baber/WOPTO huggingface dataset:
Patent JP-H104232-A (JP)
Title: Etalon and single longitudinal mode laser
Inventor: HIUGA HIROAKI
IPC: H01S3/109
Filed: 1996-06-18
Abstract: PROBLEM TO BE SOLVED: To prevent the variation of output caused by the change of ambient humidity and the change with time of a single mode laser by a method wherein a coat is formed on two light passing edge face by ion assisted deposition. SOLUTION: A coat, formed by alternately forming an HfO2 layer of high refractive index and an SiO2 layer of low refractive index by ion assisted deposition IAL, is provided on the two light passing edge faces 17a and 17b of a solid etalon 17. By using the solid etalon 17 formed by ion assisted deposition IAD, the variation of output of a laser beam 21, i.e., the output variation of the second harmonic 22 can be prevented even when there is a change of ambient humidity and variation with time. Also, the output variation of the second harmonic 22 caused by the change with time can be prevented.
Patent JP-H106861-A (JP)
Title: Inner mirror
Inventor: UMEDA FUMIO
IPC: B60R1/12
Filed: 1996-06-18
Abstract: PROBLEM TO BE SOLVED: To provide an inner mirror having an antenna for ensuring the wide working area of a receiver through simple constitution without marring an appearance design. SOLUTION: An inner mirror 3 is provided with a housing 12 in which a containing recessed part is formed and a reflection mirror 13 disposed at the opening part 12a of a housing 12 and reflecting light. An antenna 5 formed of a conductive wire, such as iron and copper, is arranged along the inner peripheral surface of the containing recessed part of the housing 12 and receives a radio wave transmitted from a transmitter. A receiving circuit 6 inputs a receipt signal from the antenna 5 arranged in the containing recessed part of the housing 12.
Patent JP-S5783338-A (JP)
Title: Machine tool working verification equipment
Inventor: MATSUDA YASUHISA
IPC: B23Q17/00
Filed: 1980-11-10
Abstract: PURPOSE: To prevent a work to be repeatedly machined for its determined frequency from inadvertent omission of machining by means of comparing the indication of the setting frequency to operate the machine tool about one work with that of the actual operating frequency of the machine.  
     CONSTITUTION: A working verification equipment (A) is affixed on a column 11 of a machine tool, such as tapping machine or the like. A setting indicator 2 and a frequency indicator 4 which are available for indicating frequency to implement tapping operation on one work are installed in front of the working verrification equipment (A). A frequency indicator 3 indicates make frequency of a limit switch 3 which is made every descent of a main shaft 17 to hold a tap 19. The working verification equipment (A) provides a control circuit in which when the number which is indicated on the frequency indicator 4 arrives at the numberwhich has been indicated on the setting indicator 2, signals are generated for returning the frequency indicator to zero, and further provides a chime to be actuated by means of those signals. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H08331521-A (JP)
Title: Motion detection circuit
Inventor: AIBA HIDEKI
IPC: H04N19/172
Filed: 1995-05-30
Abstract: PURPOSE: To provide a motion detection circuit by which an excellent temporary stop reproduction image is obtained when a laser disk of the MUSE system is temporarily stopped and reproduced. CONSTITUTION: A 2-frame detection signal Δ04 is obtained by finding a difference between a MUSE signal SO and a signal S4 delaying the signal SO by 2 frames. A 1-frame detection signal Δ02 is obtained by finding a difference between the MUSE signal SO and a signal S2 delaying the signal S0 by 1 frame. When an audio signal detection circuit 31 detects it that no audio signal is included in the MUSE signal SO, switches 311, 322 of a changeover circuit 32 are thrown to the position of terminal (b) to shut the 1-frame detection signal Δ02.
Patent JP-H054529-A (JP)
Title: Differential limit device for vehicle
Inventor: SHIRAISHI MASARU
IPC: B60K17/346
Filed: 1991-06-27
Abstract: PURPOSE:To perform the differential control in response to the structural characteristic of a vehicle and the like by controlling the differential limit actions based on the differential rotating speeds of an inter-axle differential and inter- wheel differentials when the vehicle speed is a preset value or above, and controlling the differential limit actions based on the output of an engine when the vehicle speed is the preset value or below. CONSTITUTION:In the power transmission system of a vehicle, a central differential 20 is arranged on a transfer 12, and front and rear differentials 21, 22 are arranged on front and rear axles 15, 17 respectively. The differentials 20-22 are controlled by a differential control unit 43 respectively based on input signals from a throttle sensor 32, a brake switch 31 and a manual switch 44. The differential control unit 43 controls the differential limit actions based on the differential rotating speeds of the inter-axle differential 20 and the inter- wheel differentials 21, 22 when the vehicle speed is a preset value or above. It controls the differential limit actions based on the output of an engine 10 when the vehicle speed is the preset value or below.
Patent JP-H09123747-A (JP)
Title: Viscous heater
Inventor: MORI HIDEFUMI
IPC: B60H1/08
Filed: 1996-06-18
Abstract: PROBLEM TO BE SOLVED: To facilitate manufacture of a viscous heater by fastening a plate, a housing main body, and either of front and rear housings together using a through bolt while stacking them one on another. SOLUTION: A front housing 1, a rear housing 2, and a rear housing main body 3 are fastened together with a through bolt 5 while being stacked one on another with a gasket 4 intervening between a rear plate 2 and the rear housing main body 3. A rear housing 6 comprises the rear plate 2 and the rear housing main body 3. A recess provided in the rear end face of the front housing 1 and the flat front end of the rear plate 2 together form a heating chamber 7. Also, the rear end face of the rear plate 2 and the inner surface of the rear housing main body 3 form a rear water jacket RW which serves as a rear heat radiating chamber adjacent the heating chamber 7. Therefore, the rear plate and the rear housing 3 have simple shapes and are easy to manufacture.
Patent JP-S5583497-A (JP)
Title: Step-out detector for pulse motor
Inventor: NISHIMURA HIDEO
IPC: H02P8/00
Filed: 1978-12-18
Abstract: PURPOSE:To operate step-out detection for the pulse motor efficiently by the method wherein, by giving a feedback pulse to the preset signal input terminal of a counter, the carry or borrow signal of a preset counter is utilized as abnormal condition detection signal. CONSTITUTION:Pulse motor 3 rotates in accordance with instruction pulses, and preset counter 9 counts instruction pulses from the preset values. When no step-out has occurred, before a carry signal is outputted from carry terminal 9d of preset counter 9, counting is operated again by preset pulse PR from pulse generator 6. Even when the direction of feeding is reversed in the middle, the first pulse is given to preset input terminal 9b, and no erroneous operation occurs. When a step- out has occurred, before preset pulse PR is given, a carry or borrow signal is outputted from ounter 9 and an alarm is given through alarm circuit 12.
Patent JP-H0448048-A (JP)
Title: Steel excellent in toughness in weld heat-affected zone and its manufacture
Inventor: SUZUKI SHUICHI
IPC: C21C7/00
Filed: 1990-06-15
Abstract: PURPOSE:To provide the weld heat-affected zone in a steel with toughness sufficiently satisfiable even by high heat input welding by specifying the chemical compsn. of a steel and dispersing oxide inclusions having a (Ti-Nb)(O-N) composite bonding phase with specified grain size into a matrix. CONSTITUTION:The compsn. of a steel is formed of, by weight, 0.03 to 0.20% C, 0.05 to 0.60% Si, 0.40 to 2.00% Mn, 0.003 to 0.050% Nb, 0.003 to 0.050% Ti, 0.0040 to 0.0080% N, 0.0005 to 0.0060% O and the balance Fe with inevitable impurities. In the matrix, oxide inclusions having a (Ti-Nb)(O-N) composite crystalline phase with <=0.5mum grain size are dispersed in the ratio of 0.001 to 0.100wt.%. This steel can be manufactured by subjecting an Nb-added steel in which the amt. of dissolved oxygen is regulated to 20 to 80ppm by predeoxidation and the amt. of dissolved nitrogen to 40 to 80ppm to Ti deoxidation immediately before pouring and executing continuous casting.
Patent JP-2000344346-A (JP)
Title: Powdery and granular material conveying device
Inventor: CHIBA AKITOKI
IPC: B65G53/36
Filed: 1999-06-04
Abstract: PROBLEM TO BE SOLVED: To smoothly convey a light granular and powdery material bit by bit in a specified amount at certain intervals from a flexible bag filled with a granular and powdery material having a small apparent density (light in weight). SOLUTION: A solenoid valve which has been closed is opened and a jet pump is actuated so that a gas stream flowing from the inlet to outlet is generated in a conduit pipe. At the same time, a baffle plate 8 is retracted for a prescribed time from the side wall inner surface of a hopper so that the horizontal section of the hopper is not narrowed, and such a condition is established that a light granular and powdery material does not generate a bridging phenomenon, which together with the hopper lower part being put in negative pressure, causes that portion of the granular and powdery material situated in the hopper upper part which weights light reaches the hopper lower part to be sent directly to a capturing apparatus, while that portion of the granular and powdery material accommodated in a bag 1 which weights light reaches the hopper upper part.  Because the baffle plate is closed before the lightweight granular and powdery material in the hopper lower part 4b goes out, the lightweight granular and powdery material in the hopper upper part does not flow into the hopper lower part.
Patent JP-H01321178-A (JP)
Title: Driving machine
Inventor: WAKABAYASHI MICHIO
IPC: B25C1/04
Filed: 1988-06-24
Abstract: PURPOSE:To abate the extent of penetration of dust or the like into the inside of a body from the outside air as well as to prevent any malfunction of a driving machine from occurring by using an exhaust port, making compressed air in a head side cylinder chamber escape to the outside and another exhaust port, making the compressed air in a return air storage chamber escape to the outside, together in combination. CONSTITUTION:A stroke piston 6 is suddenly going down by compressed gas out of a head side cylinder chamber 11, moving in the opening direction with the outside air at the initial midway, and an air escape value 21 moving in the closing direction immediately before this stroke piston 6 is reached to a bottom dead point is set up in a return air storage chamber 14. In this case, an exhaust port 20, making compressed air in the head side cylinder chamber 11, is made usable together with another exhaust port 20 making the compressed air in this return air storage chamber 14 in combination. In consequence, the number of exhaust ports 20 being opened to the outside air all the time can be lessened, and a position of the exhaust port 20 is separated from a driving part of a stopper whereby the extent of penetration of dust or the like into a body inner part of a driving machine can be lessened.
Patent JP-H0447902-A (JP)
Title: Manufacture of laminated material
Inventor: TAMURA YASUO
IPC: B27N3/04
Filed: 1990-06-15
Abstract: PURPOSE:To enhance the utilization of culm and obtain the laminated material concerned having arbitrary specific gravity, thickness, dimensions and extremely high mechanical strength by a method wherein culm layers, each of which is prepared by densely arranging culms in linear portion parallel to one another, are laminated to one another and, after that, formed under pressure through adhesive, which is prepared from the waste culms, leaves sheaths of true grasses. CONSTITUTION:Adhesive is prepared by dissolving the leaves or sheaths cut off the culms of true grasses, odds, which are left behind the cutting of the culms for linear portion, waste culms or cores developed at the removal of core in phenols and adding aldehyde compound and acid catalyst or alkali catalyst to the resultant solution. A plurality of linear culms are flattened without being cut off in the direction of fiber so as to form a plurality of flattened culms 2. By densely arranging a plurality of the flattened culms 2 parallel to one another, a flattened culm layer 3 is formed. After being applied with the adhesive, the flattened culm layers 3 are laminated to one another and then formed under pressure. When the adhesive, which is made from raw material consisting of the same culm and the like as the culm to be bonded, is used, the affinity at bonding becomes higher, resulting in obtaining laminated material 10 having much higher strength and allowing to produce laminated material 10 having arbitrary specific gravity, thickness and dimensions out of culms.
Patent JP-S5585058-A (JP)
Title: Semiconductor device
Inventor: KOTSUKAWA TAKASHI
IPC: H01L23/12
Filed: 1978-12-22
Abstract: PURPOSE: To prevent generation of excessive compression pressure near an outer circumferencial portion of an upper electrode, by a method wherein upper and lower electrodes are each mounted to both sides of a semiconductor substrate of a compression type semiconductor device, and the end portions of a surface at the side where the upper electrode contacts with a semiconductor are rounded.  
     CONSTITUTION: A compression type semiconductor device is formed in such a manner that discoid upper electrode 1 and lower electrode 2 are attached onto the both sides of an orbicular semiconductor 4 with solder 3. When applying compression pressure to the upper and lower electrodes, compression stress is produced on the whole surface of a surface where the semiconductor contacts with the upper electrode, but excessive compression stress is particularly generated to an outer circumferential portion of the upper electrode concentrically. Since the compression stress is lightened by rounding the end portion 1a of the surface where the upper electrode 1 contacts with the semiconductor 4, the breakage and cracks of the semiconductor can be prevented. It is preferable that the upper electrode is manufactured by copper or a copper alloy with excellent heat and electric conductivity to which carbon fibers are buried. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H11351912-A (JP)
Title: Optical encoder
Inventor: SENDA MICHIAKI
IPC: G01D5/36
Filed: 1998-06-05
Abstract: PROBLEM TO BE SOLVED: To provide an optical encoder which is free from dust deposition to a rotating disk. SOLUTION: The optical encoder is provided with a rotating shaft 5 supported at the bearing 6 of a housing 1, a rotating disk 8 fixed to the rotating shaft 5, a light emitting element 10 installed to the housing 1, a light receiving element 12 installed to the housing 1 via a sub-substrate to receiving light from the light emitting element 10 transmitted through or reflected at the rotating disk 8, and a main substrate 13 with a circuit to detect the amount of rotation or a rotational position from the light received by the light receiving element 12 on board installed to the housing 1. In this case, a holder 9 with a cover part 9a formed in a ring shape to be engaged with the periphery of the main substrate 13 and with a light emitting element holding part 9b formed on the cover part 9a is installed to the housing 1.  Therefore, as the periphery of the rotating disk 8 is covered with the holder 9, dust does not deposit to the rotating disk 8, and it is possible to detect rotation accurately.
Patent JP-H10330673-A (JP)
Title: Erasing ink composition
Inventor: NAKAMURA HIROYUKI
IPC: C09D11/17
Filed: 1997-05-29
Abstract: PROBLEM TO BE SOLVED: To obtain an erasing ink composition capable of producing handwriting easily erasable by rubbing with an eraser and having improved usability and applicability to all kinds of paper by compounding a specific coloring agent, a rubber latex and water as essential components. SOLUTION: This composition contains a coloring agent, a rubber latex and water as essential components. The coloring agent is obtained by dispersing colored fine particles, which consist of microcapsules enclosing a coloring matter selected from an oil-soluble dye, a dispersing dye and a pigment or microcapsules enclosing an oily medium supporting the coloring matter in a homogeneous state, in an aqueous medium containing rubber latex. Preferably, the colored fine particles are microcapsules having an average particle diameter of 0.1-10 μm, and they are used in the range of 1-30 wt.% of the ink composition.
Patent JP-S5781820-A (JP)
Title: Emulsifier
Inventor: SAKUMA TSUTOMU
IPC: C10L1/32
Filed: 1980-11-11
Abstract: PURPOSE:To continuously produce stable emulsified fuel, by mixing fuel oil with emulsifying agent by using an orifice having a reflecting plate, and then by storing the mixed liquid in a mixed liquid storing tank. CONSTITUTION:The following apparatuses are provided on a feeding line, i.e. a feed pump 17 having an emulsifying agent supplying pipe 14 at its suction side, an orifice having a reflecting plate 20 at its tip and a mixed liquid storing tank 19 storing mixed liquid of the 1st liquid to be treated and an emulsifying agent. The emulsifying agent from an emulsifying-agent supplying pipe 14 and the liquid to be treated from a fuel trak 6 are jetted from the orifice 18 to be mixed violently each other, and then the mixed liquid is temporarily stored in the mixed liquid storing tank. Thus, stable emulsified fuel is produced.
Patent JP-S5781228-A (JP)
Title: Optical beam scanner
Inventor: FUNATO HIROYOSHI
IPC: G02B26/10
Filed: 1980-11-10
Abstract: PURPOSE:To lower costs, and facilitate wiring of a light source lighting circuit by determining the direction of a scanning beam reflected by a concave mirror in the direction intersecting with the rotating plane of a hologram lens disc. CONSTITUTION:A diffracted laser luminous flux focusing constantly at the point P is made into a divergent laser luminous flux which is made incident to a concave mirror 5, after which it is reflected as a scanning beam SB by the effect of the mirror 5, and focuses toward a scanning plane 6. The point P where the laser luminous flux diffracted by a hologram lens disc 7 focuses once, the center Cn of curvature of the mirror 5, and the scanning line by the beam SB are on the same plane 13. Thereby, the beam SB is focused at arbitrary points on the scanning line on the scanning plane.
Patent JP-H0322738-A (JP)
Title: Control voltage generating circuit for afc circuit in 4-phase psk demodulator
Inventor: KOBAYASHI KAZUHIKO
IPC: H04L27/22
Filed: 1989-06-20
Abstract: PURPOSE:To reduce the circuit scale of the 4-phase PSK demodulator while securing the stable operation of an automatic frequency control(AFC) function by inputting sampled data with a double-speed stock, and converting the data into equivalent data obtained by sampling the data with a 4-fold speed clock and outputting the converted data. CONSTITUTION:A data generation part 71 obtains data on both sides of an eye pattern opening part by arithmetic according to the demodulated symbol data of the double-speed clock and performs interpolation by using the arithmetic data to generate the equivalent demodulated data of the four-fold speed clock. A four-fold speed clock operation type control voltage generation part 72 is operated with the equivalent four-fold speed clock demodulated data to generate a control voltage Vc for the local oscillator 75 of an AFC circuit based on the double-speed clock demodulated symbol data, thereby performing stable AFC operation. Consequently, the circuit scale of the PSK demodulator is decreased to reduce the size and the stable operation of the AFC function is secured.
Patent JP-S6314191-A (JP)
Inventor: ISHIMI KOICHI
IPC: G09F13/22
Filed: 1986-07-07
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-H0388714-A (JP)
Title: Production of acicular aragonite crystal type calcium carbonate
Inventor: SHIBATA HIROSHI
IPC: D21H17/67
Filed: 1990-06-15
Abstract: PURPOSE:To obtain the above calcium carbonate of a large grain size by adding a soluble phosphoric acid compd. to an aq. slurry of Ca(OH)2 mixed with aragonite crystal type calcium carbonate when gaseous CO2 is blown into the aq. slurry to produce calcium carbonate. CONSTITUTION:An aq. slurry of Ca(OH)2 mixed with aragonite crystal type calcium carbonate is prepd. and a soluble phosphoric acid compd. is added to the slurry. Gaseous CO2 is then blown into the slurry to carry out carbonation. By this method, acicular aragonite crystal type calcium carbonate of such a large grain size as about 10-100mum major axis size is obtd. The molar ratio between the aragonite crystal type calcium carbonate and the Ca(OH)2 slurry may be regulated to (1:7)-(1:5,000).
Patent JP-H0323986-A (JP)
Title: Thermal recording material
Inventor: TSUGAWA HIROAKI
IPC: B41M5/337
Filed: 1989-06-22
Abstract: PURPOSE:To enhance light fastness by incorporating a specific compound in a thermal recording material wherein a thermal color forming layer based on a leuco dye and a coupler is provided on a support. CONSTITUTION:A color forming compound, a coupling compound and compounds represented by formulae (I), (II) are separately ground and dispersed along with a binder and, if necessary, other additives by a dispersing machine such as a ball mill attritor or a sand mill and the resulting dispersions are mixed to prepare a coating solution for a thermal color forming layer and this coating solution is applied to a support such as paper, a plastic sheet or synthetic paper in an amount of 5 - 40g/m<2> by a bar coater or a blade coater and dried. This thermal recording material containing the compounds represented by the formulae (I), (II) becomes markedly excellent in the light fastness of its background and that of a developed color image by the synergistic action of the oxidation inhibiting action of the compound represented by the formula (I) and the ultraviolet absorbing action of the compound represented by the formula (II).
Patent JP-S5946357-A (JP)
Title: Method of reducing engine roughness by controlling rate of exhaust-gas recirculation
Inventor: MOTOI TOSHIAKI
IPC: F02M25/07
Filed: 1982-09-10
Abstract: PURPOSE:To enable to prevent occurrence of engine roughness with high accuracy, to lower the specific fuel consumption of an engine and to keep the engine output high, by detecting variation of the indicated mean effective pressure for each cylinder during one cycle of engine operation and deviation of the indicated mean effective pressures of a plurality of cylinders, and controlling the rate of exhaust-gas recirculation for each cylinder on the basis of the variation and deviation of the indicated mean effective pressures. CONSTITUTION:The rate of exhaust-gas recirculation required for the actual operational conditions of an engine is determined from the engine speed N detected from a crank signal by means of a control circuit 10, the indicated mean effective pressure calculated by a Pi-meter 9 and the throttle opening detected by a throttle opening sensor 7. On the basis of the rate of exhaust-gas recirculation thus determined, a required amount of exhaust gas is recirculated from an exhaust pipe 6a to cylinders via exhaust-gas recirculation control valves 6 in synchronism with the crank signals. In controlling the rate of exhaust-gas recirculation, it is judged that engine roughness caused by variation of the indicated mean effective pressure Pi during one cycle of engine operation or its deviation between the cylinders is within a tolerable range in case that they are lower than a prescribed tolerable value.