Inventor: ONO HITOSHI
IPC: C09D5/08
Filed: 1995-05-12
Abstract: PURPOSE: To obtain a two-pack primer composition composed of a main agent pack consisting of a polyvinyl butyral resin and an anticorrosive pigment and an additive pack containing phosphoric acid and effective for imparting various metals with primary anticorrosiveness and improved adhesivity, especially adhesive strength in water. CONSTITUTION: This primer composition is composed of a main agent pack containing (A) 100 pts.wt. of a polyvinyl butyral resin, (B) 30-300 pts.wt. of a phosphorous acid salt compound (preferably aluminum phosphite, zinc phosphite, calcium phosphite, etc., especially preferably zinc phosphite), (C) 20-250 pts.wt. of aluminum orthophosphate and (D) 5-80 pts.wt. of a silane coupling agent [preferably N-(2-aminoethyl)-3aminopropylmethyldimethoxysilane, 3- aminopropyltriethoxysilane, etc.] and an additive pack containing (E) 5-50 pts.wt. of phosphoric acid. The components A to D are dissolved in a proper solvent (e.g. ethyl alcohol, toluene or ethyl acetate) and the phosphoric acid used as the component E is also dissolved in the above solvent.
Patent JP-H09278249-A (JP)
Title: Image forming device
Inventor: SAITO SEIJI
IPC: B65H29/70
Filed: 1996-04-12
Abstract: PROBLEM TO BE SOLVED: To prevent a recording paper sheet to be discharged to a stacker part from curving greatly so as to stack the paper sheet accurately. SOLUTION: While a recording paper sheet 7 fed to a paper discharging part 12 is conveyed by means of a paper discharge roller 121 and two paper discharge rollers 122, a curl in the recording paper sheet 7 is eliminated by means of the paper discharge rollers 122, and then, the paper sheet 7 is discharged to a stacker part 13. When the recording paper sheet 7 is discharged, the paper discharging direction for the recording paper sheet 7 is regulated by means of a paper discharge guide part 124a arranged in the tip part of a reinforcing member 124, so that the whole of the recording paper sheet 7 can be stably stacked in the stacker part 13.
Patent JP-S5238236-A (JP)
Title: Broad-band light transmittig path
Inventor: INADA KOUICHI
IPC: G02B6/02
Filed: 1975-09-20
Abstract: PURPOSE:To improve the band of a light transmitting path by constructing it from an optical fiber wound around a core member having a noncircular shape in section.
Patent JP-H02292994-A (JP)
Title: Video signal format conversion circuit
Inventor: NAGASAWA MASAHIRO
IPC: H04N11/20
Filed: 1989-05-08
Abstract: PURPOSE:To prevent the occurrence of a prescribed code picture by detecting a prescribed section in a vertical flyback time when a prescribed code of a video signal is inserted and suppressing the amplitude so as to prevent the instantaneous level of the video signal from exceeding a prescribed level. CONSTITUTION:An NTSC color video signal (a) is supplied directly to a subtractor 2 and an adder 3 via an input terminal IN as well as to a 1H delay circuit 1. At the same time, the signal (a) is supplied to a switch control signal generating circuit 9 of a digital phase shifter 40 for production of an NTSC/PAL system conversion signal (c). Thus the chroma signal component obtained by the subtractor 2 is converted into a frequency corresponding to a PAL system with the signal (c) and synthesized with a luminance signal component via an adder 10. The output of the adder 10 is supplied to an amplitude suppression circuit 52 and a vertical synchronizing separator 53 for detection of a prescribed section where a prescribed code of the video signal is inserted. Then the circuit 52 is controlled by an MMV 54 so that the instantaneous level of the video signal does not exceed a prescribed level in accordance with the detection signal.
Patent JP-H10305964-A (JP)
Title: Take-up control method of spindle type winder
Inventor: HAMASU BUNJI
IPC: B65H54/02
Filed: 1997-05-02
Abstract: PROBLEM TO BE SOLVED: To make improvements in the quality and handleability of a filament package by rationalizing a relationship between the peripheral velocity of a contact roller and the surface peripheral velocity of this filament package. SOLUTION: According to a take-up control method of this spindle type winder, a contact roller 3 is forcibly made contact with a cop body 2 to be formed on a bobbin installed in a bobbin holder 1 being driven by a pinsle, detecting a surface peripheral velocity in this cop body 2, and rotational frequency in the bobbin holder 1 is controlled so as to make the surface peripheral velocity become the setting value. In this case, the bobbin holder 1 and the contact roller 3 are independent from each other and free of being driven each, and at that time, during the winding of filament yarn, a relationship of Vb<=Vc<=1.002Vb between peripheral velocity Vc of the contact roller 3 and surface peripheral velocity Vb is satisfied.
Patent JP-S5239305-A (JP)
Title: Code transmission system
Inventor: ETOU YOSHIZUMI
IPC: H04L27/02
Filed: 1975-09-25
Abstract: PURPOSE:To make it possible to decode original codes, with a simple composition, by shaping with clocks which correspond to transmitting codes.
Patent JP-H10307043-A (JP)
Title: Variable reluctance type resolver
Inventor: YAMAMOTO TAKESHI
IPC: H02K24/00
Filed: 1997-05-02
Abstract: PROBLEM TO BE SOLVED: To improve angle detection accuracy of a variable reluctance type resolver. SOLUTION: The resolver comprises a stator which has a ring-like yoke 2 and a plurality of teeth 3 projecting from the yoke 2 in a centripetal direction and to which a one-phase excitation winding 6 and two-phase output windings 7, 8 are wound, and an inductor type rotator 12. The one-phase excitation winding 6 is wound in a manner of wave winding to each of the teeth 3 and the two-phase output windings 7, 8 are wound in a manner of concentrated winding to the yoke 2 separately from each other. Since the windings 7, 8 are separately wound and not layered, a variation in impedance of the output windings 7, 8 because of influences of a winding irregularity and a leaking magnetic flux is lessened and an angle measurement error caused by an error of the impedance is restricted, whereby angle detection accuracy is improved.
Patent JP-H04344137-A (JP)
Title: Stator for motor and manufacture of the stator
Inventor: SATO HIRONOBU
IPC: H02K15/02
Filed: 1991-05-20
Abstract: PURPOSE:To obtain a structure in which a stator winding can be wound from outside of a stator without a magnetic bridge at a rotor insertion hole side. CONSTITUTION:Teeth 36-333 are mounted radially at an equal interval on a circular nonmagnetic members 35, 36 having a rotor insertion hole 1, stator windings 49a-49d, 50a-50d are wound on the teeth, and a yoke 51 is engaged with outer peripheries of the teeth 26-33.
Patent JP-H07321391-A (JP)
Title: Optical fiber amplifier
Inventor: OKUDA MICHITAKA
IPC: H01S3/06
Filed: 1994-05-27
Abstract: PURPOSE:To realize a highly efficient inexpensive optical fiber amplifier having reduced number of components. CONSTITUTION:An Er doped fiber (c) is connected, at the opposite ends thereof, with first and second optical multiplexer/demultiplexers (a), (b) to constitute a ring. The first optical multiplexer/demultiplexer (a) receives lights having substantially same wavelength from excitation light sources WP1, WP2 and used for forward/reverse excitation whereas the second optical multiplexer/ demultiplexer (b) is used for inputting/outputting a signal.
Patent JP-H06342329-A (JP)
Title: Peripheral controller
Inventor: MOTOO KAZUTOSHI
IPC: G06F3/00
Filed: 1993-05-18
Abstract: PURPOSE:To reduce the power consumption of the peripheral controller between a central processor and a peripheral device by stopping supplying electric power to the device part of the peripheral device unless the interface for the peripheral device is logically connected. CONSTITUTION:The peripheral controller 2 has a connection information storage part 24 which stores connection information on the peripheral device and a power source control instruction part 25 which instructs the power-ON/OFF of the peripheral device 3 by the signal from the storage part 24. The peripheral device 3 has a command decoding part 32 which decodes the power-ON/OFF indication and a power-ON/OFF circuit 33 which performs ON/OFF control over a power source part 35 with the signal from the decoding part 32.
Patent JP-H0412599-A (JP)
Title: Element mounting program forming method for vehicle mounted board and its equipment
Inventor: SUZUKI SHINGO
IPC: H05K13/04
Filed: 1990-05-02
Abstract: PURPOSE:To simply realize high precision input by correcting angles and dimensions with fiducial mark coordinates, and inputting the mounting coordinates and mounting angles of an object. CONSTITUTION:When the intialization and the correction of an element mounting data file are executed, an FD 4 for storing data is set on a processor 10, and all data of the following except the data of an element are set, thereby inputting element mounting data; transmission data name, machine name, board size, each data of fiducial marks, two out of fiducial mark coordinates 41-45, spile mounting areas 46, 47, etc. When the employment of a digitizer 2 is selected, angles and dimensions are corrected by using the fiducial mark coordinates which are inputted in the first place. The mounting angles are made to correspond with pressbuttons of a cursor 30. Thereby the element can be simply mounted with high precision.
Patent JP-H08285417-A (JP)
Title: Air conditioner
Inventor: DOBASHI MITSUHIRO
IPC: F25B49/02
Filed: 1995-04-17
Abstract: PURPOSE: To provide an air conditioner in which a poor state of a sensor can be detected accurately without having any relation with an operating environment. CONSTITUTION: An air conditioner 100, comprised of an indoor heat exchanger arranged within an indoor device 2, an outdoor heat exchanger arranged in an outdoor device 1 and a pipe for connecting each of the heat exchangers, is provided with a CT sensor 14 or the like for measuring a value at each of the components in the air conditioner and an outdoor controller 11 for sensing whether or not the CT sensor 14 or the like is poor in operation after the operation state of the air conditioner enters a stable range.