baber/WOPTO huggingface dataset:
Patent JP-S63211753-A (JP)
Title: Manufacture of photodetector
Inventor: KITAGAWA MASATOSHI
IPC: H04N5/335
Filed: 1987-02-27
Abstract: PURPOSE:To obtain a high performance photodetector at a low cost, by providing a layer, in which one or more kinds of element ions among nitrogen, oxygen and carbon are accelerated and implanted, between an amorphous silicon layer and two electrodes. CONSTITUTION:An amorphous silicon layer 12 having photoconductivity is formed on an insulating substrate 11 in a photodetector. A layer 13, in which elements such as nitrogen, oxygen and carbon are implanted, in provided on the upper part of a silicon photoconductive layer 12, and a thin insulating layer is formed. A pair of electrodes 14 and 15 are formed thereon. The photoconductive layer 12 comprises an N<-> type amorphous silicon layer, in which phosphorus element is added at a mixed mol ratio of PH3 and SiH4 of 5-50 ppm. With PH3 and SiH4 as raw material gas, the layer 12 is deposited by, e.g., 0.2-2mum by a plasma CVD method. In the implanted layer 13, the ions of nitrogen element are implanted to a thickness of 50-100 Angstrom . Since the thin implanted layer 13 such as this is provided, the implantation of minority carriers and the surface recombination can be effectively decreased. Thus the high- performance photodetector characterized by a low threshold voltage value, high optical sensitivity, excellent brightness ratio and quick optical response speed can be implemented.
Patent JP-H09235154-A (JP)
Title: Alumina ceramics and production thereof
Inventor: INUZUKA ATSUSHI
IPC: C04B35/10
Filed: 1996-03-04
Abstract: PROBLEM TO BE SOLVED: To obtain an alumina ceramics free from color mottle by compounding Al2 O3 , TiO2 , MnO2 and/or CuO, SiO2 , CaO and MgO at specific ratios and backing the mixture. SOLUTION: Alumina ceramics are produced by (1) mixing 83-97.3wt.% of Al2 O3 powder containing particles of <=1μm diameter accounting for >=80% of the Al2 O3 powder, 1-4wt.% of TiO2 powder, 1-4wt.% of MnO2 powder and/or CuO powder, 0.2-7.0wt.% of SiO2 powder, 0.25-1.0wt.% of CaO powder and 0-1wt.% of MgO pawder, (2) forming the powdery mixture and (3) baking the formed product at <1350 deg.C.
Patent JP-H10239279-A (JP)
Title: Gas chromatography mass spectrometer
Inventor: NAKAGAWA KATSUHIRO
IPC: G01N30/72
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To prevent an ion source contamination and a detector deterioration by receiving the signal of a window-setting device and starting and terminating a mass spectrum measurement by a control part at a start time and a termination time. SOLUTION: A comparison/control device 12 decides the acceptance/rejection of a primary screening. More specifically, the output signal of a mass spectrometering part 8 is compared with the signal value of the accept/reject decisions of a signal memory part 11 at the fixed time zone of an eluting time zone storage device 10 and a remeasurement signal is sent when a signal value is exceeded. The remeasurement signal is sent to a controller 3 through a circuit 13 and a remeasurement sample on a turret 4 is absorbed by a syringe 2 for remeasurement.  On the other hand, a window-setting device 15 that receives the remeasurement signal through a circuit 14 starts counting time by a timer when the remeasurement starts, sends signals on a window starting time WS and a window-ending time WE, respectively, and a control part 81 enables the mass spectrometering part 8 to start and end the measurement of a mass spectrum, thus obtaining a mass spectrum and checking the presence of a target compound from the sample.
Patent JP-H10239676-A (JP)
Title: Liquid crystal micro lens
Inventor: MASUDA SHIN
IPC: G02F1/1333
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To maintain a required lens characteristic even in a voltage non- impressing state and to control the impressed voltage to a liquid crystal cell to vary the maintained lens characteristic. SOLUTION: In a liquid crystal micro lens where a liquid crystal layer 4 is interposed between two glass substrates 1a and 1b, where hole pattern electrodes 2a and 2b having holes in areas to be lens parts are formed, and glass substrates are so arranged that hole parts of their electrodes face each other, the liquid crystal layer 4 is formed by composite materials of nematic liquid crystal and a monomer. When a prescribed voltage is impressed between hole pattern electrodes, nematic liquid crystal forming the liquid crystal layer 4 has molecules oriented along non-uniform electric fields approximately symmetrical to axes passing the centers of holes and the monomer is hardened by polymerization in this state; and thereby, liquid crystal molecules are kept oriented even when the voltage is not impressed after hardening by polymerization.
Patent JP-H03250382-A (JP)
Title: Bar code detector
Inventor: TANAKA KIYOSHI
IPC: G06K7/00
Filed: 1990-02-28
Abstract: PURPOSE:To reduce the burden of a processor and to improve the processing speed of a whole device by providing a dedicated circuit to execute the expansion processing of level change information to a memory and an end margin detecting processing. CONSTITUTION:A scanner (a) reads the image of a scanned bar code, a detecting circuit (b) detects level change status at the timing of the clock of a fixed cycle and a counter (c) counts a period until when the level change is detected. A transfer control circuit (d) DMA-transfers sequentially to a fixed memory after buffering respective counted values and instruction circuit (e) compares the buffered preceding counted value with the present counted value sequentially, outputs an end margin detecting signal when the present counted value to the preceding counted value is more than a fixed ratio and instructs a processor to decode the respective transferred counted values to bar code data. Thus, the burden of the processor is reduced and processing speed as the whole device is increased.
Patent JP-S55138866-A (JP)
Title: Semiconductor memory
Inventor: NISHIZAWA JIYUNICHI
IPC: H01L21/8242
Filed: 1979-04-14
Abstract: PURPOSE:To improve the retaining characteristics of a semiconductor memory by providing a reverse conducting type high impurity density region formed in floating state adjacent to a digit line on a main surface as one electrode of storage capacity and applying higher voltage than the floating region to the digit line. CONSTITUTION:An n<+>-type region 17 is formed underneath a low resistance polysilicon 14 forming a storage capacity, and the polysilicon 14 is grounded. An n<+>- type region 12 forms a digit line formed vertically in drawing in long distance, and the fegion 17 forms floating region at every memory cell. In this case the storage capacity CS is so formed as not so lower than the static capacity CD of the digit line. In wiring the memory, positive voltage VDD is applied to a word line 13, and a writing voltage VDD is applid also to the digit line simultaneously. When the positive voltage of the region 17 reaches substantially VDD, the wirting of the memory is completed. When the voltage is removed from the word line in this state, the positive potential at the region 17 is retained as it is.
Patent JP-S60189322-A (JP)
Title: Semiconductor circuit device
Inventor: TOYOMOTO HIDEHARU
IPC: H03K19/00
Filed: 1984-03-07
Abstract: PURPOSE:To operate stably the first circuit part by inserting a resistance between the first potential point to which the first circuit part is connected and the first potential point to which the second circuit part is connected, or between the second potential point to which the first circuit part is connected and the second potential point to which the second circuit part is connected. CONSTITUTION:When the first logical signal and the second logical signal inputted to the first MOS transistor TR9 and the second MOSTR13 are in a transition state, both the first and the second MOSTRs 9, 13 become a conductive state, and even when a through-current flows to the second potential point 14 from the first potential point 10, a potential difference is generated in the first resistance element 15, by which a potential drop of the first potential point 4 connected to the first circuit part 1 is suppressed, and also since a potential difference is generated in the second resistance element 16, a potential rise of the second potential point connected to the first circuit part 1 is suppressed. Also, even in case that a load is connected to an output line 12 and a load current flows through the output line 12, the potential drop of the first potential point connected to the first circuit 1 and the potential rise of the second potential point 5 are suppressed by the first resistance element 15 and the second resistance element 16 in the same way as above, therefore, the first circuit part 1 is operated stably.
Patent JP-H05217588-A (JP)
Title: Fuel cell control system
Inventor: TAMURA TOYOICHI
IPC: H01M8/04
Filed: 1992-01-31
Abstract: PURPOSE:To prevent the breakage of a fuel cell by the load fluctuation without using a commercial electric power. CONSTITUTION:When the increase of load is detected by a load electric current detector 19, an automatic electric current adjustor 11 reduces the frequency of a three-phase inverter 6 for receiving and supplying electric power and allows an induction motor 5 to act as a dynamo, and the rotational energy of a flywheel 4 is converted to an electric energy, and supplied to a load 3. Further, when the reduction of load is detected by the load electric current detector 19, the automatic electric current adjustor 11 increases the frequency of the three-phase inverter 6 for receiving and supplying electric power and allows the induction motor 5 to act as motor, and the electric energy supplied from a fuel cell 1 is converted into a rotational energy and stored in the flywheel 4. Further, when the load fluctuation is not detected by the load electric current detector 19, the automatic electric current adjustor 11 controls the number of revolution of the flywheel 4 according to the magnitude of the load.
Patent JP-H04282773-A (JP)
Title: Method for determining formation order of wiring pattern on printed board
Inventor: MARUYAMA HIROSHI
IPC: G06F17/50
Filed: 1991-03-12
Abstract: PURPOSE:To find out the combinations of pads and grating points capable of improving probability for forming a wiring pattern from all pads on a printed board to grid points. CONSTITUTION:A pad data extracting means 31 extracts the positional data of pads. A pad/grit point candidate pair extracting means 32 selects candidate grit points corresponding to the bad positional data. A grit point frequency detecting means 33 checks the appearance frequency of the candidate grit points selected by the means 32. A wiring pair determining means 34 determines a wiring pair in the order of small grit point appearance frequency.
Patent JP-H05218678-A (JP)
Title: Magnetic shielding device
Inventor: MATSUBA HIRONORI
IPC: H05K9/00
Filed: 1992-02-03
Abstract: PURPOSE:To provide a magnetic shielding device in which a low magnetic field space can be realized relatively easily with a low cost. CONSTITUTION:Fluxmeters 7X, 7Y for detecting magnetic fields of a direction perpendicular to a central axis are disposed on a central axis of a magnetic shield of an opening (or interior) of a superconducting cylinder 1 as the magnetic shield. X-axis coils 2a, 2b and Y-axis coils 3a, 3b are provided around the opening of the shield 1. Current sources 6X, 6Y of axis coils are connected to output terminals of the fluxmeters 7X, 7Y through feedback amplifiers 5X, 5Y. A low magnetic field space 10 is formed in the shield by so controlling a coil current that the outputs of the fluxmeters become zero.
Patent JP-S57162274-A (JP)
Title: Lead-acid battery
Inventor: ISHIZUKA NOBUHIKO
IPC: H01M50/463
Filed: 1981-03-30
Abstract: PURPOSE:To improve cycling performance by placing a separator having rib type projections which press a mat of an active material filling portion of a positive electrode, between positive and negative plates. CONSTITUTION:A positive plate 6 is formed in such a way that a lead substrate for a current collector and a synthetic resin body forming an outer frame are joined in one body to form a grid, and a lead oxide active material is filled therein, and its both surfaces are covered with mat bodies such as woven material, thereafter mat bodies are melt-bonded to above mentioned synthetic resin body to form one body. The positive plate 6 is put between negative plates 9 with a separator 8 interposed, and they are accommodated as a plate group under pressurized condition into a battery container. A rib type projection 7 is formed in the separator 8 in such a position that the projection 7 makes contact with only a place where a positive active material is held by mat bodies, except the synthetic resin body deposited on the positive plate 6.
Patent JP-S54139481-A (JP)
Title: Pressing/heating process device for semiconductor substrate
Inventor: TAKAGI MIKIO
IPC: C23C16/52
Filed: 1978-04-21
Abstract: PURPOSE:To enable the use of the capsule in the high pressure higher than the critical pressure resistance by enclosing the quartz capsule storing the semiconductor wafer with the metal high-pressure barrel with installation of the control mechanism which makes the voltage inside the barrel equal to the pressure inside the capsule to the metal barrel. CONSTITUTION:Quartz capsule 2 which stores wafer 15 and water 16 weighed to secure the necessary pressure at the process temperature is provided inside metal high-pressure barrel 1, and such barrel 1 is inserted to heating furnace 13. Then pressure detector 4 is attached to the end part of barrel 1 to measure the inner pressure, and at the same time sensor 5 is installed inside the capsule to detect the temperature inside the capsule. Thus, sensor 5 is connected to pressure controller 8 via tempeature detector 6 and arithmetic unit 7, with detector 4 connected also to controller 8. Then pipe 9 is attached to barrel 1 to be connected to pressure pump 11 via valve 10, and the switch control is given via controller 8 both to valve 10 and exhaustion valve 12 branched off from pipe 9. In this way, a balance is secured between the inner and outer voltage capsule 2.
Patent JP-S62202743-A (JP)
Title: Water-repelling treatment method of ink jet nozzle for ink jet recorder
Inventor: KATANO YASUO
IPC: B41J2/16
Filed: 1986-03-04
Abstract: PURPOSE:To obtain the excellent adhesion of a metal surface and a filmy water- repellent component and at the same time, to make the possession of the sufficient lyophobic property to ink on the surface of a nozzle hole possible, by establishing a resin layer component between the nozzle hole metal surface of a metallic ink jet nozzle and the filmy water-repellent component. CONSTITUTION:The adhesion of a metal nozzle 4 and a water-repellent component 5 is indirectly improved by providing the resin layer 6 excellent in adhesion to metal between the metal nozzle 4 and the water-repellent component 5. On the basis of the merit in which the thickness of a film can be thinned as the water-repellent component 5, fluoro system polymer of a surface-active agent type is used. Further, epoxy resin, polyamide resin, polyurethane resin, or modified resin thereof, phenol-epoxy resin, phenol-polyamide resin, etc. are used as the resin excellent in adhesion to metal.
Patent JP-S60191711-A (JP)
Title: Box-shaped angular welded bead finishing machine
Inventor: HAGA MICHIHIRO
IPC: B23C3/12
Filed: 1984-03-12
Abstract: PURPOSE:To improve working efficiency by restraining four corners of a box- shaped work at a same time and carrying-out the finishing for each angular welded bead at a same time at four corners. CONSTITUTION:A work 1 is set between a post 10 and a pressing cylinder 11, and the pressing cylinder 11 is pressurized. Two side-surfaces which cross at right angles at four corners of the box-shaped work are restrained by the sliding and revolution of a chuck 9. Each angular welded bead is cut at a same time at four corners by the revolution of a cutter 3 by a motor 4, and the work can be finished.
Patent JP-H05245002-A (JP)
Title: Male face fastener and its manufacture
Inventor: KAWAGUCHI YOHEI
IPC: A44B18/00
Filed: 1992-03-04
Abstract: PURPOSE:To increase productivity and lower a cost by forming mushroom shapes as the engaging sections of a face fastener, at the tips of semi-loops allowed to project by needle-punching. CONSTITUTION:By piling up thermoplastic resin fibers and thermally bonding fibers, or the thermoplastic resin fibers only, a web 2 is formed. On both the faces of the web 2, needle punching is applied in order, and partial fibers arranged in the face direction of the web 2 are arranged in the perpendicular direction to the web surfaces. By deepening the needle depths further under needling conditions at the time of sheet-forming on a final finish punching step, the partial fibers are allowed to project from the web surfaces, and semi- loops 3 are formed. The thermally bonding fibers are heated to be fused and the web 2 is formed into a sheet so as to have necessary strength as a base material. After that, the fibers are separated by the tip shearing of semi-loops projecting from the one-side punching surface. The tips of the separated projected fibers 3 are melted by heating, and mushroom-shaped engaging sections 4 are formed, and a male face fastener 1 is obtained.
Patent JP-S61206027-A (JP)
Title: Transparent touch key fitting indicator
Inventor: ISHITANI TSUNEHIKO
IPC: G06F3/048
Filed: 1985-03-08
Abstract: PURPOSE:To fit suitably a touch key 1 to a CRT screen 5 by indicating the direction to be corrected of the fitting position of the touch key according to the fact whether or not the position of a picture element to which the picture plane is displayed is pressured from an able-to-input area of the touch key. CONSTITUTION:To show the fitting position of a transparent touch key 1, the picture element is displayed at four corners of a CRT scope. A worker places a key 1 on a scope 5 so as to match generally, uses a test pin and pressures the position of the displayed picture element from the key 1. When the pressuring of all picture elements is completed and a picture element 51e is pressured, a CPU 10 searches a correcting indicating table stored in a memory 13 based upon the code corresponding to this, reads an arrow mark and a message to show said correcting direction and displays the indicating contents of correction on the scope 5. The worker repeats the correcting of the position of the key 1 in accordance with the displayed indication until the positioning is allowed.
Patent JP-H04284323-A (JP)
Title: Operating times counter for electric leakage breaker
Inventor: KOYAMA HIDEKI
IPC: G01R31/333
Filed: 1991-03-13
Abstract: PURPOSE:To repeatedly count the number of erroneous operations due to noise in an automatic manner by separating a breakage signal output from a control circuit of an electric leakage breaker of an object to be tested from a breakage circuit, and inputting the signal into a counter. CONSTITUTION:In the case where the number of erroneous operations due to noise of a surge voltage or the like from a main electric circuit in a real field is counted, the noise is applied to an electric leakage breaker 10 from the main electric circuit 12 in the real field, and a breakage signal is output when the magnitude exceeds a predetermined value. Namely, the breakage signal due to the erroneous operation is output from output terminals K, L of a control circuit 2, and the signal is applied to a counter 9 through a transistor 8. The counter 9 counts the number of the erroneous operations and displays it. A breakage circuit 6 cannot be operated since the breakage signal is separated from the breakage circuit 6 so that the circuit 12 is not cut off. Consequently, the number of the erroneous operations due to the noise can be repeatedly in an automatic manner. As a result, a cumbersome manual ion can be eliminated, and further, counting accuracy can be improved.
Patent JP-H01221906-A (JP)
Title: Amplifier circuit
Inventor: YAMAUCHI YOSHINORI
IPC: H03F1/48
Filed: 1988-02-29
Abstract: PURPOSE:To reduce the distortion of an output signal and to improve a gain characteristic in a high frequency area by preparing two AlGaAs/GaAs heterojunction bipolar transistors(HBT), and grounding the emitter of the HBT on one side and connecting impedance as a load, and forming the HBT on the other side in an emitter-follower type. CONSTITUTION:The base of the HBT2 is connected to the collector of the HBT1 of AlGaAs/GaAs. Also, to the collector of the HBT1, a resistor RL1, and an inductance LL1 are connected in series, and a resistor RNF is connected between the base of the HBT1 and the emitter of the HBT2. Meanwhile, the emitter of the HBT12 is grounded via a resistor RL2. In such a way, since a turn-on-voltage between the base and the emitter of the transistor can be increased, it is possible to make the insertion of a level shift diode at the emitter side of the HBT2 unnecessary, and non-linear distortion can be eliminated. Also, it is possible to obtain the high gain and wide band characteristic in the high frequency area due to the reduction of the inductance and incidental capacitance.
Patent JP-H10227110-A (JP)
Title: Stair construction
Inventor: SHIMOZONO YOSHIO
IPC: E04F11/02
Filed: 1997-02-13
Abstract: PROBLEM TO BE SOLVED: To prevent a creaky sound which occurs during the passage of a person by forming a notch for tightly fitting a tread at the rear end of the tread supporting surface of a stringer in a wooden stair having stringers for supporting both the sides of the treads and by definitively fixing the treads to the stringers with a relatively simple construction. SOLUTION: A wooden stair construction 10 comprises stringers 11 arranged at both the sides, treads 12 to be placed on the stringers, and risers 13 for connecting the upper and lower treads 12. The stringer 11 is made by laminating a plurality of plywood panels and adhering them with butt boards and decorative paper, upper part of the stringer is formed to a tread supporting surface 14, and a notch 15 is formed for tightly fitting the rear part of the tread 12 at the right angle portion at the rear. The notch 15 should have a depth suited for catching and fixing the tread 12 and be about 0.5 to 1.0 times the thickness of the tread 12. Also, rear parts at both the sides of the tread 12 should be tightly fitted to the a notch 15 in the stringer 11, and its rear end is fixed to the stringer 11.  Also, the front portion of the tread 12 should be fixed to the stringer 11 by fittings located inside at both the sides and front parts of the tread 12.
Patent JP-S54139564-A (JP)
Title: Photo branching and coupling device
Inventor: TANAKA TSUTOMU
IPC: H04B10/29
Filed: 1978-04-20
Abstract: PURPOSE:To enable even the light of higher order mode to be propagated without loss by making the numerical aperture of an optical fiber constituting the photo branching and coupling device larger than the numerical aperture of the optical fibers constituting the main transmission lines connected thereto. CONSTITUTION:This constitutes the photo branching and coupling device by securing two optical fibers formed with flat parts on the side faces by opposing said flat parts, whereby, e.g., the photo branching and coupling device 10 is so formed as to have a numerical aperture (NA) larger than NA of the optical fibers 9, 9' and a transmitting station X and recieving stations Y, Z are provided. In general, as the Na of the fiber increases, transmission band decreases but the transmission path length of the photo branching and coupling device 10 is short and therefore the transmission band of the entire part does not decrease. Hence, even when light enters the branching filter 10 or comes out from the branching filter 10, the light even of higher order mode may be propagated with less loss.