baber/WOPTO huggingface dataset:
Patent JP-H01193809-A (JP)
Title: Zoom lens
Inventor: HORIUCHI AKINAGA
IPC: G02B15/17
Filed: 1988-01-29
Abstract: PURPOSE:To attain a high variable power ratio and to improve the optical performance throughout the variable power range by specifying the length from a point, where a luminous flux on the axis which passes first-third lens groups is converged, to the front principal point of a fourth lens group. CONSTITUTION:Five lens groups, namely, the first lens group having a positive refractive power for focusing, the second lens group which has the power varying function and has a negative refracting power, the third lens group which corrects the image surface fluctuated by power varying and has a negative refracting power, the fourth lens group which converts the luminous flux from the third lens group to an approximately diverging luminous flux and has a positive refracting power, and a fifth lens groups having the image forming function, and this lens system satisfies condition 1.05<f4/L<1.3 where L is the length from the convergence point of the luminous flux on the axis passing the first-third lens groups to the front principal point of a fourth lens group and (fi) is the focal length of an i-th lens group. Thus, a high aperture ratio and a high variable power ratio are obtained and the whole of the lens system is miniaturized, and further, harmful rays such as ghost or flare are effectively removed.
Patent JP-H07223805-A (JP)
Title: Double pipe type ozone-generator
Inventor: WAKUTA TOMOKO
IPC: C01B13/11
Filed: 1994-02-16
Abstract: PURPOSE:To obtain highly concentrated ozone by disposing an inner electrode- cooling pipe in an inner electrode to improve the cooling efficiency for the inner electrode, in a double pipe type ozone-generator coaxially having a cylindrical outer electrode and the cylindrical inner electrode. CONSTITUTION:In a double pipe type ozone-generator in which an outer electrode 1 and an inner electrode 2 are coaxially disposed through an electric discharge gap 3, an inner electrode-cooling pipe 8 is coaxially attached in the inner electrode 2. Cooling water 7 flows from one end of the inner electrode 2 into a space 10a, proceeds to places near to the inner wall of the inner electrode through plural holes 11 formed in the part of the inner electrode-cooling pipe 8 between a sealing plate 9 and the inner wall of the inner electrode 2, reaches the flowing-out end of the inner electrode 2, and subsequently flows out from plural holes 11 on the outside of the inner electrode 2 through a flowing-out side space 10b. The width of the flow passage and the flow rate of the cooling water 7 are preferably controlled to <<=3mm and <=3X10<-2>m/s, respectively, in order to raise the cooling efficiency.
Patent JP-H03225665-A (JP)
Title: Commodity managing method for automatic commodity handling system
Inventor: KOSUGE MINORU
IPC: G11B15/68
Filed: 1990-01-31
Abstract: PURPOSE:To securely return commodities into its original housing box or an housing cell after recovery even when generating a fault by providing a storage device in a control mechanism and storing information concerning the existence of the commodities. CONSTITUTION:A housing box 1 is equipped with plural cells 2 and the commodity is housed into the cell 2. A handling mechanism 3 moves and turns in respective directions, holds the commodity in the objective cell 2, sets the commodity to desired processors 4a and 4b and houses the processed commodity into the cell 2. A control mechanism 5 is equipped with an incorporated storage device 6 to store the information concerning the existence of the commodities. Further, the control mechanism 5 controls the operation of the handling mechanism 3 and controls the processing of the commodity at the processors 4a and 4b. Even when the fault is generated while moving or processing the commodity, after the recovery, the control mechanism 5 refers the information stored in the storage device 6 concerning the existence of the commodity, knows the presence/absence of commodity holding according to the presence/absence of the commodity corresponding to the mechanism 3, and recognizes necessity for returning the commodity to the cell 2. Thus, the commodity can be returned to the cell 2 or the housing box 1 without fail.
Patent JP-S54113518-A (JP)
Title: Fixing process of spherical tank stay
Inventor: TODA HISASHI
IPC: F17C13/08
Filed: 1978-02-23
Abstract: PURPOSE:To simplify the fixing process of a stay by providing moving bodies into the divided part of the stay divided above the intersecting point of a brace with the stay for fixing these divided stays temporarily, and devising to slide the upper stay kept fixed on a sphere shell to the side on the lower stay for annealing. CONSTITUTION:A stay 4' is separated above the intersecting point of the upper part of a brace 3 with a stay 4. Moving bodies 13 and 13' are provided between a stay plate 7' and a receiving plate 9' at the bottom of the stay 4', and divided stays are temporarily fixed by means of brackets 14 and 14' and a holding plate 14'' for completing the supporting work of a spherical tank 1' for a time. For annealing, each brace 3 is kept tense, and brackets and the holding palte are released to make  the plate 7' and the receiving plate 9' movable. Then, when the sphere shell 2 is annealed, it is expanded and displaced outward. After annealing, the stay 4' is retreated and backed to the initial position along with the contraction of the sphere shell 2. Brackets, the holding plate, and the receiving plate are welded and fixed as moving bodies 13 and 13' being contained inside, and brackets 14 and 14' are properly cut off for completing the work.
Patent JP-H01195183-A (JP)
Title: Control method for 4-wheel steering device used for automobile
Inventor: MOROTA KAZUYA
IPC: B62D7/15
Filed: 1988-01-29
Abstract: PURPOSE:To improve steering stability on a rough road, by judging whether a road surface is rough or not by means of a vertical acceleration sensor installed on a car body floor and increasing an amount of rear wheel steering in the same phase when the road is judged to be rough. CONSTITUTION:A control unit 9 comprises a rear wheel steering angle operation unit 91 for operating a target value of rear wheel steering angle from a differential oil pressure signal inputted from an operation amplifying unit 7 and a vehicle speed signal inputted from a vehicle speed sensor 8 and a rough road judging unit 92 for judging whether a road is rough or not from a vertical acceleration signal of a vertical acceleration sensor 16. The vertical acceleration signal is inputted to the rough road judging unit 92 through a high pass filter HPF, and when the road is judged to be rough, a signal is transmitted to the rear wheel steering operation unit 91 so as to change a relation 'differential oil pressure-rear wheel steering angle set characteristics' in the direction to increase a steering amount in the direction of same phase.
Patent JP-S57133451-A (JP)
Title: Photomask checking device
Inventor: KATOU HIROSHI
IPC: G03F1/00
Filed: 1981-02-12
Abstract: PURPOSE:To prevent the occurrence of errors, by displaying always a positive or negative for various dimensions of a mask to be checked larger or smaller than a comparison reference mask respectively to make it unnecessary that the worker discriminates the sign. CONSTITUTION:The coordinate value of a moving table 30 is set to zero through a moving table coordinate measurer 41 when a reference position set input switch 35 of a display circuit 37 for fine adjustment quantity is depressed, and this coordinate value is positive when the moving table 30 is moved to the right, and it is negative when the moving table 30 is moved to the left. When the sign of the coordinate value of the moving table 30 is negative, the error is measured with chips at the righr end; and when a reference mark image 17 of a mask 15 to be checked is moved slightly to the left and is coincident with a reference mark 13 of a reference mask 11, a display circuit 37 displays a positive because the mask 15 is larger than the reference mask 11. Similarly, when the reference mark image 17 of the mask 15 is moved to the right, the circuit 37 displays a negative because the mask 15 is smaller than the reference mask 11. When the sign of the coordinate value of the moving table 30 is positive, the relation shown in table 1 is true, and thus, the burden of the worker is reduced to prevent errors.
Patent JP-S63188492-A (JP)
Title: Tig-welding wire for 9cr-mo steel
Inventor: OGAWA TADAO
IPC: B23K35/30
Filed: 1987-01-29
Abstract: PURPOSE:To furnish a wire to obtain weld metal with the high creeping property and excellent toughness by welding 9% Cr-Mo steel by the TIG welding wire containing the specific composition and components and further, having the relation between the Mo and W amounts in the specific range. CONSTITUTION:W is added to the inside of the welding wire and besides, allowed to coexist limitedly with the relation with the Mo amount to enhance the creep and rupture strength. In other words, the titled welding wire containing the components provided in the range of, by weight %, 0.03-0.12% C, <=0.3% Si, 0.3-1.5% Mn, 8-13% Cr, 0.05-0.8% Ni, 0.3-1.6% Mo, 0.5-2.5% W, 0.03-0.30% V, 0.02-0.12% Nb and 0.01-0.08% N as the essential components and further, has the relation between the Mo and W amounts in the renge surrounded by points A, B, C and D on the diagram.
Patent JP-S59144307-A (JP)
Inventor: OOTSU TOSHIHIRO
IPC: H02B15/00
Filed: 1983-02-07
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-S62177688-A (JP)
Title: Skew quantity detecting system
Inventor: SHIBATA YOJI
IPC: G06K9/32
Filed: 1986-01-30
Abstract: PURPOSE:To eliminate the need for a detecting element except a photoelectric converting element and to eliminate the impossibility for the detecting due to the slip position dislocation by detecting the skew quantity of the slip at the time of a sub-scanning from a quantizing signal obtained by the main scanning. CONSTITUTION:The reflecting light beams from a slip 10 is image-formed through a lens 13 onto a photoelectric converting element train 32 of the prescribed length. Respective element train outputs of a train 30 are quantized by a quantizing circuit 40, inputted to a pattern memory 50 as a quantizing signal and inputted to an adding circuit 100. The circuit 100 adds '1' when the input is present, '0' when the input is absent, to the contents of an address corresponding to a memory element 110 and write them into the same address. This operation is repeated until the slip 10 is sent to a constant distance. When the slip is sent to the constant distance, the contents of the element 110 are read, and when the output is changed from '0', the number is stored into a memory circuit 120 and the address is stored into a memory circuit 170. Thereafter, each time the number except '0' is outputted, the number and address are respectively overlapped and stored to memory circuits 130 and 180. After reading is completed, longitudinal and horizontal direction difference outputs are obtained by subtracting circuits 140 and 190, both outputs are divided by a dividing circuit 150 and the skew quantity is outputted.
Patent JP-S61177403-A (JP)
Title: Servocontrol amplifier circuit for television lens
Inventor: SENDA AKIRA
IPC: G02B7/08
Filed: 1985-02-04
Abstract: PURPOSE:To reduce the size and weight of a switch by decreasing the gain of an amplifier and stopping the supply of electric power to a servocontrol motor. CONSTITUTION:The negative feedback resistor of the amplifier 2 is made parallel resistors of the on resistance of a switch 3 of the amplifier 2 for servocontrol mechanism and the resistor 2 from a resistor R2 when the switch 3 is closed in the case of stopping the electric power supply to the servocontrol motor 5 and supplying electric power to a heater. Since the on resistor of the switch 3 is approximately zero, the voltage gain of the amplifier consisting of the resistors R1, R2, the amplifier 2 and the closed switch 3 is approximately zero. More specifically, the output from the amplifier 2 is approximately zero even if a signal voltage is impressed to an input terminal 1 of a servocontrol signal in this stage. A servocontrol heater 5 does not operate even if the output signal is amplified by a power amplifier 4. Since the switch 3 is connected in parallel with the resistor R2, only the small signal current flows and therefore the constitution of the small-sized amplifier circuit is possible as well.
Patent JP-S58137363-A (JP)
Title: Horizontal deflecting circuit
Inventor: TAKAHASHI SHIGENORI
IPC: H04N3/16
Filed: 1982-02-09
Abstract: PURPOSE:To prevent danger such as a fire without any increase in cost, by stopping the operation of a horizontal output stage in case of such a fault that part of a current loop including a resonance capacitor and a deflecting coil is broken. CONSTITUTION:When a path for a deflecting current iDY is intercepted owing to the flating of the lead terminal of the resonance capacitor 11, etc., the charging current and discharging current of the resonance capacitor 11 decrease. The resultant inductance of the primary-side inductance of a flyback transformer 8 and the inductance of the deflecting coil 12 increases when the inductance of the deflecting coil 12, etc., is cut off, and consequently the charging current and discharging current of the resonance capacitor 11 decrease. Consequently, the negative voltage developed across a resistance 19 is reduced to turn on a thyristor 21. Then, the oscillation of a horizontal oscillating circuit 1 is stopped immediately after the thyristor 21 is turned on.
Patent JP-H01195953-A (JP)
Title: Constitution of multiple cylinder engine
Inventor: OKITA JUNICHI
IPC: F02F1/00
Filed: 1988-01-30
Abstract: PURPOSE:To ensure the sealing performance of individual cylinders and shorten the full length of an engine by setting two pitches between head bolts which are arranged in two trains on both the left and right intake/exhaust sides through the center line of a crankshaft. CONSTITUTION:Four cylinders, the primary to the fourth, 3a to 3d are formed in a cylinder block. The head bolts arranged in two trains on both the left and right intake/exhaust sides through the center line of a crankshaft are set to have two small and large pitches p1 and p2. Cylinders 3a to 3d are displaced on the respective sides of the larger pitch of the head bolts arranged in trains. One of intake/exhaust ports 10 and 12 is placed together with ignition plugs 14. Thus the sealing performance may be ensured and the full length of an engine be shortened.
Patent JP-H01195927-A (JP)
Title: Engine room cleaner
Inventor: FURUTA TOSHINORI
IPC: F02B77/04
Filed: 1988-01-30
Abstract: PURPOSE:To maintain clean the interior of a hood and an engine room by arranging a port for ejecting compressed air toward the inside of the hood and coupling a compressor to the ejection port. CONSTITUTION:A hood 1 is provided with a sealing member 30 facing with a frame 2, where the sealing member 30 has a hollow section 32 in the longitudinal direction. An ejection port 35 is provided as a means for ejecting compressed air from the hollow section 32 toward the inside of the hood 1. A compressor 6 is coupled, as a compressed air feeding means, to the hollow section 32. The compressor 6 is operated through rotation of an engine 4 to produce compressed air which is ejected through the ejection port 35 of the sealing member 30. Consequently, the interior of the hood and the engine room can be maintained in clean state at all times.
Patent JP-H10221952-A (JP)
Title: Developing device and electrophotographic device provided therewith
Inventor: FUKUCHI KUNIO
IPC: G03G15/08
Filed: 1997-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a developing device and an electrophotographic device provided therewith capable of preventing irregular density from being caused on a printed image without changing a developing nip amount between a photoreceptor drum and a developing sleeve even though the photoreceptor drum is eccentric. SOLUTION: When two guide rings are provided at the shaft ends of the developing sleeve 2 constituted by fitting a metallic sleeve to the outer periphery of an elastic roll 9 and the sleeve 2 is brought into contact with the photoreceptor drum 1, the guide rings are similarly brought into contact with the surface of the drum 1 out of an area where an electrostatic latent image is formed in parallel. Therefore, the developing nip amount is regulated and also stably maintained, so that the occurrence of the irregular density on the printed image is prevented.
Patent JP-S57137262-A (JP)
Title: Adhesive tape cutter
Inventor: GOTOU SHIYUUZOU
IPC: B65H35/00
Filed: 1981-02-16
Abstract: PURPOSE:To cut an adhesive tape at a desired length easily by providing a cam to adjust the screwing advance of a pinch roll and interlocking the pinch roll with a cutter. CONSTITUTION:A winding 4' of an adhesive tape 4 can be easily mounted on the periphery of a drum 3. When the tape 4 is drawn out, the second lower pinch roll 19 is rotated, and screwed to advance as winding a spring. When its top part 19 is brought in touch with a cam 24, the rotation of the pinch roll 19 is stopped, and the tape 4 cannot be drawm out any more and consequently cut at fixed length by a cutter 6. By this cutting, the cutter 6 is brought down against a spring 7 to push down an operation plate 21 round the support of a screw 21a. Then, the pinch roll 19 is released and screwed to retreat by the accumulated force of the spring. When the cam 24 is adjusted in its position, the tape can be cut at a desired length.
Patent JP-H03226042-A (JP)
Title: Transmission frequency monitor system
Inventor: KATAOKA NAOHITO
IPC: H04L7/027
Filed: 1990-01-30
Abstract: PURPOSE:To identify the normality of a transmission clock frequency with high accuracy by comparing a phase and a frequency of a reference clock with those of a clock received externally. CONSTITUTION:A phase difference voltage conversion section 6 uses a frame pulse signal outputted from a pulse signal generating section 5 for a reference phase signal in the case of phase comparison to detect a phase difference with the frame pulse signal outputted from a pulse signal generating section 4, a voltage corresponding to the phase difference is outputted and fed back to a phase synchronization oscillation section 3 and the circuit is controlled so that the frequency of the said output signal is coincident with that of the clock outputted from the transmission line clock extraction section 2 at all time. If the transmission line is broken, since the output frequency from the transmission line clock extraction section 2 is naturally indefinite, the normality of the clock frequency received from the transmission line is identified by monitoring the said output signal from the phase difference voltage conversion section 6.
Patent JP-S54113807-A (JP)
Title: Gas helium discharge device for superconductive rotary machine
Inventor: KONDOU KOU
IPC: H02K19/00
Filed: 1978-02-24
Abstract: PURPOSE: To provide a gas discharge device with a short length of the axis, by discharging a returned gas helium from the three way of inside-outside of a double cylinder and its end face, with a magnetic fluid shielding device used respectively in inner and outer circumferential area of the double rotary cylinder projecting from the rotor shaft.  
     CONSTITUTION: In a fixed casing 11, are constructed cylinder inner surfaces 11a and a cylindrical unit 14, concentrical with said inner surfaces 11a, with a double cylinder 20 protrusively provided, between the before said, from the rotary shaft end. Between peripheral surfaces 19 of the double cylinder 20 and the cylinder inner surfaces 11a, and between the cylinder perpheral surfaces and inner circumferential surfaces 18 of the double cylinder 20, are provided two ring- shape pawl blocks 21, 25. And in their end faces facing to each other,  are cross-linked a magnets 22, 26, with a magnetic fluid sealing device 23, 27 intermediately positioned in suitable points of the magnets 22, 26 and the pawl blocks 21, 25. An opening of the returned gas helium flow path is provided in the inside 18 and the outside 19 of the double cylinder 20, with an opening made as well for the gas helium flow path in the end face of the point end part of the double cylinder. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S60216316-A (JP)
Title: Optical fiber connector
Inventor: TAKAHASHI MITSUO
IPC: G02B6/38
Filed: 1985-02-05
Abstract: PURPOSE:To eliminate core deviation and to make an efficient connection by pressing and connecting the reference surface of a connection head against and to the reference surface of a sleeve side. CONSTITUTION:A square hole 12 parallel to an axis is provided to a cylindrical sleeve 11 where the connection head 1 is received and fixed, and two lower surfaces of the hole 12 is held accurately at 90 deg. and regarded as reference surfaces of connection. A couple of screw holes are provided to the upper side of the sleeve 11 on a line which divides the angle of 90 deg. that said two surfaces contain. A couple of heads 1 and 1 are received from both opening ends of a through hole 12 and their connection end surfaces are placed in abutting relation; and recessed groove parts 1d of cylindrical parts of the heads 1 are pressed with screws 14 and 14 and cylindrical surfaces of the heads 1 as reference surfaces are pressed against and fixed to reference surfaces of the holes 12. Therefore, external diameters of the cylindrical parts of the heads 1 and 1 are coincident accurately with each other and the cores of optical fibers are in the centers of the cylinders, so the centers of the cores 3 are aligned correctly to each other.
Patent JP-S60164716-A (JP)
Title: Optical beam scanner
Inventor: SATOU HIDEKI
IPC: G02B26/12
Filed: 1984-02-06
Abstract: PURPOSE:To constitute a titled scanner so that a bearing is not exposed to a rotary polyhedral mirror side, an oil drop generated in the bearing part does not contaminate the specular surface of the rotary polyhedral mirror, and lowering in reflection factor of the specular surface is not caused, by fitting and fixing an end wall of a rotor to a revolving shaft in the outside of the bearing part. CONSTITUTION:A coil member having a stator 35 serving as an immovable part, and a stator coil 34 is provided in the vicinity of a revolving shaft 2, an outer rotor 36 serving as a rotary member formed as one body with a magnet 36 is formed as one body with the revolving shaft in a coupling part 36a, and the magnet 37 is placed so as to be opposed to the stator coil 34. In this way, when a driving means of the outer rotor type is used, the height of an optical beam scanner body can be made low, and also rotation of a rotary polyhedral mirror member 1 can be stabilized. The rotor 36 is fixed to the revolving shaft 2 and formed as one body so that it is positioned at the opposite side to the rotary polyhedral mirror member 1, and the bearing members concerned 7, 8 are both covered with the rotor 36.
Patent JP-S56117014-A (JP)
Title: Sludge incineration
Inventor: NAKAZAWA YASUZOU
IPC: F23G5/46
Filed: 1980-02-22
Abstract: PURPOSE: To incinerate the sludge without using a fuel bought by money and to recover energy in the step of recovering waste heat by combining the respective steps of peptization, dehydration, incineration and waste heat recovery included in the sludge processing operation in such an order as utilizes the organic components within the sludge to be processed.  
     CONSTITUTION: As an auxiliary fuel source for an incineration of the peptized, dehydrated sludge cakes, a peptization gas produced in the peptization step is used. Accordingly, it is unnecessary to use an auxiliary fuel conventially consumed in the incineration step of the dehydrated cakes. At the same time, the calory required for the peptization step can be obtained from a part of the steam contained in the combustion exhaust gas from which the waste heat is recovered. 
     COPYRIGHT: (C)1981,JPO&Japio