baber/WOPTO huggingface dataset:
Patent JP-H03235006-A (JP)
Title: Method and apparatus for measuring progressive linearity of moving body
Inventor: SAIDA MASAHIRO
IPC: G01B11/30
Filed: 1990-02-13
Abstract: PURPOSE:To measure the progressive linearity of a moving body with a high accuracy by detecting the polarization angle of light emitted from wavelength phase difference means and calculating a displacement in a direction orthogonal to the moving direction of the moving body on the basis of the polarization angle. CONSTITUTION:Coherent light is emitted from a laser oscillator 11. The coherent light is polarized 13 to become linear polarized light and incident on a reflecting cell 14. Then, reflected from a reflecting surface 14b, the linear polarized light progresses in a direction orthogonal to a crystal axis. At this time, since a normal light component P and an abnormal light component S are different in a refractive index, a phase difference is generated and the linear polarized light becomes elliptically polarized light. Reflected from a reflecting surface 14c, the elliptically polarized light is emitted from the cell 14 and incident on a quarter wave plate 15. When the oscillation planes of an analyzer 16 and of the linear polarized light emitted from the quarter wave plate 15 agree with each other, the maximum quantity of passing light can be obtained and, when both the planes become vertical to each other, the quantity of the passing light becomes zero. The passing light is incident on a photomultiplier 17. Thus, a photoelectrically converted output is obtained from the photomultiplier 17 in accordance with the quantity of the passing light to be inputted to an arithmetic unit 18.
Patent JP-S55126794-A (JP)
Title: Heat exchanger
Inventor: YAMAKAWA SEIGOU
IPC: F28D7/16
Filed: 1979-03-22
Abstract: PURPOSE: To prevent deterioration in heat transmitting performance of a heat exchanger and to prevent deformation of heat-transmitting tubes due to thermal stress, by providing a means for attaining uniform distribution of fluid flow between a pair of outermost heat-transmitting tube supporting members of a heat-transmitting tube supporting means provided in each stage and also between a pair of innermost heat- transmitting tube supporting members.  
     CONSTITUTION: Heat-transmitting tubes 7 are disposed concentrically between outer shroud 2 and inner shroud 3 and they are supported by heat-transmitting tube supporting members 18. Means 20 for attaining uniform distribution of fluid flow is disposed between upper and lower heat-transmitting member 18, 18 which are located near the outermost heat-transmitting tube supporting means, i.e., outer shroud 2. This means 20 is fixed at its opposite ends respectively to the upper and lower suporting members 18 and it is constituted by a tubular member 21 formed with a bellows-like expansion absorbing portion 21a which is positioned almost in contact with outer shroud 2. Similarly, means 22 for attaining uniform distribution of fluid flow is also provided between upper and lower supporting members 18, 18 located near inner shroud 3. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H04246907-A (JP)
Title: Search method for alternate frequency for on-vehicle radio receiver
Inventor: HOSOI KIYOSHI
IPC: H03J7/18
Filed: 1991-01-31
Abstract: PURPOSE:To realize the search method of the alternate frequency of an on- vehicle radio receiver, by which the number of times of the search is reduced, and the alternate frequency in a satisfactory received state can be speedily obtained. CONSTITUTION:When a receiving sensitivity detecting means 8 detects that the radio wave of a receiving station is less than a fixed level, an alternate frequency retrieving means 11 changes the frequency division ration of a PLL circuit 3 based on AF data in an RAM 12, and successively operates the search operation of a broadcasting station. At the time of the search, the alternate frequency retrieving means 11 first searches the frequency received before the search operation.
Patent JP-S60179941-A (JP)
Title: Production of magnetic recording medium
Inventor: MIZOO YOSHIAKI
IPC: G11B5/84
Filed: 1984-02-24
Abstract: PURPOSE:To obtain a magnetic recording medium which excels in traveling performance and durability with reduced noise, by forming a magnetic layer on the main surface at one side of a nonmagnetic supporter to apply the surface processing to this magnetic layer and then forming a back coat layer to the other side of said supporter to apply calender processing to the surface of the back coat layer. CONSTITUTION:A magnetic layer is formed on the main surface at one side of a nonmagnetic supporter with the surface processing applied to the surface of said magnetic layer. While a back coat agent containing pigments and a binder is applied to the other side of the nonmagnetic supporter and then dried to obtain a back coat layer. Then the calender processing is applied to the surface of the back coat layer to improve the smoothness on the surface of the back coat layer. At the same time, the back description can be suppressed to the surface of the magnetic layer. At the same time, the back coat layer is compressed to improve the apparent density and then the mechanical strength of a magnetic recording medium.
Patent JP-S61192897-A (JP)
Title: Centrifugal compressor
Inventor: IDAKA HIDEHIKO
IPC: F04D25/02
Filed: 1985-02-22
Abstract: PURPOSE:To make it easy to assemble a centrifugal compressor by fixing a shaft to a cartridge casing through a bearing, slinger, and labyrinth which are a integrated type, and assembling the shaft with the above parts into a gear case. CONSTITUTION:After a bearing 2, slinger 3, and labyrinth 4 whidch are a integrated type have been fixed to a cartridge casing 11, a shaft 5 is accommodated into the cartridge casing 11. The cartridge casing 11 is assembled into a lower gear case 1, and then an upper gear case 6 is fitted to the lower gear case 1 to fix the cartridge casing 11. Consequently, a centrifugal compressor can be easily assembled in narrow space.
Patent JP-S59162195-A (JP)
Title: Garnet having double-layer structure and its preparation
Inventor: KOBAYASHI TOSHIO
IPC: H01F41/22
Filed: 1983-03-02
Abstract: PURPOSE:To obtain a garnet thin film structure having high quality and exellent light-guide characteristics, by forming an iron garnet single crystal film on an amorphous material interposing an iron-free garnet single crystal film therebetween. CONSTITUTION:An amorphous substance 12 (e.g. SiO2, Si3N4, Al2O3, etc.) is deposited on an arbitrary substrate 11 by evaporation, and a garnet single crystal thin film 14 is formed on the lattice-like surface of the amorphous layer e.g. by graphoepitaxy method, etc. An iron-garnet layer is deposited on the obtained iron-free garnet single crystal thin film 14 e.g. by sputtering, etc., and the iron-garnet layer is heat-treated at a relatively low temperature (600- 1,200 deg.C) without melting the film to obtain the objective iron-garnet, single crystal film 15.
Patent JP-S61192417-A (JP)
Title: Manufacture of billet for double pipe
Inventor: TATSUMI TADAKUNI
IPC: B23P11/02
Filed: 1985-02-22
Abstract: PURPOSE:To secure the superior close adhesiveness between the fitting surfaces of the outer and inner pipe members by purging the air in the inside space of the outer pipe member by the N2 gas which is not harmful for the close adhesiveness, in the manufacture of a double pipe billet through the shrink fitting of a cylindrical inner pipe member into a cylindrical outer pipe member. CONSTITUTION:An outer pipe member 1 is fixedly supported in erection form onto a supporting board 6 in a cylindrical body 5, and N2 gas is supplied into the inside space S of the outer pipe member 1 from the lower edge side through a feeding hole 8 inside the supporting board, and an inner pipe member 2 is fitted from the upper edge side and shrink-fitted. A heating apparatus 7 is installed in the peripheral direction in the upper part of the cylindrical body 5, and heats the outer pipe member 1. N2 gas is supplied not only into the inside space of the outer pipe member but into the part between the cylindrical body 5 and the outer pipe member 1 from the lower part, and the N2 gas purging effect in the inside space S is improved. Though the N2 gas is charged in substitution for air into the fitting surface between the inner and outer pipe members 2 and 1, the superior close adhesiveness between the fitting surfaces of the both pipes can be secured, since N2 gas solid-solved into metal structure.
Patent JP-S59160073-A (JP)
Title: Ignition device for internal-combustion engine
Inventor: SHIBUKAWA SUETAROU
IPC: F02P15/12
Filed: 1983-03-02
Abstract: PURPOSE:To obtain a good starting property without employing an electromagnetic generator by a method wherein an electric current, supplied to an ignition coil, is supplied by controlling a position whereat conduction from the electric source of batteries is begun in accordance with the revolving number of the engine by employing a transistor. CONSTITUTION:The current, supplied to the ignition coil 9, is supplied from the electric source of batteries through the transistor 8 by controlling the conduction beginning position by a pulser 1 in accordance with the revolution number of the engine. The engine is ignited at a timing determined by a start correcting circuit 3 showing a substantially constant ignition timing from the starting to first predetermined revolution number of the engine, then, the engine is ignited at the timing determined by a spark advance circuit 4, advancing the spark angle in accordance with the revolving number of the engine from the first to the second predetermined revolving number of the engine and, thereafter, the engine is ignited at the maximum spark advance position of the output signal of the pulser 1 until the third predetermined revolving number, while the engine is ignited at the timing determined by a spark delaying circuit 5 delaying the ignition position in accordance with the revolution number when the revolution number of the engine is higher than the third predetermined revolution number of the engine. According to this method, a big spark energy may be obtained without employing the electromagnetic generator, the starting property of the engine may be improved and a sufficient output may be obtained in a high speed range.
Patent JP-H09205241-A (JP)
Title: Microwave excitation gas laser oscillator
Inventor: CHIYOU DOUKEI
IPC: H01S3/036
Filed: 1996-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a microwave excitation gas laser oscillator for easily and totally matching a plurality of discharge region center axes to discharge pipe center axes and for maintaining each discharge region at a specific interval in an oscillator which is the energy source of laser processing machine. SOLUTION: Screening plates 5a and 5b are inserted into a first waveguide path 4 and a waveguide path for forming at least two discharge regions is provided, thus easily and totally matching a plurality of discharge region center axes formed at each waveguide path to discharge pipe center axes and providing a microwave excitation gas laser oscillator for maintaining each discharge region at a specific interval.
Patent JP-H07226634-A (JP)
Title: Monolithic-integrated microwave wide band amplifier
Inventor: WARUTAA CHINMAAMAN
IPC: H03F3/193
Filed: 1995-01-30
Abstract: PURPOSE: To realize a high amplification rate with low current by connecting a high resistance load between the transistors of series connection and matching low input impedance in a feedback circuit. CONSTITUTION: High resistance R1 is connected between the drain electrode D1 of a field effect transistor Q1 and the source electrode S2 of Q2. A high frequency signal inputted from the gate electrode G1 of Q1 is amplified and is inputted to the gate electrode G2 of Q2 and is outputted from the source electrode S2. Resistance R1 forms the high resistance load of Q1, converts signal current from the drain electrode D1 of Q1 into high signal voltage, amplifies current through a path between G2 and S2 and it is led to S2 with low resistance. A feedback connection circuit R2 is provided between D1 and G1, low input impedance matching is executed and it is fitted to a wide band characteristic. Thus, the higher amplification rate is obtained with low current in a wide band.
Patent JP-H06249142-A (JP)
Title: Swash plate compressor
Inventor: JINGU NAOKI
IPC: F04B27/08
Filed: 1993-02-23
Abstract: PURPOSE:To enable low noise and long service life of a car air-conditioner swash plate compressor by installing balls rotatably around the periphery of an oscillating plate and also providing a recessed sections which guide the balls in the axial direction of a drive shaft on the inner wall of a casing which forms a crankcase. CONSTITUTION:Balls 27 are installed rotatably around the peripheral edge of an oscillating plate 21. On the other hand, a recessed groove 13 which guides the balls 27 along the axial direction of a drive shaft 14 is formed in the inner wall of a casing which forms a crankcase 12, and the balls 27 are positioned in the recessed groove 13. When the drive shaft 14 is rotated through an electromagnetic clutch 4, a swash plate 15 is also rotated. Rotation of the swash plate 15 makes oscillating movement of the oscillating plate 21 according to its slant surface. In this case, because the balls 27 are engaged slidably with the recessed groove 13, the oscillating plate 21 is slid in the axial direction only without being rotated together with the swash plate 15.
Patent JP-S63202509-A (JP)
Title: Conveying belt
Inventor: ENDO TAKUO
IPC: B65G15/34
Filed: 1987-02-16
Abstract: PURPOSE:To give flexibility while prevent pollution due to carbon black as well as deterioration with time by covering the back of the base cloth of a fabric in which a metal plated synthetic fiber group is used or of a metal plated fabric with a conductive synthetic resin, in a conveying belt for sheets of paper, and the like. CONSTITUTION:The back of the base cloth 1 of a fabric woven with synthetic fiber yarn which is plated with metal, e.g., nickel, etc. or of a metal plated fabric is covered with a synthetic resin in which a synthetic resin 2 having conductivity, e.g., a carbon black, etc. is mixed. By this structure, flexibility can be obtained without damaging or polluting an object being conveyed. Also, the conductivity of a belt can be maintained while preventing deterioration with time as well as deterioration due to fatigue.
Patent JP-S58161353-A (JP)
Title: Container for semiconductor integrated circuit
Inventor: KINOSHITA TAKASHI
IPC: H01L21/48
Filed: 1983-03-01
Abstract: PURPOSE:To execute heat treatment for preventing a whisker after plated with tin by forming a metallic layer, which contains tin and does not contain nickel, to sections except the brazing section of a metallic external lead. CONSTITUTION:A kovar external lead 5 is brazed to a ceramic base body 1 by an Ag-Cu solder material 4 through a metallized layer 2 and Ni plating 3 executed onto the layer 2. Ni is plated 7' only to the surface of the solder material 4 of the brazing section and a brazing section 5' requiring no soldering when mounting the lead 5. Sn is plated 6 onto the plating 7' and a foundation exposed of the lead 5. Accordingly, heat treatment for preventing the generation of the whisker after Sn is plated preventes the degradation of solder wetting property in case of mounting.
Patent JP-S56130427-A (JP)
Title: Heat treatment of high alloy composite cast iron roll of which outside shell base structure consists of bainite and martensite
Inventor: NAKAGAWA YOSHIHIRO
IPC: C21D9/38
Filed: 1980-03-14
Abstract: PURPOSE:To produce a composite roll having and outside shell part of hard structure consisting of martensite and bainite by heat treating only the outside shell part consisting of a high alloy material of a high alloy composite cast iron roll. CONSTITUTION:A composite roll made of a high alloy material contg. Ni, Cr, Mo, etc. for its outside shell 1, and high-quality cast iron or ductile cast iron for its core 2 is cast by a centrifugal casting method. This roll 3 is supported on revolving rollers 4, 4', and in proximity to the surface of the body part, heaters 5, 5' are disposed; at the same time, the entire part is covered with heat insulating covers 6, 6'. While the composite roll 3 is being revolved at low speeds on the rollers 4, 4', the outside shell part is heated to 300-400 deg.C, thereafter it is cooled, and further if necessary the entire part of the roll is subjected to stress relieving heat treatment. The composite roll of which the outside shell part assumes the hard structure  of martensite and bainite through the heat treatment of heating and quenching and the core is constituted of the ductile cast iron of high toughness is obtained.
Patent JP-H08226984-A (JP)
Title: Circulation warm-up device for control rod drive system and its warm-up control method
Inventor: OKAMURA HAJIME
IPC: G21C7/16
Filed: 1995-02-22
Abstract: PURPOSE: To ensure the transport flow-rate to a water source transport piping and improve maintenance and operation capability and reliability of a control rod drive system by providing a throttle valve upstream of the first orifice and providing a second orifice in a circulation piping downstream of the branch from the water source transport piping. CONSTITUTION: Coolant supplied to a supply piping 15 is partly introduced to a circulation piping 16 as circulation water. This circulation water is first controlled at a specified flowrate with a throttle valve 4. Then it is depressurized by an orifice as a pressure loss element placed upstream of a branch 21 from a water source transport piping 17, and then by an orifice 8 after the branch 21. This orifice 8 is designed taking account of the pressure loss in the piping 17 in advance and the pressure loss after the branch 21 is so set that the pressure loss in the piping 17 side during the transportation of circulating water is not excess. By this, cavitation in the throttle valve is prevented and transport flow of the circulation water is assured even taking the design error of the orifice into account.
Patent JP-H104357-A (JP)
Title: Encoder, decoder, recording medium and reproducing device for digital audio signal
Inventor: FUCHIGAMI NORIHIKO
IPC: H03M7/30
Filed: 1997-01-31
Abstract: PROBLEM TO BE SOLVED: To ensure the compatibility and to decode original data accurately in the case that a digital signal resulting from A/D converting an analog signal is divided into high and low frequency band signals and the high frequency signal is down-sampled at a frequency being a half of a sampling frequency for the A/D. conversion. SOLUTION: Digital data obtained by ADD-converting analog data at a sampling frequency of 192kHz by an A/D converter 1 are divided into a low frequency component xo(n) and a high frequency component x1(n) by using a band frequency component (96kHz) being a half of a sampling frequency of the A/D converter 1 by a quadrature mirror filter QMF analysis filter 6 and down-sampled. The high frequency component x1(n) is compressed by a reversible compression system at a compression/non-compression section 7. An allocation circuit 10 packs digital data of the and low frequency component xO(n) and the high frequency component x1(n) at a prescribed arrangement in different channels. Furthermore, the low frequency component xO(n) and the high frequency component x1(n) are separately D/A-converted and outputted.
Patent JP-S53118913-A (JP)
Title: Inductive radio wire manufacturing unit of crossing type
Inventor: SUZUKI KAKUO
IPC: H01B11/00
Filed: 1977-03-28
Abstract: PURPOSE:To enable to continuously form wires of long length without causing error of crossing, by automatically performing the work crossing and collecting an electric wire with a given crossing pitch every pair through branching the wire.
Patent JP-H05235894-A (JP)
Title: Spread spectrum modulation system and demodulation system
Inventor: IIZUKA NOBORU
IPC: H04B1/707
Filed: 1992-02-20
Abstract: PURPOSE:To suppress the deterioration in a power ratio D/O of a power of a desired wave to a power of an undesired wave by multiplying a specific complex series from a complex spread series generating means with transmission data so as to implement spread modulation. CONSTITUTION:A complex spread series generating means 2 outputs a complex spread series PN(K)=M(K).Z(K) obtained by multiplying a complex series Z(K) expressed in equation I with a spread series M(K). Then the series PN is multiplied with transmission data D(K) by a spread modulation means 1, which implements spread modulation and the data are sent through an orthogonal modulation means 3 and a power amplifier means 4 or the like to which a carrier is applied. The data are similarly subject to inverse spread processing at a receiver side and demodulation is implemented. According to the system, a signal point of a modulation wave does not pass through a zero, the phase changes by 90 deg. but not changed by 180 deg., envelope fluctuation of the modulation wave is suppressed, and out-band radiation is small even when nonlinear amplifier is employed for the means 4 and the D/O deterioration is suppressed.
Patent JP-H11226786-A (JP)
Title: Transmitting structure of ram for forging machine of press or the like
Inventor: WEN-WEI HO
IPC: B30B1/08
Filed: 1998-02-16
Abstract: PROBLEM TO BE SOLVED: To improve the transmitting structure of a ram for forging machine of a press, etc. SOLUTION: The ram 11 is arranged in the machine body 10 and connected with a transmitting structure and linked with a hydraulic system and the ram 11 is reciprocated by driving the transmitting structure and the hydraulic system. The transmitting structure is provided with an induced-driving unit 20 and connected with the ram 11 and an arm 21 so as to be freely slid. A place (A) on the arm 21 is attached pivotally to the machine body 10 and the one end (B) thereof is attached pivotally to a main driving unit 22. The distance from the pivot point (B) of the main driving unit 22 with the arm 21 to the pivot point (A) of the arm 21 with the body 10 is made to several times of the distance from the pivot point (C) of the subdriving unit 20 with the arm 21 to the pivot point (A) of the arm 21 with the body 10.  The power is saved by vertically moving the one end of the main driving unit 22 with a hydraulic cylinder 25, and simultaneously, the working efficiency and the quality of a product are improved and the durability of parts is improved.
Patent JP-H09224785-A (JP)
Title: Bed mat
Inventor: FUJIMOTO MASUKI
IPC: A47C31/10
Filed: 1996-02-21
Abstract: PROBLEM TO BE SOLVED: To obtain a comfortable using touch with air permeability and water vapor permeability by making the fabric form to include fibers composed of a thermoplastic polymer whose melting point is lower than those of any other fiber and further by coating the fabric surfaces of part of the component fibers with silicon-based resin. SOLUTION: This bed mat is a fabric form whose inside material composing of this bed mat consists of two or more kinds of fibers. This contains the fibers C composed of a thermoplastic polymer R1 whose melting point is lower than those of any other fiber. These contact points among the fibers C with each other and between the fibers C and any other fiber are partially bonded. As a thermo-plastic polymer R1, such thermoplastic polymers as polyester, copolymerized polyester and the like can be listed. The fibers C are made by using the bicomponent fibers with the thermoplastic polymer R1 at the surface side and such thermoplastic polymer whose melting point is higher than that of R1, that is being conjugated at the core side. The fibers coated with silicon based resin are what the surfaces of the bicomponent fibers C are coated with silicone-based resin.
Patent JP-S58149728-A (JP)
Inventor: MATSUMURA ISAO
IPC: A61B3/10
Filed: 1982-03-02
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。