baber/WOPTO huggingface dataset:
Patent JP-2001023192-A (JP)
Title: Optical element, optical pickup device, and optical disk device
Inventor: KIJIMA KOICHIRO
IPC: G11B7/09
Filed: 1999-07-08
Abstract: PROBLEM TO BE SOLVED: To eliminate the need for applying an AR coat to a cover layer on the recording layer of an optical record medium by forming a magnetic field generation means on a surface that opposes the optical record medium of a lens and forming an electrode for detecting capacitance with respect to the optical record medium at the outer-periphery region. SOLUTION: An electrode S for detecting capacitance to a magnetooptical disk 2 is formed at the outer-periphery region of a spiral-shaped coil part 46 on a surface that opposes the magnetooptical disk 2 of a coil-supporting substrate 44. The electrode S is divided into a plurality of portions for each specific region. For example, the electrode S is divided into two portions concentrically. The outer-periphery region of the coil part 46 that is a magnetic field generation element is provided with an optical element with an electrode for detecting the capacitance at an area to the magnetooptical disk 2. Therefore, by measuring the capacitance between the electrode S and the magnetooptical disk 2, the distance between the electrode S and the magnetooptical disk 2 can be set to preset distance.
Patent JP-H0358072-A (JP)
Title: Cleaner for image forming device
Inventor: ISHIGURO YASUYUKI
IPC: G03G21/10
Filed: 1989-07-26
Abstract: PURPOSE:To accurately detect an amount of residual toner and to apply a suitable bias voltage by detecting the potential of a photosensitive drum on which an electrostatic latent image is formed, and calculating a bias value from the potential data. CONSTITUTION:A potential sensor Sv detects the potential of the photosensitive drum 8, on which a latent image is formed. A CPU detects a bias value, which is required for cleaning, in relation to the detected potential. The bias voltage is applied to the photosensitive drum via a bias control circuit. The electrostatic force of the photosensitive drum 8 for residual toner is weakened by the bias voltage, and the residual toner T is removed by a cleaning blade 141 and a fur brush. The toner is discharged to a toner recovering box by a spiral 148.
Patent JP-H0642501-A (JP)
Title: Hydraulic unit
Inventor: TABATA YUTAKA
IPC: F15B1/00
Filed: 1992-07-22
Abstract: PURPOSE:To prevent generation of oscillations and noises by arranging a noise absorber which is located below at least either a pump or a motor, each being mounted on an upper surface of a top plate of an oil tank. CONSTITUTION:Two rows of plate-like frames 14 are fixed to an upper surface of a top plate 12 of an oil tank 11, and a motor 16 to which a pump 15 is connected is fixed thereto. A noise absorber 17A is installed on the top plate 12 on the lower side of the motor 16. The noise absorber 17A has length L1 substantially equal to that of each frame 14, and has width slightly narrower than inner width of the frame 14, having plate-like form made of glass wool, etc. It is thus possible to prevent oscillations of the pump 15 and the motor 16 from being propagated by means of a vibration-proof rubber 13A, and to absorb noises by means of the noise absorber 17A.
Patent JP-2000031529-A (JP)
Title: Photomodule and its manufacture
Inventor: KATO KAZUTOSHI
IPC: H01S5/00
Filed: 1998-07-10
Abstract: PROBLEM TO BE SOLVED: To provide a high-performance and low-cost photomodule. SOLUTION: A photomodule is composed of a semiconductor waveguide path type of photoamplifier 101, an end face incidence refraction type of photodiode 102, and a sub-mount 103. The light incidence end face 101a and the light emission end face 101b of the optical amplifier are made by cleavage, and they are put on the same plane as the end face on semiconductor side of the photoamplifier. Though a light incidence end face 102a is made on the same plane as the end face on semiconductor side in the photodiode 102, a depressed part 102 is made, being depressed inward more than the face on semiconductor side, in the section where an optical axis passes besides being one part of the light incidence end face 102a. A step part 103a which aligns the optical axes by complementing the step between the optical axes of the photoamplifier 101 and the photodiode 102 is made in the sub-mount 103.  The photoamplifier 101 and the photodiode 102 are made arranged and mounted at the step part 103a of the sub-mount 103, bringing the light emission end face 101b and the light incidence end face 102a being each end face on semiconductor side into contact with each other, with semiconductor substrate side up and device layer side down.
Patent JP-H0481179-A (JP)
Title: Magnetic recording and reproducing device
Inventor: YOSHIOKA KANJI
IPC: H04N5/782
Filed: 1990-07-23
Abstract: PURPOSE:To reduce the time till the REC mode is set by providing plural field memories and a circuit controlling a delay and matching momentarily a color framing of a digital picture signal to be recorded with a color framing on a tape through the use of the memory. CONSTITUTION:A color framing detection circuit 11 receiving an input signal outputs a color framing signal (15Hz) 12 and a framing signal (30Hz) 13. Then a field number comparator circuit 14 receiving the said signal 12 and a field number on a tape reproduced by using a control signal (CTL) head detects the coincidence of the color framing. As a result, when the color framing is coincident, a multiplexer 3 selects a digital signal 3 and when one frame is deviated, the multiplexer 6 selects a digital signal 5 delayed by two fields. Thus, the field number of the input signal momentarily is matched with the field number recorded on the tape, and the effect of the inertia of the motor can be minimized.
Patent JP-2001020899-A (JP)
Title: Active silencer for air blowing apparatus
Inventor: OGATA HIRONARI
IPC: F04D29/66
Filed: 1999-07-09
Abstract: PROBLEM TO BE SOLVED: To provide an active silencer for an air blowing apparatus formed such that the degree of deterioration of a noise absorbing material and an acoustic generator is arbitrarily inspected. SOLUTION: A memory circuit 1 is provided to store a signal detected by a noise detector 105 when an air blowing apparatus 101 is operated in an initial state that a sound absorbing material 103 is not deteriorated. A signal detected by the noise detector 105 and a signal storing the initial state are compared with each other for computation by a computing circuit 2, and a display apparatus 3 is provided to display a difference obtained resultant from the comparison and computation. An inspector inspects the degree of deterioration of the sound absorbing material 103 only by reading display of the display apparatus. Thus, a need to visually inspect the internal part of a duct after a stop of the air blowing apparatus for a long period is eliminated and an exchange timing is decided without needing considerable cost and time.
Patent JP-2000030218-A (JP)
Title: Thin-film magnetic head
Inventor: FUJITA SEIJI
IPC: G11B5/31
Filed: 1998-07-10
Abstract: PROBLEM TO BE SOLVED: To assure interlayer insulation in spite of miniaturization by providing the head with a cross-sectional shape, of which the front surface constitutes a projecting curvilinear surface in a specific range of a region where coil layers are wound and the angle of inclination of the flanks has a value within a specific range. SOLUTION: This magnetic head has a cross-sectional shape, of which the front surface constitutes the projecting curvilinear surface in the range of 50 to 100% of the winding region of the coil layers, and the angle θ of inclination of the flanks exists within the range of 80 to 90 deg.C. An insulating resin layer 17 is formed on the coil layers of the first layer, and a photomask is positioned on a resist film formed on the surface of a ground surface conductive layer 6b, through which the resist film is exposed. The photomask is so patterned that the coils of the second layer exists between the coils of the second layers. In succession, an insulating resin layer 17b is formed on the coils of the second layer, and furthermore an upper magnetic pole 7 is laminated.  The coil layers of the first layer and the coil layers of the second layer formed in such a manner are electrically directly connected through wiring. The number of windings of the coil layers is decreased in the arraying direction of the coils, by which the magnetic path length of the magnetic poles is shortened.
Patent JP-S6440567-A (JP)
Title: Clathrate product
Inventor: CHIKAHISA NOBUHIKO
IPC: A23L27/00
Filed: 1987-08-05
Abstract: PURPOSE:To obtain the titled product with improved heat resistance, formability and clathrate characteristics, applicable to such various industrial sectors as foods, drugs and pesticides, by making cyclodextrin clathrate into the numerous pores in inorganic powder. CONSTITUTION:For example, a perfume as the guest compound is contained into the ring space of cyclodextrin (e.g. cultured with a Bacillus-based amylase) followed by making the resultant matter clathrate into the numerous pores (and hollow spaces) in inorganic powder (e.g. silica powder), thus obtaining the objective product This clathrate product is incorporated in e.g. a synthetic resin followed by molding to obtain a plastic article with the perfume prevented from escape due to double clathrate effects leading to enhancement of the perfume persistence.
Patent JP-S5985746-A (JP)
Inventor: SASAWAKI HIROSHI
IPC: B32B7/02
Filed: 1982-11-08
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-H0358632-A (JP)
Title: Line fault relieving system for satellite communication network
Inventor: YAMAMOTO KAZUKO
IPC: H04B7/15
Filed: 1989-07-27
Abstract: PURPOSE:To relieve a fault automatically and to improve the availability by recognizing a satellite link fault as a fault of a subminiature ground station for satellite communication and using a satellite communication form at in place of a ground public line network. CONSTITUTION:A satellite communication master station 4 connected to a satellite network management processor 1 is connected to a subminiature ground station 5 for satellite communication connecting to a user terminal equipment 6 via a satellite line of a communication satellite 9. When a fault takes place in a satellite line, a line switching device 3 and a user host computer 2 recognizes it as a fault of a ground station 5 and the master station 4 and the ground station 5 are connected through a MODEM 7 for public line network connection having an automatic dialing function respectively via a public line network 8 and when the satellite line is restored, the communication is switched back to the satellite communication format. Thus, while the fault is recovered, the satellite communication format is replaced automatically into the ground public line network to relieve the fault, thereby improving the availability.
Patent JP-H0864703-A (JP)
Title: Nonvolatile semiconductor memory device and its manufacture
Inventor: HEMINKU GERUTOYAN
IPC: H01L21/8247
Filed: 1994-08-19
Abstract: PURPOSE: To provide an EEPROM which facilitates the reduction of number of steps for mask processes for the formation of a layer-built gate, the elimination of the degradation of the reliability of a gate oxide film, improvement of the characteristics of a transistor and the reduction of the manufacturing cost of the transistor. CONSTITUTION: A cell transistor has an Si substrate 11 and first and second polycrystalline Si layers 18 and 24 built up on it. Writing and erasing are performed by the movement of electric charge between the first polycrystalline Si layer 18 and the substrate 11. A plurality of memory cell units which are respectively composed of a plurality of the connected cell transistors are arranged and connected to bit lines through selective transistors to constitute a memory cell array and peripheral circuits are provided around the memory cell array to constitute an EEPROM. The selective transistors and the transistors of the peripheral circuits have, like the cell transistors, gates composed of the layer-built first and second polycrystalline Si layers 18 and 24 and the first and second polycrystalline Si layers 18 and 24 are partially brought into contact with each other.
Patent JP-S6087907-A (JP)
Title: Continuous rolling mill for steel pipe
Inventor: IMAE TOSHIO
IPC: B21B17/02
Filed: 1983-10-21
Abstract: PURPOSE:To make wall thickness distribution uniform and to roll a steel pipe to have both thin walled ends by constituting the caliber of a stand of four rolls consisting of a pair of driving rolls and a pair of non-driven rolls having the shafts intersecting orthogonally therewith. CONSTITUTION:A roll stand P or Q consists of total four rolls; a pair of driving rolls 4 and a pair of non-driven rolls 4a, to each of which rolls a hydraulic rolling down cylinder 5 is installed. The adjacent stands P and Q of such four- roll type hydraulic rolling down stand are disposed in such a way that the roll shafts incline by 45 deg.. Formation of both ends of the pipe to a reduced wall thickness without thickness deviation in the circumferential direction is thus made possible and the product free from the increased thickness part at the pipe ends after reducing is thus rolled.
Patent JP-H08333780-A (JP)
Title: Water supply system
Inventor: TOKUNAGA KENSUKE
IPC: E03B11/12
Filed: 1996-07-25
Abstract: PURPOSE: To facilitate installation work, prevent an installation error and a water level control error, increase the freedom of water level setting, and the like in a water supply system. CONSTITUTION: A water supply system provided with a water receiving tank 1 for storing water supplied from water conveyance equipment with an inflow valve 3 so as to supply water to the end part of a faucet or the like is provided with a water level detector 30 for detecting water level in the water receiving tank 1 continuously and steplessly by water pressure or the like, and a control device 32 receiving a water level signal from the water level detector 30 and opening/closing the inflow valve 3 in correspondence with the water level signal so as to maintain the water level in the water tank 1 within a specified control water level range. The control device 32 sets the water level according to the demand quantity on the faucet side.
Patent JP-S5899505-A (JP)
Title: Hydraulic actuator operating apparatus
Inventor: OOKAWA YUKIO
IPC: F15B7/02
Filed: 1981-12-08
Abstract: PURPOSE:To prevent the malfunction due to the deterioration of working oil and increase the operation efficiency of the captioned apparatus by allowing the actuator operating medium oil sealed-in to circulate by allowing said oil to be relieved after advance and retreat movement and to be supplied. CONSTITUTION:When a rotary cam 7 is turned, the piston 4' of a hydraulic pump 4 is pushed by a roller 16, and a spring 6 installed onto a piston rod 5 is compressed, and working oil is discharged from a cylinder chamber 9. As the working oil is discharged from a cylinder chamber 9. As the working oil flows into the advance movement chamber 8 of a hydraulic actuator 1, passing  through a conduit 10, and operates a piston 1', the working oil in a retreat movement chamber 2 is pushed-out and flows into a pressure accumulator 3.  When the rotary cam 7 revolves further, and a cycle range A-B is exceeded, the  working oil from the cylinder chamber 9 is relieved by a valve 11, passing  through conduits 10 and 12, and returned into a tank 14. In a cycle range C-D,  the working oil from the pressure accumulator 3 flows into retreat movement  chamber 2, and the piston 1' is returned, and the working oil in the advance movement chamber 8 is returned into the hydraulic pump 4.
Patent JP-H0485212-A (JP)
Title: Pallet positioning jig
Inventor: YAMADA YOSHIO
IPC: B65G47/52
Filed: 1990-07-26
Abstract: PURPOSE:To make an accurate positioning by restraining the movement of a stopper while a jig body, which is loaded with pallets moving between conveyors carrying workpiece in and out, is guided by a pair of supporting plate on its both sides and a guide rail on its bottom side. CONSTITUTION:A pallet 5, 6 loaded with a workpiece is placed on a jig body 21 which moves back and forth between a conveyor 3, 4 carrying workpiece in and out. The jig body 21 conveys the pallet 5, 6 on an XY table 13 toward the conveyor 3 to conveyor 4 by a supporting plate 22 on its both sides and by a pair of guide rails 24 which is provided in parallel with the supporting plate 22 and a guide roller 23 on the inner side of the supporting plate 22, and which guides 8 plurality of roller follow 10 protruding to the bottom surface of the pallet 5, 6. The pallet 5, 6 is stopped at a specified position and held unmovable by virtue of a claw 32 on a front stopper 25 and a impinge piece 36 on a rear stopper 26, both provided on the guide rail 24. Next, the workpiece is worked on with a tool not shown on the drawing. Thus an accurate positioning is performed with a simple mechanism.
Patent JP-H118221-A (JP)
Title: Manufacture of microscopic element
Inventor: HOSOI TAKASHI
IPC: B29C65/00
Filed: 1997-06-17
Abstract: PROBLEM TO BE SOLVED: To remove the squeezed-out part of the bonding agent on the part where it can not be removed through polishing by a method wherein, after two semiconductor wafers have been adhered by a bonding agent, the bonding agent which is squeezed out from the adhesion surface is removed by an etchant which dissolves the bonding agent. SOLUTION: After an upper semiconductor wafer 1 and a lower semiconductor wafer 2 have been adhered by a bonding agent, the squeezed-out part 5 of the bonding agent is chemically removed, by dipping the semiconductor wafers 1 and 2 into the etchant which dissolves the bonding agent. In the ordinary bonding process of semiconductor wafer, the gas between semiconductor wafers after bonding is about 10 to 20 μm, and therefore, it takes a long time before the etchant infiltrated into the bonded part 4 of microscopic gaps in removed. Accordingly, even if the adhered upper and lower semiconductor wafers 1 and 2 are dipped into the etchant for a short time, the bonded part 4 is not removed at all, and only the squeezed-out part 5 in removed.
Patent JP-2001017992-A (JP)
Title: Biological nitrification and denitrification method for night soil, or the like
Inventor: MATSUNAGA KAZUSHIGE
IPC: C02F3/34
Filed: 1999-07-09
Abstract: PROBLEM TO BE SOLVED: To make it possible to adequately control both of a nitrification stroke and denitrification stroke in accordance with a standard by making the time ratio of one batch of both strokes constant with a single tank, admitting sewage during the denitrification stroke and increasing or decreasing an aeration air quantity in such a manner that an oxidation reduction potential inflection point appears before the start of the next nitrification stroke. SOLUTION: The sewage is admitted into the single nitrification and denitrification tank 1 and is subjected alternately to the nitrification stroke by aeration and the denitrification stroke by agitation. Previously, the nitrification and denitrification strokes of one batch and one cycle are set at about one hour to execute the nitrification stroke for about 15 minutes and the denitrification stroke for about 45. When the sewage is admitted for about 5 minutes from the start, the oxidation reduction potential(ORP) value falls rapidly from about 130 mV to around 0 mV and the ORP inflection point appears before around 5 minutes upon the end of the denitrification after the slowness of the value, then falls to about -200 mV. The ORP value rapidly ascends to near about 130 mV again when the next nitrification stroke starts.  The aeration air quantity is increased and decreased in such a manner that the ORP inflection point appears during the time before 5 minutes to just before the start of the nitrification stroke.
Patent JP-S6257628-A (JP)
Title: Pretreatment of by-product gas from ironworks
Inventor: NADA JUNICHIRO
IPC: C01B32/40
Filed: 1985-09-05
Abstract: PURPOSE:To make CO easy to separate and recover by supplying by-product gas from an ironworks to an oil-cooled screw compressor to bring dust into oily mists, subjecting the gas to preliminary dehumidification and deoiling, removing impurities by a selective adsorption means and finally dehumidifying the gas. CONSTITUTION:The by-product gas is supplied to an oil-cooled compressor 1, the dust is brought into contact with the oil in the compressor 1 to form oil mists, then dehumidification is carried out to the extent that the succeeding adsorption by activated carbon is not disturbed and the oil mist is adsorbed and removed in a deoiling tower 5 by using comparatively inexpensive activated carbon. S, HCN, HF, NH3, etc., in the deoiled by-product gas are adsorbed and removed in a tower 6 for removing S and NH3. After the by-product gas is sufficiently dehumidified in switching dehumidification towers 7a and 7b, the gas is supplied to CO separation and recovering stages as the pretreated gas to be further treated.
Patent JP-S6087338-A (JP)
Title: Composite type electrophotographic sensitive body
Inventor: OKA HIROYUKI
IPC: G03G5/04
Filed: 1983-10-19
Abstract: PURPOSE:To obtain high sensitivity over a wide wavelength range including the emission wavelength region of a semiconductor laser and to obtain a tough photosensitive body good in film-forming property by using a specified metal-free phthalocyanine as an electrostatic charge generating material and polyvinyl carbazole or its deriv. as a charge transfer material. CONSTITUTION:A layer contg. a charge generating material and a layer contg. a charge transfer material are formed on a conductive substrate to obtain a composite type electrophotographic sensitive body. As the charge generating material, metal-free phthalocyanine of a type selected from tau-type, tau'-type, eta-type, and eta'-type is used, and as the charge transfer material, polyvinyl carbazole or its deriv. is used. Such a composite type photosensitive body is obtained, e.g., by forming a layer contg. the charge generating material on a conductive substrate and on this layer a layer contg. the charge transfer material. Said phthalocyanine type compd. has a photosensitivity peak in the wavelength region of 790- 810nm, and the use of a combination of it and polyvinyl carbazole enhances film forming property and toughness, and gives high sensitivity when it is charged once, and the obtained photosensitive body is especially suitable for a semiconductor laser printer using a semiconductor laser as a light source.
Patent JP-2001016987-A (JP)
Title: Rush root cutting device
Inventor: YABUUCHI MASATOSHI
IPC: A01G9/00
Filed: 1999-07-09
Abstract: PROBLEM TO BE SOLVED: To provide the subject device so designed as to horizontally support an electric cutter drivably on a frame mountable on the surface of the ground and also set up a specific extrusion tackle so as to enable rush roots pulled off the field and washed with water to be cut easily to any length, therefore enabling the roots to be formed highly easily into desired parent stocks. SOLUTION: This rush root cutting device is so designed as to horizontally support an electric cutter 3 drivably on a frame mountable on the surface of the ground and also set up an extrusion tackle 5 movably back and forth and in such a manner as to stand against the electric cutter 3; wherein the extrusion tackle 5 can be mounted with a guide pin 6 with rush roots D insertable thereinto in a comb tooth fashion, alternatively, such a guide pin 6 can be supported horizontally in a vertically movable manner above the electric cutter 3.