baber/WOPTO huggingface dataset:
Patent JP-S63170220-A (JP)
Title: Barium ferrite magnetic powder and its production
Inventor: ODAN KYOJI
IPC: H01F1/11
Filed: 1987-01-09
Abstract: PURPOSE:To obtain the titled magnetic powder which is suitable for magnetic recording medium for high-density recording and has narrow particle size distribution, high saturation magnetization and required coercive force, by subjecting slurry wherein a specified starting raw material is dissolved in water and NaOH is added to produce ppt. to hydrothermal treatment and thereafter mixing flux with the produced ppt. and calcining the mixture and washing it. CONSTITUTION:A starting raw material consisting of the compd. of respective elements having the proportion of 3-11g atom Fe<3+> for 1g atom Ba, (x)g atom M1 (one or more kinds of metals selected from among Ni, Co, Cu, Mg, Mn and Zn) for 12-2xg atom Fe<3+>, (x-y)g atom M2 (one or more kinds of metals selected from among Ta, Sb, Nb, Zr and Ti) and (y) g atom Fe<2+> is dissolved in water. Then slurry wherein alkali hydroxide is added to this aq. soln. so that the concn. in the soln. after mixing is regulated to >=3mol/l to produce ppt. is subjected to hydrothermal treatment at 130-270 deg.C. After washing produced fine crystalline ppt. with water, 10-180wt.% flux such as NaCl is mixed therewith and the mixture is calcined at 700-950 deg.C and washed and the titled hexagonal lamellate magnetic powder shown in formula (n=0.8-1.0, x=0.5-1.5, y=0.01-1.5 and x>=y) is obtained.
Patent JP-H09193146-A (JP)
Title: Drilling refuse and dust protecting device of drilling apparatus
Inventor: HERUMUUTO BURUGERU
IPC: B23Q16/00
Filed: 1997-01-09
Abstract: PROBLEM TO BE SOLVED: To operate a gap filling element in close connection with the rotary part of a drilling apparatus. SOLUTION: In the drilling refuse or dust protecting device of a drilling apparatus having the flange part 1 provided in order to be fixed to the housing 23 of a drilling apparatus, the container 2 connected to the flange part 1 so as to be compressible in parallel to the length direction of the flange part 1 and the annular gap filling element 3 coming into contact with the rotary part of the drilling apparatus, the gap filling element 3 is arranged to the cavity 26 opened to the center of the flange part constituted so as to surround the gap filling element in a freely rotatable manner.
Patent JP-S63170661-A (JP)
Title: Dry process developer and image forming method using said developer
Inventor: OKADO KENJI
IPC: G03G9/083
Filed: 1987-01-09
Abstract: PURPOSE:To obtain a developer which obviates filming or a cleaning defect of a latent image carrier and has an excellent cleaning effect by constituting the developer of a nonmagnetic toner and magnetic particles which have a specific true sp. gr., volume mean particle size and volume distribution and are coated with an electrical insulating resin. CONSTITUTION:This developer is constituted of the nonmagnetic toner and the magnetic particles which have <=6 true sp. gr., 40-65mum volume mean particle size and the volumetric distribution 5-20wt.% 28-35mum and <=5wt.%<28mum and are coated with the electrical insulating resin. Since the magnetic particles having the small grain sizes of <=35mum are incorporated into the developer in the above-mentioned manner, the small-diameter magnetic particles stick onto a latent image carrier to provide a grinding effect to grind and remove the toner. The excellent image having a high density is thereby obtd. from an initial period with the simple constitution. The developer which obviates the filming and cleaning defect of the latent image carrier even after long-term use and has the excellent cleaning characteristic is thus obtd.
Patent JP-H08190606-A (JP)
Title: Optical character reader
Inventor: MIYAO SHIGERU
IPC: G06K9/00
Filed: 1995-01-10
Abstract: PURPOSE: To improve the efficiency of form read processing by automatically gathering and setting information for character recognition in the device without making the time of the form read processing long. CONSTITUTION: A head sheet for inputting attribute information for recognizing characters on a form is added in front of a detail sheet for reading actual contents, and attribute information on a position in the character frame on the detail sheet, the kind of a character in the frame, etc., is obtained from the head sheet. This obtained attribute information is automatically set in a character recognition part 6 and control data obtained on the basis of the attribute information are set in a scanner part 1, an in-frame information gathering part 2, etc., thereby eliminating the need to send the data to the reader each time the form is read in or each time the format of the form to be read is changed.
Patent JP-S63301890-A (JP)
Title: Production of alpha-benzylidene-acetonitrile phosphates
Inventor: SAKOTA RYOZO
IPC: C07F9/40
Filed: 1988-01-08
Abstract: PURPOSE:To obtain the titled substance useful as an intermediate for a polysubstituted phosphonate derivative, a synthetic intermediate for conjugated diene or an intermediate for drug, by reacting a specific aldehyde with a specific acetonitrile phosphonate in the presence of a secondary amine and an alpha-halogeno fatty acid. CONSTITUTION:An aldehyde shown by the formula ArCHO [Ar is F, Cl, Br, nitro, chloromethyl or (substituted)phenyl] is reacted with an acetonitrile phosphonate shown by formula I [R<1> and R<2> are 1-12C aliphatic or R<1> and R<2> are bonded to form (1-3C alkyl-substituted) 1,2-ethylene] in the presence of a secondary amine shown by formula II [R<3> and R<4> are 1-4C alkyl or R<3> and R<4> are bonded to form (1-2C alkyl-substituted)1,4-butylene] and an alpha- halogeno fatty acid shown by formula III (X is halogen; R<5> and R<6> are H, halogen or 1-4C alkyl) to give the aimed compound shown by formula IV.
Patent JP-H06206716-A (JP)
Title: Easily graphitizable high strength carbon material and its production
Inventor: NISHIZAWA SETSU
IPC: C01B31/02
Filed: 1993-01-08
Abstract: PURPOSE:To provide a high strength, easily graphitizable carbon material excellent in strength, thermal impact resistance and smoothness and free from troubles such as the falling of carbon from its surface, and to provide the method for producing the same. CONSTITUTION:The carbon material is obtained by simultaneously subjecting a thermosetting resin baked at a low temperature of 800-1700 deg.C to both a pressing treatment and a heating treatment in the presence of a graphitization catalyst. The easily graphitizable carbon material is graphitized by a beat treatment at 3300K under the ordinary pressure. The carbon material has a flexural strength of >=1600Kgf/cm<2>, a net specific gravity of 1.65-2.05, a gas permeation degree of substantially zero, and a homogeneous microstructure.
Patent JP-S57121419-A (JP)
Title: Spark erosion machine
Inventor: ISHII TAKASHI
IPC: B23H1/02
Filed: 1981-01-12
Abstract: PURPOSE:To accomplish most efficient automatic spark erosion machining by detecting voltage at the spark gap, judging actual work condition and thereby moving the electrode intermittently up and down. CONSTITUTION:Pulse voltage is imposed between an electrode 1 and the work 2 by a power source 3, and the electrode feeding is made by an electrode feed motor 7. The condition of gap is detected by a gap-voltage detector 4, and the output therefrom is sent through a comparator 5 to a driving circuit 6 which controls the electrode feeding, accordingly. In addition, a control circuit 8 is provided to move the electrode intermittently up and down to flush out the erosion products. The control circuit 8 works only when an up-down-motion selecting button 9 is on and the output indicating the actual work condition is given by the gap-voltage detector 4. Thus, unnecessary up-down movements during no machining time are eliminated and effective automatic machining is performed.
Patent JP-H01177705-A (JP)
Title: Adjusting circuit for agc detector
Inventor: MIYAHARA YASUTOKU
IPC: H03G3/30
Filed: 1988-01-08
Abstract: PURPOSE:To obtain an adjustment circuit setting the adjustment range of an output voltage without deviation by adopting the constitution such that a prescribed ratio of offset is given to a couple of output currents fetched from an AGC detector. CONSTITUTION:When adjustment voltage fed to an adjustment terminal 17 is equal to a constant voltage VB2, collector currents IC10, IC11 of TRs Q10, Q11 have a ratio of n:1. This means that collector currents IC4, IC5 of TRs Q4, Q5 have a ratio of n:1. Thus, a prescribed offset is provided when the adjustment voltage of detection voltages V1, V2 at no signal is equal to VB2. Then the offset voltage is set so that the voltages V1, V2 caused when the collector currents IC4, IC5 of TRs Q4, Q5 are equal have equal amplitude and different polarity, then the center level of the variable range of the adjustment voltage is made equal to the voltage VB2 and the adjustment range is set without deviation.
Patent JP-S58119192-A (JP)
Inventor: KAMIKAWA MICHIHARU
IPC: B32B7/02
Filed: 1982-01-09
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-H05190242-A (JP)
Title: Method for forming waterproof structure and waterproof structure formed by this method
Inventor: SAWAMURA NAOTO
IPC: H01R43/00
Filed: 1992-01-09
Abstract: PURPOSE:To apply a beam of light to photo-curing resin in the case of forming a waterproof structure by sealing a clearance part with the periphery surrounded. CONSTITUTION:The peripheral part of a wire harness 2 is coated with a tape in a condition that one end of a circular pipe-shaped light transmitting means (optical fiber) is inserted. Photo-curing resin 12 is injected mutually between electric wires 3 through the light transmitting means. The wire harness 2 is inserted to a grommet 10. A light beam source 18 is connected to the other end of the light transmitting means. A beam of light from the light beam source 18 is applied to the photo-curing resin 12 through the light transmitting means.
Patent JP-S61163082-A (JP)
Title: Double arch-shaped hull bottom transverse construction
Inventor: NAGAO MASAO
IPC: B63B3/26
Filed: 1985-01-10
Abstract: PURPOSE:To optimize a load bearing and to enlarge the width of a center tank of a ship by providing arch-shaped bottom transverses each having a downward concave on both sides of a center girder by the transverses. CONSTITUTION:A center girder 2 is provided on the bottom of a center tank of an oil tanker along the center line of the bottom and bottom transverses 12 are connected to the center girder 2 on both sides thereof. Each transverse 12 is arch-shaped with a downward concave upper surface 12a. The transverses 12 hold the center girder 2 while suspending it. Thus, by making effective use of the arch effect of the bottom transverses, the load bearing of the center girder 2 and the bottom transverses 12 can be optimized and a stable bottom transverse structure with a sufficient strength can be obtained while simplifying the structure.
Patent JP-S58120379-A (JP)
Title: Solid-state image pickup device
Inventor: IDA MASATOSHI
IPC: H04N5/335
Filed: 1982-01-11
Abstract: PURPOSE:To output an exposing photometry signal quickly and suitably together with a picture signal in using the same photodetector with a simple constitution, by providing some circuits such as photometric picture element selection circuit for a signal pickup means from the photodetector. CONSTITUTION:Plural switching elements 2, 3 are arranged in matrix and horizontal and vertical scanning circuits 4, 5 are connected to the elements 2, 3, and the picture signal from the elements 2, 3 is picked up. The photometric picture element circuits 8, 9 are connected to the circuits 4, 5, and terminals A1-AN, B1-BM supplying the selecting signals are connected to the circuits 8, 9. Further, a pickup/photometry selecting circuit 13 connected to instruction selecting signal input terminals 10A, 10B is connected to the circuits 4, 5 and 8. A picture signal outut terminal 11 and a photometric signal output terminal 12 are connected to switching elements 16, 17 at the output side, and a instruction selection signal input terminal 10C is connected. The exposing photometric signal is outputted together with the picture signal quickly and suitably by using the same elements 2, 3.
Patent JP-S5595345-A (JP)
Title: Metalizing method of sapphire
Inventor: MIZUNOYA NOBUYUKI
IPC: H01L23/52
Filed: 1979-01-12
Abstract: PURPOSE: To form a metallized layer which has a high bonding strength between attached material and surface of sapphire.  
     CONSTITUTION: A metalized layer in which some glass components are added into a powder of Mo or W, is baked on a surface of sapphire 1. With this glass component, wetting property to the surface of sapphire is improved and a strong bonding is obtained, and also the powder is well combined. The glass component is, on consideration of atmosphere of the metalizing treatment, the termal expansion coefficient and the bonding strength, alumina as the main component and silica is added with mol ratio 1:8 and is mixed. By forming an Ni plated layer 3 on the metalized layer, immersion of solder into the layer 2 is prevented when the brazing is made. Then, an attached metal 5 is bonded with solder 4. An alloy having a thermal expansion coefficient close to that of sapphire is used for the metal 5, and the soldering is made using an Ag solder etc. having lower melting point than that of the layer 2. With this method, it is able to bond strongly an attached metal on sapphire. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H03208907-A (JP)
Title: Measuring method for level by speed difference of surge of sand surface for manufacturing sand pile
Inventor: HIRAMATSU MASAO
IPC: G01F23/292
Filed: 1990-01-11
Abstract: PURPOSE:To make it possible to measure a variation in the sand level easily and accurately by receiving an oscillation wave from a wave oscillation device provided floatingly on the upper surface of sand thrown into a casing pipe by the upper part of the casing pipe. CONSTITUTION:A casing pipe 3 is penetrated into the ground, and after sand 4 is thrown thereinto, a wave oscillation device 18 of a sound, light, etc. is provided floatingly to the sand surface 5. After that, during the withdrawing of the casing pipe 3, the wave oscillation device 18 is oscillated, and an oscillating wave is received by a wave receiving detector 22 mounted to the upper part of the casing pipe 3. Operation processing of a received detected value is made an operation recorder, and the sand level is calculated in conformity with the variation.
Patent JP-H03207783-A (JP)
Title: Vibration-absorbing member
Inventor: HIGASHIYAMA KAZUYASU
IPC: F16F13/08
Filed: 1990-01-11
Abstract: PURPOSE:To provide a vibration-absorbing member having a low inherent vibration number and a small vibration transmission degree by sealing a composition into an external material comprising a specific solid viscoelastic substance, the composition being prepared by adding a flaky filler to a specified viscoelastic liquid. CONSTITUTION:(A) A composition prepared by adding (ii) a flaky filler preferably comprising glass or mica to (i) a viscoelastic liquid having an elastic modulus of 10<2>-10<5>dyne/cm<2> and a viscosity of >=10 poise, such as silicone oil, polyethylene glycol or fluidized paraffin is sealed into (B) an external material having an elastic modulus of 10<6>-10<10>dyne/cm<2> and a loss coefficient of >=0.15, such as butyl rubber or PVC to provide the objective member.
Patent JP-H01178509-A (JP)
Title: Preparation of water-absorbing resin
Inventor: SAOTOME KAZUO
IPC: C08F2/10
Filed: 1988-01-11
Abstract: PURPOSE:To form a water-absorbing resin in which a monomer scarcely remains and which has little soluble part for a short reaction time, by polymerizing mildly an aq. mixture of slurry acrylic acid wherein an alkali metal salt of acrylic acid precipitated in the initial stage of polymn. is dispersed under a reduced pressure. CONSTITUTION:An aq. mixture contg. a monomer contg. at least 70wt.% acrylic acid 60-90mol.% of carboxyl groups of which are neutralized with an alkali metal salt (pref. Na salt) and a radical initiator and wherein the alkali metal salt of acrylic acid precipitated in the initial stage of polymn. is dispersed in a slurry-like state is polymerized under a standing condition without stirring under a reduced pressure of 0.1-0.9atm. Precipitates of the alkali metal salt of acrylic acid contained in the monomer mixture promote smooth generation of steam in the early stage of polymn. and are dissolved and transferred to a polymer with the progress of the reaction to form a water-absorbing resin wherein the monomer scarcely remains and which contains little soluble part for a short reaction time.
Patent JP-H08189593-A (JP)
Title: Self-traveling type covering pressurizing device
Inventor: OKANO YOSHIHIRO
IPC: F16L58/18
Filed: 1995-01-11
Abstract: PURPOSE: To provide a self-traveling type covering pressurizing device by which pressurizing operation can be simply and smoothly performed by eliminating a clearance called an air void generated when a joint part of piping is covered with a thermally contractible tube for anticorrosion. CONSTITUTION: A pair of carriages 3 and 3' to revolve around a tubular body 1 by being supported by a pair of flexible support belts 2 and 2' to fasten an outer peripheral wall 1a of the tubular body 1, are provided, and rails 4 and 4' are straddlingly arranged between both carriages 3 and 3', and pressurizing bodies 5 are movably installed, and positioning plates 6 and 6 are installed outside a pair of carriages 3 and 3', and holding wheels 11 arranged on the carriages 3 and 3' are contacted with the positioning plates 6, and the carriages 3 and 3' are revolved along the positioning plates 6 and 6, and positions of the pressurizing bodies 5 are held in a stable condition, and pressurization is performed.
Patent JP-S62160485-A (JP)
Inventor: KONNO KAORU
IPC: G09G5/02
Filed: 1986-01-09
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-2000206409-A (JP)
Title: Zoom lens and projection device having the same
Inventor: SUGAWARA SABURO
IPC: G02B13/18
Filed: 1999-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a telecentric and compact zoom lens whose back focus is long while obtaining satisfactory optical performance. SOLUTION: This zoom lens is provided with a 1st lens group L1, having negative refractive power, a 2nd lens group L2 having positive refractive power, a 3rd lens group L3 having negative refractive power, a 4th lens group L4 having positive refractive power and a 5th lens group L5 having positive refractive power in turn from a large conjugate side. Then, when a variable power action is executed to a telephoto end from a wide angle end, the groups L2 and L4 are moved to the large conjugate side. Also it is provided with at least one aspherical-surface lens.  Then, when the distance to a small conjugate surface from the pupil of a short conjugate side at the wide angle end when the conjugate length of a long conjugate side is infinity is defined as (tkw), and the focal distance of a whole system at the wide angle end is defined as (fw), the conditional expression of |tkw/fw|>4 is satisfied.
Patent JP-S59128554-A (JP)
Title: Transfer sheet used for liquid developing
Inventor: AOTA KOUICHI
IPC: G03G7/00
Filed: 1983-01-13
Abstract: PURPOSE:To obtain a transfer sheet used for preventing a copied sheet from being recopied, by incorporating a metal or metallic compd. detectable with an approach detector in a transfer sheet and detecting it and responding to it in accordance with a scanning exposure process. CONSTITUTION:A thin metallic film 3 is interposed with paper or plastic sheet layers 2, 4 to form a 3-layer structured sheet, or a gas permeability controlling layer 5 is formed as a transfer face on a layer 6 contg. a metal or metal oxide or the like formed on the layer 2. As the metal or the metal of the metallic compd. detectable with an approach detector, Al, Fe, Cu, Zn, Cd, Ag, Ni, etc., and compds. of them are preferable, and Fe or Al, is best. The metal contg. layer 6 may be a thin film or a layer formed by dispersing the powder into an adhesive, and >=0.5mum film thickness is necessary. A gas permeability suitable for a surface paper sheet is >=150sec, preferably >=200sec measured by the JISP- 8117 method.
Patent JP-H04236182-A (JP)
Title: Inverter device
Inventor: KUNIEDA MASAMI
IPC: H02P27/06
Filed: 1991-01-16
Abstract: PURPOSE:To improve decelerating characteristic without supplying an overcurrent at the time of stop of deceleration even if a starting torque is largely set by detecting the voltage of a capacitor and correcting the output voltage of an inverter. CONSTITUTION:A voltage detector 10 detects the rise of the voltage VC of a capacitor 4 due to recovery energy at the time of deceleration, and reduces the width of a voltage pattern of a PWM signal to an inverter circuit, thereby correcting the rising component of the VC. Even if a starting voltage is highly set so as to accelerate an acceleration at the time of starting, the width of the PWM signal to a switching element of the circuit is altered in the amount corresponding to the rising component of the VC at the time of stop of the deceleration to the same as V/f at the initial setting, thereby smoothly accelerating or decelerating without supplying an overcurrent even in a low frequency at the time of deceleration.
Patent JP-2000207591-A (JP)
Title: Taximeter
Inventor: DOI KUNIO
IPC: G07B13/02
Filed: 1999-01-08
Abstract: PROBLEM TO BE SOLVED: To obtain a taximeter by which display contents in the name display place of tariff buttons are easily changed. SOLUTION: The plural tariff buttons 20B are arranged in a line on the front surface of the taximeter 1, the name display place 21 is formed along the series of tariff buttons B and a display board 22 with one end facing the side of the taximeter, to be fitted to the name display place 21 so as to be attachable/detachable, where the names are mentioned in accordance with the tariff buttons 20B, is arranged. A closing plate 26 is provided, whose upper part is arranged along the side face of the taximeter 1 and covers the one end part of the display board 22 and whose lower part is arranged along the front lower part of the taximeter 1 and sealed to the taximeter with a sealing tool 11, and the display board 22 is sealed to the name display place 21 through the closing plate. 26.
Patent JP-S63174274-A (JP)
Title: Hydrogen battery
Inventor: MITSUYASU KIYOSHI
IPC: H01M4/32
Filed: 1987-01-12
Abstract: PURPOSE:To suppress the increase in internal pressure of a battery accompanied by the progress of charge and discharge cycle by carrying a catalyst, which promotes oxidation reaction of hydrogen, on a part of positive electrode. CONSTITUTION:A catalyst, for example Pt, which promotes oxidation reaction of hydrogen, is carried on a part of positive electrode 3 by evaporation and the like. Namely, Pt catalyst is evaporated on a rear surface 8, which is the most core side of winding Ni electrode as a positive electrode 3. The positive electrode 3, which adheres to a negative electrode 2 interposing a separator 4 of polypropylene unwoven fabric between them, is wound and inserted into an acryl-made cylindrical sealed vessel 5. Then 8N-KOH aqueous electrolytic solution is poured into it, and a cover 7 equipped with an application sensor 6 is fixed to assemble a model cell of hydrogen battery with U3 size. By the arrangement, hydrogen generated from a hydrogen electrode as the negative electrode during charging reacts rapidly with hydroxyl group producing water, resulting in suppression of an increase in internal pressure of the battery.