baber/WOPTO huggingface dataset:
Patent JP-S57206989-A (JP)
Title: Optical character reader
Inventor: MASAKI HIDEO
IPC: G06K9/03
Filed: 1981-06-15
Abstract: PURPOSE:To obtain the resemblance with high accuracy between a character pattern to be recognized and a reference character pattern, by deflecting the mutual position of these character patterns to each other and then comparing plural states of deflection with each other. CONSTITUTION:An optical character reader includes a photoelectric converting part 1, a chopping memory 2, a character recognizing part 9 and an answer output circuit 8. The 1-character pattern is stored in a pattern memory 3. A position shifting circuit 5 feeds plural types of position information having the center position shifted with a length of several times as much as the dot space to the memory 3. The memory 3 converts the position information into a pattern obtained by shifting the center position of the 1-character pattern according to each position information and then feeds the pattern to a character recognizing circuit 7. The circuit 7 compares a prescribed reference character pattern with each position-shift pattern to obtain the resemblance between them. The circuit 8 compares each obtained resemblance with the prescribed value to decide the accuracy of resemblance.
Patent JP-S5617865-A (JP)
Title: Guide roll for wire
Inventor: KOKITA HIDEO
IPC: B65H57/14
Filed: 1979-07-19
Abstract: PURPOSE: To improve drain of a wire by blasting air through guide holes from inside of surface layer of a hollow guide roll.  
     CONSTITUTION: A hollow guide roll 1 for a wire is provided with a guide groove 2 which is provided on the bottom with a plurality of air ports 4 communicating to a hollow portion 3. Compressed air is introduced from an air introducing pipe 6 provided on one end of a shaft 5 into the hollow portion 3 and jetted from air ports 4 to scatter water (or solution) attached to filament 11 and the guide roll 1 and dry the filament 11. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H02274360-A (JP)
Title: Molten metal pressurized casting method
Inventor: YASUMATSU KANEO
IPC: B22D18/02
Filed: 1989-04-12
Abstract: PURPOSE:To prevent deterioration of casting surface at thin part by pressurizing and filling up molten metal into casting cavity in a metallic mold with a plunger while the molten metal holds such fluidity that this can flow into the thin part in the casting cavity. CONSTITUTION:The molten metal is poured into a part of the casting cavity 6 and a part of molten metal basin part 4 as remaining unfilling part from a molten metal receiving hole 2 in the metallic mold 1 through a sprue 3. Then, while the molten metal 9 holds such fluidity that this can flow into the thin part 7 in the casting cavity 6, a plunger 5 is advanced. Further, the molten metal 9 is pressurized and filled up into the casting cavity 6 in the metallic mold. Therefore, the sufficient pressure of the molten metal is applied even to the thin part in the casting and it is eliminated that the casting surface at the thin part is deteriorated.
Patent JP-S5719632-A (JP)
Title: Integrating calorimeter
Inventor: YOSHIIKE JIYUNICHI
IPC: G01K17/08
Filed: 1980-07-04
Abstract: PURPOSE:To countervail the zero drift of a temperature difference and to improve precision, by a method wherein temperature measuring resistors are individually mounted at an inlet and an outlet of a device in which fluid, such as water, is used as a thermal medium, and a constant-current circuit and an amplifier are commonly used for temperature measurement at an inlet side and an outlet side. CONSTITUTION:In an integrating calorimeter, a constant-current circuit 5 and sample hold circuits 11, 12 are mounted. The constant-current circuit 5 is connected through analogue switches 3 and 4, acting as an ON, OFF switch, to an inlet temperature measuring resistor 1 and an outlet temperature measuring resistor 2 that are positioned in parallel to an inlet and an outlet of a device wherein fluid, such as water, is used as a medium. The sample hold circuits 11 and 12 conduct operations to sample and hold electric potentials V1 and V2, generated at the inlet temperature measuring resistor 1 and the outlet temperature measuring resistor 2, through analogue switches 6 and 7, acting as the ON, OFF swtich, and an amplifier 8. The constant-current circuit 5 and the amplifier 8 are commonly used for measuring a temperature at an inlet side and an outlet side, whereby this permits countervailing of the zero drift of temperature difference and enables to perform a high-stable and high-precise measurement.
Patent JP-H02270887-A (JP)
Title: Organosilicon compound and production thereof
Inventor: YOSHIOKA HIROSUKE
IPC: C07F7/12
Filed: 1989-04-12
Abstract: NEW MATERIAL:A hydroxyalkylsilane compound expressed by formula I [R<1> and R<2> represent H, halogen, -OCH3, -OCHF2, -OCF3, (halogen-substituted)phenyl, (halogen-substituted)phenoxy, -CF3 or 1-4C alkyl; n is 3-7]. EXAMPLE:4-Hydroxybutyl-4-chlorophenylchloromethyl-methylsilane. USE:An intermediate for synthesis of a physiologically active substance such as medicines, agricultural chemicals, etc., an intermediate for producing building blocks, an antioxidant, a surface treating agent, an adhesion promoting agent, a bio-controlling agent, etc. PREPARATION:The hydroxy group of a haloalcohol expressed by formula II (X represents halogen) is protected with a protecting group, converted into a Grignard reagent, which is then reacted with a halosilane or alkoxysilane expressed by formula III (Y represents halogen or 1-4C alkoxy) and the protecting group is eliminated from the product.
Patent JP-H04321898-A (JP)
Title: Method for building bottom plate of cryostat
Inventor: KASHIMA HIDETOSHI
IPC: F17C13/08
Filed: 1991-04-23
Abstract: PURPOSE:To achieve both reliability of strength and safety of execution by enabling a bottom plate of a cryostat to be welded and subjected to radiographic inspection without lifting and lowering the bottom plate. CONSTITUTION:A cryostate is provided on the bottom cooling material 3 with a recessed groove 3a, and the most part of bottom plate constituting members 1, 2 previously shaped into an elongated rectangle are welded on the bottom cooling material 3. The bottom plate blocks themselves welded into a large block after the completion of inspection are disposed such that the welding line is located on the recessed groove 3a. A truck 7 travelling in the recessed groove 3a shifts a chill strip and radiographic film 6 to a predetermined position for welding and inspection.
Patent JP-H06281442-A (JP)
Title: Operating angle detecting device of robot
Inventor: MATSUDA OSAMU
IPC: G01B21/22
Filed: 1993-03-27
Abstract: PURPOSE:To avoid the interference of a third arm with the ground or the like by detecting the angle and the attitude of the third arm relative to the ground irrespective of the angle of a second arm. CONSTITUTION:In a robot where a second arm 2 is rotated around a second shaft 2S arranged on a first arm 1, and a third arm 3 is rotated around a third shaft 3S arranged on the second arm 2, a first gear 5 is rotatably arranged relatively to the first arm 1 and the second arm, the first arm and the second arm are independently rotated according to the rotation of a motor 4, and the first arm is rotated as the second arm is rotated. An operating angle detecting device 6 consists of a rotary disk 60 which is integratedly formed on this first gear 5 and a limit switch 62 arranged on the first arm 1, and the angle of the third arm relative to the ground G is detected from the positional relation between a dog arranged on the rotary disk 60 which is rotated according to the rotation of the third arm 3 and the limit switch 62.
Patent JP-S5617350-A (JP)
Title: Exposing method
Inventor: KANAZAWA MASAO
IPC: G03F7/26
Filed: 1979-07-20
Abstract: PURPOSE: To prevent a film reduction of a photoresist film in exposure by applying a negative photoresist prepared by adding a specified amount of a crosslinking agent to a resin component to the surface of a substrate followed by projection exposure.  
     CONSTITUTION: The content of a crosslinking agent in a polyisoprene type negative photoresist is adjusted to 4W5.5 wt.%, and this resist is applied to the surface of substrate 4 to form polyisoprene type negative photoresist film 1. Projection exposure is then performed. Thus, a film thickness reduction of photoresist film 1 is reduced considerably to prevent film 1 from breaking at shoulders 5 of a surface protrusion of substrate 5, and a minute pattern can be formed on substrate 4 with accuracy. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H04218918-A (JP)
Title: Semiconductor device and its manufacture
Inventor: TANIZAWA SATORU
IPC: H01L23/52
Filed: 1991-04-23
Abstract: PURPOSE:To enable easier and surer flattening of a periphery of a via hole of multilayer wiring structure in a wafer process and to enable high performance and high integration of a semiconductor device. CONSTITUTION:In a semiconductor device having a lower layer wiring 25 and an upper layer wiring 29 electrically connected through a via hole 28 formed in a layer insulating film 27, a dummy pad 100 which is electrically insulated from the lower layer wiring 25 and the upper layer wiring 29 is formed on the same surface as the lower layer wiring 25 in a periphery of the via hole 28.
Patent JP-S62250839-A (JP)
Title: Valve water-wheel ganerator
Inventor: SAKAI KOICHI
IPC: H02K5/00
Filed: 1986-04-23
Abstract: PURPOSE:To simplify installation and enable a stable operation by supporting an exciter rotor bearing and an exciter stator by a common frame. CONSTITUTION:A generator portion 1 is formed into a watertight structure by means of a stator frame 2 and a top cover 3 and being in a state where its whole body is submerged in a water channel. An exciter rotor 4 is attached to an auxiliary shaft 8 driven by a main shaft 9. A bearing 6 and an exciter stator 5 are borne on a common frame 7 provided in the vicinity of an upstream end of the stator frame 2. Accordingly, the gap between the exciter stator 5 and rotor 4 suffers no change, because the mutual relation between said stator and rotor remains unchanged even by hydraulic pressure and buoyancy applied to a valve water wheel generator.
Patent JP-H10287414-A (JP)
Title: Low dielectric constant material, interlaminar insulation membrane and ic board
Inventor: MATSUZAKI YOICHI
IPC: C01B33/113
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To make an insulating material capable of being applied to semiconductor element, etc., have a low dielectric constant, by allowing the material to have a main chain comprising units of a metal element and oxygen, and further allowing the main molecular structure of the main chain to have a connected structure of ring structural units, or a successive chain structure. SOLUTION: This low dielectric constant material has a main chain comprising M-O unit (M is B, Al, Si, Ti, Ge, Y, Zr, Nb or Ti). A dielectric constant εis shown by formula I (W is a molecular weight; Na is Avogadro's number) by using a density ρ and a polarization α of a molecule constituting the material because the orientation polarization is omitted in a three dimensional network structure. When a conjugated electron is not included in the material, the influence of a molecular structure is small, and a vibrational polarization is shown as the total of contributions from all normal vibration modes by formula II [(μ) is a dipole moment, (a) is the normal vibration mode; Qa is a normal vibration coordinate; ωa is a normal vibration number]. The molecular structure has no chain terminal, and thereby the wa is high and vibrational polarization can be reduced.
Patent JP-H0214015-A (JP)
Title: Polyester yarn leader cloth
Inventor: TAKAHASHI TOSHIRO
IPC: D01F6/92
Filed: 1988-04-14
Abstract: PURPOSE:To obtain the subject yarn having specific physical properties and high strength, satisfying heat resistance, modulus and dimensional stability, etc., and having excellent permanence, comprising of polyethylene terephthalate. CONSTITUTION:The aimed yarn is composed of polyester comprising polyethylene terephthalate or mainly polyethylene terephthalate and simultaneously satisfies characteristic properties such as >=0.90dl/g inherent viscosity, >=7.0g/d, preferably >=7.3g/d strength, 0.70-0.80 total degree of orientation, <=0.75 degree of orientation of amorphous region, 0.40-0.55 crystallinity and >=70% strength retention after degradation by ammonia.
Patent JP-H08290951-A (JP)
Title: Back filling grouting material
Inventor: TANAKA YOSHIO
IPC: C04B7/19
Filed: 1995-04-18
Abstract: PURPOSE: To obtain a back filling grouting material, excellent in fluidity, hardening characteristics. and initial strength and reduced in elongation of long-term strength by including a cement, calcium aluminate, gypsum, an aluminum dross, a separation reducing agent and a setting regulator therein. CONSTITUTION: This back filling grouting material is obtained by blending 20-40wt.% cement with 6-18wt.% calcium aluminate, 4-12wt.% gypsum, 70-24wt.% aluminum dross, 0.01-0.1wt.% separation reducing agent and 0.1-5.0wt.% setting regulator. Thereby, the resultant back filling grouting material has >=10kgf/cm<2> initial strength (2hr material age), <=100kgf/cm<2> final value of compressive strength at 28 days material age and 10,000-20,000kgf/cm<2> elastic modulus.
Patent JP-S62247820-A (JP)
Title: Method for filtering gas
Inventor: NOYORI MASARU
IPC: B01D53/04
Filed: 1986-04-22
Abstract: PURPOSE:To efficiently perform the filter of gas for a long time by treating gas to be treated by means of a granular adsorbent and thereafter treating it by ion exchange fiber. CONSTITUTION:Gas contg. an unavailable material such as i.e. NH3 or an available material is treated by activated carbon, impregnated carbon which is impregnated with chemicals capable of adsorbing aidic gas and alkaline gas and a granular adsorbent such as silica gel and alumina gel and thereafter treated by ion exchange fiber such as cation exchange fiber, anion exchange fiber and chelate exchange fiber respectively having a cation exchange group, an anion exchange group and a chelate group. Air-permeable resistance is reduced and simultaneously high-degree filter of gas is efficiently performed for a long time by performing two treatments in such a way.
Patent JP-H04218757-A (JP)
Title: Method for diagnosing deterioration of film
Inventor: KONDO TAKESHI
IPC: G01N27/00
Filed: 1991-03-29
Abstract: PURPOSE:To quantitatively, objectively and accurately diagnose the deterioration degree of a film in a method for diagnosing the deterioration degree of the film on the basis of the measured result of the impedance of the film. CONSTITUTION:Voltage with frequency of 0.01-1Hz is applied between a probe 10 and the substrate metal of a film 9 by an I/F board and a CPU 2 calculates the impedance of the film to each frequency from the current value measured by a preamplifier 12. The impedance of the film markedly changes within the frequency range of 0.01-1Hz with the elapse of time and the logarithm of the impedance of the film has linear relation with respect to the elapse of time and a judging means can judge the deterioration degree of the film 9 with high accuracy.
Patent JP-S63260660-A (JP)
Title: Collapsible core for pressure casting
Inventor: SATO SATOSHI
IPC: B22D17/22
Filed: 1987-04-15
Abstract: PURPOSE:To facilitate removal of a core and to improve productivity by generating heat in inner part of the sand core for pressure casting by chemical reaction and containing a material promoting collapse of the sand core. CONSTITUTION:At the time of molding, the material generating the heat by chemical reaction is flowed together with coated sand. Then, the material generating the heat by chemical reaction may be dispersed into the whole core or may be intermingled partially. As the material generating heat by chemical reaction, Al2O3 and Fe2O3 are suitable, but the other material may be used. Further, start of the chemical r.action may be induced by heat of molten metal or by heating from the outside through charging the core in a furnace. As the coated sand, the material usually used may be used but for example, a material blending an organic binder of thermosetting phenol resin, etc., to an aggregate of silica sand, zircon sand, etc., is desirable. Then, it is set to the dies 11, 12 in the same way as the usual core 10 and casting is performed.
Patent JP-H10270017-A (JP)
Title: Non-aqueous electrolytic battery positive pole plate and non-aqueous electrolytic battery therewith
Inventor: MARUTA JUNICHI
IPC: H01M10/05
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To provide a non-aqueous electrolytic battery pole plate without any drop in energy density and capable of improving high rate discharging characteristics by providing nickel oxy-hydroxide including particles composed with the surface mainly consisting of curved surfaces in such a configuration of a spherical shape and/or approximating a spherical shape. SOLUTION: A pole plate and a battery excellent in high energy density and changing/discharging cycle characteristics are obtained by providing nickel oxy- hydroxide mainly including particles in configuration of spherical and/or approximating the spherical shape and its surface is mainly composed of curved surfaces. Furthermore, by setting the average particle diameter of the nickel oxy-hydroxide in a range from 1 to 100 μ, a pole plate excellent in balance between high rate discharging characteristics and an energy density is obtained. In addition, when the nickel oxy- hydroxide is made a positive pole plate, which forces being held by a conductive porous body in the ternary structure, the energy density of the pole plate is enhanced furthermore.  When the nickel hydroxide is formed in a spherical shape or in a shape approximating the spherical shape, increase in specific area corresponding to a decrease in the particle diameter is suppressed so as to increase the energy density.
Patent JP-H01264434-A (JP)
Title: System for detecting and controlling congestion of packet switchboard
Inventor: MUNEDA YASUSHI
Filed: 1988-04-15
Abstract: PURPOSE:To smoothly regulate and release the congestion of a packet switching device by causing a network control system to always patrol a date packet for testing so as to check the congested state of the exchange. CONSTITUTION:When a control section (CTL) 42 is periodically actuated by a timer (TM) 43 in a network management system(NMS) 4, The CTL 42 reads out route information from a memory(MM) 44 and sets the information and the current time. A patrol packet transmitting-receiving section(PPRS) 41 connects the patrol packet to a node(ND) 1 and transmits the packet. At the ND 1, the current time is set to the received patrol packet. Upon completion of the communication with the NMS 4, the ND 1 communicates with another ND 2 and similar processes are carried out until the ND 2 communicates with an ND 3. At the NMS 4, the patrol packet is received and the CTL 42 finds the time difference between the adjacent nodes and compares the difference with a threshold. When the difference is larger than the threshold, the CTL 42 discriminates that the ND is in congestion and informs the congestion of the ND 2 to the other nodes so as to cause the other nodes to regulate calls to the ND 2.
Patent JP-2000288671-A (JP)
Title: Device for manufacturing nearly u shaped wire rod
Inventor: SAWADA YUKINORI
IPC: H01F41/04
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a device for manufacturing nearly U shaped wire rods capable of manufacturing a large number of nearly U shaped wire rods at the same time. SOLUTION: A device 100 for manufacturing nearly U shaped wire rods is composed of a winding member 2 which is rotatably attached to a base frame 10, a spiral guide 23 which is formed on the surface of the wining member 2, a pair of cutter grooves 25 which is provided along the rotary shaft of the winding member 2, a turning mechanism which rotates the winding member 2 and winds wire rods B red from a wire rod feeding source S on the surface of the winding member 2 along the spiral guide 23, and a cutting mechanism 6 which moves the cutter along a pair of cutter grooves 25 and cuts the wire rods B in the respective cutter grooves.
Patent JP-S5719179-A (JP)
Title: Pulse arc welding machine
Inventor: MOCHIGURI SHIGEO
IPC: B23K9/09
Filed: 1980-07-08
Abstract: PURPOSE: To provide a pulse arc welding machine of extremely easy setting and adjusting of base current by providing the constitution which beforehand determines the base currents suited to wire diameters according to these, and selects the same according to wire diameters used at the time of welding.  
     CONSTITUTION: The DC current supplied from a DC power source 8 is turned on and off by a switching circuit 9, by which pulse current is formed. In this case, right after off of the circuit 9, welding current is reflowed through a DC reactor 11, and flywheel diode 12. The base current selected according to the diameter of a wire 3 used is supplied from a base power source 2. To set this base current, the corresponding relations of the on and off times of the switching element in a base current source 2 and base current values are beforehand obtained, and the above- mentioned on and off times are set according to the base current value selected with a base current setting device 10. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H10265873-A (JP)
Title: Copper alloy for electrical/electronic parts and its production
Inventor: OZAKI RYOICHI
IPC: C22F1/08
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To obtain an Fe-contg. copper alloy material excellent in press workability and bending workability by specifying the range of crystal grains in the sheet width direction on the rolled surface of a copper alloy having a specified compsn. and the ratio of crystal grains lying in the range to all crystal grains. SOLUTION: This copper alloy is the one having a compsn. contg., by weight, 0.2 to 4% Fe, in which Fe or/and Fe base intermetallic compounds are precipitated, and the balance Cu with inevitable impurities. The intermetallic compounds are stably formed as Fe-P, Fe-Si and Fe-Ti and precipitate into Cu mother phases to improve the proof stress and heat resistance of the copper alloy. Then, the average grain size in the sheet width direction measured in the rolled face is regulated to 3 to 60 μm, and the number of crystal grains having dimensions of 80 to 120% to the value is regulated to >=70% (>=70% grading degree). For forming such graded structure, it is required that rapid heating is executed prior to aging treatment. It is preferable that its temp. is raised to the temp. range of 450 to 950 deg.C at a rate of >=0.1 deg.C/sec and it is held to the temp. for 5 sec to 10 min and is recrystallized.
Patent JP-H06307254-A (JP)
Title: Double compression travel internal combustion machine
Inventor: YO YASUKAZU
IPC: F02B75/02
Filed: 1993-04-20
Abstract: PURPOSE: To recompress fuel, to improve uniformity of fuel mixed gas and to promote complete combustion by setting stroke of 6 stages in total constituted of suction, compression, agitation expansion, recompression, ignition combustion and exhaust in an internal combustion engine provided with double compression stroke. CONSTITUTION: In an engine main body 100, a suction valve 102, an exhaust valve 103 and an ignition device 104 are disposed for a cylinder 101. At the inside of the cylinder 101, a piston 105 is reciprocatingly stored. The piston 105 is driven by a crankshaft 107 via a connection rod 106, and the suction valve 102, the exhaust valve 103 and the ignition device 104 are driven via timing gears W1, W2. In this reciprocating engine, agitation expansion and recompression stroke of one time or one time or more are added between each stroke of suction and compression and ignition combustion explosion stroke. Namely, stroke of six stages in total of suction, compression, agitation expansion, recompression, ignition combustion and exhaust are set.