baber/WOPTO huggingface dataset:
Patent JP-2000033552-A (JP)
Title: Abrasive cloth and semiconductor device manufacturing method using the abrasive cloth
Inventor: YANO HIROYUKI
IPC: B24B37/20
Filed: 1999-04-26
Abstract: PROBLEM TO BE SOLVED: To heighten the flattening performance to a material to be polished, obtain a stable polishing speed and restrain the generation of scratch by forming an abrasive cloth of a base material for mechanically polishing the surface of a material to be polished, and fine grains dispersed in the base material, which is soluble to a solvent. SOLUTION: A water-soluble filler 12 formed of cellulose is dispersed and mixed in a base material 11 made of polystyrene. As the base material 11 is hard and the water-soluble filler 12 is solid, they are hard to be compressed, so the compressive elastic modulus of abrasive cloth 10 is 10 Gpa or more. When the water-soluble filler 12 is exposed on the surface of the abrasive cloth 10, it is dissolved in water to increase the surface area and become soft, so that in polishing, no scratch is formed on the surface of the material to be polished and the retainability of slurry can be improved. Thus, the polishing speed can be improved, and a scratch produced in the surface layer of the material to be polished can be restrained. Further, flattening can be improved.
Patent JP-S63284463-A (JP)
Title: Method for determining decomposition residue of crosslinking agent of crosslinked polyethylene
Inventor: KOIDE TOSHIO
IPC: G01N30/88
Filed: 1987-05-15
Abstract: PURPOSE:To measure the quantities of respective ions without being disturbed by co-existing other components by using a mass spectrograph for a detector for a gas chromatograph and making component detection by specific M/Z (M is mass and Z is electric charge). CONSTITUTION:An internal standard soln. is added to the extraction liquid obtd. by subjecting a crosslinked polyethylene to solvent extraction and the liquid is separated to respective components by the gas chromatograph mass spectrograph. The quantity of the respective ions of M/Z of the plural compds. corresponding to this internal standard liquid and the decomposition residue of the crosslinking agent are thereby measured. The ratio of the quantity of the response ions (peak area or peak height) between the component corresponding to the internal standard soln. and the compd. corresponding to the decomposition residue of the crosslinking agent is determined and the concn. in the decomposition residue of each crosslinking agent in the sample soln. is determined from the calibration curve previously formed by using the standard soln., by which the decomposition residues of the plural crosslinking agents from the crosslinked polyethylene are simultaneously detected and determined with good accuracy.
Patent JP-S5819503-A (JP)
Title: Size measuring device
Inventor: NISHINA SHINGO
IPC: G01B21/02
Filed: 1981-07-28
Abstract: PURPOSE:To read the measured value readily and to find the volume sense of the measured value or the state of approach to a limit value intuitively, by displaying the measured value, preset data, measuring data, and the like all together, in response to the movement and displacement of a measuring probe. CONSTITUTION:A minimum read out preset device 18, a milimeter and inch measuring device 16, and a preset device 20 which presets the plus or minus display direction in a digital display device 24 for the moving direction of the probe (not shown) and the moving direction of a pointer of an analog display device 26 are provided. The movement and displacement of the measuring probe are converted into an electric signal and further converted (14) into a signal which is suitable for the operational process. Then the output of the converter 14 is counted 22, digitally displayed 24 in response to the measured signal, and displayed 26 in an analog form through a signal processing circuit 28 and a driving circuit 30.
Patent JP-H11312367-A (JP)
Title: Method for removing distortion of signal
Inventor: SATO YASUTAKA
IPC: G11B20/10
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To correct a distortion without being largely changed from an original reproduced signal by analyzing the distortions one waveform each for all frequencies provided in the regenerative signal of a digital recording medium and performing subtraction or addition one bit each for a data byte forming the part where the distortion occurs. SOLUTION: A peak/mean value detection circuit 12 and a change rate detection circuit 13 measure a peak value, a mean value and a change rate of source data separated from the CD reproducing data inputted by an input buffer 10. A CPU 15 judges as a distorted byte from the measured result when the change rate becomes 0 or above after 2-5 sampling clocks from the peak value, and subtracts a subtracter 16 by one bit. The CPU 15 repeats the operation until the distortion is gone, that is the change rate becomes 0, and moves to a next byte, and repeats the operation similarly to end the whole bytes. Thus, the peak part occurring in the vicinity of the original peak due to the distortion is canceled to be reproduced.
Patent JP-H11311250-A (JP)
Title: Magnetic bearing device
Inventor: MARUYAMA TERUO
IPC: H02K7/09
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To considerably reduce heating caused by the eddy current loss of an electromagnetic steel plate of a magnetic bearing in order to attain high speed and high rigidity of a spindle in a magnetic bearing spindle used for production machine or the like. SOLUTION: On the fixed side of a radial bearing composed of a plurality of magnetic poles, the magnetic poles are formed in such shape that magnetic flux density distribution formed between the inner surface of these magnetic poles and a rotor 1 on the rotating side of the radial bearing has inclined distribution toward the center of the magnetic pole from the end parts of the magnetic pole. The change rate of magnetic flux density when a rotor is shifted from one magnetic pole to the other is therefore made small to reduce eddy current loss and heating.
Patent JP-S599768-A (JP)
Title: Initializing device of data processor
Inventor: TAKI KAZUO
IPC: G06F1/24
Filed: 1982-07-09
Abstract: PURPOSE:To prevent destruction of content of storage of a main processor, by performing initialization of the main processor by a service processor (SVP) only once at originally required time. CONSTITUTION:When the power source device 12 of SVP1 is turned on, own initializing program of SVC incorporated in PROM13 for automatic starting of SVP1 operates and initializing operation of a main processor 2 is started by the SVP1. By turning on of the power source device 12, SVP1 inputs a state signal 34 that indicates make and break of the power source 22 of the main processor 2, and read it through a register 16. On the other hand, as flip- flop 24 is reset when the power source 22 of the main processor 2 is turned on, SVP1 judges the initializing of the main processor 2 is not completed, and executes initializing program. When it is completed, the flip-flop is made to a set state to prevent another initialization.
Patent JP-S63283036-A (JP)
Title: Field-effect transistor
Inventor: ITO SAKANORI
IPC: H01L21/60
Filed: 1987-05-14
Abstract: PURPOSE:To decrease the number of bonding wires and to enlarge series inductance produced by the bonding wires, by bonding the wires extended from a transistor via interbonding patterns. CONSTITUTION:On a stem 10, there are arranged a transistor chip 4 and a chip capacitor 5 or dielectric substrates 2 and 3. These are connected to each other by means of bonding wires 11 to provide a field effect transistor. A relay inter-bonding pattern 1 to which a plurality of wires 11 can be connected is provided on each of capacitor 5 and the substrates 2 and 3. The wires 11 are connected to the main patterns on the capacitor 5 and the substrates 2 and 3 via these inter-bonding patterns 1. In this manner, a number of bonding wires can be decreased and the wires 11 are allowed to produce larger series inductance.
Patent JP-S5742516-A (JP)
Title: Production of silicon nitride
Inventor: YAMAGUCHI MASAMI
IPC: C01B21/068
Filed: 1980-08-29
Abstract: PURPOSE: An alkali silicate is treated in a liquid system containing a carbonaceous powder to form silicic acid and the resultant mixture of silicic acid/the carbonaceous powder is heated in a nitrogen atmosphere to produce high-purity α-type silicon nitride readily.  
     CONSTITUTION: An alkali silicate aqueous solution is acidolyzed, dealkalized or a hydrolyzable silicon compound such as ethyl silicate or silicon halide is hydrolyzed in a liquid system containing a carbonaceous powder such as carbon black, graphite or activated carbon to form silicic acid. The weight ratio of the carbonaceous powder to the silicic acid is 0.3W5C to 1 SiO 2 . The resultant mixture of the carbonaceous powder/the silicic acid is heated in a nonoxidative atmosphere containing nitrogen at about 1,300W1,600°C to produce α-type silicon nitride of high quality. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S60261295-A (JP)
Title: Electret capacitor microphone
Inventor: BABA HIROYUKI
IPC: H01G7/02
Filed: 1984-06-08
Abstract: PURPOSE:To prevent the degradation of frequency characteristic and oscillation- proof characteristic due to pinholes or the like of soldering to improve the reliability by constituting a back air chamber with a pan-shaped metallic terminal board and separating an attaching part of FETs and the back air chamber from each other. CONSTITUTION:A collar part 13a of a pan-shaped metallic terminal board 13 having the collar part 13a and a projecting part 13b is placed on a step part 12a of an insulator 12, and a metallic ring 3, a diaphragm 4, and a fixed electrode 6 combined with an insulating spacer 5 are placed on the collar part 13a, and a lead 8a of an FET8 is brought into contact with the projecting part 13b elastically. A back air chamber 14 is constituted with the terminal board, and the back air chamber is so constituted that it is separated from the attaching part of the FET to a printed circuit board. Since the back air chamber 14 is not connected to the outside even if pinholes or the like are generated in a soldering part 10, the degradation of characteristics is prevented.
Patent JP-H08311955-A (JP)
Title: Flushing device
Inventor: MATSUI KAZUO
IPC: E03D1/30
Filed: 1995-05-17
Abstract: PURPOSE: To separate a valve body from a valve seat after water is drained and prevent the freezing of the valve body on the valve seat by canceling a spring force of a shape-memory spring at or over a specified temperature around a freezing point and eliminating the spring force at or below the specified temperature. CONSTITUTION: In the case when water is drained by a drain device 5, a diagram valve or a piston valve is provided and a valve (a) is forcibly opened, thereby holding the valve in an open state. In this case, a shape-memory spring 48a, which eliminates the spring force at or below a specified temperature around a freezing point, is employed. The valve (a) is opened in automatic mode when the temperature fails to exceed the specified temperature around the freezing point. Furthermore, the valve body 43 is arranged to be separated from the valve seat 49. The valve body 43 separates forcibly the valve (a) in a closed state in contact with the valve seat 49 even in such a state in which water is drained, thereby preventing the freezing of both the valve body 43 and the valve seat 49.  It is, therefore, possible to use immediately the valve by passing water once again by releasing the forcible opening of the valve 8a) after the danger of freezing has disappeared.
Patent JP-S60261216-A (JP)
Title: Multiplexer
Inventor: MORIYA MASARU
IPC: H03K3/356
Filed: 1984-06-08
Abstract: PURPOSE:To constitute a multiplexer of a small number of transisters (TRs), and to eliminate a DC current by supplying an output of a transfer gate by p and n type TRs to one of two cross-connected invertors. CONSTITUTION:The first and the second input signals DA, DB and a selecting signal SEL are applied to a transfer gate by MOS transistors TR8, 9 of n type and p type of a multiplexer, and an output signal B from a gate is outputted in accordance with a low or high level of the signal SEL. This output signal B is inputted to the first invertor constituted of MOS TRs 10, 11, and the second invertor constituted of MOS TRs 12, 13. An FF is constituted of said first and second inertors, and an output signal Q by which a DC current does not flow is outputted from this FF. Also, the multiplexer is constituted of a small number of TRs, and the circuit is simplified.
Patent JP-H08314214-A (JP)
Title: Image forming device
Inventor: TACHIBANA TATSUTO
IPC: B65H7/02
Filed: 1995-05-17
Abstract: PURPOSE: To suppress the possibility of an erroneous detection of a sheet material to irreducible minimum, in a device provided with a means for calculating the timing of the tailing edge of the sheet material, at the time of forming an image. CONSTITUTION: A tail edge detecting and controlling means 5 executes selective driving for tail edge detection processing 50A for calculating the timing of the tail edge of a form, based on the size of the form fed from a cassette paper feeding mechanism 18 for feeding a known regular size form, in it and tail edge detection processing 50B for calculating the timing of the tail edge of the form, based on a sensor signal from a paper sensor 27 detecting the tail edge of the form during feeding, in the paper fed from an MPT paper feeding mechanism 19 for feeding an unknown irregular size form, in accordance with a difference in a paper feeding port, so that the timing of the tail edge of the form is calculated.  Thus, image mask processing on the tail edge of the sheet material is accurately executed even from the MPT having an irregular size sheet material and a cassette unstable in the sensor signal.
Patent JP-H06334428-A (JP)
Title: Antenna system
Inventor: HIGUCHI HARUICHI
IPC: H01Q3/36
Filed: 1993-05-20
Abstract: PURPOSE:To obtain the antenna system by which an arrived radio wave is quickly acquired with simple configuration. CONSTITUTION:Output signals from antenna elements A1, A2, A3, A4 are received by a combiner 1 via phase shifters B1, B2, B3, B4 and combined therein. A main beam direction in the combined radiation directivity is controlled by controlling a phase shift in the phase shifters B1, B2, B3, B4. The main beam direction is quantized at a predetermined quantization interval. Then a mode number corresponding to the quantized main beam direction is generated by a CPU 20. The mode scanning is roughly implemented in the initial acquisition and the initial grasp mode with a large combined reception level is obtained. A peripheral mode of the initial grasp mode is scanned in detail thereafter and the initial grasp mode is obtained, in which the combined reception level is maximized.
Patent JP-S62275902-A (JP)
Inventor: SHINBASHI TSUGUO
IPC: B65F5/00
Filed: 1986-05-23
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-S5545640-A (JP)
Title: Exo-5-methyl-endo-2,3-trimethylene norbornane
Inventor: TAKAISHI NAOTAKE
IPC: C07C13/54
Filed: 1978-09-27
Abstract: NEW MATERIAL:Exo-5-methyl-endo-2,3-trimethylene norbornane of formula I.  
     USE: Raw material of methyladamantane. It can be isomerized to methyladamantane in high yield, using an acid catalyst.  
     PROCESS: The compound I is prepared by irradiating exo-5-bromomethyl-endo-2,3- trimethylene norbornane II with light, in an inert solvent such as n-pentane or n- hexane, in the presence of an aliphatic tertiary amine such as trimethylamine, dimethylcyclohexyl-amine, etc. The compound II, which is a novel compound, can be prepared easily, by reacting exo-5-hydroxymethyl-endo-2,3-trimethylene norbornane with phosphorus tribromide, under the condition for the bromination reaction of an alcohol. The inert solvent for the first reaction is not reactive to the raw material II and is to be highly transparent to the radiation. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H0418270-A (JP)
Title: Easily openable sealed packaged body
Inventor: TAKAGAKI TADAO
IPC: B65D77/20
Filed: 1990-05-10
Abstract: PURPOSE:To obtain a packed body which has a stable pressure resistant sealability and a smooth easy-openability by a method wherein at a heat-sealing part of a lid, fine recessed parts are formed, and after filling a content in a container main body, a flange and the lid are heat-sealed extending the whole surface of the flange in such a manner that the sealing strength becomes not less than the laminate strength between the lid and a seal layer. CONSTITUTION:A packaged body consists of a container main body 2 and a lid 1. The lid 1 is constituted of a multi-layer constituted body with two or more layers, of which laminate strength between a seal layer 5 and the adjacent layer 6 is 300 - 2000g/25mm<2>, and the thickness of the seal layer 6 is 10 - 70 mum. The lid 1 to be used has a heat-seal part which corresponds with a flange 3 of the container main body and is heat-sealed, and on which fine recessed parts 4 are formed. A content is filled in the container main body 2, and the flange 3 and said lid 1 is heat-sealed extending the whole surface of the flange in such a manner that the sealing strength becomes not less than the laminate strength between the seal layer 5 and the adjacent layer 6. The packaged body has a stable sealability, and has a stable peel feeling even when a strict positioning is not performed in the heat-seal process.
Patent JP-H0416133-A (JP)
Title: Method for nutriculture of plant utilizing root
Inventor: SHIBAMOTO SHINGO
IPC: A01G31/00
Filed: 1990-05-10
Abstract: PURPOSE:To cultivate a plant at a low cost by placing a cylindrical unit of a specific shape having a fine granular cotton-packed bed formed therein on a cultivation bed where a culture solution flows down, placing the aforementioned cylindrical unit on a new cylindrical unit of the same construction, when root parts of the plant elongate through the lower end of the cylindrical unit. CONSTITUTION:A cultivation bed composed of a cylindrical unit, having a fine granular cotton-packed bed with a packed height so as to feed a culture solution to the top end face when the cylindrical unit is placed on the cultivation bed, where the culture solution flows down formed therein, and the same height as that of the fine granular cotton-packed bed and provided with plural notched parts or through-holes on the outer periphery of the lower end is placed on the aforementioned cultivation bed. Seeds or seedlings of a plant growing by utilizing roots thereof are planted in the upper surface layer of the fine granular cotton- packed bed. The culture solution is then fed through the notched parts or the through-holes and the fine granular cotton-packed bed to grow the seeds or seedlings of the plant. When the root parts are elongated to the surface layer of the lower end of the fine granular cotton packed bed, the cultivation bed in which the above-mentioned root parts are elongated to the surface layer of the lower end of the fine granular cotton-packed bed is placed on another cultivation bed of the aforementioned construction placed on the above-mentioned cultivation bed.
Patent JP-S60263312-A (JP)
Title: Magnetic recording medium
Inventor: TOGAWA FUMIO
IPC: G11B5/64
Filed: 1984-06-09
Abstract: PURPOSE:To obtain a magnetic recording medium which excels in the anticorrosion performance, the driving stability and durability, by forming a back coat layer having the voids set within a specific percentage on the back side of a substrate containing a ferromagnetic thin metallic film on its surface and putting a lubricant into the void. CONSTITUTION:A filler of the fine powder of CaCO3, BaSO4, carbon black, MoS, etc. having 0.01-5mu grain sizes and different bulk densities is applied on the back side of a substrate containing a ferromagnetic thin metallic film on its surface together with the binder resin, an organic solvent, etc. and dried. Thus a back coat layer is obtained with the voids set within a 10-40% range. Then a lubricant of the fatty acid, fatty acid ester, silicone, etc. and especially an organic solvent solution of a lubricant having function groups COOH, PO(OH)2, etc. having affinity with the ferromagnetic thin film is applied or sprayed to the back coat layer. Thus a lubricant having a 10-80mg/m<2> range is put into the void. In such a way, a lubricant is permanently supplied to the ferromagnetic thin film. This improves the driving stability and durability of a magnetic recording medium.
Patent JP-S5819314-A (JP)
Title: Continuous copolymerization of ethylene/vinyl acetate
Inventor: SATOU KENJI
IPC: C08F2/04
Filed: 1981-07-28
Abstract: PURPOSE:To prevent the formation of gel-like matter, by specifying the third component and the relationship among the conversion of vinyl acetate, the dwell time within a polymerization tank and the half-life of an initiator, in the titled polymerization process using a lower alcohol solvent and a radical initiator. CONSTITUTION:In the production of a copolymer of formulaI, wherein R is H or methyl, R' is methyl or COOR, X, Y and Z are numbers which satisfy the relationships of formulas II and III; a 1-4C alcohol is used as a polymerization solvent, a radical intitator is used and the solvent concentration is set at below 20wt%. Further, the reaction mixture is continuously polymerized at a temperature of 50-80 deg.C under a condition of formula IV, wherein X is the conversion of vinyl acetate and is below 0.85, THETA is an average dwell time within the polymerization tank and theta is the half-life of the initiator. In this polymerization, the kind and amount of the third component other than ethylene and vinyl acetate need to be controlled as specified in formulasI-III. Unless the conversion (x) of vinyl acetate, THETA and theta are selected so as to satisfy formula IV, no effect can be obtained.
Patent JP-S6018420-A (JP)
Title: Four-wheel drive vehicle
Inventor: WADA HIROSHI
IPC: F16H48/30
Filed: 1984-06-12
Abstract: PURPOSE:To have the four wheels of a four-wheel drive vehicle function to the maximum by use of a central differential gear equipment which is used in the vehicle by transversely pivoting driving bevel pinions on a carrier and setting a trifle gear ratio on driven bevel gears. CONSTITUTION:In a central differential gear equipment which is used in a four- wheel drive vehicle, front and rear driven bevel gears 2 and 3 faces each other and concentrically pivoted inside a gear case 1 and joints 6 and 7 which connect the supporting shafts 4 and 5 of the gears 2 and 3 to front and rear propeller shafts, respectively are disposed at the ends of the shafts 4 and 5 projecting from a gear case 1. Both the gears 2 and 3 have different numbers of teeth. A drive carrier 8 is concentrically pivoted around both the gears 2 and 3 and a pair of driving bevel pinions 9 which are pivoted on the inner face of the carrier are meshed with both the gears 2 and 3. Said carrier 8 is meshed with the output gear of a transfer transmission via a driven gear 11. A torque ratio may be satisfactorily distributed according to different grounding forces demanded of front and rear wheels, as far as possible.