baber/WOPTO huggingface dataset:
Patent JP-H04281231-A (JP)
Title: Light focusing optical system
Inventor: ANDO HIDEO
IPC: G11B7/1362
Filed: 1990-11-30
Abstract: PURPOSE:To improve the storage density by converging the laser beam on the optical disk smaller by changing one characteristic of the light beam divided into two and synthesizing the light beam again. CONSTITUTION:A laser beam 3 having an equiphase surface is made to reflect on a polarizing beam splitter surface 14 and to converge on an optical disk 18 with an objective lens 7. When the laser beam 3 is made to reflect in a step having the height h of an optical characteristic change means 57, a deviation by distance d occurs on the phase surface of the beam 3. When the two beam are superposed on the optical disk 18 and the phase is shifted by lambda/2, the amplitudes of the optical beam are interfered with each other to cancel with each other. As a result, the peripheral part of the beam is eliminated and the converged beam spot being narrower in width than conventional is formed.
Patent JP-H03201433-A (JP)
Title: Sige mixed crystal-si or ge-si selective etchant
Inventor: KOYAMA KAZUHISA
IPC: H01L21/308
Filed: 1989-12-28
Abstract: PURPOSE:To enhance the selectivity not etching Ge, SiGe mixed crystal but etching Si only by a method wherein an etchant mixed with KOH : K2CrO7 : isopropyl alcohol : H2O is used. CONSTITUTION:An Si (100) substrate whereon Si subjected to molecular beam epitaxy, the Si (100) substrate whereon an Si1-xGex mixed crystal is obtained by molecular beam epitaxy and the other Ge (111) substrate are used. Next, an oxide film is patterned on said three kinds of substrates. Next, the substrates partially covered with an SiO2 film are etched away in an etchant mixed with KOH, K2CrO7, isopropyl alcohol, H2O. At this time, the mix ratio shall be KOH: 300g, K2CrO7: 12g, isopropyl alcohol: 300ml, H2O: 1200ml. Later, the SiO2 film is removed using a buffer fluoric acid. Consequently, Si is etched, Ge is not etched while in the SiGe mixed crystal, not exceeding 1/20 of Si only is etched away.
Patent JP-2001149812-A (JP)
Title: Apparatus for recovery of magnetic metal chip
Inventor: IKUNO ITSUO
IPC: B23Q11/00
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus wherein chips can be smoothly and efficiently attracted, peeled off and delivered at a low cost by a light-weighted structure in the apparatus for recovering magnetic metal on a material surface by attraction with a magnetic roll. SOLUTION: A round bar magnet having radially a magnetizing direction is arranged coaxially in a fixed nonmagnetic external cylinder, and lines of magnetic force going in and out from adjacent different magnetic poles are moved around magnetic metal chips, iron powder, rust, or the like, on a material surface by rotatively driving the round bar magnet. Thereby, attraction of the magnetic metal chips on the material surface is made easy, and the attracted chips, or the like, are transported along a peripheral direction of the nonmagnetic external cylinder. For the chips on a high temperature material, a cooling medium is forced to be circulated between the round bar magnet and the nonmagnetic external cylinder to cool both, thereby, enabling to treat the chips.  Further, by constituting a spiral guide groove or guide wall on a surface of the nonmagnetic external cylinder, the chips are enabled to be conveyed in the axial direction of the round bar magnet.
Patent JP-2001120895-A (JP)
Title: Footgear rain cover with handle
Inventor: NAGAI KINUKO
IPC: D06F57/00
Filed: 1999-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a footgear rain cover capable of putting and removing a rain cover on and from garden sandals or footgear in a drying place, veranda, or the like, as in the standing posture. SOLUTION: A handle 3 having a length sufficient for an adult to operate as in the standing posture is vertically provided on about the upper center of a cover 1 of an optional shape enclosing the periphery and the upper part through a handle receiver 2.
Patent JP-H03202856-A (JP)
Title: Toner for developing electrostatic charge image
Inventor: YASUNO MASAHIRO
IPC: G03G9/08
Filed: 1989-12-29
Abstract: PURPOSE:To accelerate the start of electrification of a positively chargeable toner in a high-speed machine, to stabilize the chargeability of the toner and to improve the aggregation resistance by adding a specified electrification controlling agent. CONSTITUTION:This toner is composed essentially of a colorant, a thermoplastic resin such as styrene-acrylic resin, an electrification controlling agent selected among compds. represented by formulae I-VI and nonmagnetic inorg. fine particles such as hydrophobic silica. In the formulae I-VI, each of R1-R6 and R10-R14 is H, alkyl, etc., M is Zn, Fe, etc., in the formula I and Zn, Cr, etc., in the formula II, X is halogen or an ionic residue, n1 2, 4 or 6, R7 is 8-30C alkyl, each of R8 and R9 is H, lower alkyl, etc., n2 is an integer of >=1, each of R15 and R16 is H, alkyl, etc., and R17 is alkyl, aryl, etc.
Patent JP-2001156578-A (JP)
Title: Surface acoustic wave device
Inventor: NIWA TETSUO
IPC: H03H9/64
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a surface acoustic wave device that distributes spurious radiation by high order lateral modes even when surface acoustic wave propagation sections B, C are longitudinally coupled in multi-stages and prevents deterioration in an insertion loss for a pass band by preventing the 1st order fundamental mode from being suppressed. SOLUTION: In the surface acoustic wave device A where a piezoelectric substrate 1, input interdigital electrodes 2, 6 and output interdigital electrodes 3, 7 are arranged, and each length of dummy electrodes 2c, 3c, 6c, 7c of the input/output interdigital electrodes 2, 3, 6, 7 is selected to be different in each of the surface acoustic wave propagation sections B, C.
Patent JP-H10181659-A (JP)
Title: Running-wind streamlining device in vehicle such as motorcycle
Inventor: SUZUKI HITOSHI
IPC: B62J17/00
Filed: 1996-12-20
Abstract: PROBLEM TO BE SOLVED: To provide an icing protective structure of low running resistance. SOLUTION: In a motorcycle, etc., provided with an engine, a fuel tank 3 disposed above it, and a carburetor disposed on the back of a cylinder part of the engine, a stiffener pale 65 and a streamlining plate 66 are disposed at a position to close a front part of a space above the engine formed between an upper part of the cylinder part and a bottom part of the fuel tank to be supported between a right and a left down frames 11. The streamlining plate 66 is tightened with a horn 56, and it is provided with a louver to introduce running with W to the cylinder part while streamlining its flow.
Patent JP-2000172942-A (JP)
Title: Display device for communication state of controller
Inventor: SUZUKI MASATOSHI
IPC: G07F17/00
Filed: 1998-12-01
Abstract: PROBLEM TO BE SOLVED: To make easily specifiable a fault which has occurred in the communication line between a controller at each floor of a hotel management system and refrigerators within the jurisdiction of this controller. SOLUTION: This communication state display device is provided for a controller 30-j for hotel management system which issues prescribed commands to each refrigerator in a prescribed order to gather prescribed information on the refrigerator and controls the refrigerator in accordance with the indication of a system controller. A display part which has transmission display elements and reception display elements for system A, B, C and D of refrigerators respectively is provided for the device and only transmission display elements of systems which are in the middle of transmission are lit, and only reception display elements of systems which are in the middle of reception are lit.
Patent JP-H11159141-A (JP)
Title: Reinforced-net finishing-setting-up method for placing concrete by using half-mesh material
Inventor: OBARA YOSHIHIRO
IPC: E04C5/04
Filed: 1997-11-26
Abstract: PROBLEM TO BE SOLVED: To provide a finishing-setting-up method for a reinforced net for placing concrete, in which the wasting of reinforcing bars for bar arrangement is avoided extremely and the finishing-setting-up works for the reinforcing bars are conducted rapidly and simply. SOLUTION: The reinforced nets for placing concrete in plane sections such as the slabs, walls, eaves, fence, etc., of a building made of reinforced concrete are finishing-set up. A fixed number of reinforcing bars 1a for bar arrangement are disposed in approximately parallel, and the half mesh materials 1a formed by temporary fixing by at least two bars 12a combined in the direction approximately crossed at right angles with these reinforcing bars are arranged in one layer at regular intervals 12 at that time. A fixed number of half-mesh materials 1b are superposed on one side of the layer so that the reinforcing bars 11b for the bar arrangement are crossed with the reinforcing bars 11a for bar arrangement in the first layer, these crossed sections are fixed properly, and reinforcing bars 11a, 11b for bar arrangement are combined reticulately.
Patent JP-H03202569-A (JP)
Title: Entering and leaving control system for automobile in parking lot
Inventor: GOTANDA MOTOHIRO
IPC: G02B27/02
Filed: 1989-12-29
Abstract: PURPOSE:To make it possible to prevent automobiles from accidents caused by knocking them into each other as they are passed by providing light to spotlight each automobile and mirrors to reflect the opposed automobile when sensors provided to lanes bending ro crossing in the direction of a right angle are operated within a specific time. CONSTITUTION:Sensors 14A, 14B and 13A-13F detecting runs of both automobiles 1A and 1B are provided to lanes 2A-2C bending or crossing in the direction of a right angle. After that, lights 12A-12F to spotlight each of both automobiles 1A and 1B are provided to corners of the lane 2A-2C only when the sensors 14A, 14B and 13A-13F are respectively operated within a specific time. In addition, mirrors 11A-11D are provided to reflect the reflections of the automobile 1A and 1B spotlighted by the use of the lights 12A-12F so that drivers of the automobiles 1B and 1A opposed to each other can see each reflection of automobiles.
Patent JP-2000174072-A (JP)
Title: Wiring board and manufacture thereof
Inventor: KURITA HIDEYUKI
IPC: H01L21/60
Filed: 1998-12-02
Abstract: PROBLEM TO BE SOLVED: To bond an IC chip to a wiring board at a high connection reliability when the IC chip is mounted on the wiring board. SOLUTION: A wiring board 10 has a structure having an insulation layer 2 on a conductive layer 1 and an adhesive layer 3 thereon. The adhesive layer 3 and the insulation layer 2 have holes A extending to the conductive layer 1 with metal plugs 4 formed in the holes A by the electroplating method. The top ends of the metal plugs 4 form metal bumps 5 protrudent from the adhesive layer 3. The metal bump 5 surface is treated as a rough surface.
Patent JP-2000158323-A (JP)
Title: Flat surface grinding device
Inventor: YAMAGUCHI YUKIO
IPC: B24B53/017
Filed: 1998-12-02
Abstract: PROBLEM TO BE SOLVED: To obtain a high flatness easily and carry out a flat surface grinding with a high precision, on the grinding surface of a grinding surface plate. SOLUTION: As a correction tool 76 is rotated and driven around the axis center vertical for the grinding surface and the rotary correction device 74 provided with the correction tool 76 is mounted on a longitudinal guide member 70 provided on a frame 12 parallelly with the grinding surface in the upperside of the grinding surface plate and guided thereby, the escape of the correction tool 76 is not generated and the cutting ability for cutting flatly is increased and the sufficient shape correction ability is obtained.  As the grinding surface plate is supported directly and turnably by the bearing 16 (rotary support device) provided on the frame 12, the deformation of the surface shape of the grinding surface plate between the time when the surface shape of the grinding surface plate is measured and the grinding term in which the adhering plate (holding member) for holding a work and the weight for adding the load thereto are placed on the grinding surface plate is minimized and the grinding surface at the grinding time is formed in a sufficiently flat surface shape.
Patent JP-2001160957-A (JP)
Title: Transmitter and receiver for cable television system
Inventor: NODA TSUTOMU
IPC: H04N7/081
Filed: 1999-12-02
Abstract: PROBLEM TO BE SOLVED: To provide a transmitter and a receiver, that relieves a load of operations of a velocity converter and the receiver so as to fully, bring out the performance of the receiver and the velocity converter by eliminating the need for re-description of PCR information in velocity conversion of a transport stream(TS), in the case of transmitting a BS digital broadcast having a plurality of transport streams through a CATV transmission line. SOLUTION: This transmitter is provided with a velocity conversion means that outputs a transport stream, on which null packets for transmission data velocity matching are multiplexed, in order to uniformize digital data of a transport stream form in time series.
Patent JP-H03204274-A (JP)
Title: Color picture transmission method
Inventor: TAKAOKA MAKOTO
IPC: H04N1/46
Filed: 1989-12-29
Abstract: PURPOSE:To send information including a color picture efficiently by sending sequentially a data of a color picture part, a data of a binary picture part and a location of at least one of the two picture parts. CONSTITUTION:The method is a method sending a color picture comprising a color picture part and a binary picture part and provided with a color picture memory 117 and a black/white picture memory 123, and a data of the color picture part, a data of the binary picture part and at least one position of the two picture parts are sent sequentially. Then a color original is once read by an RGB scanner 101, the binary picture part and the color picture part are separated and sent respectively separately. Thus, the data of the color picture and the character data are compressed respectively efficiently and the transmission time is reduced.
Patent JP-2000173071-A (JP)
Title: Information reproducing apparatus and information recording apparatus
Inventor: KIKITSU SATORU
IPC: G11B11/10
Filed: 1998-12-02
Abstract: PROBLEM TO BE SOLVED: To enable high density information recording/reproducing operation which is impossible in the magnetic recording system and the optical recording system of the related art. SOLUTION: This information recording/reproducing apparatus comprises a recording layer 11 consisting of a material for recording information by changing optical property, a probe 16 provided opposing to a recording layer, a means 10 for inputting a light beam 13 to the recording layer and an element 14 for detecting the optical beam 15 reflected from the recording layer, wherein the distance between the recording layer 11 and probe 16 is smaller than the wavelength of incident optical beam and the incident light beam 16 is incident to the recording layer by satisfying the condition of the total reflection.
Patent JP-H09183533-A (JP)
Title: Paper feed roller
Inventor: TSUDA YOSHINORI
IPC: B41J13/076
Filed: 1995-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a carrying roller having friction coefficient equivalent to that of polished one without polishing a rubber roller by forming a pattern groove on the surface of a rubber roller inclining against the rotating direction, and forming the groove depth to be over a specific value. SOLUTION: A pattern groove 13 inclined at about 60 deg. against the rotating direction 12 is formed on the surface 11 of a rubber roller 10. This pattern groove 13 is formed by integratedly molding together with manufacture of the rubber roller 10 or by embossing and the like, so as to form lozenge-shaped contact surfaces by crossing the grooves to each other. The depth of the groove 13 must be over about 50μ, usually over 0.1mm, and favorably about 200μ is appropriate at considering durability from the abrasion resistance of the roller. This pattern grooves 13 are crossed at about 60 deg. inclination against the rotating direction, but the angle is properly changed according to the peripheral speed of the roller 10. Namely, the higher the peripheral speed is, the smaller the inclination is, and the slower the speed is, the larger the inclination is.
Patent JP-H06177718-A (JP)
Title: Emitter coupled logic circuit
Inventor: KATAKURA MASAYUKI
IPC: H03K3/2897
Filed: 1992-11-30
Abstract: PURPOSE:To generate a small hysteresis characteristic stably through simple configuration by allowing a differential input circuit to supply a current respectively to two sets of current mirror circuits connected in crossing and adjusting a current gain of 1st and 2nd current sources. CONSTITUTION:Suppose that a current I0+DELTAi outputted from a 1st current output terminal of a differential input circuit 11 is larger than a prescribed multiple of a current I0-DELTAi outputted from a 2nd current output terminal, then a 1st current source 12 is operated and the operation of a 2nd current source 13 is stopped. When the currents I0-DELTAi is larger than a prescribed multiple of the I0+DELTAi, the operation of the current source 12 is stopped and the current source 13 is operated. Thus, a voltage having a hysteresis in response to the current gain of the 1st and 2nd current sources 12, 13 is extracted respectively from the 1st and 2nd current output terminals. The current gain of the current sources 12, 13 is adjusted and a small hysteresis characteristic is stably generated through simple configuration.
Patent JP-H07163285-A (JP)
Title: Method for removing weed and weeder for carrying out the same method
Inventor: HARA WAKABA
IPC: A01M21/04
Filed: 1993-12-15
Abstract: PURPOSE:To simply remove weeds completely without using a herbicide by spraying and injecting a high-temperature liquid such as hot water to roots of weeds to necrotize cells of root part. CONSTITUTION:A high-temperature spray liquid such as hot water or vegetable heated water is injected to roots of weeds and cells of weed part are necrotized to wither the whole weeds. To be concrete, for example, a burner 2 of a weeder is ignited and as a waste edible oil in a spray liquid tank 3 is heated to 200 deg.C a hand truck 1 is moved near to weeds. Then a spray tube 8 is positioned right above the weeds, a handle 1a is pushed down and the spray tube 8 is thrust from roots of weeds into underground roots. Successively, a motor M is started and a cam push type piston 6 is operated to vigorously inject the heated waste edible oil, sent from a discharge outlet 4a of a spray liquid tank 4 to a vertical cylinder 7, from the spray tube 8 into roots or underground roots.
Patent JP-H10185126-A (JP)
Title: Burner element for surface combustion burner
Inventor: IHARA HIROHIKO
IPC: F23D14/16
Filed: 1996-12-24
Abstract: PROBLEM TO BE SOLVED: To obtain excellent heat resistance and durability by forming a plate of heat resistant allayed metal foam of a material opened with a plurality of burner ports each having a diameter of a specific size range, thereby stabilizing a flame and reducing NOx. SOLUTION: The burner element 7 is formed of a material obtained by heat resistant alloying (adding Cr, Al by thermal diffusion penetration) a plate of metal foam. Burner ports 7a each having a diameter of 0.5 to 2.0mm are opened at an interval of 2.5 to 10.0mm at the plate, and the plate is cut in necessary shape and size to the element 7. Thus, the thus formed element 7 has less irregularity of pore size, pore shape and pore distribution as compared with metal nonwoven fabric, and hence combustion is stabilized and NOx generating amount is reduced even if a method of enhancing gas and air supply pressures is not used. Accordingly, the surface combustion burner having low environmental pollution, a compact structure, easy handling, and excellent heat resistance, durability can be obtained by a low cost.
Patent JP-H05155249-A (JP)
Title: Connecting method for molding
Inventor: TSUJIGUCHI SHOICHI
IPC: B60J1/18
Filed: 1991-12-01
Abstract: PURPOSE:To prevent a lace from peeling off at a joined face by buriedly providing the backside of a connected loop-shaped lace with a highly rigid insert striding across a gap between the ends of the lace to make the deformation of the lace at connected spot difficult and to minimize bending stress at the above spot. CONSTITUTION:In producing a loop-shaped lace 2 formed by uniting a leg part 2b having a L-shaped section with the backside of a main body 2a, a long extrusion molding member is cut to fixed length, and connecting ends 2c, 2c are placed mutually opposite with an injection molding gap S kept between them to form the extrusion molding member into a loop-shape for molding an injection molding part 5 in a gap part. In this case, the backside legs 2b are notched from their ends connected to the main body 2a in each longitudinal direction to form notched parts 6, 6, and an insert 4 which is somewhat shorter than the length Y of the two notched parts 6, 6 and the gap S added to each other and has thickness (t) thiner than the thickess T of the leg part 2b is then buriedly provided in the injection molding part 5.
Patent JP-H06228766-A (JP)
Title: Method of forming phosphate film
Inventor: HAUFFE DIETER
IPC: C23C22/16
Filed: 1993-12-17
Abstract: PURPOSE: To provide a method for forming a phosphate coating which is inexpensive and easy in execution and maintenance and inspection by bringing an aq. phosphating soln. contg. specific amts. of magnesium, phosphoric acid radical and accelerator into contact with the metal surface of iron or steel.  
     CONSTITUTION: The phosphate coating is formed on the metal surface of the iron or steel by using the aq. phosphating soln. which is composed of magnesium phosphate as a chief material and contains the accelerator. The magnesium is, thereupon, incorporated at 0.2 to 4 g/l, the phosphoric acid radical (in terms of P 2 O 5 ) at 1 to 20 g/l and peroxide as the accelerator into the aq. phosphating soln. and an inorg. compd. which cannot be precipitated by calcium hydroxide in a neutral or alkaline region is not included therein. Such aq. phosphating soln. is brought into contact with the metal surface. As a result, the need for a costly waste water treatment may be eliminated. 
     COPYRIGHT: (C)1994,JPO
Patent JP-H10191500-A (JP)
Title: Stereophonic signal phase inversion detector
Inventor: UENO KATSUHIKO
IPC: H04S1/00
Filed: 1996-12-25
Abstract: PROBLEM TO BE SOLVED: To provide a stereophonic signal phase inversion detector by which a broadcast defect is prevented, SOLUTION: An adder circuit 3 adds a left channel audio signal from a left channel audio signal input terminal 1 and a right channel audio signal from a right channel audio signal input terminal 2. An amplitude detection circuit 4 detects an amplitude level of the left channel audio signal, an amplitude detection circuit 5 detects an amplitude level of the sum signal of the adder circuit 3, and an amplitude detection circuit 6 detects an amplitude level of the right channel audio signal. A comparator circuit 7 compares a detection level of the amplitude detection circuit 4 with a detection level of the amplitude detection circuit 5, and a comparator circuit 8 compares a detection level of the amplitude detection circuit 5 with a detection level of the amplitude detection circuit 6.  An OR circuit 9 provides an output of a phase inversion detection signal to a phase inversion detection signal output terminal 10 when a signal is outputted from either of the comparator circuits 7, 8.