baber/WOPTO huggingface dataset:
Patent JP-H08188436-A (JP)
Title: Production of optical fiber preform
Inventor: HORIKOSHI MASAHIRO
IPC: G02B6/00
Filed: 1994-12-29
Abstract: PURPOSE: To provide a method for producing an optical fiber preform having a well suppressed fluctuation in outside diameter in the longitudinal direction. CONSTITUTION: Glass fine particles produced in a flame of a burner are deposited in the axial direction of a rotating central member 1 to produce a porous optical fiber preform. An excessively long large-diameter part 2' gradually enlarging the diameter from a part of the same outside diameter as that of the central member 1 is formed in at least one end of the central member 1 so that the average rate of change in the outside diameter in the excessively long part 2' may be tanθ<=2.5 when the tilt angle from the end of the central member 1 is θ. Thereby, a region of the fluctuation in the outside diameter is shortened.
Patent JP-H05151569-A (JP)
Title: Thin-film magnetic disk and method for decreasing noise thereof
Inventor: ABE TOSHIRO
IPC: G11B5/84
Filed: 1991-11-29
Abstract: PURPOSE:To decrease side band noises by decreasing the surface roughness of a substrate which is constituted of crystallized glass and is laminated with a magnetic layer thereon. CONSTITUTION:The thin-film magnetic disk 1 consists of the substrate 1a and the magnetic layer 1c laminated on the substrate and is subjected to magnetic recording and reproducing by a magnetic head disposed opposite thereto. The substrate 1a is constituted of the crystallized glass and the roughness of the substrate 1a which is constituted of the crystallized glass and is laminated with the magnetic layer 1c is confined to about <=20Angstrom  center line average height of the substrate surface S. As a result, the surface roughness of the substrate 1a which is constituted of the crystallized glass and is laminated with the magnetic layer 1b thereon is small and, therefore, the side band noises are lowered. The noises of the thin-film magnetic disk 1 are, therefore, decreased.
Patent JP-H07158427-A (JP)
Title: Exhaust emission control device for internal combustion engine
Inventor: AWASAKA MORIYOSHI
IPC: F01N3/20
Filed: 1993-12-07
Abstract: PURPOSE:To suppress the discharge of harmful elements to a minimum by providing a current carrying means for carrying a current to a heating device from the time of detecting the intention of start by a start intention detecting means to the specified period after the start of the engine. CONSTITUTION:A first catalyst device 15 is disposed at the intermediate part of the exhaust pipe 14 of an engine 1, and a second catalyst device 16 is disposed under the floor of the engine, downstream of the first catalyst device 15. The first catalyst device 15 has a three-way catalyst part 17 and a heater part 18. The heater part 18 is connected to an ECU (specified period setting means) 5 through a heater control part 19 and current-controlled by a control signal from the heater control part 19. A catalyst temperature sensor 30 is mounted on the first catalyst device 15, and its output signal is supplied to the ECU 5. The concentration of oxygen in exhaust gas is detected by an oxygen concentration sensor 21 and supplied to the ECU 5. The discharge of harmful components can be thus suppressed to a minimum even immediately after the start of the engine.
Patent JP-H04209938-A (JP)
Title: Slip control device for vehicle
Inventor: ANAMI YOSHIAKI
IPC: F02D29/02
Filed: 1990-11-30
Abstract: PURPOSE:To correct accurate slip control without using a G sensor by properly using an actual turn radius and a turn radius, corresponding to a steering angle, in accordance with a condition, in the case of obtaining lateral acceleration of a vehicle for correcting the slip control. CONSTITUTION:A vehicle is provided with a slip control means 8, which controls driving of drive wheels 2FL, 2FR so that a slip amount obtains a target value when the slip amount relating to a road surface of the drive wheels 2FL, 2FR exceeds a predetermined threshold value, and a lateral acceleration corresponding correcting means 11 for correcting the above-mentioned threshold value and the target value in accordance with lateral acceleration of a vehicle. An actual turn radius arithmetic means 12, steering angle corresponding turn radius arithmetic means 13, lateral acceleration arithmetic means 14 and a turn radius selecting means 15 are connected to the lateral acceleration corresponding correcting means 11. In the case of turn running of the vehicle, when a trend, displaced from a running line in a steering angle corresponding turn radius, is large generated, lateral acceleration in the steering angle corresponding turn radius is calculated. On the other hand, when the above-mentioned trend is not large generated, the lateral acceleration is calculated in the actual turn radius.
Patent JP-H06193802-A (JP)
Title: Disposing method of heat exchanger tube of fluidized bed boiler
Inventor: SATO SUSUMU
IPC: F22B1/02
Filed: 1992-12-21
Abstract: PURPOSE:To enable improvement of wear resistance without lowering the heat transfer coefficient of a heat exchanger tube in a fluidized bed boiler. CONSTITUTION:Heat exchanger tubes 3 provided in a furnace wall 1 of a fluidized bed boiler have steam inlets provided in the upper left part and steam outlets in the lower right part and they meander in the furnace wall 1. In an inlet part, an outlet part and curved parts of these heat exchanger tubes 3 and in the part of an area on the lower side of the fluidized bed boiler, the heat exchanger tubes fitted with protective materials (protectors) are disposed and protected thereby from the wear due to collision of a fluidized material. In an area on the upper side of a fluidized bed wherein a metal temperature is low, the heat exchanger tubes sprayed with a wear-resistant material are disposed. In an intermediate part, the heat exchanger tubes which have oxide films formed on the surfaces by using a material of SUS series are disposed. In this way, the extent of installation of the protectors wherein a heat transfer coefficient lowers is lessened, a wear reducing effect can be produced by the SUS oxide film, while the spray bringing forth a high wear resistance is used in the low-temperature area, and thereby steam superheating can be conducted effectively in the fluidized bed.
Patent JP-H08189645-A (JP)
Title: Preventive device for overheat of gas holder
Inventor: SUZUKI HIROSHI
IPC: F24C3/12
Filed: 1994-12-28
Abstract: PURPOSE: To normally use a gas apparatus without activating a safety device sensing a pressure, by stopping heat from being added to a gas holder, in the case where temperature around the gas apparatus in use is high. CONSTITUTION: In a gas apparatus composed so that a heat-transfer plate 16 for transferring combustion heat can be brought into contact with the outer surface of a gas holder 11, a holder-depressing means 17 which keeps the gas holder 11 from the heat-transfer plate 16 by deforming the plate at a preset temperature T, in order to prevent the gas holder 11 from overheating when the temperature of the gas holder 11 or in the vicinity thereof is beyond the preset temperature T, is provided.
Patent JP-H07155395-A (JP)
Title: Moving car for water discharging
Inventor: GOTO KENICHI
IPC: B62D55/06
Filed: 1993-12-08
Abstract: PURPOSE:To enable the use of a moving car for water discharging at a fire point by discharging the radiation heat of flames applied on the crawler type moving car. CONSTITUTION:A water discharging device 1 is fixed to the upper part of the crawler type moving car 3. A cooler 2 fixed to the cooler 1 is so arranged as to enclose a controller 6 of the crawler type moving car 3 therein. The water discharging device 1 is connected by a hose 5 to a water feeder 4.
Patent JP-H04207840-A (JP)
Title: Transmission line receiver
Inventor: YAMANE MASANORI
IPC: H04L25/02
Filed: 1990-11-30
Abstract: PURPOSE:To confirm the transmission quality by recognizing the degree of error of a transmission signal as a clocking change. CONSTITUTION:The transmission signal received from a transmission line 1 is transmitted through a BPF circuit 3 having a pass bend within a transmission band. This signal is converted into a digital signal by a comparator 5. Meanwhile the transmission signal is transmitted through an LPF circuit 4 having a pass band out of the transmission band, and the level of this filter output is decided by the comparators 8-1, 8-2 and 8-3 having different deciding levels. These level deciding results are recorded by a recording circuit 9 together with the time. Thus it is possible to check the quality of the transmission signal by reading the level deciding results obtained at occurrence of a defect out of the circuit 9. Then the transmission quality is improved.
Patent JP-H07160096-A (JP)
Title: Corona discharge device for image forming device
Inventor: IINO TOMOHIRO
IPC: G03G15/02
Filed: 1993-12-09
Abstract: PURPOSE:To easily fit a corona discharge wire for the corona discharge device of an image forming device. CONSTITUTION:This corona discharge device of an image forming device is so constituted that a wire extension body 7 having wire extension members 9 is fitted to a wire mounting body 1. In this case, the wire mounting body 1 is provided with a pair of supports having engagement sections 5, and a corona discharge wire 3 with an elastic body 6 outside corona discharge effective length is connected to the sections 5. Furthermore, wire holding sections 9a are formed at the end of each member 9 for the extension of the wire 3.
Patent JP-H03200731-A (JP)
Title: Polymerization inhibitor for styrenes
Inventor: KOBAYASHI NORIMASA
IPC: C07C7/04
Filed: 1989-12-28
Abstract: PURPOSE:To provide the subject polymerization inhibitor composed of isoamyl nitrite or a combination of the said compound and 2,4-dinitrophenol or p-t- butylcathechol and capable of effective inhibition of polymerization by addition of a small amount thereof to a styrene during distillation process. CONSTITUTION:A polymerization inhibitor for styrenes composed of (A) isoamyl nitrite alone or a combination of the said compound and one or more selected from (B) 2,4-dinitrophenol and p-t-butylcathechol. As the combination of the components (A) and (B) can show a more excellent effect due to synergistic effect and inhibit polymerization effectively by addition of a small amount thereof, generation of nitrogen oxide gas can be remarkably reduced in a thermal disposal of styrene distillation residue. In case of using a combination of the components (A) and (B), each component dissolved respectively in a solvent may be added through the inlet of respective distillation columns separately or through the inlet of the first distillation column or a mixture of both the components may be added.
Patent JP-H10183310-A (JP)
Title: Non-oriented silicon steel sheet excellent in magnetic characteristic after stress relief annealing
Inventor: OZAKI YOSHIHIRO
IPC: C22C38/00
Filed: 1996-12-20
Abstract: PROBLEM TO BE SOLVED: To improve core loss characteristic, particularly after stress relief annealing by forming an Al thickened layer in an extreme outside surface layer within a specified range from the sheet surface, and specifying the maximum Al thickness. SOLUTION: This steel is composed of, by weight, <=0.01% C, <=3.5% Si, 0.1-1.5% Mn, 0.6-2.5% Al, <=0.1% P and <=0.01% S. Al thickened layer is formed in an extreme outside surface layer within 1μm from the steel sheet surface. The maximum Al thickness is to be >=1.1 times but <=2.0 times the average of the whole thickness of the sheet. Thereby, intruding at the time of stress relief annealing is prevented, and core loss characteristic is improved. In order to form an Al thickened layer in an extreme outside surface layer within an appropriate range, the dew point of mixed atmosphere of H2 and N2 during finish annealing is important, and in the case the scale on the sheet surface is almost completely removed, the dew point is set at <=-10 deg.C. In the case that some amount of scale is remained, it is necessary further to lower the dew point.
Patent JP-H11159378-A (JP)
Title: Solenoid valve drive device
Inventor: KONO KOZO
IPC: F02M51/06
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To output a failure diagnosis pulse signal capable of detecting even the partial short-circuit accident or deterioration of a solenoid valve with a low cost and small-sized circuit construction. SOLUTION: This drive device 1 on-off controls the drive current of a solenoid valve 3 coil 3A by a field effect transistor 4. A pulse voltage signal P showing that counter electromotive force induced in the coil 3A by a voltage detection circuit 6 comprising a constant voltage diode 61 provided between the drain and the source of the field effect transistor 4 exceeds a predetermined level is obtained, and the discharge of a capacitor 72 is controlled in response to the pulse width W1 of the pulse voltage signal P so as to output the failure diagnosis pulse signal MP of a pulse width W2 in response to the duration time of the counter electromotive force.
Patent JP-H06285372-A (JP)
Title: Production of catalyst for producing nitrile
Inventor: USHIKUBO TAKASHI
IPC: C07C253/24
Filed: 1993-12-13
Abstract: PURPOSE:To obtain the catalyst used to produce a nitrile by the vapor phase catalytic oxidation reaction of an alkane and ammonia by drying the soln. or the slurry containing Mo, V and Te by a spray-drying method or a freeze-drying method, pulverizing and heat-treating it. CONSTITUTION:In the production method of the catalyst used to produce a nitrile by the vapor phase catalytic oxidation reaction of an alkane and ammonia, the soln. or the slurry containing Mo, V and Te is dried by the spray-drying method or the freeze-drying method, and an obtained dried product is heat- treated and pulverized. The catalyst obtained in this way is capable of producing a desired nitrile at high yield using the alkane as a starting material without the presence of a halogenide or water, etc., in a reaction system, moreover, at a comparatively lower temp. of the order of 400-450 deg.C.
Patent JP-H11159972-A (JP)
Title: Alloy adding device
Inventor: NAKAI YASUHIRO
IPC: F27D3/10
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To provide an allot adding device wherein an alloy material is added to the central part of a melt by the alloy material is dropped from a position nearest to the melt in a crucible, and suppressing effect of induction magnetic field to the alloy material. SOLUTION: Related to an alloy adding device 10 wherein an alloy material is added to a melt melted in an induction furnace or a cold crucible furnace in vacuum or inactive gas atmosphere, a near cylindrical addition bucket 20 and an inverse tapered lid body 21 are provided, and the inverse tapered lid body 21 is vertically moved relative to the addition bucket 20, while an inverted conical guiding plate 22 fitted to the lower part, in outer periphery, of the addition bucket 20. A guide having an inclination angle almost equal to the gradient of the inverted conical guiding plate 22 is fitted to the upper part of a crucible, so that the alloy adding device is guided to the center part of melt in the pot with ease.  With the inverted conical guiding plate 22 comprising a heat-resistant metal material, heat-resistance characteristics improved further so that the alloy material can be dropped into a high-temperature melt in the pot from a position as near as possible.
Patent JP-2001159106-A (JP)
Title: Self-light emitting device for road
Inventor: OGAWA TOSHIHIKO
IPC: E01F9/553
Filed: 1999-12-01
Abstract: PROBLEM TO BE SOLVED: To provide a self-light emitting device, having superior general-purpose applicability for roads, by setting the functions from the outside. SOLUTION: In this self-light emitting device for roads by using a solar cell 6 is provided with, a booster power supply circuit 90 connected to a solar cell 6, a receiver 70 receiving function change signals transmitted from am external infrared remote control transmitter 200 by receiving a power supply from a booster power supply circuit 90, a decoder 54 decoding function change signals received from a receiver 70, and a function change circuit (MPU) 52 changing the functions of the self-light emitting device for roads, based on the function change signal decoded by the decoder 54 respectively as the features of the device.
Patent JP-H09185319-A (JP)
Title: Method and device for reproducing starry sky
Inventor: HERTHA KURT
IPC: G09B27/02
Filed: 1996-12-06
Abstract: PROBLEM TO BE SOLVED: To increase optical impressions on a constellation observation by a planetarium and to enable the visually handicaped pesson to have impressions on a starry sky even by acoustic reproduction by assigning different sounds to different starts in an optical phenomenon image. SOLUTION: This is a method for reproducing a starry sky and an optical device reproduces starts; and one independent sound is assigned to a different start in the optical phenomenon image of this device and one octave of music is assigned to individual spectral magnitude of the starts at this time. The upper register of a 4-point sound is assigned to stars emitting blue light of spectral magnitude O, a 3point sound to spectral magnitude B, a 2-point sound to spectral magnitude A, a 1-point sound to spectral magnitude F, a KATAKANA(square form of Japanese syllabary) octave to spectral magnitude G, a HIRAGANA(cursive form of Japanese syllabary) octave to spectral magnitude K, and a contraoctave to spectral magnitude M.
Patent JP-H03203316-A (JP)
Title: Epitaxial wafer and manufacture thereof
Inventor: HOSOKAWA YASUO
IPC: H01L21/205
Filed: 1989-12-29
Abstract: PURPOSE:To diminish the development of strain, defects at the junction in a system having unmatched lattice by a method wherein the changing gradient in composition in an overshoot structure (corresponding to the changing gradient of lattice constant) is made more gentle. CONSTITUTION:After the epitaxial formation of lattice constant transition layers C, D (2) on the surface (a) of a substrate A (1) in lattice constant alpha, an epitaxial layer B (3) in a specific lattice constant beta is mounted on the surface (a). The lattice constant is gradually changed from the surface (a) to (c) so that the lattice constant(r) at the point (c) may exceed beta in the layer C. The excess level shall be 1/5-1/10 of the unmatched level of the lattice constant. After passing the point (c), the transition layer D (2) is provided to make the lattice constant approach to the lattice constant beta of the target layer B. The changing gradient shall be more gentle than that of the layer C so as to ease the strain. That is, about 1/3 of the gradient in the layer C will suffice for the changing gradient. In such a constitution, the changing rate of the lattice constant can be optimized, especially after exhibiting the overshoot structure, to be gradually changed thereby enabling a once imposed strain to be substantial ly eased.
Patent JP-H11170169-A (JP)
Title: Manufacturing method for semiconductor wafer and its device
Inventor: KURITA HISATSUGU
IPC: B24B37/30
Filed: 1997-12-12
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for a semiconductor wafer and its device for manufacturing a large aperture semiconductor wafer having low price and excellent flatness. SOLUTION: A vacuum device 32 sucks the periphery of a slice wafer W through a suction hole 29 provided in a riser part 28 of a rotary chuck table, and a pump device 38 presses about the whole face of the slice wafer W to hold it on the rotary chuck table 27 while keeping a waviness component, and then the surface of the slice wafer W is ground to grind the waviness component, and a stress acting on the slice wafer W after grinding is thus removed to remove a stress deformationis. Thus, an excellent flatness can be obtained after processing.
Patent JP-H11170976-A (JP)
Title: Occupant protector for vehicle
Inventor: OKANO NAOKI
IPC: B60R22/48
Filed: 1997-12-12
Abstract: PROBLEM TO BE SOLVED: To protect an occupant by appropriately holding the occupant by a seat belt when a vehicle is rolled over. SOLUTION: An occupant protective device for vehicles to protect an occupant by a seal belt 3 provided with a shoulder belt to restrain a shoulder part of the occupant and a lap belt 2 to restrain a waist part of the occupant, is provided with a roll over detecting means to detect that the vehicle is rolled over according to the output signal, etc., of a gravity sensor 8, etc., and a pre- tensioner 6 to drive the lap belt 2 in the tightening direction when the roll over detecting means detects that the vehicle is roller over, and the lap belt 2 is wound by the pre-tensioner 6 when the vehicle is rolled over.
Patent JP-H06219674-A (JP)
Title: Removing device of trash that gathers at threshold of elevator car
Inventor: YOHANESU DE YONGU
IPC: B66B13/30
Filed: 1993-12-17
Abstract: PURPOSE: To provide a device for removing rubbish gathered in the threshold of an elevator car in which the sound interrupting effect of the elevator car can be increased, and an air flow can be made smooth, and the operation of the door can be prevented from being interrupted. CONSTITUTION: In a device for removing rubbish gathered in a threshold 8 of an elevator car, the threshold 8 is provided with one or more holes 4 under a bottom guide 3 of the elevator car. A rubbish collecting container 7 or a bag is arranged under the hole 4 so that rubbish coming from the hole 4 in the threshold 8 can be gathered.
Patent JP-2000174365-A (JP)
Title: Laser oscillator
Inventor: TAKAMI JUNICHI
IPC: H01S3/08
Filed: 1998-12-02
Abstract: PROBLEM TO BE SOLVED: To obtain a laser oscillator, provided with an optical resonator constitution for obtaining laser beams with high output and superior in light-gathering characteristics. SOLUTION: This laser oscillator 1 is provided with a stable optical resonator, comprising an output mirror 7 consisting of a pair of plane mirrors of total reflection opposed to each other, positioned on both sides of a discharge area DA, and a rear mirror 9 of a concave mirror. A laser beam extraction hole 11 is formed in the center of the output mirror 7. A laser beam LB in the discharge area DA travels between the two total reflecting mirrors, the output mirror 7 and the rear mirror 9, and further gradually approaches the axis with efficiency and reliability. The laser beam LB is then projected from the small-diameter laser beam extraction hole 11, located in the center of the output mirror 7 through a totally translucent window 13. As a result, a small- diameter laser beam LB with high output and its energy density distributed symmetrically with respect to the axis is obtained.  Furthermore, the portions of the discharge area DA where no laser beam LB passes are reduced, and thus the efficiency of conversion into optical energy is enhanced.
Patent JP-H06167890-A (JP)
Title: Wet type electrophotographic developing device
Inventor: KURIO SADAO
IPC: G03G15/10
Filed: 1992-11-30
Abstract: PURPOSE:To obtain a wet type electrophotographic developing device effectively preventing the temperature rise of a developing liquid by taking a countermeasure so as not to transmit heat from the outside to the developing liquid in a developing tank as much as possible. CONSTITUTION:A supporting member 87 for supporting a developing liquid supplying pump driving motor 86 by a developing part is made of a heat insulting material. A driving shaft 91 connecting the developing liquid supplying pump driving motor 86 with a developing liquid supplying pump is made of the heat insulating material. It is desirable that the developing part is arranged in a position so as to be insulated from the heat generated by a fixing part by the flowing of air surrounding the fixing part.