baber/WOPTO huggingface dataset:
Patent JP-S61104680-A (JP)
Title: Manufacture of led
Inventor: NAKAMURA MASARU
IPC: H01L31/12
Filed: 1984-10-27
Abstract: PURPOSE:To enable the inexpensive production of LEDs of high luminous efficiency by using organic metallic vapor phase growth 1 (MOCVD) for the crystal growth of a hetero junction structure. CONSTITUTION:An N-GaAs buffer layer 12, an N-Ga0.65Al0.35As first clad layer 13, a P-GaAs active layer 14, and a P-Ga0.65Al0.35As second clad layer 15 are successively grown on an N-GaAs substrate 11 by MOCVD. After formation of an ohmic electrode 16, an SiO2 film 17 is formed, and a P-side electrode 18 is formed. Thereafter, an N-side electrode 19 is formed by polishing the back of the substrate 11, and an Au layer 20 is formed on the electrode 18. Next, a photo output lead-out window 21 is formed by etching away the substrate 11 and the buffer layer 12 to the depth of the clad layer 13. The LED produced by MOCVD generates no sag on the surface of the clad layer 13 and can improve the efficiency of coupling with the photo buffer. Besides, the wafer of large aperture and excellent uniformity can be obtained and is effective for mass production.
Patent JP-S6469308-A (JP)
Title: Method for filling foaming agent in structural member with enclosed section
Inventor: MATSUO MASAYOSHI
IPC: B62D25/20
Filed: 1987-09-09
Abstract: PURPOSE:To produce the effective reinforcing effect by filling foaming agent uniformly, densely and without void in the space part of a structural member with enclosed section by a method wherein partition plates are shifted in the structural member with enclosed section in the directions so as to enlarge the space in response to the foamed amount of the foaming agent. CONSTITUTION:Two sets of partition plate 4, each set of which consists of a fixed plate 4a fixed to the interior of a structural member 1a with enclosed section and a moving plate 4c connecting to the fixed plate 4a through a spring 4b, are arranged in the structural member 1a with enclosed section. The two moving plates 4c and 4c are arranged so as to pinch a space part 5 with center at its corner. A foaming agent pouring hole 5a is bored on the wall surface of the space part 5 so as to pour the certain amount of liquid foaming agent 6 in the space part 5. After elapse of a certain time, foaming is done so as to increase the volume of the foaming agent 6. With volumetric increase of the agent, the moving plates 4c are shifted against the forces of the springs in the directions indicated with the arrows A so as to enlarge the volume of the space part 5, resulting in expanding the foaming agent 6 without void in the space part 5 in order to uniformly fill the part 5. Further, by arranging the springs 4b with a certain spring constant, a fixed filling density can be obtained at all times, even when the scattering in amounts of poured foaming agent is present.
Patent JP-H0273583-A (JP)
Title: Optical memory disk hub
Inventor: SUZUKI NAOYUKI
IPC: G11B7/24097
Filed: 1988-09-09
Abstract: PURPOSE:To prevent the generation of dimensional change and abrasion dust by mixing specific thermoplastic resin with magnetic substance powder and/or magnetic substance fiber, polyolefine resin and/or hot-melt fluororesin and molding it. CONSTITUTION:The thermoplastic resin of 7-55wt.% excluding the polyolefine resin and the hot-melt fluororesin, the magnetic substance powder and/or at least one kind of the magnetic substance fiber of 45-93wt.%, the polyolefine resin and/or at least one kind of the hot-melt fluororesin of 0.5-20wt.% against the thermoplastic resin are mixed and molded. Thus, the generation of the dimensional change and the abrasion dust due to abrasion can be prevented by the molding and a title material can be stably used over the long period of time without the generation of rust.
Patent JP-S6470027-A (JP)
Title: Rotation control apparatus of ct apparatus for head
Inventor: MORISOTO SHIYOUJI
IPC: A61B6/03
Filed: 1987-09-11
Abstract: PURPOSE:To secure normal operation by preventing the cumulated error of an angle of rotation, by returning a CT scanner to the set origin of a scanning operation start position by detecting the absolute position of the CT scanner by the collation of the output signal of a limit switch with the content of a counter. CONSTITUTION:In a CT scanner, when a limit switch LSW 1 or LSW 2 is pushed by the striker 51 of a CT scanner rotating plate 5, a scanning operation start signal S is inputted to the CPU 11 of a control apparatus 1. The CPU 11 drives a DC motor 2 on the basis of said signal S and the CT scanner rotating plate 5 is rotationally moved in a direction (a) or (b) through a speed reducer. The absolute position of the striker 51 of the CT scanner rotating plate 5 can be detected by the collation of the signal of the LSW 1 with the content of a counter 17 and the start position of scanning in the direction (a) in the LSW 1 can be initially set each time. Even when the CT scanner rotating plate 5 is stopped at an erroneous position, said CT scanner rotating plate 5 can be stopped at a normal position by initial setting and the cumulated error of an angle of rotation caused by the repetition of the scanning operation of the CT scanner in the directions (a), (b) can be removed.
Patent JP-S6285557-A (JP)
Title: Electronic copying device
Inventor: SATO MASA
IPC: H04N1/00
Filed: 1985-10-11
Abstract: PURPOSE:To improve the operability of an electronic copying device by storing the prescribed picture information and synthesizing this stored picture information with the picture information read by a reading means for output to perform the recording without writing successively the regular items. CONSTITUTION:A scanner motor 51 is driven by a system controller 10 of an electronic copying device and a scanner incorporating a CCD 53 is set at a reading position. While the CCD 53 is scanned by a CCD controller 54 and the picture signal 1 read by the CCD 53 is binary coded 55. Then the picture signal 2 is applied to a picture signal synthesizer 9. At the same time, the picture information is stored previously in a ROM cassette 2 and the shift position of the scanner and the reading position of the CCD 53 given from the controller 10 are given to a pattern generator 21. Then the generator 21 delivers the picture signals within the cassette 2 corresponding to the positions of the scanner and the CCD 53 and applies them to the synthesizer 9. These picture signals are synthesized with the picture signals read by the synthesizer 9 and these synthesized picture signals are printed by a printer 6. In such a way, the operability of an electronic copying device is improved.
Patent JP-S6288517-A (JP)
Title: Wire electrode processing apparatus for wire-cut electric discharge machine
Inventor: MINAMIBATA TOMONOBU
IPC: B23H7/08
Filed: 1985-10-11
Abstract: PURPOSE:To obtain a wire electrode processing apparatus with which the working precision can be improved in comparison with the conventional by installing an uneven part applying means for applying uneveness onto the surface of the working electrode between a wire bobbin and a workpiece. CONSTITUTION:During the electric discharge machining, a wire electrode W shifts upward at a prescribed speed, and uneven rollers 21 and 22 are revolved in synchronization with the shift. Therefore, when the electrode W having unevenness passes through a water guide 42, working liquid contacts the surface of the electrode W, and the working liquid passes through an uneven part C, and the vibration of the electrode W is absorbed by the uneven part C. Since the vibration of the electrode W is reduced markedly, the reduction of working precision due to vibration is suppressed, and since the electrode W is not vibrated, the center can be correctly set. Further, since the uneven part C pushes the working liquid during the passing of the electrode W in a work 60, a sufficient quantity of the working liquid can be supplied onto the work 60, and the working precision can be improved.
Patent JP-S6469457-A (JP)
Title: Paper sheet handling device
Inventor: ISHIGURO AKITO
IPC: B65H31/00
Filed: 1987-09-11
Abstract: PURPOSE:To shorten access time necessary for trading by constituting a paper sheet handling device such that proper number of sheets in a second space is passed to a first hopper at inspecting section and a carrying robot returns the paper sheets in a second hopper to a first space section as a bundle only when deposit trading is made. CONSTITUTION:A carrying robot 5 passes one bundle of paper sheets in a first space section to a second hopper 32 at inspecting section 3 while passes proper number of the other paper sheets in a second space section to a first hopper 31 at the inspecting section 3. In case of payment, the inspecting section 3 inspects/counts requested number of paper sheets taken into the first and second hoppers 31, 32 and the carrying robot 5 only passes the counted paper sheets to an inlet/outlet port 1 thus simplifying actual payment operation. Consequently, access time necessary for payment can be surely shortened.
Patent JP-2001049700-A (JP)
Title: Hydraulic system for tractor mount type backhoe
Inventor: MIYAZAKI EIJI
IPC: E02F9/22
Filed: 1999-08-10
Abstract: PROBLEM TO BE SOLVED: To shut off hydraulic pressure supply to a lift arm during the mounting of a backhoe and prevent interference with the lift arm by changing over and supplying the hydraulic pressure of a main hydraulic pump to the lift arm and the backhoe by a changeover spool. SOLUTION: In a backhoe mounted detachably on a tractor, hydraulic pressure is fed through an exclusive circuit 37A and a control valve 29 by an exclusive hydraulic pump to a swing cylinder 23, and fed through each control valve 30-34 via a directional control valve 39 and a control valve 40 by a main hydraulic pump 36 to other cylinders 24-27. A changeover spool is provided on the control valve 40 to change over and feed hydraulic pressure to a hydraulic device 10. Thereby in the case where a backhoe is mounted, hydraulic pressure feed is shut off to the hydraulic device 10, the backhoe is arranged close to a tractor, the front and rear weight balance of the tractor is improved, and entire length can be shortened.
Patent JP-H0971355-A (JP)
Title: Image formation device
Inventor: AWAYA TETSUO
IPC: B65H29/16
Filed: 1995-09-04
Abstract: PROBLEM TO BE SOLVED: To facilitate treatment of a jammed sheet causing jam at a transferring part between a sensitizing drum and a transfer belt electric device. SOLUTION: Side regulating members 17A, 17B are free to revolve in the vertical direction around support shafts 31A, 31B as their center, and they are devised to be driven to open and close by solenoids 32A, 32B. When the solenoids 32A, 32B are put on, plungers 34A, 34B extend and knock the erected side regulating members 17A, 17B down roughly in a horizontal state. When an operator revolves a transfer belt electric device 7 and a carrier belt 8 integrated by a frame member to treat a jammed sheet causing jam between a sensitizing drum 6 and the transfer belt electric device 7, the solenoids 32A, 32B are put on, and the side regulating members 17A, 17B are knocked down roughly in the horizontal state. Consequently, the carrier belt 8 can be descended until it approaches a sheet loading surface 16A of an intermediate tray 16 so that a jam treatment can take a wide space.
Patent JP-H04109780-A (JP)
Title: Video library system
Inventor: NAKANO HIROTAKA
IPC: H04N5/91
Filed: 1990-08-30
Abstract: PURPOSE:To retrieve a desired scene immediately by using a channel number and index information representing a specific position in series of information belonging to the said channel number by the user so as to retrieve video audio information (program). CONSTITUTION:When a video library system is operated, at first the user enters a channel number and a time (when series of information belonging to the said channel number is timewise recorded) or index information representing a specific position in the said series of information from a keyboard (3-1-2). The said channel number and the time or index information are inputted to a control section (1-1) through a transmission means 2, an input buffer (1-4-3) and a control line (1-3). The control section (1-1) sends a message such as 'Just moment please' to a frame memory (1-4-2) through the control line (1-3). The said message is sent to a video audio monitor (3-1-1) through a switch (1-4-4) and the transmission means 2 and the user recognizes the start of retrieval.
Patent JP-H1068577-A (JP)
Title: Refrigerator
Inventor: YOKOYAMA HITOSHI
IPC: F25D23/00
Filed: 1997-08-22
Abstract: PROBLEM TO BE SOLVED: To arrange a refrigerating chamber, a vegetable chamber and a freezing chamber in optimum operation areas in accordance with the order of frequency in use, and particularly improve the storage characteristic of the refrigerating chamber. SOLUTION: A refrigerator comprises a storage chamber 100 with an opening and closing door and storage chambers 200, 300 and 400 with three stages of drawer doors below the storage chamber with the opening and closing door. A compressor 502 is provided in the rear part of the storage chamber with the drawer door in the lower stage. A heat exchanger 504 is provided in the rear part of the storage chamber with the drawer door in the intermediate stage. A blower 506 and a cold air distributor 508 are provided in the rear part of the storage chamber with the drawer door in the upper stage. A partition plate 70 having a heat insulating material is provided between the storage chamber with the drawer door of the upper stage and the storage chamber with the drawer door of the intermediate stage.  The storage chamber with the opening and closing door is used as a refrigerating chamber, the storage chamber with the drawer door of the upper stage as a vegetable chamber and the storage chamber with the drawer door of the intermediate stage as a freezing chamber.
Patent JP-H0972559-A (JP)
Title: Heater for bath room
Inventor: YADA HAJIME
IPC: F24D15/00
Filed: 1995-09-04
Abstract: PROBLEM TO BE SOLVED: To remove cold radiation from a bath room wall surface by flowing heating warm air supplied to a bath room along a wall surface of the bath room. SOLUTION: Exhaust air in a bath room 2 passes through an air supply passage from a suction hole and is taken into a fan as indicated by an arrow 31, and is exhausted from an exhaust pipe as indicated by an arrow 32, and is further heat exchanged and heated in a waste heat exchange unit 5 using waste heat from a hot water supplier 3 as a heat source. The amount of circulation of exhaust air is regulated by an exhaust air adjusting valve 10 disposed below the waste heat exchange unit 5 (exhaust not circulated is exhausted to the outside through a vent cap 25), and the heated exhaust passes through the air supply pipe as indicated by an arrow 34 and is exhausted from an outlet in the direction along a ceiling surface as indicated by an arrow 33.  Further, the heated exhaust is lowered along the side wall of the bath room 2, and thereafter rises the central part and is exhausted from the suction hole. Hereby, wall surface temperature of the bath room 2 is raised and hence cold radiation from the wall surface is removed.
Patent JP-2000059604-A (JP)
Title: Method for attaching information to image and method for extracting information from image
Inventor: YOSHIURA YUTAKA
IPC: H04N1/32
Filed: 1998-08-11
Abstract: PROBLEM TO BE SOLVED: To attach information to image data while keeping the visibility of images indicated by the image data to a certain degree. SOLUTION: An information insertion part 114 changes the image size of a graphic mark 123 so as to turn the number of vertical and horizontal pixels to 32×n+a respectively. In this case, (a) is a decimal number indicated by the bit string of 5 bits of insertion information 122 to be buried and (n) is a numerical value for making 32×n+a closest to the original image size (128, in this case) of the graphic mark 123. Also, the respective pixel values of the graphic mark 123 are changed so as to make the average value/contrast of the pixel values of the entire graphic mark 123 to 32×n+a. In this case, (a) is the decimal number indicated by the bit string of 5 bits to be buried and (n) is the numerical value for making 32×n+a closest to the average value/ contrast of the original pixel values of the entire graphic mark 123.
Patent JP-S6379799-A (JP)
Title: Production of potassium titanate fiber
Inventor: TAJIMA MOTOFUMI
IPC: C30B1/04
Filed: 1986-09-24
Abstract: PURPOSE:To economically obtain the title potassium titanate fiber having fine fiber diameter and excellent homogeneity by mixing a mixture of a titanium compd. and a network forming ion with a potassium compd. in a specified ratio, heating and melting the obtained mixture, and quenching and vitrifying the melt to obtain an amorphous solid which is then heat-treated. CONSTITUTION:Potassium tetratitanate fiber or the mixed fiber of potassium tetratitanate and potassium hexatitanate is obtained by the following method. Namely, a mixture obtained by mixing a titanium compd. forming titanium dioxide (TiO2) on heating and a network forming ion (N, W, F) in 0.05-0.3 molar ratio of (N, W, F)/(N, W, F + TiO2) is mixed with a potassium compd. forming potassium oxide (K2O) on heating in 2.5-5 molar ratio of (TiO2 + N, W, F)/K2O. The obtained mixture is heated and melted, and the melt is then quenched and vitrified. The obtained amorphous solid is subsequently heat-treated.
Patent JP-H11121748-A (JP)
Title: Semiconductor substrate and semiconductor element
Inventor: KITAHATA MAKOTO
IPC: H01L29/161
Filed: 1998-08-11
Abstract: PROBLEM TO BE SOLVED: To make it possible to obtain a semiconductor element, which is high in breakdown voltage and is large also in electric capacity, by a method wherein a semiconductor substrate comprises a silicon thin film crystal grown on the surface of an electrically conductive silicon carbide crystal. SOLUTION: This semiconductor substrate 1 is formed by crystal growing a silicon thin film 13 on the surface of a silicon carbide(SiC) substrate 12. The SiC substrate 12 consists of a 6H-SiC single crystal and the surface of the substrate 12 is formed in such a way that the surface is formed into an offcut surface of 4 deg. of the face (0001). Moreover, the Si thin film 13 also has the same offcut surface as the above offcut surface) and the Si thin film 13 is formed of a single crystal which can form a MOS transistor or the like.  Owing to this, the surface of the substrate 12 hating the offcut surface of the 4 deg. of the face (0001) is cleaned, the substrate 12 is introduced in an MBE growth chamber and with the substrate 12 heated at 800 deg.C or thereabouts, for example, at the degree of vacuum of 10<-8> Torr or thereabouts, for example, an Si film is fed from a k-cell to the substrate 12. Thereby, the thin film 13 is heteroepitaxially grown.
Patent JP-H0684109-A (JP)
Title: Audio signal circuit of vtr apparatus
Inventor: TAKIMACHI NOBORU
IPC: G10K15/04
Filed: 1992-08-26
Abstract: PURPOSE:To record/reproduce the performance of singing to an accompaniment recorded deep in a video tape. CONSTITUTION:A sound input switching device 11 is interposed at the input side of a recording/reproducing circuit 12 of a fixed sound head 12a. While the whole of the apparatus is set in a playback mode, when the recording/ reproducing circuit 12 is controlled and selected to the recording side, and the sound input switching device 11 is switched to an auxiliary mixer circuit 16, the accompanying music reproduced by a rotary sound head 13a and audio signals Sd1, Sd2 from a microphone can be recorded via the fixed audio head 12a. If the recording/reproducing circuit 12 is controlled and selected to the playback side, the recorded singing content with the accompanying music can be reproduced.
Patent JP-H0677188-A (JP)
Title: Chamfering apparatus of semiconductor wafer
Inventor: ENDO TOSHIYA
IPC: H01L21/304
Filed: 1992-08-26
Abstract: PURPOSE:To reduce the replacement frequency of a jig and to easily obtain a smooth face in the chamfering operation of a wafer. CONSTITUTION:Many 6-inch-diameter silicon wafers 8 for semiconductor use are sandwiches between, and held by, holding utensils 1, 2, they are turned at the number of revolutions of 100r.p.m., a brush 10 which is made of nylon and which contains abrasive grains is used, water which contains 20wt.% of abrasive grains in #2000 is supplied from a nozzle 9 as a polishing slurry, and the wafers 8 are chamfered.
Patent JP-S60117846-A (JP)
Title: Data transmission system
Inventor: MACHINO KATSUYUKI
IPC: H04L12/00
Filed: 1983-11-29
Abstract: PURPOSE:To couple various devices through a single bus by applying bus competition with a simple packet ahead a data and transmitting the data between external devices in a free data from after a link is established. CONSTITUTION:Suppose that a data is transmitted from a serial transmitter 13 to a serial transmitter 14, a packet 22 is transmitted from a controller 15, an ACK 23 is transmitted from a controller 16 and a data 24 is transmitted from the transmitter 13. Then the data 24 is transmitted directly to the transmitter 14 via the controller 16 and the modification or the like of the data form is not applied. When the 3rd party observes the data flow, since the data 22 is apart from the packet 21 by a required minimum packet interval Tp or over, it is discriminated as a packet and it is known that the packet is not addressed to itself throgh the decoding. Since the ACK(NAK) 23 and the data 24 are not apart from the preceding data string respectively from the Tp or over, they are discriminated that they are not packets and skipped and the transmission of the next packet is inhibited for the time.
Patent JP-H0675635-A (JP)
Title: Driving circuit for ac servo motor
Inventor: NAKAJIMA AKIO
IPC: G05D3/12
Filed: 1992-08-26
Abstract: PURPOSE:To provide the driving circuit for an AC servo motor which easily varies function data and varies the data into an optimum waveform at the start of operation or during the operation according to the motion of a motor. CONSTITUTION:A position counter 1 counts the rotational position of the motor 5 and supplies its count signal as an address signal to a RAM 7. The RAM 7 supplies the waveform data to a DA converter 3 according to the count output of the position counter 1 and converts them into an analog signal and an amplifier 4 amplifies the analog signal to drive the motor 5. The waveform data in the RAM 7 are rewritten by a CPU 8 into optimum waveform data at the start of the operation or during the operation.
Patent JP-2000059312-A (JP)
Title: Optical wavelength multiplex transmitter
Inventor: HARANO HIROSHI
IPC: H04B10/296
Filed: 1998-08-12
Abstract: PROBLEM TO BE SOLVED: To provide the optical wavelength multiplex transmitter that optimally keeps a gain of an optical fiber amplifier independently of fluctuation in input power of an external light and prevents deterioration in an optical signal automatically. SOLUTION: A photocoupler 12 branches a part of an output of an optical variable attenuator 11, outputs one signal to an optical fiber amplifier 13 and the other signal to a photodetector 14. The optical fiber amplifier 13 amplifies power of the input signal into optical power in response to wavelength information received externally. The photodetector 14 detects the optical power of the input signal. A control circuit 15 adjusts the optical variable attenuator 11 so that the optical fiber amplifier 13 is operated at an optimum gain based on the optical power detected by the photodetector 14 and the external wavelength information.