baber/WOPTO huggingface dataset:
Patent JP-S55140271-A (JP)
Title: Manufacture of mis transistor
Inventor: TANIGAKI YUKIO
IPC: H01L29/49
Filed: 1979-04-20
Abstract: PURPOSE:To reduce the overlapping area of a gate electrode between source and drain regions in a MIS transistor by forming a fault structure on a gate electrode by utilizing the difference of etching speed between a high melting point metal and a polycrystalline silicon when forming the gate electrode and forming the source and drain regions with the fault structure as a mask. CONSTITUTION:A thick field SiO2 film 2 is formed on the periphery of a p-type silicon substrate 1, and a thin gate SiO2 film 3 is coated on the surface of an element active region surrounded by the film 2. Then, a low resistive polycrystalline silicon layer 4 having n-type impurity, an Mo layer 5 of high melting point metal and a polycrystalline silicon layer 6 are laminated on the entire surface, and a gate electrode pattern and a wiring pattern are formed on the film 3 so that only the layer 5 is extended on the film 3 and only the layer 5a is extended on the layer 2 by a plasma etching using Freon gas. Thereafter, with the electrode pattern as a mask an n-type ion implantation layer 20 is formed in the active region, heat treated, and source and drain region 9 and 10 are formed thereon. Then, the extended portions of the layers 5, 5a are removed, and a PSG film 8 is coated on the entire surface thereof.
Patent JP-S57161666-A (JP)
Title: Circuit for detecting interval of signal inversion
Inventor: KAZUTOMO SHIGEAKI
IPC: G11B20/14
Filed: 1981-03-31
Abstract: PURPOSE:To enhance the detecting sensitivity, in a circuit wherein clock pulses whose frequency is higher than that of an input signal are counted and the interval between the signal inversions is detected, by using the N number of the clock pulses wherein the clock pulses are delayed at every 1/N of one clock cycle. CONSTITUTION:The clock CP is supplied directly to a counter 3D, to a counter 3C through a delay circuit 41, to a counter 3B through a delay circuit 42, and also to a counter 3A through a delay circuit 43. The amount of delay tau1 of the circuits 41-43 corresponds to tau0/N, where the number of counters is N, and tau0 is one cycle of the CP. The number of the clock pulses included in the time period of inversion of the input signal is counted in the counters 3D-3A by N, e.g. 4 clock pulses CPD-CPA which are formed in this way. The outputs of said counters 3D-3A are added and averaged. The voltage, which is converted in correspondence with the approximate average value is obtained across a capacitor 21, and the interval between the inversions of the input signals is detected.
Patent JP-H05216358-A (JP)
Title: Heater driving device for fixing unit
Inventor: KIMIZUKA JUNICHI
IPC: G03G15/20
Filed: 1992-02-04
Abstract: PURPOSE:To prevent a heater surface temperature or a fixing unit temperature from overshooting or rippling, and the heater surface temperature or the fixing unit temperature from dropping at the time of lowering a voltage, and to maintain stable fixation by supplying constant electric power to a heater regardless of fluctuations in the voltage of an AC power source, and always keeping the power consumption of the heater constant, in an image-thermal fixing unit of a recorder. CONSTITUTION:This heater driving device is for the image-thermal fixing unit 4 of the image recorder, and provided with a means 13 rectifying the flow of the AC power source 11, a switching means 16 interrupting the output of the rectifying means 13, and a means 17 executing control so that the average value of the output voltage of the switching means 16 becomes almost constant, and supplying power to a fixing unit heater 4b.
Patent JP-H11252064-A (JP)
Title: Scrambling device, scramble cancellation device and recording medium
Inventor: NAKAMURA SHINICHI
IPC: H04N21/4405
Filed: 1998-02-27
Abstract: PROBLEM TO BE SOLVED: To provide a scrambling device and a scramble cancellation device which do not require a long time for embedding and detecting a scramble key while embedding it safely. SOLUTION: A scrambling device 1 has a PN1n selector 3 which selects a signal PN1l out of a prescribed number of pseudo random signals by means of a scramble key (n), a spectrum shaper 5, an adder 7 which adds an audio signal to the signal PN1l that has undergone spectrum shaping, a PN2n generator 9 which generates a pseudo random signal PN2n, and a scrambling circuit 11 which scrambles the audio signal. A scramble cancellation device 31 has a PN1n detector 33 which detects the signal PN1n that is embedded in an input data signal and outputs the key (n), a PN2n generator 35 which generates a signal PN2n based on the key (n), and a descrambling circuit 37 which cancels the scramble based on the signal PN2n.
Patent JP-S54139708-A (JP)
Title: Recorder-reproducer
Inventor: MATSUSHIMA KOUJI
IPC: G11B5/02
Filed: 1978-04-21
Abstract: PURPOSE: To improve the quality of follow-recording by providing a delay circuit and correcting the time lag of the signal associated to the distance between a playback head and a recording head.  
     CONSTITUTION: The first signal of a magetic tape 8 having beforehand been recorded is reproduced with a playback head 7a and while this is being monitored, the second signal is recorded in the tape 8 by a recording head 6 through a delay circuit 4 from input terminal 1. Since the abovementioned playback heat, 7a and recording head 6 are away at a certain distance a time delay occurs between the both signals. Here, the both signals having been recorded in the tape 8 are picked up with the playback head 7b provided next and are reproduced via reproducer. While the reproduced sounds are being monitored, the delay circuit 4 is so adjusted than there is no more time lag of both reproduced sounds. The adjustment and correction of the time lag of the pre-recorded signal and the follow- recording signal in this way enables good recording and reproducing to be performed. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H09218334-A (JP)
Title: Variable focus camera
Inventor: IKEDA MASAYUKI
IPC: G02B7/04
Filed: 1996-02-09
Abstract: PROBLEM TO BE SOLVED: To perform focusing at many variable power positions without lowering the strength of a cam barrel by guiding a lens unit by combining a key groove formed on a key ring integrated with the cam barrel and a cam groove formed on the cam barrel relatively turned to the key ring. SOLUTION: The cam barrel 2 is provided with three cam grooves for driving a rear group lens 9 on its inner peripheral surface, and the tip of a dowel 10 penetrates to fit in the cam groove. A 2nd moving frame 5 having cylindrical shape is provided with a helicoid 14 at a part of its outer periphery and screwed to a helicoid 13 on the inner periphery of the cam barrel 2. The 2nd moving frame 5 is provided with a front frame 16 and an inner frame 17 holding a front group lens 7 and a shutter unit 8. Furthermore, it is provided with a projection 19 fit in two guide grooves 18 and 18 of the key ring 6 on its inner peripheral part, and the key ring 6 is provided with three key grooves for driving the lens 9. Then, the dowel 10 penatrates the respective grooves and is moved along the key grooves so as to guide the lens unit 9.  Thus, the number of switching steps is increased without making the cam groove of the cam barrel longer.
Patent JP-H10245389-A (JP)
Title: New antiviral active substance
Inventor: KIN ZAIMAN
IPC: A61K35/64
Filed: 1997-03-03
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new substance having porphyrin-like skeleton and useful as a therapeutic agent, etc., for viral infectious diseases having antiviral activity to coat virus such as AIDS virus or herpes virus by isolating and purifying from excrement, etc., of silkworm. SOLUTION: This new compound comprises porphyrins having the following physicochemical properties: molecular weight, about 530 [FAB-MS; m/zc 144]; absorption wavelength spectrum λmax (CH3 COCH3 ), 408 and 663(nm); solubility, readily soluble in chloroform, slightly soluble in ethanol and dimethylsulfoxide and insoluble in water; color reaction, positive in iodine vapor reaction and negative in molybdenum reagent reaction, anthrone reagent reaction, naphthol reagent reaction, ninhydrin reagent reaction and sulfuric acid-acetic acid reagent reaction, etc. The compound has an antiviral activity to coat virus such as AIDS virus, herpes virus or hemagglutinating virus of Japan and is useful as a therapeutic agent for infectious diseases, etc.  The substance is obtained by isolating and purifying by means of fractional precipitation, chromatography, TLC, etc., from excrement of silkworm.
Patent JP-H05246054-A (JP)
Title: Thermal transfer recording apparatus
Inventor: NAKANO TETSUO
IPC: B41J11/02
Filed: 1992-03-05
Abstract: PURPOSE:To reduce the width of the substrate of a thermal head and to miniaturize the thermal head and a thermal transfer recording apparatus by forming the contact surface with recording paper of a platen as a flat surface or a surface having a curvature and feeding the recording paper so as to slide the same on the platen during transfer recording. CONSTITUTION:A platen 101 consists of a sliding layer 502, an elastomer layer 503 and a rigid layer 504 from the surface thereof and has a semi-cylindrical cross-sectional shape and a surface having a curvature and also has a size obtaining sufficient contact pressure during transfer recording even when a thermal head comes into contact with the platen under pressure so as to be slightly shifted before and behind. After recording paper 106 and ink paper 105 are set to an initial position, the thermal head 102 is brought into contact with the platen 101 under pressure to hold the recording paper 106 and the ink paper 105 and a drive roller 103 is fed over a minute distance in the direction shown by an arrow A to remove the slackening of the recording paper to perform thermal transfer recording. The drive roller 103 feeds the recording paper 106 at a predetermined speed during thermal transfer recording operation and the recording paper 106 and the ink paper 105 are slid between the thermal head 102 and the sliding layer 502 of the platen 101 to perform thermal transfer.
Patent JP-H02227867-A (JP)
Title: Pad device for magnetic head
Inventor: HARADA SHINICHI
IPC: G11B17/34
Filed: 1989-02-28
Abstract: PURPOSE:To facilitate the incorporation and the replacement of a magnetic head and, simultaneously, to reduce a cost by providing a notch part to expose a head or head device in the position of the downstream side of the magnetic head. CONSTITUTION:The pad device is constituted by removing a half of the downstream side in the traveling direction X of a recording medium 1. Namely, a base block 10A is a semi-circular block, it is disposed on the upstream side, partially arc semicircular inner ring 2b and outer ring 2a are projectingly formed on the medium opposed surface of the upper surface, and a semi-circular ring recessed groove part 2c is formed between both rings 2a and 2b. In the central part of the semi-circular inner ring 2b, a hole 2d for attaching a head where a magnetic head 9 to be fitted in is half exposed at the downstream side, is provided penetratingly and vertically. Thus, the fitting and removing of the head 9 and a pad device 2 can be facilitated, a shape is made simple, and the reduction in the cost can be realized, as well.
Patent JP-H04285237-A (JP)
Title: Waterproof sealant for building
Inventor: NISHIYAMA AKIHIRO
IPC: E04B1/684
Filed: 1991-03-13
Abstract: PURPOSE:To improve waterproof construction work performance by filling viscous sealant into a recessed groove provided at the fitting face of a seal body to wall material, and providing filling viscous sealant with such viscosity as to be adhered to wall material in the state of the recessed groove being filled with the viscous sealant. CONSTITUTION:A long bar like seal body 2 of rectangular cross section is provided with a viscous sealant filling recessed groove 6 across the whole longitudinal length of the seal body 2 to fill viscous sealant 3. The fitting face 5, filled with the viscous sealant 3, of the seal body 2 is fittingly fixed into the specified position of the outer wall surface of outer wall material. The fitting face 5 side of the sealant body 2 is then deformed so as to be adhered to the irregular face of the outer wall material, and the viscous sealant 3 in the recessed groove 6 is pressed through the elastic deformation of the seal body 2. At this time, the viscous sealant 3 is partially forced out of the recessed groove 6 in the state of being filled with the viscous sealant 3, and enters between the outer wall surface of the outer wall material and the fitting face 5 of the seal body 2. The fitting face 5 of the seal body 2 is further placed in the completely adhered state through the viscous sealant 3 so as to secure perfect sealing function.
Patent JP-S58166891-A (JP)
Title: Chroma-key device
Inventor: TADAMI MITSUSHIGE
IPC: H04N9/75
Filed: 1982-03-26
Abstract: PURPOSE:To obtain easily an optimum background region through a control, by displaying with superposition the actual foreground color video data. CONSTITUTION:The angle alpha, opening angle theta, etc. of a coordinate axis are applied to a CPU12 by means of a key input, etc. Then a chroma data is written to an RAM 11. The boundary data read out of the RAM11 is extracted to an output terminal 17. A vector scope and a monitor picture receiver are connected to the terminal 17. Thus it is possible to see the foreground pictures through the monitor picture receiver in the boundary display action mode in case the foreground color video data and the boundary data exist alternately with each field. At the same time, a display having superposition of a locus formed by a color video data on the boundary display is carried out through a vector scope. With this display, the parameters such as alpha, theta, etc. are changed in order to obtain an optimum boundary for generation of a key signal.
Patent JP-S57164590-A (JP)
Title: Photosemiconductor device
Inventor: YANO MITSUHIRO
IPC: H01S5/062
Filed: 1981-04-01
Abstract: PURPOSE:To allow laser beam to deflect by the selective impression of voltage on a deflecting electrode, by providing the electrode on a semiconductor layer surrounding the both transverse sides of an active layer in a stripe type device of burried type double hetero structure. CONSTITUTION:An n type GaAlAs layer 2, a p type GaAl clad layer 3, GaAs active layer 4 and p type GaAlAs layer 5 are provided successively on an n type GaAs substrate 1, and a p type GaAlAs layer 6 for the prevention of current is provided on a part of an n type layer 2 with an n type GaAlAs layer 7 for  shutting up lateral directional light provided thereon to constitute double hetero burried type laser. The mode of laser oscillation can be varied to add the function for light deflection by providing deflecting electrodes 11, 13 on the layer 7 with the impression of required voltage thereon. Thus, a monolithic deflector on laser miniaturizes the device and facilitating a mutual adjustment.
Patent JP-H03252926-A (JP)
Title: Binarizing circuit
Inventor: KOJIMA KUNIO
IPC: G11B7/085
Filed: 1990-02-28
Abstract: PURPOSE:To obtain exact track cross signals by providing a logic circuit which output is made active until a synthesized signal is lowered rather than the second reference level smaller than the first reference level after exceeding the first reference level. CONSTITUTION:A first comparator 3 is provided to be made active when the synthesized signal exceeds the first reference level, and a second comparator 4 is provided to be made active when the synthesized signal is lowered rather than the second reference level smaller than the first reference level. Further, a logic circuit 7 is provided which output is made active until the output of the second comparator 4 is made active after the output of the first comparator 3 is made active. Thus, even when wobbling signals are superimposed to track error signals, the exact track cross signals can be obtained.
Patent JP-H09246057-A (JP)
Title: Amorphous wound iron core
Inventor: ARISAKA KOHEI
IPC: H01F27/25
Filed: 1996-03-06
Abstract: PROBLEM TO BE SOLVED: To improve magnetic properties of an amorphous wound iron core comprised of a thin strip of amorphous magnetic alloy. SOLUTION: Laminate blocks B1, B2 and B3 comprised of unit laminates U1, U2,... which are sequentially layered with a predetermined amount of displacement in the direction of the length are shaped like a rectangle to form unit iron core blocks C1, C2 and C3. A wound iron core 1 is formed by sequentially layering the unit iron core blocks. The amount of displacement of a unit laminate is set larger for an outer unit iron core block so that the clearance between the junctions j of unit laminates may become larger for a more outer unit iron core block.
Patent JP-H02229921-A (JP)
Title: Pull type friction clutch device
Inventor: KONO SATOSHI
IPC: F16D23/14
Filed: 1989-02-28
Abstract: PURPOSE:To provide smooth operation and secure separation work of a connecting mechanism by moving the edge of a connecting release lever in the direction opposite to the pulling direction of a release mechanism to separate the division element of the release mechanism. CONSTITUTION:When only the lower portion of the second lever member 30 is pulled to the right for separating a connected release mechanism 10, a press unit 34 presses both edges of one side surface 27a of the large-diameter flange unit 27 of a release ring 22 to the left. As a result, the ring 22 moves smoothly on a release case 11 against the spring force of a compression spring 24 in the axial direction to the left, and at the same time, a roller member 25 is pressed up in a hole 18 with the hole wire of an inclined hole 18 to release its engagement with an engagement groove 21. When a transmission housing 1 is retracted, a cylindrical unit 19 comes out of the inside of a large-diameter portion 11, so that the release case 11 and a release shaft 12 are separated securely and simply.
Patent JP-H03250299-A (JP)
Title: Manufacture of article monitoring label
Inventor: SAKAI HIDEJI
IPC: G11B5/80
Filed: 1990-02-27
Abstract: PURPOSE:To facilitate the manufacture of an article monitoring label by arranging a cut hard magnetic material like plural lines of strips at a prescribed interval on a tape base material, and thereafter, supplying and sticking a lower face tape consisting of a non-quality metallic thin wire, a pressure sensitive adhesive and mold releasing paper thereto. CONSTITUTION:A hard magnetic material 1 is cut by abutting of a rotary edge of an edged roller 5 on the upper face of an anvil roller 4. The cut strip- like hard magnetic material 6 is gripped by a magnet 7 on the anvil roller 4, and moves together with a rotation of the roller 4. In this case, since a surface speed of the anvil roller 4 by the rotation is higher than a supply speed of the hard magnetic material 1, plural lines of strip pieces of the cut hard magnetic material 6 are arranged side by side at a prescribed interval on the upper face of the anvil roller 4. Subsequently, an upper face tape 8 in which an adhesive agent 101 is applied to one face is supplied to the anvil roller 4, and pressed against the anvil roller 4 by a nip roller 9. In such a way, an article monitoring label can be manufactured simply.
Patent JP-H05251088-A (JP)
Title: Manufacture of porous carbon electrode plate for fuel cell
Inventor: OHASHI TAKASHI
IPC: C04B38/06
Filed: 1992-03-06
Abstract: PURPOSE:To improve the strength of a carbon electrode plate by blending polyacrylonitrile fabrics in the manufacture of porous carbon electrode plate for fuel cell. CONSTITUTION:60 to 100 pts.wt. of phenol resin with an average grain size of 10mum to 40mum and 50 to 230 pts.wt. of pore forming agent with a carbon yield of 10 pts.wt. or less are mixed with a 100 pts.wt. of a mixture of polyacrylonitrile fabrics or a mixture of polyacrylonitrile fabrics and carbon powders. The resultant mixture is heated and molded and then made infusible in the air. It is then carbonized at 800 deg.C or higher in an inactive atmosphere and subjected to thermal treatment at 200 deg.C to 2800 deg.C in an inactive gas atmosphere to generate graphite.
Patent JP-H11244304-A (JP)
Title: Root canal length measuring device-interlocking micro-engine device
Inventor: SUGIHARA KOICHI
IPC: A61C1/08
Filed: 1998-03-02
Abstract: PROBLEM TO BE SOLVED: To effectively and safely carry out operation for enlarging the root canal by effectively combining a micro-engine device for enlarging the root canal with a root canal length measuring device for detecting a position of the pulp cusp. SOLUTION: A hand piece 11 has a control box 10 detachably mounted through a code 12, a root canal length measuring device 20 connected through a connecting code 30 to the control box 10, and a code 21 or a measuring electrode extended from the root canal length measuring device 20. The hand piece 11 detects depth for root canal insertion of a root canal drilling tool 15 by the root canal length measuring device 20 and controls driving the drilling tool 15 according to detected signals. When the root canal length-measuring device 20 is functioned and when the drilling tool 15 is inserted into the root canal, the drilling tool is rotated. When a tip of the drilling tool 15 reaches a working length, a rotation of the drilling tool is reversed. When the drilling tool comes out of the root canal, its rotation stops.
Patent JP-2000247375-A (JP)
Title: Packaging bag
Inventor: FURUTA KATSUJI
IPC: B65D33/01
Filed: 1999-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a packaging bag wherein a tool such as scissors need not be prepared to open a part of the bag and a part of the bag can be easily opened due to an increase in internal pressure by cooking when it is cooked in a microwave oven. SOLUTION: The packaging bag for receiving food or an edible liquid-like substance in a sealed state inside using a synthetic resin film comprises a layer 2 constituting an internal face side made of a resin with a lower melting point than that of a layer 3 constituting an external face side. A degassing part 6 is formed on a part of the packaging bag, wherein the degassing part 6 is formed by forming a cut 9 on a material of the bag, heating the material of the bag in a range including the cut 9 at a temperature at which the layer 2 constituting the internal face side at least from the internal face side melts but the layer 3 constituting the external face side does not melt, and closing by melting to a degree that only the cut 9 of the layer 2 constituting the internal face side may open due to an increase in internal pressure of the bag when cooked in a microwave oven.  A plurality of degassing parts 6 are provided side by side.
Patent JP-H08219198-A (JP)
Title: Pin slide-type disc brake
Inventor: NAKAMURA HIROTAKA
IPC: F16D55/224
Filed: 1995-02-15
Abstract: PURPOSE: To prevent deterioration of brake properties for a long time by reliably preventing the slide resistance of a guide arm of a caliper to a cylindrical member from being increased in a slide mechanism of a pin slide-type disc brake. CONSTITUTION: In a pin slide-type disc brake in which a small-diameter hole is provided on the end of one guide arm 20, and this small-diameter hole is blocked by fitting a plug 54 for aspiration to the small-diameter hole. An annular groove is formed on the tip outer periphery of a slide pin 26 for supporting one guide arm 20, an U-shaped packing 60 is fitted into this annular groove, and the slide surfaces of the guide arm 20 and the slide pin 26 are sealed.