baber/WOPTO huggingface dataset:
Patent JP-H0410899-A (JP)
Title: Loud speaker device
Inventor: MORIKAWA HIDEAKI
IPC: H04R1/28
Filed: 1990-04-27
Abstract: PURPOSE:To improve a reproducing property by making a noise suppressing body consist of a horn-slaped buffle 13 that a relief hole to relieve sound deviated from a radiation center axis to an external part is formed on an outer circumferential face and a sound absorbing panel to cover the relief hole from outside. CONSTITUTION:The one part of sound deviated from a radiation center axis from a speaker unit 10 is transmitted through a relief hole 12 of a horn-shaped buffle 13 and a sound absorbing panel 14 and the one part is diffracted from the open edge of the horn-shaped buffle 13 and is emitted to an external part. Then, a phase by the distance difference of a transmission sound wave and a diffraction sound wave becomes 180' by selecting the size of the radiation direction at the horn-shaped buffle 13 and a transmission position properly and the sound waves are canceled. Thus, an adverse effect to the sound wave to advance along the radiation center axis by the sound wave deviated from a radiation center axis X is avoided, besides, only the sound wave to advance along the radiation center axis is outputted from a speaker device and narrow directivity is raised.
Patent JP-S5540933-A (JP)
Title: Azimuth detector for magnet compass
Inventor: ABE ATSUSHI
IPC: G01C17/26
Filed: 1978-09-16
Abstract: PURPOSE: To detect the azimuth of magnet with a simple constitution and with high accuracy, by detecting the phase of output voltage corresponding to the direction of synthesized magnetic field between the DC magnetic field of the magnet and the rotating magnetic field with rotating magnetic field generator.  
     CONSTITUTION: The ring core 2 is located at the center O of the circle P, and when the synthesized magnetic field C is rotated with the rotation of the rotating magnetic field R, if the magnetic field R and DC field M are opposite, the fields are cancelled each other to cause the field C to be zero and the voltage between the output terminals P 3  and P 4  is zero. Since the position when the field C is tentatively zero is changed with the position of the magnet 1, the zeroed part is changed with the rotation angle of the magnet 1. When the field M of the magnet 1 turns clockwise from the positive direction of the Y axis, the zeroed part moves right from the position of 0°, and if counterclockwise, it moves left. Accordingly, the detection of the change in the zeroed part can tell the revolving position of the magnet 1 with high accuracy. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5237620-A (JP)
Title: Secondary air supplying device for engine
Inventor: UNO HEITAROU
IPC: F01N3/10
Filed: 1975-09-20
Abstract: PURPOSE: Promotion of exhaust gas purification with preliminary heating of the secondary air. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S60257824-A (JP)
Title: Denitration of coke oven exhaust gas
Inventor: SETO TOORU
IPC: B01D53/94
Filed: 1984-06-05
Abstract: PURPOSE:To contrive to conserve energy, in the denitration method of coke oven exhaust gas, by evaporating aqueous ammonia recovered from coke oven gas by the sensible heat of exhaust gas before introducing the same into the denitration reactor provided to a flue outlet. CONSTITUTION:The coke oven gas generated from a carbonization chamber 2 is introduced into a gas purification process 6 where impurities such as acidic gas or NH3 are removed to obtain purified gas 8 while a recovery substance 7 and aqueous ammonia 13 are recovered from the impurities. The exhaust gas generated from a combustion chamber 3, to which fuel 9 is added, enters a heat accumulation chamber 4 to recover heat and is introduced into a denitration reactor 12 through a flue 10. Recovered aqueous ammonia is guided to an evaporator 20 and a flash device 21 to be taken out as NH3-vapor 16 which is, in turn, supplied as an NOx reducing agent from a nozzle 19 to perform the denitration reaction with exhaust gas in the direction reactor and purified gas 18 is exhausted.
Patent JP-H0687670-A (JP)
Title: Ceramic composite material reinforced with alumina-based inorganic fiber
Inventor: NIIHARA KOICHI
IPC: C04B35/80
Filed: 1992-03-24
Abstract: PURPOSE:To enhance strength and fracture toughness over a wide temp. range by using alumina-based inorg. fibers as a reinforcing material and a specified oxide-based nanocomposite material as a matrix. CONSTITUTION:Particles of (multiple) nitride of Si, B, Al, Mg, Ti, Mo, etc., or (multiple) carbide of Si, Ti, Zx, Al, etc., having 1-1,000mum particle diameter are dispersed in particles of (multiple) oxide of Al, Mg, Si, Y, In, U, Ca, Sc, Ta, Nb, Nd, La, Lu, Rh, Be, Ti, Sn, Sr, Ba, Zn, Zr, Fe, etc., having 0.05-1,000mum particle diameter by 1-50 vol.% and they are hot-pressed to obtain an oxide- based nanocomposite material as a matrix. This matrix is mixed with 1-70vol.% alumina-based inorg. fibers as a reinforcing material and the mixture is compacted and sintered at 400-2,100 deg.C.
Patent JP-2000304961-A (JP)
Title: Clamp device for optical fiber
Inventor: TANAKA TAKESHI
IPC: G02B6/28
Filed: 1999-04-21
Abstract: PROBLEM TO BE SOLVED: To obtain a clamp device for optical fiber which neither rotates nor flaws a clamped part of an optical fiber at the time of clamping. SOLUTION: A hinge receiver 13 equipped with a hinge pin 19 parallel to a clamp main body 7 is provided vertically movably by a slight quantity, and the base part of a clamp lid 21 is connected to the hinge pin 19 to enable the clamp lid 21 to swing in an opening/closing direction on the axis of the hinge pin 10. A moving operation means 25 is provided which moves the hinge receiver 13 down by a slight quantity after the clamp lid 21 is set nearly horizontally.
Patent JP-H11308032-A (JP)
Title: Antenna holding structure
Inventor: UTSUNOMIYA OSAMU
IPC: H01Q1/24
Filed: 1998-04-23
Abstract: PROBLEM TO BE SOLVED: To provide an antenna holding structure which is reduced in the number of soldered parts and improved in productivity, such as reduction in man-hours. SOLUTION: In this antenna holding structure which fits a frame-shaped antenna 2A into one side part of a printed circuit 1A and provisionally holds it, an antenna support part fitting slot 12 and an antenna stopper part slot 13 are formed at both ends of the one side part of the circuit 1A, an antenna support part 9, which is interfitted by the slot 12 and supported in a turnable way, is formed on one end side of the antenna 2A and a substrate holding nail part 10 which controls the vertical movement of the circuit 1A and an antenna stopper 11, which is inserted into the slot 13, by being pressed by the slot 13 and controls the back and forth movement of the circuit 1A after being inserted are formed on the other end side of the antenna 2A.
Patent JP-S63279493-A (JP)
Title: Memory device
Inventor: SHINGU MASATAKA
IPC: G11C11/40
Filed: 1987-05-11
Abstract: PURPOSE:To increase the accumulation degree without reducing data holding characteristics by increasing the impurity density in the low density impurity zone of the transistor constituting a flip-flop more than the impurity density of the low density impurity zone of a switching transistor. CONSTITUTION:The impurity density in the 1st zone 34a in the transistors 14, 15 constituting a flip-flop 11 is increased more than that of the 1st zone 32a in switching transistors 12, 13. The current driving capacity of the transistors 14, 15 constituting the flip-flop 11 is therefore increased more than that of the switching transistors 12, 13 even if the areas of the transistors 12, 13 and 14, 15 are equal each other. The need for making the area of the transistors 14, 15 especially larger is thus eliminated and the accumulation degree can be increased without reducing the data holding characteristics.
Patent JP-H05285520-A (JP)
Title: Method for controlling meander of steel strip
Inventor: MUTA KIYOSHI
IPC: B21B37/00
Filed: 1992-04-07
Abstract: PURPOSE:To control the meandering of a steel strip when its tail end part passes through a rolling mill. CONSTITUTION:A threshold value is set to be compared with detected value for the difference between right and left loads of a rolling roll of a rolling mill. When the tail end part of the moving steel strip passes through the rolling mill, a difference between right and left levels of the rolling roll is controlled by a low gain as the threshold value is compared with the detected value of the load difference and only when the detected value of the load difference exceeds the threshold value, the gain is made high.
Patent JP-H09284982-A (JP)
Title: Switching power supply circuit
Inventor: KOJIMA HIDEKI
IPC: G01R19/00
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To improve the setting precision of a maximum on-period and reduce the sizw of a transformer in a switching power supply circuit. SOLUTION: The tertiary winding N3 of a transformer is provided in addition to primary and secondary windings and a series circuit consisting of a diode D5, a resistor R6 and a resistor R7 is connected between both the terminals of the tertiary winding N3. An integral circuit composed of a resistor 8 and a capacitor C4 is connected to the connection point between the resistor 6 and the resistor 7 and an input voltage detection circuit 4 is composed of the diode D5, the resistor 6, the resistor 7, the resistor 8 and the capacitor C4. The connection point between the resistor 8 and the capacitor C4 is, as the output terminal of the input voltage detection circuit 4, connected to the connection point between the overcorrect detection terminal CLM of a control circuit 3 and a current detecting resistor R1.  With this constitution, an input voltage detection signal corresponding to the input voltage of a power supply circuit is superposed upon a current detection signal corresponding to a current flowing through the power supply circuit and synthesized with it.
Patent JP-H06323179-A (JP)
Title: Control device for internal combustion engine
Inventor: HARA FUMIO
IPC: F02D41/04
Filed: 1994-04-28
Abstract: PURPOSE:To control a fuel injection amount in good responsiveness in accordance with changing air-fuel ratio by a purge by updating a purge concentration correction coefficient, used in controlling a fuel injection valve, based on a direction of changing an air-fuel ratio correction coefficient at the time of operating a purge control valve. CONSTITUTION:A purge control valve 24 is interposed in a purge passage 23 for connecting a canister 21 of adsorbing vaporized fuel in a fuel tank 9 to the downstream of a throttle valve 4 in an intake pipe 2. This purge control valve 24 is controlled by an ECU6 in accordance with an engine operative condition, and also a fuel injection valve 7 is controlled in accordance with an air-fuel ratio correction coefficient and a purge concentration correction coefficient. The air-fuel ratio correction coefficient is calculated in accordance with air-fuel ratio detected by an O2 sensor 16, and the purge concentration correction coefficient is set in accordance with fuel vapor sucked to an engine. Here is updated the purge concentration correction coefficient based on a direction of changing the air-fuel ratio correction coefficient at the time of operating the purge control valve 24, thus to always obtain a proper fuel injection amount.
Patent JP-S63279778-A (JP)
Inventor: WADA RYUTARO
IPC: A24F19/00
Filed: 1987-05-11
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-S61272985-A (JP)
Title: Slab type solid-state laser oscillator
Inventor: KURODA HIROTO
IPC: H01S3/04
Filed: 1985-05-29
Abstract: PURPOSE:To prevent the thermal breakdown of a solid-state laser medium by forming both end surfaces into a Brewster angle, housing the solid-state laser media divided into the plural into a transparent vessel and filling the vessel with matching oil having the same refractive index as the solid-state laser media. CONSTITUTION:A vessel 1 is constituted by a case in which both end surfaces 2, 2' formed at a Brewster angle and oppositely faced upper and lower both surfaces 3, 3' mutually running parallel are made transparent. Antireflection multilayer films are attached at both ends 2, 2'. A laser medium 4 is supported into the vessel 1 by the lower surface 3' of the vessel, and divided into the plural in parallel regarding the direction of course of beams. The laser medium 4 and the space of the vessel 1 are filled with matching oil 6 having the same refractive index as the laser medium 4, and the matching oil passes through a large number of inflow ports 7 and outflow ports 8 shaped on both sides of the vessel 1 to cool the laser medium. Lamp houses 9, 9' are fitted, and flash lamps 10, 10' are installed into the lamp houses. The lamps 10, 10' are cooled by a coolant passing through inflow ports 11, 11' and outflow ports 12, 12'.
Patent JP-S5238898-A (JP)
Title: Impulse voltage light emitting device
Inventor: MASAKI KAZUMI
IPC: H05B44/00
Filed: 1975-09-23
Abstract: PURPOSE: To obtain the light emitting device for the signal and identification which perform light emission continually comparatively for a long time with the simple voltage generator without using a power supply such as a generator or battery. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5817313-A (JP)
Title: Azimuth meter for vehicle
Inventor: SUZUKI HIDETAKA
IPC: G01C17/30
Filed: 1981-07-23
Abstract: PURPOSE:To prevent the erroneous display of an azimuth, by changing the difference in the azimuth which is detected at every specified period in relation to the function of the vehicle speed. CONSTITUTION:The period between the pulses of the pulse signal from a distance sensor 81 is measured by a distance to vehicle speed converter 82, with the signal from an oscillator 9 as a time reference signal. The result is sent to a function generator 83 as a speed data. The rotary angle signal of the vehicle, which is determined as a comparison data, is outputted from the function generator 83. The output of the azimuth meter is inputted to a comparator 7. The comparator 7 compares the output of a memory 6, which is the output of the azimuth meter of the value at the time of a specified period before it with the output of the azimuth meter 5 at this time. When the difference is larger than the specified value, an output is retrieved from the memory 6. When the difference is smaller than the specified value, the output is retrieved from the azimuth meter 5. In this case, the difference between the output of the azimuth meter 5 which is the comparing data and the output from the memory 6 is changed by the rotary angle signal from the function geneator 83.
Patent JP-S63280165-A (JP)
Inventor: NISHIKAWA KAORU
IPC: E04H15/34
Filed: 1987-05-13
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-S5813957-A (JP)
Title: Foot warmer with wooden frame
Inventor: KURIYAMA TAKESHI
IPC: F24C7/04
Filed: 1981-07-20
Abstract: PURPOSE:To enable to operate a heating body in wireless and improve the  handleability thereof by a method wherein a control circuit section is provided  on the main frame of the foot warmer in the wooden frame and a parallel resonance device, operating the control circuit section, is provided on a table  board put on the main frame. CONSTITUTION:The main body 16 of the wooden frame is provided with a first  oscillator 1, a detector 2 detecting the signal of an operating section, an amplifier 3, a detector 4, a comparator 5 and the second oscillator 6. The second  oscillator 6 is connected to a waveform shaper 8 through an integrator 7 and  the signal therefrom is fed back to the first oscillator 1 to keep the frequency  of oscillation in constant while it is impressed to a temperature detector 9 and  inputted into the control circuit 10 for the heating body 11. On the other hand,  the table board 17 is provided with an inductance 14 and a variable capacitance  15, which are constituting the parallel resonance device, to enable to control  said control circuit unit. Both of the main frame 16 and the table board 17 are connected in wireless through a floating capacity component between respective  electrode plates 12, 13.
Patent JP-S5815398-A (JP)
Title: Diaphragm for speaker
Inventor: MARUNO YOSHIAKI
IPC: H04R7/10
Filed: 1981-07-22
Abstract: PURPOSE:To simplify the shape of a core member and to improve the frequency characteristics, by forming a plurality of ribs radially for the core member and sequentially reducing the height of the ribs from the center to the external circumference. CONSTITUTION:In Figure, 1 is a core member and 2 is surface member sticked to upper and lower surfaces of the core member 1. A plurality of ribs 3 are radially incorporated on the core member 3, and the ribs 3 are continuously provided toward the circumference direction with uneveness. The ribs 3 are  provided radially with their height being sequentially reduced from the center to  the external circumference, and one rib 3 is constituted to almost triangular pyramid with two square surface elements 4 and 5.
Patent JP-H02294453-A (JP)
Title: Stainless steel for bearing and its production
Inventor: OKADA YASUTAKA
IPC: C22C38/00
Filed: 1989-05-08
Abstract: PURPOSE:To produce a stainless steel for bearing in which macrocrystalline pro-eutectoid carbide is removed and cold workability, as-quenched hardness, and corrosion resistance are secured by hot-forming a billet of Cr-containing steel with a specific composition and then applying soaking, cooling, and reheating to the above under respectively specified temp. conditions. CONSTITUTION:A billet of a steel having a composition which consists of, by weight, 0.50-0.90% C, 0.10-1.00% Si, 0.2-1.5% Mn, <=0.025% P, <=0.020% S, 7.5-12.5% Cr, and the balance Fe with inevitable impurities and in which Cr+10C<=18% is satisfied. The above hot-formed part is soaked and held at 950-1100 deg.C for 15min-5hr and then cooled down to 720-550 deg.C at <=150 deg.C/hr cooling rate, by which matrix structure, is transformed from austenite to ferrite. After cooling is stopped, the above formed part is held at 720-500 deg.C for 1min-5hr and then reheated up to 650-800 deg.C for 0.5-5hr, by which carbides are coagulated and softening is accelerated. Then, cooling is carried out by means of air cooling, etc.
Patent JP-H04227922-A (JP)
Title: Resin which can form flame-retardant and heat-resistant resin when cured, and manufacture and use thereof
Inventor: HERUBERUTO SHIYURAIBAA
IPC: C08G73/06
Filed: 1991-05-20
Abstract: PURPOSE: To obtain a resin which, when cured, can form a polymeric resin excellent in flame retardance and heat resistance and suitable for electrical insulating materials for printed circuit boards by compounding a compd. having a specific thermally curable group, two specific curable resins. and if necessary a curative for the resins.  
     CONSTITUTION: This resin is a mixture comprising a component (A) consisting of a thermally curable compd. contg. 1-oxa-3-aza-tetralin group (e.g. an oxazene resin of the formula which is a reaction product of phenol, aniline, and formaldehyde in a molar ratio of 1:1:2), a component (B) consisting of a curable halogenated epoxy resin (pref. a brominated epoxy resin), optionally a component (C) consisting of a curable nonhalogenated epoxy resin, and optionally a curative (D) for epoxy resins (e.g. a polyamine or a polycarboxylic acid). When cured, this resin can form a flame-retardant heat-resistant polymeric resin. 
     COPYRIGHT: (C)1992,JPO
Patent JP-S596249-A (JP)
Title: Oriented film of thermoplastic resin
Inventor: UCHIUMI SHIGEO
IPC: C08L67/02
Filed: 1982-07-02
Abstract: PURPOSE:To provide the titled film which is excellent in easy slipperiness of oriented film, non-stickiness of unoriented film on rolls, blocking resistance between films, adhesion to magnetic layer, etc., by blending a specified org. polymer with a thermoplastic resin. CONSTITUTION:A thermoplastic resin-oriented film is obtd. by orienting a compsn. obtd. by blending an arom. polyester carbonate with a thermoplastic resin, wherein said carbonate is used in an amount of 50wt% or below of that of said resin. Examples of the arom. polyester carbonates are those having a structural unit (A) of formula I (wherein X is a bivalent group) and a structural unit (B) of formula II [wherein X is as defined above; R is (substd.) phenylane] in a molar ratio of A to B of 1/3-3/1 and having a second-order transition temp. of 150-190 deg.C. The obtd. films have satisfactory characteristics, such as easy slipperiness of oriented film, non-stickiness of unoriented film on rolls, blocking resistance between films, adhesion to magnetic layer, mechanical performance and electrical characteristics.
Patent JP-H06324150-A (JP)
Title: Radioactive ray monitor
Inventor: ISHIBASHI MITSUO
IPC: G01T1/17
Filed: 1993-05-17
Abstract: PURPOSE:To detect the abnormal rise of the radioactive ray level speedily and surely in the initial stage by obtaining the judgement value of the rising level by using the related equation of the error statistics and transmitting a forecasting alarm when the counting value of the rising level exceeds the rising level judgement value. CONSTITUTION:The radioactive ray level is measured at each constant time (t), and the newest data at each time is set N1, and the counting time band Ts including N1 at each counting and the old counting time band Tb in the preceding time are set, and the rising level counting rate (n) as the difference between each counting rate ns and nb is obtained. Further, by using the related equation of the statistical error in the measurement of the counting rate (n), the rising level judgement value (a) is obtained, and when the rising level counting rate (n) exceeds the rising level judgement value (a), forecasting alarm is operated. Further, when the counting rate (n) does not exceed the judgement value (a), the old time band Tb is shifted forwardly by the elongation portion by slightly elongating the new counting time band Ts, and the similar processing is carried out. Accordingly, even the variation of the slight radioactive ray level which can not be detected by the conventional fixed judgement level method can be detected.
Patent JP-S62270607-A (JP)
Title: Production of highly water-absorptive resin
Inventor: KONDO SUSUMU
IPC: C08F220/04
Filed: 1986-05-19
Abstract: PURPOSE:To obtain the title resin excellent in water absorptivity, water absorption rate and water insolubility and useful for diapers, sanitary articles, etc., by polymerizing a mixture of (meth)acrylic acid with a water-soluble (meth) acrylate in the presence of a specified resin. CONSTITUTION:(Meth)acrylic acid (A) is partially (60-90mol%) neutralized with an alkali metal hydroxide, an amine or the like to obtain a mixture of component A with a water-soluble (meth)acrylate (B) at a molar ratio of 40-10/60-90. This mixture is polymerized at 50-90 deg.C for 0.5-5hr in a solvent (e.g., n-hexane) in the presence of 0.1-25wt%, based on the mixture, PVA resin containing 0.1-30mol% carboxyl groups (e.g., monomethyl maleate- modified PVA) and a polymerization initiator (e.g., ammonium persulfate).
Patent JP-H033407-A (JP)
Title: Amplifier, which can be utilized in ultra-high frequency region and gain of which can be adjusted
Inventor: DEIDEIE RUMEITORU
IPC: H03G3/10
Filed: 1990-04-27
Abstract: PURPOSE: To provide a gain adjustable MMIC(Monolithic Microwave Integrated Circuit) monolithic amplifier by applying a control voltage to one of the terminals of an MMIC monolithic circuit. CONSTITUTION: At least one MMIC 5 provided with the two terminals 2 and 4 for grounding is utilized, one 4 of the terminals is grounded by self induction 13 and the other 2 is grounded by a capacitance 14 cascade connected with an impedance 16 adjustable from the outside. Then, by applying a voltage V to the adjustable impedance, for instance a PIN diode, and changing it, not only an operation is performed at a high frequency but also the automatic control of this amplifier is made possible. Thus, an ultra high frequency monolithic amplifier gain adjustable by external control is obtained.