baber/WOPTO huggingface dataset:
Patent JP-H05283959-A (JP)
Title: Automatic gain control system
IPC: G01S7/52
Filed: 1992-04-02
Abstract: PURPOSE:To provide an excellent automatic gain control system capable of obtaining a correct output signal even when a pulse like alternating input signal is inputted to an automatic gain control system. CONSTITUTION:The automatic gain control system is composed of an input terminal 1, a detection circuit 2, a smoothing circuit 3, a divider 4, an output terminal 5, an analog switch 6, a signal attenuator 7, a signal comparator 8 and a sample and hold circuit 9. When the signal which passes through the detection circuit 2 and the signal attenuator 7 is larger than DC component to be the output of the smoothing circuit 3 by comparing the input signal which passes through the detection circuit 2 and the signal attenuator 7 with the DC component to be the output of the smoothing circuit 3 in the signal comparator 8 and by inputting the pulse like signal whose amplitude becomes large rapidly in the input terminal 1, the analog switch 6 is switched and a hold is performed for the DC component just before the input signal changes for the time. Thus, the divisor of the divider 4 is made to be constant and the degradation of the gain is prevented.
Patent JP-S5738310-A (JP)
Title: Manufacturing apparatus for fine powder of silicon carbide or silicon nitride
Inventor: SUZUKI HIROSHIGE
IPC: C01B31/36
Filed: 1980-08-11
Abstract: PURPOSE:To obtain a product having submicron grain size in a high yield by attaching an agitating and mixing device to the titled apparatus so as to agitate and mix starting materials with heating when the materials are continuously conveyed to the reaction tube and reacted. CONSTITUTION:Mixed starting materials for manufacturing fine powder of silicon carbide or silicon nitride are dropped on a screw conveyor 5 from a hopper 3 and continuously fed to the high temp. part of a reaction tube 6 set in a heating element 10 with the conveyor 5. The materials are well agitated and mixed at the reaction temp. with an agitating and mixing device 7 which is movable in synchronism with the conveyor 5 or independently, whereby the contact of SiO formed in the reaction process with carbon as well as the contact between the starting materials is made perfect to allow the reaction to proceed uniformly at a relatively low temp. The reaction product is introduced into a cooling chamber 9 and taken out of an outlet 16 through a storage chamber 13 and a preparatory chamber 15.
Patent JP-H01279279-A (JP)
Title: Heat-roller fixing device
Inventor: TODA NOBUYUKI
IPC: G03G15/20
Filed: 1988-05-02
Abstract: PURPOSE:To modify the meandering or wrinkles of continuous copying paper by actuating a driving source and separating a backup roller from a heat roller through a link contacted with a rotating eccentric cam by means of the driving source. CONSTITUTION:When a motor 9 is rotated, each eccentric cam 6 and 6' is rotated through a pinion 10 and gear 8 and links 7 and 7' contacted with the cams 6 and 6' are raised and, as a result, the backup roller 2 is press-contacted with the heat roller 1. When the continuous copying paper 11 meanders or wrinkles are produced in the paper 11, a tractor is stopped and, at the same time, the motor 9 is re-actuated. When the motor 9 is re-actuated, the eccentric cams 6 and 6' are rotated and each link 7 and 7' descends and, as a result, the backup roller 2 is separated from the heat roller 1. Thus the meandering of the continuous copying paper and occurrence of wrinkles in the copying paper can be prevented with a simple structure and an excellent paper carrying state can be obtained.
Patent JP-H04336979-A (JP)
Title: Power tool
Inventor: SOSHIN KOJI
IPC: B25B23/14
Filed: 1991-05-15
Abstract: PURPOSE:To make the fastening torque at a constant value and to improve the torque accuracy of the fastening by providing a control circuit to control the rotation of a motor from the position immediately before screwing perfectly to the position of screwing perfectly, in a constant speed condition. CONSTITUTION:A sensor to detect the condition immediately before the seating of a screw is provided. The rotation of a motor 1 is made at a constant speed by a control means 4 from the position immediately before the screw is seated to the perfect seating. And when the screw is seated, the current feeding to the motor 1 is stopped by the control means 4. Consequently, the shock force when the screw is seated is made constant, the fastening torque is made constant, and the fastening torque accuracy is increased.
Patent JP-S602854-A (JP)
Inventor: TAKESHITA ISAO
IPC: F25B13/00
Filed: 1983-06-17
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-S601607-A (JP)
Title: Magnetic recording and reproducing device
Inventor: GOTOU HIROSHI
IPC: G11B5/035
Filed: 1983-06-17
Abstract: PURPOSE:To corret extremely easily the high band of the eproduction equalization characteristics in a low-speed reproduction mode, by dividing the feedback resistance of a reproduction equalization amplifier and inserting a series resonance circuit to the dividing point of the resistance in order to compensate a high band loss. CONSTITUTION:In a low-speed reproduction mode when a large high band loss is produced, a resonance circuit consisting of an inductance L3, a capacitor C6 and a damping resistance R3 is inserted to the intersecting point between resistances R6 and R7. This resonance circuit is inserted between earths via a switching transistor (TR)4 after applying the positive voltage to a terminal 17 only when the tape driving speed is low and making a TR4 conduct. In such a constitution, the impedance is lowered with the resonance frequency of the L3 and the C6. Thus the peak characteristics can be obtained as shown by (f) in the figure. Then the R7 is properly selected to obtain the characteristics (g) approximate to the time constant of a high band by means of the time constant obtained from the R7 and the C6.
Patent JP-S63275051-A (JP)
Title: Production of optical recording medium
Inventor: SANTO TAKESHI
IPC: G11B7/26
Filed: 1987-05-07
Abstract: PURPOSE:To improve an operability and to attain an efficiency by projecting an ultraviolet ray vertically to a substrate face and further projecting the ultra violet ray externally of the endface of the substrate. CONSTITUTION:The two disk substrates 2 having at least one on which a recording layer 1 for recording information by laser light are bonded by an ultraviolet ray cured-type bonding agent 3 by holding a spacer or no spacer so as to place internally the recording layer 1. At the time of bonding the substrates 2, ultraviolet ray light sources 4' are placed respectively at the internal and the external sides of a surface vertical to the bonding surface of the substrate at the external periphery end of the substrate 2 to project the ultraviolet ray. Thereby, the ultraviolet ray cured-type bonding agent layer disposed on the disk substrate is cured to the end part of the substrate without a space to completely seal the recording layer and the high efficiency and the operability is improved.
Patent JP-S5735219-A (JP)
Title: Nox control apparatus for city garbage incinerator
Inventor: MISAWA TEI
IPC: F23N5/00
Filed: 1980-08-12
Abstract: PURPOSE:To make it possible to operate the city garbage incinerator under a low NOX condition by a method wherein an operating means for choking the air-fuel ratio by measuring the densities of NOX and O2 in the exhaust gas from the incinerator is provided and the quantity of air blown into the incinerator is reduced. CONSTITUTION:An algorithm block 3 for controlling NOX receives from a gas chromatograph a signal relating to the density of O2 and a signal relating to the density of NOX in the exhaust gas and generates an output signal eta for correcting the air-fuel ratio in accordance with a specific algorithm. Said algorithm first detects the density of O2 in the exhaust gas and when the detected value is below a permissible value of O2, it generates the output signal eta directed to increase the air- fuel ratio. On the other hand, it generates the output signal eta directed to choke the air-fuel ratio only when the average value of O2 is above the permissible value thereof and the average value of NOX is above the permissible value of NOX. The output signal from the algorithm block 3 is given as one of inputs to a multiplier 61 and corrects the quantity of air under a fire grate so that the air-fuel ratio changes in accordance with the density of O2 and the average value of NOX.
Patent JP-S591454-A (JP)
Title: Cyclohexenylacetamide derivative, its preparation and herbicide therefrom
Inventor: TAKEMATSU TETSUO
IPC: C07C233/13
Filed: 1982-06-28
Abstract: NEW MATERIAL:A compound of formula I (X is lower alkyl; m is 0-2; R1, R2 are H, lower alkyl; Y is lower alkyl, lower alkoxy, halogen; n is 0-2; where the cases where R1 and R2 are H and Y is lower alkyl are excluded. EXAMPLE:N-alpha,alpha-Dimethyl-4-chlorobenzyl-(1-cyclohexenyl)-acetamide. USE:Herbicide: it shows strong herbicidal effect against annual weeds in rice paddies such as barnyard grass or umbrella plant, perennial weeds such as MIZUGAYA (Cyperus serotinus ROTTB) and weeds in fields such as finger grass or smooth pigwood. PREPARATION:The reaction between a cyclohexenylacetic acid derivative of formula II or its reactive derivative and an alpha,alpha-dimethylbenzylamine derivative of formula III gives the compound of formula I . The reaction is effected in an organic solvent such as benzene in the presence of a reaction aid such as thionyl chloride.
Patent JP-H02286894-A (JP)
Title: Oil-encapsulated screw type vacuum pump
Inventor: TSUBOI NOBORU
IPC: F04C29/12
Filed: 1989-04-28
Abstract: PURPOSE:To enhance the EV (degree of vacuum attained) by furnishing a check valve at the discharge hole in the location unded the oil level in an oil tank, and thereby lessening leak-back of air from the discharge hole toward the suction hole side. CONSTITUTION:Space of a discharge hole 12 is made small, and a check valve 1 fitted with a leaf spring close to a discharge port 16, is fixed to the discharge port 16 on its discharge hole 12 side using a bolt 2, wherein the check valve shall be located under the oil level in an oil tank 3. The check valve 1 is opened only when the pressure in the space B between it and the discharge port 16 has become over the atmospheric so as to release the air discharged from the discharge port 16 out to the open air from the discharge hole 12 through the oil. That is, filling the part of discharge port with oil hinders the air leaking back from the atmosphere to the discharge port 16.
Patent JP-H06302921-A (JP)
Title: Optical amplifier
Inventor: KAGI NOBUYUKI
IPC: H04J14/02
Filed: 1993-04-13
Abstract: PURPOSE:To make distortionless analog transmission possible by a method wherein wavelength dependency in the wavelength region of optical signals to be transmitted is made flat, by combining and connecting in series two or more kinds of optical fiber amplifiers containing different amplification medium, so as to cancel the wavelength dependencies. CONSTITUTION:Optical fiber amplifier 1a, 1b are constituted of erbium-doped optical fibers, have different host glass compositions, and are different in wavelength dependency of the gain. At the wavelength of 1.55mum, the amplifier 1a has wavelength dependency of 0.03db/m/nm, and the amplifier 1b has wavelength dependency of 0.01db/m/nm. When the optical fiber amplifiers 1a and 1b are connected in series under the condition that the fiber length ratio is 1:3, the flat characteristics at a wavelength of 1.55mum can be obtained. Fusion-bonding is desirable for the connection of the optical fiber amplifiers 1a and 1b. An optical isolator 2 restrains oscillation due to excited light from a excited light source 3, return light, etc.
Patent JP-S63275201-A (JP)
Title: Magnetostatic device
Inventor: TSUTSUMI MAKOTO
IPC: H01P7/00
Filed: 1987-05-06
Abstract: PURPOSE:To obtain a magnetostatic device, which has a large value Q at a resonance frequency and the good separation of a spurious mode by making a device contain a conductor, formed on the surface of a ferrimagnetic base substance. CONSTITUTION:The magnetostatic device 10 contains YIG (yttrium, iron, garnet) thin film 12 as the ferrimagnetic base substance. The YIG thin film 12 is formed on one principal plane of a GGG (gadolinium, gallium, garnet) substrate 14 to be used as a mount, and further, a discoid conductor 16 is formed at the center of the surface of the YIG thin film 12. The conductor 16 is formed by adhering a copper foil, for instance, to the surface of the YIG thin film 12. Thus, the value Q of the resonance frequency is made larger, and the separation of its spurious mode is made better.
Patent JP-S5335197-A (JP)
Title: Magnet demagnetization
Inventor: YANAGIUCHI TADAHIRO
IPC: H01F13/00
Filed: 1976-09-13
Abstract: PURPOSE:To facilitate the demagnetization of a bonding magnet as well as enable it by adding a demagnetic field at low temperature.
Patent JP-H06320681-A (JP)
Title: Conductive grey molded covering
Inventor: DEIBITSUDO ESU KOBURUDEITSUKU
IPC: B32B27/00
Filed: 1994-04-26
Abstract: PURPOSE: To effectively form a bright color coating by a reduced amt. of paint by using graphite in the principal part of a conductive pigment and further using a white pigment. CONSTITUTION: The thermosetting molding and coating compsn. bonded to a molding support contains 100 pts.wt. of at least one polymerizable epoxy base oligomer with a wt. average mol.wt. of about 500-1,500 having at least two alkyl acrylate groups such as an acrylic ester or methacrylic ester and about 80-160 pts.wt. of at least one copolymerizable ethylenic unsaturated monomer. Further, this compsn. contains about 80-160 pts.wt. of at least one polymerizable monoethylenic unsaturated monomer having one -CO group and at least one -NH, -NH- or -OH group, about 5-150 pts.wt. of graphite and about 5-120 pts.wt. of at least one white pigment. By this constitution, good surface quality uniform in color is obtained.
Patent JP-H05119392-A (JP)
Title: Supporting unipod for camera and the like
Inventor: MORI AKINARI
IPC: F16M11/20
Filed: 1991-05-15
Abstract: PURPOSE:To use a unipod functioning as a supporting stick for a camera also as a mini tripod. CONSTITUTION:A unipod main body 1 is formed by successively fitting and inserting inside pipes 3-6 whose diameters are successively made smaller in an outside pipe 2 in a nest state so that it can be adjusted to be elongated and contracted, and fitting a bracket 12 for attaching a tripod head 11 to the upper end of the outside pipe. Two auxiliary sticks having nearly the same length as the shortest length at the time of contracting the unipod main body 1 are turnably attached to the bracket 12 at specified tilt angle.
Patent JP-H08307125-A (JP)
Title: Antenna mount structure for portable telephone set
Inventor: MORISHITA KATSUJI
IPC: H01Q1/24
Filed: 1995-05-09
Abstract: PURPOSE: To reduce the decrease in the antenna gain by extracting a small sized antenna in a direction parting from a head of a human body in the case of talking to reduce the energy absorbed by the human body thereby reducing the adverse effect onto the human body. CONSTITUTION: An antenna 1 is located to an upper side of a portable telephone set main body 2 in the case of carrying. When talking is difficult due to the effect of a human body, since the antenna position is shifted to extract the antenna 1 in a direction parted from a head of a human body, that is, in a direction of the side face of the main body 2 opposite to the human body being a side to which a speaker 3 and a microphone 4 used for talking are fitted. In this case, the antenna 1 and the main body 2 are connected by a coaxial cable. The coaxial cable is arranged in the inside of a slide plate 6 supporting the antenna 1 and the length of the coaxial cable is reserved so that the coaxial cable is moved by the movement of the slide plate 6.  Then the slide plate 6 is moved on the upper side of the main body 2 between the main body upper face position and a projected position toward the opposite direction to the speaker 3 and the movement is made by a finger tip of the operator.
Patent JP-H049238-A (JP)
Title: Production of outside ring
Inventor: OKUBO KIYOSHI
IPC: B23P13/00
Filed: 1990-04-27
Abstract: PURPOSE:To shorten the time for working and to improve the yield of a blank material by lessening the cutting away of the material and producing two pieces of outside rings from one piece of the blank material. CONSTITUTION:The blank material 16 is made of a metal to a short cylindrical shape and is obtd. by forming the intermediate part as a cylindrical surface part 17 which is not diametrally changed in an axial direction and forming both sides of this cylindrical surface part 17 as circular conical surface parts 18, 18 of the diameter decreasing toward end edges. This blank material is formed in a 1st stage. The surface of the blank material is turned to a desired shape in a 2nd stage and the cylindrical surface part 17 is blanked exclusive of plural points left in the cylindrical direction thereof by pressing in a 3rd stage. The intermediate part of continuous parts 20, 20 is cut by turning, etc., to obtain a pair of 2nd blank materials consisting of a tapered cylindrical part 13 and four pieces of tongue parts 21 in a 4th stage. The tongue part 21 of the 2nd blank material is made into a pawl piece 14 by milling in a 5th stage. The blank material is subjected to a heat treatment followed by deburring and grinding and is completed as the outside ring in a 6th stage.
Patent JP-2000308172-A (JP)
Title: Earphone
Inventor: TANAKA MASAMICHI
IPC: H04R1/10
Filed: 1999-04-19
Abstract: PROBLEM TO BE SOLVED: To improve comfortability at the time of wearing in the ear and to make an earphone hard to drop from the ear. SOLUTION: A recessed part 31 is formed at the central part of a supporting plate 29. The bottom part of the recessed part 31 is defined as a fixing plate 39 and a magnet part 33 and a pole piece 35 are laminated and fixed on this plate. On the supporting plate 29, an air hole 41 is formed near the magnet part 33 on the fixing plate 39, and a loop-shaped flat part 29b is formed around the outer periphery of the recessed part 31. On the fixing plate 39, together with the magnet part 33, a circuit board 37 is fixed so as to sandwich this magnet part. On the supporting plate 29, a vibrating film 45 is fixed so as to cover the recessed part 31. Over the side of the circuit board 37 of the supporting plate 29, a back case 49 having the flange part 49b is placed with its flange part 49b abutted to the flat part 29b.  A front case 51 having a plurality of sound holes 53 is fixed on the supporting plate 29 and the back case 49 so as to cover the vibrating film 45.
Patent JP-H0361678-A (JP)
Title: Vacuum pump with suction filter
Inventor: DEIITORITSUHI URUBAN
IPC: B01D46/30
Filed: 1990-04-27
Abstract: PURPOSE: To provide a vacuum pump furnished with a suction filter suitable for separating particulates having a large permeation value and of a particle size of more than about 1 μ by forming the filter as a filter fleece 18 made of high class steel fiber. CONSTITUTION: A filter is formed as a filter fleece 18 made of high class steel fiber and the high class steel fiber is made at least 4 μ thick. Additionally, the filter is formed as a metal fiber fleece of 1-3 mm thick which is sintered having weight of about 800-1000 g/m<2> and porosity of more than 90%. The filter fleece 18 is clamped between a flange 8 and a flange 11, and a range of the filter fleece 18 is certainly sealed by a seal ring 19 surrounding the filter fleece 18. The flange 11 is a constitutional member of an outlet pipe 12 of a rough filter 13, and the rough filter 13 is formed in a siphon shape of a central pipe part 14 and a easing 15 on the outside.
Patent JP-S592950-A (JP)
Title: Angle variation controller for motor-driven remote control mirror
Inventor: ISHIWATARI YOUICHI
IPC: B60R1/06
Filed: 1982-06-29
Abstract: PURPOSE:To prevent malfunction resulting from a noise from occurring, by constituting a manual switch circuit of a remote control mirror with respective changeover switch parts for both side mirrors and resistance to be provided among the respective switch parts and a control output terminal. CONSTITUTION:A manual switch circuit of a remote control mirror is constituted with respective changeover switch parts 17L and 17R for both side mirrors and resistances R20-R24 among the respective changeover switch parts 17L and 17R and control output terminals c-f. Now, when a contact point of only a switch SWaL is switched to a power source terminal (a) side, the resistance R20 is electrified, electric voltage is generated between both ends of the resistance R20 and the terminal (c) is turned into ''H''. A motor, therefore, is driven through a gate circuit and a mirror driving circuit and an angle of the left side mirror is varied in the left side direction. When a switch SWSL is turned ON, a terminal (b) is turned into ''H'' and the angle of the left side mirror is varied upward. Similarly, when each of the switches is changed over appropriately, angles of both side mirror are varied appropriately in a right and left and an up and down directions.
Patent JP-S5540008-A (JP)
Title: Member forming die for production of fences or the like
Inventor: CHIBA MASAHITO
IPC: B21D39/06
Filed: 1978-09-11
Abstract: PURPOSE: To make easy the insertion of long-length tubular members for fences into inside and make volume production of fences, etc. advantageous by moving one of the dies consisting of a pair of split dies in the longitudinal direction thereby reducing and expanding the inside of the dies.  
     CONSTITUTION: As a split die 11 is moved in the arrow direction by holding its gripe 14, the gripe 14 moves to the other end point of an oblong hole 15 to changeover the split die 10 to the contact with the convex parts 10', 11' of the split die 11. This makes possible expanding of th width of the dies. When the gripe 14 is pulled back, the split dies assume the fitting contact of the concave and convex parts, by which the width of the dies may be reduced as before. The insertion of the dies into members and their removal therefrom are performed at a breath and with ease. In this case, the protrusions 12 and guiding grooves 13 provided to the split die 10 are so disposed as to position at the back of the mutual contact parts of the convex parts of th split dies in expanding of the die width. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S62267643-A (JP)
Title: Fatigue testing machine
Inventor: KUMAZAWA MICHIO
IPC: G01N3/36
Filed: 1986-05-16
Abstract: PURPOSE:To control so as to keep a load for working on a test piece constant, by supplying an error signal corresponding to the difference of a load signal for working the test piece and a reference signal, and an instruction signal corresponding to the sum of said error signal and the reference signal, to a servo-valve. CONSTITUTION:When a test piece 1 is attached between a load cell 2 and a frame 7, and a reference signal 16 corresponding to a test load condition being a target is generated by a reference signal generator 15, a fatigue testing machine starts to operate. An arithmetic unit 19 outputs the reference signal 16 as an instruction signal 20 to a servo-valve 9. As a result, a load works on the test piece 1 and a load signal 5 is transmitted to an error signal generator 17. In such a state, a difference between the reference signal 16 and the load signal 5 is calculated, an error signal 18 corresponding to this difference is transmitted to the arithmetic unit 19, and the arithmetic unit 19 stores this error signal 18. Subsequently, an instruction signal corresponding to the sum of the error signal and the reference signal is generated, and by this instruction signal, the servo-valve is operated.