baber/WOPTO huggingface dataset:
Patent IL-65849-A (IL)
Title: Electronic siren
IPC: G08B3/10
Filed: 1982-05-21
Abstract: 1. Electronic siren with at least one siren system, containing a signal generator for the production of an electrical signal consisting of at least two components of different frequency, a pressure chamber system supplied with the electrical signal for sound generation and a sound projecting horn connected to the pressure chamber system, characterised in that the electrical signal consists of at least one first sine oscillation which lies in the frequency range between 600 and 1600 Hz and at least one second sine oscillation the frequency of which is lower than that of the first sine oscillation and lies in the frequency range between 300 and 800 Hz, the signal level of the second sine oscillation being 3 to 30 dB lower than that of the first sine oscillation.
Patent JP-S63182209-A (JP)
Title: Production of granular sintered porous active carbon
Inventor: YOSHIDA MITSURU
IPC: C01B31/08
Filed: 1987-01-21
Abstract: PURPOSE:To easily produce the title active carbon causing no pulverization and having high hardness, elasticity, strength, and desired shape with low cost by activating a granular sintered porous carbonaceous body obtd. by calcining a specified granular porous body of chlorine-contg. vinyl resin in inert gas atmosphere. CONSTITUTION:Chlorine-containing vinyl resin particles having <=2mm largest edge size of the particles such as chlorinated PVC having pref. 60-71wt.% degree of chlorination, etc., are charged or scattered in a vessel having a desired shape. After installing the vessel into a heating oven, etc., the vessel is heated at a temp. higher than the softening point and below the melting point of said resin particles to melt the surface layer of the particles exerting, if necessary, vibration using a vibrator or compression, to cause spot adhesion between the resin particles, obtg. thus porous body of chlorine- contg. vinyl resin particles. Then, the porous body is heated, if necessary, at 150-300 deg.C in oxidizing atmosphere to execute insolubilizing and infusibilizing treatment, then the product is calcined at >=700 deg.C in inert atmosphere such as N2, etc., and obtd. granular sintered carbonaceous porous body is activated with activating gas such as steam, CO2, O2, etc., to cause corrosion of the surface of carbonized product by the oxidizing reaction of the surface of carbon.
Patent JP-H03213386-A (JP)
Title: Printing method and apparatus
Inventor: MINAMI YOSHITO
IPC: B41L13/04
Filed: 1990-01-18
Abstract: PURPOSE:To perform sharp printing by a small-sized inexpensive apparatus and to certainly deliver paper without generating paper jamming by making the printing speed in the region proximate to the end edge of printing paper on the downstream side thereof along the moving direction of the printing paper lower than the printing speed in the region of the upstream side. CONSTITUTION:After thermal screen plate base paper is mounted on a plate cylinder 3, a paper feed roller 20 is operated to start printing operation. Printing is effected in the first region A1 on the upstream side of the downstream side edge of the first printing paper 104 at the first printing speed as it is at the starting time of rotation and printing is effected in the second region A2 on the upstream side of the first region A1 at a second printing speed faster than the first printing speed. The third region A3 further reaching the end edge on the upstream side from the second region A2 is printed at a third printing speed faster than the second printing speed and this third printing speed is kept until the completion of printing. The length dimension in the transfer direction of each of the first and second regions A1, A2 is set to 1/6-1/3 of the total length in the transfer direction of the printing paper 104 and, further, the length dimension in the transfer direction of the third region A3 is set to 1/3-2/3 of the total length in the transfer direction.
Patent JP-H0284725-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: OTANI SOICHIRO
IPC: H01L21/28
Filed: 1988-01-20
Abstract: PURPOSE:To prevent a passivation film from exfoliating from a wiring surface by the effect of electrodes coated with a noble metal layer, and improve the reliability and the yield of a semiconductor device by interposing a layer composed of metal easy to be oxidized, between the noble metal layer and the passivation film. CONSTITUTION:A passivation film 14 is formed on electrodes 3-5 or wiring on which a noble metal layer is formed. In this semiconductor device, a layer 13 composed of metal easy to be oxidized is interposed between the above noble metal layer and passivation film 14. For example, after an N-type GaAs semiconductor layer 2 is formed on a GaAs semiinsulative substrate 1, and an ohmic metal layer 11 of AuGe is patterned, a gate metal layer 12 like Ti/Pt/ Au turning to a Shottky barrier layer is formed. Next, after a metal layer 13 like Ti easy to be oxidized is formed, the gate metal layer 12 and the metal layer 13 are simultaneously patterned, and a source electrode 3, a drain electrode 4 and a gate electrode 5 are formed. After that, the passivation film 14 is formed, and the metal layer 13 on the upper surface of electrodes is eliminated.
Patent JP-H08205394-A (JP)
Title: Power supplying equipment
Inventor: MIYAMOTO YOSHIO
IPC: H02J1/00
Filed: 1995-01-26
Abstract: PURPOSE: To enable power supply from an AC adaptor or battery by providing terminals capable of connecting the battery in the interior of the molded case of the AC adaptor, using the molded cases as one for the battery, and providing a detachable connecting mechanism between it and a cable with a DC plug. CONSTITUTION: A cable 2 with a DC plug is composed of a DC plug 21, a cable 22, and a connecting terminal section 23, and is connected and fixed also to a molded case 1 in the connecting terminal section 23. To the lower case 12 of the molded case 1, terminals 31, 32 for the connection with the connecting terminal section 23 of the cable 2 with a DC plug and terminals 41, 42,...46 for the connection with a battery are fitted. Terminals 31 and 46 and terminals 22 and 41 are connected with cables 51, 52 respectively, and terminals 31 and 24, and 32 and 25 are at the terminal connecting section 23 respectively. Consequently, it becomes possible to use a molded case for an AC adaptor also for a battery in common, and to supply the power of the AC adaptor or battery to the DC plug 21.
Patent JP-S58128417-A (JP)
Title: Combustion chamber structure of engine
Inventor: MATSUNO ISAO
IPC: F02F1/24
Filed: 1982-01-25
Abstract: PURPOSE:To improve the combustion efficiency and to increase the amount of EGR by providing a squish effect in the latter half of a compression stroke to ignite mixture at a pair of ignition plugs and by sucking mixture while horizontally swirled in a suction stroke. CONSTITUTION:A bathtab-like combustion chamber 5 is formed in a cylinder head 2 which is opposite to a piston 4 inside a cylinder 3. The combustion chamber 5 has a horizontal face 5a in the direction of a crankshaft at the uppermost center part, said face having a certain width, a vertical face 5b rising at one side of the horizontal face 5a, another horizontal face 5c to which a land part 4a of a piston at a top dead center comes close, and an inclined face 5d at the opposite side of the horizontal face 5a. On the other hand, the piston 4 has, on the top part 4a, a projection 4b which has a triangular section and comes close to the side of said inclined face 5d when the piston reaches a top dead center. In the combustion chamber 5, a pair of ignition plugs 11 and 12, inclined downward, are mounted at the upper parts of the vertical face 5b and the inclined face 5d at a distance of approximately 0.3-0.7 times of a bore diameter.
Patent JP-H07222443-A (JP)
Title: Dc-dc converter
Inventor: ITO YOSHIHIRO
IPC: H02M3/338
Filed: 1994-02-01
Abstract: PURPOSE:To provide a DC-DC converter which can be miniaturized so as to be suitable for being mounted on a vehicle, whose output current capacity is ensured sufficiently and in which a voltage is converted with high efficiency. CONSTITUTION:The DC-DC converter is provided with a transformer 13 having a first winding 13a and a second winding 13b, which are connected at one end to an input terminal 12a connected to a DC power supply 11. The windings 13a, 13b are connected respectively to another input terminal 12b via transistors 14a, 14b. Outputs from the windings 13a, 13b are taken out via diodes 15a, 15b, they are supplied to an output terminal 17a via a choke coil 16, and a load 18 together with a smoothing capacitor 20 is connected across output terminals 17a, 17b. The first and second transistors 14a, 14b are not turned on simultaneously but are controlled so as to be turned on and off alternately by a control circuit 21, and they are fixed to an output voltage value corresponding to their duty ratio.
Patent JP-H10209117-A (JP)
Title: Flattening method by dry etching
Inventor: KAWASE TORU
IPC: H01L21/302
Filed: 1997-01-24
Abstract: PROBLEM TO BE SOLVED: To flatten the surface step and the abnormal projection of several μm-order of a chemical vapor phase epitaxy film, amorphous silicon, for example. SOLUTION: Emission spectrum intensity in etching is monitored and the etching rates of an amorphous silicon thin film 2 and resist are changed at the change point. Namely, the projecting and recessing parts 4 of about 5000Å are formed on the surface when the thin film 2 is formed on the substrate 1, and the abnormal projection 3 (about 1-5μm) also occurs. A photoresist film 5 is applied on the surface. (a) A selection ratio is set to be about '2' until the projecting and recessing parts 4 appear from etching start so as to execute etching. (b) When etching advances and the height of the abnormal projection 3 becomes almost equal to that of the projection and recessing parts 4, the selection ratio is set to be '1'. Etching advances and the projecting and recessing parts 4 and the abnormal projection 3 are flattened.  Over-etching is executed to the chain line of one point in (c).
Patent JP-H06224110-A (JP)
Title: Device and method for semiconductor exposure
Inventor: FUKITA MAKIO
IPC: H01L21/027
Filed: 1993-01-26
Abstract: PURPOSE:To provide the device and method for semiconductor exposure with which a highly precise alignment can be accomplished when an exposing operation is conducted using a charged particle beam of poor resist permeability such as an ion beam and the like. CONSTITUTION:The first alignment mark Mw is provided on a substrate 13, and the second alignment mark Ms is provided on a shifting stand 11. The positional relation between a mark detection system 7, which detects the position of the first alignment mark Mw and the second alignment mark Ms and the above-mentioned shifting stand 11 for an exposing beam or a charged particle beam, and the positional relation between the shifting stand 11 and the pattern on the substrate 13 are computed. From the computed two positional relations, the positional relation between the exposing beam or the charged particle beam and the pattern on the substrate 13 is computed. The shifting stand 11 is controlled by a treatment system in such a manner that the pattern to be exposed ands the pattern on the substrate 13 can be aligned.
Patent JP-S59136692-A (JP)
Inventor: MURATA RIYOUICHI
IPC: G21D3/12
Filed: 1983-01-26
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-S62171289-A (JP)
Title: Vtr reproducing device
Inventor: IWAIBANA KUNIO
IPC: H04N5/937
Filed: 1986-01-23
Abstract: PURPOSE:To eliminate crossing between tracks in the fast reproduction mode by using a DTF head moving a head in the bredthwise direction of a track so as to trace the track and increasing the tape winding angle more than 180 deg. in response to the fast reproducing speed. CONSTITUTION:A tape 4 is wound on a cylinder 1 and a head bar 2 having heads 11, 21 at both ends is driven in the cylinder 1. Although the winding angle of the tape 4 is nearly 180 deg., the winding angle is widened by an angle alpha deg.at the fast reproducing mode. The output of the heads 11, 21 is a reproduced video signal by demodulation circuits 13, 23 via preamplifiers 12, 22. The reproduced video signal is digitally converted by A/D converters 14, 24 respectively and stored in field memories 15, 25. The wire/read to the field memories 15, 25 is controlled by an address controller 30. The output of an A head 11 and the output of a B head 21 are written in the field memories 15, 25 respectively by time compression and the fluctuation of time base is prevented by reading alternately the data of the A head 11 and the B head 21 at a specified clock.
Patent JP-H11209133-A (JP)
Title: Transparent silica glass body and its production
Inventor: MORINAGA KENJI
IPC: C30B15/10
Filed: 1998-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a silica glass formed product of a large size with excellent transparency, especially a transparent silica glass crucible suitable to be used to take-up a semiconductor silicon single crystal of a large diameter, and to provide its producing method. SOLUTION: The transparent silica glass body is produced by calcining a compacted body of a silica powder having <=10 μm max. particle size and <=1 μm average particle size at a temp. between >=140 deg.C and the temp. lower than the melting point of silica, in vacuum. The transparent silica glass body 4 having a multilayer structure is produced by laminating silica glass layers above described and forming an intermediate layer 3 comprising oxides, carbides and/or nitrides having higher melting point than that of the silica between the glass layers.
Patent JP-S61180737-A (JP)
Inventor: JIYAN HERUMEN HENDORIKU MEURUS
IPC: C07C45/29
Filed: 1986-01-23
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S62170032-A (JP)
Title: Controller for optical information reproducing device
Inventor: WATANABE KATSUYA
IPC: G11B7/09
Filed: 1986-01-22
Abstract: PURPOSE:To decrease the drift of a signal processing circuit for accurate control and to use only one large capacity power supply by adopting bipolar power supply constitution basing on a zero potential for the signal processing circuit. CONSTITUTION:A voltage Vcc extracted from a power supply 15 capable of outputting a large current is converted into a voltage -Vcc by a DC/DC converter 16 and bipolar voltages Vcc, -Vcc are fed to preamplifiers 9a, 9b, a differential amplifier 10 and a phase compensation circuit 11. Thus, a detection signal from a photodetector 8 and a track deviation signal (reference level of control signal) from the amplifier 10 are detected basing on the zero potential. Thus, the effect due to the fluctuation of a power voltage is decreased.
Patent JP-S62169363-A (JP)
Title: Solid-state image pickup device
Inventor: MITO TADAHIRO
IPC: H04N5/335
Filed: 1986-01-21
Abstract: PURPOSE:To make it possible to obtain an solid state image pickup element characterized by simple design and a high yield rate, by providing a region, whose concentration is higher than that of a substrate and conductivity is the same as that of the substrate at the channel part of a vertical register and the channel part of a horizontal register, which is in contact with the vertical register, thereby omitting the necessity for narrowing the channel part of the horizontal register, which is in contact with the vertical register. CONSTITUTION:At the surface of a vertical register and the surface of a part of a horizontal register, which is in contact with the vertical register, a P-type region 5, whose concentration is higher than that of a substrate, is provided. Owing to the high concentration of P-type region 5, the capacitance per unit area of the vertical register is increased. Therefore, the width of a channel can be made narrow in comparison with a conventional example. At the surface of a channel region where the vertical register is contacted with the horizontal register, a high concentration P-type region is present. Therefore, a potential well 7 of the horizontal register can be made sufficiently shallow without narrowing said part. Thus charge transfer to the horizontal register from the vertical register becomes smooth, and the charge does not remain even in transfer to an output circuit from the horizontal register.
Patent JP-S5397473-A (JP)
Title: Detecting system for number of revolution
Inventor: BABA MITSURU
IPC: G01P3/44
Filed: 1977-02-04
Abstract: PURPOSE: To perform highly accurate detection without affection of temperature and time drift with less number of parts by generating saw tooth waves by one of the optical detection signals of plural sets of mutually shifted pattern pairs and sampleholding by the other. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H01190260-A (JP)
Title: Switching power supply
Inventor: USUKI SHIGERU
IPC: H02M3/155
Filed: 1988-01-21
Abstract: PURPOSE:To shorten the storage time and the like of an apparatus by applying a reverse bias according to the collector current of a main transistor, when a signal from a control circuit changes to OFF and said main transistor shifts from ON to OFF. CONSTITUTION:A switching power supply is composed of an input filter circuit 1, a main switching circuit 2, an output filter circuit 3, an auxiliary power circuit 4 furnished with voltage-stabilizing means, a drive circuit 5, and a control circuit 20. Said control circuit 20 is formed of an oscillator circuit 6, a triangular wave generator circuit 7, a reference voltage generator circuit 8, an error amplifier circuit 9, and a comparator circuit 10. Thus, said comparator circuit 10 compares and mixes a triangular wave from the triangular wave generator circuit 7 with an output voltage from the error amplifier circuit 9 to convert the mixed output into ON-OFF waveform to transmit it to the drive circuit 5. Then, said drive circuit 5 applies a reverse bias to the main transistor at the time of shifting from ON to OFF.
Patent JP-S55103421-A (JP)
Title: Measuring sensor for gas flow rate
Inventor: IBE HIDEFUMI
IPC: G01F1/32
Filed: 1979-02-05
Abstract: PURPOSE: To realize the simplification and miniaturization of the structure plus facilitation for the remote indication recording, by converting the Karman vortex caused in the gas into the frequency of the sound.  
     CONSTITUTION: The diameter of gas pipe 1 forming the gas flow path is decreased gradually and partially along the flowing direction of the gas, thus forming reduced diameter part 1'. And thin bar 2 is provided into part 1' to form an obstacle vertical to the flow of the gas, and the gas flowing speed at the part of bar 2 is controlled to be within the Raynolds number. In addition, flow path part 1a extending toward the downstream from bar 2 is formed along with attachment part 1b extended toward the lower part each. And sound-sensitive element 3 such as the microphone or the like is attached to part 1b. As a result, the Karman vortex is caused in the flow of the gas via bar 2, and the frequency of the Karman vortex is converted into the frequency of the sound by element 3. Thus the measurement can be given to the gas flow amount. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5295092-A (JP)
Title: High temperature thermister element
Inventor: HIKOSAKA HIROO
IPC: H01C7/04
Filed: 1976-02-04
Abstract: PURPOSE: To obtain spinel two component MgCr 2 O 4 -MgFe 2 O 4  system ceramic resistor with small resistance variance which is contained in heat-resistive metallic pipe and used as high temperature thermister in such as exhaust gas temperature detection of internal combustion engine. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09201903-A (JP)
Title: Polyethylene coated steel pipe
Inventor: FUNATSU SHINICHI
IPC: B32B1/08
Filed: 1996-01-26
Abstract: PROBLEM TO BE SOLVED: To materialize the easy removal of coating by separation and the threading on the coating. SOLUTION: As for a coated steel pipe laminating a modified polyethylene layer 2 and a polyethylene layer 3 in the order named onto the surface, which is treated, of a steel pipe, the surface roughness R of the steel pipe is set to be 10-100μm. Accordingly, since the removal of coating by separation is easy and the threading on the coating is possible, the working properties of piping application by means by welded joint and threaded joint becomes good.
Patent JP-H07217181-A (JP)
Title: Wall decration material-mounting structure
Inventor: YAMAMOTO NOBORU
IPC: E04F13/08
Filed: 1994-02-03
Abstract: PURPOSE:To mount a decoration material with a mounting jig promptly and easily and enhance workability and reliability as well. CONSTITUTION:In a wall decoration material mounting structure which mounts a decoration material 6 horizontally connected to the wall of a building by way of a mounting jig installed at a proper spacing, a fit-projected part 8 having an engagement part 9 is formed on the rear side of the decoration material 6. A fit-in receiving part 13 into which the fit-projected part 8 fits is formed in the mounting jig 7 while an engagement receiving part 15 which engages with the engagement part 9 is formed in the fit-in receiving part 13.
Patent JP-H02193370-A (JP)
Title: Magnetic disk device
Inventor: KOMI YOSHINORI
IPC: G11B21/10
Filed: 1989-01-20
Abstract: PURPOSE:To promote the reliability of data by outputting plural times in dividing a servo control signal by once servo sampling. CONSTITUTION:A servo signal corresponding to the deviation from a track T is read out by a magnetic head 3a (or 3b) when it passes a servo signal field SF once a sector ST. An error sample signal ESS is generated by a position signal generating circuit 14 based on the read servo signal and sent out to a positioning circuit 15. The servo control signal SCS corresponding to the signal ESS is outputted at once by the circuit 15 to a head actuator 9. When a servo control amt. is in excess of a reference value, a dividing quantity is set by the reference value, and a control dividing signal corresponding to this quantity is outputted by the circuit 15 to the actuator 9. This is repeated until servo control quantities are outputted. By this method, the occurrence of a spike-like voltage can be prevented, and an S/N ratio at the time of reading can be improved, and then noise contained in a data signal is reduced, thus promoting the reliability on the data.
Patent JP-H05205289-A (JP)
Title: Optical pickup
Inventor: SHIMAMURA TETSUO
IPC: G11B7/09
Filed: 1992-01-27
Abstract: PURPOSE:To provide a downsized optical pickup for optically recording, reproducing or erasing data in which the number of operational amplifiers is reduced and noise is suppressed. CONSTITUTION:PD1a-PD1h are light receiving elements, each split into eight sections, and which detect laser light reflected on an optical disc. Adders/ amplifiers IC1, IC2, IC3, IC4 add and amplify output currents from the PD1b and PD1h, PD1d and PD1f, PD1a and PD1g, and PD1c and PD1e, respectively. Adders/amplifiers IC5, IC6, IC7 and IC8 add and amplify output signals from adders/amplifiers IC1 and IC2, IC3 and IC4, IC1 and IC3, and IC2 and IC4, respectively. Output signals from the adders/amplifiers IC5 and IC6 are fed to a phase comparator A to produce a focus control signal. Output signals from the adders/ amplifiers IC7 and IC8 are fed to a phase comparator B to produce a tracking control signal.