baber/WOPTO huggingface dataset:
Patent JP-S63148440-A (JP)
Title: Optical pickup device
Inventor: TAKAHASHI YOSHITAKA
IPC: G11B7/135
Filed: 1986-12-11
Abstract: PURPOSE:To perform a tracking control with high accuracy by specifying a relationship among a space between a light emitting element and a light receiv ing element, the size of the light receiving surface of the light receiving element in a tracking direction or a direction orthogonal to the direction opposite to the tracking direction, and the half-of full angle of the light emitting element. CONSTITUTION:A light emitting element 22 moves together with an objective lens 10 in the tracking direction or the direction opposite to the tracking direc tion. A light receiving element 24 receives the light from the element 22. A distance (a) is secured between both elements 22 and 24, while the light receiving surface of the element 24 has a dimension (b) in the tracking direction or the direction orthogonal to the direction opposite to the tracking direction. Thus tantheta<=b/a is satisfied where the half of full angle of the element 22 is set at 2theta. Thus it is possible to easily detect the position of the lens 10 despite the rather reduced attachment accuracy of the element 22 or 24 and to obtain an optical pickup device containing a control means.
Patent JP-H09138126-A (JP)
Title: Device for detecting angle of deflection of rope
Inventor: SUZUKI SHUNTARO
IPC: G01B5/24
Filed: 1995-11-14
Abstract: PROBLEM TO BE SOLVED: To detect an angle of an winding-up rope by a simplified structure, eliminate wearing thereof, and reduce maintenance frequency by providing a circular member which is in contact with a cylindrical member which is decanted together with the winding-up rope and prevents its upper movement. SOLUTION: A cylindrical member 12 encloses a winding-up rope 11 with a slight space therebetween and is decanted together with the rope 11. A circular member 14 is fitted on a fixing part 13a of winding-up crane and is arranged around the rope 11 in a manner that it is not in contact with the vertically moving rope 11. The member 14 is made larger than the upper end face of the member 12, so that the member 12 is not wound up upward from the contact position. A flexible string member 16 is formed of thin rope, for example, and connects the members 14 and 12, further prevents the lower movement of the member 12 by means of its self-weight or contact with the rope 11. Then, a computing device 20 computes an angle of deflection on the basis of the angular velocity that is detected by an angular velocity sensor 18 fixed on the member 12.
Patent JP-H11194308-A (JP)
Title: Multifocal ocular lens
Inventor: CHAUVEAU JEAN-PIERRE
IPC: G02C7/06
Filed: 1998-10-16
Abstract: PROBLEM TO BE SOLVED: To provide the well proportioned apportionment of isospherical value lines and isocylindrical value lines by assuring rapid progression of average spherical values and assuring the presence of a large near sight region. SOLUTION: This lens 1 is the multifocal ocular lens including an aspherical surface having an average spherical value and cylindrical value at all points thereon and includes the main meridian 2 of the progression passing the three regions; the far sight region VL, the near sight region VP and the intermediate sight region VI. The main length of the progression regulated as a ratio between a power increment value and the max. inclination of the average spherical value along the meridian 2 is set shorter than 16 mm. The spherical value is monotonously changed on both sides of the meridian 2 as a function of an angle on a radial circle of 20 mm to be aligned to the geometrical center of the lens 1.  The far sight region VL delineated in the upper part of the lens 1 by a line formed at the point equal to the power increment of half the cylindrical value is formed to have an angle region having a start point at the geometrical center of the lens 1 having a bevel angle larger than 150 deg..
Patent JP-S62151714-A (JP)
Title: Vehicle navigation device
Inventor: KASHIWAZAKI TAKASHI
IPC: G08G1/137
Filed: 1985-12-26
Abstract: PURPOSE:To prevent a display image from having a break by providing the 2nd range wider than the 1st range on a memory and making the timing of drawing early. CONSTITUTION:Only part of a specific range of an image drawn on memories 15 and 17 is transferred to memories 20 and 21 and then displayed. When a displayed range exceeds the range written on the memories 16 and 17 as a vehicle runs, the range (shown by a solid line) on the memories 16 and 17 which is a specific distance D outside the range (shown by a dotted line in a figure (a)) written on a memory 10 is specified; when this outside range exceeds the range of the map drawn on the memories 16 and 17, the map containing the current position in the center is read out of a memory 5 and drawn on the memories 16 and 17. Therefore, when a scale is small, the movement of the display position of a vehicle mark on the map is slow, but the writing to the memories 16 and 17 is speeded up, so part of the map is prevented from being absent when displayed on the screen.
Patent JP-H07154289-A (JP)
Title: Data carrier system
Inventor: TOYODA TOMIO
IPC: H04B1/59
Filed: 1993-11-25
Abstract: PURPOSE:To attain system normal communication by differentiating return timings from respective responders so as to allow an interrogator to locate from which a reply comes even when plural responders are in existence within a communication available zone. CONSTITUTION:A high frequency power (interrogation wave) sent from an interrogator 20m is received by an antenna 31 of a responder 30 in a data carrier system 10. Then the responder 30 uses a power of the interrogation wave to activate an internal circuit and a radio wave (reply wave) extended by preset information is returned to the interrogator 20 to make communication. The data carrier system allows the interrogator 20 to send N-sets of interrogation waves sequentially corresponding to N sets of the responders 30 in the lump. Then the transmission timing from each responder 30 is differentiated from the interrogation waves in the order of transmission to each responder 30. Thus, simultaneous communication with the plural responders 30 within a communication available zone is attained by the interrogator 20.
Patent JP-H03157271-A (JP)
Title: Steering angle control device for vehicle
Inventor: MATSUMOTO TAHEI
IPC: B62D6/00
Filed: 1989-11-14
Abstract: PURPOSE:To reduce hysteresis of a steering angle command value and an actual steering angle and to improve reliability by a method wherein a current command value deciding part formed with a nonlinear compensating part and a hysteresis correcting part is connected between a steering angle command value set part and a current value control part. CONSTITUTION:Based on a total steering angle theta and a car speed V, a steering angle command value is set by a set part 2. A current value responding to a set steering angle command value and a current value corrected based on a change amount of the steering angle command value are respectively calculated, and by adding a correction current value to a calculated current value, a current command value is decided by a deciding part 3. Further, according to the decided current command value, a current value is controlled by a control part 4. Meanwhile, a given oil pressure is generated by an oil pressure source 5, and an oil pressure responding to a controlled current is generated by a pressure control valve 6. Accord ing to an oil pressure from the pressure control valve 6, the one of rear and front wheels FW and RW of a vehicle is auxiliarily steered by a steering angle moving part 7.
Patent JP-2000122035-A (JP)
Title: Display device
Inventor: KATAKURA KAZUNORI
IPC: G09F9/35
Filed: 1998-10-16
Abstract: PROBLEM TO BE SOLVED: To correct fine DC components which are generated from variations, etc., of component elements and parts and are superposed over the entire part of a matrix electrode section. SOLUTION: The optical modulation material disposed between a pair of substrates arranged to face each other is driven by impressing information signals and scanning signals to the matrix electrodes formed on these substrates by a driving means 105. One or more pulses having the DC component are impressed thereto within the electrical relaxation period of the optical modulation material via a scanning signal control circuit 102 and an information signal control circuit 103 by a pulse impressing means 4.
Patent JP-H01138754-A (JP)
Title: Schottky diode
Inventor: SHIMADA YASUHIDE
IPC: H01L29/47
Filed: 1987-11-26
Abstract: PURPOSE:To contrive to prevent a significant increase in an inverse current by a method wherein the arrangement structure of P-type semiconductor regions is formed in an N-type semiconductor region separated from a Schottky barrier junction surface in such a way that depletion layers due to a P-N junction, which is generated strongly at the time of application of an inverse voltage, are distributed in the N-type semiconductor region. CONSTITUTION:In a Schottky diode consisting of an N-type semiconductor substrate 1, an N-type semiconductor region 2, a Schottky barrier metallic electrode 3, guard rings 4, an insulating film 5 and a metallic electrode 6, P-type semiconductor regions 7 are formed in the region 2 at such intervals that depletion layers due to a P-N junction at the time of application of an inverse voltage are connected mutually and in such a way that the regions 7 are separated from both of the surface of the junction between the electrode 3 and the regions 7 and the surface of the substrate 1 and are arranged in one row between the rings 4. Moreover, each of the regions 7 is connected with the electrode 3 by an Al wiring, a low-resistance diffused layer or an external wiring, for example, on a semiconductor chip and the electrode 3 and the regions 7 are made equipotential to each other.
Patent JP-H09107802-A (JP)
Title: Device for pressing bed soil at corner of seedling-raising box
Inventor: ISHIKAWA KOICHI
IPC: A01G9/08
Filed: 1995-10-19
Abstract: PROBLEM TO BE SOLVED: To provide a device for pressing a bed soil at the corner of a seedling- raising box, enabling the assurance of the transfer of the seedling-raising box, the correspondence to various kinds of the seedling-raising boxes and the facilitation of the control, when the corner is pressed. SOLUTION: A pair of right and left front arms 44 and a pair of right and left rear arms 45 whose intermediate parts are rotatably attached are disposed on the front and rear sides of a corner-pressing device 6. A front side guide roller 40 and a rear side guide roller 41 which elastically contact with the upper surface of a seedling-raising box are pivotally mounted on the tips of each front side arm 44 and each rear side arm 45, respectively. The base parts of the front side arms 44 and the rear side arms 45 are arranged so as to thrust each other. An engaging member is disposed on each base part, and a lateral plate engagement member 51 capable of being rotated on a lateral shaft 52 and used for lifting the engaging member is placed above the engaging member. A vertical plate engagement member is formed on the lateral plate engagement member in a L-shaped shape on the front view.  The vertical plate engagement member is brought into contact with a control dial.
Patent JP-H02143600-A (JP)
Title: Method of warning run out of component
Inventor: NAGAE KAZUO
IPC: H05K13/02
Filed: 1988-11-25
Abstract: PURPOSE:To reduce man-hours of an operator and to improve an equipment in operating efficiency by a method wherein the reference value, on which an advance notice of component shortage is announced, is previously set basing on the residues of a roll of component tape, a detector judges that the residues of the roll of component tape is less than the reference value or not comparing the residues with the reference value at the time of mounting components, and gives an advance notice of component shortage. CONSTITUTION:A detecting section 18 is made to face toward a component reel axle 20 to measure the amount of the roll of component tape 21, and the diameter of the roll of component tape 21, on which an advance notice of component shortage is issued, is set in a control section. When the packaging of components starts, the component tape 21 is fed, a component mounting head 13 sucks a component, and the component is mounted. At this point, the component tape 21 is fed, the amount of the roll of component tape 21 of the component reel 19 decreases gradually, and the roll decreases in diameter. The diameter of the roll of component tape 21 is compared with the reference diameter set in the control section, and an advance notice of component shortage is announced. By this setup, when a reference value is once set, an advance notice of component shortage can be reliably announced without any reset or any other adjustments.
Patent JP-H04169901-A (JP)
Title: Production control system
Inventor: MATSUDA KINJI
IPC: G05B19/418
Filed: 1990-11-01
Abstract: PURPOSE:To quickly start an automatic line to start production by supplying a start instruction signal from a collective control part to the control part of each process and making each process operatable on condition of supply of this signal. CONSTITUTION:The automatic line is started or stopped by the operation on an overall board 29. That is, when 'start of the line' is defined as the state that a work is carried into and out of the working area of each automatic machine 25 on condition of the existence of the work and each automatic machine 25 can perform prescribed operation on condition of input of read information from an ID plate, a sequencer 28 which controls each automatic machine goes to the start state after input of the start instruction from the overall board 29 and outputs control information to specify the operation of the automatic machine 25 on condition of read of information from the ID plate 20 and repeats this operation till the input of a stop instruction. Thus, the automatic line consisting of many processes is quickly and surely started.
Patent JP-H02145767-A (JP)
Title: Method and device for cleaning vapor-growth reaction furnace
Inventor: MATSUURA HARUMI
IPC: C23C16/44
Filed: 1988-11-25
Abstract: PURPOSE:To economically, easily, and perfectly clean a reaction furnace in a short time by cleaning the furnace used for the vapor growth of silicon, etc., until the pH of a cleaning liq. reaches a specified value, then cleaning the furnace with the hydrogen peroxide kept at a specified concn., and further cleaning the furnace with pure water. CONSTITUTION:A gaseous mixture of SiH4 and a silicon halide or a germanium halide or a silicon halide is pyrolyzed, and reduced with hydrogen to produce Si or an Si-Ge alloy on a carrier. The reaction furnace body 1 after vapor growth is placed above a cleaning device 2 through a base flange 3. A rotary brush 9 provided with brushes 10 is then rotated by injecting a cleaning liq. from a nozzle 7 to clean off the deposit on the inner wall of the furnace. Water is firstly used as the cleaning liq., and the furnace is cleaned until the pH of the liq. after cleaning reaches 4-7. The furnace is then cleaned using >=2vol.% H2O2. As a result, the polymer firmly attached to the wall is completely decomposed, and removed. The furnace is then cleaned with pure water, and dried. By this method, the inside of the reaction furnace is perfectly cleaned in a short time without the furnace being corroded.
Patent JP-S62152592-A (JP)
Title: Treatment of desulfurized slag washing waste liquid
Inventor: MATSUBARA ITARU
IPC: C21C7/00
Filed: 1985-12-25
Abstract: PURPOSE:To remove efficiently phosphorus component and iron component and purify waste water by utilizing efficiently washing waste liquid and pickling waste solution. CONSTITUTION:In a unit equipped with a desulfurized slag washing waste liquid tank, a pickling waste liquid tank 2, a primary reaction tank 3, a secondary reaction tank 4, a thickener 5, a solid-liquid separation unit 6 and an air diffusing tube 7, the waste liquid A is sent into a primary reaction tank 3 by a pump P1 and controlled to be weak acid less than pH6. The formation of insoluble iron phosphate is carried out by sucking air from the air diffusing tube 7 and agitating. A formed up iron phosphate is extracted by a pump P3. The mixed liquid after phosphorus component being removed is sent gradually into a secondary reaction tank 4 by a pump P4 to be up more than pH6. Bivalent iron ion is exchanged to trivalent iron ion by leading air in from the air diffusing pipe 7 and agitating, and settled Fe(OH)3 is extracted and removed by a pump P5.
Patent JP-H09137158-A (JP)
Title: Fluorescent film and its production
Inventor: HISAMUNE TAKAYUKI
IPC: H01J29/20
Filed: 1995-11-15
Abstract: PROBLEM TO BE SOLVED: To obtain a high-luminance fluorescent film by using a printing ink contg. a europium (II)-activated barium magnesium aluminate phosphor having a specified Blaine specific surface area in forming the film by a thick-film printing method. SOLUTION: A europium (II)-activaterd barium magensium aluminate phosphor having a Blaine specific surface area of 8,000-13,000cm<2> /g is produced by mixing specified amts. of a barium compd. (e.g. barium oxide), a europium compd. (e.g. europium oxide), a magnesium compd. (e.g. magnesium oxide), and an aluminum compd. (e.g. aluminum oxide) together with a flux and baking the resultant mixture in a reducing atmosphere. A printing ink contg. the phosphor is used for forming a fluorescent film on a substrate such as a glass plate by a thick-film printing method. The obtd. fluorescent film is useful as a reflective fluorescent film used esp. for a fluorescent display tube, etc.
Patent JP-H10146079-A (JP)
Title: Motor control circuit
Inventor: ZAIMA HISASHI
IPC: E05F15/10
Filed: 1996-11-08
Abstract: PROBLEM TO BE SOLVED: To easily control the drive of a motor with a simplified circuit structure. SOLUTION: A motor control circuit forms a flip-flop in which a power OFF transistor Q1 becomes OFF (ON) when a power ON transistor Q2 becomes ON (OFF), and also has a capacitor C1 and resistors R1 to R6 for determining the initial condition of the flip-flop. When a switch SW is turned ON and a voltage is applied to the flip-flop, a voltage is applied to the base of the transistor Q2 via current detection resistors R1, R3 to turn ON the transistor. Consequently, a power is fed to a motor M. When the motor M is driven up to the movable range and its rotation is locked, the voltage across the motor current detecting resistor R6 rises and a voltage is applied to the base of the transistor Q1 via an integral circuit consisting of resistor R4 and capacitor C1, thereby turning the transistor Q1 ON to cut off the power to the motor M.
Patent JP-H07140573-A (JP)
Title: Automatic diaphragm for removing unnecessary ray flux of x-ray
Inventor: YOGI TADASHI
IPC: G03B42/02
Filed: 1992-10-09
Abstract: PURPOSE:To simplify handling and to avert the unnecessary exposure to the desired section by advancing this aperture into X-ray fluxes according to the degree of inclination of an X-ray device and automatically limiting the diagonal unnecessary X-ray fluxes. CONSTITUTION:Hatched parts respectively indicate the diagonal unnecessary X-ray flux parts 10 and indicate that the respective diaphragms shield these X-ray flux parts 10. The pendent diaphragms 5, 6 oscillate automatically to a perpendicular position and fluid diaphragms advance to the X-ray flux parts 10 by flowing of flowable materials, thereby respectively shutting off the diagonal unnecessary X-ray fluxes when the diagonal unnecessary X-ray fluxes are generated by inclination of the X-ray device 1. The area of the diagonal unnecessary X-ray fluxes changes according to the degree of inclination of the X-ray device 1 but the oscillations of the pendent diaphragms 5, 6 are increased and the flow range of the flowable materials of the fluid diapnragms toward the vertex direction or shallow step parts at which the materials advance into the X-ray fluxes is expanded, by which the shielding area is automatically changed in correspondence to the changing area of the diagonal unnecessary X-ray fluxes.
Patent JP-H01138111-A (JP)
Title: Vessel made of diamond and production thereof
Inventor: OBATA TATSUO
IPC: C01B31/06
Filed: 1987-11-25
Abstract: PURPOSE:To easily obtain a vessel made of diamond composed of a film of aggregated diamond crystals having specific particle diameter, by applying a CVD diamond film on the surface of a vessel-shaped base material and removing only the base material from the product. CONSTITUTION:A CVD diamond film is formed on the surface of a heat-resistant base having a form of a vessel and the base is removed, e.g., by dissolution to obtain a vessel composed of a thin film of aggregated diamond crystals having particle diameter of 0.1-800mum.
Patent JP-H06153413-A (JP)
Title: Charge controller and charge control method
Inventor: OKUMURA TADASHI
IPC: H02J7/02
Filed: 1992-11-06
Abstract: PURPOSE:To prevent overcharge and besides, display the residual quantity accurately even if the completion of charge can not detected by voltage ripple or temperature change, concerning a charge controller which performs the charge control to a secondary battery. CONSTITUTION:The charge time from charge start to a secondary battery 23 to charge completion is measured actually, and the actual battery capacity is estimated by a substantial capacity computing means 18 from this and the estimated time required for full charge computed based on rated capacity. Moreover, the residual quantity corresponding to the actual battery capacity is computed with a residual quantity computing means 19 and it is displayed.
Patent JP-H07148955-A (JP)
Title: Thermal printing head substrate
Inventor: YOSHIDA YUTAKA
IPC: B41J2/345
Filed: 1993-11-26
Abstract: PURPOSE:To improve the contact of the printing part of a thermal printing head with a platen by suppressing the protuberance caused by the interference of a common wiring pattern with a heating resistor as low as possible while achieving the reduction of a voltage drop. CONSTITUTION:In a thermal printing head substrate 1 wherein a heating resistor 3, a common wiring pattern 5 and a heating control wiring pattern are provided on a material substrate 2 and a common wiring reinforcing layer 10 is formed on the surface of the common wiring pattern 5, the place 11 not forming the common wiring reinforcing layer is allowed to be present at a part where the common wiring pattern 5 interferes with the end part of the heating resistor 3 or the part passing the vicinity of the end part of the heating resistor 3. Pref., a membrane reinforcing layer 14 composed of a conductive metal thinner than the common wiring reinforcing layer is formed to the place 11 not forming the common wiring reinforcing layer.
Patent JP-H08162316-A (JP)
Title: Superconducting magnet apparatus
Inventor: YAZAWA TAKASHI
IPC: B60L13/04
Filed: 1994-11-30
Abstract: PURPOSE: To obtain a superconducting magnet apparatus having a high effect of shielding fluctuating magnetic field of an external portion of an outer tank container. CONSTITUTION: This is a superconducting magnet apparatus comprising a superconducting coil 1 made of wound superconducting wires, an inner tank container 4 for housing a superconducting coil 1 and liquid helium 14 for cooling the superconducting coil, a vacuum outer tank container 5 for housing the inner tank container 4, an adiabatic shield body 6 placed between the inner tank container 4 and the outer tank container 5 for reducing the amount of incoming heat incoming from the outer tank container 5 to inner tank container 4, and a plurality of loop-shaped high-temperature superconducting wires or a plurality of high-temperature superconducting body bulk arranged on the surface of the adiabatic shield body 6 for preventing the application of fluctuating magnetic field from the outer portion of the outer tank container 5 to the inner tank container 4.