baber/WOPTO huggingface dataset:
Patent JP-H0415611-A (JP)
Title: Photographic lens
Inventor: TANAKA TSUNEFUMI
IPC: G02B13/04
Filed: 1990-05-09
Abstract: PURPOSE:To make the back focus of a lens system long while reducing the size of the whole lens system and to obtain high optical performance by specifying the lens constitution of seven lenses in five groups on the whole. CONSTITUTION:The lens system consists of two lens groups which are a front and a rear group across a stop in order from the object side, and the front group consists of a 1st negative meniscus lens which has its convex surface on the object side and a 1st cemented lens formed by cementing a 2nd biconvex lens and a 3rd negative meniscus lens. The rear group, on the other hand, consists of a 4th negative biconcave lens, a 2nd cemented lens formed by cementing a 5th negative lens and a 6th positive lens, and a 7th positive lens and satisfies conditions shown by inequalities I - III. In the inequalities I - III, Ff and FR are the focal lengths of the front and rear groups, F the focal length of the whole system, R4 the radius of curvature of the cemented lens surface of the 1st cemented lens, and N2 and N3 the refractive indexes of the materials of the 2nd and 3rd lenses. Consequently, while the back focus of specific length is secured, various aberrations due to asymmetry are compensated excellently and the optical performance of the entire picture plane can be improved.
Patent JP-H01295041-A (JP)
Title: Fluid damper
Inventor: MITSUI JUNICHI
IPC: F16F9/46
Filed: 1988-05-18
Abstract: PURPOSE:To drastically easily adjust the vibration attenuation characteristic of a liquid damper by forming the communication passages at plural positions in the circumferential direction, having the working shaft of a piston as center and charging two fluid chambers with the electric viscous fluid. CONSTITUTION:In a liquid damper 10, communication passages 14 are formed at plural positions in the peripheral direction, setting the working shaft 15 of a piston 12 as center. A pair of electrodes 21 and 22 are installed onto the inner surface where the contiguous block-shaped insulating bodies 20 are opposed, having the communication passage interposed. Two fluid chambers 13A and 13B are charged with the electric viscous fluid which possesses the Winslow effect. The viscosity of the fluid which passes through the communication passage 14 of the piston 12 is controlled by increasing the viscosity of the electric viscous fluid, and the throttle resistance of the fluid in the communication passage 14 is adjusted. Thus, the vibration attenuation characteristic of a liquid damper can be adjusted drastically easily.
Patent JP-S5345245-A (JP)
Title: Electrostatic latent image developing apparatus
Inventor: NISHIKAWA MASAJI
IPC: G03G15/09
Filed: 1976-10-06
Abstract: PURPOSE: To subject the latent images of a low potential and in a dot shape to satisfactory developing treatment by making high the relative speed of a magnetic toner larger to an electrostatic latent image. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S61282465-A (JP)
Inventor: YOSHIMI SATORU
IPC: D04H1/60
Filed: 1985-06-01
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-2000312922-A (JP)
Title: Method of manufacturing thin-welded tube
Inventor: UEI SEISHI
IPC: B21D5/12
Filed: 1999-04-27
Abstract: PROBLEM TO BE SOLVED: To reduce roll adjusting time and reduce or control edge waving by setting a roll position and a roll caliber so as to make particular the relations between a formed shape of material tube just before the first-stage fin pass roll and formed shape of the first fin pass roll and between the formed shape of the first-stage fin pass roll and the formed shape of the next-stage fin pass roll. SOLUTION: The relations between the formed shape of the material tube just before the first-stage fin pass roll and the formed shape of the first-stage fin pass roll and between the formed shape of the first-stage fin pass roll and the formed shape of the next-stage fin pass roll are made so as to satisfy formulae I, II, III, and IV. In the formulae, c1 is 1/2 of maximum width in the formed shape of the material tube just before the first-stage fin pass roll, f1 is 1/2 of maximum width in the formed shape of the first-stage fin pass roll, f2 is 1/2 of maximum width in the formed shape of the next-stage fin pass roll, D is outside diameter of the tube, and t is wall thickness. The unit is mm for all.
Patent JP-H08312102-A (JP)
Title: Hard wall material
Inventor: ARAKI KAZUHIKO
IPC: E04F13/14
Filed: 1995-05-18
Abstract: PURPOSE: To prevent breakage on burning a material, by shaping hollow holes to have respective hexagonal forms, when forming the wall material having a plurality of hollow holes in the inside of the material chiefly made of clay or the like. CONSTITUTION: A plurality of hollow holes 5 are formed in parallel with the longitudinal direction of a wall material A, in the inside of the hard wall material A to spare the raw material and reduce the weight and also reduce the drying and burning time. In this time, the cross section of the holes is made hexagonal and the face 6 is made at the boundary line between the decoration face 1 and the lattice 5a to prevent cracks from generating at the boundary line between the decoration face and the lattice. In this way, even when the material is dried and burned rapidly, cracks are prevented and hence, the yield rate can be increased.
Patent JP-S62274702-A (JP)
Inventor: TAKAKURA SHINICHI
IPC: H03H1/02
Filed: 1986-05-23
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-H0419030-A (JP)
Title: Machine tool of tool head replacing type
Inventor: OTSUKA KAZUO
IPC: B23B39/16
Filed: 1990-05-09
Abstract: PURPOSE:To shorten the time for preparation for steps of procedure by holding a tool head by a carrier, which can travel between each processing unit and that of the stockers adjoining thereto, and fitting the processing unit with an index mechanism. CONSTITUTION:Stockers 3 are arranged in line between processing units 2, and on each stocker 3 a tool head 4 different from the tool head 6 on an elevating table 10 is placed in standby while held by a carrier 5. When processing is ended with a tool spindle 35 on the tool head 6, the elevating table 10 is raised while the tool head 6 is put in unclamped state. At this time, a tool head supporting pin of the carrier 5 is detained with a detaining hole in the tool head 6, while detention of the elevating table 10 with carrier 5 is disengaged. Then the carrier 5 in the stocker 3 is intruded into the elevating table 10, and the carrier 5 is intruded into the opposite stocker 3, and processing with the tool head 4 is carried out following a similar procedure.
Patent JP-S5821312-A (JP)
Inventor: YAMAOKA NOBUTATE
IPC: C04B35/46
Filed: 1981-07-29
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-S63285769-A (JP)
Title: Time compressing circuit
Inventor: YAMAGISHI YOICHI
IPC: G11B20/02
Filed: 1987-05-16
Abstract: PURPOSE:To automatically decide a time compression ratio with a small memory capacity, by successively changing the compression ratio to higher ones and, at the same time, reading out a memory signal as the signal of an aimed compression ratio in accordance with the time of recording sound signals. CONSTITUTION:A CPU 12 impresses compression ratio selecting signals upon a memory controlling circuit 14 and sound data are written in a memory at a compression ratio of 1/320. When the recording time exceeds five and ten seconds, the compression ratio is changed to 1/640 and 1/1280, respectively. The memory controlling circuit 14 impresses sampling clocks corresponding to the compression ratio upon an A/D converter 18 and the cut-off frequency of a pre-filter 16 is set at a band meeting a sampling theorem. The sound data written in the memory 20 are subjected to band limitation at an LPF 21 and analog conversion at a D/A converter 22 and clocks are supplied to the data from the memory controlling circuit 14. Then the data are recorded on a disk 10 after a time-compressed base band component is fetched.
Patent JP-S5453339-A (JP)
Title: Turbo refrigerating machine
Inventor: KOYASU MASAOMI
IPC: F25B1/10
Filed: 1977-10-05
Abstract: PURPOSE: To evaporate sufficient refrigerant even under a low load to be sucked into a compressor together with oil drops for collecting oil by opening a switching valve provided on a connecting pipe between the gas-phase part in a condenser and the bottom of an evaporator for a fixed time.  
     CONSTITUTION: The gas-phase part of a condenser 5 is connected with the bottom of an evaporator 1 by a connecting pipe 7 provided with an electromagnetic valve 12 on the way as a bypass. When a refirgerating load is reduced, the electromagnetic valve 12 is opened for a fixed time at the starting of a refrigerating machine or periodically, and then, high pressure vapor of refrigerant is conducted from the gas- phase part of the condenser 5 to the bottom of the evaporator 1 for boiling up refrigerant in the evaporator to bubble. Consequently, oil mist is given by evaporation as under a full load condition, and sucked into a compressor 3 to be collected by an oil collector 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S62283132-A (JP)
Title: Production of laminate for electricity
Inventor: KAMIKITA MASAKAZU
IPC: B32B15/08
Filed: 1987-05-15
Abstract: PURPOSE:To obtain copper-clad laminate for printed circuit board having improved water vapor absorption characteristics and mechanical characteristics, by laminating substrates impregnated with an unsaturated polyester resin using a specific crosslinking agent and curing. CONSTITUTION:An unsaturated polyester resin consisting of a structure shown by the formula is blended with 20-60wt% crosslinking agent obtained by mixing styrene and/or a functional derivative thereof with 5-60wt% polyfunctional hydrocarbon vinyl monomer (e.g. mainly consisting of divinylbenzene) to give an unsaturated polyester resin (having 0.1-10 poise, especially preferably 0.5-8 poise viscosity) liquid at room temperature, which is impregnated into substrates comprising cellulose fiber as a main component, the substrates are laminated, cured and a copper foil is bonded to the laminate.
Patent JP-S5823362-A (JP)
Title: Shaking actuator
Inventor: KOGURE KENJI
IPC: H02K16/00
Filed: 1981-07-30
Abstract: PURPOSE:To increase the space loading density and to improve the accuracy of positioning, by providing a plurality of shaking bodies for magnetic drive consisting of a flat permanent magnet, a magnetic substance and a coil to a fixed shaft. CONSTITUTION:Two sets of shaking bodies are constituted by coupling coil supports 14 and 14' supporting head arms 13 and 13' and flat and almost sectorial coils 15 and 15' to rotary carriages 11 and 11' and supported with bearings 12 and 12' to a fixed shaft 10 independently and shakable. The magnetic circuit consists of a flat center yoke 18 commonly used, flat upper and lower yokes 17' and 17 located opposingly to the yoke 18, flat permanent magnets 16 and 16'. Magnetic poles opposing with each other are magnetized by different poles of N and S and the magnetic poles adjacent to the moving direction of the coils 15 and 15' are located to be different poles of N and S.
Patent JP-S611260-A (JP)
Title: Noise protecting composite transformer
Inventor: KUBOTA KATSUAKI
IPC: H02M1/12
Filed: 1984-06-13
Abstract: PURPOSE:To stop both normal and common mode noises of high frequency over a wide band range by additionally using a magnetic material such as a core or a magnetic sheet having less decrease of effective magnetic permeability in high frequency. CONSTITUTION:When a high frequency common noise Nc is fed from input terminals 1, 1', magnetic fluxes phic4, phic5 generated in closed magnetic paths of cores 4, 5 are generated by windings 8, 9 in the same direction. Accordingly, the both magnetic fluxes strengthen each other to operate at large inductance for common mode noise Nc of high frequency at the primary side. Then, when the normal mode noise Nn of high frequency wave is input from the input side, magnetic fluxes generated in the closed magnetic paths of the cores 4, 5 becomes by windings 8, 9 opposite directions, and cancel each other. Thus, the windings 8, 9 and the cores 4, 5 do not affect influence to the primary side Nn for the nornal mode noise Nn.
Patent JP-S61279053-A (JP)
Title: Dry battery
Inventor: SHINODA KENICHI
IPC: H01M50/414
Filed: 1985-06-03
Abstract: PURPOSE:To smoothly transfer discharge products to a positive mix and improve discharge performance, especially high rate pulse discharge performance by using a film made of water soluble nylon as a separator placed between a positive mix and a zinc can. CONSTITUTION:A film made of water soluble nylon is used as a separator placed between a positive mix and a zinc can. Of several kinds of water soluble nylon, partially water soluble nylon is preferably as a separator for dry battery in order to give a water holding function without dissolving in the electrolyte. By using the separator made of water soluble nylon, which has good water holding ability and required mechanical strength regardless of thin thickness, discharge products can smoothly be transferred to the positive mix and discharge performance such as high rate pulse discharge performance is improved.
Patent JP-H0415429-A (JP)
Title: Perfume fragrance device for air conditioner
Inventor: GOTO HIROKI
IPC: F24F1/00
Filed: 1990-05-10
Abstract: PURPOSE:To evaporate perfume only at the time of using an air conditioner and to prevent wasteful evaporation of the perfume by providing a fragrance device which is incorporated with the operation and stop of a blower, and providing a cover to be opened or closed corresponding to a perfume frame having perfume filled in a perfume base and a cam for opening and closing the cover in the device. CONSTITUTION:When a blower 4 is operated, a motor 18, a cam 20 of a fragrance device 7 are started to be rotated in cooperation with it, a cover 14 is opened by the force of a hinge 16 with a spring, and the motor 18 is stopped when it is fully opened. In this case, since the blower 4 is started to be operated, the air in a room is sucked from a suction port 2, mixed with perfume evaporated from a perfume body 11 in which the cover 14 is opened through a filter 3, diffused in the room from an indoor diffuser 6 through a heat exchanger 5, and the room is filled with the odor of the perfume by the circulation of the air. When the blower 4 is stopped, the motor 18 is again started to be rotated, the cover 14 is pressed by the cam 20 to be closed. When the cover is completely closed, the motor 18 is stopped to stop evaporation of the perfume.
Patent JP-2000316280-A (JP)
Title: Power-supply unit
Inventor: NAGAHARA KIYOKAZU
IPC: H02M7/06
Filed: 1999-04-27
Abstract: PROBLEM TO BE SOLVED: To improve reliability of a power-supply unit by providing a detection means for monitoring the output side of a rectifier means, and a protection means for breaking or reducing the output of the rectifier means when an overvoltage is detected by the detection means. SOLUTION: An overvoltage monitor 20 is provided, a monitor input 20A of the overvoltage monitor 20 is connected to the connection middle point between the + side of a smoothing capacitor 4 and + input 10A of a DC.DC converter 10, and a monitor input 20B of an overvoltage monitor 20 is grounded for taking the output voltage of a rectifier block 3 for applying to filter capacitors 4 and 5 into the overvoltage monitor 20. An output end 20C is provided at the overvoltage monitor 20, and an off control signal is supplied to a protection operation signal input end 8B of a driving circuit 8 from the output end 20C when the overvoltage monitor 20 detects that the output voltage of the rectifier block 3 has been excessive, thus securely preventing an overvoltage from being supplied to a load.
Patent JP-S5644464-A (JP)
Title: Ignition plug of internal combustion engine
Inventor: HAMAI KIYUUGO
IPC: F02P13/00
Filed: 1979-09-19
Abstract: PURPOSE:To facilitate forming a gas introducing passage and improve the efficiency of gas introduction, by setting a check valve for closing and opening a gas passage in a plug unit of an ignition plug of an internal combustion engine. CONSTITUTION:Vaporized fuel gas is introduced from a gas passage 12a outside an ignition plug into the first annular passage 12c inside the plug, the latter passage 12c being equipped with an annular reed valve 16 as a check valve functioning in accordance with negative pressure in a combustion chamber and also being communicated with the second annular passage 12e through gas passages 12d circumferentially extending a plug unit 13 at equal intervals. The second passage 12e is communicated with a discharge cavity 20 through a gas passage 12f formed by grooves on the external circumference of a columnar ceramic 17a and the internal wall of a cylindrical ceramic 17b. Gas fed in the discharge cavity 20 is injected in a state of plasma jet flame.
Patent JP-H10299136-A (JP)
Title: Construction method for substrate panel in steel frame building
Inventor: HIRANO AKISHI
IPC: E04B2/90
Filed: 1997-04-22
Abstract: PROBLEM TO BE SOLVED: To simply and efficiently fix a substrate panel at an accurate position. SOLUTION: A substrate bar 9B connected to a horizontal structural material 1 in parallel via an arm 9A and a positioning material 9C connecting a substrate panel 10 to the fixed position of the substrate bar 9B are used for a connecting member 9 fixing the substrate panel 10 to a steel frame. The substrate bar 9B is protruded to the outdoor side from the horizontal structural material 1 and fixed in parallel with it in the carrying-in preprocess to an execution site. After the steel frame is constructed, it is mounted on the substrate bar 9B fixed to the horizontal structural material 1, the horizontal frame 10A of the substrate panel 10 is arranged at the fixed position via the positioning material 9C, and the substrate panel 10 is fixed to one or both of the positioning material 9C and substrate bar 9B.
Patent JP-H02300240-A (JP)
Title: Production of expanded polyolefin
Inventor: ASANUMA TADASHI
IPC: C08L23/00
Filed: 1989-05-16
Abstract: PURPOSE:To expand a polyolefin uniformly without the necessity for irradiation in a high dose by irradiating an olefin molding containing an alkenylsilane/olefin copolymer and a blowing agent with a radiation and expanding the molding by heating. CONSTITUTION:An alkenylsilane/olefin copolymer of an MW of 10000-1000000, obtained by copolymerizing 0.001-30mol% alkenylsilane of formula I (wherein n is 0-12; p is 1-3; and R is a 1-12C hydrocarbon group) with an olefin of formula II in the presence of a Ziegler/Natta catalyst, is melt-mixed with 1-50wt.% blowing agent (e.g. azodicarbon-amide) and molded into a polyolefin molding of any desired shape. This molding is irradiated with a radiation (e.g. gamma-rays) in a dose of several tens of rads to several Mrads, and expanded by heating at a temperature higher than the decomposition temperature of the blowing agent.
Patent JP-S5821803-A (JP)
Title: Thermo-sensitive actuator
Inventor: KAMIOKA SHIGENOBU
IPC: H01F7/02
Filed: 1981-07-31
Abstract: PURPOSE:To rapidly operate at a specified temperature by securing a fixed side magnet around a nonmagnetic guide tube and a thermo-sensitive magnetic element at one opening end of the guide tube, and movably inserting a movable side magnet along the inside of the tube. CONSTITUTION:A fixed side permanent magnet 2 is secured around a guide tube 1 whose one opening end is provided with a yoke 3, the permanent magnet 2 is surrounded by a yoke 4, the opening end of which being secured to the yoke 3. A thermo-sensitive magnetic element 5 is secured within one opening end of the guide tube 1. A movable side permanent magnet 6 is movably inserted along the hollow portion of the guide tube. Since this permanent magnet 6 is tubular the thermo-sensitive magnet element 5 can be inserted into its hollow portion.
Patent JP-S5821161-A (JP)
Title: Electromagnetic nondestructive flaw detecting method
Inventor: NAKAOKA EIICHI
IPC: G01N27/90
Filed: 1981-07-30
Abstract: PURPOSE:To prevent the decrease in sensitivity by disposing a conductive rod body along the inside wall of a circular signal coil wound plural times, placing a part thereof in proximity to the surface of a material to be inspected and rotating said rod body on the concentrical circle of a signal converting coil. CONSTITUTION:A nondestructive flaw detector is constituted of a barlike (or tublar) material 4 to be inspected having a circular section, a circular signal converting coil 1 installed concentrically with said material, and a collector 2 disposed on the inside wall of said coil. Here an impeader 3 which is a part of the  collector 2 is placed in proximity to the surface of the material 4 and the linear impeader 3 is disposed in such a way as to coincide with the axial direction of  the material 4. The collector 2 is circularly moved on the concentrically circle  of the coil 1 to detect flaws, whereby the decrease in sensitivity is prevented  and efficiency is improved.
Patent JP-H09300003-A (JP)
Title: Method for rolling hot rolled steel strip
Inventor: MINOTE TOORU
IPC: B21B1/26
Filed: 1996-05-15
Abstract: PROBLEM TO BE SOLVED: To manufacture a hot rolled steel strip of a homogeneous material at high yield by keeping the temp. of the hot rolled steel strip on the inlet side of a finishing mill, finish roll-condition and cooling rate constant in the length direction of the hot rolled steel strip. SOLUTION: A slab heated to a prescribed temp. is rough rolled with a roughing mill 1, the rough-rolled rough bar is coiled in a coil box 3 and thermally insulated. Next, by passing the rough bar which is thermally insulated in this manner through a continuous hot rolling mill 5 at constant speed, finish rolling is executed and, by passing the hot rolled steel strip to which finish rolling is executed through a cooling stand at constant speed and cooling it, the hot rolled steel strip of the homogeneous material is manufactured.
Patent JP-S63285983-A (JP)
Title: Manufacture of thin film piezoelectric element
Inventor: SHIMOYAMA KENJI
IPC: H04R31/00
Filed: 1987-05-18
Abstract: PURPOSE:To simply obtain an extremely thin piezoelectric film and to obtain a thin film piezoelectric element having high sensitivity and good retentivity by forming a piezoelectric material in a thin film state on the upper surface of a soluble filling member filled in a frame, and then forming a thin piezoelectric film on the upper surface of the frame by removing it by dissolving with a solvent. CONSTITUTION:A filling member 2 is so filled in a container 11 that the upper face of the member 2 becomes the same face level as the upper face of a frame 1. Then, a thin piezoelectric film 3 made of BaTiO3, Pb(ZrTr)O3, or PbTaO3 is formed in the same plane on the upper face of the member 2 and the upper face of the frame 1. Then, the frame 1 formed with the film 3 is dipped in a cleaning case for containing a solvent. Thus, the member 2 filled in the frame 1 is dissolved in the solvent, such as alcohol, and removed from the lower opening of the frame 1. The container 11 of the frame 1 is made vacant, and the film (having 30mum or less of thickness) is extended on the upper face of the opening of the frame 1. Thus, a thin film piezoelectric element in which the frame 1 and the film 3 are integrated is formed.