baber/WOPTO huggingface dataset:
Patent JP-H02172941-A (JP)
Title: Production of p-hydroxybenzaldehyde
Inventor: TAKESHITA AKIRA
IPC: C07C47/565
Filed: 1988-12-23
Abstract: PURPOSE:To crystallize and separate the subject compound in the form of sodium salt by oxidizing p-cresols in methanol, adding water to the resultant reaction mixture, as necessary, filtering the mixture, then distilling away the methanol, subsequently neutralizing the obtained mixture and cooling the neutralized mixture. CONSTITUTION:p-Cresols are oxidized with oxygen or an oxygen-containing gas in the presence of a catalyst containing sodium hydroxide and a cobalt compound in methanol and water is then added to the resultant reaction mixture. The obtained mixture, as necessary, is filtered to separate tar components, catalyst, etc. The produced solution is then heated to 50-100 deg.C temperature to distill away the methanol. The resultant solution is subsequently neutralized to pH9-11 and, as necessary, extracted with a solvent (the unreacted m-cresol, etc., are separated when mixed m-/p-cresol is used as a raw material) and the solution temperature is then cooled to -20 to +50 deg.C, preferably 0-20 deg.C to crystallize and separate the objective compound in the form of Na salt. The separated crystals are subsequently dissolved in water, as necessary, filtered and neutralized with a mineral acid to crystallize and separate the objective compound.
Patent JP-H10172113-A (JP)
Title: Thin-film magnetic head
Inventor: NAKADA MASAHIRO
IPC: G11B5/31
Filed: 1996-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a thin-film magnetic head capable of effectively suppressing an NLTS(nonlinear transition shift). SOLUTION: This magnetic head is constituted by interposing a gap spacer layer 6 between a lower core layer 5 and an upper core layer 8 and interposing a lower insulating layer 22 and upper insulating layer 23 embedded with coil layers 7 in the position retreating by the prescribed gap length from the medium- facing surface to be disposed opposite to a recording medium. The upper core layer 8 has a flat part 84 extending to a depth end from the medium-facing surface along the gap spacer layer 6 and a sloping part 85 riding atop the upper insulating layer 23 apart from the gap spacer layer 6. The upper core layer 8 is formed to the film thickness t2 in the direction orthogonal with the magnetic path in the sloping part 85 smaller than the film thickness t1 in the direction orthogonal with the magnetic path in the flat part 84.  More preferably, the ratio of the film thickness t2 of the sloping part 85 to the film thickness t1 of the flat part 84 is so set as to minimize the shift of the recording bit accompanying the magnetic saturation at the time of signal recording.
Patent JP-H08174269-A (JP)
Title: Filler metal for ni base high cr alloy
Inventor: TADA YOSHIHIRO
IPC: B23K35/30
Filed: 1994-12-28
Abstract: PURPOSE: To obtain a welded metal superior in high temp. tensile strength and weld crack resistance. CONSTITUTION: This filler metal contains, by wt., <=0.04% C, 0.1-0.5% Si, 0.2-1% Mn, 28-31.5% Cr, <=0.5% Mn, <=0.3% Cu, <=0.1% Nb, 0.5-1.1% Al, 0.5-1% Ti, <=1.5% Al+Ti, 7-11% Fe. And 0.05-0.5% total of <=2 kinds of W and V. In addition, it contains <=0.1% Co, <=0.02% P, <=0.015% P <=0.1% O, 0.03-0.3% N, and the balance Ni as inevitable impurities.
Patent JP-H04195065-A (JP)
Title: Photosensitive body
Inventor: ASANO MASANARI
IPC: G03G5/14
Filed: 1990-11-28
Abstract: PURPOSE:To obtain the photosensitive body restrained from image defects, such as black spots, and sufficient in sensitivity to comparatively long wavelength light, such as semiconductor laser beams, by forming an undercoat layer made of a polythiol type radiation-curing resin on a conductive substrate. CONSTITUTION:The photosensitive body is formed by laminating at least the undercoat layer (UCL) 7 and a photosensitive layer (PCL) 8 on the conductive substrate 1, and the undercoat layer 7 is made of the polythiol type radiation- curing resin obtained by mixing with an oligomer having an acryl or acryloyl group on the terminal of the molecule and adding a photopolymerization initiator, thus permitting a barrier against local injection of carriers from the side of substrate 1 to be formed, and the loss or decrease of surface charge due to the local carrier injection to be prevented.
Patent JP-H11264268-A (JP)
Title: Safety system operating method
Inventor: PLASCHKO HEINRICH
IPC: B60R25/25
Filed: 1998-10-14
Abstract: PROBLEM TO BE SOLVED: To provide a safety system operating method allowing only an authorized user to access a protected object and to handle easily. SOLUTION: A transmitting unit 1 detects the physical feature and fingerprint of a user by a detector 10 and transmits an identification signal of the user to a safety device 2. The safety device 2 collates the transmitted identification signal with a stored identification signal of the user with a right to release the safety device, and the safety device can be released only in the case of coincidence. Access of an unauthorized user can therefore be prevented even in the case of unjustly obtaining a transmitter.
Patent JP-H01168723-A (JP)
Title: Photosensitive resin composition
Inventor: TSUKADA KATSUSHIGE
IPC: C08G59/32
Filed: 1987-12-24
Abstract: PURPOSE:To obtain a photosensitive resin compsn. which can be developed with a safe and economical aq. alkali soln., can form a highly reliable solder mask, and contains a specified polymer binder, and unsatd. epoxy compd., a photopolymerizable unsatd. compd., an amino resin and a sensitizer. CONSTITUTION:A photosensitive resin compsn. comprises a polymer binder (A) soluble in an aq. alkali soln., and insoluble in water, an unsatd. epoxy compd. (B) obtd. by addition-reacting triglycidyl isocyanate with an unsatd. monocarboxylic acid in the range of acid equivalent to epoxy equivalent of 0.3-0.9, a photopolymerizable unsatd. compd. (C) having two or more terminal ethylene groups, an amino resin (D) and a sensitizer capable of forming free radicals by irradiation with an actinic radiation and/or a sensitizer system (E). By using this compsn., it is possible to form a solder mask which can be developed with an aq. alkali soln., having excellent safety and economy, has excellent resolution and hygroscopicity and is highly reliable.
Patent JP-2000156981-A (JP)
Title: Method and circuit for detection of phase difference between current and voltage of inverter
Inventor: YOSHIOKA TORU
IPC: H02M7/493
Filed: 1998-11-18
Abstract: PROBLEM TO BE SOLVED: To precisely detect the phase difference between the current and the voltage of an inverter by a method, wherein the time occupied by a positive polarity is compared with the time occupied by a negative polarity, and the phase difference between the current and the voltage is detected. SOLUTION: A PWM circuit 35 creates a PWM signal on the basis of an error waveform signal, and an inverter 22 is controlled by the PWM signal. That is to say, the error waveform signal as the difference between output target sinusoidal wave and an output voltage is controlled to a direction in which it becomes small. An inverter output current is detected by a current detection circuit 26, and the phase difference between the detected current and an output voltage detected by a voltage circuit 25 is detected by a phase-difference detection circuit 30. A phase-difference signal which is output from the phase-difference detection circuit 30 is input to an output target sine-wave creation circuit 33, and the phase of the output target sine waves is controlled in the direction in which the phase difference becomes zero.  In addition, a control operation itself uses the phase difference between the detected output current and the output voltage when output voltages of inverters which are operated in parallel are not synchronized.
Patent JP-H01169197-A (JP)
Title: Manufacture for hose with protector
Inventor: FUKAMACHI SATOSHI
IPC: F16L57/00
Filed: 1987-12-23
Abstract: PURPOSE:To promote the improvement of sealing quality by coating the peripheral surface of a long size hose in a non-vulcanized condition with a protector in a non-vulcanized condition, while it is extended, thereafter inserting a mandrel to be fitted to the hose and vulcanizing it. CONSTITUTION:A protector 5 in a non-vulcanized condition, while it is extended, coats the peripheral surface of a long size hose 1 in a non-vulcanized condition. And then cutting the hose into a predetermined length, the hose is inserted and fitted to a mandrel 8, having a predetermined curved shape, then vulcanized. In this way, the protector 5 is brought into close contact with the hose 1 sufficiently over its full peripheral surface, while the protector 5 contracts in both end parts of the hose when it is cut into the predetermined length. Further by vulcanizing the hose inserted and fitted to the mandrel 8, the protector 5 further contracts, and the hose 1 places both end parts in a condition without the protector.
Patent JP-H02173206-A (JP)
Title: Production of far infrared ray radiator
Inventor: ISHII KAZUHIDE
IPC: C21D6/00
Filed: 1988-12-27
Abstract: PURPOSE:To improve for infrared ray radiation characteristic and corrosion resistance by executing heat treatment under inert gas atmosphere after oxidizing the ferritic stainless steel of specific composition at high temp. under the specific condition. CONSTITUTION:The ferritic stainless steel containing 16-35wt.% Cr, <=5.0% Mo, <=3.0% Mn, <=3.0% Si is held at 800-1200 deg.C for >=5min under the oxidizing atmosphere to form the oxide film containing Cr2O3 as the essential component. Successively, this is held at 600-1200 deg.C for >=1hr under inert gas atmosphere to diffuse Cr onto the steel surface from inner part of the steel, and the Cr concn. on the steel surface just below the oxide film is made to >= about 15%. The far infrared ray radiator produced with this method has the excellent corrosion resistance and is suitable to a heater, drying and heating apparatus utilizing the far infrared ray.
Patent JP-H11160629-A (JP)
Title: Method for inserting endoscope to be inserted into pipe and endoscope device
Inventor: SHIMOE YASUFUMI
IPC: G02B23/24
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To easily insert it into a pipe erected in the vertical direction and to observe and inspect it by providing a coil sheath consisting of a closely wound coil on its outside and inserting it into its insertion part of an endoscope. SOLUTION: The coil sheath 5 is attached on the endoscope insertion part 12. The coil sheath 5 consists of a coil part 21 formed by preloading a stainless steel for a spring and winding it tightly, a coil receiving part 22 connecting the base end part of the coil part 21 and a stop part 23 formed on the base end of the coil receiving part 22 and attachably/detachably loading the operation part 13 of the endoscope 1. The insertion part 12 of the endoscope 1 is passed through the coil sheath 5, and the stop part 23 of the coil sheath 5 is fitted to the fixed part 19 of the endoscope 1 to be attached. The whole length of the coil sheath 5 is set in the length that the bend 10 of the endoscope 1 is projected from the tip of the coil part 21 when it is loaded on the endoscope 1, and thus, the matter obstructing the bending or winding operation of the bend 10 of the endoscope 1 is eliminated.
Patent JP-2000148628-A (JP)
Title: Three-dimensional display distributed network management system
Inventor: WATANABE NAOKI
IPC: G06F3/048
Filed: 1998-11-18
Abstract: PROBLEM TO BE SOLVED: To apply a 3D-GUI using a VRML to a CORBA(common object request broker architecture) base NMS(distributed network management system). SOLUTION: This system is constituted of an NMS basic part 10 provided with a module 11 of a managing function or a CORBA service and a GUI part 20, provided with a GUI scene 21 and a GUI Applet 22. An interface between the NMS basic part 10 and the GUI part 20 is described by an IDL. The GUI scene 21 is provided with a network constitution display means 211 described by a VRML and a GUI Applet interface means 222. The GUI Applet 22 is provided with a GUI part display means 221, GUI scene interface means 222, CORBA object access means 223 for making access to the module 11, CORBA message-receiving means 224 for receiving messages form the module 11, and GUI preparing means 225.
Patent JP-H06169913-A (JP)
Title: Radiation diagnostic system
Inventor: HANAKAWA KAZUYUKI
IPC: A61B6/03
Filed: 1992-12-08
Abstract: PURPOSE:To provide a radiation diagnostic system which enables the determin ing of a correct absorption distribution even when a power source voltage to be supplied to a dose source of a radiation generator is generated. CONSTITUTION:Voltages V1-V4 are generated with a power source adjuster of a power box with no object to be photographed yet set to obtain an output xrm of a reference detector and an output xim of a multi-channel X-ray detector corresponding to the voltages (S1, S2). Then, a reference profile is determined based on a profile function obtained in a polynomial development developed based on an output of the reference detector when the mth microwave is outputted (S3). Then, a multi-channel detector output data of the X-ray detector is obtained with an examinee placed on a diagnosing bed (S4). Then, a projection data is obtained from the reference profile and a measuring data profile and subjected to convolution with a filter function to obtain a deformation projection data. Then, a reverse projection of the data is performed to determine an absorption coefficient distribution (S5-S8).
Patent JP-H04197038-A (JP)
Title: Power distribution line control system
Inventor: FUKUDA YASUMASA
IPC: H02J13/00
Filed: 1990-11-28
Abstract: PURPOSE:To allow the operator to grasp recovering state of a power distribution line by displaying a power transmission state in a descriptive expression on a screen, and displaying inclusion of an accident line in the expression on the screen if an accident line included in an object to be recovered for an accident is decided by accident line deciding means. CONSTITUTION:An accident line discriminator 154 detects, when receiving information read from a memory 121 by an information reader 152, accident line information included therein. If accident line information is detected, information indicating inclusion of the accident line in an object to be recovered is output to a display unit 155 together with corresponding accident identification information received from the reader 152. If the accident line cannot be detected, information indicating no inclusion of an accident line is output.
Patent JP-H11158512-A (JP)
Title: Production of porous body
Inventor: SUZUKI HISAO
IPC: B22F5/00
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To easily produce a porous body composed of a porous body part and a porous metallic sheet part by sticking and impregnating metal powder- contg. slurry into a porous material to be burned at <= the sintering temp. of this metal powder, sticking porous metallic sheets to the porous material and executing sintering. SOLUTION: Water and powdery ammonium alginate are stirred and mixed in a vessel 1, the obtd. aq. soln. is mixed with SUS powder, and stirring and mixing are executed to form slurry S. This slurry S is transferred to an another vessel 3, which is charged with a porous material 10 of polyurethane foam to make the slurry S adsorbed. The porous material 10 impregnated with the slurry S is subjected to squeezing treatment by squeezing rollers 4a and 4b to remove the excessive slurry S to form a porous material 10a, and on one face, porous metallic sheets 20 are laminated with the slurry S as adhesives.  This laminated body 30 is dried by the sun or the like, is thereafter poured into a vacuum type sintering furnace 5, is heated at about 1350 deg.C for about 1 hr in a vacuum and is subjected to sintering treatment to obtain a porous body 40 composed of a porous body part 10b and a porous metallic sheet part 20.
Patent JP-2000121067-A (JP)
Title: Kotatsu cover set allowing user to take nap without anxiety
Inventor: MURATA MICHIKO
IPC: F24C15/00
Filed: 1998-10-13
Abstract: PROBLEM TO BE SOLVED: To obtain a Kotatsu cover set which can secure a heat retaining property and from which Futon covers can be separated by using a piece of highly heat retaining cloth as a Kotatsu Futon and making a Kotatsu cover composed of a top face section and side face sections which can be attached to and detached from the top face section usable in a twofold state when a user warm himself at a Kotatsu in a sitting state and in a onefold state when the user lies on his side. SOLUTION: A piece of cloth 1 which is as thin as the fleece cloth and has a high heat retaining property is put on a Kotatsu 12 available on the market as the conventional Kotatsu Futon and the top face section 3 of a Kotatsu cover made of a piece of thick washable reversible cloth, such as the quilting cloth, etc., is put on the cloth 1. The Kotatsu cover is usually used in a state where a male Velcros 9 sewn on the top section 3, female Velcros 10 and male Velcro 11 of respective side 5, 6, 7 and 8 are set to foldable states. The connecting sections between the top section 3 and side-face sections 5-8 are concealed with the hanging- down sections 4 of the top face section 3.  When the user lies on his side, the Kotatsu cover is set to a onefold state by respectively removing the female Velcros 10 attached to the upper surfaces of the sections 5-8 and the male Velcros 11 attached to the bottoms of and used by covering up to the shoulder like a coverlet.
Patent JP-H10174492-A (JP)
Title: Magnetic pole position detector
Inventor: MAEDA YUTAKA
IPC: G01B7/00
Filed: 1996-12-09
Abstract: PROBLEM TO BE SOLVED: To detect the rotational position with high accuracy by equipping a detector with a low-pass filter which removes higher harmonic wave components by supplying the exciting coil wound on the magnetic poles in pair at the periphery of a stator with pulses in rectangular waveform, and adding the detecting value of the magnetic poles in a pair, where the phase of electric angle is slid by a specified angle to the detection value of the exciting current of the coil by the voltage, so as to rectify it. SOLUTION: Arranging properly each pole tooth 1a and 2a of a magnetic pole m1 and a rotor 2 in the same-phase position will shift the several magnetic pole teeth 1a and 2a of a magnetic pole 3 and a rotor 2, a magnetic pole m5 and a rotor 2, and a magnetic pole 7 and a rotor 2 by 90 deg., 180 deg., and 270 deg., respectively, in electric angle phase. A signal generator outputs pulse signals to the several exciting coils of magnetic poles m1-m32, and two-phase sine waves that a low-pass filter has produced, removing the components of higher harmonic waves from the output signal of a synchronous rectifying circuit are used as the magnetic pole signals of a two-phase pulse motor.  Consequently, even if the gap between several magnetic pole teeth of the stator and the rotor of a magnetic position measuring instrument changes, the rotational position of the pulse motor can be detected with high accuracy.
Patent JP-H08157208-A (JP)
Title: Calcium silicate hydrate and its production
Inventor: TAKEUCHI HIDESHI
IPC: C01B33/24
Filed: 1994-12-02
Abstract: PURPOSE: To obtain calcium silicate hydrate which is lightweight and excellent in mechanical strength. CONSTITUTION: Water is added to a mixture of the calcareous material and siliceous material to obtain the aq. slurry, an alkali hydroxide is added to the slurry, and the slurry is heated and gels in the first stage. High-pressure heated water is introduced into the slurry gel obtained in the first stage to promote a hydrothermal reaction, and hydrous calcium silicate is produced in the second stage. The product slurry is depressurized and discharged in the third stage, and calcium silicate is produced. Since the high-pressure heated water contg. an alkali hydroxide is used in the second stage, the calcium silicate hydrate, wherein bur-shaped and wheat ear-shaped calcium silicate crystals are mixed, is produced.  Accordingly, a calcium silicate hydrate, which is lightweight, excellent in shape stability and remarkably enhanced in mechanical strength and has the properties according with applications, is produced.
Patent JP-H07155390-A (JP)
Title: Disaster protection method in welding operation
Inventor: KAWACHI TAKESHI
IPC: A62C3/06
Filed: 1993-12-02
Abstract: PURPOSE:To provide a disaster protection method in welding operation capable of surely averting combustion or explosion of gaseous methane in the case of carrying out of the welding operation in a reclaimed land, etc., of decomposable refuse. CONSTITUTION:This disaster protection method in the welding operation to be carried out on a space where inflammable gases are generated comprises forming air bubbles by using a prescribed foaming agent (step 11), then spraying these air bubbles to the prescribed region on the space (step 12) and carrying out the welding operation on the region (step 13).
Patent JP-H07149980-A (JP)
Title: Vinyl chloride-polyurethane composite and vinyl chloride resin powder composition used therefor
Inventor: NISHIGUCHI TOSHINOBU
IPC: B32B27/30
Filed: 1993-11-30
Abstract: PURPOSE:To obtain a resin powder composition which can prevent efficiently the deterioration of the surface of a vinyl chloride resin and the failure of its appearance by blending a specific perchlorate-ion-substituted hydrotalcite compound with the vinyl chloride resin. CONSTITUTION:The resin powder composition is prepared by dry-blending 100 pts.wt. of a vinyl chloride resin, 0.05-20 pts.wt. of at least one of a perchlorate-ion-substituted hydrotalcite compound with a specific surface area of 0.5-50m<2>/g represented by formula I (wherein, 3.5<x<8, 0.01<y<=1, 0<=m<10), a perchlorate-ion-substituted hydrotalcite compound with a specific surface area of 0.5-50m<2>/g represented by formula II (wherein, 3.5<x<8, 0<y<1, 0.01<z<=1, 0<=m<10; and in formula III, 0.05<x<5, 0<y<x, another perchlorate-ion-substituted hydrotalcite compound with a specific surface area of 0.5-50m<2>/g represented by formula II, a perchlorate-ion-substituted basic lithium aluminum carbonate with a specific surface area of 0.5-50m<2>/g represented by formula III, 0.01-10 pts.wt. of a beta-diketone compound, a plasticizer and a pigment.
Patent JP-H02173766-A (JP)
Title: Image forming device
Inventor: KOBAYASHI TETSUYA
IPC: G03G15/05
Filed: 1988-12-27
Abstract: PURPOSE:To completely erase electric charges and to improve image quality by providing a developer adhering area so that a specified amount of developer may be supplied to the rubbing part of an erasing means and a recording medium. CONSTITUTION:The toner adhering area is provided in an image nondisplay area 12B so that the specified amount of toner may be supplied to the rubbing part of a cleaning member 13 and the recording medium 1. In such a case, the developer adhering to the developer adhering area is supplied to the rubbing part of the erasing member accompanied with the movement of the recording medium 1 and the rubbing part of the erasing member is always kept in a state where it is filled with the developer. Since the contact area of the rubbing part becomes large even if the erasing member consecutively rubs the white image part of the recording medium 1, electrical resistance is made low and the charge generated on the surface of the recording medium in the case of forming an image, the charge given to the developer and other charge generated by the rubbing of the recording medium 1 with the erasing member in the case of erasing the image move through a conductive erasing means 13b to reduce electrostatic charging quantity on the recording medium 1. Thus, the magnetic developer is prevented from adhering to the nonimage part and the high definition image is formed.