baber/WOPTO huggingface dataset:
Patent JP-H09185090-A (JP)
Title: Optical amplifier
Inventor: SUZUKI MIKIYA
IPC: G02F1/35
Filed: 1995-12-28
Abstract: PROBLEM TO BE SOLVED: To improve an amplification characteristic by effectively utilizing excitation light from an optical amplifier. SOLUTION: Excitation light λp projected from an excitation light source 13 is made incident upon an erbium dope optical fiber(EDF) 14 through an wavelength multiplexer (WDM) coupler 12 and absorbed to generate sufficient inversion distribution. When signal light λs is made incident upon the EDF 14 in the incident state of the excitation light λp, The light λs is gradually amplified by induction emission action and the amplified signal light is discharged as an output optical signal λS. When the EDF 14 is sufficiently short against the intensity of the excitation light λp, the excitation light λp may be discharged to the output end of the EDF 14 as remaining excitation light (r).  The light (r) is made incident upon a total reflection film 19 successively through a WDM coupler 15 and a fiber 18 and reflected by the film 19 and the reflected light is returned into the EDF 14 successively through the fiber 18 and the coupler 15, so that the amplification characteristic of the EDF 14 is improved.
Patent JP-H11176586-A (JP)
Title: Discharge lamp glowing device
Inventor: MIKI NOBUKAZU
IPC: H05B41/24
Filed: 1997-12-12
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp glowing device for lighting a discharge lamp while preventing the lowering of lamp voltage at the time of low temperature. SOLUTION: As a discharge lamp L, FL40S/36 is used. A series circuit of a temperature sensitive resistor R0 having a characteristic that resistance thereof is lowered in response to the temperature lowering and a voltage dividing resistor R1 is connected between both ends of a smoothing capacitor C1 . Switching elements Q1 , Q2 are turned on/off each other by the control signal from a drive circuit IC. A comparator CP for comparing the both ends voltage of the resistor R1 with the reference voltage Vref is provided, and the output signal of the comparator CP is input to the drive circuit IC. The both ends voltage of the resistor R0 and the reference voltage Vref are set so as to be equal to each other at -5 deg.C of the peripheral temperature.  When the signal from the comparator CP becomes a high level, the drive circuit IC controls the switching elements Q1 , Q2 so that the oscillation frequency of an inverter circuit comes to close to the resonance frequency.
Patent JP-H09173989-A (JP)
Title: Automatic display device for postal bar code
Inventor: MIMORI MASAHIRO
IPC: B07C3/10
Filed: 1995-12-28
Abstract: PROBLEM TO BE SOLVED: To make it possible to automatically stick postal bar codes to exact places or to print these places with the postal bar codes by recognizing the shapes of letter-cards, specifying the postal bar codes by character recognizing means, etc., and automatically deciding the places where the postal bar codes are displayed by an area dividing means and area ranking means. SOLUTION: The letter-cards 9 are placed in a prescribed position by a positioning means 2 and the shapes of the letter-card 9 are recognized by a shape recognizing means 3. Next, the postal code numbers, etc., on the letter- cards 9 are subjected to character recognition by the character recognizing means 4. The surface regions of the letter-cards 9 are divided by the area dividing means 5 and the areas are ranked to the order appropriate for displaying the postal code number by the area ranking means 6. The areas indicating the postal bar codes are outputted by an area deciding means 7 and the postal bar codes corresponding to the postal code numbers are displayed in the area by a bard code display means 8. As a result, the operation is completely mechanized and the enormous labor and time are lessened.
Patent JP-2000167475-A (JP)
Title: Formation of double-layer coating film
Inventor: NAKAMURA SHIGERU
IPC: B05D7/24
Filed: 1998-12-03
Abstract: PROBLEM TO BE SOLVED: To improve the interlayer adhesion of a double-layer coating film formed by applying a solid color paint and a clear paint on a face to be coated by electrodeposition without providing any intermediate layer. SOLUTION: A solid color paint and a clear paint are successively applied on a material coated with a film formed by electrodeposition to form a double- layer overcoating film. The solid color paint contains a fine aluminum powder and/or a white coated metal powder, and the light transmittance is controlled to <=0.15% at 15 μm cured coating film thickness. Although an anionic or a cationic electrodeposition paint can be used, the cationic paint excellent in corrosion resistance, etc., is preferably used. A well-known cationic electrodeposition paint prepared by mixing a pigment and various additives, as required, with the aq. soln. or dispersion of a cationic high molecular compd. is applicable.
Patent JP-H07172018-A (JP)
Title: Ink ribbon unit
Inventor: KURODA YOSHIMI
IPC: B41J32/00
Filed: 1993-12-17
Abstract: PURPOSE:To improve the attaching convenience of an ink ribbon unit to a main body without resulting any increase of extra cost. CONSTITUTION:A packing case 10 packing an unit 1 is provided with a cut-off window 11 on the front surface and the rear surface of the same to use it both for a ribbon housing for setting an ink ribbon R to a main body whereby packaging can be contrived without accompanying any cost increase.
Patent JP-2001159699-A (JP)
Title: Method and system for treating radioactive waste
Inventor: MATSUO TOSHIAKI
IPC: G21F9/36
Filed: 1999-12-03
Abstract: PROBLEM TO BE SOLVED: To improve the accuracy in the evaluation of the quantity of the radioactivity of vitrified wastes and increase the speed of treatment in the treatment of radioactive wastes. SOLUTION: After the quantity of the radioactivity of the radioactive wastes encased in waste housing canisters 3 is measured by a device 4 for measuring the amount of the radioactivity of the wastes, the volume reduction treatment of them is conducted by melting them with a volume reduction treatment device 6. Following the volume reduction treatment, the molten wastes are transferred from a melt exhaust device 7 and are housed in canisters 8 for stowing the wastes whose volume is reduced. In this state, the quantity of the radioactivity of the wastes is measured by a device 10 for measuring the quantity of the radioactivity of the wastes whose volume is reduced.  In view of the result of the measurement by the devices 4 and 10, subsequently, the canisters 8 where the radioactive wastes are stowed are carried out if the result of the measurement after volume reduction is a prescribed value or lower and approximately coincides with that before volume reduction.
Patent JP-H09298864-A (JP)
Title: A synchronous electrical machine having permanent magnets adapted to operate at constant power over a wide range of speeds
Inventor: FUIRITSUPU MANFU
IPC: H02K1/27
Filed: 1996-12-24
Abstract: PROBLEM TO BE SOLVED: To obtain a compact, highly reliable and very cheap synchronous electrical machine especially adapted to operate at a constant power over a wide speed range. SOLUTION: A rotor 1 of an electrical machine has permanent magnets 2 in its periphery. The stator of the electrical machine forms a polyphase magnetic circuit, and the electrical machine includes means for varying phase angles among its voltages, currents, magnet magnetic fluxes and stator magnetic fluxes. Also, the rotor 1 includes a predetermined number of magnetic-pole pieces 3 to provide between the adjacent magnetic-pole pieces 3 at least one predetermined-width bearing permanent magnets 2 magnetized radially or axially. Further, the substantially radial opposite side surface of the magnetic-pole piece 3 to the adjacent magnetic-pole piece 3 is separated by a predetermined distance 10 from the substantially radial side surface of the adjacent permanent magnet 2 to it.
Patent JP-2001161228-A (JP)
Title: Spool of spinning reel
Inventor: HITOMI YASUHIRO
IPC: A01K89/01
Filed: 1999-12-03
Abstract: PROBLEM TO BE SOLVED: To maintain the strength of a line winding barrel part and a skirt part and reduce the weight of the whole in a spool of a spinning reel. SOLUTION: This spool body 7 of the spinning reel comprises a line winding barrel part 7a and a skirt part 7b attached to the rear end of the line winding barrel part 7a which is mainly provided with a thick-wall line winding part 16 made of a synthetic resin and a bottom part 17 integrally formed with the inner peripheral side of the line winding part 16. The skirt part 7b is made of an aluminum alloy and a cylindrical part 7c and a rear flange part 7d are integrally formed into a thin-wall state by press working.
Patent JP-2001157639-A (JP)
Title: Structure for bathtub with washing place
Inventor: GO YOSHIKAZU
IPC: A47K3/02
Filed: 1999-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a simple connecting structure for a bathtub with a washing place to be easily worked without deterioration in design. SOLUTION: In a bathtub with a washing place divided into a bathtub part and washing place part, a raised part is provided for one side of the washing place part on the side of the bathtub. A flange part to be connected to the bathtub is provided for an upper part of the raised part, and a flange part corresponding to the flange of the raised part of the washing place part is extended lower than the rim of the bathtub and provided for one side of the bathtub part on the side of the washing place. The flange on the side of the bathtub part is connected to the flange on the side of the washing place through the use of a spring. By this constitution, it is possible to provide a bathtub with a washing place of which the connecting work is extremely easily performed without deterioration in design.
Patent JP-H07177203-A (JP)
Title: Telephone device equipped with telephone communication network function
Inventor: BANDO TATSUO
IPC: H04M1/658
Filed: 1993-12-21
Abstract: PURPOSE:To obtain a telephone device which can form the telephone communication network wherein daily telephone communications are systematized. CONSTITUTION:The telephone device equipped with the function of the telephone communication network is provided with an information recording means 5 which stores communication information, an attribute information recording means 13 which stores attribute information including at least information on transfer destination, an attached information recording means 14 which stores information showing the effective time zone of the communication information, a transfer means 3 which automatically transfers the communication information and effective time zone information to the transfer destinations, and a reproducing means 5 which reproduces the communication information only in the effective time zone. Even if a receiver is absent, the communication information is recorded in the telephone device of the receiver and then automatically transferred to a next transfer destination through the communication network. Then receiver after coming home reproduces the recorded communication information to know it.
Patent JP-H02226911-A (JP)
Title: Quasi-random sequence generating circuit
Inventor: PATORITSUKU ANTOWAANU
IPC: H04N7/167
Filed: 1989-12-28
Abstract: PURPOSE: To make a sequence to be hardly deteriorated and to prevent it from being statically a nonrandom characteristic by providing, at least, two basic shift registers, presetting the initial content of the register by an internal key and making them feedback each other through a changing member built in a feedback loop. CONSTITUTION: The output terminal 2 of the register 3 is connected to the input terminal 26 of the register 1 via an AND gate 5, and the output terminal 4 of the register 1 is connected to the input terminal 27 of the register 3. Two registers 33 and 34 are fed back to each other, an output 20 of the register 33 is fed back to an input 7 of that register, and also an output 9 of the register 34 is fed back to that its input 14. A dual stable counter 10 being a nonlinear element is connected to the output terminal 9 of the register 34. A sequence fetched from the register 1 in a linear method is changed by a bit fetched from the intermediate output terminals of two separated registers 33 and 34.
Patent JP-H09157768-A (JP)
Title: Water cooling jacket structure for copper smelting
Inventor: IEMORI NOBUMASA
IPC: C22B15/00
Filed: 1995-12-08
Abstract: PROBLEM TO BE SOLVED: To provide a repairable water cooling jacket having long service life by padding a part on the water cooling jacket structure coming in contact with matte, white matte or slag, with an Ni base metal. SOLUTION: In the water cooling jacket structure 2 used to take out the matte, white matte or slag produced in a copper smelting from a copper smelting furnace or charge into the copper smelting furnace, the part coming in contact with the matte, white matte or slag is padded with Ni or Ni alloy to arrange the padded part 1. By this constitution, the service life of the water cooling jacket is prolonged to >=2 times and also, the reuse by the repair can be executed, and it is unnecessary to dispose the jacket body caused by the partial defect.
Patent JP-H02251537-A (JP)
Title: Extrusion-cast film suitable for label surface material punchable to controlled depth
Inventor: JIYOOJI YUUJIN MORIN
IPC: C08K3/00
Filed: 1989-12-28
Abstract: PURPOSE: To provide a film suitable for a label material obtained by compounding a specified inorg. filler with polypropylene and capable of being punched with a low support jig force.  
     CONSTITUTION: 30-70 pts.wt. of an inorg. filler (B) with a particle size of 0.4-50 μm such as calcium carbonate, a metal oxide, mica, talc or barium sulfate is compounded with 70-30 pts.wt. of a polypropylene homopolymer (A) or a mixture of polypropylene and another olefin polymer such as polyethylene and the obtained compd. is subjected to extrusion casting to obtain the objective film capable of being die-cut in a controlled depth with a support jig force of 120 kg or less and having breaking strength of 20,000 kPa and tensile elongation of 750% or less. 
     COPYRIGHT: (C)1990,JPO
Patent JP-H07180009-A (JP)
Title: Production of high strength aluminum alloy sheet for forming
Inventor: OHORI KOICHI
IPC: C22F1/00
Filed: 1993-12-24
Abstract: PURPOSE:To produce an Al alloy sheet excellent in strength and press formability by subjecting the ingot of an Al-Mg alloy having a specified compsn. to homogenizing treatment, thereafter regulating the reduction of the sheet thickness per pass in rolling in a specified sheet thickness range and executing hot rolling. CONSTITUTION:The ingot of an Al-Mg alloy contg;, by weight, 4.5 to 8% Mg, 0.05 to 0.4% Cu, 0.005 to 0.10% Ti and 0.0001 to 0.01% Be or furthermore contg., for refining recrystallized grains and improving its strength, one or more kinds among 0.1 to 0.6% Zn, 0.05 to O.20% Mn, 0.05 to 0.15% Cr and 0.05 to 0.15% Zr, and the balance Al is subjected to homogenizing treatment by single or two stage heating at 420 to 510 deg.C for 2 to 24 hr to homogenize Mg, Cu or the like segregated in the ingot. Next, hot rolling is started at 450 to 510 deg.C, and a light draft of <=15mm reduction of the sheet thickness per pass is applied in the case of 50 to 150 mm thickness at the inlet of a milling roll of the Al allay ingot at the time of rolling. Thus, the Al alloy sheet with about 5mm thickness free from defects such as ear cracking and excellent in workability and strength can be produced.
Patent JP-H11177526-A (JP)
Title: Spread spectrum communication receiver, spread spectrum communication equipment and spread spectrum communication system
Inventor: HAMAGUCHI YASUHIRO
IPC: H04J13/00
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To obtain the equipment and the system that has a means demodulating a transmission signal without being affected by interference at a receiver side in the case that the receiver side receives a transmission signal being a code spread signal and especially a delaymultiplex signal with an inter-symbol interference asynchronously with the transmitter side. SOLUTION: A received signal is converted into a base band frequency signal by a guadrature demodulator 33 through a frequency conversion circuit 32. I, Q signals after demodulation are converted by A/D converters 34, 35 by using a clock whose frequency is a multiple (n) of a chip rate. The A/D conversion data are converted into two (=n) series of I1, I2 and Q1, Q2 at S/P converters 36, 37 and the data are given to correlation devices 13,14. The correlation outputs are latched by a correlation synchronization circuit signal and given to power measurement circuits 47, 48, from which correlation power signals P1, P2 are outputted. They are compared by a power comparator 49, a selection signal is fed to signal selection circuits 50, 51 as the result and a set of the correlation output data with large power is selected.  A demodulation section 52 demodulates the data by using the data of the selected signal series.
Patent JP-H07181015-A (JP)
Title: Method for calibrating optical pattern measuring machine
Inventor: OGAWA TAKASHI
IPC: G01B11/02
Filed: 1993-12-22
Abstract: PURPOSE:To provide a method for calibrating an optical pattern measuring machine with high accuracy. CONSTITUTION:Scanning is carried out by means of a laser light traversing a correction pattern 10 and the reflected light is detected. The distance between the edges of a pattern is then measured based on the variation in the intensity of light reflected on the upper, intermediate, and lower faces 12a, 12b, 12c at the edge part of the pattern and compared with a sample value. The correction pattern 10 has trapezoidal cross-section enlarging downward at the edge part thereof and the method for calibrating an optical pattern measuring machine is constituted to scan the correction pattern by means of a laser light.
Patent JP-H11179647-A (JP)
Title: Polishing device
Inventor: TSUTSUMI CHISATO
IPC: B24B37/04
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To make possible the setting of a plurality of ring materials in a condition held rotatable by a roller, so as to prevent mutual interference. SOLUTION: A device is provided with a polishing machine 2 rotated by a rotary mechanism, fixed plate 4 having a hold hollow part 5 supported to be inserted in a condition positioned upward of the polishing machine 2 to be constituted as a shape with this hold hollow part 5 combining a plurality of circular hollow parts 7 in a position dislocated from the center of the polishing machine 3, and a turn jig 6 having a hold hollow part 9 fitted to the circular hollow part 7 of the fixed plate 4 in a turnable condition to fit a ring material 8 in the inside turnably. A center position of the hold hollow part 9 of the turn jig 6, from a center position of its peripheral surface, is eccentrically placed.
Patent JP-H11182534-A (JP)
Title: Locating plate structure for internal combustion engine
Inventor: INABA TOSHIYUKI
IPC: F16C17/02
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To provide a locating plate for an internal combustion engine, with an improved lubricating performance. SOLUTION: With a locating plate 23 for locating various types of shafts of an internal combustion engine in the axial direction while journalling the shafts, in an insertion hole 23a of the locating plate 23 journalling a shaft, at least one notch part 23d extending about in the radial direction of the insertion hole is formed. It is desired that the notch part 23d is formed to extend in the direction tangent to the insertion hole 23a and in the opposite direction to the direction of rotation of the shaft. Thus, when splashes of lubricating oil are supplied between the shaft and the locating plate 23, a part of the lubricating oil supplied is accumulated in the notch part 23d. Then, the lubricating oil accumulated in the notch part 23d is caught between the shaft and the locating plate 23 to improve the lubricating performance.
Patent JP-H06193632-A (JP)
Title: Rotating device
Inventor: NAKASEKI TSUGUTO
IPC: B23Q1/00
Filed: 1992-12-25
Abstract: PURPOSE:To provide a rotating device which is not required to use any rolling bearing or bellows on the vacuum side, excellent in durability and corrosion resistance, and able to rotate at a high speed, without generating any dust. CONSTITUTION:A rotor 11 is arranged on the vacuum side divided by a bulkhead, and a ring-like permanent magnet 12b is provided on the upper stage portion of the rotor 11 while a ring-like permanent magnet 12a is provided in an upper casing 19 so as to be faced thereto. And also an electromagnetic yoke 15 is provided on the other side of the rotor 11, while an electromagnet 13 is arranged in the upper casing 19 so as to be faced thereto, thereby the rotor 11 is magnetically supported. A plurality of cylindrical permanent magnets 16a are provided on the other surface of the rotor 11, while the similar permanent magnets 16b are provided on a rotary plate 17 so as to be faced thereto, and they are magnetically coupled together so that the torgue of a motor 18 is transmitted to the rotor 11.
Patent JP-H10169702-A (JP)
Title: Active type vibration control device
Inventor: OZAKI TAKASHI
IPC: F16F15/02
Filed: 1996-12-10
Abstract: PROBLEM TO BE SOLVED: To provide an active, vibration control device which can prevent an acceleration sensor from breaking or a vibration control bed from greatly quaking. SOLUTION: In an active type vibration control device, the disturbance-caused vibration of a vibration control bed 1, on which an optical measuring instrument 4 as an object to be mounted is mounted, is detected by a servo-type acceleration sensor 5, and, based on the values detected, the vibration control bed 1 is controlled so as to restrict the vibration actively. In this case, both a P-wave detecting device 7 as a foreseeing means, which foresees the disturbance before excessive disturbance acts on the vibration control bed 1, and a fixing means, which stops the driving by the active, vibration restricting means, based on the signal from the P-wave detecting device 7 and moreover fixes the vibration control bed 1, are provided.
Patent JP-H11238326-A (JP)
Title: Reproducing device
Inventor: TANAKA SHINICHI
IPC: G11B20/18
Filed: 1998-12-07
Abstract: PROBLEM TO BE SOLVED: To reduce the error correcting probability in the demodulation and to increase the recording density by forming a block unit made to the product code in the manner of adding the prescribed number of parity bits to each row and each column of digital information and recording them while adding the error detecting codes for each sector. SOLUTION: By a modulation circuit 14, one block is formed in such a manner that the prescribed number of parity bits are added to symbol data arrayed in the row direction and column direction to make the product code and also the recording is made on a recording medium 1 for every block by adding the error detecting codes for each sector. By a data control circuit 15, at the time of demodulation, a signal is read from the designated block and accumulated in a buffer memory 16. By an error correcting circuit 17, the signal is read out from the memory 16 and when the error correction is processed, the corrections in the row and column directions are altenately repeated till the error correction is completed.  By this procedure, the burst error is eliminated and the thinning of a protecting layer on the recording medium is attained, then in company therewith, the numerical aperture of an objective lens is made to be larger than the high density recording is attained.