baber/WOPTO huggingface dataset:
Patent JP-S61249013-A (JP)
Title: Automatic focusing device
Inventor: KIMURA KENJI
IPC: G02B7/36
Filed: 1985-04-27
Abstract: PURPOSE:To permit an automatic focusing operation with high accuracy by the constitution consisting in adjusting a focus signal by the difference in the quantity of light to two photodetecting parts, detecting preferentially the larger output and setting a blind zone relating to a focusing signal according to the output thereof. CONSTITUTION:The automatic focusing signal from an adjusting circuit 13 is detected by the output signal based on the difference in the quantity of the incident light on the photodetecting parts 12a, 12b which detect the beam reflected from a subject 10. A preferential detection circuit 14 detects the larger output signal thereof. The blind zone relating to the automatic focusing signal is variably set according to the output from the circuit 14 when said signal is conducted to a blind zone setting circuit 15. Since the automatic focusing device has the circuit 14, the ratio of the photocurrent with respect to dark current is increased and the level of the quantity of the reflected light is detected in the good SN ratio state. The blind zone in the circuit 13 is variably set by using the output from the circuit 14 and therefore the automatic focusing at a high response speed with high accuracy is made possible without being affected by the fluctuation in the quantity of the incident light.
Patent JP-H01264286-A (JP)
Title: Semiconductor quantum well laser
Inventor: IMAMOTO HIROSHI
IPC: H01S5/343
Filed: 1988-04-15
Abstract: PURPOSE:To improve temperature characteristics and threshold current after obtaining steep hetero interfaces and active layers of good quality, by causing each thick barrier layer surrounding the both sides of an active layer to have a superlattice structure possessing a mixed crystal ratio by laminating alternately thin films having different mixed crystal ratios, the mixed crystal ratio of the superlattice structure being an intermediate value of the ratios of the thin films. CONSTITUTION:A semiconductor laser is manufactured by forming various layers: an n-type GaAs buffer layer 2; an n-type Al0.4Ga0.6As clad layer 3; non-doped Al0.4Ga0.6 As/GaAs superlattice barrier layers 4; non-doped GaAs quantum well active layers 50Angstrom  5; a p-type Al0.7Ga0.3As clad layer 6; and a p-type GaAs cap layer 7 are caused to grow continuously on an n-type GaAs substrate 1. In such a case, a large number of layers of Al0.4Ga0.6As 21 and GaAs 22 are laminated alternately in the superlattice battier layer 4. The average composition of Al in the barrier layer 4 is 0.2. This situation allows the interval between the X point and the GAMMA point to have a large value due to provision of each barrier layer 4. Then, this configuration decreases the leakage of injected carriers and improves the temperature characteristics. Further, on the occasion of seeking short wavelengths, the rise of threshold value is suppressed.
Patent JP-H03289626-A (JP)
Title: Electrooptical device
Inventor: OBARA HIROSHI
IPC: G09F9/00
Filed: 1990-04-06
Abstract: PURPOSE:To obtain the electrooptical device of high quality which has no contrast in display operation by setting the division values between the length and width of lead-around parts connecting the display parts of transparent electrodes of respective rows and columns and terminal parts for signal input within a constant range. CONSTITUTION:In the layout of the lead-around parts 1, display electrode parts 2, and terminal parts 3 for signal input, the width (d) of the lead-around part 1 is varied according to the length (l) so that l/d is within the constant range. Further, the value (l/d) is set preferably to 5 - 100 and when the gap 4 between patterns are minimized matching the patterning accuracy of each pattern so as to suppress the generation rate of a short circuit between patterns, the process margin is widened and the uniformity and accuracy of the lead-around parts 1 can be controlled with higher efficiency. Consequently, the electrooptical device which has a uniform display level and high picture quality can be obtained.
Patent JP-H02273320-A (JP)
Title: Apparatus for producing protective film for magnetic disk
Inventor: NISHIMOTO TAKUYA
IPC: G11B5/84
Filed: 1989-04-13
Abstract: PURPOSE:To form the protective film always in a stable state with the device for forming a polymerized film by a plasma polymn. as the protective film by providing a supplying means which supplies a solid org. compd. continuously at a constant rate to a heating port. CONSTITUTION:The solid org. compd. 9 is supplied continuously at the constant rate onto the port of a resistance heating element 10 by a device 13 for supplying the solid org. compd. A voltage is impressed by a power source 11 to the resistance heating element 10 and the plasma polymn. is effected by evaporating the org. compd. 9 to form the protective film on a ferromagnetic metallic film. A tape is wound by rolls 5, 6 to form the fresh protective film when the formation of the protective film ends. The org. compd. 11 is eventually supplied continuously at the constant rate to the resistance heating element 12 by the supplying device 15 at this time. The formation of the protective film in always the stable state is possible in this way.
Patent JP-S5717847-A (JP)
Title: Apparatus for detecting gas
Inventor: SUGAWARA TOSHIO
IPC: G01N33/00
Filed: 1980-07-07
Abstract: PURPOSE:To prevent the mulfunction of gas detecting apparatus by the component other than a monitoring object gas, by removing an interfering gas containing in the gas to be detected with a removing material of the interfering gas. CONSTITUTION:A detecting element 1 is attached in a case 4 putting in the material reacting with gas components (interfering gas) having a bad influence upon the element 1 among the gas components other than the gas to be or a material (removing material of the interfering gas) 3 adsorbing the interfering gas. The gas to be can be passed through the material 3 and also, its material is differed by the kind of gas to be removed. For example, titanium-manganese group alloy, copper magnesium, nickel lanthanum, are used for H2 removing material, copper hydrochloric acid, copper ammonia, copper zinc chloride or the like are used for CO removing material and activated alumina, silica gel, synthetic zeolite or the like are used for an adsorbent of H2O, organic solvent gas.
Patent JP-H03290201-A (JP)
Title: Rattan mat
Inventor: UEDA MASAJI
IPC: D06M101/08
Filed: 1990-04-06
Abstract: PURPOSE:To strengthen integrally a resin material and a wall section and add coloring properties and other functions by impregnating cell space sections of rattan with bonding thermoset synthetic resin and finishing. CONSTITUTION:A given rattan mat 1 preliminarily provided is put into an impregnation tank of double vacuum process and closed and then air in the front section of the tank and also air in cell spaces IC of flaps of rattan mat are exhausted to vacuumize the same and said vacuumized state is retained for the given time, and then bonding thermoset synthetic resin impregnating agent 1 is injected and filled in the tank and permeated into rattan cell spaces 1C. After that, the air is exhausted out of flap cell spaces 1C of rattan mat by injecting and filling the impregnating agent in the tank and adding the processes of pressurizing from the front section and exhausting the air out of the rear section, and bonding thermoset synthetic resin impregnating liquid 3 is permeated into said spaces. Then, excessive impregnating agent is sucked out of the tank, and then the inside of tank is vacuumized to suck out oversaturated impregnating agent into the flaps 1 of rattan mat and then discharge the same out of the tank. Also, a coloring agent is mixed with the impregnating liquid or a component with functions is also mixed therein by said process.
Patent JP-S57208881-A (JP)
Title: Driving system for sewing machine
Inventor: NEGI SHIGEO
IPC: H02P29/00
Filed: 1981-06-15
Abstract: PURPOSE: To realize a more reliable sewing machine which is simpler in construction and lower in price by a method wherein drive control is effected in response to a number of output setting signals consisting of multi-bit digital signals corresponding to pedal positions.  
     CONSTITUTION: When a pedel is depressed, a setting means 1 outputs a setting signal VS with its magnitude proportional to the distance the pedal is depressed. The signal VS causes a controlling means 2 to transmit the rotation of a motor to a sewing machine 4 through a driving means 3. A speed sensing means 5 linked to the sewing machine 4 outputs a rotational speed signal VF, and the sewing machine 4 is driven at a speed at which the detected signal VF matches the setting signal VS. When the pedal is returned to the neutral position, a position detecting means 6 outputs a needle position signal VND, causing the controlling means 2 to stop the sewing machine 4. Depressing the pedal again initiates a thread cutting cycle. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H05267770-A (JP)
Title: Light source provided with wavelength stabilizing device
IPC: G01N21/27
Filed: 1992-03-18
Abstract: PURPOSE:To stabilize a laser diode in oscillation frequency by a method wherein the light intensity modulation component of laser rays is removed, and only a component modulated by the absorption line of a gas cell to serve as a reference is extracted. CONSTITUTION:A bias current is applied to a laser 1 from a direct current source 11. Furthermore, projection light rays are modulated in frequency (f) by a frequency modulation current source 14. The f-modulated laser rays are detected by a photodetector 13 through the intermediary of a reference gas cell 12. The f-component of the electrical signal is removed through a band elimination filter 15, and the rest of the electrical signal is rectified through a half-wave rectifying circuit 16. Only an f component generated by rectification is outputted through a band-pass filter 17 and detected by a synchronous detector 18. Detected signals are fed back to the direct current source 11.
Patent JP-S58212538-A (JP)
Title: Paper feed selection control device
Inventor: FUKUDA SHIGERU
IPC: G03G21/00
Filed: 1982-06-01
Abstract: PURPOSE:To prepare a copy differing in its color only on its head page by controlling and changing over paper feeding such that the first document is fed from a paper feeding part in higher priority and the second and subsequent documents are fed from the paper feeding part in lower priority in a paper feeding device equipped with a plurality of the paper feeding parts. CONSTITUTION:With a power source turned on, and a numeral input key 19 pushed down, the number of copies is inputted, and the desired paper feeding parts are selected out of those parts 1-3 and inputted by means of a paper feeding part selection input keys 20, 21. Here, by pushing down a copying initiating input key 22, a copying operation is performe. And, it is judged in this case whether a paper feeding part in the first priority is selected or not by the key 20. If only the key 20 is inputted, i.e., only one paper feeding part is selected, paper is fed from this selected paper feeding part, allowing a copying operation for the set number of copies is completed. On the other hand, with the key 21 inputted, paper is copied after feeding the paper selected by the key 21, and thereafter the input from the key 21 is cleared. A copying operation for the second and subsequent documents are performed from a paper feeding part selected by the key 20.
Patent JP-H05263229-A (JP)
Title: Production of aluminum oxide thin film
IPC: C23C14/34
Filed: 1992-03-18
Abstract: PURPOSE:To form an Al2O3 thin film on a substrate at a high rate by sputtering by performing reactive sputtering with an Al-Al2O3 mixture as a target. CONSTITUTION:A target consisting of an Al-Al2O3 mixture is used, and reactive sputtering utilizing a sputtering gas of Ar, etc., contg. O2 as a gaseous reactant is performed to form an Al2O3 thin film as the protecting or insulating film for the thin-film element on the surface of a substrate. In this case, a target contg. >=30vol.% Al or 50-95vol.% Al and the balance Al2O3 is used to form an Al2O3 thin film at a high rate.
Patent JP-H05261874-A (JP)
Title: Polyamide type heat-shrinkable multilayered film
IPC: B29L7/00
Filed: 1992-03-17
Abstract: PURPOSE:To enhance pinhole resistance, tensile force and gas barrier properties by laminating a polyamide resin layer, a modified polyolefin adhesive resin layer and a polyolefinic resin layer by co-extrusion method and specifying the compsn. or various conditions of the polyamide resin layer. CONSTITUTION:A polyamide type heat-shrinkable film is constituted of a multilayered plastic film containing a laminated structure wherein a polyamide resin layer, a modified polyolefinic adhesive resin layer and a polyolefinic resin layer are adjacent to each other in this order. The polyamide resin layer is composed of 20-80wt.% of a xylylenediamine type polyamide resin and 80-20wt.% of other polyamide resin and the total thickness of the film is set to 25-150mum. The oxygen permeability of the film within an entire humidity region in a water bonded state is set to 100cc/m<2>.day.atm or less. By this constitution, pinhole resistance, tensile force and gas barrier properties are enhanced.
Patent JP-H07291886-A (JP)
Title: Production of vinylketone derivative
Inventor: HARADA YOSHIO
IPC: C07C49/794
Filed: 1994-04-28
Abstract: PURPOSE:To obtain a vinyl ketone derivative useful as a raw material for a polymer and a physiologially active substance efficiently and in high yield, by oxidizing a specific end allyl alcohol in the presence of an aldehyde not containing alpha-hydrogen and an aluminum catalyst. CONSTITUTION:An end allyl alcohol of formula I [R<1> is a (substituted) alkyl, a (substituted)alkenyl, a (substituted)alkynyl or a (substituted)aryll such as 1,7- octadien-3-ol is oxidized in the presence of an aldehyde not containing alpha- hydrogen and an aluminum catalyst such as aluminum isopropoxide to give the objective vinyl ketone derivative.
Patent JP-S5718473-A (JP)
Title: Semi-, sub-type temperature difference power barge
Inventor: HOSHINO SATOSHI
IPC: F03G7/04
Filed: 1980-07-08
Abstract: PURPOSE: To save space and curtail a construction cost by setting a plant barge of a sea water temperature difference power plant to be a semi-, sub-type forming into one body a heat exchanger occupying the greater part of the plant and an underwater lower hull.  
     CONSTITUTION: As shown in the figures, this plant barge, which is set in a semi-, sub-type, comprises the part above the sea surface and the part immersed underseas. Underwater lower hulls 1 and 1' almost symmetrical to each other. Cold water picked out of the deep sea is supplied to a comdenser 6 through an intake valve 2, a sea water intake 3 of the lower hull 1, a filter space 4 and a pump 5. The medium discharged from the turbine 11 of a dynamo is condensed into liquid after heat- exchange with the cold water, sent to an evaporator 6' through a pump 8' and evaporated into steam to drive the turbine 11 after heat exchange with warm water collected from the surface of the sea. The lower hulls are built in a dual structure so as to obtain buoyancy and insulate heat. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H04323620-A (JP)
Title: Color filter
Inventor: NISHIMOTO TAKASHI
IPC: G02B5/20
Filed: 1991-04-23
Abstract: PURPOSE:To obtain the color filter which has the transmission characteristics of light uniform over the entire region of visible rays and has the good characteristics of the blue part in particular by forming transparent electrodes of films consisting of zinc oxide or the zinc oxide doped with aluminum. CONSTITUTION:After the inside of a film forming chamber 6 is evacuated to a vacuum, discharge gases consisting of argon and hydrogen are so supplied as to attain a prescribed partial pressure. A magnet 14 which generates spiral motion in the electrons heading toward an anode is provided near a target 12 impressed with a high-frequency voltage. The color filter 2 to be formed with the transparent electrodes is heated to a prescribed temp. in a heating chamber 5 and is then sent to the film forming chamber where the color filter is disposed at the prescribed distance from the target 12 and is formed with the transparent electrodes. After the films are formed to a desired thickness, the color filter is taken out of an unloader chamber 8. The zinc oxide or the zinc oxide mixed with the alumina or the zinc oxide target on which an alumina plate is installed at a prescribed area ratio is used as the target 12.
Patent JP-H10283948-A (JP)
Title: Cathode-ray tube
Inventor: ICHIDA KOUSUKE
IPC: H01J29/51
Filed: 1997-04-10
Abstract: PROBLEM TO BE SOLVED: To prevent the distortion of side electron beams, and enhance image resolution in an in-line type electron gun by providing an magnetic field generation device for bending the side electron beams to a center electron beam between the control electrode and the main electron lens of the electron gun. SOLUTION: A magnetic field generation device 7 is installed, for instance, in the vicinity of the inlet of third grid G3, and electromagnets 8 outside a neck portion 3 and pairing magnetic pieces 9 inside the neck portion 3 are respectively pairing provided on the right and left of the neck portion 3 so as to face each other. Magnetic fields generated by causing current to flow in the electromagnets 8, magnetize the magnetic pieces 9 in the third grid 3 so as to form parallel magnetic fields sandwiching side electron beams Br, Bb. Current directions are set so as to generate the magnetic fields in the reverse directions between respective pairing magnetic pieces 9, and the current values flowing in the electromagnets 8 are set so that the side electron beams Br, Bb are incident on the main electron lens center at such angles as meeting Fraunhofer conditions.
Patent JP-S59218924-A (JP)
Title: Pyroelectric infrared-ray sensor
Inventor: KONISHI SHIYUUHEI
IPC: G01J1/02
Filed: 1984-05-09
Abstract: PURPOSE:To reduce the number of component parts and to make wiring easy by incorporating a pyroelectric film and a printed board into an outer case and holding and fixing the peripheral part of the pyroelectric film by the upper parts of conductive upper and lower holders. CONSTITUTION:A circuit element 20 is incorporated into a printed plate 16 and the lower end surfaces of a cylindrical conductive upper holder 22 and a cylindrical conductive lower holder 23 which are stacked through a receiving board 21 consisting of an insulating substance are electrically connected. The peripheral part of the pyroelectric film 25 is held between the ceiling surfaces of the conductive upper and lower holders 22, 23 which have openings at their upper centers. A window member 27 is arranged on the upper surface of the conductive upper holder 22, an outer case 29 is covered to the surface of the window member 27 and the lower end parts of the conductive holders are engaged and coupled with a bottom plate 15. Said constitution makes it possible to reduce the number of component parts and make the wiring easy.
Patent JP-S57206912-A (JP)
Title: Numerically controlled machine tool
Inventor: MIZOGUCHI KIYOHISA
IPC: G05B19/4093
Filed: 1981-06-15
Abstract: PURPOSE:To enable an inexperienced person to prepare a working program by providing the titled device with a memory storing cutting conditions corresponding various cutting methods and reading out a cutting condition at the preparation of the program to decide the cutting condition automatically. CONSTITUTION:A memory stores optimum cutting conditions corresponding to various cutting methods and a display device 1 displays registered values in the memory. If an operator depresses an ''AUTO'' switch at the preparation of a program, cutting methods and cutting positions of the program are judged and the optimum cutting condition is selected from the registered values in the memory to prepare the program.
Patent JP-S57206920-A (JP)
Title: Numerically controlled machine tool
Inventor: KAJINO SHIYOUJI
IPC: G05B19/408
Filed: 1981-06-15
Abstract: PURPOSE:To prevent a program from being complicated by executing the start and stop of a main shaft at the time of automatic operation without writing start and stop instructions for the main shaft in the program. CONSTITUTION:Before executing the 1st cutter feeding program in a memory storing programs to start the movement of a cutter board 6, an operation circuit 2 outputs a command to start a main shaft 5. After executing the final cutter feeding program to stop the movement of the cutter board 6, the operation circuit 2 outputs an instruction to stop the main shaft 5.
Patent JP-H03289875-A (JP)
Title: Feeding control method
Inventor: TANAKA AKIHITO
IPC: H04N7/16
Filed: 1990-04-06
Abstract: PURPOSE:To reduce useless power with less man-hour and to decrease power utility charge to be paid by providing a power supply control section sending power supply control information turning on/off a power application switch to each amplifier addressed to a desired coaxial transmission amplifier to a CATV center 10. CONSTITUTION:A power supply control section 20 of a CATV center 10 sends power supply control information turning on a power application switch for an amplifier in use to coaxial transmission amplifiers 1, 2, 3, 4, 5,.... Then the coaxial transmission amplifiers 1, 2, 3, 4, 5,... receive the power supply control input information addressed to themselves and uses a control section 31 to turn on each power application switch in the power application switch 30 in response to the content of the power control information. That is, no power is supplied to amplifiers not in use with less man-hour, useless power is decreased and the power charge to be paid is reduced.
Patent JP-H08290205-A (JP)
Title: Method for joining hot rolled slab
Inventor: HAMADA NAOYA
IPC: B23K26/06
Filed: 1995-04-18
Abstract: PURPOSE: To provide a method for joining a hot rolled slab capable of making a joining device for the slab small in size and simple in structure, and tack- welding slabs at a high speed. CONSTITUTION: In this method for joining both slabs 1 and 3 by butting the rear end face of a preceding slab 1 and the front end face of a succeeding slab 3, tack-welding a butted part 5 with laser along the butted part 5, and succeedingly pressure-welding the slabs subjected to the tack welding, the hot rolled slabs are laser-welded by converging laser beams to a groove part in oblong so as to transverse a weld seam.
Patent JP-H09285019-A (JP)
Title: Illuminating device
Inventor: MIZUMOTO HIDEAKI
IPC: H02J7/00
Filed: 1996-04-15
Abstract: PROBLEM TO BE SOLVED: To provide an illuminating device wherein its secondary battery can be charged independently of the boosting operation of its boosting circuit in a service uninterruption of a commercial power supply and its illumination load is lit by a power feed from its secondary battery in a service interruption of the commercial power supply. SOLUTION: To a bidirectional converter circuit 10, both a transistor Q8 of a changeover element of the changeover of circuit modes and an inductor L3 are given additionally. In the service uninterruption of a commercial power supply 1, when a boosting chopper circuit 4a acting as a boosting circuit performs a boosting operation, turning off the transistor Q8 , the mode of the bidirectional converter circuit 10 is changed over to a half-bridge mode and when the boosting chopper circuit 10 stops the boosting operation, turning on the transistor Q8 , the circuit mode of the bidirectional converter circuit 10 is changed over to the mode serving as both a chopper and a half-bridge converter to charge a secondary battery 2 in each case of the presence and absence of the boosting operation.