baber/WOPTO huggingface dataset:
Patent JP-S641131-A (JP)
Title: Tracking servo system for optical disk device
Inventor: WACHI SHIGEAKI
IPC: G11B7/09
Filed: 1987-06-24
Abstract: PURPOSE: To keep proper tracking servo characteristic by providing a detection circuit for a push-pull error signal so as to eliminate a false tracking error signal due to the deviation of an objective lens.  
     CONSTITUTION: A push-pull error detection circuit 30 outputs an application signal of an actuator coil 29B driven by a phase compensation circuit 29A via a low pass filter 30A to detect a false tracking error signal generated due to the eccentricity of the optical disk. That is, the peak of a tracking error signal is detected from a traverse signal in crossing the track laterally and an AGC amplifier 21 in the servo circuit is controlled at reproduction or record ing depending on the level of the error signal obtained through the calculation of the peak to form a proper tracking error signal and the state of skew of the disk is detected depending on the change in the DC level of the tracking error signal thereby eliminating the offset component of the tracking error signal generated by the skew. 
     COPYRIGHT: (C)1989,JPO&Japio
Patent JP-S6314014-A (JP)
Title: Heater utilizing electromagnetic wave
Inventor: HOSOKAWA MASUO
IPC: H05B6/64
Filed: 1986-07-01
Abstract: PURPOSE:To permit the heating of a material to be heated in a short time with a good energy efficiency, by a method wherein powdered or short fiberous absorbent agent for electromagnetic high-frequency wave is contained in enamel provided on a main body in a condition that it is in contact with the material to be heated. CONSTITUTION:Enamel 2a, to be brought into contact with a material 3 to be heated, is formed on a main body 1 constituted of a non-absorbent material (ceramic material, for example) for electromagnetic high-frequency wave. Powdered or short fiberous absorbent material 4 (graphite or silicon carbide, for example) for the electromagnetic high-frequency is contained in the enamel 2a. As a result, the material to be heated may be heated in a short time with a good energy efficiency.
Patent JP-S5380080-A (JP)
Title: Cutting method preventing vibration
Inventor: MURATA RIYOUJI
IPC: B23Q11/00
Filed: 1976-12-23
Abstract: PURPOSE: To check generation of vibration in cutting by means of a contact area constraining rake face for keeping the contact length with chip constant mounted at the tip of the tool. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H025407-A (JP)
Title: Measurement of connection accuracy for electron beam lithography
Inventor: NOZUE HIROSHI
IPC: H01L21/30
Filed: 1988-06-22
Abstract: PURPOSE:To directly measure a field junction accuracy accurately in a short period of time by forming the exposure pattern of a main scale by an exposure region boundary and a vertical linear line separately from the boundary, and forming the exposure pattern of a sub scale by the exposure region boundary and a vertical linear line in contact with the boundary. CONSTITUTION:A connection accuracy evaluation pattern is composed of a main scale 50 and a sub scale 60, two linear lines 61R, 61L of the scale 60 become one set for one linear line of the scale 50 such as a linear line 51 to form one scale. When no vertical deviation exists in a field boundary 20 between fields FL and FR, the linear line 51 is in contact with the line 61R, 61L, and a linear line 52 is not in contact with linear lines 62R, 62L and linear line 55 is not in contact with linear lines 62R, 62L. In case of a connection accuracy evaluation pattern, reference patterns 70, 80 are disposed in the field FL. Thus, a vertical accuracy can be simultaneously read directly, and a length measuring unit is not required.
Patent JP-S5857134-A (JP)
Title: Electrophotographic receptor
Inventor: WATARAI OSAMU
IPC: G03G5/07
Filed: 1981-09-30
Abstract: PURPOSE:To obtain a multilayer function separating type electrophotographic receptor high in sensitivity and low in residual potential, by adding a specified triphenylmethane polymer to a charge transfer layer in an electrophotographic receptor having a charge generating layer and a charge transfer layer on a conductive substrate. CONSTITUTION:A triphenylmethane polymer having general polymer (I) (R is alkyl; X is H or methyl; Z is alkyl or p-phenylenealkylene group; Q is H or methyl, methoxy, disubstituted amino group, nitro, cyano, halogen; and n is an integer of 1-400) has little absorption in the visible region, and characteristics of functioning especially effectively as a charge carrier transfer substance when used in combination with substance generally absorbing light in the visible region and generating charge carriers. Therefore, a high sensitivity electrophotographic receptor is obtained by dispersing the charge carrier generating substance 3 into the charge carrier transfer medium 4 contg. said triphenylmethane polymer and forming the obtained 2-phase composite type and function separating type electrophotographic receptor 23 on a conductive substrate 1.
Patent JP-S6311810-A (JP)
Title: Processing of output data for earth magnetism sensor
Inventor: ANDO HITOSHI
IPC: G01C17/28
Filed: 1986-07-01
Abstract: PURPOSE:To prevent erroneous detection of a bearing, by replacing an output data of an earth magnetism sensor with a specified data when it is detected from identifying information that a site subject to a disturbance of earth magnetism exists within a specified distance ahead of the current location. CONSTITUTION:Identifying information is inserted into a map data for a site subjected to a disturbance of earth magnetism such as crossing beforehand. A CPU 7 reads out a data at the subsequent point determined numerically based on the current location from a recording medium 10 to calculate the distance to the subsequent point. If this distance is within a fixed range, it is judged whether a crossing or the like exists near the point or not. When a crossing or the like is determined to exist based on identifying information of the map data, an output data of another sensor, such as angular sensor 2 is used instead of the output data of the earth magnetism sensor 1 until passage through a fixed distance is confirmed after passing the crossing or the like. Otherwise map data may be used or running may be done holding the approaching angle of the vehicle to the point. This can prevent erroneous detection of a bearing as caused by the disturbance of earth magnetism.
Patent JP-S5584279-A (JP)
Title: Narrow groove submerged arc welding method
Inventor: SUGIOKA ISAO
IPC: B23K33/00
Filed: 1978-12-19
Abstract: PURPOSE: To enable one layer one pass submerged arc welding to be done for accumulated layer thicknesses 30mm or more without the formation of any undercuts and cracking even in narrow groove by limiting the deposition amount for the width of the groove portion of the specific width and angle to the specific range.  
     CONSTITUTION: The groove width W is made 6W25mm. Below these, slag removal is difficult and above these, no advantage can be taken of the efficiency and economy of the narrow groove welding. The groove angle α is made less than 20° because at 20° or more, advantage cannot be taken of the features of the narrow groove welding in the case of plates. The ratio D/W 2  of the square of deposition amount D(g/m) and groove width W (mm) is made 0.8W8.0 and the ratio D/W of both 50 or less. If the former exceeds this, undercuts become more likely to occur, resulting in the increased danger of high temperature cracking. Conversely, the one layer one pass becomes infeasible below this. If the former exceeds this, the impact toughness of the weld metal degrads considerably. Below 30mm of the cumulated layer thickness, both-side 1-pass welding is also feasible. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-2000347727-A (JP)
Title: Control system
Inventor: KURATA KAZUO
IPC: G05B23/02
Filed: 1999-06-03
Abstract: PROBLEM TO BE SOLVED: To store data scrupulously when required even without making the storage capacity of a recorder for data storage large and also to perform trend display. SOLUTION: Data is normally fetched in a 200-millisecond collection cycle and temporarily stored in a trend data collecting part (ST1 and ST2). Meanwhile, a control status, for instance, whether a digital signal T-101D made to correspond to an alarm, etc., is ON or not is discriminated (ST4), and the temporarily stored collection data are thinned every 200 millisecond during OFF (ST5), recorded in a data storing part and also subjected to trend display (ST6 and ST7). When the signal T101D becomes ON (ST4), the collection data temporarily stored every 200 millisecond are recorded in the data storing part as they are and also subjected to trend display (ST6 and ST7).
Patent JP-S5947543-A (JP)
Title: Earthquake-proof device
Inventor: KOMI TOSHIO
IPC: F16F15/02
Filed: 1982-09-09
Abstract: PURPOSE:To enhance the effect of earthquake-proof in a device for reducing seismic acceleration delivered upon earthquake to equipments, by reducing the seismic accelerations in the horizontal and vertical directions. CONSTITUTION:An Y-axis linear-movement device 4 is arranged in the upper part of an X-axis linear movement device 2 set on a pair of X-axis rails which are laid on a base 7, and is engaged with a pair of Y-axis rails 3 orthogonal to the rails 1. A supporting bed 11 to whose lower surface the Y-axis rails 3 are secured, is connected to the base 7 through a friction damper 6. An equipment setting bed 8 is attached to the supporting bed 11 through a parallel crank device 20 consisting of levers 201, 202 having their lower ends connected together through a tansion spring 26. The delivered horizontal seismic acceleration is reduced by the X- and Y-axis linear movement devices 2, 4, and the delivered vertical seismic acceleration is reduced by the parallel crank device 20 and the tension spring 26.
Patent JP-H04354135-A (JP)
Title: Method and device for forming bump
Inventor: NISHIMURA HIDEO
IPC: B23K1/002
Filed: 1991-05-31
Abstract: PURPOSE: To inexpensively, efficiently and accurately form a bump having a shape suitable for flip chip type bonding and sufficiently large volume. CONSTITUTION: Solder 8 melted in a chamber 1 is extruded from a fine hole 3 by pressurizing the chamber 1, stuck to the surface of a pad 12 and the pressure is removed, so that the melted solder is divided by its own surface tension and the divided solder is left on the pad as a solder bump.
Patent JP-S6047414-A (JP)
Title: Method and device for growing thin film
Inventor: TANABE MICHIHARU
IPC: H01L21/203
Filed: 1983-08-26
Abstract: PURPOSE:To eliminate the contaminant on a boundary of a grown thin film and a substrate and to obtain the ideal boundary by irradiating carbon, which is not easily removed by heat treatment, with ultraviolet rays to remove the carbon, after which the substrate is prevented from being exposed to the atmosphere till the start of growth. CONSTITUTION:In the outside of the device, plural low-pressure mercury lamps 13 are arranged at the bottom of a substrate introducing chamber 1 comprising an exhaust pump 2 through a valve 5. With keeping the chamber 1 at the atmospheric pressure, the substrate 9 put on the supporting part 15 of an end part 14 of a shaft 8 is inserted in the chamber 1. Next, the carbon oxide adhering to a surface of the substrate 9 is removed by irradiation of the lamps 13 under 1 Torr. Then the chamber 1 is made to be vacuous by the pump 2 and the substrate 9 is carried into the growth chamber 3 which is made to be vacuous through a valve 6. After that, the substrate 9 fixed to a supporting part 16 in the chamber 3 is heated by a heater to remove oxygen and then the desired thin film is produced on the surface of the substrate 9 by a heater 12 and an electron gun 11.
Patent JP-H09321264-A (JP)
Title: Solid-state image pickup element
Inventor: SUZUKI MASAHISA
IPC: H04N5/335
Filed: 1996-05-28
Abstract: PROBLEM TO BE SOLVED: To simplify the structure while reducing the size and weight and decreasing the number of components by depositing a film for shielding the part other than the light receiving part on a solid-state image pickup element and reflecting an incident light on the flat deposited film in an arbitrary direction other than the direction of the optical axis. SOLUTION: An SiO2 layer 25 is formed to have an inclining surface except a light receiving part 11 and a light shielding Al film 60a is deposited thereon. The Al deposited film 60a imparts directivity to a reflected light not converted into an electric signal. In order to measure the exposure level, a light from an object passed through an image pickup lens, a diaphragm and a shutter is focused on a solid-state image pickup while being reflected partially on the light shielding Al film 60a. Since the reflected light has directivity, the exposure level can be measured in real time when a condenser lens and a light receiving lens are arranged in place. Furthermore, even an instantaneous light, e.g. strobe light, can be fed back and TTL light control can be realized.
Patent JP-H112658-A (JP)
Title: Semiconductor integrated circuit device
Inventor: YOSHIDA TAKASHI
IPC: G01R31/28
Filed: 1997-06-13
Abstract: PROBLEM TO BE SOLVED: To judge good or bad only with DC voltage impressing by detecting whether or not an impressing source voltage is within a specific range, outputting the detected signal in the case of out of range and pulling up or pulling down each signal terminal with that signal. SOLUTION: As positive inputs to voltage comparators 12 and 13, a source voltage VCC and a performance guarantee lower limit voltage VCCL are respectively given, and as negative inputs a performance guarantee upper limit voltage VCCH and a source voltage VCC are respectively given. With an OR gate 14, a logical sum of the outputs of the voltage comparators 12 and 13 is calculated and made to be the output signal of a source voltage judgment circuit 11. In the case the source voltage VCC is out of the range of performance guarantee voltage, the output signal of the source judgment circuit 11 becomes H level and an N channel MOS transistor 16 comes in continuity state. As each signal terminal 1, 5, 7... is pulled down to the ground potential, only by impressing specific DC voltage to them in turn, judging whether or not all LSI are correctly connected can be judged. By this, good or bad can be judged only by impressing DC voltage and thus function tests become unnecessary.
Patent JP-S5282046-A (JP)
Title: Controlling for gathering information in store
Inventor: KAWAMURA KOUICHI
IPC: G07G1/14
Filed: 1975-12-29
Abstract: PURPOSE: To correct the hard total information serially by only providing the transmission line with rather low speed and the memory with small capacity in, for instance, the POS system. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-2000346885-A (JP)
Title: Capacity measuring circuit
Inventor: MIYAMOTO HIDEHIRO
IPC: G01D5/24
Filed: 1999-06-03
Abstract: PROBLEM TO BE SOLVED: To make measurable a capacity at high resolution and at high accuracy. SOLUTION: A positive direct current voltage is supplied from a direct current power supply 8 to a switched capacitor circuit 7 including a variable capacity element 2 wherein capacity varies responsive to a measured amount, switching elements 4, 6 of switched capacitor circuits 4, 6 are repeatedly turned on and off over a predetermined period, and a negative direct current voltage is supplied from a polar inverse circuit 16 to an integrating circuit 9 after the predetermined period. Variation of the polarity of output of the integrating circuit 9 is detected by a comparator 26. A counter 30 starts to measure time after a predetermined period, and the counter 30 stops measuring the time when variation of the polarity is detected by the comparator 26.
Patent JP-H112630-A (JP)
Title: Method for evaluating copper discoloration property of copper-pipe extracting and extending oil and copper-pipe extracting and extending oil
Inventor: KODAIRA MUNEO
IPC: G01N33/00
Filed: 1997-06-13
Abstract: PROBLEM TO BE SOLVED: To make it possible to evaluate the discoloration property of a clean copper piece by inputting pipe extracting and extending oil for testing and a surface clean copper piece in a heat-resisting tightly sealed container, heating the materials under the reducing atmosphere or under the inactive gas atmosphere, and thereby forming the remaining oil having the same quality as that of practical oil. SOLUTION: After pipe extracting and extending oil 3 for testing and a surface clean copper piece 5 are inputted into a heat-resisting tightly sealed container (separatre flask) 2, the inside of the flask is heated for a specified time by a mantle heater 4 under the reducing atmosphere or under the inactive gas atmosphere, and the extracting and extending oil 3 is thermally dissolved. Thus, the remaining oil having the same quality as the practical oil remaining in the soft copper pipe obtained in the annealing in the annealing process of an actual copper-pipe manufacturing line is formed. At the same time, the presence or absence of the discoloration of the copper piece 5 is evaluated. Furthermore, the blend oil comprising the main component of high-viscosity composite oil and the mine-oil diluted component in low viscosity is used as the copper-pipe extracting and extending oil.  The diffusion component of the mine oil occupying in the blend oil is less than 20 wt.%. The copper pipe obtained with this extracting and extending oil is not colored at all.
Patent JP-H057271-A (JP)
Title: Facsimile device
Inventor: OTO TSUNEO
IPC: H04N1/21
Filed: 1991-06-27
Abstract: PURPOSE:To store the image information of a transmission document in a memory as a transmission memorandum by an operator by controlling whether or not data stored with a first storage means is to be stored in a second storage means. CONSTITUTION:A image memory 30 which is a semiconductor memory stores the received image data, and a floppy disk(FD) 20 which is a non-volatile memory stores the image data transferred from the image memory 30. In this case, a main control part 1 manages the data storage state of the respective memories and controls transfer/non-transfer to the FD 20 in accordance with the operator's instruction through a key input part 80 and the time measured by a timer 70. Thus, by controlling the transfer of the transmission image information from the first storage means (semiconductor memory) 30 to the second storage means (FD) 20 with the operation button on an operation part 5 and the timer 70, the operator can easily prepare the memorandum of the transmission document on the FD 20 and proof for the time of a trouble in a facsimile communication can be obtained.
Patent JP-S6048607-A (JP)
Title: Field effect transistor amplifier
Inventor: IMAI HIROKI
IPC: H03G1/00
Filed: 1983-08-29
Abstract: PURPOSE:To attain the gain control with a negative input and a negative output by connecting a gain control FET to a prescribed position between a point on a current path for an input FET and a constant current source FET and a point on a current path of an amplifier FET and a constant current source FET. CONSTITUTION:The gain control FET35 controlling the signal propagating characteristic is connected to a position shown in A between a point 45 on a current path of the input FET31 and the constant current source FET34 and a point 46 on a current path of the FET37 for amplification and controlling output potential and the FET38 for constant current source under the circuit condition where a potential of the point 45 and a potential of the point 46 are nearly the same. The FET35 controls the signal amount passing through the FET35 by changing the potential of the gain control terminal 42. That is, when the potential at the terminal 42 is brought into a negative level, the FET35 approaches the pinch-off state and the resistance goes to high, resulting that the passing signal is attenuated and the amplifier gain is decreased. When the potential is brought into a positive level conversely, since the resistance of the FET35 becomes low and the attenuation of the signal is avoided, the gain of the amplifier is increased and the limit of the gain is attained.
Patent JP-S6048370-A (JP)
Title: Impact type dot matrix printer
Inventor: SAWADA KAZUO
IPC: B41J2/25
Filed: 1983-08-26
Abstract: PURPOSE:To obtain the titled printer having a simple structure and capable of reducing noise caused by an impact wire, by forming the impact wire for use in printing from a specific Ni-Ti type alloy. CONSTITUTION:An impact wire 1 is formed of an alloy having a composition consisting of 50-60wt% of Ni and the remainder of Ti or Ni or Ti partially substituted with Cu, Al, V or Zr. In this case, it is desirable that the Ni-Ti type alloy is held to a martensite state at a temp. using the impact wire. In order to enhance the anti-wear property of the impact wire, an inorg. highly hard substance such as a ruby may be applied or adhered to the leading end thereof.
Patent JP-H027165-A (JP)
Title: Electronic equipment
Inventor: WATANABE HAJIME
IPC: G06F11/22
Filed: 1988-06-27
Abstract: PURPOSE:To reduce checking work by storing abnormality generated in electronic equipment, outputting abnormality information stored at the time of checking together with corresponding maintenance information. CONSTITUTION:A CPU 151 judges the conditions of a width detecting part 24, an inspecting part 25, a conveying system 159 and input equipment 165, and when the abnormality is generated, an error code corresponding to the generated abnormality is stored into a RAM 153 together with the number of times of generation. When a checking instruction is inputted from an operating part 13, the error code is read in the sequence of the larger number of times of generation from the RAM 153, the maintenance information corresponding to the abnormality is read, and outputted to a printer 15. Thus, without requiring a checking manual, etc., maintenance work can be executed in a short time.
Patent JP-H1052492-A (JP)
Title: Needle assembly
Inventor: SZABO SANDOR
IPC: A61M5/32
Filed: 1997-06-13
Abstract: PROBLEM TO BE SOLVED: To make manufacture and use of a needle assembly simpler by equipping the needle assembly with a shield body which can eccentrically rotate between the open position and the close position around a hinge and move between the closs position and the engaging position in the axis direction. SOLUTION: A hinge 50 of a long shield body 36 with an opening from one end 40 to the other end is attached on an attaching tool 46 to be held on a needle hub 24. By moving the shield body 36 into the axis direction with respect to the attaching tool 46, the hinge 50 is rotated between the close position and the open position and between the engaging position and the closed position in a condition that the center of the shield body 36 is deviated. The motion of the shielding tool between the engaging position and the closed position, i.e., Non-engaging position, in the axis direction with respect to the attaching tool 46 is regulated by moving a dowel 54 in the axis direction in a slot 56. By engaging/disengaging a shelf-like protrusion 60 and a tab 58, this needle assembly 10 is brought into an engaging/disengaging condition.
Patent JP-H053928-A (JP)
Title: Air bag built-in safety belt
Inventor: TAKAHASHI TOSHIRO
IPC: A62B35/00
Filed: 1991-06-27
Abstract: PURPOSE:To improve the safety by folding an air bag to be stored in the whole of the inside periphery of a belt main body, and generating gas when the drop acceleration of a worker becomes more than a designated value to be introduced into the air bag in a safety belt for high lift work. CONSTITUTION:When a worker drops, the drop acceleration is detected by an acceleration detecting device 9 built in a gas generator 5. When the acceleration becomes more than a designated value, an ignition device 8 is operated. Thus, chemical substance 7 is ignited to instantaneously generate a designated quantity or more of gas. The gas is introduced into an air bag 4 to inflate the bag 4, so that a belt main body 2 is kept from biting into the body to protect the body.