baber/WOPTO huggingface dataset:
Patent JP-S62131786-A (JP)
Title: Speed controller for brushless motor
Inventor: SUGIHARA YOSHIO
IPC: H02P6/16
Filed: 1985-12-02
Abstract: PURPOSE:To detect the counterelectromotive force of a driving coil at a low signal level without using the diode of large capacity by converting, rectifying and smoothing the level of the counterelectromotive force generated in the coil. CONSTITUTION:Counterelectromotive forces of driving coils 1, 2 generated at higher potential than a positive side power supply terminal voltage during energization pause time is level-converted by a level converter 50 composed of resistors 14-17 and buffer circuits 12, 13. The level-converted signal is input to a rectifying and smoothing circuit composed of diodes 9, 10 and a capacitor 7 to detect its peak value. The detected peak value is compared by a comparator 11 with a reference voltage, an output current of an energization converter 6 is regulated so that the difference becomes zero to control the speed of a motor.
Patent JP-H05109996-A (JP)
Title: Semiconductor device
Inventor: NATORI AKIO
IPC: H01L21/28
Filed: 1991-10-18
Abstract: PURPOSE:To prevent etching of an element isolation film, formation of a parasitic MOS transistor and a short-circuit of an impurity diffused layer and a silicon substrate by forming a region in which a silicide is not formed by using a silicon nitride film. CONSTITUTION:An element isolation film 4 is formed on an N-type silicon substrate 1, a P-type impurity diffused layer 2 is formed on an active region, and a silicon nitride film 7 is formed on the entire substrate 1. Then, a photoresist film 6 is formed on a region in which a silicide is not formed in the active region, with the film 6 as a mask the film 7 is etched, and the film 7 remains on the surface of the layer 2 of the region in which the silicide is not formed. Thereafter, the film 6 is removed, titanium 8 is formed, and annealed to react the titanium 8 with silicon of a lower layer to form a titanium silicide 9. Further, reactive product and unreacted titanium on the films 7 and 4 are removed by etching, and the silicide 9 is selectively formed on the layer 2.
Patent JP-H04146912-A (JP)
Title: Continuous production of propylene/alpha-olefin block copolymer
Inventor: NOBUHARA HIDEO
IPC: C08F297/08
Filed: 1990-10-09
Abstract: PURPOSE:To obtain a block copolymer of different comonomer ratio in good productivity without changing polymerization pressure by feeding a polymerization activity suppresser to the second-stage copolymerization reaction system in the two-stage vapor-phase continuous production of a propylene/alpha-olefin block copolymer. CONSTITUTION:A vapor-phase continuous production process comprising (co)polymerizing propylene with optionally another alpha-olefin in the first stage in the presence of a stereoregular polymerization catalyst comprising a titanium-containing solid catalyst component and an organoaluminum compound to produce a propylene homopolymer or a copolymer of propylene with another alpha-olefin and feeding propylene and another alpha-olefin in the presence of the polymerization reaction mixture obtained in the first stage and copolymerizing them so that the ratio between the amounts of the polymerized monomers may be 10/90-90/10, wherein a polymerization activity suppresser is fed to the copolymerization reaction system in the second state to suppress the copolymerization reaction activity of the catalyst in the second stage to a value which is 5-95 % of the value in the case when no polymerization activity suppresser is fed to the system. Examples of the polymerization activity suppresser include carbon monoxide, oxygen, carbonyl sulfide, ammonia, nitrogen monoxide, methanol and water.
Patent JP-H11108280-A (JP)
Title: Flexible pipe joint
Inventor: HASHIZUME KOICHI
IPC: F16L41/02
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To improve earthquake resistance without generating coming off or the like in a connection part even when a large external load of earthquake or the like is applied relating to this connection part between a pipe line constituting a sewerage pipe and a branch pipe connected to the pipe line. SOLUTION: In a flexible unit 9 forming a pipe wall 9a in a halfway part by a rubber element material formed in bellows shape having flexibility in a bending direction relating to a pipe axial direction and the same direction to this pipe axis, a tubular part 17 of a saddle unit 4 is connected to a connection part 8 of one opening 5, and to the other opening 6, a branch pipe 3 is connected. In this way, in the case of receiving an external load of earthquake or the like, a change by this load is followed, by deflecting in a bending direction relating to a pipe axial direction of the branch pipe 3 and in the same direction to the pipe axial direction, in a sewerage main pipe 2 constituting the pipe line and the branch pipe 3 and a connection part thereof, damage or the like is prevented, coming off or the like of these connection parts is also prevented.
Patent JP-H11111074-A (JP)
Title: Fire resistant electric wire
Inventor: MANABE TOMOSHI
IPC: H01B7/295
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To improve fire resistance, and stably supply electric power by constituting an interposer of a specific resin containing an inorganic filler and an additive. SOLUTION: Plural insulated conductors formed by successively covering the surface of a conductor 1 with a fire resistant layer 2 and an electric insulator 3, are twisted together with an interposer 4, and a tape 5 is wound round its surface, and a sheath 6 is also applied on its periphery, and a fire resistant electric wire 10 is constituted. The interposer 4 is formed of a polypropylene resin containing an inorganic filler and an additive. Here, the interposer 4 is set in the blending ratio of 40 to 70 wt.% of the polypropylene resin, 25 to 55 wt.% of the inorganic filler and 1 to 5 wt.% of the additive. Here, it is set so as not to exceed 100 wt.% in total. The inorganic filler blending ratio is set to this range, and it can be worked in a film shape, and shrinkage is reduced.  An additive effect is secured in this additive blending ratio, and the deterioration of workability is also prevented.
Patent JP-2000094443-A (JP)
Title: Prepreg, multilayer printed board and manufacture thereof
Inventor: IMASHIRO YASUO
IPC: B29K105/06
Filed: 1998-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a prepreg which solves problems in prior art, has good flexibility at room temperature, is free from resin stripping, and excellent in heat resistance and electrical insulation property after press-molding, a multilayer printed-wiring board using the prepreg having the excellent properties, and a method for manufacturing the multilayer printed-wiring board. SOLUTION: This prepreg comprises a mixture of a polycarbodiimide resin and an epoxy resin and is in a form of a film, or comprises a mixture of a polycarbodiimide resin and an epoxy resin and a base material. In a multilayer printed-wiring board where an inner layer base plate and an insulating adhesive layer is alternately laminated and glued, the multilayer printed-wiring board uses the prepreg as the insulating adhesive layer. Further, in a manufacturing method for the multilayer printed-wiring board, the necessary part between the inner layer base plates is conducted, after the inner layer base plate and the prepreg are alternately laminated and glued.
Patent JP-H04147519-A (JP)
Title: Fireproof electric wire
Inventor: ETO KAZUO
IPC: H01B7/02
Filed: 1990-10-09
Abstract: PURPOSE:To realize the forming of a fireproof wire having an excellent insulating ability at a high temperature by winding fireproof layers round a conductor by means of a synthetic laminated mica tape. CONSTITUTION:A synthetic laminated mica tape 2 is formed by adhering a synthetic laminated mica 2a which is impregnated with silicon resin and has the thickness of about 0.12mm to one side of a backing material 2b consisting of a polyethylene film having the thickness of 25mu by means of the silicon resin, and the synthetic laminated mica tape 2 is wound round a copper wire 1 having a diameter of 22mm while superposing with each other by the 1/2 width so that the synthetic laminated mica 2a can be brought into contact with the copper wire. Furthermore, a synthetic laminated mica tape 2' formed in the same way with the synthetic laminated mica tape 2 is wound round over the synthetic laminated mica tape 2 while superposing with each other by the 1/2 width so that the synthetic laminated mica 2a of the synthetic laminated mica tape 2' can be brought into contact with the backing material 2b consisting of the polyethylene film.
Patent JP-H08136527-A (JP)
Title: Deaerator in water quality monitor
Inventor: KAWAMOTO KOTARO
IPC: G01N33/18
Filed: 1994-11-07
Abstract: PURPOSE: To reduce the flow out of a sample water when the bubbles are separated therefrom in order to prevent the intrusion of bubbles into a water quality meter. CONSTITUTION: The deaerator 1 is provided with an overflow port 2, a water supply port 3 and a delivery port 4, respectively, at the upper end part, in the center and at the lower end part of an enclosed tubular body 1a. The delivery port 4 is coupled through a piping 6 with a water quality meter 7, comprising a residual chlorine meter, a pH meter, a turbidity tintometer, etc., thus constituting a water quality monitor. In such a water quality monitor, a motor ON/OFF valve 9 is provided at the overflow port 2 and a controller 10 controls the motor ON/OFF valve 9 to open periodically or as required.
Patent JP-H1095214-A (JP)
Title: Suspension controlling device
Inventor: YAMADA NAOKI
IPC: B60G17/015
Filed: 1996-09-19
Abstract: PROBLEM TO BE SOLVED: To decrease noises caused by detectors equipped for a suspension control effectively, ensure to prevent phase delay for detecting values, and control damping force appropriately. SOLUTION: The displacement of road is assumed by converting automotive vertical shifts into electric signals by an automotive body height detecting means HD, maintaining a simultaneity for outputs of the automotive body height detecting means HD by a road surface displacement evaluating means RS. A sprung speed and a relative speed between springing and sprung are calculated by entering these outputs into a filtering means FM, calculating the automotive body height assumed values based on status formulas according to the outputs of the automotive body height detecting means HD through a Kalman filter KF, multiplying the difference between this automotive body heights assumed values and the outputs of the automotive body height detecting means HD by a prescribed kalman gain to feedback.  The actuator of the absorber is controlled by a calculating speed ratio of the sprung speed against the relative speed by a speed ratio calculating means SR, setting a target damping by a target damping force setting means DP based on this calculated results.
Patent JP-2001093734-A (JP)
Title: Stacked inductor and method for manufacturing thereof
Inventor: NOYORI YOSHINARI
IPC: H01F41/12
Filed: 1999-09-27
Abstract: PROBLEM TO BE SOLVED: To increase the Q of a closed magnetic circuit laminated inductor used for a high frequency circuit board of mobile communication equipment, etc., while maintaining its inductance value. SOLUTION: A conductor width W of a coil is set to 30 to 49 μm, and the ratio of a conductor thickness T to the conductor with W is 0.4 to 3. By making conductor width of the coil small, a part where a small current flows is removed to efficiently improve the Q-value. At the same time, by making the conductor thickness large, increase in resistance due to the narrowing of the coil is compensated to make the total resistance and therefore inductance constant.
Patent JP-H055003-A (JP)
Title: Colored spherical fine particle and its production
Inventor: KITAHARA SHIZUO
IPC: C08J3/20
Filed: 1991-09-25
Abstract: PURPOSE:To provide a method for producing colored spherical fine particles containing a colorant homogeneously dispersed in polymer particles and the colored spherical fine particles. CONSTITUTION:A compound having >C=N<+ bond in the molecule, together with a colorant, is dissolved and dispersed in a polymerizable monomer component, which is then polymerized.
Patent JP-2000102252-A (JP)
Title: Power conversion device
Inventor: KASHIMOTO MASAHISA
IPC: H02M3/28
Filed: 1998-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a conversion device for power, which ensures the safety of a semiconductor rectifier for rectification and furthermore realizes reduction in size and weight of the device. SOLUTION: A power conversion device comprises at least a transformer 62 for voltage conversion, a semiconductor rectifier D for rectification, a smoothing coil 65 and a smoothing capacitor 66 for smoothing rectified voltage. In this power conversion device the semiconductor rectifier D is so placed that its major surface is almost perpendicular both to the closest side of the transformer 62 and to the major surface of a board 101. Thus, the major surface of the semiconductor rectifier D of the largest area is hardly heated by radiant heat from the side of the transformer. Therefore, the temperature of the semiconductor rectifier can be reduced.
Patent JP-H07118924-A (JP)
Title: Phosphorus-containing polyester fiber, cloth and dyeing thereof
Inventor: MATSUOKA TAKESHI
IPC: D01F6/84
Filed: 1993-10-29
Abstract: PURPOSE:To obtain the polyester fiber cloth having a high strength retention both before and after dyeing by dyeing a copolymer of ester containing ethylene terephthalate units with a specific amount of phosphorus compound under specific dyeing conditions. CONSTITUTION:An ester containing ethylene terephthalate units is copolymerized with one or more of phosphorus compounds selected from the groups of formulas I (R<1>-R<3> are H, monovalent organic group of 1 to 18 carbon atoms), II (R<4> is a monovalent organic group of 1 to 18 carbon atoms) and III (R<5> is a monovalent ester-forming group; A is a divalent organic group of 1 to 18 carbon atoms; the compound forms intra-molecular anhydride ring) in an mount of 0.05 to 4wt.% as a phosphorus element to give a phosphorus-containing polyester fiber. The cloth of this polyester fiber is dyed with a dispersion dye in a dye bath which pH is buffered to 5-6.5 and contains an acetate salt of an amine such as n-butyl-amine to give the brightly died cloth having higher than 80% of the strength retention before and after dyeing.
Patent JP-H0576615-A (JP)
Title: Work method and gas chamber and human body respiration protector related thereto
Inventor: ARAKI KATSUTERU
IPC: E04H5/02
Filed: 1991-09-24
Abstract: PURPOSE:To dispense with a method in which the welding of a titanium alloy is conducted in a vacuum chamber by means of manipulator operation from the outside and which is expensive, fixed in facilities and devoid of flexibility. CONSTITUTION:Helium is filled into a gas chamber 3 whose lower part is open, and a person M wearing a human body respiration protector 4 enters by passing through the bottom. The human body respiration protector 4 is sealed except for the skirt 5, and air is fed into the protector 4 from a ventilator 10 through an air feed pipe 9, and exhaust goes out into atmosphere through the skirt 5.
Patent JP-H11162127-A (JP)
Title: Magnetic head transfer device for hard disk drive
Inventor: JANG DEOK-HWAN
IPC: G11B5/54
Filed: 1998-09-25
Abstract: PROBLEM TO BE SOLVED: To prevent a magnetic head from being unlocked by an impact transmitted from the outside after parking by providing a bimetal member which is reversibly deformed and engaged with or disengaged from the coupling slot of a turning piece by generating heat when a current is impressed upon the member from a prescribed power source to the end section of a turning shaft member. SOLUTION: A bimetal member 160 is provided in the end section of a rotating shaft member 134 and a coupling slot 136 which is engaged with or disengaged from the member 160 is provided in a swinging arm 132 as the locking means of a turning piece 130 when a magnetic head 150 is positioned to the parking area 121 of a hard disk 120. When the power supply to the bimetal member 160 is turned on, the bimetal member 160 thermally expands and gets out of the slot 136 and, when the power supply is turned off, the member 160 is not thermally expanded and fits in the slot 130 as the head 150 is positioned to the parking area 121. Therefore, the turning of the swinging arm 132 can be locked completely and firmly.
Patent JP-2001088440-A (JP)
Title: Ink jet recording material
Inventor: AIKAWA TAKAYUKI
IPC: B41M5/52
Filed: 1999-09-27
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet recording material not generating uneven printing while keeping sufficient pencil writing properties and erasing properties and provided with transparency. SOLUTION: An ink recording material is provided with an ink acceptive layer on a substrate, and the ink acceptive layer is so constituted as to contain at least a binder resin, an inorganic pigment and resin beads.
Patent JP-H10113223-A (JP)
Title: Cosmetic cotton
Inventor: KIKUCHI KIMITAKA
IPC: D04H1/4382
Filed: 1996-10-15
Abstract: PROBLEM TO BE SOLVED: To water absorptivity and water resistance and to obtain an excellent stiffness and volumintus feel by forming the non-woven fabric of cosmetic cotton consisting of an inside layer and an external material of side by side type composite polyester staple fibers and non-composite polyethylene terephthlate staple fibers, etc. SOLUTION: The cosmetic cotton used for removing manicure, etc., consists of the inside layer 3 made of the non-woven fabric and the external material 4 enveloping the layer. In such a case, the non-woven fabric is formed of [A] side by side type composite polyester staple fibers of 1 to 5 denier in the fineness of single fibers, [B] core and sheath type composite polyester staple fibers of 0.1 to 10 denier in the fineness of single fibers, [C] non-composite polyethylene terephthalate short fibers of 1 to 10 denier in the fineness of single fibers and [D] cotton. At this time, the non-woven fabric is preferably prepd. by incorporating 20 to 30wt.% [A], 10 to 20wt.% [B], 25 to 35wt.% [C] and 25 to 35wt.% [D] therein.
Patent JP-H04150936-A (JP)
Title: Method for preventing caking of powder
Inventor: ONAKA TADAO
IPC: C05G3/30
Filed: 1990-10-12
Abstract: PURPOSE:To make the solubility of a powder to various solvents excellent and to reduce the effect on the physical properties of the powder and to effectively suppress the caking of the powder by using poly(oxyethylene)diglycolic acid as the anti-caking agent of the powder. CONSTITUTION:Poly(oxyethylene)diglycolic acid is used as the anti-caking agent of a powder having anti-caking properties such as piperadine or TEDA. This poly(oxyethylene)diglycolic acid shows extremely excellent solubility to various solvents. Therefore, when an aqueous solution or org. solvent solution of poly(oxyethylene)diglycolic acid is mixed with the powder and the obtained mixture is dried, the film of poly(oxyethylene)diglycolic acid is formed to the surface of the powder to microencapsulate a crystal. By this method, the contact of a crystal forming component with the open air is cut off and the absorption, sublimation and condensation of moisture are suppressed to prevent caking.
Patent JP-H03133265-A (JP)
Title: Television receiver
Inventor: TAGA SHIRO
IPC: H04N5/907
Filed: 1989-10-19
Abstract: PURPOSE:To make time axis fluctuation hardly in existence in a video signal read from a picture memory by obtaining a clock whose phase completely follows horizontal synchronizing signal of an input video signal from a 1st clock generating circuit and obtaining a clock whose frequency fluctuation is small from a 2nd clock generating circuit. CONSTITUTION:Since a clock CLKb outputted from a clock generating circuit 9B is frequency-divided and a double speed horizontal synchronizing signal H2D' is generated, it is not required to decrease the high frequency signal followed by the clock CLKa outputted from a clock generating circuit 9A be cause of the deflection characteristic of a color picture tube 7. That is, the clock CLKa follows the phase of the horizontal synchronizing signal HD of a video signal SV. Moreover, since the clock CLKb outputted from the clock generating circuit 9B is sufficiently stable with respect to the CLKa outputted from the clock generating circuit 9A, time axis fluctuation does not almost exist in the video signal read from the picture memory 20. Thus, even when a rapid time axis fluctuation exists in the video signal SV, excellent signal processing is always implemented in the signal processing circuit 3.
Patent JP-H09116585-A (JP)
Title: Receiver
Inventor: TAKAHASHI RYOJI
IPC: H04L27/22
Filed: 1995-10-20
Abstract: PROBLEM TO BE SOLVED: To eliminate the need of adjusting a signal level and to cope with input from plural circuits as well by providing an adapting block for detecting data provided with fluctuation in an amplitude value among the data converted in an A/D converter, excluding a bit equivalent to the detected data and taking out only remaining bit data. SOLUTION: This receiver is provided with the adapting block 1 composed of a data holding part 4, an operation bit detection part 6 for detecting the data provided with the fluctuation of a level among the data outputted from the A/D converter 3 and indicating them to a selection part 5 and a transmission bit adapting part 7 for converting only valid data outputted from the selection part 5 for taking out only the bit specified by the detection part 6 and selecting only the valid data to a known bit number requested by the digital signal processing circuit 8 of a next stage. Then, the amplitude value of demodulated signals is converted to an appropriate value and processed in the adapting block 1 provided on the output side of the A/D converter 3.
Patent JP-H09107842-A (JP)
Title: Apparatus for removing underwater sediment
Inventor: TEZUKA HISAO
IPC: A01K61/00
Filed: 1995-10-20
Abstract: PROBLEM TO BE SOLVED: To provide the subject apparatus capable of readily removing bait, discharged material, etc., of fishes deposited under underwater crawl without polluting water area in the periphery by sucking and removing underwater sediment through a suction pipe while moving a barge body in water. SOLUTION: A suction pump 6 is operated while submerging and moving a barge body 2 in water by a means controlling and operating the barge body 2 and the suction pump 6 from the land. Thereby, sediment in water is sucked through a suction pipe 5 and recovered into a recovery cage 7. Furthermore, the sediment recovered in the recovery cage may be carried to a prescribed place by moving the barge body 2. A means for controlling and operating the barge body 2 and the suction pump 6 is constituted of a control chamber 13 installed on land, a power source, a control unit 10, a charging and discharging tank 3 for submerging and floating the barge body 2 and a screw 4, etc., for moving the barge body 2. The suction pipe 5 is rotated or made to look up and down, e.g. by actuators 8 and 9.