baber/WOPTO huggingface dataset:
Patent JP-2000085179-A (JP)
Title: Optical print head
Inventor: NAKAHARA TOSHIAKI
IPC: G02B5/20
Filed: 1998-09-11
Abstract: PROBLEM TO BE SOLVED: To prevent scratching of a filter holder with an edge section of a top face of an arc tube and occurrence of dust thereby and to replace the arc tube without exposing a filter to the open air. SOLUTION: A filter holder 8 is provided between a light source 2 and a recording medium and holds a plurality of filters R, G, B each passing a light having a predetermined wavelength of the light source 2 therethrough. Each filter R, G, B is selectively positioned on an optical passage L. A base body 9 comprises light passing holes 12, 13 on the optical passage L and only the filter holder 8 is installed in the base body 9 separated from the light source 2 and a light imaging means 14 such that the filter holder 8 is slidably supported therein. An optical print head collects the light from the light source 2 in synchronism with the movement relative to the recording medium by using an SLA 14 and forms an image on the surface of the recording medium to exposed the surface.
Patent JP-H0599098-A (JP)
Title: Fuel injection nozzle
Inventor: HATTORI KIMITO
IPC: F02B3/06
Filed: 1991-10-07
Abstract: PURPOSE:To prevent carbon from coming in the inside of a nozzle body. CONSTITUTION:An axial section 10 formed at the tip end of a nozzle needle 3 so as to be disposed in an injection port 9, is made up of an equal diameter section 14 to which its stem stays identical in diameter for the specified length L from the upstream end 13 of the injection port 9, and of a different diameter section 16 which is provided closer to a vortex flow chamber side of a diesel engine than the equal diameter section is, wherein a plural number of cutouts 15 is formed on the outer circumference of the different diameter section, and a throttle section 18 throttling a passage between the axial section 10 and the inner circumference of the injection port 9, is formed between the outer circumference of the equal diameter section 14 and the inner circumference of the injection port 9.
Patent JP-H02105549-A (JP)
Title: Inner lead bonding device
Inventor: NAKAMURA SHINICHI
IPC: H01L21/60
Filed: 1988-10-14
Abstract: PURPOSE:To reduce any damage to a semiconductor element by making bonding load variable optionally during the bonding and improve the intensity of bonding by controlling optionally a fluid pressure applied to a pressure cylinder in terms of base. CONSTITUTION:After performing the alignment between a film carrier system circuit substrate inner lead 16 and an electrode in a semiconductor element 5, bonding load is generated by a pressure cylinder 1 and then, in an inner lead bonding device which is heated by a bonding tool and is joined under pressure, a fluid pressure supplied to the pressure cylinder 1 is controlled optionally by a controller 8. Consequently, the optimum bonding load profile of an eutectic alloy which is made from the circuit substrate inner lead 16 and the electrode of the semiconductor element 5 when bonding is performed is obtained. Any damage to the semiconductor element is thus reduced and the quality in bonding intensity is improved.
Patent JP-S63111640-A (JP)
Title: Bondino device for semiconductor chip
Inventor: HONDA FUMIHIRO
IPC: H01L21/68
Filed: 1986-10-29
Abstract: PURPOSE:To prevent a semiconductor chip from cracking by conveying the chip by vacuum attracting to the recess of a collet onto a substrate, and then supplying pressure gas to the through hole of the collet to press the chip to the substrate, thereby bonding them. CONSTITUTION:A recess 33 for containing a semiconductor chip 1 and a through hole 32 are formed at the end of a collet 3. The chip 1 is vacuum attracted through the hole 32 to the recess 33 of the end of the collet 3, and conveyed in height that the upper surface of a substrate 2 is not contacted with the chip 1 at a position where an interval between the upper surface of the substrate 2 and the end of the collet 3 is smaller than the thickness of the chip 1. Then, when the vacuum state of the hole 32 is released, pressure gas is simultaneously supplied through the hole 32, the chip 1 is pressed onto the substrate 2 while guiding the chip 1 by the inner wall 331, a bonding load is applied thereto to be bonded. Thus, since the bonding load is applied by the pressure gas, it can prevent the chip from being damaged at the time of bonding.
Patent JP-H02105707-A (JP)
Title: Sine wave generation circuit
Inventor: ECHIGO SHOJIRO
IPC: H03B28/00
Filed: 1988-10-14
Abstract: PURPOSE:To obtain sine wave signals suitably used for measurement and, at the same time, to generate multichannel synchronous sine wave signals by feeding back error signals obtained by comparing rectified output signals from a full-wave rectifying circuit which rectifies the sine wave signals with a refer ence voltage from a reference voltage source to a multiplier circuit. CONSTITUTION:Square wave signals are supplied to a band-pass filter 2 through a multiplier circuit 1 and, at the same time, the output signal of the filter 2 is rectified by means of a rectifier circuit 3. The output signal of the circuit 3 is compared with a reference voltage and error signals obtained from the comparison are fed back to the multiplier circuit 1. As a result, fixed sine wave signals, the frequency and peak value of which are respectively decided by the frequency of the square wave signals and the value of the reference voltage are obtained on the output side of the band-pass filter 2. Therefore, the sine wave signals which are suitably used as sine wave signals for measure ment can be obtained, at the same time, multichannel synchronous sine wave signals can be generated when the same sine wave signal is used.
Patent JP-H10105181-A (JP)
Title: Karaoke equipment
Inventor: TANAKA MASAICHI
IPC: G10K15/04
Filed: 1996-09-30
Abstract: PROBLEM TO BE SOLVED: To easily sing well and easily increase a repertory of songs. SOLUTION: The signal (infrared-ray signal) of a signal source for multi- KARAOKE practice is inputted to photodiodes 16 and 17 as the reception part of headphones 5 from a transmitter 2 or KARAOKE equipment main body 1. The signal is demodulated by demodulation parts 18 and 19 into an electric signal, which transmitted as a vocal or the vocal and an accompaniment to a singer 8 from headphone speakers 22 through an output switching circuit part 20 and a voice output amplifier 21. The singer 8 sings while listening to it.
Patent JP-H03120664-A (JP)
Title: Driving device and disk reproduction device
Inventor: UMEZAKI KIYOSHI
IPC: G11B17/26
Filed: 1989-10-03
Abstract: PURPOSE:To improve the reduction of cost and space by providing a switching driving device and switching a first mode which vertically moves a roller part, a second mode rotating the roller part and third mode taking out a disk from a magazine. CONSTITUTION:The roller member provided with a roller 11 which rotates for selectively moving the disk 14 stored in the magazine 5 and a disk inserted into a direct insertion port 7 in a horizontal direction is provided. The switching driving device provided with the first mode which vertically moves the roller member, positioning it to the height of plural disks 14 stored in the magazine 5 and loading the disks, the second mode rotating the roller member in a position sandwiching the disk inserted into the direct insertion port 7 and loading the disk and the third mode taking out the disk 14 from the magazine 5 in a state where positioning is attained to the selected disk 14 is provided, and respective modes are selected. Thus, the reduction of cost and space can be improved.
Patent JP-H07115023-A (JP)
Title: Coil component
Inventor: AOKI KENICHI
IPC: H01F41/10
Filed: 1993-10-18
Abstract: PURPOSE:To facilitate the inspection of the soldering by making it possible to form solder fillets on the side surfaces of the edge parts of a core surely, at the time of mounting on a printed board. CONSTITUTION:External electrodes 12 are provided on the edge parts of a core ranging from its bottom to its sides. The end parts 5a, 5b, 6a and 6b of first and second wires are temporarily fixed on the external electrodes 12 by thermocompression bonding, and cream solder 15 is applied from above them. The surfaces of the cream solders 15 are flattened with a flat board 16 by shaping with heat and pressure.
Patent JP-H07307143-A (JP)
Title: Illuminator and electrodeless low pressure discharge lamp and coil for its illuminator
Inventor: ANTONIS PETRUS HENDRIKUS
IPC: H05B41/24
Filed: 1993-10-18
Abstract: PURPOSE: To facilitate ignition of a lighting system which has electrodeless low-pressure discharge lamp and a high frequency power source. CONSTITUTION: A lamp 10 is equipped with a discharge container 20 which encloses ionization possible filler 21, and a coil 30 having turns 31, 32 of first and second windings 33, 34. An electric power source 50 is connected between both ends of the first winding 33. During normal operation of the lamp, the first winding 33 generates high frequency magnetic field and maintains discharging, and fall of potential reverse to that in the first winding wire 33 is induced in the second winding 34. The relative number of turns in the first winding 33 on a first end 39a which has a half of number of turns in the coil 30, is set over 3/2 times the relative number of turns in the second winding 34.
Patent JP-H04138381-A (JP)
Title: Capacitance measuring circuit
Inventor: WATANABE KENZO
IPC: G01R27/26
Filed: 1990-09-28
Abstract: PURPOSE:To enable digital measurement of an inter-electrode capacitance with high precision without being affected by a parasitic capacitance, by connecting a noninverting input terminal of a comparator to a threshold voltage source and an inverting input terminal thereof to an unknown capacitor to be measured and a reference capacitor. CONSTITUTION:In this circuit, a capacitor 21 to be measured and a reference capacitor 22 are charged by a reference voltage source 4 and then they are charged with a voltage to be a reference which is outputted from a D/A converter 6. At this time, a comparator 1 compares an inter-terminal voltage of the capacitor 21 with a voltage of a threshold voltage source 12 and delivers an output of 1 or 0. This output is introduced into the converter 6 through a shift register 5, thereby a quantized reference voltage is generated and the capacitor 21 and the capacitor 22 are charged therewith. Then, the inter-terminal voltage of the capacitor 21 and the voltage of the voltage source 12 are compared 1 again, the result is subjected to addition in the register 5 and a quantized reference voltage corresponding to a fresh bit value of the register 5 is outputted by the converter 6. This process is repeated and the capacitance of the capacitor 21 can be obtained with a binary normalized by the capacitor 22.
Patent JP-H1193676-A (JP)
Title: Fuel cylinder injection type internal combustion engine
Inventor: MORINAGA YUKIMARE
IPC: F02F1/42
Filed: 1997-09-25
Abstract: PROBLEM TO BE SOLVED: To securely form an air-fuel mixture layer having a rich air-fuel ratio near a spark plug by forming an inner bottom surface of a recessed part formed in a top of a piston so as to be inclined upward along the turning direction of the intake from a position just under an intake port. SOLUTION: A piston 4 is formed with a recessed part 5 at a top thereof, and a cylinder head 3 is formed of a pair of intake port 6 and discharge port 8, and one of the intake port 6 is formed into a swirl type. At this stage, the recessed part 5 is formed so that the intake sucked from one intake port 6 is turned in a direction expressed with an arrow A. An inner bottom surface 20 of the recessed part 5 is formed into a spiral inclined surface 20b inclined upward along the intake turning direction expressed with an arrow A from a position 20a just under the one intake port 6. With this structure, an air-fuel mixture layer having a rich air-fuel ratio can be securely and stably formed near a spark plug 18 even in a low load operation area.
Patent JP-H1195565-A (JP)
Title: Image forming device
Inventor: KOSUGE AKIO
IPC: G03G15/16
Filed: 1997-09-25
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of hardly causing a failure in transfer, even if a substance with low resistance generated by an electric discharge is stuck to the rear surface of a carrying/transferring belt, further, providing excellent cleanability for the surface of the carrying/ transferring belt and moreover, detecting/correcting a deviation in an image position caused by the fluctuations of temperature and humidity in environment where a device is installed, a changes with the lapse of time, etc., so as to minimize the deviation in the image position and stably obtain high image quality over a long period of time. SOLUTION: In the image forming device provided with plural photoreceptors 1Y, 1M, 1C and 1Bk and the carrying/transferring belt 9 which is arranged to face these photoreceptors and for sucking/carrying a transfer paper P, the inner peripheral side (rear surface) of the belt 9 is made rougher than the outer peripheral side (front surface) for sucking/carrying the transfer paper P. Further, in detail, the surface roughness Ra of the front surface of the belt 9 is set to be Ra<0.5 μm and the surface roughness Ra of the rear surface of the belt 9 is set to be 0.5 μm<=Ra<=5.0 μm.
Patent JP-H1057267-A (JP)
Title: Bathtub structure of bathroom unit
Inventor: FUKUOKA NOBUYUKI
IPC: A47K3/02
Filed: 1996-08-23
Abstract: PROBLEM TO BE SOLVED: To provide a bathtub structure of a bathroom unit which enhances the cleanability of a speace on the back of a bathtub. SOLUTION: In a bathtub structure of a bathroom unit 1, a bathtub 4 is installed on a floor pan 2 along the wall surface 3 of the bathroom unit, and an opening 6 that can accommodate a cleaning tool 14 used for cleaning a space 15 on the back of the bathtub is provided between the wall face 3 and the bathtub 4. Further, the opening 6 is covered with a lid 7 freely removably attached. The lid 7 is a draining lid 7 with a drain hole 7b.
Patent JP-H1189734-A (JP)
Title: Chopping board
Inventor: MATSUMOTO SHUICHIRO
IPC: A47J47/00
Filed: 1997-09-25
Abstract: PROBLEM TO BE SOLVED: To safely and easily cut a roughly spherical food material by providing drilling roughly spherical hemisphere dent section on at least one surface of a chopping board. SOLUTION: A roughly hemispherical dent section 11 is provided drilling on one surface of a chopping board body 1 of a flat view generally rectangular shape. A lid body 2 of same roughly hemispherical shape and the same size as the dent section is detachably inserted in the dent section 11. An opposite pair of handles 2 of a quarter rough hemisphere is provided drilling on a surface of the lid body 2. When the lid body 2 is moved from the dent section 11, a user can hold the lid body 2 with tips of the fingers. When using, the lid body 2 is put between the tips of the fingers to remove from the dent section 11, a bottom of a rough sphere food material is inserted into the dent section 11 and is fixed lest the food material should not be removed, and is cut with a knife.
Patent JP-H01104922-A (JP)
Title: Engine with supercharger
Inventor: HITOMI MITSUO
IPC: F02B27/02
Filed: 1987-10-15
Abstract: PURPOSE:To secure an excellent scavenging effect owing to supercharging pressure of a supercharge by setting up a throttle valve in each independent suction passage so as to make suction side pressure higher than exhaust pressure at a partial load area and idle low speed maintainable at the time of idle running. CONSTITUTION:In an engine 1, a compressor 10a of a turbosupercharger 10 is set up in a main suction passage 7. In this case, each of intakes valves 3 and exhaust valves 4 installed in multiple cylinders 2 is set so as to cause an overlap value at the valve opening time to become -10 deg.C at a crank angle when each valve lift value of these intake and exhaust valves 3, 4 is 1mm. On the other hand, each of throttle valves 15 is set up in and around each intake port in a lot of auxiliary suction passages 14 branched off from a surge tank. In each throttle valve 15, pressure at the downstream side of these throttle valves becomes higher than exhaust pressure during the overlap period of these intake and exhaust valves 3, 4, and each throttle valves is set up in a position where idle low speed is maintainable at the time of idle running.
Patent JP-H06116837-A (JP)
Title: Nontwist feeder for weft yarn of loom
Inventor: NAKAI SHOJI
IPC: D03D47/34
Filed: 1992-09-29
Abstract: PURPOSE:To obtain a weft yarn feeder for a loom designed to enable the storage of fed yarn in an always constant amount in a state of no twist and an ultralow tension. CONSTITUTION:Yarn (Y) positively fed with a feed roller 9 and a pinch roller 14 is placed in a meandering state on the top surface of a conveyor belt 42 transferred at a set speed along the upper part of a yarn supporting pedestal 35 in a screenlike form, alternately hung in the form of U on both sides of a yarn supporting pedestal 42, stored in this state and then delivered to a loom. A storing area of the yarn (Y) is formed in a duct 37 having air streams to fix the yarn (Y) to the conveyor belt surface 42 and fluff, etc., sticking to the belt surface 42 with the air streams is removed.
Patent JP-S62120792-A (JP)
Title: Blocking entropy encoding system
Inventor: OKAZAKI TAKESHI
IPC: B23C5/10
Filed: 1985-11-20
Abstract: PURPOSE:To attain more effective data compression by run length-encoding consecutive invalid blocks. CONSTITUTION:An invalid-block run-length detector 6 and an invalid block run-length encoder 7 are provided. The detector 6 detects the length of running of the consecutive invalid blocks discriminated as '0' by a valid-invalid block discriminant circuit 2. The encoder 7 run length-encodes the said length of run detected by the detector 6. Since the blocks are run length-encoded in group, a better-effective data compression is made possible.
Patent JP-S63113570-A (JP)
Title: Device for switching developing device of copying machine
Inventor: NISHIKAWA YOSHIYUKI
IPC: G03G15/01
Filed: 1986-10-31
Abstract: PURPOSE:To improve the return accuracy of a developing position and the copying quality by providing a device for turning each developing device centering around the axis center of a developing roller, respectively, so that they can be switched to a developing position and a non-developing position. CONSTITUTION:A developing device 4 turns counterclockwise centering around the axis center 6 of a pre-developing roller 2, when it is pressed by a cam 8. In this case, since the main pole 15 of the roller 2 is fixed to the developing device 4, it rotates counterclockwise centering around the axis center together with the developing device 4, and the main pole 15 is shifted from the present developing position and goes away, and changed to a non-developing device. A developing device 5 is not pressed by a cam 9, therefore, it does not rotate, and the main pole 16 of a rotary roller 3 does not rotate either, therefore, the main pole 16 is in a developing position. In such a way, the switching of the developing position and the non-developing position is executed centering around the axis center of the developing roller, therefore, an interval between a photosensitive body and the developing roller is not varied by switching but kept constant.
Patent JP-S63116783-A (JP)
Title: Stainless steel sheet excellent in fingerprinting resistance and its production
Inventor: IZUMI KEIJI
IPC: C23C22/50
Filed: 1986-10-31
Abstract: PURPOSE:To make it difficult for a fingerprint to stick on a stainless steel sheet without changing the external appearance thereof by forming an oxide film of Al or the like on the stainless steel sheet and thereafter applying fluoroalkylsilane thereon. CONSTITUTION:A metallic oxide film contg. many hydroxyl groups is previously formed on the surface of a stainless steel sheet. The formation of this film is performed by applying an alcohol soln. contg. >=0.005wt% of one or more kinds of alkoxide or acetylacetonate metallic salt of Al, Zr, Ti and Si and heating it at >=100 deg.C. Then fluoroalkylsilane is applied on this metallic oxide film, dried and thereafter heated to subject both hydroxyl groups of the metallic oxide film and fluoroalkylsilane to metallo-siloxane bond and to resinify same.
Patent JP-H07115005-A (JP)
Title: Lightning arrester device
Inventor: KOMATSU KATSURO
IPC: H01C7/12
Filed: 1993-10-19
Abstract: PURPOSE:To uniform the potential distribution of every lighting arrestor by installing a lightning arrester on the lowest stage in such a fashion that its shield lower end is on the same level with the top of an inner component and lowering a shield lower end of an upper stage lightning arrester. CONSTITUTION:A shield is installed to a high voltage side of a lightning arrester to be installed to a valve unit 2a on the lowest stage in such a fashion that the top of an inner component 5 is substantially on the same level as a shield ring 6a. As for lightning arresters 3b, 3c and 3d of valve units 2b, 2c and 2d which are on a higher level than the valve unit 2a, shields are installed to the high voltage side of the arresters in such a fashion that shield rings 6b, 6c and 6b is positioned on a lower level to the inner component 5 as they are located on a higher stage As a result, the magnitude of electric current in an earth electrostatic volume from the inner component is large, which lowers the position of the shield ring and increases the electric current in the inner component. Therefore, the electric currents cancel each other, which makes it possible to uniform the potential distribution.
Patent JP-H0959858-A (JP)
Title: Weather-resistant filament nonwoven fabric
Inventor: NOGI TAKASHI
IPC: D04H3/14
Filed: 1995-10-09
Abstract: PROBLEM TO BE SOLVED: To obtain a weather-resistant filament nonwoven fabric having excellent weather resistance without impairing flexibility. SOLUTION: This nonwoven fabric retains a prescribed shape by thermal pressing of a nonwoven web comprising a polyester filament and contains 0.01-3.0wt.% benzotriazole-based or benzophenone-based ultraviolet light absorbent and 0-3.0wt.% hindard amine-based or hindard phenol-based or phosphorus- based antioxidant in a polymer forming the polyester filament.
Patent JP-H01102214-A (JP)
Title: Combustion type heating apparatus
Inventor: ISHIKAWA YOSHIJI
IPC: F24C3/12
Filed: 1987-10-15
Abstract: PURPOSE:To enable the interior of a room to be quickly warmed up without causing the lowering of ignition rate and the increase of a firing noise by making a burning amount at a burner larger than its rated burning amount during a predetermined period of time after the firing at the burner has been detected by a flame detecting means, at the primary stage of ignition. CONSTITUTION:As for the igniting time when heating is started, the optimum amounts of gas and air for combustion are fed to a burner 15 at the igniting time, whereby the firing at the burner 15 can be carried out without causing the lowering of an ignition rate as well as the increase of a firing noise. Further, the interior of a room can be quickly warmed up by increasing the burning amount of gas at the burner 15 by ten-odd percent over its rated burning amount during a predetermined period of time after the firing at the burner 15 is detected by a thermocouple 34. In this case, in order to make the burning amount at the burner larger than the rated burning amount, a by-pass, which by-passes a proportional control valve, and a valve, which opens and closes this by-pass, may be used, or such a means as to make the opening degree of the proportional control valve larger than the rated amount may be employed.