baber/WOPTO huggingface dataset:
Patent JP-H03185231-A (JP)
Title: Valve timing control device for engine
Inventor: TAKADA NAOYA
IPC: F02D13/02
Filed: 1989-12-14
Abstract: PURPOSE:To improve the hot starting performance by controlling variable the timing of a suction valve and an exhaust valve responding to the rotation frequency of the engine, and increasing the time area of overlapping the suction and the exhaust valves in a hot starting time. CONSTITUTION:The timing of a suction valve and an exhaust valve in an engine is set variable by using a variable mechanism 30. And the rotation frequency of the engine is detected by a detecting means 22. Furthermore, the variable mechanism 30 is controlled by a control means 81 to make the timing of the suction valve and the exhaust valve into a timing responding to the engine rotation frequency. And in a hot starting of the engine, the control of the variable mechanism 30 by the control means 81 is corrected by a correcting means 82 so as to increase the time area of overlapping the suction and the exhaust valves. As a result, the scavenging efficiency in the overlapping period of the suction and the exhaust valves is improved in a hot starting time so as to suppress a smoking of the ignition plug, and a poor starting can be prevented.
Patent JP-H01170056-A (JP)
Title: Semiconductor chip connection structure
Inventor: ARAI KAZUMASA
IPC: H01L21/52
Filed: 1987-12-25
Abstract: PURPOSE:To prevent the generation of a leakage current and an erroneous operation at the time of intrusion of water content from the interfaces between resin parts and lead frames by a method wherein the lead frames, on which a photodetector is adhered and fixed, is prevented from being used for an electrical connection. CONSTITUTION:In case a photodetector made using a canal isolation method is applied to a resin-sealed IC, a lead frame 2, on which the photodetector 1 is adhered and fixed, is treated with the so-called NC pin that is not used for an electrical connection and an insulating film is formed of an SiO2 sputtered film on parts, at which the photodetector 1 on the lead frame 2 is adhered and fixed, of lead frames on the other side. Thereby, an effect to characteristics due to the intrusion of water content from the interfaces between resin parts and the lead frames, which is caused by a moisture-resistant high-acceleration test, is reduced, a leakage current is suppressed at a fine amount, a semiconductor chip connecting structure is formed into a structure that hardly performs erroneous operations and the improvement of a moisture resistance is contrived.
Patent JP-H02175934-A (JP)
Title: Belt for conveying tray and production thereof
Inventor: KAWASAKI YOSHIO
IPC: D01H9/18
Filed: 1988-12-24
Abstract: PURPOSE:To surely convey trays in not only the same plane but also in a three- dimensional passage by providing a belt for conveying the trays with a specific three-layer structure and suitably setting a positional relation between guide members for guiding the trays and the conveying belt. CONSTITUTION:A slide contact belt layer (13b) is located on the inside of conveying belt layers (13a) in the end part facing trays 9 of a conveying belt having a three-layer structure in which the slide contact belt layer (13b), having low friction properties and formed of a hard material, such as nylon, having a low friction coefficient is arranged between the contact conveying belt layers (13a), having high friction properties and formed of a material, such as soft rubber, having a high friction coefficient. The ends of the conveying belt layers (13b) are formed into an oblique shape directing to the end of a boundary surface with the slide contact belt layer (13b) at the end facing slide guides 36.
Patent JP-H02282215-A (JP)
Title: Optical scanner
Inventor: ARITAKE TAKAKAZU
IPC: G06K7/10
Filed: 1989-12-19
Abstract: PURPOSE:To obtain the optical scanner which allows the sufficient miniaturization of the device by a scanning pattern generating means provided with a pair of reflection type holograms to face each other at both ends of a plane mirror disposed in the central part so as to intersect approximately orthogonally with each other. CONSTITUTION:The scanning pattern generating means 41 is constituted of the plane mirror 42 in the central part and a pair of the reflection type holograms 43, 44 disposed to face each other at both ends thereof. The mirror and the holograms are disposed together with pars, such as concave mirror 18 and polygonal mirror 23, in a housing 48. Bar codes 50a are attached to merchandise 50 existing above a reading window 30. A laser beam L1 is further reflected by a micromirror 51 provided on the concave mirror 18 and is made incident to the polygonal mirror 23. The laser beam is thereafter diffracted or reflected by any of the reflection type hologram 43, the plane mirror 42 or the reflection type hologram 44 constituting the scanning pattern generating means 41 to form the laser beam L2 which is further diffracted by the reading window 30 to the laser beam L3. This laser beam is emitted from the window 30 and scans the bar codes 50a of the merchandise 50.
Patent JP-H01170755-A (JP)
Title: Fuel injection nozzle
Inventor: NAKAGOME AKIRA
IPC: F02M61/18
Filed: 1987-12-25
Abstract: PURPOSE:To facilitate forming for a nozzle hole communicating chamber which requires precision by fitting a plug partitioning the nozzle hole communicating chamber in a through hole where a throttle portion projecting from the forward end peripheral portion of a needle valve inserted in a nozzle main body is inserted. CONSTITUTION:A nozzle main body 31 of a fuel injection nozzle includes a valve seat portion 5 where the forward end peripheral portion 7 of a needle valve 2 is seated and a through hole 33 adapted to partition the peripheral side of a nozzle hole communicating chamber 32 by inserting a throttle portion 9 projected from the forward end peripheral portion 7 therein. In the thus constructed fuel injection nozzle, a plug 34 having a designated length to partition the nozzle hole communicating chamber 32 from the outside in the axial direction is fitted in the through hole 33. At the time of manufacturing the fuel injection nozzle, the through hole 33 is bored from the opposite side in such a manner as to position on the same axis as the valve seat portion 5 of the nozzle main body 1, and the plug 34 is fitted in the through hole 33 and welded thereto. At this time, the fitting depth is controlled in such a manner that when the needle valve 2 is seated, a designated space S is formed in the axial direction between the needle valve 2 and the throttle portion 9.
Patent JP-H08178532-A (JP)
Title: Batch type heat processing furnace
Inventor: SHIMOZATO YOSHIKAZU
IPC: F27B1/00
Filed: 1994-12-28
Abstract: PURPOSE: To provide a batch type heat processing furnace of which size is compact and in which material to be processed can be heated uniformly in the case of increasing its temperature, soaking heat and decreasing its temperature. CONSTITUTION: A batch type heat processing furnace in which a heater 6 is arranged at at least a side wall 5 of side walls, a ceiling and a hearth is constructed such that supporting members 7 for materials W to be processed within the furnace are arranged in a predetermined spacing in a vertical direction and concurrently there are provided cooling pipes 8 and auxiliary heaters 9 with the processing materials being held therebetween.
Patent JP-H08186360-A (JP)
Title: Printed wiring board
Inventor: MORIMOTO YOSHINOBU
IPC: H05K3/34
Filed: 1994-12-28
Abstract: PURPOSE: To increase solder attached to the lead of an electronic part in volume when the lead is made to pass through a molten solder tank so as to surely connect the lead to a conductive foil pattern by a method wherein a bridging-preventing solder- attached resist layer provided with a circular or elliptical cutout corresponding to a land is formed overlapping a first solder-attached resist layer. CONSTITUTION: When a part lead connecting land 5 is made to pass through a molten solder tank, solder is attached to a part lead 8 inserted into a part insertion hole 2 and the land 5. When the land 5 is made to pass through the molten solder tank, solder 9 is moved towards a part lead 8 by the action of its surface tension basing on a first solder-attached resist layer 3 formed around the land 5 and a bridging- preventing solder-attached resist layer 4 which is provided with a circular or elliptical cutout corresponding to the land 5 and formed overlapping the first solder-attached resist layer 3, and solder attached to both the part lead 8 and the part connecting main land 5 can be secured large enough in volume, so that the lead 8 and the land 5 are enhanced in soldering strength between them. Therefore, the connection of the lead 8 of an electrical part or the like with the lead connecting land 5 is improved in strength.
Patent JP-H05169249-A (JP)
Title: Nitrogen seal jetting type soldering device
Inventor: YOKOYAMA TORU
IPC: B23K1/08
Filed: 1991-12-11
Abstract: PURPOSE:To provide a nitrogen seal jetting type soldering device, in which the nitrogen atmosphere necessary for executing the soldering process can surely and easily be obtd. in the upper part of the soldering vessel with a small quantity of the nitrogen gas. CONSTITUTION:Above the upper surface of a soldering vessel 8' and below a conveying line L for conveying materials to be soldered, nitrogen gas supplying pipes 14 for supplying the nitrogen gas are arranged.
Patent JP-H09145808-A (JP)
Title: Magnetic sensor
Inventor: MITSUBE MASANORI
IPC: G01R33/02
Filed: 1995-11-21
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic sensor that can be sufficiently improved in external magnetic field detecting sensitivity only by the simple addition of members in the case of making a current flow to an amorphous magnetic wire and detecting only the voltage part by inductance out of voltage generated by this current to detect the axial external magnetic field of the wire from the change of the detected voltage. SOLUTION: A current is made to flow to an amorphous magnetic wire 1, and only the voltage part eL by inductance out of voltage generated by this current is detected to detect the axial external magnetic field H of the wire 1 from the change of the detected voltage. In a magnetic sensor of such constitution, material 2, 2 of high permeability are fitted to a head part of the sensor, or a pair of material of high permeability are provided on a base, and the amorphous magnetic wire is connected between these material of high permeability.
Patent JP-2000155026-A (JP)
Title: Sun position sensor
Inventor: MAKINO MAKOTO
IPC: G01S3/784
Filed: 1998-11-18
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive sun position sensor capable of detecting the accurate direction of the sun under various unfavorable conditions. SOLUTION: This sensor is provided with a first prism 1a formed with a first slant face 2a having the inclination equal to the critical angle or the inclination in the prescribed range around the critical angle against a bottom face, a first light detecting element 6a converting the incident light from the first slant face of the first prism 1a into the electric signal, a second prism 1b formed with a second slant face 2b having the inclination equal to the critical angle or the inclination in the prescribed range around the critical angle against the bottom face and arranged so that the second slant face 2b is made parallel with the first slant face 2a of the first prism 1a when the second prism 1b is rotated by 180 deg.  with the line perpendicular to the bottom face used as an axis, a second light detecting element 6b converting the incident light from the second slant face 2b of the second prism 1b into the electric signal, and sun direction signal generating means 8, 9 generating the signals indicating the direction of the sun based on the signals from the first light detecting element 6a and the second light detecting element 6b.
Patent JP-H09163825-A (JP)
Title: Rice transplanter
Inventor: NISHIDA KAZUHIKO
IPC: A01C11/02
Filed: 1995-12-18
Abstract: PROBLEM TO BE SOLVED: To enable automatic control of a seedling-feed table for feeding rice plant seedlings from a spare seedling storage unit to a seedling platform without trouble even when the feed table would be in contact with a seedling receiver in the platform. SOLUTION: A seedling guide 41c of a seedling-feed table 41 for feeding rice plant seedlings to a seedling platform 13 is freely swingably equipped with a moving part 41e. While another moving part 60d is provided on a receiving part 60 on the platform 13. When the seedling-feed table 41 moves to the platform 13 from the lower side to the upper side and thus is brought into contact with the receiving part 60, the feed table 41 moves as it pushes up the moving part 60d with its moving part 41e to push it back. When the seedling-feed table 41 moves toward the seedling platform 13 from the upper side to the lower side and is in contact with the seedling receiver 60, the feed table 41 moves, as the moving part 41e is pushed up and swung with the moving part 60d.  After the feed table moves, both moving parts 60d and 41e automatically go back to the original positions by their own righting moments.
Patent JP-H04192986-A (JP)
Title: Video interphone
Inventor: FURUKAWA SATOSHI
IPC: G06T3/40
Filed: 1990-11-27
Abstract: PURPOSE:To surely and easily monitor visitors with simple constitution by macrodisplaying only the prescribed region indicated by a cursor of the entire part of the region to be subjected to image pickup on a monitor. CONSTITUTION:The cursor K of a prescribed size is displayed near the face of the visitor displayed on the screen of the monitor 24 by a cursor display control means 27. Only the prescribed region K' of the entire part of the region to be subjected to image pickup is written into an image memory 22 by the sampling signal from an A/D conversion control means 25 in accordance with the control signal from the control means 27 and the image signal stored in the memory 22 is read out at the timing different from the timing at the time of writing by the reading out control signal from a reading out control means 26, by which only the prescribed region K' is macrodisplayed on the monitor 24. The visitor is surely and easily visibly monitored with the simple constitutmagnetic on in this way.
Patent JP-H07191140-A (JP)
Title: Obstacle detecting device for vehicle
Inventor: SUDO SATORU
IPC: B60R21/00
Filed: 1993-12-24
Abstract: PURPOSE:To measure a relative distance between a front end face or rear end face of a vehicle and an obstacle with high accuracy and without a dead zone by providing a detecting sensor for detecting the obstacle in front or in the rear of a vehicle, a travel distance detecting means for detecting a travel distance of the vehicle, and a distance calculating means for calculating the relative distance to the obstacle. CONSTITUTION:During forward traveling or rearward traveling of a vehicle, a detecting sensor 3 successively measures a distance between itself and an obstacle, and a travel distance detecting means 5 detects a vehicle travel distance during that period. A distance calculating means 10 substitutes preceding and succeeding measured distance data detected by the sensor 3 and vehicle travel distance data during that period detected by the means 5 into an equation, y=R<2>n-R<2>n+1-d<2>/2d, so as to calculate a relative distance (y) of the obstacle to a front end face or a rear end face of the vehicle. Herein, Rn represents a sensor distance to the obstacle at a timer time tn(n=0, 1, 2,...), and Rn+1 represents the sensor distance to the obstacle at a next timer time tn+1, while (d) represents a rearward traveling distance of the sensor 3 between the time tn and the time tn+1.
Patent JP-2000153800-A (JP)
Title: Spacecraft separating mechanism
Inventor: KUNII YOSHINORI
IPC: B64G1/64
Filed: 1998-11-19
Abstract: PROBLEM TO BE SOLVED: To inhibit the generation of disturbance that rotates a body during separation in orbit while fulfilling load conditions during lift-off, by first loosening the strong tension applied by a bolt to a clamp band and restricting it with a stopper, and then completely relieving the tension and separating the body. SOLUTION: When a spacecraft separates in orbit, bolt cutters 7 are first activated to cut a bolt 5 so that the tension of clamp bands 3, 4 decreases. As they contract the gap increases. The distance between the clamp bands can be set by a stopper 10 so that the necessary level of tension remains to hold the body. Next, when bolt cutters 8 are activated to cut a bolt 6, the disturbance force proportional to the residual tension is generated in the direction of the bolt 6 from the bolt 5. However, this residual tension is able to be far less than the tension during lift-off, so generation of moment disturbance is able to be kept to a harmless level.
Patent JP-H03188366-A (JP)
Title: Method for analyzing mixed gas using electrochemical gas sensor
Inventor: HITOMI SHUJI
IPC: G01N27/416
Filed: 1989-12-19
Abstract: PURPOSE:To make it possible to analyze gas comprising many components by using the same number of sensors as the intended components wherein diaphragms having different gas permeabilities are mounted, simultaneously aligning the outputs of the sensors in the mixed gas, and computing the constituting ratio of the mixed gas. CONSTITUTION:A sensor is composed of, for example, a main body 1 comprising ABS resin, an electrolyte 2 comprising the mixed aqueous solution of acetic acid and calcium acetate, a working electrode 3 comprising platinum (Pt), a counter electrode 4 comprising lead dioxide (PbO2), a reference electrode 5 comprising PbO2 which is provided in the vicinity of the working electrode 3 and a diaphragm 6. The sensor using a 'Teflon(R)', film as the diaphragm 6 is made to be the sensor A, and the sensor using a polyethylene film is made to be the sensor B. The potential of the working electrode 3 is set at -300 mV with respect to the reference electrode. The output in the mixed gas of CO and N2 or H2 and N2 whose mixing ratio is known is measured in order to obtain the output constants for CO and H2 in the sensors A and B.
Patent JP-H11164592-A (JP)
Title: Exciting circuit of stepping motor
Inventor: TERANISHI TOSHIHIRO
IPC: H02P8/10
Filed: 1997-11-28
Abstract: PROBLEM TO BE SOLVED: To reduce power consumption, thus the calorific value of windings. SOLUTION: Non-energizing time for which the phases of windings W1-W4 to be excited are not energized during one-step operation is provided. Power consumption can be reduced by an amount equivalent to a voltage which is not applied to the windings W1-W4 during a non-energizing time, and further more the calorific value of the windings can be reduced.
Patent JP-H10174867-A (JP)
Title: Catalyst for cleaning exhaust gas and purifying method of exhaust gas
Inventor: OZAKI YUKIO
IPC: B01J27/185
Filed: 1996-11-25
Abstract: PROBLEM TO BE SOLVED: To provide a catalyst for cleaning an exhaust gas, which is capable of obtaining a high nitrogen oxide removing ratio to the exhaust gas containing reducing components containing a hydrocarbon and carbon monoxide, oxygen in a quantity exceeding the stoichiometric quantity necessary for oxidizing the reducing components and nitrogen oxide and is excellent in high temp. durability under the coexistence of moisture and SOx , and a cleaning method of the exhaust gas using the same. SOLUTION: The catalyst is a catalyst prepared by carrying iridium (a), at least one kind of an element (b) selected from a group composed of an alkali metal and an alkaline earth metal and zirconium (c) on titanium oxide and phosphorus (d) is further carried on the catalyst. The exhaust gas is brought into contact with the catalyst.
Patent JP-H05145166-A (JP)
Title: Circuit and method for detection luminance power of semiconductor laser
Inventor: SAKURAI TATSUAKI
IPC: G11B7/125
Filed: 1991-11-20
Abstract: PURPOSE:To obtain exact detecting signals of luminance power by increasing the photocurrent by use of two photodetectors when detecting a reproducing power, and correlatively decreasing the photocurrent by use of one photodetector when detecting a recording or erasing power. CONSTITUTION:Two photodetectors 11a and 11b, first and second ones, are used. When the luminance power is small but a reproducing power should be detected, the photocurrent is increased by utilizing the photocurrents received by both of the photodetectors 1a and 1b. When the luminance power is large for recording or an erasing power should be detected, the photocurrent received by the photodetector 1a, one of the two, is utilized. The variation of the photocurrent is then reduced when each power is detected, thus making it difficult for the circuit systems to be affected by the offset drifting or the like. The exact detecting signals for luminance powers can be obtained accordingly.
Patent JP-H10169950-A (JP)
Title: Supply method of waste to incinerator
Inventor: HAZAMA KEIZO
IPC: F23K3/00
Filed: 1996-12-10
Abstract: PROBLEM TO BE SOLVED: To enable stable incineration by uniformizing a thermal load within an incinerator to keep the temperature of an exhaust gas from an outlet of the furnace by a waste supplying method through a conveyor and an air seal device. SOLUTION: An exhaust gas temperature detector 6 provided at an outlet 5 of an incinerator 1 is connected to a motor 7 of a sharply inclined type conveyor 2 adapted to convey wastes by a fixed amount with a sharp inclination thereof and a rotary motor 8 of an air seal device 4 so constructed to separate the wastes by a fixed amount to be supplied with an impeller 3 to the incinerator 1. The rotational speed of the conveyor motor 7 and the motor 8 of the air seal device are controlled based on the temperature of an exhaust gas detected by the temperature detector 6. Thus, the wastes can be supplied according to the state of combustion within the furnace. The wastes are scattered to be subdivided when the exhaust gas temperature is high at the outlet of the furnace and the opposite operation is performed when the exhaust gas temperature is low.  This can prevent incomplete combustion of the wastes thereby realizing a stable combustion with a very high combustion efficiency.
Patent JP-H10170095-A (JP)
Title: Engine driven heat pump
Inventor: ENDO KOICHI
IPC: F25B27/00
Filed: 1996-12-10
Abstract: PROBLEM TO BE SOLVED: To obtain an engine driven heat pump being switched between cooling and warming by circulating a refrigerant through an engine driven compressor in which warming capacity is enhanced by increasing the quantity of heat being absorbed from the outer air and the exhaust heat from the engine when the outer air temperature is low. SOLUTION: An intake heat-exchanger 14 is disposed in the way of an engine intake tube 15 on the downstream side of an air cleaner 17 and high temperature, liquid refrigerant flows from an indoor heat-exchanger 8 through the intake heat-exchanger 14 at the time of warming and overcooled through heat- exchange with the engine intake air. The temperature raised engine intake air increases engine load to cause increase of engine exhaust heat but the exhaust heat is collected by engine cooling water and utilized for heating the refrigerant through a refrigerant heater 5 disposed on the downstream side of an indoor heat-exchanger 6.