baber/WOPTO huggingface dataset:
Patent JP-H01201324-A (JP)
Title: Polyester copolymer for optical material
Inventor: NAKAO TAKUO
IPC: G02B1/04
Filed: 1988-02-05
Abstract: PURPOSE:To obtain the title copolymer improved in refractive index, Abbe's number, transparency, etc., by constituting it from a specified acid component and a binary diol component. CONSTITUTION:The title polymer copolymer for optical materials is a polyester comprising an acid component comprising naphthalene-2,6-dicarboxylic acid and a glycol component comprising a binary system of 1,4-cyclo hexanedimethanol (A) (usually, one having a trans/cis ratio of 70/30) and ethylene glycol (C) and having an A to B molar ratio of 50/50<=A/B<=82/18 and a refractive index n>1.6 and an Abbe's number nu>30. By using this copolymer, a plastic lens excellent in colorlessness and transparency and low in molding stress can be produced. Said polyester can be produced by using a tran sesterification catalyst such as calcium acetate and a Ge-base polycondensation catalyst such as GeO2.
Patent JP-H01201385-A (JP)
Title: Method of bonding fiber-reinforced plastic
Inventor: UEDA FUMIHIDE
IPC: B29C65/00
Filed: 1988-02-05
Abstract: PURPOSE:To firmly bond either the surfaces of fiber-reinforced plastics to each other or the surface of a fiber-reinforced plastic to the surface of other material, by preliminarily applying a laser beam to the bonding surface when a molded material of a fiber-reinforced plastic is bonded by means of an adhesive. CONSTITUTION:In bonding a molded material of a fiber-reinforced plastic by means of an adhesive, a laser beam is preliminarily applied to the bonding surface to evaporate a base plastic and expose the reinforcing fiber on the surface, thereby forming microscopic unevennesses while maintaining macroscopic smoothness. Since a number of reinforcing fibers are exposed on the bonding surface of the molded material of a fiber-reinforced plastic, an improvement in the adhesive power can be attained by an anchor effect between the reinforcing fiber and the adhesive layer, an increase in the bonding area derived from the exposed surface of the reinforcing fiber, entanglement between reinforcing fibers exposed on both the bonding surfaces, etc. besides adhesive power between the surface of an adherend and an adhesive layer produced during conventional adhesion and deformation restraint due to shrinkage of the adhesive layer.
Patent JP-S56121003-A (JP)
Title: Single-mode transmitting optical fiber and its manufacture
Inventor: MATSUMURA HIROYOSHI
IPC: C03B37/018
Filed: 1980-02-29
Abstract: PURPOSE:To manufacture a single-mode fiber at a high yield by securing single- mode transmission by finding the refractive-index distribution and the relation between the wavelength and core diameter when the refractive index of the core of the optical fiber varies complicatedly. CONSTITUTION:On the internal wall of a quartz tube, etc., which corresponds to a jacket or clad, the clad or core, or a thin film of a material which corresponds to the core is formed by the VCD method and then a solid glass rod or a preform is made by smashing it or by a rod-in tube method. At the stage of this preform, wire drawing ratio (d/a)<2> at which the final fiber is obtained is determined by measuring the refractive-index distribution. In this case, (d) is the size of the core of the preform, and (a) the core diameter of the optical fiber obtained finally. Thus, the optical fiber with optical refractive-index distribution (n) can be converted into that with distribution in an equivalent step and single-mode transmission can be secured.
Patent JP-S58150164-A (JP)
Title: Magnetic tape device
Inventor: KAJINO JIROU
IPC: G11B15/675
Filed: 1983-02-15
Abstract: PURPOSE:To minimize the size of a magnetic tape device, by installing a pair of spur  gears which have the rotating center at the reel turntable side of the drum and are  engaged with each other, and a pair of pull-out arms which rotate in one body and  drive a pair of magnetic tape pull-out members, respectively by rotating in opposite directions. CONSTITUTION:The rotation of a motor 70 is transmitted to a cam 72 through a belt 66 and gear 68, buy a fan-shaped gear 78 does not start to move immediately after the motor 70 starts the rotation. Since a cam follower 76 moves leftward when the rotating angle of the cam 72 exceeds 40 deg., the fan-shaped gear 78 revolves counterclockwise around a shaft 75 and a gear 46 and 48 start clockwise and counterclockwise rotations, respectively through gears 84 and 86. Therefore, an arm 50  which revolves in one body with the gear 46 rotates counter clockwise and a pull-out  block 36 having a pin 54 in a long hole 52 moves in the direction shown by an arrow  A, and, therefore, guide posts 24 and 26 also move in the direction of the arrow A and  pull out a magnetic tape 18 from a cassette 12. Since the pullout mechanism of tapes  can be constituted in a flat body without using the back of the drum, the dimensions  in the depth and thickness of this magnetic tape pull-out mechanism can be reduced,  and thus, the size and thickness of the magnetic tape device can be minimized.
Patent JP-2000221880-A (JP)
Title: Cipher system
Inventor: MATSUO KAZUTO
IPC: G09C1/00
Filed: 1999-02-01
Abstract: PROBLEM TO BE SOLVED: To provide an E1 Gama 1 cipher system whose safety is high on more lots of algebraic systems compared with a cipher system based on a discrete logarithmic problem. SOLUTION: This system is a cipher system based on the discrete logarithmic problem being on an acyclic group and, in the system, elements b1, b2 are selected so that the partial group G1 of a finite Abelian group G which is to be generated by the element b1 of the G on the group G is the same form as that of Z/n1 Z and the partial group G2 of the finite Abelian group G which is to be generated by the element b2 of the group G is the same form as that of Z/n2 Z and the element b1 is not included in the partial group G2 and the element b2 is not included in the partial group G1.  Moreover, when elements a1, a2 are given, the discrete logarithmic problem being on the finite Abelian group G is made to be a problem calculating integers x1, x2 satisfying a1=[x1]b1+[x2]b2, 2=[x2]b1-[x1]b2 (provided [x]b expresses to multiply (b) by (x) and (-b) expresses the inverse element of (b)) and this discrete logarithmic problem is made to be used as one-way function, that is, a trapdoor.
Patent JP-S62182555-A (JP)
Inventor: TOOMASU EMU JINSUMEIYAA
IPC: F25B1/053
Filed: 1987-02-03
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08196762-A (JP)
Title: Presser foot device for lock stitch machine
Inventor: NUMANOI TAKAO
IPC: D05B29/06
Filed: 1995-01-20
Abstract: PURPOSE: To eliminate skipped stitching and needle breaking by providing the device with a split type presser member, whose outer shape roughly fits the seam of U-shaped sewing, and a pressure mechanism for elastically pressurizing each presser member, in the presser foot of a lock stitch machine suitable for the U-shaped sewing of the tip end of a waist band in a pair of pants. CONSTITUTION: This presser foot device 3, which holds a sewing object on a sewing object moving mechanism 14 arranged on a machine bed, is provided with a supporting arch member 19 one end of which is fixed on the feed plate carrier member 14a on the machine bed, four pieces of independent presser member 15-18, and a mechanism 60 for pressurizing pressers. This pressure mechanism 60 is provided with coil springs 54-57 and with arm members 49-52 which are supported so as to oscillate freely through short cylindrical spacers 61, 62 by a pin inserted in the through-hole 19e in the middle part of the supporting arch member 19. Since the needle passes in the circumference of a set of presser members 15-18, the proximity of the place where plural seams are formed is always pressed and supported satisfactorily by presser members 15-18.
Patent JP-H09196865-A (JP)
Title: X-ray fluoroscopic inspection device
Inventor: YAMAGUCHI NORIO
IPC: G01N23/10
Filed: 1996-01-18
Abstract: PROBLEM TO BE SOLVED: To provide an X-ray fluoroscopic inspection device which unlikely generates a dead angle in the fluoroscopic image of an object to be inspected and can certainly find inclusion of foreign matter, etc. SOLUTION: The X-ray fluoroscopic inspection device concerned is composed of an X-ray irradiation device 3 to cast X-rays R approx. conically on an object to be inspected S1, an II (image intensifier) device 5 to detect the two-dimensional image of the X-rays which have penetrated the object, and a monitor 6 to display the two-dimensional image obtained by the II device 5. A passing means 7 to allow the object S1 to rise and fall approx. straight is furnished in the inspection part T between the irradiation device 3 and II device 5, and also a rotating means 8 is provided to rotate the object S1 round a rotary shaft L stretching along the passage W of the object S1.  As a real-time two-dimensional image, foreign matter, etc., existing in a part of the object is photographed at an angle different from the object passing direction, and is photographed at a different angle around the rotary shaft. The photographed foreign matter, etc., is given a sense of far and near owing to the rotation of the object inspected.
Patent JP-H04211457-A (JP)
Title: Trisazo compound and its use
Inventor: OGINO KAZUYA
IPC: C09B31/16
Filed: 1991-02-19
Abstract: PURPOSE:To provide the subject new compound which is a black dye having excellent solubility, dyeing affinity, various fastnesses, etc., and useful as black ink, etc., for the dyeing of fibers having hydroxy group or amino group or for ink-jet recording. CONSTITUTION:A trisazo compound of formula I (Q1 and Q2 are phenyl or naphthyl ; m is 0 or 1). The compound can be produced by diazotizing 1- aminobenzene of formula II, etc., by conventional process, coupling the diazo compound in the form of a free acid to 1-amino-8-naphthol-4-sulfonic acid of formula III, etc., in an aqueous medium in acidic state, coupling the coupling reaction product with tetrazotized 4,4'-diaminobenzanilide-3'-sulfonic acid of formula IV in the form of a free acid and coupling the obtained disazo-diazo compound with a compound of formula V.
Patent JP-S57139975-A (JP)
Title: Manufacture of multi-digit light emitting diode display
Inventor: WASHIMI AKITAKA
IPC: G09F9/33
Filed: 1981-02-20
Abstract: PURPOSE:To improve multi-digit light emitting diode display constructing work efficiency by a method wherein a specific, geometric relationship is estabilished between the distance separating light-emitting diodes and the distance separating through hole provided thin plates. CONSTITUTION:A substrate 1 is provided with light emitting diode mounts 2, wiring bonds 3, through holes 4, and leads 5, and each mount 2 is separated from other mounts by a distance of (a). Each thin metal plate 6 provided with a through hole 7 for light emitting diode is separated from other plates by a distance (b), and is supported by a connecting bar 8. (Here, nb=ma, where n is a natural number larger than a natural number m.) First, in installing the thin plates on the substrate 1, the mount 2 at an end of the mount lineup is aligned upon the thin plate 6 also at the same end of the plate lineup. Next, every mth mount 2 is aligned upon every nth thin plate 6. The coinciding thin plates 6 and mounts 2 are bonded together by an adhesive and then separated from the connecting bar 8. The connecting bar 8 is then moved sidewise to the next and, as described, every nth thin plate 6 is bonded. The same is repeated. After this process, the light emitting diodes are mounted and bonded tight.
Patent JP-2000221134-A (JP)
Title: Light-projecting/receiving apparatus for spectroscopic analysis apparatus
Inventor: IGARASHI KEISUKE
IPC: G01N21/35
Filed: 1999-02-02
Abstract: PROBLEM TO BE SOLVED: To increase the sample penetration distance of a measurement light and receive the light with a strong light intensity by forming a light-projecting part into a ring and projecting the measurement light towards the inside of the ring seen from a light projection direction. SOLUTION: End faces of a plurality of fiber elements 22a, constituting a light-projecting part 21a are arranged into a ring via a distance D3 to the periphery of a light-receiving part 21b set at the detection side of a casing 21d and moreover is inclined by a prescribed irradiation angle (a) toward the inside of the ring. Accordingly, the annular light-projecting part 21a has an outer diameter D1 larger than an outer diameter of a coaxial probe P, as seen from light projection direction, and can project a measurement light towards a direction inclined inwardly by the irradiation angle (a) with respect to a reference line Z parallel to an axial center Y of the light-receiving part 21b.  The measurement light enters the interior of a sample over a wide range, without diffusing to the outside and penetrates the sample over a long distance to enter the light-receiving part 21b in a state of a strong light intensity.
Patent JP-S53110173-A (JP)
Title: Pressure filter
Inventor: KUBODERA KEIZOU
IPC: B01D25/12
Filed: 1977-03-09
Abstract: PURPOSE: Fo obtaining high sludge contant cake and simplifying the washing and replacement of ilter clothes, to pivot filter frames and outer frames so as to be capable of opening and closing with respect to the center core for air chamber of which rubber boards are stretched over the both sides. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H076515-A (JP)
Title: Recording device of video signal and audio signal corresponding to video signal on inclined track on long-sized magnetic recording carrier and recording carrier realized by such device
Inventor: UIRUHERUMUSU YAKOBUSU FUAN GES
IPC: G11B15/46
Filed: 1994-01-27
Abstract: PURPOSE: To provide a device hating a tracking tone generating means for a tracking tone recording part in a track capable of issuing a reference timing for insertion at the time of editing. CONSTITUTION: This device is provided with the format of a signal in the tracking tone recording part TP4 of a continuous tilt track 1 and a signal generator for TP4, TP4 has the connection of many packets Pi, Each packet has a synchronized block SB having a first and a second disparities and an identifying block ID having a third and a fourth disparities. The disparity of the synchronous and identifying blocks in the continuous packet of TP4 is selected so that a running digital sum has a waveform with relatively lower frequency than the bit frequency of a signal in TP4. The first and second disparities has an eqUal value but opposite signs.
Patent JP-S56120687-A (JP)
Title: Cephalosporin derivative and its preparation
Inventor: YOSHIMURA YOSHINOBU
IPC: A61P31/04
Filed: 1980-02-28
Abstract: NEW MATERIAL:A cephalosporin derivative of formula I (R is 2W4C lower alkyl) and its salt.  
     EXAMPLE: 7-( D- 2-Propionyloxy- 2-phenylacetamido )-3- methylcept-3- em-4-carboxlic acid.  
     USE: Antibiotic substance. Effective as a remedy for the infectious diseases of respiratory system and urinary tract caused by bacteria. Active to Gram-positive bacteria, Gram-negative bacteria, and their resistant variants. It has low toxicity and high absorption efficiency through digestive tracts.  
     PROCESS: The compound of formula I can be prepared by reacting a 2-acyloxy-2- phenylacetic acid of formula II with the compound of formula III or its salt by conventional manner. Although both compounds of formula II and formula III can be used in the form of free compounds, it is preferable to use one or both compounds as reactive derivatives for amidation. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H07208617-A (JP)
Title: Butterfly valve
Inventor: YURUGI YOSHINORI
IPC: F16K1/226
Filed: 1994-01-27
Abstract: PURPOSE:To prevent a seat ring from being expanded in the direction of the inside diameter under vacuum using conditions without using any forcible fixing means. CONSTITUTION:A butterfly valve is composed of a valve main body 1 wherein a cylindrical passage penetrates its center part, a disc-like valve body 4 rotatably journalled to the inside of the valve main body 1, and capable of opening/closing the passage, and a seat ring 6 arranged on the inner peripheral surface of the valve main body 1, and made of elastic sealing materials, and the space between, the outer peripheral surface of the seat ring 6 and the inner peripheral surface of the valve main body 1 is connected to the upstream side of a pipeline, so as to introduce fluid pressure on the upstream side, thereby pressures on the inner/outer surfaces of the seat ring 6 are balanced with each other.
Patent JP-H01198468-A (JP)
Title: Thin film forming device
Inventor: OTA WASABURO
IPC: H01L21/203
Filed: 1988-02-04
Abstract: PURPOSE:To form a highly adhesive dense film on a low-temp. substrate by impressing an AC voltage on a grid, and making the electric potential of a counter electrode holding a substrate equivalent to or negative with respect to that of a vaporization source. CONSTITUTION:An active gas or an inert gas is introduced from cylinders 6 and 8 to keep the inside of a vacuum vessel 1 at a specified vacuum, and the vaporization source 13 is heated and vaporized by an electric power source 19. The generated vapor is ionized by the thermoelectron generated by heating a filament 12 with a power source 20. The ion is accelerated by the grid 11 impressed with an AC potential by a power source 27, and having a gap for passing the vapor, and allowed to collide with the substrate 18 held by the counter electrode 10 to form a thin film on the substrate 18. In this thin film forming device, the potential of the electrode 10 is made equivalent to or negative with respect to that of the vaporization source 13 by a DC power source 22. As a result, the ionization of the vapor is accelerated, and a thin film having excellent adhesive strength, smoothness, or crystallinity is formed on the substrate 18 at low temp.
Patent JP-S55117052-A (JP)
Title: Seal structure for cylinder head gasket
Inventor: SUZUKI TAKAYUKI
IPC: F16J15/08
Filed: 1979-03-02
Abstract: PURPOSE:To improve sealing performance and also to prevent distortion of a cylinder liner by a method wherein a surface pressure unevenness to arise at the time of clamping a cylinder block and a cylinder head is prevented, and the seal surface pressure is kept working properly at the flange of a cylinder liner. CONSTITUTION:A metallic grommet 2 in which a coil ring 3 of a metallic elastic material is caught is arranged in a cylinder bore opening sectioned with flange 7 of a cylinder liner 6 and fire guard 8, which is independent from a metallic sheet 1 arranged between its peripheral cylinder head 4 and a cylinder block 5 so as to avoid mutual interference when subjected to a pressure. The coil ring 3 is deformed to function as a gas seal; the base sheet 1 functions as a spacer to absorb a dispersion for production of projection of the cylinder liner 6 and also as a seal against water, oil, etc. other than gas.
Patent JP-S58142288-A (JP)
Title: Time piece with solar battery
Inventor: YAMAUCHI HIROSHI
IPC: G04B19/06
Filed: 1982-02-18
Abstract: PURPOSE:To simplify the manufacture as compared with those forming a rough surface on glass for concealing an electrode from outside with a non-transparent part by arranging a plurality of solar batteries on a substrate within the display surface of a time piece, a slightly transparent member covering the solar batteries between a pointer and a substrate and a non-transparent part shielding  the electrode part. CONSTITUTION:A plurality of solar batteries 5 are arranged on the surface of a substrate. Adjacent solar batteries 5 are connected electrically with a lead wire. A slightly transparent body 7 of a synthetic resin such as acrylics which is so  low in the friction coefficient as to make a smooth surface is provided on the  surface of the solar batteries 5 to protect a photo detecting surface thereof 5.  On the slightly transparent body 7, a non-transparent part 8 is provided by printing or the like with a shape roughly corresponding to the electrode to conceal  the electrode comprising an electrode terminal and a lead wire of adjacent solar  batteries. A pattern of the non-transparent part 8 corresponding to the electrode  is formed in the area smaller than the light receiving surface of one of the solar  batteries 5.
Patent JP-H10204289-A (JP)
Title: Mixture of polymer containing polyamide block and copolymer containing vinyl aromatic unit and anhydride unit
Inventor: DENIS MERO
IPC: C08L77/00
Filed: 1998-01-22
Abstract: PROBLEM TO BE SOLVED: To obtain the subject mixture capable of preventing unstability of a film in a roll end part of a casting apparatus, by compounding a polymer containing a polyamide block with a specific copolymer so as to have a specific melt flow index. SOLUTION: This mixture comprises (A) 99-92 pts.wt. of a polymer composed of a polyamide block such as polyamide 6 or polyamide 12 and a polyether block composed of a polyethylene glycol and a polytetramethylene block and (B) 1-8 pts.wt. of a copolymer which is a styrene/maleic anhydride copolymer that may be esterified with an alcohol, neutralized with a base or imidated with an amine or ammonia and contains an aromatic vinyl unit and an unsaturated carboxylic acid anhydride unit.
Patent JP-S61190452-A (JP)
Inventor: SHIBAZAKI HIROSHI
IPC: B65D41/34
Filed: 1985-02-12
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S53111946-A (JP)
Title: Automotive humidifier
Inventor: TSUCHIDA MAKOTO
IPC: B60H3/02
Filed: 1977-03-08
Abstract: PURPOSE:To prohibit to atomize oils mixed with humidifying water by providing a feed water pump and an atomizing chamber on the midway of a feed pipe of the water and a float switch ligher in specific weight than water and heavier than oils within a feed water tank.
Patent JP-H08221028-A (JP)
Title: Cfl tube lighting control device
Inventor: MORIOKA SHIZUO
IPC: G09G3/36
Filed: 1995-02-14
Abstract: PURPOSE: To reduce the variation in luminance owing to production variance or difference in quality, etc., of a CFL tube by making power consumption in the CFL tube constant. CONSTITUTION: The gain of an amplifier A2 in a current detecting circuit is changed when an output voltage value of a DC/DC converter is larger than a fixed value, and is smaller than this value, thus obtaining two voltage-current characteristics. Consequently, the voltage-current characteristics can be approximate to a characteristic of VE×I=W (W = a constant value), and hence the power consumption in the CFL tube is controllable to be constant.
Patent JP-2000219455-A (JP)
Title: Hydraulic elevator device
Inventor: SHIDARA NOBUTAKA
IPC: F15B15/14
Filed: 1999-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a hydraulic elevator device dispensing with an oil tank. SOLUTION: This hydraulic elevator device provided with a hydraulic jack 5 erected to slide a plunger 4 formed in hollow shape in a cylinder 3, is constituted to move up a car 6 by force-feeding operating oil into the cylinder 3 by a pump 8 to push the bottom part of the plunger 4 upward. The device is also provided with a hole 4A provided at the upper part of the plunger 4; hoses 9, 9A fitted between the hole 4A and the pump 8 and movable in association with the ascent/descent of the car 6; and oil feeding control means 10, 11 for reciprocating the hydraulic oil between the plunger 4 and the cylinder 3 according to ascent/descent commands of the car 6.
Patent JP-S53110764-A (JP)
Title: Heat sensitive nut
Inventor: MIYAMOTO TAISUKE
IPC: F16B37/00
Filed: 1977-03-07
Abstract: PURPOSE: To scheme out slack prevention under heat influence by making it to be a bi-metal structure forming a sleeve in possession of slits in the circumferential direction, in a nut to be used on the spot subject to heat and vibration (around an automotive engine). 
     COPYRIGHT: (C)1978,JPO&Japio