baber/WOPTO huggingface dataset:
Patent JP-2000058336-A (JP)
Title: Mold structure of electronic component
Inventor: KOBAYASHI KAZUMI
IPC: H01F27/02
Filed: 1998-08-06
Abstract: PROBLEM TO BE SOLVED: To provide a mold structure of an electronic component which generates no swellings and cracks of a mold resin, and ensures improvement in a yield, miniaturization, and cost reduction. SOLUTION: A coil component 1 having a core 2 and other circuit components 5 are mounted together on a substrate, or the coil component 1 alone is mounted on the substrate. The surface of the core 2 is covered with a coating resin 8. A mold resin 3 is applied to the coating resin 8, and the mold resin 3 covers the coil component 1 and the circuit components 5, or covers the coil component alone.
Patent JP-H04104351-A (JP)
Title: Data transfer method for synchronous bus
Inventor: YAMAGUCHI MASAFUMI
IPC: G06F13/42
Filed: 1990-08-23
Abstract: PURPOSE:To transfer data at high speed and with high reliability by invalidating a bus strobe signal by means of validating a bus acknowledgement signal and invalidating the bus acknowledgement signal by means of invalidating the bus strobe signal. CONSTITUTION:An address strobe signal 3 and a data strobe signal 4 are outputted from a master board in synchronizing with a bus clock 1. A data acknowledge signal 6 is asserted by asserting a data strobe signal 4 and the address strobe signal 3 and 4 are negated by asserting the signal 6. The signal 6 is negated by negating the signal 4. Thus, a data transfer error is prevented with only the transfer of one clock is delayed even if step out occurs, and a system with high reliability can be constituted.
Patent JP-H0967553-A (JP)
Title: Resin paste for die bonding
Inventor: MATSUDA YUTAKA
IPC: C08G59/62
Filed: 1995-08-31
Abstract: PROBLEM TO BE SOLVED: To obtain a resin paste for die bonding which hardly stains a substrate and is excellent in resistance to soldering crack. SOLUTION: This paste contains as the essential components an arom. diepoxy resin liq. at normal temp. and having a hydrolyzable chlorine content of 500ppm or lower, 4,4'-diamino-3,3'-diethyldiphenylmethane as the curative, 0.01-1wt.% (based on the resin) 1,8-diazabicyclo [5,4,0]undecene-7 and/or its salt, 0.05-5wt.% (based on the paste) superfine-particle silica powder having an average size of primary particles of 2-50nm and having silanol groups existing on the surface, and 10-90wt.% (based on the paste) an inorg. filler.
Patent JP-2001051956-A (JP)
Title: Method for generating community, method for managing community, information distributing method, resource reserving method and medium recording program therefor
Inventor: NAKAMURA TAKAYUKI
IPC: G06F9/50
Filed: 1999-08-06
Abstract: PROBLEM TO BE SOLVED: To provide a method capable of distributing even information, which can not be predicted, handling a non-determined resource reservation not to always require a reservation and a medium recording a program therefor. SOLUTION: An agent defining inquiry information or reserved resources as the principal of a logical concept expressing the activity purpose of the agent is extracted by analyzing communication between agents or retrieving a note held by the agent, and a community 10 is generated by these agents (20 and 30). By inquiring information or reserving resources to the agent inside this community 10, information, which can not be predicted, is distributed or non-determined resources are reserved (50 and 60).
Patent JP-H0273172-A (JP)
Title: Through hole inspecting method
Inventor: SUZUKI SHINJI
IPC: G01R31/02
Filed: 1988-09-08
Abstract: PURPOSE:To correctly detect a defect with a high sensitivity by detecting a leaked light signal in an area expanded with a through hole position as the center and discriminating a narrow range where a quadratic function value related to the detected value is smaller than a prescribed value is larger than the through hole or not. CONSTITUTION:A CCD sensor 12 detects the leaked light leaked into the through hole, and this leaked light signal is stored in a signal storage circuit 2 as multivalued data. This leaked light signal is sampled by a hole position signal expanded forward and backward from the center of the hole position signal by a/2 where (a) is the width of a hole signal 31. A leaked light signal 33 in this sampled section is subjected to differential of second order one- dimensionally. When a threshold given beforehand is denoted as Ts, a part where f''(x)<Ts is true out of the leaked light signal subjected to differential of second order is detected by a comparator 34 and its length is measured. When this length is larger than the size (a) of the through hole, it is judged that the through hole has a defect. When the detected length is smaller than (a), said part is regarded as noise to judge that the through hole is normal.
Patent JP-H0385947-A (JP)
Title: Fsk signal demodulator
Inventor: SEKINE KEITARO
IPC: H04L27/14
Filed: 1989-08-30
Abstract: PURPOSE:To obtain a signal demodulator formed easily with small size by using a period detecting means to count the period of an FSK(frequency shift keying) signal and compensating a noise component mixed in the FSK signal. CONSTITUTION:The period of an FSK signal is counted by a counter circuit 11 via a waveform shaping circuit 10, and when a counted value (t) belongs to the range of t1-td<=t<=t1+td, a deciding logic circuit 12 outputs the signal of logic '1' and a deciding logic circuit 13 outputs the signal of logic '0'. The output signal is fed to a flip-flop circuit 14 and the signal demodulated once by the flip-flop circuit 14 is given to a shift register 15 and a discrimination circuit 16, in which a final demodulation signal is generated by the statistic processing including the past data. Thus, the number of components is considerably reduced and miniaturization is attained.
Patent JP-2001047507-A (JP)
Title: Bagging method in autoclave molding of composite material
Inventor: NAKAMURA TETSUYA
IPC: B29C51/10
Filed: 1999-08-06
Abstract: PROBLEM TO BE SOLVED: To simply perform bagging without using a bagging film and to achieve the reduction of the number of processes and economical processing in the subject bagging method. SOLUTION: A prepreg 12 comprising fiber reinforced plastic is superposed on the uneven surface 11a of a lower mold 11 for producing an article to be covered with a silicone rubber sheet 13 and the periphery of the silicone rubber sheet 13 and the lower mold 11 are sealed by a seal frame 15 and the gap between the lower mold 11 and the silicone rubber sheet 13 is evacuated and, at the same time, the prepreg 12 is cured by an autoclave method.
Patent JP-H0385927-A (JP)
Title: Phased array antenna
Inventor: NAKAJO WATARU
IPC: H01Q3/26
Filed: 1989-08-30
Abstract: PURPOSE:To reproduce a reference carrier signal with less phase error by reproducing the reference carrier signal of a data signal from a synthesis signal resulting from the sum of each error signal multiplied with each I and Q signal after phase control and using the reference carrier signal as a local oscillating signal to generate I and Q signals whose phases differ from each other by 90 deg.. CONSTITUTION:A beam direction control section 100 is provided with phase shifters 51-54 shifting each inputted signal by a prescribed phase only, variable gain amplifiers 61-64 changing the amplitude of the output signal and an arithmetic control circuit 50 calculating a phase shift and the amplitude adjustment quantity based on the beam direction inputted by an input device 60 and controlling the phase shifter and the amplifier so that the beam direction of the antenna is coincident with the beam direction. Then I and Q signals outputted from the beam direction control section 100 are multiplied, the multiplied signals are added, a reference carrier signal Sc is reproduced based on the added signal and I, Q and clock signals are generated based on the reference carrier signal Sc. Thus, the reference carrier signal with less phase error is reproduced.
Patent JP-S59116280-A (JP)
Title: Treatment of phthalic anhydride distillation residue
Inventor: HARADA YASUO
IPC: C07D307/89
Filed: 1982-12-22
Abstract: PURPOSE:To dispose the distillation residue of phthalic anhydride obtained by the catalytic vapor-phase oxidation of naphthalene or o-xylene, by mixing the residue with a fraction having lower boiling point than phthalic anhydride and extracting the residue from the distillation pot. CONSTITUTION:Crude phthalic anhydride obtained by the catalytic vapor-phase oxidation of naphthalene or o-xylene with a gas containing molecular oxygen is purified by distillation to separate the low-boiling fraction and phthalic anhydride fraction. The distillation residue produced by the distillation is distilled batchwise in vacuum to recover the phthalic anhydride remaining in the residue. The residue left after the recovery of the residual phthalic anhydride is mixed with a fraction having lower boiling point than phthalic anhydride (e.g. benzoic acid, toluic acid, etc.) and the residue is extracted from the distillation pot. The extraction can be carried out easily by adding 0.1-2pts.wt. of the low-boiling fraction to 1pt.wt. of the residue, thereby lowering the freezing point of the residue preferably to <=130 deg.C. EFFECT:Phthalic anhydride can be recovered from the distillation residue at a high rate of recovery.
Patent JP-2000054988-A (JP)
Title: Centrifugal fan
Inventor: SHIMAMURA KOZO
IPC: F04D29/62
Filed: 1998-08-07
Abstract: PROBLEM TO BE SOLVED: To reduce the number of parts so as to reduce costs by integratedly forming an annular cut margin around a rotary shaft on a disk shaped end plate for integratedly supporting a plurality of impellers. SOLUTION: In a centrifugal fan, a plurality of impellers 10 erected on an end plate 7 are arranged around a center boss part 9 at equal intervals. An outer peripheral edge part 7a extending in a centrifugal direction from a part on which the impellers 10 of the end plate 7 are erected is formed as a cut margin. In the outer peripheral edge part 7a, multiple slits faced to a radial direction are formed along a circumferential direction at equal intervals, and claw pieces 8 are formed by slits that are adjacent to each other. The claw pieces 8 arranged on required positions on the outer peripheral edge part 7a of the centrifugal fan 6 are bent and cut out along the slits on the basis of a result measuring a rotary balance of the centrifugal fan 9, and thereby, a balance can be held simply. The centrifugal fan 6 is constituted by one parts without necessitating a weight independently, and thereby, the number of parts are reduced, and costs are reduced.
Patent JP-H0868062-A (JP)
Title: Method for constructing concrete structure for coupled wall, and steel frame material
Inventor: OKIMOTO MASAYUKI
IPC: E21D13/00
Filed: 1994-08-26
Abstract: PURPOSE: To provide an excellent concrete reinforced structure wherein construction efficiency is improved, and cost reduction can be achieved by reduction of labor and rapid construction. CONSTITUTION: Anchor sections 11 for tie-bars 12 are provided beforehand in an underground continuous wall 5 and deformed bars 15 are arranged in a coupling wall 6 on the side of the wall 5 and steel elements 13 are successively connected on the inner side of the wall 6 by engaging fitting joints 13b provided on opposite ends of the tie-bar with each other. The forward end of the tie-bar 12, the other end thereof being fixed in the section 11, is engaged with a vertical rib 13c of the element 13 to keep the position of the elements 13, which also serve as a reinforcing bar material form. After the elements 13 are connected in a circular pattern, turnbuckles 12a are operated to pull the elements 13 toward the wall 5, thereby effecting pretension in the circumferential direction.  Concrete is placed between the wall 5 and the elements 13 to form the coupling wall 6 integral with the wall 5.
Patent JP-H11111159-A (JP)
Title: Electron emission element and display apparatus using the same
Inventor: YAMADA TAKASHI
IPC: H01J1/312
Filed: 1998-08-07
Abstract: PROBLEM TO BE SOLVED: To emit electron at a low voltage and with stable and high electron emission efficiency by forming an insulator layer with membrane thickness exceeding a specific value on an electron donating layer consisting of a silicon wafer formed on an ohmic electrode, and forming a thin metal film electrode on an insulator layer. SOLUTION: An ohomic electrode 11 is formed on a back of an electron donating layer 12, and an insulator layer 13 and a thin metal film electrode 15 are laminated on a surface. In particular, a silicon wafer is employed for the electron donating layer 12, and the insulator layer 13 consists of a dielectric, having an extremely thick membrane of >=50 nm. When a voltage Vd is applied between the ohmic electrode 11 and the thin metal film electrode 15, and an electron is injected into the electron donating layer 12, the electrons move the inside of the insulator layer 13, and part of the electrons reaching the vicinity of the thin metal film electrode 15 is emitted from the thin metal film electrode 15 to the external vacuum by a strong electric field due to a voltage Vc.  Thereby, an emission current >=1×10<6> A/cm<2> in practical range and electron emission efficiency >=1×10<4> can be obtained.
Patent JP-H04107802-A (JP)
Title: Production of magnetic fluid
Inventor: MATSUNAGA SHIGEKI
IPC: C10M125/20
Filed: 1990-08-28
Abstract: PURPOSE:To suppress intrusion of dispersant vapor into a clean space even in an application on the rotary part of a vacuum machine by producing a magnetic fluid in which fine grains of iron nitride having high magnetic saturation and coated with surfactant are dispersed into any one of low vapor pressure first oils, esters or ethers. CONSTITUTION:A surfactant P is dissolved into any one B of first oils, esters or ethers having vapor pressure lower than or equal to 0.01 torr at 25 deg.C. It is then subjected to plasma CVD reaction to produce fine grain iron nitride Y. The colloidal solution is then taken out of a plasma CVD reaction vessel and subjected to heat treatment in a heat treatment system in order to crystallize the fine grain iron nitride Y. Upon finish of heat treatment, the colloidal solution is added with nonpolar organic solvent A having vapor pressure higher than or equal to 10 torr at 25 deg.C and boiling point higher than 65 deg.C under atmospheric pressure and a specific polar organic solvent C having vapor pressure higher than or equal to 10 torr at 25 deg.C and boiling point lower than 65 deg.C under atmospheric pressure thus preparing a mixture liquid. The mixture liquid is then shaken to clean the fine grain iron nitride Y+P and to separate impurities under magnetic gradient. Subsequently, the polar organic solvent C in the mixture liquid is vaporized and the remaining mixture liquid is added with any one B of first oils, esters or ethers and mixed. Subsequently, the nonpolar organic solvent A is evaporated.
Patent JP-S61102406-A (JP)
Inventor: ODA TAKESHI
IPC: A42B1/24
Filed: 1984-10-25
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-S60118230-A (JP)
Title: Structure of connection part of high temperature and high vacuum reaction apparatus
Inventor: KIMURA ETSUJI
IPC: B01D5/00
Filed: 1983-11-30
Abstract: PURPOSE:To enable the use of a usual gasket, by receiving the heated connection neck part of a condensing chamber into the heated connection neck part of a reaction chamber and providing a flange to the leading end of the latter while providing a flange to the former at a position retracted from the leading end thereof. CONSTITUTION:A high temp. and high vacuum reaction apparatus consists of a heated reaction chamber and a cooled condensing chamber connected thereto and is constituted as a highly pressure reduced one as a whole and has a specific structure in the connection parts of the reaction chamber and the condensing chamber. In said structure, either one of the heated connection neck part 50 of the reaction chamber and the heated connection neck part 40 of the condensing chamber is made thicker than the other to receive the leading end of the other and the former has a flange 51a at the leading end thereof while the latter has a flange 44 at a position retracted from the leading end thereof and the former has no heating means at the leading end part thereof and the heating means 51b, 42b of both of them heat inner surface sides while the outer surface sides are covered with a heat insulating material. As a result, the use of a usual gasket 36 is enabled without special cooling and the production cost of the apparatus is reduced to make the operation thereof efficient.
Patent JP-H0273730-A (JP)
Title: Echo canceller
Inventor: OTA GICHU
IPC: H04B3/23
Filed: 1988-09-09
Abstract: PURPOSE:To shorten converging time and to obtain a large echo cancelling quantity by reducing an error correction coefficient supplied to a correction quantity generating circuit in proportion to a delay time (k) of an impulse response. CONSTITUTION:An error correction coefficient generating circuit 15 outputs an error correction coefficient corresponding to a delay time based on the delay time representing the degree of the delay in the sample number (k) from a correction quantity generating circuit 12. Then the error correction coefficient is generated smaller in proportion to the number of time (degree of impulse response to be improved) of the adaptive control operation. When the correction of the impulse response corresponding to the delay time is applied with an error correction coefficient proportional to the delay time in this way, the final impulse reply is reached earlier and the required echo cancelling quantity is obtained in a shorter time.
Patent JP-S6379487-A (JP)
Title: Television signal forming method
Inventor: MATSUMOTO KOJIRO
IPC: H04N19/00
Filed: 1986-09-22
Abstract: PURPOSE:To obtain a laterally long picture having a compatibility with a current system by dividing a picture larger than 4:3 in an aspect ratio into a main picture and a sub-picture, dividing the subpicture into blocks and time base multiplexing and frequency axis multiplexing an average value and a difference value foe every block. CONSTITUTION:The picture largest than 4:3 in the aspect ratio inputted to an input terminal 1 is separated to the main picture signal consisting of an area M of the aspect ratio of 4:3 and the sub-picture signal indicated by a slashed area S in a picture separating circuit 2. the main picture signal M is fed to an NTSC system encoder 3, directly encoded to the NTSC signal and supplied to a time base multiplex circuit 8. The sub-picture signal has the average value calculated for every block of 4X4 samples in an average value detection circuit 4 and is supplied to a subtracter 5 and a time base compression circuit 6. The time base compressed average value is time base multiplexed in a time base multiplex circuit 9, the difference value from the subtracter 5 is time base extended, thereafter multiplexed in frequency axis in a frequency axis multiplexing circuit 10.
Patent JP-H03173638-A (JP)
Title: Antireflection film and manufacture thereof
Inventor: SUZUKI KOICHI
IPC: G03F1/46
Filed: 1989-09-01
Abstract: PURPOSE:To obtain an antireflection preventing film having a large area in low cost, in a multilayer antireflection film formed by laminating a low refractive index film and a high refractive index film, by forming the low refractive index film using composite oxide containing one of Zr, Ti, Hf, Sn, Ta and In and one of Si and B as a main components. CONSTITUTION:In a multilayer antireflection film formed by laminating low refractive index films constituting odd-number layers counted from an air side and high refractive index films constituting even-number layers, each low refractive index film is based on composite oxide containing at least one of Zr, Ti, Hf, Sn, Ta and In and at least one of Si(silicon) and B(boron). By increasing the atomic ratio X of B to Zr from 0 to 3.7, a refractive index continuously lowers from 2.1 to 1.7. Further, in a ZrSiYOZ system, by increasing the atomic ratio of Si to Zr from 0 to 9.0, a refractive index continuously lowers from 2.1 to 1.5.
Patent JP-H1052229-A (JP)
Title: Improvement in quality of egg
Inventor: MATSUMOTO NATSUKI
IPC: A23K1/18
Filed: 1996-08-08
Abstract: PROBLEM TO BE SOLVED: To obtain an egg, excellent in transparency and having a pure-white albumen when whipped by blending a feed for fowls with a caffeine-containing material and supplying the resultant feed to an adult female fowl. SOLUTION: A caffeine containing material such as an extract solution or an extraction residue from coffee beans, tea leaves, cocoa beans and mate tea is blended with a feed for fowls so as to contain >=0.02wt.% material expressed in terms of caffeine. The resultant feed is then supplied to an adult female fowl such as a hen, a duck or a female quail to improve the color tone of the albumen.
Patent JP-2000051696-A (JP)
Title: Production of composite metal catalyst
Inventor: YOSHIDA TAKESHI
IPC: B01J23/58
Filed: 1998-08-07
Abstract: PROBLEM TO BE SOLVED: To produce a catalyst enhanced in heat resistance and having high purifying capacity even after a high temp. durability test. SOLUTION: Substd. Al alkoxide wherein at least one alkoxide group of Al alkoxide is substd. with a chelating agent and a compd. containing at least a compounding metal element of an NOx occluding element and a noble metal and soluble in an org. solvent are mixed in an org. solvent and, after at least Al alkoxide is hydrolyzed, the whole is dried and baked to form uniform composite metal oxide of Al and the compounding metal element. Therefore, the obtained composite metal oxide has a large specific surface area and the dispersibility of the NOx occluding element and the noble metal is enhanced and heat resistance is enhanced.
Patent JP-S60116138-A (JP)
Title: Manufacture of multilayer film
Inventor: HOSAKA TAKASHI
IPC: H01L23/522
Filed: 1983-11-29
Abstract: PURPOSE:To eliminate moisture and contaminants from entering a boundary between films by forming by continuous vapor phase growth a multilayer film using the same vapor phase growing unit. CONSTITUTION:An SiH2Cl gas inlet valve 13 an NH3 gas inlet valve 14 are opened to feed these gases into a reactor 7, and an Si3N4 film is formed on a wafer 9. After the Si3N4 film of desired thickness is formed, the valve 14 is closed to shut off the NH3 gas, and N2O gas is simultaneously fed into the reactor 7, thereby forming an SiO2 film. By this method, the Si3N4 film and the SiO2 film are continuously formed without removing the wafer out of the reactor. Accordingly, no moisture nor contaminents are introduced into the boundary between these films, thereby obtaining boundary characteristics stable for sufficient insulating property.
Patent JP-H0273184-A (JP)
Title: Optical device
Inventor: ONO TSUKANE
IPC: G02B17/00
Filed: 1988-09-08
Abstract: PURPOSE:To eliminate a need of skilled worker's assembling by forming at least two optical elements out of optical elements constituting an interference optical system into one body with synthetic resin or glass. CONSTITUTION:An optical device 1 consists of a laser light source 2, an optical apparatus 3 consisting of plural optical elements or the like, and a photodetector 4. With respect to the optical apparatus 3, optical elements consisting of a substrate 5 formed with a square plane, triangular prisms 7a to 7d having 90 deg. vertical angles which are placed on respective apexes of the square of the substrate 5, a triangular prism 7e having 90 deg. vertical angle which is placed between triangular prisms 7b and 7c and has the apex directed outward, and a triangular prism 7f which is placed between triangular prisms 7a and 7d and has a prescribed vertical angle larger than 90 deg. are formed into one body with an acrylic synthetic resin. Consequently, skilled worker's assembling is unnecessary when respective optical elements have optical axes aligned and are positioned in a mold 9, and the variance of precision for assembling is eliminated.