baber/WOPTO huggingface dataset:
Patent JP-H01258662-A (JP)
Title: Production of high-purity benzylpyridine
Inventor: ITSUDA HIROSHI
IPC: C07D213/127
Filed: 1988-07-29
Abstract: PURPOSE:To obtain the title substance, by reacting a halomethylpyridine or a hydrohalide thereof with benzene in the presence of Lewis acid to give a benzylpyridine hydrohalide and extracting the benzylpyridine hydrohalide with a halogenated hydrocarbon. CONSTITUTION:Halomethylpyridine hydrohalide shown by formula I (X is Cl or Br) or a halomethylpyridine is reacted with benzene in the presence of Lewis acid (e.g. AlCl3) to give a compound shown by formula II, which is extracted with a halogenated hydrohalide with a halogenated hydrocarbon to give a high- purity compound shown by formula III. The halomethylpyridine or a hydrohalide thereof is produced by subjecting a methylpyridine to side-chain chlorination in the presence of a hydrohalide acceptor and an inert solvent (e.g., CCl4) and adjusting to pH0.5-2.0. Chloroform or methylene chloride containing 3-10% lower alcohol is used as the halogenated hydrocarbon. The title substance is useful as an intermediate of a drug of diabetes.
Patent JP-H0835121-A (JP)
Title: Splittable conjugate fiber and textile structure therefrom
Inventor: KONDO YOSHIKAZU
IPC: D06M101/16
Filed: 1994-07-21
Abstract: PURPOSE:To obtain a splittable conjugate fiber easily splittable in neutral or weakly alkaline circumstances, capable of preventing environmental pollution owing to its high biodegradability, contributing to only low resource wasting, also advantageous in terms of cost, and to obtain a textile structure therefrom. CONSTITUTION:This splittable conjugate fiber is a kind of conjugate fiber made up of (A) a readily biodegradable polyester 1 consisting mainly of polylactic acid and (B) a fiber-forming polyester 2 containing >=40wt.% of a component derived from an aromatic compound. In this case, the polyester B is divided into plural segments by the polyester A in a single fiber crosssectional view, and the polyester A occupies at least part of the fiber surface. The other objective textile structure is obtained from these splittable conjugate fibers.
Patent JP-S57164440-A (JP)
Title: Recording and reproducing device
Inventor: WATANABE ATSUSHI
IPC: G11B27/024
Filed: 1981-11-30
Abstract: PURPOSE:To get rid of a dubbing error, by providing 2 recording and reproducing mechanisms, providing a changeover switch for selecting their constant speed and high speed, and constituting so that an external input signal can be mixed into a reproducing signal only when the switch has selected a constant speed state. CONSTITUTION:In case of normal reproducing, an output of a line amplifier 285 is led into a loudspeaker 291 through both a reproducing changeover switch 303 and a power amplifier 290. Also, in case of 1 signal speed and 4 signal speed dubbing reproducing, the output of this line amplifier 285 is provided to an automatic volume controlling limiter 279 and recording equalizers 286, 287, respectively, through a dubbing changeover switch 297, and an output of the recording equalizer 286 is switched to a recording and reproducing head 281, and  an output of the recording equalizer 287 is switched to the other, that is to say,  to a recording head 310 for the left channel of a recording and reproducing circuit of a recording and reproducing mechanism on the right. In this regard, a recording and reproducing changeover switch 311 is provided in accordance with  a recording and reproducing changeover switch 304 of one recording and reproducing circuit in said other recording and reproducing circuit.
Patent JP-H0945550-A (JP)
Title: High-frequency transformer
Inventor: OTSUKI EIJI
IPC: H01F27/32
Filed: 1995-07-27
Abstract: PROBLEM TO BE SOLVED: To provide a high-frequency transformer which is easy to assemble, lower in production cost and easy to miniaturize and flatten, and generates no noise. SOLUTION: In a high-frequency transformer 1 including a bobbin with brim 2, a coil 3 and a pair of ferrite cores 4, an insulating cover 5 is provided between the outer surface of the bobbin with brim 2 and the inner side of the pair of ferrite cores 4. The insulating cover 5 covers the entire outer side and upper side of the bobbin with brim 2. The insulating cover 5 is engaged with a part of the bottom of the bobbin with brim 2 so as to be fixed to the bobbin with brim 2.
Patent JP-H1038641-A (JP)
Title: Fluid vibration detecting sensor
Inventor: NUKUI KAZUMITSU
IPC: G01F1/20
Filed: 1996-07-22
Abstract: PROBLEM TO BE SOLVED: To provide a fluid vibration detecting sensor which can be formed easily and can detect the vibration of a fluid without receiving any influence from external vibrations even when the pressure of the vibration is extremely low and the frequency of the vibration is low. SOLUTION: A diaphragm 31 which detects fluid vibrations generated in a fluidic element is provided in nearly parallel with a plane 63 containing an inlet-side gas pipeline 61 and outlet-side gas pipeline 62 which are laid in nearly parallel with each other. Therefore, the diaphragm 31 does not malfunction even when the sensitivity of the diaphragm 31 is improved, because the direction in which the diaphragm 31 is displaced becomes parallel to the plane 63 containing the pipelines 61 and 62, namely, the laying direction of the pipelines 61 and 62 which hardly vibrate even when external vibrations occurs due to an earthquake, etc.
Patent JP-H0244690-A (JP)
Title: Preparation of multicolor thin film el device
Inventor: YAMAMOTO MUTSUMI
IPC: H05B33/12
Filed: 1988-08-01
Abstract: PURPOSE:To make it easy to manufacture EL decides by using an etching gas mainly containing halogen gases such as chlorine, bromine, iodine, etc., or halides for dry etching of a fluorescent layer of mainly a sulfide. CONSTITUTION:A first fluorescent film 13 of ZnS:Tb, F and a second fluorescent film 15 of CaS:Eu are successively formed on a glass substrate 10 bearing a transparent electrode 11 and a first insulating layer 12 patterned into desired patterns and when these fluorescent films are etched, a gas mainly containing halogen gases such as chlorine, bromine, iodine, etc., or halides such as chloride, bromide, iodide, etc., is used as an etching gas. By using the etching gas, dry etching of fluorescent films mainly consisting of ZnS, CaS, or SrS is carried out at high speed and reproducibly. As a result, a plurality of fluorescent films having original luminous efficiency can be formed between a pair of electrode films.
Patent JP-H0243801-A (JP)
Title: Structure of interdigital filter
Inventor: KUMAHARA KAZUO
IPC: H01P1/213
Filed: 1988-08-03
Abstract: PURPOSE:To obtain high reliability and excellent mounting work performance by fitting each coupling rod to a guide groove formed on the upper face of a dielectric block at a prescribed interval to a corresponding resonance rod, adjusting the position and fixing the rod. CONSTITUTION:After the position of the coupling rods 21, 22 is adjusted with a prescribed interval to the corresponding rod 17 fitted to guide slots 23a, 24a of dielectric blocks 23, 24 respectively and fixed in the guide slots 23, 24 with an adhesives. Thus, while the coupling rods 21, 22 are floated electrically with respect to a case 11 via the dielectric blocks 23, 24, the rods are connected electrically stably to the electrode 15b of a circulator 15 or a signal input terminal pin 14 and while the coupling rods 21, 22 are positioned accurately with respect to the resonance rod 17, the rods are fixed stably in the case 11. Thus, the 4-7GHz band microwave interdigital filter with high reliability and excellent mounting work performance is obtained.
Patent JP-H0727863-A (JP)
Title: Radiation detecting element and its manufacture
Inventor: TAKABAYASHI TOSHIO
IPC: G01T1/20
Filed: 1993-07-07
Abstract: PURPOSE:To provide a radiation detecting element which has very high X-ray sensitivity and resolution and a large area and its simple manufacturing method. CONSTITUTION:A radiation detecting element is constituted of a one- or two-dimensional optical sensor 3 having multiple picture elements 30 and recessed or projecting patterns 8 formed at the pitch corresponding to the picture elements 30 formed on a substrate and a scintillator 40 which is grown on the sensor 3 and split into sections respectively counterposed to the picture elements 30 by cracks selectively produced along a recessed or projecting pattern 8. Especially, the recessed or projecting pattern 8 has a prescribed cross-sectional shape to selectively produce the cracks during the growing process of the scintillator 40. Because of the cracks produced in the scintillator 40, scintillation light generated when radiation is made incident is detected by means of the picture elements 30 only.
Patent JP-H1017144-A (JP)
Title: Mobile type silo and plant system
Inventor: KUMAKURA YASUO
IPC: E04H5/08
Filed: 1996-07-02
Abstract: PROBLEM TO BE SOLVED: To provide a mobile type silo and a plant system to flexibly comply with the change of kinds of powder even when various kinds of ready-mixed concrete are manufactured and to be realized at a low cost through comparatively simple constitution. SOLUTION: A-plant system is provided with a tank 3 to store a given amount of powder, a root blower 8 to effect pneumatic transportation of powder flowing out from the under side of the tank 3, and a rotary feeder 9. A mobile type silo 2 the whole of which is movable is coupled to a plant 20, comprising a hopper 21 to receive powder; a metering apparatus 23 to meter powder; and a mixer 25 to mix together powder, aggregate, and water, through a transport pipe 11. The powder pneumatically transported by the root blower 8 and the rotary feeder 9 is conveyed in the hopper 21 through the transport pipe 11 and after metering by the metering apparatus 23, the powder flows in the mixer 25.
Patent JP-S6251798-A (JP)
Title: Wear resisting plate against dust
Inventor: KAWATANI AKIO
IPC: F04D29/02
Filed: 1985-08-30
Abstract: PURPOSE:To improve the wear resistance by heating mixture of particles of special high-hardness substance and heat-resisting resin under pressure and seizing the mixture on the surface of a metal plate in a plate form. CONSTITUTION:A plate which is used as the internal liner of a pump casing is a metal plate on the surface of which mixture consisting of particulate special high-hardness substance and heat-resisting resin is heated and seized. The high- hardness substance consists of 15-95% silicon carbide, with 50-60 mesh, 0-80% alumina with 150-250 mesh and the heat-resisting resin 5-20% including 100% nonvolatile component is added to said substance. The mixture is then heated under pressure between 3-10kg/cm<2> at a temperature between 150-500 deg.C and seized on the surface of the metal plate. A wear-resisting plate can, thereby, withstand temperature as high as 200 deg.C.
Patent JP-2000031252-A (JP)
Title: Semiconductor manufacture device with electrostatic chuck and wafer removal method there from
Inventor: IKEDA TAKETOSHI
IPC: H01L21/68
Filed: 1998-07-08
Abstract: PROBLEM TO BE SOLVED: To prevent offset of a wafer, wafer breakage, etc., and reduce reduction of producibility, by detecting the thickness of an oxide film of a wafer rear before wafer treatment, and removing a wafer by applying a series of voltage sequence to an electrostatic chuck after treatment. SOLUTION: The thickness of a wafer rear oxide film 6 attaching to a rear of a wafer 1 is measured by an optical sensor 10, while the wafer 1 is attracted to an electrostatic chuck 2 and plasma which is specified treatment is generated. High frequency power is supplied to the electrostatic chuck 2 attracting the wafer 1, plasma is generated between the electrostatic chuck 2 and an grounding electrode 32, and a wafer is attracted to the electrostatic chuck 2. After a specified time passed and treatment is finished, high frequency voltage applied to the electrostatic chuck 2 is released and plasma is extinguished. Thereafter, voltage for removal according to the thickness of the wafer rear oxide film 6 attaching to a wafer rear is applied to the electrostatic chuck 2.
Patent JP-H0480596-A (JP)
Title: Heat exchanger
Inventor: OTA KAZUHIDE
IPC: F28D7/16
Filed: 1990-07-23
Abstract: NEW MATERIAL:To reduce the amplitude of resonance by a method wherein sound absorbing materials are provided in the acoustic field of a heat exchanger with intervals inwardly from wall surfaces of the heat exchanger in the flow direction of gas and axial direction of heat exchanging tubes. CONSTITUTION:Gas, passed through the groups of a plurality of heat exchanging tubes 1, changes the flow direction thereof and is discharged out of a heat exchange substantially horizontally as shown by arrows in a diagram. Sound absorbing material 3a, 3b are provided in the flow direction of gas in parallel to the axial direction of the heat exchanging tubes 1 with intervals W inwardly from the side walls 5 of the heat exchanger in an objective acoustic field in the heat exchanger, which is determined by the width L of the heat exchanger, while the intervals W is corresponding to 1/4 of the wave length of the resonance sound of the acoustic field. The sound absorbing materials 3a, 3b are provided at positions apart from the side walls 5 by 1/4 of the resonance sound wave length of the acoustic field in the heat exchanger, whereat the fluctuation (mu) of particle speed upon generating resonance becomes maximum, whereby the maximum sound absorbing materials 3a, 3b even when resonance between the discharging eddies 2 from the heat exchanging tubes 1 and the acoustic field of the heat exchanger is generated.
Patent JP-H1033125-A (JP)
Title: Modification of xanthan gum and modified xanthan gum
Inventor: KOJIMA MASAAKI
IPC: A23L29/20
Filed: 1996-07-23
Abstract: PROBLEM TO BE SOLVED: To lower spinnability of an aqueous solution and modify the xanthan gum so as to have a specific viscosity, improve reactivity and enable application to wide uses as a thickener, etc., by subjecting purified xanthan gum to heat treatment in powdery state. SOLUTION: Spinnability of an aqueous solution of purified xanthan gum is lowered and modified so as to have >=1200cps viscosity in an aqueous solution having 1% concentration at 25 deg.C by adding an acid to a purified xanthan gum in powdery state, preferably at >=60 deg.C and subjecting the xanthan gum to heat treatment.
Patent JP-S6087150-A (JP)
Title: Sheet reversal device
Inventor: ISHII YOSHIHIRO
IPC: B65H15/02
Filed: 1983-10-14
Abstract: PURPOSE:To make revensal motion of stacked sheets automatically by furnishing a sheet rising arm, which revolves more than 90 deg. between an endless belt with a horizontal plane as reference surface. CONSTITUTION:When a group of stacked sheets S' are sent onto an endless belt 32, No.2 cylinder 41 will be put in operation to turn a sheet receipt arm 36 upward until it stand on the endless belt 32 upright. When this sheet group S' has reached the place of said sheet receipt arm 36, they run against the arm 36, to stop there, and at the same time, a sheet sensor PH3 on another arm for raising the sheets is actuated to emit a signal, according whereto No.1 cylinder 37 is actuated to turn the sheet raising arm 35 upward. This upward turn of the sheet raising arm 35 causes rise of the stacked sheet group S' together with it to be supported by the sheet receipt arm 36, and then the sheet group S' turns together with the arm 36 to be inverted up and down, and is transported forward in this inverted condition.
Patent JP-S6170112-A (JP)
Title: Oil passage of engine
Inventor: SAWAKI YASUSHI
IPC: F02B61/02
Filed: 1984-09-14
Abstract: PURPOSE: To enable a large amount of oil to be smoothly returned into a crankcase, by returning oil, supplied to a cylinder head, into the crankcase through a pipe outside a cylinder block. CONSTITUTION:An oil passage 600 is constituted by a pipe 602 connecting a main discharge passage 110 with an oil passage 506 formed inside a crankcase 504. Consequently oil, discharged from an oil passage 514 connecting a crankcase 512 with an oil pan 510, not interfering with oil, returned from a cylinder head 10 to the oil pan 510, causes the oil both discharged from the oil passage 514 and returned from the cylinder head 10, to be smoothly discharged into the oil pan 510.
Patent JP-S59214024-A (JP)
Title: Copying machine
Inventor: TAKEOKA YOSHIHIKO
IPC: G03B27/62
Filed: 1983-10-14
Abstract: PURPOSE:To automate copying office work by reading an original through the 1st exposure, setting a copying mode with its readout signal, and performing copying operation through the 2nd exposure according to the mode. CONSTITUTION:A feed roller 20 and a separating roller 21 rotate with the signal of the start of copying and the uppermost one original mounted on a support plate 19 is separated and fed. This original is conveyed through register rollers 22 and 23 and a roller 24 and among detecting means 26, 27, and 41 and located at the exposure position of a platen 15. While the original is conveyed, a mark is read by a photodetecting element 27 and a window 40 is read by a photodetecting element 26 to complete the copy mode corresponding to the mark. Then, another original is fed similarly and various copy modes are controlled successively and automatically through the operation of detecting means to perform copying operation.
Patent JP-S6437139-A (JP)
Title: Stereo demodulating circuit
Inventor: TOCHIHARA HIROAKI
IPC: H04H40/45
Filed: 1987-07-31
Abstract: PURPOSE:To obtain a stable switching signal throughout a wide temperature range by generating the switching signal synchronized with a subcarrier by a PLL circuit in the polar system. CONSTITUTION:In a frequency dividing means 13 of a PLL circuit 14, the output of a voltage controlled oscillator 4 which generates four fold subcarrier frequency is divided in a first frequency dividing circuit 5 by 1/2 and is divided in a second frequency dividing circuit 6 by 1/4. A phase shifter 7 generates a first switching signal whose frequency and phase coincide with those of the subcarrier and a second switching signal which has the same frequency as the subcarrier and has a phase dif ferent from the subcarrier by 180 deg. on the basis of outputs of frequency dividing circuits 5 and 6. Since analog switches 8 and 9 receive first and second switching signals and are turned on/off, they are accurately turned on/off in positive/negative half cycles of the subcarrier.
Patent JP-H1122859-A (JP)
Title: Piping structure and piping joint
Inventor: KONISHI NOBUO
IPC: H01L21/027
Filed: 1997-07-04
Abstract: PROBLEM TO BE SOLVED: To insert an inner tube without a hitch by arranging a taper part having an inside surface whose diameter contracts toward a first inserting part from a second inserting part between the first inserting part and the second inserting part, and forming a first inserting part side end part of the taper part in an inside diameter approximate to an outside diameter of the inner tube. SOLUTION: A first inserting part 12 to insert an outer tube 21a and a second inserting part 13 to insert an outer tube 21b into its opposite side, are arranged in a joint 11, and the outer tubes 21a and 21b inserted into the inserting parts 12 and 13 are connected to each other in a straight line shape. A taper part 14 whose diameter contracts toward 12 from the inserting part 13, is formed on an inside surface between the inserting parts 12 and 13, and an inserting part 12 side end part 14a of the taper part 14 is formed in an inside diameter having the size approximate to an outside diameter of an inner tube 22.  Therefore, when the inner tube 22 is inserted into the outer tube from the outer tube 21b side, even if there is an outward projecting part 24 on the tip of the inner tube 22, its tip part advances by being guided by the taper part of the joint 11, and the inner tube 22 can be inserted without hitching on a step part 25 on the tip of the outer tube 21a.
Patent JP-S6253981-A (JP)
Title: Novel benzoic acid derivative
Inventor: SHIYUDO KOICHI
IPC: A61K31/47
Filed: 1985-09-02
Abstract: NEW MATERIAL:A benzoic acid derivative shown by the formula I[R is alkyl; R1 is halogen; R2 is H, methyl or ethyl; X is O, S, =SO2, =SO, =NH, =N-CH3 or =N<+>(CH3)2; Y is -CONR3-, -NR3CO-, -COCR3=CR3-, -CR3=CR3CO-, -N=N-, -N=N(O)-, -N(O)=N- or group shown by the formula II (R3 is H, methyl or ethyl)]. EXAMPLE:Terephthalic acid(4,4-dimethylchromanyl)amidomethyl ester. USE:A remedy for diseases such as cartilaginous disease, dermatosis such as psoriasis, malignant disease such as leukemina, etc., caused by stagnation or abnormality of differentiation. PREPARATION:For example, a corresponding acetophenone is condensed with a terephthalaldehydric acid ester or its derivative in the presence of a base to give a compound shown by the formula I wherein Y is -CO-CR3=CH- group.
Patent JP-S6439279-A (JP)
Title: Motor drive
Inventor: NAKAMURA KAZUHIKO
IPC: H02P7/06
Filed: 1987-07-31
Abstract: PURPOSE:To prevent erroneous braking only through a single speed detector, by outputting a brake start signal and a brake release signal according to the length of period of a speed detection signal and outputting a brake disable signal upon shortening of the length of period. CONSTITUTION:A speed error signal is fed from an error operating section 5 through a signal switching section 23 and a drive section 26 to a DC motor 16. The drive section 26 switches its output according to a rotary direction control signal. When a speed detection signal exceeds over an upper limit, FF21 is set to switch the switching section 23 thus feeding a brake signal. When the speed detection signal drops below a lower limit, FF21 is switched thus to feed a speed error signal again. When the length of period of the speed detection signal reduces, FF21 is reset by an output from a brake disabling section 20 thus releasing break.
Patent JP-H0748100-A (JP)
Title: Clamp device for forklift
Inventor: MASE TAKESHI
IPC: B66F9/18
Filed: 1993-08-04
Abstract: PURPOSE:To improve tracing performance of clamp pads to the side face shape of cargoes to be clamped in a clamp device for a forklift which can clamp a plurality of arranged cargoes simultaneously. CONSTITUTION:In a clamp device comprising a plurality of clamp pads 6 arranged in parallel in the longitudinal direction on the clamp face sides of left and right clamp arms 4 respectively, a support pin 8 having a ball 10 on its tip part for supporting the pads is attached to the arm parts 4b of the clamp arm 4 in such a way as moving axially and a socket 12 provided on the back face of the clamp pad 6 is fitted into the ball 10 of the support pin 8.
Patent JP-H04232847-A (JP)
Title: Apparatus for measuring water content of material
Inventor: KURUTO KEERAA
IPC: G01R27/06
Filed: 1991-08-02
Abstract: PURPOSE: To automatically measure the moisture of a material in low cost with high accuracy by using pulses having a connection time large as compared with the estimate time between the start end of a signal and the echo of the start end. CONSTITUTION: Voltage build-up having a relatively steep signal side edge is generated on a measuring conductor passage consisting of two parallel measuring rods by the signal source K1 connected to a conductor. The internal resistor of the signal source K1 corresponds to the characteristic impedance of an open conductor adjustable with respect to the center of a measuring region. When the measuring region is proper, only a slight reflecting obstacle is generated in the connection line between the signal source K1 and the measuring conductor and an echo is affected by the moisture of a dielectric to reach the start end of the conductor after the elapse of the echo running time tx depending on the physical data of the conductor. Then, a switch K2 is changed over to compare the voltage across the electric terminals of the measuring rods with a predetermined value and the pulses of a self-scanning oscillator are counted only during the time from the start of excitation pulses and the arrival of the echo to evaluate the moisture of a material to display the same.