baber/WOPTO huggingface dataset:
Patent JP-H1098010-A (JP)
Title: Formation of compound semiconductor low-contact resistance electrode
Inventor: NISHIZAWA JUNICHI
IPC: H01L21/28
Filed: 1996-09-20
Abstract: PROBLEM TO BE SOLVED: To enable forming a low-resistance ohmic contact, which is suitable for processing of a ultrahigh-speed semiconductor device using a compound semiconductor by a method, wherein the concentration of impurities, which are doped to a semiconductor contact layer coming into contact with a metal layer, is set at a concentration of a specified value or higher and a prescribed temperature or lower in a pretreatment process, prior to a deposition of the metal film set at the deposition temperature of the metal film. SOLUTION: A TEG, an AsH3 and a DETe are used by an MLE, Te is doped to a GaAs contact layer at a substrate temperature of 325 deg.C in an ultrahigh vacuum, to grow the GaAs contact layer of an impurity concentration of 1×10<19> /cc or higher on a substrate and thereafter, an Si3 N4 film is deposited on the contact layer by a plasma CVD method in the atmosphere. After the pattern of the Si3 F4 film has been formed on the contact layer, the substrate is heated up to a prescribed temperature of 300 to 480 deg.C, such as 380 deg.C, while the AsH3 is introduced in the substrate to remove a natural oxide film. After that, the temperature of the substrate is set at a prescribed metal deposition temperature, such as 380 deg.C, and an W (CO)6 is introduced in the substrate to deposit a W metal film. Thereby, a low-resistance ohmic contact can be formed on an ultrahigh-speed III-V compound semiconductor device, having a super thin multilayer structure.
Patent JP-S62109691-A (JP)
Title: Recording voice article in which book to be read is read
Inventor: HAYAKAWA TAKASHI
IPC: G10L13/00
Filed: 1985-11-08
Abstract: A recording of speech which stores in advance the text of a book directed primarily to understanding, and contains necessary insert portions consisting primarily of index portions in order to switch over conventional reading relying solely upon eyes to reading which uses also ears. When the recording is played back with a playback machine, one can read efficiently a book while listening to the speech with reference to the insert of necessary portions consisting primarily of the index portions, while advancing and stopping the movement of the recording by the ON-OFF operation of a switch, by use of an earphone or a headphone.
Patent JP-H04129210-A (JP)
Title: X-ray mask inspector
Inventor: YAMABE MASAKI
IPC: G03F1/86
Filed: 1990-09-20
Abstract: PURPOSE:To enable detection of X-ray masks with high resolution and high speed through detection of abnormality of underthickness of an absorber in addition to abnormalities such as pattern squeeze-out, pits, and cracks by changing the irradiation position of focusing points an X-ray mask under test one after another to detect the intensity of irradiation X rays at each point. CONSTITUTION:An X-ray focusing zone 2 is irradiated with X rays on the side of an X-ray transmitting substrate 22 from an X-ray generator 1, and an X-ray mask under test 5 is irradiated by their focusing. Irradiating focused X rays is transmitted or shielded by the absorber pattern 52 of the X-ray mask under test 5, so that the intensity of X rays is detected by an X-ray detector 4 through the center opening of a stage 53. The stage 53 is controlled in movement by an irradiation position changer 3, resulting in variation in the relative position of the X-ray focusing zone 2. The intensity of X rays is detected by executing detection again in a new irradiation position. This way of scanning the wafer 5 entirely allows detection of abnormality in respect to the whole by irradiation of the mask 5 with focusing X rays at each point and by detection of the intensity of X rays at each irradiation point.
Patent JP-S61130076-A (JP)
Title: Recording head pressing and releasing mechanism
Inventor: HASHIMOTO KENICHIRO
IPC: B41J25/304
Filed: 1984-11-29
Abstract: PURPOSE:To provide a recording head pressing and releasing mechanism simple in construction, low in cost, generating little noise and high in reliability, by a construction wherein a recording head is pressed against and separated from a platen through a cam driven to rotate in forward and reverse directions by a stepping motor. CONSTITUTION:When the stepping motor 28 is driven to rotate in the direction of an arrow (g) to rotate the cam 23 counterclockwise (i), a lever 12 is pushed upward against the tensile force of a spring 13 through a roller 15, and is turned in the direction of an arrow (d) to turn DOWN the head. When the motor 28 is rotated in the direction of an arrow (h) to rotate the cam 23 clockwise (j), the lever 12 is pulled downward by the tension of the spring 13, and is turned in the direction of an arrow (e) to turn UP the head. Accordingly, by rotating the motor 28 in the forward and reverse directions (g), (h), the cam 23 is rotated in the forward and reverse directions (i), (j), whereby the head is turned UP and DOWN, respectively.
Patent JP-2000080583-A (JP)
Title: Apparatus and method for metering auxiliary material to flow box of paper machine
Inventor: HEINZMANN HELMUT
IPC: D21F1/08
Filed: 1999-09-03
Abstract: PROBLEM TO BE SOLVED: To smoothly feed paper stock slurry and an additive flow into a flow box by making a metering unit for each partitioned flow fed to the upstream end region of the flow box cooperate with a metering unit for the additive. SOLUTION: The purpose of this invention is accomplished by feeding partitioned flows QL and QH in each metered state through divided pipes 29 and 30 within e.g. a division 10 formed by plurally partitioning the upstream end region of a flow box 1 into the upper reach of a paper stock-mixing region 20 situated in the upper reach of a microturbulence stimulation 34 in the flow box 1 as well as by feeding an additive flow Qad through a metering pipe 48, and by uniformly mixing the flow QL with the flow Qad at a narrowed region equipped with a valve V1 to adjust the flows QL and QH so as to form a flow QM where the flows QL, and QH are uniformly mixed in a preferred flow ratio.
Patent JP-S62111535-A (JP)
Title: Optical transmission system
Inventor: SUMIO SADAYUKI
IPC: H04B10/2557
Filed: 1985-11-11
Abstract: PURPOSE:To decrease the distortion generated in an optical transmission line and the timewise fluctuation of the distortion by always bringing the instantaneous value of a modulation current of a semiconductor laser to a threshold value or over so as to operate the laser in the single axis mode thereby bringing the modulation of the output light to a prescribed value or below. CONSTITUTION:Each output of plural modulated signal generating sources 41-4n having a different carrier frequency is fed to a synthesizing circuit 7 and a bias signal of the semiconductor laser 1 is superimposed from an AC power supply 5. An output signal of the circuit 7 and a bias current from a DC power supply 8 are given to a drive circuit, the laser 1 is driven by the drive current and its output light is sent to a photodetector 2 via an optical fiber 3. In this case, the output amplitude of the power supply 5 is set by an attenuator 6 so as to bring the instantaneous value of the modulation current of the laser 1 is always a threshold value or over and the laser 1 is operated in the single axis mode. Further, the modulation of the output light of the laser 1 by the output of the synthesizing circuit 3 is brought into 100% or below by setting the bias of the power supply 8.
Patent JP-S6383629-A (JP)
Title: Automatic measuring instrument for exhaust gas meter of automobile
Inventor: KOJIMA YOSHINORI
IPC: G01M17/00
Filed: 1986-09-27
Abstract: PURPOSE:To automate operations up to the calculation of the discharge quantity of harmful gases is compliance with Non-Methane T-HC Regulation Law (of Japan) by newly installing a solenoid valve to a sampling circuit connected to a methane analyzer and collecting the measured output of methane concn. into a controller. CONSTITUTION:A 1st sampling venturi 6 is placed at the point where the exhaust gas from a test car 2 and the outdoor air are mixed. Exhaust gases are sampled into Bags 4-6 by opening a solenoid valve A1 and closing solenoid valves A2, A3. A 2nd sampling venturi 7 is placed in an outdoor intake port to sample the outdoor air into Bags 1-3. The air in the Bags 1-3 is introduced successively into the analyzer 9 for automobile application by closing the valve A1 and opening the valve A2. The exhaust gases in the Bags 4-6 are similarly introduced into the analyzer and the CO, T-HC, and NOX in the atm. air and the exhaust gases are respectively measured. The exhaust gas concn. is, therefore, determined by subtracting the values obtd. from the Bags 1-3 from those obtd. from the Bags 4-6. On the other hand, the sampling circuit to a methane analyzer 10 and a valve A3 for selecting flow passages are newly installed and the methane concn. for the Bags 1-6 is calculated and is outputted after subtraction by the command from a controller 11.
Patent JP-H04127303-A (JP)
Title: Control method for unmanned carrying device
Inventor: MATSUSHIMA OSAMU
IPC: G05B13/02
Filed: 1990-09-19
Abstract: PURPOSE:To improve the operation rate by using data for showing a running request frequency distribution to each time zone determined experientially, and determining the number of times for running by single changing of an unmanned carrying car so as to become larger than the reference number of times of running, in the case the unprocessed quantity of a running request is large, and also, a decrease of the number of running requests is predicted. CONSTITUTION:Data for showing a running request frequency distribution to each time zone determined experientially is stored in a centralized control part 7, and the unprocessed quantity of a running request and the data for showing the running request frequency distribution are compared in the centralized control part 7. In the case the unprocessed quantity is large, and also, a decrease of the number of running requests is predicted, the number of times for running by single charging of an unmanned carrying car 1 is determined so as to become larger than the reference number of times of running, and the unmanned carrying car 1 is run along a main route 2 without executing new charging until a decrease time of the number of running requests. Accordingly, it can be run without generating trouble caused by charging deficiency. In such a way, the efficiency of the unmanned carrying device can be improved.
Patent JP-H08116119-A (JP)
Title: Optical-intensity control apparatus of semiconductor laser
Inventor: ASHIKAGA HIDEAKI
IPC: B41J2/44
Filed: 1994-10-17
Abstract: PURPOSE: To obtain a high image quality by a simple control operation by a method wherein the optical intensity of feeble emitted light is detected at a time when every semiconductor laser is turned on and off. CONSTITUTION: An optical signal is amplified according to the output of an optical- intensity detection means 20 so as to be input to an A/D converter 22. The digital output signal of the converter 22 is input to a CPU 24 via a CPU bus 23. The CPU 24 performs a prescribed arithmetic operation on the basis of the program of a ROM 26 and the image data of a RAM 25, it drives D/A converters 27 to 29, and it sets the control value of a turning-on current at a time when respective semiconductor laser rlements 14 to 16 are turned on and that of a bias current at a time when the laser elements are turned off.  Generally, when (n) pieces of laser beams are used, detection values S1 to Ss n of the opticalintensity detection, eans by which optical- intensity values P1 to Pn at their turning-on operation and optical-intensity values r1 to pn at their turning-off operation are set to possible combinations of 2<n> kinds for their tuning-on and turning-off operations are found, and the solution of simultaneous equations for an expression is found. Thereby, a high image quality can be obtained by a simple control operation.
Patent JP-2000082062-A (JP)
Title: Information providing device
Inventor: NISHIDA TAKASHI
IPC: G06Q99/00
Filed: 1998-09-04
Abstract: PROBLEM TO BE SOLVED: To provide the information providing device which can easily obtain information relating to a displayed spot. SOLUTION: The information providing device includes an input/output part 22 which displays a map image and outputs the position of an indicated point, an address book storage part 76 for storing address book data including names and zip codes, a zip-code-by-area storage part 64 which stores the zip codes and maps of areas that the zip codes correspond to, and a central control part 50 which finds the zip code of the area of the point indicated at the input/output part 22 and displays the address book data having the same zip code as the zip code.
Patent JP-H0590380-A (JP)
Title: Board conveyor for film forming apparatus
Inventor: HAMAMOTO KAZUTOSHI
IPC: H01L21/677
Filed: 1991-09-30
Abstract: PURPOSE:To suppress mixture of impurities in a vacuum vessel without using a base holder and to shorten a processing time by independently moving a board in X-, Y- and Z-axis directions when the boards are vertically mounted and conveyed. CONSTITUTION:A board conveying truck 21 is moved in an X-axis direction in a vacuum vessel 11 in a state supporting a board 15 to an arm 19 provided at a truck lifter 18. After it arrives at a film forming chamber, the lifter 18 is raised to lift the board 15 to a position higher than the height of a pawl 16 attached to a positioner 13 in the Z-axis direction. Thereafter, the positioner 13 is moved to a position in contact with the board 15 in the Y-axis direction. The lifter 18 is moved down, and the board 15 is delivered to the positioner 13. Then, the positioner 13 is pressed in contact with a heater 12 disposed at the center of the vacuum vessel to process such as independently heat only the board 15. Accordingly, mixture of impurities in the vessel can be suppressed to the minimum.
Patent JP-H0589848-A (JP)
Title: High pressure discharge lamp
Inventor: IWATO YASUHIRO
IPC: H01J61/36
Filed: 1991-09-30
Abstract: PURPOSE:To keep a light emitting tube airtightly even though the internal pressure of the tube goes up and prevent occurrence of leakage and breakage. CONSTITUTION:In a high pressure discharge lamp with at least mercury encapsulated in its light emitting tube 1, the condition of 4.5XM<1/2=theta shall be held, where M is the amount of mercury encapsulation per unit capacity in mg/cc and theta is the tangential angle in degree of the fusion joint 9 of quartz glass pieces at the sealing part. This restricts the relationship between the internal pressure of the light emitting tube and the tangential angle theta of the fusion joint in the sealing part, keeps the pressure endurance strength of the joint, and prevents the tube from leakage and breakage, and its lifetime can be held long in case the encapsulated gas pressure or vapor pressured is heightened to raise the light emission efficiency or in case the lamp load is increased for the same purpose.
Patent JP-H0593347-A (JP)
Title: Apparatus for detection cut mark of loom
Inventor: KOJIMA SHUICHI
IPC: D03D51/18
Filed: 1991-09-30
Abstract: PURPOSE:To provide a cut mark detection apparatus for loom capable of accurately detecting a cut mark without causing erroneous recognition of stain or pattern as a cut mark. CONSTITUTION:The sensitivity of a photo-sensor is checked in the 1st detection range and the sensitivity is corrected when a dark color is detected in the 1st detection range. When a dark color is detected in the 2nd detection range, it is judged whether the detected dark spot is a true cut mark CM or a stain. When it is judged as the detection of a true cut mark, the cloth wound on a roll is cut to start the exchange of the roll. The process can eliminate the trouble of the start of cloth cutting and roll exchange operation of a cloth roll even if a prescribed amount of woven cloth is not wound on the cloth roll.
Patent JP-H07102784-A (JP)
Title: Reinforcing material for building unit
Inventor: MIYASHITA HACHIRO
IPC: E04G21/24
Filed: 1993-10-07
Abstract: PURPOSE:To make it possible to mount easily components installed in a building unit, such as a facility core, and what is more, to maintain the strength of the building unit during transportation or the like. CONSTITUTION:Building unit reinforcing materials 15 are installed to a cornered part of a floor where a floor panel 12 and a wall panel 13 for a building unit 10 are to be joined. A mounting unit 15b of one end is fixed with a floor joint material 12b with wooden screws 17 while a mounting unit 15b on the other end is removably fixed with a post material 14 of the wall panel 13 with the wooden screws 17. A reinforcing material main body 15 and the floor panel 12 and the wall panel 13 are installed in such a fashion that they may represent the shape of a right-angled isosceles triangle.
Patent JP-H1094539-A (JP)
Title: Stereo perspective corresponding x-ray imaging apparatus
Inventor: OE TAKASHI
IPC: H05G1/64
Filed: 1996-09-24
Abstract: PROBLEM TO BE SOLVED: To facilitate stereo-perspective to a surgical operation by scatteringly changing strength of ezposure of X-rays during stereo-perspective. SOLUTION: When closed intramedullary nail fixing technique is performed, in the step 2, while perspective is performed under an X-ray condition where good contrast is provided on a bone and the bone is well visible, a position for piercing of a screw is determined and when it is shifted to the step 3, the X-ray condition is changed to a condition where contrast is provided to a transverse hole opened in an intramedullary nail and the transverse hole can be well confirmed. Namely, when the step 2 is shifted to the step 3, a mode button 17 is pushed twice and a setting button 15 is pushed once. Tube electric current and tube voltage are respectively raised thereby. When it is returned back to the step 3, the mode button 19 is pushed twice and the setting button is pushed once. The tube current and the tube voltage are respectively returned to its original condition.  By changing the tube current and the tube voltage in scattered way by using mode buttons 17 and 19 like this, it is possible to shift between steps by a few operational times.
Patent JP-H07102888-A (JP)
Title: Tail seal change method and its device
Inventor: KAINUMA NORIO
IPC: E21D11/00
Filed: 1993-10-07
Abstract: PURPOSE:To change the front side and the rear side tail seals in an excavator without extending the length of the excavator, as well as to realize a low cost by reducing the term of process. CONSTITUTION:On the outer periphery of a tail frame 1 having tail seals 7 and 8 connecting to a segment 5, an outer tube ring 11 is superposed slidable in the longitudinal direction of the excavation to cover the frame 6. At the rear side of the outer tube ring 11 in the excavating direction, a water cut-off filler injection pipe 12 to transfer a water cut-off filler B is proivded, and it advances the tail frame 6 in the excavating direction while the position of the outer tube ring 11 is fixed to the rear side, so as to release the tail seals 7 and 8 in the tail frame 6 in the excavator 23 at the front side of the segment 5. In the advancing time of the tail frame 6, the water cut-off filler B is injected into the rear side of the tail seals 7 and 8, and seal member 21 which can be extended and contracted freely is placed between the outer tube ring 11 and the segment 5 at the inner side of the ring 11. After the tail seals 7 and 8 released in the excavator 23 are changed, the outer tube ring 11 is pulled in the excavating direction while the position of the tail frame 6 is being fixed.
Patent JP-S60142365-A (JP)
Title: Two-color developing device
Inventor: KAMEYAMA TOMOHIRO
IPC: G03G15/01
Filed: 1983-12-28
Abstract: PURPOSE:To separate and recover black toner mixed with a chromatic color developer for recycling by charging toner particles used by the 1st and the 2nd developing devices electrostatically to the opposite polarities, and providing a convective discharge port at the upper part of the 2nd developing device. CONSTITUTION:The 1st electrostatic latent image is developed to form a black image and the 2nd electrostatic latent image is developed to form a red image; and the dichroic toner image is thus formed on the surface of a photosensitive body 1, adjusted by a polarity adjusting device, and then transferred onto a form by a transfer device. When the image is developed with red toner 46 in the 2nd color, black toner 38 mixed in the 2nd developing device 33 as a lower stage is hardly mixed with the developer of the lower stage. Further, when the magnet roll 41 contained in a nonmagnetic sleeve 40 is rotated, only black toner 38 is suspended in the air. Then it is attracted by a conductive roll 12 in the 1st developing device as an upper stage which is applied with a bias and collected and recovered for recycling.
Patent JP-H03115885-A (JP)
Title: Precision approach radar
Inventor: YAMAGISHI HIROMITSU
IPC: G01S13/66
Filed: 1989-09-29
Abstract: PURPOSE:To obtain a precision approach radar not conducting beam control type tracking for reception data other than data on an airplane, by transmitting a concentrated beam onto the position of the reception data selected by a search period tracking processing element. CONSTITUTION:A search period tracking processing element 18 takes positional correlation between reception data from a fresh target checker 14 and data of a search period track file 16 and extracts only a target which is found in an actual range of speed of an airplane and of which the direction of movement is in the direction of approach of a landing strip provided with a precision approach radar, through a correlation filter comprising filters 20 of movement direction and movement distance for correlation. Then, tracking is started with a beam directed to the direction of a target airplane, a tracking reception signal is inputted to a beam control type tracking processing element 24 and the tracking is updated repeatedly. As the result, it is avoided that the maximum number of tracked and processed planes is reached by tracking of many weather clutters and that a real airplane is not tracked, in bad weather in particular.
Patent JP-S62129926-A (JP)
Title: Thin film type vertical magnetic head
Inventor: YOSHIMORI HIROYUKI
IPC: G11B5/31
Filed: 1985-11-12
Abstract: PURPOSE:To shield a vertical magnetic head from an external magnetic field and to evade effectively a drop in recording and reproduction level by providing a main magnetic pole thin film and a conductor which cross-links with it on a head substrate fitted in the recessed part of a magnetic block having high magnetic permeability. CONSTITUTION:The main magnetic pole 11, a circulation magnetic pole 13, etc., are formed on the top surface of the head substrate 14 fitted in the recessed part 15a of a shield magnetic substrate 15 made of a magnetic material having high magnetic permeability. A nonmagnetic protection member 17 with a step (d) is fitted in the recessed part of the shield magnetic substrate 18 and stacked and adhered to the substrate 15 to protect the main magnetic pole. When a recording medium 4 runs on the front end surface of this vertical magnetic head 10 as shown by an arrow X, an external magnetic field 22 even if applied as shown by an arrow Y passes through the substrates 15 and 18 and exits from a magnetic member 19 to the air, so that the external magnetic field is separate completely from a recording magnetic field 21. Thus, the head is shielded from the external magnetic field to prevent a fall in recording and reproduction level.