baber/WOPTO huggingface dataset:
Patent JP-H07293602-A (JP)
Title: Two-wheel and four-wheel drive switching mechanism
Inventor: SHINADA KENICHIRO
IPC: F16D47/06
Filed: 1994-04-20
Abstract: PURPOSE:To enable a switching mechanism for a driving mode to be miniaturized by decreasing the number of part items. CONSTITUTION:A two-wheel and four-wheel drive switching mechanism is provided with a first rotational member 14 to be connected to a front wheel side driving shaft 1, a second rotational member 7 to be connected to a rear wheel side driving shaft 2 and a differential limiting mechanism 3 for limiting differential between both rotational members 14, 7. The outer peripheral parts of the front wheel side driving shaft 1 and the rear wheel side driving shaft 2 are so formed as to have the same diameter, and the inner peripheral parts capable of being axially slid and integrally rotated in relation to respective outer peripheral parts of the front wheel side and rear wheel side driving shafts 1, 2 are respectively formed on the first and second rotational members 14, 7, and a switching driving means 11 for switching the connection relationship of the front wheel side to rear wheel driving shafts 1, 2 and respective outer peripheral parts by sliding the first and second rotational members 14, 7 in the axial direction is provided.
Patent JP-S59208523-A (JP)
Title: Image forming optical system
Inventor: SHINOHARA KOUICHI
IPC: G02B13/00
Filed: 1983-05-12
Abstract: PURPOSE:To utilize effectively a luminous flux emitted from an object by providing one cylindrical lens in the vicinity of an object surface and an image forming surface, and making the luminous flux form an image at the center point of a conjugate length on a surface falling at a right angle with a bus of this cylindrical lens. CONSTITUTION:A complete symmetrical optical system constituted by using a condensing lens 3 is shown in the figures. These figures are those which have been viewed from a direction of a one-dimensional object, for instance, a light emitting array O and from a direction falling at a right angle with the light emitting array O. The lenses 3, 4 are cylindrical lenses having a bus in the direction of the array O, and its focal distance fc is set so that a luminous flux emitted from an object point is focused to the center of a conjugate length.
Patent JP-2000227193-A (JP)
Title: Connection structure for thermoplastic synthetic resin pipe
Inventor: KISHIDA SANEKI
IPC: F16L47/06
Filed: 1999-03-25
Abstract: PROBLEM TO BE SOLVED: To facilitate manufacturing and sure joining between a socket and an insert. SOLUTION: An insert 11 is provided in the end part of a hard vinyl chloride pipe 10, and in this insert 11, an insertion bulged part 11a is formed on a full periphery by secondary machining so as to be bulged along a peripheral direction to open in the inner peripheral surface of the pipe. A socket 12 is provided in the end part of the other hard vinyl chloride pipe 10, into which the insert 11 is inserted, and in the socket 12, a fitting groove part 12a opened in the inner peripheral surface of the pipe is formed on a full periphery by secondary machining so as to be bulged outside along a peripheral direction such that when the insert 11 is inserted, the insertion bulged part 11a provided in the insert 11 is fitted in the full periphery.
Patent JP-S59206649-A (JP)
Title: Engine speed controller for agricultural machine
Inventor: FUJII KAZUO
IPC: E02F9/20
Filed: 1983-05-10
Abstract: PURPOSE:To achieve safety operation by lifting a rotary section in order to turn the machine during operation then lowering the engine speed through function of a sensor thereby automatically reducing the speed. CONSTITUTION:In the agricultural work, under such state where the rotary section a is grounding while the rotary (a) is deeper than the ground level, sensor B will incline until contact with a transmission case 7 to maintain the position. Through said inclining motion, a projection 19 will rotate to pull a wire 21 thus to rotate a drive lever 20 and to gear a jaw clutch in clutch C with another jaw clutch against a spring to transmit power from PTO shaft to the input shaft thus to bring the driven state of the rotary (a). Consequently it is operated while the engine speed is being increased. When turning the machine, said section A is lifted to separate the sensor B from the ground thus to loosen the wire 21. Then the rotary (a) is stopped to drop the engine speed.
Patent JP-H03278976-A (JP)
Title: Recorder
Inventor: TAKANASHI RYOYU
IPC: G07F7/08
Filed: 1990-03-29
Abstract: PURPOSE:To facilitate an assembling operation and perform a high-quality printing by a method wherein a thermal head is pressed to one side of a case as an upper unit, and the upper unit is pressed to a lower unit in the same direction as the thermal head pressing direction. CONSTITUTION:As an upper unit 13, a case 21 is composed by connecting a front board 101 to a rear board 102 with stays 103, 104, 105. The case 21 is connected to a lower unit 12 by a support shaft 18. A coil spring SP2 is set on the support shaft 18 to elastically abut the front board 101 of the upper unit 13 against a front board 15a of the lower unit 12 for absorbing a horizontal play. Holders 111F, 111B fix the both ends of a thermal head 117. A coil spring SP1 set on a slide shaft 110 is provided between a support board 109B and the holder 111B to horizontally press the holder in the same direction as the pressing direction of the coil spring SP2 acting to the upper unit 13. In this manner, a play generated during assembling can be absorbed, and a high-quality printing can be performed.
Patent JP-S58199595-A (JP)
Inventor: YAMANA SHIYOUZOU
IPC: H05K3/46
Filed: 1982-05-14
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-S62241838-A (JP)
Inventor: PURAN FURANSHISU
IPC: C03B27/044
Filed: 1987-04-04
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-H08279239-A (JP)
Title: Magnetic disk device
Inventor: TANABE MASANORI
IPC: G11B19/02
Filed: 1995-04-07
Abstract: PURPOSE: To improve the reliability by registering defective parts as well as a place where a read error should occur due to generation of a T.A. phenomenon of a head in advance and inhibiting the read/write of data. CONSTITUTION: At the time of retrieving and registering a defective part on a magnetic disk medium 1 after assembling the magnetic disk device 5, the device 5 is put in a pressure reducing vessel 6 to reduce pressure. Then, a spindle is rotated, and all cylinders are scanned by a magneto-resistance effect type head 3 so that a data surface as to the whole medium 1 consisting of plural pieces on each cylinder is searched for a defective part by the head 3 disposed thereon, and this sector number, etc., are recorded as position information in the circumferential direction of the found defective part are recorded in a prescribed position on the medium 1. A series of operations of this device 5 is controlled by a drive controller 7. By this method, a read error caused by thermal aspect T.A. that is newly generated in the state of a gap between the head 3 and the medium, used on heights and a lowered floating amt. of the head can thus be prevented.
Patent JP-S57197878-A (JP)
Title: Photodetector
Inventor: NISHIDA KATSUHIKO
IPC: H01L31/103
Filed: 1981-05-29
Abstract: PURPOSE:To expand a responsive wave length range by a photodetector wherein a light absorbing layer such as InAs, InPSb, GaPSb or GaAsSb etc. and a window layer comprising a mixed crystal which contains Al are laminated on an InAs substrate. CONSTITUTION:A light absorbing layer 2 comprising either one of InAs, InPSb, GaPSb, GaAsSb or a mixed crystal of them and a window layer 3 consisting of AlGaAsSb, AlInAsSb, AlInPSb or AlGaPSb are formed in turn on an InAs substrate 1 through epitaxial growth. Then, impurities are diffused or ion- injected into the window layer so as to form an impurity doped layer 4 (7 shows P-N junction), thus constituting a photodetector. By so doing, it becomes possible to attain photodetectors which have sensitivity in a wide wave length range from the visible region to the infrared region.
Patent JP-S57196267-A (JP)
Title: Power supply circuit
Inventor: ABE SHIYUNICHI
IPC: G03G21/00
Filed: 1981-05-28
Abstract: PURPOSE: To control stably a power source voltage with a simple additional circuit, by using a microcomputer and controlling the input voltage of a power supply circuit in parallel with other control programs by the interruption processing.  
     CONSTITUTION: The input of AC100V is dropped to 30V by a transformer 201 and is smoothed through a full-wave rectifying bridge 202 by a capacitor 203 to turn on and off a transistor Tr204 through a Tr221 connected to an output port PC 2  of an I/O port 22 and passes through a stabilizing circuit consisting of a diode 205, an inductance 206, and a capacitor 207 to supply the stabilized output of DC24V to a clutch CL24, a motor 25, and a solenoid 26. This output is divided by resistances R 1 208 and R 2 209 and is inputted to an input port PA 2 . The RST7.5 terminal of a CPU is interrupted by the TIME-OUT signal of the I/O port to control a PC 2 , thus controlling the power source voltage stably. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S60225856-A (JP)
Title: Electrophotographic sensitive body for reversal development system
Inventor: ANAYAMA HIDEKI
IPC: G03G5/043
Filed: 1984-04-24
Abstract: PURPOSE:To improve coating performance of a photosensitive layer and to obtain a copied image prevented from fog by forming an intermediate layer made of a phenol resin between a substrate and an electrostatic charge generating layer of a photosensitive layer of a functionally separated type laminate structure formed on the substrate. CONSTITUTION:The intermediate layer made of a phenol resin between the substrate and the charge generating layer of the photosensitive layer composed of a laminate structure of the charge generating layer and the charge transfer layer formed on the substrate. When such an intermediate layer is coated with the photosensitive layer, dissolution of the intermediate layer does not occur, close contact between the photosensitive layer and the substrate is also good, and mechanical properties are good, too. A copied image obtained by using such a photosensitive body, and forming an image under high temp. and high humidity, such as a temp. of 35 deg.C and a humidity of 88% by the reversal development system can be prevented from fog.
Patent JP-S57198838-A (JP)
Title: Optical fiber temperature sensor
Inventor: YOSHINAGA AKITOSHI
IPC: G01K11/32
Filed: 1981-06-01
Abstract: PURPOSE:To obtain a sensor which is usable both in a constitution wherein a fiber is short and in a constitution wherein the fiber is bent when the long one is employed for increasing the precision of measurement, by a method wherein a change in absorption spectrum due to a change in temperature of a high-loss optical fiber is detected as a change in an optical loss. CONSTITUTION:The amount of a change in an optical loss is detected by utilizing a fact that an optical loss accompanying an absorption-spectrum-type change in temperature of an optical fiber which is turned to be of high loss by the application of radioactive rays or an optical fiber whose core is glass obtained by doping a transition metal turns 10<4> times larger than that of an ordianry optical fiber acording to a wavelength. Since a high-loss fiber 1 is usable in a bent state when it is used as a temperature sensor, it is wound round about ten times and connected with a fiber 2 for transmitting a signal, and in this state, it can be used for measuring a local temperature. Thus, a temperature sensor being excellent in precision of measurement and simple in constitution is obtained.
Patent JP-S569329-A (JP)
Title: Manufacture of carbon steel strip having excellent punchability after hot rolling
Inventor: WADA YOSHIAKI
IPC: C21D8/02
Filed: 1979-07-02
Abstract: PURPOSE:To raise the punchability of a carbon steel strip by controlling the temperatures of finish rolling and coil winding during the period of hot rolling within specific ranges in the manufacture of a hot-rolled steel strip by hot-rolling a steel or alloy steel slab for mechanical structures. CONSTITUTION:A hot-rolled steel slab is manufactured by hot-rolling a carbon steel or alloy steel for mechanical structures, containing >=0.3% C and >=0.6% Mn, where the finish rolling temperature during the hot rolling operation is controlled to a temperature range of 810-840 deg.C and also the winding temperatur of the steel strip coil is controlled to a temperature range of 580-620 deg.C. Thus, a steel strip having a structure consisting of a mixture of pearlite and ferrite and excellent punchability can be manufactured by only hot rolling without spheroidizing annealing treatment.
Patent JP-H04219402-A (JP)
Title: Scroll fluid machinery
Inventor: UCHIKAWA NAOSHI
IPC: F01C1/02
Filed: 1991-04-15
Abstract: PURPOSE:To reduce the size of circular Oldham's ring for prevention of self- revolution of revolving scroll without increasing a key load, in a scroll fluid machine. CONSTITUTION:A pair of keys 20a and a pair of keys 20b are protruded in a diametrical direction orthogonal to each other from a circular Oldham's ring 20. One pair of keys are inserted into a pair of keyways on the end plate back surface side of a revolving scroll and the other pair of keys are inserted into a pair of keyways on the frame side so that they may can slide freely.
Patent JP-H04316213-A (JP)
Title: Frequency difference detecting circuit
Inventor: IGARASHI TOSHIBUMI
IPC: H03K5/00
Filed: 1991-04-16
Abstract: PURPOSE:To detect the exact slip of a signal having frequency difference more than + or -25% to a reference frequency signal by providing a quadrant change detection circuit to divide the quadrant movement of an input signal and a quadrant detection circuit to detect a quadrant moving direction. CONSTITUTION:A quadrant change detecting circuit 6 samples the signal B1 (or B2) of a 0 deg. phase signal outputted from a PLL circuit 20 and the signal C1 (or C2) of a 90 deg. phase signal at the input rise of a reference frequency signal A(f) and successively compares the patterns of these signals with the pattern of a preceding sample. Thus, it is detected that the signal is slipped and whether the frequency difference is advanced or delayed, and rising sample signals D1 (or D2) and E1 (or E2) are outputted. When the skip of quadrant is detected, a quadrant detection circuit 7 detects whether it is skipped in an advancing direction or in a delaying direction. This detection signal and the sampled pattern are inputted to an exclusive OR circuit 8 and either advancement or delay is decided.
Patent JP-S61240628-A (JP)
Title: Manufacture of semiconductor thin film
Inventor: AIZAKI HISAAKI
IPC: H01L29/812
Filed: 1985-04-18
Abstract: PURPOSE:To realize a boron doping with good controllability and high concentration in the use of a conventional cell, by irradiating a substrate with molecular beams, which are obtained by heating B2O3 or a mixture containing B2O3, when a semiconductor thin film is formed on the substrate by a molecular-beam epitaxial method. CONSTITUTION:A boron doping can be realized within a usual heat-resisting temperature range (-1,400 deg.C) of a PBN kiln, with B2O3 serving as doping blank material. As compared with a gallium doping which has been performed as a P-type doping by silicon molecular-beam epitaxial growth so far, the boron doping has the following advantages; the doping with high concentration of 8X10<18>cm<-3> can be realized, and besides an epitaxial film of good quality having very few lattice defects is obtained. The doping amount never varies with substrate temperature. A very sharp impurity profile can be obtained merely by opening and closing a cell shutter, even during growth at low temperature under 800 deg.C.
Patent JP-S599065-A (JP)
Inventor: ERITSUKU GANGUUUA RIIN
IPC: B41J2/495
Filed: 1983-05-13
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-S63250484-A (JP)
Title: Production of trichlorosilane
Inventor: MURAKAMI MASAMI
IPC: C25D1/00
Filed: 1987-04-06
Abstract: PURPOSE:To easily produce trichlorosilane at a very low temp. close to room temp. by electrolyzing silicon tetrachloride in the presence of a supporting electrolyte, a hydrogen donor and a solvent. CONSTITUTION:A solvent contg. a dissolved supporting electrolyte is poured into an electrolytic cell, silicon tetrachloride contg. a dissolved hydrogen donor is further poured and electric current is supplied to electrolyze the silicon tetrachloride. The solvent used is a solvent inert to silicon tetrachloride and chlorosilanes such as trichlorosilane, preferably an aprotic polar solvent which dissolves the hydrogen donor and the supporting electrolyte, e.g., dimethoxyethane or acetonitrile. A quat. ammonium salt is preferably used as the supporting electrolyte. Arom. diol having two hydroxyl groups bonded directly to the arom. ring is preferably used as the hydrogen donor.
Patent JP-H02261993-A (JP)
Title: Corrugate pipe
Inventor: YASUI SATOSHI
IPC: F16L11/11
Filed: 1989-03-31
Abstract: PURPOSE:To construct a pipe having pressure withstand strength and a large flexibility by forming an outer wall from high density polyethylene and an inner wall from low density, wherein the inner wall is further coated with high density polyethylene as an innermore layer by means of melting fast process, and by giving them respective specified thicknesses, melt indeces, and densities. CONSTITUTION:A corrugate pipe has an outer wall 1 with alternate crests 13 and bottoms 12 and an inner wall 2 fusion adhered to the insides of these bottoms 12, wherein the outer wall is made of high density polyethylene having a thickness of 0.5-3.0mm, a melt index (MI) of 0.5 or less, and a density of 0.95 or more so as to give a sufficient soil pressure withstand strength as a subsoil pipe. The inner wall 2 is, on the other hand, made of flexible, low density polyethylene having a thickness of 0.3-1.0mm, an MI of 0.5 or less, and a density of 0.92 or less, and thereto high density polyethylene having a thickness of 0.01-0.1mm, an MI of 0.5 or less, and a density of 0.95 or more is fusion adhered as an innermore layer 3. Because this inner layer helps retaining the shape of the whole inner wall and also has slipperiness, a stabilized corrugate pipe is obtained.
Patent JP-H05274655-A (JP)
Title: Magnetic recording medium
IPC: G11B5/738
Filed: 1992-03-05
Abstract: PURPOSE:To provide an ultrahigh density magnetic recording medium having high reproduction output and satisfactory electromagnetic transducing characteristics such as overwriting characteristics, hardly undergoing electrification and excellent in running durability. CONSTITUTION:When a nonmagnetic layer based on nonmagnetic powder and a resin binder and a magnetic layer based on ferromagnetic powder and a resin binder are successively formed on a nonmagnetic substrate to obtain a magnetic recording medium, the magnetic layer is composed of at least an upper layer and a lower layer, the average particle diameter of the ferromagnetic powder in the lower layer is made larger than that in the upper layer and the total thickness of the magnetic layer is regulated to <=0.8mum. The nonmagnetic layer and the magnetic layer are preferably formed by a wet- on-wet coating system, ferromagnetic metal powder or ferromagnetic hexagonal ferrite powder is preferably used as the ferromagnetic powder and at least carbon black is preferably used as the nonmagnetic powder.
Patent JP-H05247572-A (JP)
Title: Pure al excellent in plating suitability and its production
Inventor: TOMA KEN
IPC: C22F1/00
Filed: 1992-03-05
Abstract: PURPOSE:To provide a pure Al material excellent in adhesive strength of plating by specifying respective contents of Sn, In, Pb, and Ga. CONSTITUTION:The purity of Al is regulated to >=99.0%, by weight, by incorporating 1-100ppm, in total, of one or more elements among Sn, In, Pb, and Ga into pure Al. The resulting pure Al is subjected, in the final heating treatment stage, to heating at 200-450 deg.C for prescribed time and then to cooling at <=10 deg.C/min cooling rate. One or more kinds among the grains of Sn, In, Pb, and Ga are formed at >=10<6>cm<-2> density in the interface between the Al matrix and the surface oxide film or in the vicinity of this interface. By this method, the grains of Sn, In, Pb, Ga are coagulated in the surface part of the pure Al, and the adhesivity of plating film can be improved.
Patent JP-S5418219-A (JP)
Title: Picture emphasis display unit
Inventor: NAITOU KENJI
IPC: H04N5/262
Filed: 1977-07-11
Abstract: PURPOSE:To secure a clear and partial display in terms of the visual sense by performing a normalization of the density for only an optional region in the designated picture in order to secure the emphasized contrast compared with other parts.
Patent JP-S57198350-A (JP)
Title: Starting system of carburetor
Inventor: FUJIWARA HIDEJI
IPC: F02M1/10
Filed: 1981-05-30
Abstract: PURPOSE:To obtain a rich starting mixture, by introducing the atmospheric air pressure  to the upper chamber in a carburetor float chamber through an atmosphere introducing passage, fetching positive pressure in a crank chamber through a positive pressure  introducing pipe, providing said positive pressure introducing pipe, providing said positive pressure introducing pipe branching from said atmosphere introducing passage and  feeding said positive pressure to a liquid level of fuel when an engine is started. CONSTITUTION:A supply pressure selector valve main unit 18 comprises an atmosphere  chamber 19 and positive pressure chamber 20, and the positive pressure chamber 20 is  equipped with a positive pressure introducing passage 24, communicated to a crank  chamber, and a selector valve unit 27. At starting, an operating rod 27A is lifted to  close a communication passage 21 and open the positive pressure introducing passage  24. In this way, an upper chamber 5A above a liquid level is communicated to the positive pressure introducing passage 24, and positive pressure is applied into the liquid  level upper chamber 5A. Accordingly, sucked fuel into an intake pipe 2, from a main  nozzle 10 and each hole 13, 14, can be increased, resulting in the supply of a rich mixture. After warming up of an engine, if the selector valve unit 27 is moved downward,  the liquid level upper chamber 5A is opened to the atmosphere.
Patent JP-2000278377-A (JP)
Title: Handset structure
Inventor: SEKIMURA MAKI
IPC: H04M1/03
Filed: 1999-03-26
Abstract: PROBLEM TO BE SOLVED: To provide a handset structure for positioning the microphone of a handset near the mouth at the time of speaking and eliminating acoustic coupling when picking up/down the handset. SOLUTION: Concerning the handset structure for an indoor base unit composed of a handset 1 having a microphone 2 and a receiver 3 and a main body 4, when the handset 1 is returned to the main body 4 when speech ends, the attaching position of the microphone 2 is located on a surface not in contact with the casing of the main body 4 so as not to form an acoustic space surrounded with the microphone 2 and receiver 3 of the handset 1, the casing of the handset 1 and the casing of the main body 4. Thus, when picking up/down the handset 1, the microphone 2 is turned toward a free space.
Patent JP-S5418154-A (JP)
Title: Concentrating device
Inventor: MATSUO EISUKE
IPC: B01D21/02
Filed: 1977-07-08
Abstract: PURPOSE: To provide the subject device wherein both floating separation and precipitation type sludge concentrating tank thereby to carry out effectively the concentration of sludge. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S5418629-A (JP)
Title: Process system for character segmentation
Inventor: SUGAWARA HIDEAKI
IPC: G06K9/34
Filed: 1977-07-13
Abstract: PURPOSE: To ensure a correct isolation between both characters in case the characters to be separated are involved each other, by extracting the continuity of the white mesh region of the character corresponding to the scanning line. 
     COPYRIGHT: (C)1979,JPO&Japio