baber/WOPTO huggingface dataset:
Patent JP-S5753106-A (JP)
Title: Muting circuit
Inventor: IENAKA MASANORI
IPC: H04B1/10
Filed: 1980-09-17
Abstract: PURPOSE: To prevent the occurrence of pop tone at the release time of muting just after power supply, by short-circuitng a bias resistance for a constant time by a switch means.  
     CONSTITUTION: Just after power supply, a bias resistance RB is short-circuited by a transistor TRQ 7  which is turned on by a switch SW 2 . Consequently, the base voltage of a differential amplifying TRQ 1  follows a bias voltage VB 1 , which rises rapidly from a time t 1  just after power supply, approximately to rise, and therefore, a bias voltage VB 1 ' formed by negative feedback rises similarly. Thus, when a switch SW 1  is switched to the (b) side at a time t 2  to release the muting operation, bias voltages VB 1  and V 2 ' are equal to each other, and the occurrence of pop tone is prevented. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S61283464-A (JP)
Title: Simple automatic welding machine
Inventor: KATAYANAGI SHINICHI
IPC: B23K9/12
Filed: 1986-06-04
Abstract: PURPOSE:To execute precise welding so that the uniform and sure welding to good quality is made possible by subjecting the arc light detected by a photodetector for photometry to current control. CONSTITUTION:The current value at which optimum conditions are obtainable is preliminarily determined and the value corresponding thereto is preliminarily set to a reference value setting knob. The photocurrent detected by the photodetector for photometry is amplified and is compared with the reference voltage value set by the reference value setting knob in a comparator circuit. A current control circuit is so operated that both values are made equal. The current control circuit operates to increase the current when the amplified output from the photodetector for photometry is lower than the reference voltage value and conversely the current control circuit operates to decrease the current when said output is higher than said reference value. The circuit is so operated as to maintain the current value is said stage when both values are equal. The precise arc welding is thus executed while the current is automatically controlled so as to obtain the optimum discharge at all times.
Patent JP-H0310366-A (JP)
Title: Artificial neural network
Inventor: DABITSUDO SHIEFUA
IPC: G06N3/08
Filed: 1990-05-19
Abstract: PURPOSE: To optimize the architecture of a neural network by learning the neural network represented by corrected symbol strings, evaluating the network and correcting the strings representing the improved neural network. CONSTITUTION: The symbol strings representing the selected network is corrected in accordance with a genetic algorithm to generate the new symbol strings which represent new neural network architectures. Then, these architectures are learned by learning groups, evaluated by evaluation groups so as to again obtain a network having a best performance. The symbol strings, which represent improved network, are continuously obtained till a sufficiently optimized network architecture is obtained.
Patent JP-S61289958-A (JP)
Title: Ladle for die casting aluminum
Inventor: SAKAI JUNJI
IPC: B22D39/02
Filed: 1985-06-14
Abstract: PURPOSE:To obtain a ladle having excellent durability for die casting aluminum by consisting the ladle of a sintered body 4 elements Si-Al-O-N formed by adding Al2O3, Y2O3 and AlN to silicon nitride as an essential component. CONSTITUTION:The ladle for die casting aluminum is formed of a ladling part 1 for an aluminum melt and a port 2 for pouring the ladled aluminum melt into a mold. The ladle is formed of the sintered body of the 4 elements Si-Al-O- N formed by using the silicon nitride as the essential componnt and adding Al2O3, Y2O3 and AlN thereto. A metallic fixture 3 is provided to the ladle and the ladle is connected to a die casting machine body by said fixture.
Patent JP-S5917716-A (JP)
Title: Ultrasonic delay line
Inventor: AKIMOTO MASAO
IPC: H03H9/30
Filed: 1982-07-21
Abstract: PURPOSE:To make a delay medium small-sized and reduce the production cost, by sticking a pair of transducers to both ends of the hexahedral delay medium, where faces opposing each other are parallel with each other and adjacent faces form right angles, so that these transducers do not oppose each other. CONSTITUTION:Metallic electrodes 12a and 12b are formed in both end parts of a delay medium 11 which consists of glass, metals, ceramic, or the like and is formed to a hexahedron where faces opposing each other are parallel with each other and adjacent faces form right angles. A pair of transducers 13 and 14 for input and output are stuck onto these electrodes so that transducers 13 and 14 do not oppose each other. Metallic electrodes 15 and 16 are formed on these transducers 13 and 14, and lead wires 18 and 19 for input and output are attached to surfaces of electrodes 15 and 16, and lead wires 17a and 17b for earth are attached to metallic electrodes 12a and 12b. Ultrasonic waves excited by the transducer 13 for input are propagated in a propagation path 21 while being reflected plural times in the delay medium 11 and reach the output transducer 14.
Patent JP-S62286009-A (JP)
Title: Objective lens for recording and reproducing optical information
Inventor: ARAI NORIKAZU
IPC: G02B13/18
Filed: 1986-06-04
Abstract: PURPOSE:To obtain a lens which is capable of chromatic aberration compensation required for a mode hop countermeasure and has a joint surface formed into a spherical surface, by constituting the lens of the first double convex lens whose object-side face is formed into an aspherical surface and the second negative lens stuck to the image-side face of the first lens and satisfying specific conditions. CONSTITUTION:This objective lens consists of the first double convex lens whose object-side face is aspherical and the second negative lens stuck to the image-side face of the first lens, and conditions of formulas are satisfied. In this case, a positive lens having a large Abbe's number and a lens having a small Abbe's number are joined to compensate the chromatic aberration, it is necessary to properly determine the radius of curvature of the joint surface. The first condition specifies this radius of curvature; and if the radius of curvature of the joint surface is larger than the upper limit, it is difficult to increase the numerical aperture though compensation of the chromatic aberration is advantaged. If the radius of curvature is shorter than the lower limit, the curvature of the object-side face of the double convex lens is too high to compensate the chromatic aberration, and the sine condition is degraded.
Patent JP-H04330406-A (JP)
Title: Optical jumper
Inventor: TAKEUCHI TOMOMI
IPC: G02B6/30
Filed: 1991-05-02
Abstract: PURPOSE:To facilitate the change of the optical wirings of thin film waveguides. CONSTITUTION:This optical jumper has end faces 3 which are formed by notching the paired optical waveguides 2 of a substrate 1 respectively to a V shape in section and are perpendicular to the progressing direction of light, reflection surfaces 4 having 45 deg. angle with the end faces 3, and an optical fiber 5, the ends of which cut at 45 deg. angle with the axis are adhered to the respective reflection surfaces 4 perpendicularly to the substrate surface. The light propagating in the one optical waveguide 2 is thereby bisected to the transmitted light, which is transmitted through the reflection surface 4 and is again propagated in the one optical waveguide 2 and the reflected light reflected perpendicularly to the substrate surface at the reflection surface 4 after propagation in the space. The reflected light is reflected by the optical fiber 5 to the reflection surface 4 of the other optical waveguide 2 and is returned to the other optical waveguide 2.
Patent JP-S62285690-A (JP)
Title: Adjustable speed induction motor
Inventor: SATAKE TOSHIHIKO
IPC: H02P21/04
Filed: 1986-06-02
Abstract: PURPOSE:To change the rotational speed of a rotor arbitrarily by connecting windings wound on a plurality of stators in series, connecting a voltage phase- shifting device to at least one of the windings and generating the displacement of phase in magnetic flux. CONSTITUTION:Each of a plurality of conductors 5 mounted to rotor cores 2, 3 is connected in series, thus forming an integral rotor 8. A first stator 24 and a second stator 25, to external sections of which oppositely faced to the rotor cores 2, 3 windings 22, 23 are executed, are disposed in an array with a machine frame 14, and the windings 22, 23 wound on stators are connected in series. A pulse motor 35 is operated and each of the first stator 24 and the second stator 25 is turned in the opposite direction, and the displacement of phase is generated in the magnetic flux of a rotating field generated in the stators. Accordingly, rotational speed can be changed arbitrarily.
Patent JP-H10319924-A (JP)
Title: Liquid crystal display panel driving circuit of digital system
Inventor: AHAN GIL BUM
IPC: G09G3/36
Filed: 1998-05-12
Abstract: PROBLEM TO BE SOLVED: To reduce instantaneous power consumption by providing a multiplexer between an output amplifier array and data line of a liquid crystal display panel or the like thereby simplifying the circuit configuration. SOLUTION: This driving circuit 40 is provided with a first latch array 42, the second latch array cascaded to the first latch array 42, a multiplexer 46 and a D-A converter array 48. The first and the second latch arraies are respectively constituted of 2400 pieces of latches or the like. The multiplexer 46 separates 800 pieces of pixel data from the second latch array 44 at a time to transfer them to the D-A converter array 48 side while dividing them in three times. Consequently, the number of converters of the D-A converter array 48 and amplifiers of the output amplifier array 52 is reduced to the half, the one third the number of data lines DL1-DL2400 or a number less than these numbers. Thus, instantaneous power consumption of circuits is reduced.
Patent JP-H0620650-A (JP)
Title: Low-pressure discharge lamp
Inventor: FUUBERUTO SHIYAFUNITSUTSUERU
IPC: H01J61/33
Filed: 1993-04-30
Abstract: PURPOSE: To provide a low pressure discharge lamp having the best lamp efficiency value even at low ambient temperature. CONSTITUTION: In a low pressure discharge lamp 1 having a discharge tube 2 constructed from one or plural glass tubes each curved into a U shape, each glass tube curved into a U shape comprises two vertical tubes 8, 9 and a 180 deg. curved part 10. The bore of the 180 deg. curved part 10 decreases from the transit part of the vertical tubes 8, 9 toward apexes I, I' and has an almost elliptical inner cross section at the apexes I, I', in which case the ratio of its minor axis (d) to its major axis D satisfies the equation 0.5<=d/D<=0.9, with the minor axis (d) formed along the direction of the vertical tubes 8, 9 and the major axis S coinciding with the bores of the vertical tubes 8, 9.
Patent JP-S6163670-A (JP)
Inventor: MISHIERU ARIKO
IPC: C07D277/72
Filed: 1985-06-14
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H05318099-A (JP)
Title: Vapor reflow soldering device
Inventor: SANKAI HARUO
IPC: H05K3/34
Filed: 1992-05-21
Abstract: PURPOSE:To improve the yield at the time of production of a work by executing sure soldering as there is no degradation of solderability by the movement of solder in a soldering part and there is the sufficient molten solder in the soldering part. CONSTITUTION:This vapor reflow soldering device executes soldering by transporting a work 16 by means of a conveyor 15 to a vapor generating chamber 4 which generates satd. vapor 13 of a heat medium 12, bringing the satd. vapor into contact with the work 16 and melting the solder on the work by heating. A vapor chamber 39 for heating the work from the rear surface thereof by storing the satd. vapor is provided upstream of the vapor generating chamber 4. A height varying mechanism 41 is so provided that the satd. vapor 13 stored in this vapor chamber 39 attains about the height at which the vapor comes into contact with the rear surface of the work 16 transported on the conveyor 15.
Patent JP-S6020612-A (JP)
Title: Manufacture of crystal resonator
Inventor: GOTOU HAJIME
IPC: H03H3/02
Filed: 1983-07-14
Abstract: PURPOSE:To realize automation by adding a process for making a mutual interval constant by pressing an outer lead, into a manufacturing process of a crystal resonator, and simplifying the subsequent fitting work to a wiring board. CONSTITUTION:A lead 2 consists of an outer lead 6 and an inner lead 5, and the tip part of the lead 6 is inserted through a pair of holes 1a, 1a pierced on a base 1, and sealed with glass. Also, the plate-like inner lead 5 for holding a crystal piece 3 thereafter is welded to the part projecting upward from the base 1. Subsequently, it is held on a jig 20, and the pressing is executed by molds 21- 23, by which an interval of the leads 6, 6 are put in order so as to be constant, therefore, the subsequent work for attaching the leads 6, 6 to terminal inserting holes 25a, 25a of a wiring board 25 is simplified, and the automation can be executed.
Patent JP-H04329793-A (JP)
Title: Analog input processing circuit adjustment method for video printer
Inventor: ATSUNUSHI YUKINORI
IPC: H04N9/79
Filed: 1991-04-30
Abstract: PURPOSE:To adjust an analog input processing circuit of a video printer with a simple method in which two signal waveforms are made coincident, an adjustment error is less and automation is facilitated. CONSTITUTION:A analog video signal and a digital video signal of a same video source are fed simultaneously and respectively inputted to an analog input terminal 1 and a digital input terminal 17 and a signal waveform at an analog input side and that at a monitor output side in a memory 6 for print information storage are compared. Then the characteristic of an analog input processing circuit 2 is adjusted so that the signal waveform at the analog input and that at the monitor output are coincident with each other.
Patent JP-H04331610-A (JP)
Title: Eccentric hold type suspending method and device
Inventor: YOSHIOKA KOJI
IPC: B60G15/06
Filed: 1991-04-30
Abstract: PURPOSE:To mitigate the longitudinal shock and vibration and reduce the vertical input by rotatably supporting a wheel around one shaft of an eccentric holder with two parallel shafts, and supporting the other shaft vertically above an axle. CONSTITUTION:When a wheel 3 collides with a road surface projection, the load point A of a vehicle body 2 is moved forward then downward. The wheel 3 is moved to escape backward by the action of a spring damper 5, thus the front shock and vibration can be absorbed. The wheel 3 rides over the road surface projection 4 and is moved upward, the load point A of the vehicle body 2 is moved downward on the contrary, thus the goading of the road surface projection 4 to the vehicle body 2 is reduced. The performance of a suspension device constituted of an eccentric holder 1 can be improved.
Patent JP-H05239841-A (JP)
Title: Method and device for suspending and installing block
Inventor: KAWASHIMA HISAICHI
IPC: E02D29/02
Filed: 1991-04-30
Abstract: PURPOSE:To conduct in a short time by a small number of persons a series of operation, in which a concrete block having an opening at the center of a top face is transported and installed at a specified position. CONSTITUTION:A support frame 3 is mounted around mutually orthogonal three axes in an inclinable or rotatable manner in the intermediate section of a support lever 2 having a hanger 1 at an upper end, and a jack 28 is set up to a section lower than the position of the mounting of the support frame. A support pawl 41 engaged with a block is fitted to the support frame 3, and the support lever 2 is inserted into the opening of the top face of the block and suspended. When the block is installed, the lower end of the support lever 2 is grounded, the jack 28 is lifted and the block is supported, and the block is positioned by the tilting operation of the support lever 2, the lifting and lowering operation of the jack 28 and the rocking operation in the periphery of the three axes of the support frame 3. It is favorable that the support lever 2 is constituted in an extensible manner at a position upper than the position of the mounting of the support frame 3.
Patent JP-S62285505-A (JP)
Title: Display device
Inventor: YAMAGUCHI TAKAO
IPC: H03F1/32
Filed: 1986-06-03
Abstract: PURPOSE:To attain loudspeaking without distortion by providing a reference voltage section to a power supply and detecting and displaying an output of a power amplifier so as to display the maximum output level and adjust an input signal source. CONSTITUTION:The reference voltage generating section is provided to the power supply of the power amplifier 2 to light a display element by the result of comparison between the reference voltage and the output voltage of the power amplifier 2. If a power voltage (-Vcc) of the power amplifier 2 is fluctuated, since the voltage of a reference voltage diode 7 and an emitter voltage of a transistor 5 are fluctuated similarly, the maximum output voltage of the power amplifier 2 is detected by the voltage setting of the reference voltage diode 7 and the maximum output voltage is displayed independently of the fluctuation of the power voltage. Further, the display device is lighted by clipping, then the sound is subjected to loudspeaking without distortion by the level adjustment.
Patent JP-H04329515-A (JP)
Title: Manufacture of dimming liquid crystal sheet
Inventor: NAKAGAWA SUMIHITO
IPC: G02F1/13
Filed: 1991-04-30
Abstract: PURPOSE:To provide the manufacture of the durable dimming liquid crystal sheet which excellent transparency in voltage application and excellent white turbidity in voltage nonapplication and also has excellent electric characteristics while liquid crystal drops formed in a liquid crystal layer by phase separation have proper particle size. CONSTITUTION:Two transparent electrode films 3a and 3b are laminated across photosetting liquid crystal containing resin liquid 9 and the laminate body 10 is passed in liquid and irradiated with light over temperature control to set the liquid crystal containing liquid 9; and liquid crystal is deposited by the phase separation from an early stage of the photosetting process and grown to form the liquid crystal layer 2 wherein the liquid crystal drops having proper particle size are dispersed. The temperature of the liquid is set preferably below upper-limit temperature which is 20 deg.C higher than the phase separation temperature of the liquid crystal containing liquid 9.
Patent JP-2000318116-A (JP)
Title: Offset printing method
Inventor: NAKAYAMA TAKAO
IPC: G03F7/00
Filed: 1999-05-10
Abstract: PROBLEM TO BE SOLVED: To provide an offset printing method which satisfies the suitability for simple plate-making not using a developer, the printed image quality backed with the discriminability between an image part and a non-image part of a printing surface and a sufficient resistance to printing altogether. SOLUTION: An original plate for printing which has on the surface a metal having characteristics of high-temperature hydrophilic nature development is made hydrophobic and then the surface is subjected to image-pattern heating at the temperature of the high-temperature hydrophilic nature development, so as to form a hydrophilic/hydrophobic regional image-pattern distribution thereon. A water solution containing a water-soluble compound of a metal having a lower ionization tendency than the metal having the characteristics of the high-temperature hydrophilic nature development is brought into contact with the original plate and a metal thin layer is formed in an image pattern in the hydrophilic region by metal substitution.  Moreover, a treatment for giving the hydrophilic nature to the hydrophobic region is executed and the original plate for printing thus treated is brought into contact with ink. Thereby a printing surface having received the ink is formed in the region having the metal thin layer and printing is conducted.
Patent JP-S5832028-A (JP)
Title: Preparation of goethite
Inventor: MATSUNAGA MITSUO
IPC: C01G49/02
Filed: 1981-08-19
Abstract: PURPOSE:To obtain needle-like goethite having uniform particle size distribution especially useful as a raw material for a magnetic material, by feeding intermittently an oxidizing gas to a hydroxide prepared by the reaction between an aqueous solution of a ferrous salt and an alkali aqueous solution in a circulating path while the hydroxide is circulated. CONSTITUTION:A suspension of a hydroxide obtained by reacting an aqueous solution of a ferrous salt (e.g., ferrous sulfate) with an aqueous solution of an alkali (e.g., NaOH) is circulated while being partially taken out. An oxidizing gas (e.g., O2, air) is intermittently fed to the circulating path of the suspension, so that the hydroxide is oxidized into goethite. The feed time of the oxidizing gas is made <=1/4 of the feed stopping time, and the feed time in the feed-stop cycle is made usually <=20min. The oxidation ratio of the above-mentioned one cycle is made <=10%. While, the formation of the hydroxide and its oxidation is carried out at 20-80 deg.C, the prepared goethite is in needle-like form and has a uniform particle size distribution, alpha-iron powder obtained by reducing and oxidizing it conventionally is useful as a raw material for a magnetic material.
Patent JP-S618696-A (JP)
Inventor: NISHIMURA AKIRA
IPC: G21C3/28
Filed: 1984-06-22
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-H06340856-A (JP)
Title: Frame-retardant adhesive
Inventor: TAKAOKA SEIICHI
IPC: C09J179/08
Filed: 1993-05-31
Abstract: PURPOSE:To obtain a flame-retardant adhesive which does not generate halogen gases, hydrogen halide gases, etc., and can be used for a variety of products such as flexible printed wiring boards and flat cables. CONSTITUTION:The adhesive is prepared by mixing 100 pts.wt. ethylene/acrylic ester/maleic anhydride terpolymer as the base with 50-100 pts.wt. aluminum hydroxide and/or magnesium hydroxide, 1-20 pts.wt. polyimide resin powder and 1-20 pts.wt. ferrocene.
Patent JP-H10317729-A (JP)
Title: Light weight built-up tomb
Inventor: HARUYAMA KATSUNOBU
IPC: E04H13/00
Filed: 1997-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a built-up tomb which is completed by assembling parts individually manufactured by ceramics or FRP resin instead of natural stone by screws or the like. SOLUTION: This tomb comprises a base part 1, middle stage parts 2, 3, and a grave stone part 4, which are respectively hollow, wherein the middle parts 2, 3 built on the upper stages and bearing walls 1a, 2a, 3a fitted to the inner periphery of the lower opening part of the grave stone part 4 are formed on the base part 1 and the middle stage parts 2, 3, and the respective bearing walls 1a, 2a, 3a, the middle stage parts 2, 3, and the inner periphery of the lower opening part of the grave stone part 4 are provided with a fixed part 8 comprising a fixing means such as a screw or the like. The base part 1, the middle parts 2, 3 and the grave stone part 4 can be made of FRP or ceramics.
Patent JP-S5253445-A (JP)
Title: Measuring method
Inventor: MACHIDA HARUHIKO
IPC: G01C3/06
Filed: 1975-10-27
Abstract: PURPOSE: To indirectly measure a distalnce by projecting a laser beam at a given angle of torsion with respect to the surface at a preset distance to determine the position of the  object b being detected in terms of ratio. 
     COPYRIGHT: (C)1977,JPO&Japio