baber/WOPTO huggingface dataset:
Patent JP-H07326908-A (JP)
Title: Irreversible circuit element
Inventor: ISHIURA YUTAKA
IPC: H01P1/383
Filed: 1994-05-31
Abstract: PURPOSE:To improve insertion loss characteristics or the like without increasing the number of parts by forming a recessed part or a hole at a part opposite to the permanent magnet of a yoke for forming a magnetic closed circuit and impressing an uniform magnetic field to the entire ferrite. CONSTITUTION:The recessed part 1a is formed at the center part of the bottom plate inner wall of the lower yoke 1 of a circulator. The recessed part 1a formed at the center part of the bottom plate inner wall of the lower yoke 1 is formed in a shape for forming approximately a part of a sphericality. That is, it is formed so as to let the thickness of the center part of the recessed part 1a be thin and to let the thickness become closer to the thickness of a plate thickness as the peripheral part of the recessed part 1a gets closer. Magnetic force distribution at a ferrite position inside the magnetic closed circuit formed by the lower yoke and an upper yoke has flat characteristics at the part equivalent to the diameter of the ferrite and the uniform magnetic field is impressed to the entire ferrite. As a result, the insertion loss of the circulator is substantially improved more than the insertion loss of a conventional circulator indicated by a dotted line.
Patent JP-H09300552-A (JP)
Title: Weatherable film
Inventor: IIDA AKIRA
IPC: B32B27/30
Filed: 1996-05-14
Abstract: PROBLEM TO BE SOLVED: To provide a weatherable film in which a transparent PVC(polyvinyl chloride) layer on the surface side is not deteriorated even in the case of receiving effect of sunlight and the PVC layer is not discolored. SOLUTION: A film which is made of PVC and has a thickness of 0.04-0.20mm is laminated in two layers. The surface side of the laminated film is transparent and the rear side of colored. A maleic acid compound is blended in an amount of 0.03-0.30 pts.wt. based on 100 pts.wt. PVC in the transparent layer on the surface side.
Patent JP-H01287460-A (JP)
Title: Magnetic powder flaw detecting device
Inventor: SHIRAI TASUKU
IPC: G01N27/84
Filed: 1988-05-16
Abstract: PURPOSE:To facilitate operation for magnetic powder scattering, etc., by forming the base block of a three-pole revolving magnetic field type inter-pole magnetic powder flaw detecting device in a V shape having a specific narrow angle. CONSTITUTION:The base block which has magnetic legs wound with coils 2 to 4 for revolving magnetic field production is formed in the V shape whose narrow angle theta is 60 deg. and the part 20 to be detected of an object body 1 is easily observed from right above to improve inspection reliability; and a wide space is provided on the opposite side from the peak point of the block 8 to facilitate the operation for magnetic powder scattering, etc.
Patent JP-2000309761-A (JP)
Title: Cover tape for carrier tape and tape-like carrying body
Inventor: UEMURA TAKASHI
IPC: C09J7/02
Filed: 1999-04-26
Abstract: PROBLEM TO BE SOLVED: To obtain a cover tape exhibiting good antistatic effects without detriment to clarity by forming a heat seal layer and then a vapor-deposited metal layer on one side of a cover tape substrate. SOLUTION: This cover tape 4 comprises a cover tape substrate 10, a heat seal layer 12 formed on the whole underside of the substrate 10 and a vapor- deposited metal (e.g. aluminum) layer 14 formed on the heat seal layer 12 and having a surface resistivity of 20-500 Ω/(square). On the exposed surface of the vapor-deposited metal layer 14, an oxidation prevention layer in an amount of 0.1-10 mg/m2 is formed from SiOX (1<=x<2), etc., for preventing corrosion, The earring body comprises a band-like carrier tape having pockets 6 for containing parts and a band-like cover tape 4 stuck to the carrier tape so as to seal the pockets, After electronic parts W are put into the pockets 6, the cover tape 4 is heat-sealed to seal the pockets 6. Thus, the carrying body is used.
Patent JP-S6010076-A (JP)
Inventor: MICHIHIRA OSAMU
IPC: E05B85/00
Filed: 1983-06-29
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H09302654-A (JP)
Title: Construction method and device for driving steel pipe pile
Inventor: KUROIWA KENJI
IPC: E02D7/00
Filed: 1996-05-14
Abstract: PROBLEM TO BE SOLVED: To set digging and boring ranges to be closer to an outer diameter of a steel pipe pile than in the case of a conventional replacement construction method, and perform placement of a steel pipe pile in one process simultaneously with digging and boring without providing a process of replacement by good quality soil at favorable precision without using large-scaled temporarily installed facilities. SOLUTION: An applied down-the-hole hammer 1 is of such a type that a bit part 1a can be diameter-enlarged, the down-the-hole hammer 1 and a rod 4 installed on a pile driver 2 are inserted into a steel pipe pile 6, the bit part 1a of the down-the hole hammer 1 protruded from a tip of the steel pipe pile 6 is diameter-enlarged, and after diameter-enlarging, the steel pipe pile 6 is put on the down-the-hole hammer 1, so boring and driving are started by the down-the-hole hammer 1. After completion of boring, the bit part la is diameter-contracted, and the rod 4 inside the steel pipe pile 6 and the down- the-hole hammer 1 are pulled up.
Patent JP-H11312320-A (JP)
Title: Disk device
Inventor: SAWADA YUKIO
IPC: G11B7/09
Filed: 1998-04-28
Abstract: PROBLEM TO BE SOLVED: To provide a disk device capable of detecting the shifted balance of a tracking error signal without using a peak hold or bottom hold circuit. SOLUTION: This disk device is provided with pickup devices 3 and 4 for reading information recorded in an optical disk 1 while performing focus servo, tracking servo and traverse servo by irradiating the optical disk 1 with optical beams, an RF amplifier 6 for extracting a focus error signal, a tracking error signal and an RF signal from the pickup devices 3 and 4, a spindle motor 2 for rotary-driving the optical disk 1, spindle servo means 9 and 10 for controlling the rotation thereof, and a control means 8 for controlling each of the servos. This device is further provided with a means 11 for detecting an off-track signal, and the shifted balance of the tracking error signal is detected by sampling the tracking error signal at the changing point of the detected off-track signal.
Patent JP-S5821300-A (JP)
Inventor: IMAZAWA KOUJI
IPC: G10L19/08
Filed: 1981-07-31
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5243213-A (JP)
Title: Steering damper for guide vehicle
Inventor: SUDOU SUSUMU
IPC: B61B13/00
Filed: 1975-10-01
Abstract: PURPOSE:To improve steering stability in travelling of a guide vehicle by imparting a damper function to a cylinder for controlling guide wheels.
Patent JP-H01290460-A (JP)
Title: Sheet feed device
Inventor: HIRAMATSU SOICHI
IPC: B41J13/00
Filed: 1988-05-18
Abstract: PURPOSE:To obtain a structure by which the subject device can be made compact and also constituted as a single unit by designing the structure which enables a sheet holding member to be pressed against or separated from a delivery roller by rotation of a support shaft provided at a specified position in freely rotatable manner. CONSTITUTION:A spur shaft 7 consists of both end sections which are axially supported at a specified position on the right and left side plates 37, 37 of a frame on a sheet feed mechanism section. A spur release lever 31 is fixed with a pin 30 on a right end section, and when the spur is not released, the spur release lever 31 is engaged. The spurs 3, 4 are maintained in contact with a delivery roller 1 through a recording sheet 5. When released the spur release lever 31 is manually turned counter-clockwise, and the spur shaft 7 rotates counter-clockwise to allow a spur holder 6 and a paper delivery guide 11 to rock in the same direction. This results in a release state in which the spurs 3, 4 are separated from the delivery roller 1. Consequently, since the spur shaft 7 is provided at a specified position and does not move, the required space for the release action can be reduced, and the whole recording device can be minimized. At the same time, the sheet feed device can be constituted as a single unit.
Patent JP-H08282698-A (JP)
Title: Lid attaching structure
Inventor: FUJII SHIGEKATSU
IPC: B65D43/22
Filed: 1995-04-19
Abstract: PURPOSE: To provide a lid attaching structure constituted so that a lid is connected to a container main body to be prevented from separation when opened and equally pressed to the entire periphery of the opening part of the container main body when closed to close the container main body to keep a watertight state for a long period of time. CONSTITUTION: A lid attaching structure is constituted of a container main body 1, the lid 3 closing the opening part of the container main body 1, the engaging arms 5a, 5b engaged with the parts 4a, 4b to be engaged provided at both ends of the lid 3 to press the lid 3 to the opening part 2 and a rotary hinge 6 provided at one end of the lid 3 in a protruding state and pivotally provided on the rotary shaft 7 of the pivot mounting part of either one of the engaging arms 5a, 5b and having the shaft hole 8a in which the rotary shaft 7 is inserted formed thereon to a slot shape extending in the pressing direction of the lid 3 by the engaging arms 5a, 5b.
Patent JP-H05315929-A (JP)
Title: Object proximity detector
Inventor: MORITA YOSHIYUKI
IPC: H03K17/95
Filed: 1992-05-12
Abstract: PURPOSE:To attain an object proximity detector capable of detecting the approach of an object in non-contact and reducing power consumption in a stand-by state. CONSTITUTION:An object 6 to be detected is provided with a body 7 to be detected which includes a resonance circuit 8 in itself. A detector body 1 is provided with an amplifier circuit 4, the 1st connection line 2 connected to the output terminal of the circuit 4, the 2nd connection line 3 connected to the input terminal of the circuit 2, and a proximity detecting circuit 5. When the circuit 8 approaches the 1st and 2nd connection lines 2, 3, an oscillation circuit based upon a positive feedback loop is formed by the circuit 8, the lines 2, 3 and the circuit 4 and an oscillation signal s1 is generated. The circuit 5 judges the amplitude of the signal s1, detects the approaching state of the circuit 8 and outputs a detection signal s2.
Patent JP-S5823168-A (JP)
Title: Fuel cell power generating system
Inventor: FURUYA TOMIAKI
IPC: C01B3/38
Filed: 1981-07-31
Abstract: PURPOSE:To eliminate a heat resistant wall having large heat capacity and follows quickly to load variation by using a reformer which provides a steam reforming reaction tube having a double tube construction. CONSTITUTION:A reaction tube has a double tube construction comprising an inner tube 16 and an outer tube 17. The catalyst for reforming is filled in the inside 18 of the inner tube and the catalyst for fuel gas combustion is filled in the inside 19 of the outer tube. The reaction tube 22 is heat-insulated with a heat insulator 23. The raw material for reforming is introduced to the catalyst filled place for reforming from a raw material introducing hole 25 to reform. A fuel gas is introduced to the catalyst filled place for fuel gas combustion from a fuel gas introducing hole 26 to burn, and combustion heat is fed to a forming place through a tube wall. Because a reforming reaction tube has its own heat source and is heat-insulated with the heat insulator, due to following to load variation of a fuel cell, the number of reaction tubes can be varied to control the supply of hydrogen.
Patent JP-2000309437-A (JP)
Title: Paper feeder and image recorder provided with this paper feeder
Inventor: ITO KIYOTERU
IPC: B65H3/06
Filed: 1999-04-27
Abstract: PROBLEM TO BE SOLVED: To provide a paper feeder excellent in the point of workability while enabling both up separating paper feed of documents and down separating paper feed of documents by a simple mechanism and control. SOLUTION: An upper and a lower pickup roller 203A, 203B are arranged opposite to each other while interposing a document mounted on a document mounting stand 201. While pressing the document downward by the upper pickup roller 203A, the lower pickup roller 203B is normally rotated interlocking with down separating action of a document separating means at down separating action time. On the other hand, the upper pickup roller 203A is normally rotated interlocking with up separating action of the document separating means at up separating action time.
Patent JP-S5976266-A (JP)
Inventor: ROJIYAA ROOTEISU GANBURIN
IPC: B41J2/075
Filed: 1983-06-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S4866773-A (JP)
IPC: H01L21/00
Filed: 1972-11-30
Abstract: 1372610 Semi-conductor devices INTER. NATIONAL BUSINESS MACHINES CORP 21 Nov 1972 [10 Dec 1971] 53667/72 Heading H1K A FET comprises a substrate 1 of Cr doped semi-insulant GaAs produced from a sliced and polished crystal which is infra-red heated in an open tube reactor in a circulating H 2  atmosphere, to which AsCl 3  is added; the gas flowing over a boat containing Ga saturated with As, the substrate being cut parallel to the 111 crystal plane and coated on the side exhibiting more Ga atoms at the surface. An undoped buffer layer is epitaxially deposited thereon, into which physical defects of the interface plane of substrate 1 extend. Therefore, a further highly conductive layer 8 doped with sulphur from H 2 S is epitaxially deposited to suppress the imperfections and provide a channel layer on which ohmic source drain contacts 3, 5 and Schottky gate control 4 are conventionally deposited.
Patent JP-H09279573-A (JP)
Title: Steel framed bottom enlarged pile using existing pile
Inventor: YAMADA MINORU
IPC: E02D5/44
Filed: 1996-04-18
Abstract: PROBLEM TO BE SOLVED: To construct a steel framed bottom enlarged pile at the lower end of an existing pile using such an existing pile that the whole enlarged bottom part area is regarded as effective cross-sectional area in pile bearing capacity computation. SOLUTION: A drum-like tip fitting 4 that can support its own weight with nearly the same dimension as the outer diameter of an existing pile 3 is fitted to the lower end of the pile 3, and this pile body is inserted in a pile hole 1 with a pile bottom enlarging part 5. Concrete 20 is pressed into the drum-like tip fitting 4 through a pile body hollow' part 13. A plurality of opening doors 10 provided at the tip fitting 4 and opened to the outside are opened into the pile bottom enlarging part 5 by the passage of the concrete 20 so as to provide the pile bottom with an enlarged bottom part 18 reinforced by a steel frame formed of the opening doors 10.
Patent JP-H01289279-A (JP)
Title: Contact-type image sensor
Inventor: YAMASHITA KATSUSHIGE
IPC: H04N1/028
Filed: 1988-05-17
Abstract: PURPOSE:To make a device small-sized and to reduce a cost of materials by a method therein all components constituting an image sensor are mounted on both faces of one substrate. CONSTITUTION:Drive circuit components 7, signal processing circuit components 8 and a connector 9 are solderd to a substrate 1 having a wiring pattern 2. Then, a silicone-based adhesive 4 is coated on an opposite face of the substrate 1, an image sensor chip 3 where a photodetector and a drive element have been formed is placed on it and the wiring pattern 2 and electrodes on the image sensor chips 3 are bonded by using gold wires 5 or the like. By this setup, it is possible to obtain a small-sized and low-cost contact-type image sensor.
Patent JP-S5643773-A (JP)
Title: Semiconductor device for detection of light
Inventor: FUJIMOTO SETOSHI
IPC: H01L27/146
Filed: 1979-09-17
Abstract: PURPOSE:To accomplish accurate arrangement and firm assembly of a photo sensitive surface by arranging a semiconductor pellet for detecting light on an insulating substrate in a required array according to the detection method. CONSTITUTION:Semiconductor pellets 2 for detecting light are arranged in a concave part of an insulating substrate 1 at a required space. A fine metal wires 4b are respectively connected to terminals 3a and electrodes of the pellets 2 while fine metal wires are respectively connected to terminals 3b and a common electrode of the pellets 2. In the production process, after the assembly of the pellets 2 on the insulating substrate by bonding thereof in a required array, they are finally sealed up with a quartz glass plate 6. As a result, a photo-sensitive surface of a given area can be arranged in the requried array at a high accuracy along with a firm assembly.
Patent JP-S5744503-A (JP)
Title: Pneumatic tire equipped with puncture preventive layer
Inventor: TSURUNAGA YASUAKI
IPC: B60C17/00
Filed: 1980-08-29
Abstract: PURPOSE: To prevent a tire form being punctured by a protrusive object on the road, by providing a cut-resistant layer, integrated to a crown part only at breadthwise both side edges, internally circumferentially of the crown part of the tire main body reinforced with a toroid-state carcass.  
     CONSTITUTION: In case of application to a tubeless tire, there is arranged a cut- resistant layer 7 as the inner liner glued to a carcass 6 only at both side deges 7a, 7a' along the inner circumference of a crown part 4 in the inside of the carcass 6 in a tire main body 3. This cut-resistant layer 7 is constituted by a rubber sheet 9 embedded with a reinforcing layer 8 in its intermediate part. In the above tire, since the cut-resistant layer 7 is not glued to the carcass 6 at its central part 7b, a protrusive object 2, even though extending through the carcass 6, can be prevented from also puncturing the cut-resistant layer 7, then the tire can be prevented from being punctured. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S6012742-A (JP)
Title: Semiconductor device
Inventor: TANAKA SHIGERU
IPC: H01L21/82
Filed: 1983-07-01
Abstract: PURPOSE:To reduce the rear to be occupied by an output buffer transistor by the increase of the gate length per transistor and unit area by a method wherein the element region of the gate controlled type transistor composed of MOSFET formed on a substrate is split type into a plurality of source and srain electrodes by means of mesh gate electrode wiring material, which regions are then connected with wiring material. CONSTITUTION:The gate electrode wiring material 6 of polycrystalline Si, etc. is formed into a lattice form of squares, and the elements region is split so that the source regions 3 and the drain regions 4 become checkered pattern. In such a manner, the most part under the wiring material 6 is made as an active transistor region, resulting in the increase of the gate length per unit area. Here, the lattice can be also formed into other angular form as well as the form of square; the split regions are connected with the wiring material, and then transistors of large driving power and contained in the small regions of an IC device.
Patent JP-S5453781-A (JP)
Title: Remote supervisory controller
Inventor: MIYAZAKI TOSHIAKI
IPC: H04Q9/00
Filed: 1977-10-05
Abstract: PURPOSE:To permit of clear indication of whether the change of state of indicated data is caused artificially or not, by adding a condition of having performed control operation to a flicker restricting condition based on individual selecting signal. CONSTITUTION:The individual selecting signal is applied to a condition adding circuit 8. A differentiation circuit 9 for differentiating a control performing signal, and a memory circuit 10 for storing the output of the differentiation circuit 10 are provided. The output of the memory circuit 10 is applied to the condition adding circuit 8, whose output is entered into a condition adding gate circuit 3. A circuit 11 is provided for detecting the state change of indicated data at the time of selection. The output of an indicated data state change detection circuit 2 and the individual selecting signal are applied to the detection circuit 11, whose output is applied to the memory circuit 10 through a negation terminal.
Patent JP-S6010679-A (JP)
Title: Semiconductor memory
Inventor: MATSUDA YUKIMASA
IPC: H01L29/792
Filed: 1983-06-29
Abstract: PURPOSE:To reduce the occurrence of an improper memory volatilization due to defective manufacture in a semiconductor memory having a floating gate by forming the gate through an insulating film in a double structure. CONSTITUTION:The floating gate 2 of a semiconductor memory having a control gate 1, a floating gate 2, a channel section 3, a drain 4, a source 5, a surface protective film 6, an interlayer insulating film 7, a gate oxidized film 8, a field oxidized film 9, and a silicon substrate 10 is formed in a structure that the film 11 is interposed between two layers 2a and 2b. Part of hot electrons generated by avalanche passes in the film 8 by an electric field generated by the gate 1 in the depletion layer region near the drain 4, and stored in the gates 2a, 2b. The charges stored in the both floating gates are provided to operate a transistor even solely.
Patent JP-S62277697-A (JP)
Title: Sample holding circuit
Inventor: OINUMA AKIRA
IPC: G11C27/02
Filed: 1986-05-23
Abstract: PURPOSE:To reduce distortion and also to improve the quantity of sound by adding a bridge circuit consisting of plural resistances and a 2nd operational amplifier to a conventional sample holding circuit. CONSTITUTION:A bridge circuit 1 consists of four impedance circuits, e.g., resistances R1-R4 having such resistance values that secure the balance between the left two sides and the right two sides. The output terminal of the 2nd operational amplifier 3 is connected to a 2nd connection point P2 among those four connection points of a bridge. If the balance of the circuit 1 is lost, a current is outputted from the output terminal of the amplifier 3 to recover the balance of the circuit 1. While the balance of the circuit 1 is always secured as long as the amplifier 3 has a satisfactorily high through-rate. Thus a capacitor 4 is charged and discharged by the amplifier 3 only. While the 1st operational amplifier 2 is set equivalently in a no-load state and can transmit an accurate waveform. Thus it is possible to reduce the distortion over an entire band especially at a high band.
Patent JP-H0992583-A (JP)
Title: Electric double-layer capacitor
Inventor: SHIMIZU TATSUHIKO
IPC: H01G11/24
Filed: 1996-05-15
Abstract: PROBLEM TO BE SOLVED: To provide an electric double-layer capacitor which can be enhanced in operation voltage without producing an irreversible current. SOLUTION: The electrostatic capacitance ratio of a positive polarizable electrode 14 to a negative polarizable electrode 16 is controlled by varying the area ratio of the electrode 14 to the electrode 16, whereby the potentials of the electrodes 14 and 16 are set smaller than the decomposition potentials of them when a voltage is applied between the electrodes 14 and 16 through the intermediary of current collectors 10 and 12. By this setup, an electric double-layer capacitor of this constitution can be enhanced in operating voltage as high as a certain value where no irreversible current is produced.
Patent JP-S5546651-A (JP)
Title: Plate speaker
Inventor: TANAKA JIYUNICHI
IPC: H04R9/06
Filed: 1978-09-29
Abstract: PURPOSE:To flaten sound pressure and phase-frequency characteristics in a piston region by providing a broad reproduction band by using a ring-shaped plate without directivity as a diaphragm and then by driving the node of its primary-axis symmetrical split vibration by a voice coil. CONSTITUTION:Ring-shaped plate 1 is used as a diaphragm and to its primary-axis symmetrical split resonance, voice coil 2 is fitted and then driven by magnetic circuit part 3. Since diaphragm 1 drives the node of the primary-axis symmetrical split resonance of the diaphragm without directivity, the node of an ordinary cylindrical voice coil can be driven and nearly-flat sound pressure-frequency characteristics can be obtained in a piston region until a secondary split resonance frequency.