baber/WOPTO huggingface dataset:
Patent JP-H09237431-A (JP)
Title: Objective lens device, optical pickup device utilizing the same and manufacture of objective lens
Inventor: RIYUU CHIYOUKUN
IPC: G11B7/1392
Filed: 1997-02-14
Abstract: PROBLEM TO BE SOLVED: To enable the read/write of information from a disk having a different thickness. SOLUTION: The device is equipped with an objective lens 200 having a prescribed effective diameter, provided on a light advancing path onto the surface of a disk and a light control means 100 for controlling light of an intermediate area between incident light areas at short and long distances from its axis respectively, provided on the light advancing path, and a middle part of the objective lens 200, corresponding to the incident light area at a short distance from the axis has optimum thickness, reflecting index, curvature and aspherical coefft. for both thick and thin disks. Consequently, this device is simple in construction, attaining not only a low cost but applicability to such disks different in thickness with one disk drive by lowering influence of spherical aberration on the light.
Patent JP-S53109023-A (JP)
Title: Exhaust gas clarifier for internal combustion engines
Inventor: SATOU TADAHISA
IPC: F02M25/022
Filed: 1978-03-20
Abstract: PURPOSE: To control water injection flow according to the internal pressure variation of a radiator during air suction so that mechanism may be simplified. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S52114826-A (JP)
Title: Feedback type electronic controller for a fuel injection type internal combustion engine
Inventor: AOKI KEIJI
IPC: F02D41/14
Filed: 1976-03-22
Abstract: PURPOSE:To obtain an air fuel ratio controller which can increase the change rate of fuel supply in accordance with an increase of intake air quantity, by changing the integral constant in the integral circuit in accordance with the change of intake air quantity.
Patent JP-H08228326-A (JP)
Title: Broadcasting receiver
Inventor: IRIE MICHIO
IPC: H04N5/44
Filed: 1995-02-20
Abstract: PURPOSE: To improve reception sensitivity by reducing the attenuation of a TV broadcasting signal and an FM multiplex broadcasting signal by varying the cutoff frequency of a filter corresponding to either of TV broadcasting CHs. CONSTITUTION: A CH discrimination circuit 16 discriminates whether the number of CHs of TV broadcasting being received at present is one or not, and sends out a signal to switch the cutoff frequencies of an HPF 17 and an LPF 18. In this way, the cutoff frequencies fc of the HPF 17 and the LPF 18 are set at 87.5MHz while one CH is being received, and at 93MHz while reception other than one CH is being performed. Consequently, the TV broadcasting signal on an antenna 1 is not attenuated in the HPF 17, and supplied to a TV tuner 4, while. the FM broadcasting signal is sufficiently attenuated.  In this way, since a margin of 3MHz is secured for both the TV broadcasting signal and the FM broadcasting signal, the HPF and the LPF in which passing band loss is few and sufficient attenuation quantity in a blocking band is provided can be designed when a margin 2.5-3MHz for the cutoff frequency fc is provided, which improves the reception sensitivity as a result.
Patent JP-H04247368-A (JP)
Title: Magnetic disk device
Inventor: ITO NOBUHIKO
IPC: G11B21/18
Filed: 1991-02-01
Abstract: PURPOSE:To perform the recording/reproduction of data appropriately by moving a magnetic head at speed advancing distance less than slider width in the radius direction of a magnetic disk during one revolution of the magnetic disk. CONSTITUTION:When the magnetic head(H) 2 is moved by the distance less than the width W of sliders(S) 4a, 4b during one revolution of the magnetic disk, dust attached on the disk 1 collides with the S 4b at a side where no H 2 is fitted in a core 3 when the H 2 is moved. The dust with size larger than a gap L is rejected by shock when collision occurs, and is eliminated from the recording surface of the disk 1 by an air current at high speed. The dust with size smaller than the gap L is cut by the S 4b, and it is eliminated from the recording surface via cavity formed by a terminal part opposite to the floating side of the S 4b and the disk 1. The S 4b is moved on the disk from which the dust is eliminated, therefore, no influence of dust is applied to the core 3. Thereby, the recording/reproduction of the data are performed appropriately.
Patent JP-H11148271-A (JP)
Title: Operating device for continuous window
Inventor: MATSUMOTO TAKESHI
IPC: E05F17/00
Filed: 1998-02-13
Abstract: PROBLEM TO BE SOLVED: To provide an operating device for continuous windows which can uniform the opening angle of a plurality of louvers on the way of opening or closing without damaging the outside appearance and is easy in its fitting work. SOLUTION: A lower frame is provided with a slider 5 movable along its lower side 1b in correspondence to a plurality of windows 3, and the sliders 5 are mutually connected with a connecting wire 7. The slider 5 on one end is slidingly operated with a driving wire 90 and an operation box 10. On the other hand, each louvers 2 is energized toward an opening direction by an energizing means 4 and connected to each slider 5 through a window wire 6, and the louvers 2 is severally opened and closed through the motion of the slider 5. In the case where a continuous window is opened or closed, the driving wire 9 is wound up or loosened to simultaneously move the sliders 5 for opening or closing the louvers 2 at the same time. Thus, in the case where the operation of the driving wire 9 is stopped during an opening or closing process, the opening angle of all the louvers 2 are made even.
Patent JP-H03236700-A (JP)
Title: Acoustic signal reproducing device
Inventor: INANAGA KIYOFUMI
IPC: H04S1/00
Filed: 1990-02-14
Abstract: PURPOSE:To execute stable binaural reproduction from a virtual sound source placed to an optional position by providing a sound source position setting means to set the position of the virtual sound source and controlling a transfer characteristic obtained at an arithmetic means depending on the virtual sound source position information. CONSTITUTION:A sound source position setting means 19 sends virtual sound source position information to an arithmetic means 14. The arithmetic means 14 obtains a transfer characteristic with respect to a virtual sound source set to an optional position based on the information from a signal output of a couple of signal detectors 5L, 5R receiving a reference signal for position detection sent from a reference signal source 11 and gives the information to an acoustic signal processing means 23. Then the acoustic signal processing means 23 processes left channel and right channel acoustic signals based on the information representing the transfer characteristic obtained by the arithmetic means 14 gives the resulting signal to a couple of headphones 2L, 2R. Thus, stable binaural reproduction is executed from the virtual sound source set to an optional position.
Patent JP-H04247184-A (JP)
Title: Automatic door switch
Inventor: HAYASHIDA KENICHI
IPC: E05F15/20
Filed: 1991-01-31
Abstract: PURPOSE:To prevent an error operation owing to the influence of weather by using selectively a reflected light switch and a thermal sensitive switch according to the variation of temperature. CONSTITUTION:A summer season temperature setting unit 17 and a winter season temperature setting unit 18, set threshold values T1 and T2 respectively, and they are input to the + side of a comparison amplifier circuit 19 and the - side of a comparison amplifier circuit 20. A thermistor 15 measures the outdoor temperature, and is amplified by an amplifier 16 and input to the - side of the comparison amplifier circuit 19 and the + side of the comparison amplifier circuit 20. The output of the comparison amplifier circuit 19 is input to an AND circuit 21 together with the thermal sensitive output, while the output of the comparison amplifier circuit 20 is input to an AND circuit 22 together with the reflected light output. The outputs of the AND circuits 21 and 22 are applied to the base of a transistor Q through an OR circuit 23. A relay 25 is connected to the collector of the transistor Q, and the thermal sensitive output or the reflected light output is selected.
Patent JP-2000232139-A (JP)
Title: Method and device for inspecting defect on wafer
Inventor: TAKAOKA YUJI
IPC: H01L21/66
Filed: 1999-02-09
Abstract: PROBLEM TO BE SOLVED: To accurately detect the defects of a wafer by detecting the positions and the number of defects by excluding defects which are detected by first inspections, but not detected at the same positions by second inspections, from the defects detected by the first and second inspections. SOLUTION: The positions and the number of defects of a wafer WF are detected by performing first inspections by means of a defect inspection machine 1 used for inspecting the wafer WF before the wafer WF is worked by means of a semiconductor manufacturing apparatus and stored in the memory area 5a of a memory 5. Then the positions and the number of defects of the wafer WF are detected by performing second inspections after the wafer WF is worked and stored in the memory area 5b of the memory. Then the positions and the number of defects of the wafer WF are detected by excluding the defects which are detected by the first inspections, but not detected by second inspections, from the defects stored in the memory area 5a and 5b.
Patent JP-H10227884-A (JP)
Title: Control rod assembly of fast reactor
Inventor: AKAGANE KIKUO
IPC: G21C7/10
Filed: 1997-02-17
Abstract: PROBLEM TO BE SOLVED: To prevent concentration of molten fuel in a hypothetical accident causing melting damage in fuel by providing an opening in control rod guide tubes. SOLUTION: In a control rod assembly 1, a control rod 8 is inserted inside a control rod guide tube 7, and in the control 8, neutron absorber rods 9 are bundled. On the side of the control rod guide tube 7, an opening 12 is provided, which is connected to a gap space 15 formed between wrapper tubes 16 of adjacent fuel assemblies 2. In case at the worst a core melt accident occurs, melting starts at the center of the adjacent fuel assemblies 2 and the wrapper tubes 16 melt, and the melt moves to the lower part touching the control rod guide tubes 1 and being cooled. In this time, the melt flows into the guide tubes 7 from the opening 12 passes from the guide tube lower part to an entrance nozzle 6 to be exhausted the core inlet plenum. By this, fission reaction is terminated without increase of reactivity and core anomaly event can be ended in early time.
Patent JP-S60174671-A (JP)
Title: Laser printer
Inventor: HIRATA KOUICHI
IPC: B41J2/00
Filed: 1984-02-22
Abstract: PURPOSE:To obtain a high-speed, high-quality printer of a high freedom by using a liquid crystal element in the pattern mask for forming printing figure and letters for a printer using laser as a light source. CONSTITUTION:An object 3 to be irraqdiated is put on the extended line of light path connecting a laser source 1 and a pattern mask 2. Usually, on the light path of the pattern mask 2 and the object 3 to be irradiated, a mirror 4 or prism 4' for polarizing the light path and/or an optical lens 5 for focusing are set. For the pattern mask 2, a display element such as a segment type liquid crystal element, dot type liquid crystal element, or high-resolution type liquid crystal element is used. A potential is applied from a control power source 6 in such a way as to make the liquid crystal impervious to light only in the region where laser needs not to be passed in the liquid crystal portion 2. Figures and letter patterns to be printed can be simply controlled electrically, permitting figures and letters to be smoothly selected.
Patent JP-S53116515-A (JP)
Title: Axial flow fan
Inventor: HAYASHI MASAHARU
IPC: F04D29/38
Filed: 1977-03-22
Abstract: PURPOSE: To improve the blasting efficiency of axial flow fan with at least one projected auxiliary blade toward axial direction on one or both surfaces of suction side and delivery side of fan blade. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S62191822-A (JP)
Title: Quantum well type optical modulator and its production
Inventor: WAKITA KOICHI
IPC: G02F1/313
Filed: 1986-02-18
Abstract: PURPOSE:To make efficient optical modulation at a high speed by disposing a charge type clad layer on an active layer consisting of quantum well layers and barrier layers to provide an optical waveguide function to the active layer and making light incident parallel on the quantum well structure to increase the absorption length thereof. CONSTITUTION:The active layer alternately laminated with the n-type In0.53 Ga0.47-aAlaAs(0<a<=x) clad 22, the i type In0.53Ga0.47-xAlxAs barrier layer 23 and the In0.53Ga0.47-yAlyAs quantum well layer 24 and the p-type In0.53Ga0.47-zAlzAs clad 26 and a p-type In0.53Ga047As cap 27 via a buffer layer consisting of a corrosion resistant member of p-type InP25 are superposed on an n-type InP substrate 21 and AuGeNi 28 and AuZn/Zn 29 are deposited thereon by evaporation. A resist mask 30 is formed on the metallic layer 29 and the layers 29-26 are mesa-etched by KI. Since the Eg of the quantum well layer is narrower than the clad layer, the guided light from the side face of the active layer is confined in a vertical direction and the waveguide part is formed within the same layer. The problem of ruggedness on the mesa side face is eliminated and the change of the refractive index by the impression of an electric field is larger by one digit than the conventional structure. There is no need for the long element length and the element is hardly affected by a temp. change. The deep optical modulation is, therefore, executed at a high speed.
Patent JP-S56127604-A (JP)
Title: Preparation of modified rubber
Inventor: KOUNO NAOTAKE
IPC: C08F8/34
Filed: 1980-03-12
Abstract: PURPOSE: To obtain a modified rubber useful as a coating material, etc., having improved poerational rate, and adhesive property, capable of giving a film having good properties, and prepared by cyclizing sulfonating, formalizing, halogenating and oxidizing a low-molecular rubber consisting of a specific isoprene-butadiene copolymer.  
     CONSTITUTION: A low-molecular rubber consisting of an isoprene-butadiene copolymer having weight ratio between the isoprene and butadiene of 95/5W20/80, a molecular weight of 15,000W120,000 and a combined vinyl content ≤35% is dissolved in a solvent, and cyclized in the presence of a catalyst, e.g. sulfuric acid, under heating, sulfonated with sulfur dioxide, etc. under heating, formalized with formaldehyde under heating, halogenated with chlorine or bromine under heating and oxidized with a peroxide under heating to give the aimed modified rubber. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H06252286-A (JP)
Title: Chip carrier
Inventor: NAKANISHI HIDEO
IPC: H01L23/12
Filed: 1993-02-22
Abstract: PURPOSE:To obtain a chip carrier wherein insulation between a printed wiring board and circuits of a mother board is ensured. CONSTITUTION:In a chip carrier wherein a bump 2 as an external input and output terminal is formed on the rear of a printed wiring board 1 mounting a semiconductor chip 3, an insulating layer 6 having a through hole 8 in the position of a circuit pad 5 is formed on the rear of the printed wiring board 1, and the bump 2 penetrating the through hole 8 is formed.
Patent JP-H04246136-A (JP)
Title: Method for refining high purity titanium
Inventor: YOSHIMURA YASUTOKU
IPC: C22B34/12
Filed: 1991-01-30
Abstract: PURPOSE:To improve the productivity in the refining of high purity titanium with iodide thermal decomposition method and to improve temp. Controllability in precipitated substrate. CONSTITUTION:Raw titanium 13 is charged into a reaction vessel 1 and also a titanium tube 7 is inserted as the precipitating substrate. The titanium tube 7 heated with a heater 10 from inside. Inner part of the titanium tube 7 is evacuated independently of inner part of the reacting vessel 1. The inner part of the reacting vessel 1 is heated, and by supplying titanium tetraiodide, the high purity titanium is precipitated on the outer face of the titanium tube 7.
Patent JP-H08227543-A (JP)
Title: Information deleting device and information recording device
Inventor: ISHII KOICHIRO
IPC: G11B7/126
Filed: 1995-02-21
Abstract: PURPOSE: To eliminate adverse influence such as deletion of data in a region adjacent to the region to be deleted on a medium by blinking a light beam during deleting operation and suppressing needless temperature rise on a surface of a medium. CONSTITUTION: A light source modulation signal M2 is sent to a laser head 3 through a light source driver 2. A laser beam 8 from the laser head 3 is lightened in accordance with a level of the light source modulation signal M2. In this case, when the light source modulation signal M2 is in a high level, the laser beam 8 is strongly lightened, when the light source modulation signal M2 is in a low level, the laser beam 8 is weekly lightened. When strength of the laser beam 8 is made week, temperature of a surface of a disk begins to fall, a mark A is made thin gradually. Since these states are repeated by modulating the light source modulation signal M2, the mark A is not made too thick and is not made too thin.
Patent JP-2000231512-A (JP)
Title: High speed memory copy method and copy circuit
Inventor: SHIBAZAKI KAZUISA
IPC: G06F12/06
Filed: 1999-02-09
Abstract: PROBLEM TO BE SOLVED: To shorten the copy time of a memory and to complete copy in a short time even when a processing load on a CPU is present by controlling so that the other memory of a duplex memory is changed over to write mode designation and data read from one memory are written in the other memory as they are. SOLUTION: A high speed memory copy circuit 10 is inserted between a CPU 2 and duplex memories 1a and 1b. When the CPU 2 designates a read mode for the memory 1a, a read/write mode switching circuit 11a controls the memory 1a under read mode designation as it is, and a read/write mode switch means 11b controls the memory 1b by switching the read mode designation from the CPU 2 to write mode designation. Thus, data read from the memory 1a are written in the memory 1b as they are without through the CPU 2. Therefore, the data of the memory 1a can be coped to the memory 1b at high speed.
Patent JP-S57147742-A (JP)
Title: Display device
Inventor: YAMANASHI MASAKO
IPC: G06F3/037
Filed: 1981-03-06
Abstract: PURPOSE:To shorten the operating time and to facilitate the operation of the operator, by completing the clear process of the input field by only using a light pen. CONSTITUTION:Pick-up signal is detected by an ERASEEOF input detection section 12 and fed to a position judgement section 14. Then, it detects the coordinate position on a display picture tube 10 and trasmits to an attribute character reading section 17. The attribute character reading section keeps the information sent from the position detecting section 14 in an internal resistor A and at the same time, sets the value of this A in a buffer memory access address resistor B to start the reading from a buffer memory. All portions other than designated by a light pen 11 are cleared in the corresponded intput field and when the attributed character of the head position of the next field is read out, an erase processing section 19 completes the process and each section is reset.
Patent JP-S60177979-A (JP)
Title: Method of roll pressure welding thin a1 strip on fe-ni alloy strip
Inventor: YAMAGUCHI KENJI
IPC: B23K20/04
Filed: 1984-02-21
Abstract: PURPOSE:To obtain an Al-Fe alloy composite metallic bar having stable adhesion and excellent in surface quality by superposing an Fe-Ni alloy strip and a thin Al strip and rolling and pressure welding by a pair of rolls of different circumferential speed. CONSTITUTION:A roll which is in contact with the thin Al strip 1 as a covering metal is rotated at a circumferential speed V1 lower than circumferential speed V2 of a roll in contact with the Fe-Ni alloy strip 2 as a base metal and rolling and pressure welding are performed. At this time, the difference of circumferential speed of the two rolls depends on material quality, deformation resistance, thickness of the plate etc. Consequently, relative slippage between the Fe-Ni alloy atrip and thin Al strip becomes much larger compared with the case where there is no difference in speed, and in consequence, pressure welding can be made at smaller rolling reduction compared with the case where rolls of equal speed rotation are used.
Patent JP-H08226804-A (JP)
Title: Displacement information detector and drive controller utilizing the detector
Inventor: ISHIZUKA AKIRA
IPC: G01B11/00
Filed: 1995-02-21
Abstract: PURPOSE: To realize high resolution while the possibility of clash between gratings is prevented by preparing a vibration grating at a position where an interference fringe is generated owing to the diffracted light from a phase diffraction grating. CONSTITUTION: A light flux emitted from a light source L1 is converted into a parallel light flux R through a collimater lens CL and it is directed onto a scale SC rotating relatively. The light flux R transmitting a transmissive phase grating GT1 (phase diffraction grating) on the scale SC is diffracted by the projecting and recessed parts of the grating GT1 and its wave face phase is modulated. As the transmissive light flux goes far away from the grating GT1, a light quantity lowering part is regularly generated because of diffraction phenomenon. Then, when an amplitude grating GT2 is prepared in a space where a shading pattern (interference fringe) generated by the grating GT1 exists, the transmissive light of the grating GT2 is turned into a shading signal light accompanying with the rotation of the scale SC.  The shading signal light is received by a light receiving element PD to obtain a cycle signal and the result is subjected to signal processing, thereby obtaining a displacement signal with high resolution.
Patent JP-S56129469-A (JP)
Title: Transfer system of incoming call
Inventor: NISHIMURA AKIRA
IPC: H04M3/58
Filed: 1980-03-14
Abstract: PURPOSE:To automatically connect an office line incoming call to an extension to be called without giving effect on the subscriber telephone number program independently of the scale of PBX, by transferring the office line incoming call to a desired called subscriber based on the called subscriber selection information. CONSTITUTION:The office line incoming call is received at the trunk COT, it is connected to the response controller ACE via NW, and ACE connects the PB receiver after transmitting voice response to the caller. Further, when the PB signal of the caller is received, after ACE makes voice response, the received called extension number is transmitted to the control associated device. Thus, the called line EXT is connected to COT via NW, allowing the communication between the caller at the office line and EXT.
Patent JP-H09223096-A (JP)
Title: Manager and client device
Inventor: YAMAURA ICHIRO
IPC: G06F3/12
Filed: 1996-02-20
Abstract: PROBLEM TO BE SOLVED: To receive the provision of a new function without changing the function of a client even when the function of network service is changed. SOLUTION: A managing server 12 transmits a service function format 32 corresponding to the desired service to a client 10. Based on such a function format, a function format display part 22 of the client 10 displays that service provision picture. After an operator inputs required data on this picture, a parameter corresponding to these data is sent out to the managing server 12. A service control part 30 at the managing server 12 sends the sent parameter through a server control part 36 to the server 14. Even when the function of service is changed at the server 14, the changed point is expressed in the service function format that the client 10 can interprete, and sent out to the client by the managing server 12 so that it is not necessary to add any function at the client 10.