baber/WOPTO huggingface dataset:
Patent JP-H0438656-A (JP)
Title: Disk reproducing device
Inventor: MOTOKI MASANORI
IPC: G11B17/08
Filed: 1990-05-31
Abstract: PURPOSE:To prevent the malfunction of a tone arm due to erroneous operation or the like at the time of disk reproduction by operating an interlock means interlocking with a changeover switch for switching between the record reproducing mode and the disk reproducing mode and stopping the operation of an arm mechanism at the time of switching to the disk reproducing mode. CONSTITUTION:When a changeover switch 70 is switched to the 'CD' side to switch the mode to the disk reproducing mode, a control lever 71 is turned clockwise by an operation lever, and its rear end part slides an operation slide 74 toward the other end side through a shaft 74c. Therefore, the shaft part of an arm rest 79 brought into contact with a stepped piece 74d is pressed upward by the slope of the base part of the stepped piece 74d, and the arm rest 79 is moved upward to lift the base part of a tone arm 17. Thus, downward turning of the tome arm 17 is stopped to surely prevent a pickup 18 from coming into contact with a tray, a cabinet, or a disk even if the tone arm 17 is erroneously moved in the disk reproducing mode.
Patent JP-H10322380-A (JP)
Title: Transmission delay difference absorbing system in optical pds system
Inventor: MARUYAMA MASAKI
IPC: H04B10/272
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To absorb a transmission delay time difference on a salve station-side and to prevent inconvenience at the time of switching a transmission line by inserting delay data measured in the delay time measuring part of a master station device into down data, receiving it in a slave station device, detecting delay data, holding '0' system delay data and '1' system delay data and selecting either data so as to control the transmission timing of up data. SOLUTION: The frame synchronous pulse of outgoing data, which is received in a synchronism detection part 202 via a '0' system transmission line, is detected. A synchronous counter 203 is reset by the timing and counting is executed at every frame. The frame synchronous pulse of outgoing data, which is received via a '1' system transmission line, is detected. A comparison part 204 compares the timing with the output timing of the synchronous counter 203 and the delay time difference of a reception side is obtained. The output timing of the synchronous counter 203 is shifted by the received delay time difference from the next frame receiving a switch request signal and the delay time difference of the reception side at the time of switching the system is adjusted.
Patent JP-S6035956-A (JP)
Title: Chopper circuit
Inventor: KUROKI KAZUO
IPC: H02M3/135
Filed: 1983-08-05
Abstract: PURPOSE:To reduce the size and cost of a chopper circuit by applying a line voltage of AC input to a load when a chopper is in ON state, and applying a voltage between a neutral point of an AC input and an output terminal to the load when the chopper is in OFF state. CONSTITUTION:A 3-phase AC voltage from a 3-phase AC power source 1 is insulated and transformed by a transformer 2. The 3-phase voltage insulated and transformed by the transformer 2 is converted via a rectifier 3 made of diodes 3U-3Z into a DC voltage. A power source side capacitor 14 is connected between the positive electrode side of the DC output and the neutral point 2N of the secondary side of the transformer 2. The DC voltage outputted from the rectifier 3 is interrupted upon ON and OFF operations of a thyristor chopper 5, this interrupted DC voltage is smoothed by a DC reactor 6 and a smoothing condenser 8, and applied to a DC load 7. A freewheel diode 19 is connected to the polarity for preventing the voltage applied when the chopper 5 is ON between the load side of the chopper 5 and the neutral point 2N.
Patent JP-H038785-A (JP)
Title: Silicon nitride-based cutting tool having excellent strength and toughness
Inventor: KOYAMA TAKASHI
IPC: C04B41/87
Filed: 1989-06-06
Abstract: PURPOSE:To improve strength and toughness by forming a surface layer having increased ZrO2 content and reduced ZrN content on the surface of a specific sintered material. CONSTITUTION:1-20vol.% ZrO2 is blended in a wet state with 1-10vol.% ZrN, 1-10vol.% Mg-Si-O-N based binder and Si3N4 containing >=30% long pillar-shaped beta-Si3N4 particles having >=3mm long axis length, press molded and sintered in 1-50atm N2 gas atmosphere at 1,600-1,700 deg.C for 2-4 hours under low nitrogen gas pressure to give a sintered material. Then the sintered material is sintered in 150-2,000atm N2 gas atmosphere at 1,700-1,950 deg.C for 1-2 hours under high nitrogen gas pressure to give a Si3N4-based cutting tool having the uppermost surface layer of the exterior comprising 2-27vol.% ZrO2, 0-3vol.% ZrN (including 0) and beta-Si3N4 and 10-1,000mum thickness.
Patent JP-S5666905-A (JP)
Title: Oscillator
Inventor: IKENO HITOSHI
IPC: H03L1/00
Filed: 1979-11-06
Abstract: PURPOSE:To avoid the variance in oscillation frequency due to moisture and to hardly make subjective to the effect of parasitic capacitance, by providing a wiring board including a capacitor in which the rate of water absorption is 0 with the airtight terminal outside the sealing package sealing piezoelectric elements and integrated circuit elements. CONSTITUTION:In sealing package 1 consisting of an airtight terminal 3 sealing and fixing a plurality of terminal pins and a cap 4 fitted and fixed with this airtight terminal 3, a quartz oscillator 9 is fixed to the upper end of terminal pins 5, 6 and an integrated circuit element 10 is stuck at the upper surface of the airtight terminal 3 and wire-bonded to each terminal pin with each pad. Metal layers 19, 20 are provided to a board 18 which is excellent in thermal shock resistance with zero water absorbing rate at a concave 3a under the airtight terminal 3, and a dielectric substance layer 21 which is excellent in thermal shock resistance with zero water absorbing rate is provided at the upper part of it, and a wiring board 17 with a capacitor provided with a metal layer 22 is provided at further upper part and it is fixed with adhesives to a prescribed terminal pin.
Patent JP-S6037216-A (JP)
Title: Method and device for manufacturing electric welded steel pipe
Inventor: TAKAMADATE CHIHARU
IPC: B23K13/02
Filed: 1983-08-08
Abstract: PURPOSE:To prevent the deterioration of the shape of inner surface of a blank pipe after drawing to the utmost, by cutting the weld bead of the inner surface of a blank pipe before drawing it and providing a smoothing work to the inner surface of a blank pipe after cutting in its circumferential direction. CONSTITUTION:When a blank pipe M is drawn in the arrow direction, the weld bead Bi of its inner surface is cut and removed by a cutter 5 for cutting the bead of inner surface. A pressurized fluid W is supplied from the upstream side to the inside of a roller holder 3, to wash away the cutting chips C of bead Bi to the downstream side. A smoothing roller 4 is formed by arranging rollers 4a such as plural kneedle bearings in the axial direction and in an annular shape as a whole, and is rotated from the outside through the hollow holder 3, to smooth a trace caused by cutting the inner surface bead.
Patent JP-S5932659-A (JP)
Title: Auxiliary fuel supplying device for carburettor equipped with supercharger
Inventor: NOUZUKA HIROBUMI
IPC: F02M7/20
Filed: 1982-08-18
Abstract: PURPOSE:To prevent the shortage of fuel supplied upon operation of the supercharger by a method wherein a diaphragm mechanism, opening a needle valve in a fuel path in proportion to a supercharging pressure supplied to the carburettor, is provided in the device. CONSTITUTION:The auxiliary fuel supplying device is consisting of the diaphragm mechanism 11 and a metering section by means of the needle valve 19. When the supercharger is operated upon a high-speed driving, the supercharging pressure is supplied to a float chamber 4 through an air vent pipe 3 while the same is also supplied into a space for an oil level between a pressure chamber 13 and the diaphragm 17 through supercharging pressure paths 21, 22. Accordingly, the diaphragm 12 is moved downwardly and the amount of pushing down the needle valve 19 is increased as the supercharging pressure is increased. In the metering section of the needle valve 19, a flow path area between an orifice is increased in proportion to the descending amount thereof and, accordingly, the metered fuel, sent by the rearstream of a main jet 9, is increased.
Patent JP-S6123961-A (JP)
Title: Flight time type mass analyzing device
Inventor: ISHIHARA MORIO
IPC: G01N27/62
Filed: 1984-07-11
Abstract: PURPOSE:To obtain a spectrum of daughter ions from a specific parent ion by making an daughter ion detection output to correspond to the parent ion on the basis of flight time, an acceleration voltage, etc. CONSTITUTION:When the acceleration voltage V0 is applied from an accelerating power source 2, the parent ion from an ion source 1 is accelerated. Then, a daughter ion generated from the parent ion is detected by an ion detector 7 in the free space between a slit 3 and a sweep magnetic field 6 established by electrodes 4 and 4' supplied with an electric field voltage from an electric field power source 5. A set delay time tau, sweep electric field voltage E, voltage V0, etc., corresponding to the ion flight time from a delay circuit 10 which controls a gate 12 are supplied to an arithmetic circuit 8 to make the daughter ion detection output passed through the gate 12 correspond to the parent ion on the basis of a calculated tau<2>V0. Consequently, the spectrum of the daughter ion is obtained from the specific parent ion.
Patent JP-S5847696-A (JP)
Title: Method of mounting plate material on outer surface of structure
Inventor: TAKAMIZU TSUGUO
IPC: B63B59/04
Filed: 1981-09-14
Abstract: PURPOSE:To facilitate mounting of a corrosion-resisting plate material by pre- arranging a mounting lug piece that is used to mount the corrosion-resisting plate on the outside plating of a ship in a tile shape, on a virtual circular gap formed by the corner notches of adjacent four plate materials. CONSTITUTION:To mount a pollutionproof of plate material 3 on the outside plating 2 of a hull S under the water level, notched sections 3a are provided at their own corner of each plate material 3 and a lug piece 5 with a larger outer diameter (d) than a gap (s) that is formed by the corner of the adjacent four plate materials 3 are pre-arranged and sealed temporarily. Then based on these lug pieces 5, each plate material 3 is sealed effectively in a tile shape. As a result, joints 4 are automatically formed in good order between these adjacent four plate materials 3. Besides, each of the lug pieces 5 is hit by a hammer or the like and removed after the plate material 3 is sealed.
Patent JP-H10330317-A (JP)
Title: Hydroxyalkylphenone derivative and its application
Inventor: HIGUCHI YOSHIKI
IPC: C07C323/22
Filed: 1997-06-02
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound having photopolymerization-initiating group(s) and polymerizable group(s) in its molecule, which can be used as a photopolymerization initiator for printing ink, coating, or the like. SOLUTION: This compound, which is a hydroxyalkylphenone derivative shown by formula I [A, B, and D are each a (hydroxylated) 2-6C alkylene; Y is O or S; Z is O or an NR2 group; R1 is H or methyl; R2 is H or a 1-6C alkyl; (m) is 1-40; (n) is 0-39; (m+n) is 1-40; (p) is 1-4], is obtained easily and in high yield by carbonate esterification, in an aprotic solvent (e.g. acetone) in the presence of a basic catalyst (e.g. sodium hydroxide) at 10-50 deg.C, of a compound shown by formula IV or formula V both obtained by chloroformylation of a compound shown by formula II (e.g. 2-hydroxyethyl methacrylate) or a compound shown by formula III  e.g. 1-[4-(2-hydroxyethoxy) phenyl]-2-hydroxy-2-methylpropan-1-one} using phosgene or the like.
Patent JP-S6123116-A (JP)
Title: Image display device for two-eye type stereoscopy
Inventor: HIRAIWA YOSHINORI
IPC: G02B30/25
Filed: 1984-07-11
Abstract: PURPOSE:To view a right-eye and a left-eye image as one stereoscopic image by synchronizing a rotary polarizer with switching operation, and generating linear polarized light beams which have mutually orthogonal axes of polarization as image light beams of the right-eye image and left-eye image. CONSTITUTION:One of a right-eye and a left-eye image signal sent from a front stage is selected optionally by a switching device 3 and outputted to a trailing image display device 5. A polarizing filter 6 polarizes the output image light of the image display device 5 into linear polarized light having a specific axis of polarization. The rotary polarizer 7 is controlled with a synchronizing signal outputted from a synchronizing signal generating device 4 to rotate the axis of polarization of the incident linear polarized light in two orthogonal directions. One polarizing filter which has an axis of polarization parallel to the axis of polarization of the output image light of the right-eye image is provided in front of the right eye and one polarizing filter which has an axis of polarization parallel to the axis of polarization of the left-eye image is provided in front of the left eye to view only the right-eye image with the right eye and only the left- eye image with the left eye, thus viewing the stereoscopic image of the right and left images.
Patent JP-H08315522-A (JP)
Title: Optical recorder/reproducer
Inventor: HIRATA EIICHI
IPC: G11B21/02
Filed: 1995-05-19
Abstract: PURPOSE: To obtain a simple structure for eliminating the rattling of carriage. CONSTITUTION: A carriage 4 carrying an optical head 2 is fixed slidingly to one 25 of two parallel guide shafts 25, 26 through a thrust bearing 34. A deformed radial bearing 35 fixed rotatably to the carriage 4 has a seesaw type rotary arm 37 and a pair of rollers 39 disposed at the opposite ends thereof, is pressed against the opposite sides of the other guide shaft 26 by means of a tension coil spring 40 for urging the rotary arm 37 to rotate.
Patent JP-S5768579-A (JP)
Title: Scroll compressor
Inventor: MURAYAMA AKIRA
IPC: F04C18/02
Filed: 1980-10-17
Abstract: PURPOSE: To prevent lowering of the volumetric efficiency of a scroll compressor due to leakage of gas, by fitting an annular seal member between sliding surfaces of a fixed and a turning scrolls having respectively a volute lap erected on its flat plate part, and improving the sealing performance at slidable parts by applying back pressure at the back surface of the annular seal member.  
     CONSTITUTION: When a crank shaft 4 is set into rotation along with rotation of a rotor 3a, a turning scroll 6 is turned by an eccentric shaft 4a and a turning mechanism 14. This causes change in the volume of a space defined between the turning scroll 6 and a fixed scroll 7, so that gas introduced from an inlet pipe 19 is compressed and discharged to an outlet pipe 10. Here, since pressure n an intermediate pressure chamber 16 is kept equal to that in a compression chamber 18 by the function of a connecting port 17, the above two scrolls 6, 7 are brought into sliding contact with each other. In the above arrangement, an annular groove 21 is formed at the sliding parts of one scroll 7 and a seal member 22 is fitted therein. Further, the groove 21 is communicated via an oil port 23 to an oil sump 24 at the bottom of an enclosed casing 1. Therefore, it is enabled to positively seal the sliding parts of the two scrolls 6, 7. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5570059-A (JP)
Title: Semiconductor memory device
Inventor: SHIMOTORI KAZUHIRO
IPC: H01L27/10
Filed: 1978-11-20
Abstract: PURPOSE:To eliminate the unbalance of the reading of 0 and 1, by forming a one transistor-dynamic RAM by means of two layer poly Si, by making up a one layer portion as a condenser electrode and a two layer portion as a gate electrode in a memory and by turning the layer portions the other way in dummy. CONSTITUTION:In a memory cell of a 1MIST+IC dynamic RAM, an n-type bit wire 13 is mounted to a p<->-type substrate 11, the first layer poly Si15 is installed through a thin SiO2 film 14' and used as a condenser electrode and the second layer poly Si16 is disposed onto a SiO2 film 14'' and employed as a gate electrode. In a dummy cell, meanwhile, a n-type bit wire 33 is mounted to a p<->-type substrate 31, the first layer poly Si35, 35' are installed through thin SiO2 films 34'', 34''' and used as gate electrodes and the second poly Si36 is disposed through a SiO2 film 34' and employed as a condenser electrode. Thus, the dummy condenser is easily formed, and the information of 0 and 1 memorized in the memory cell can stably be sensed and can be amplified.
Patent JP-H0719203-A (JP)
Title: Hydraulic pumping circuit
Inventor: YOSHIMATSU HIDEAKI
IPC: F04B49/00
Filed: 1993-06-16
Abstract: PURPOSE:To actualize smooth starting and acceleration at the acceleration start of an actuator as well as to each any pressure shock in time of a changeover in a hydraulic pumping circuit. CONSTITUTION:A flowing direction of pump discharge oil to be fed to an actuator 12 from a hydraulic power source unit 3 containing a hydraulic pump 1A and an oil tank 2 is selected by an electrohydraulic control valve 10, and pumping pressure is selected by a main relief valve 4A respectively. While this hydraulic pumping circuit is in operation on its motion and the pump discharge oil is used by the actuator 12, relief pressure in this main relief valve 4A is held up to the specified high pressure value and, while this pump discharge oil is not used by the actuator 12, such a relief valve controlling means as unloading this relief pressure with an intermediate pressure value lying between the high pressure value and an unloading low pressure value, is installed there.
Patent JP-H04368130-A (JP)
Title: Formation of bump for bonding
Inventor: KIMURA MAKOTO
IPC: H01L21/321
Filed: 1991-06-17
Abstract: PURPOSE:To obtain the forming method of bumps for bonding wherein plating is excellently stuck on bumps at the time of plating adhesion for forming the bumps via resist, even in the case that the bumps of an semiconductor element and the width between the bumps are narrowed for integration. CONSTITUTION:In the forming method of bumps wherein resist 3 having a plurality of hole parts 4 for forming bumps are formed on a semiconductor element 1, and a plurality of bumps 5 for bonding are formed by plating the hole parts 4 for bumps, the whole shape of the hole part 4 is constituted as an oblong form or an ellipse or a rectangle whose four corners are projected quadrants.
Patent JP-H0381438-A (JP)
Title: Sound-absorbing material
Inventor: SUCHIIBUN POORU SHIYAINBAAGU
IPC: E04B1/84
Filed: 1990-06-04
Abstract: PURPOSE: To form a replaceable acoustical absorber by fitting a flange to both inner side walls of a U-shaped section material, providing notches on both side walls of the acoustical absorber to be fitted to the U-shape, and engaging the U-shaped section material with the acoustical absorber. CONSTITUTION: A U-shaped section material 30 has a curved back wall 36 and side walls 32, 34, and flanges 38a, 40a are fixed to side walls 32, 34. An acoustical absorber containing a flexible grid 12 is formed between open cell foam panels 14, 16, Notches 24, 26 provided in the side walls 20, 22 of the acoustical absorber 10 are engaged with the flanges 38a, 40a of the U-shaped section material 30, and the acoustical absorber 10 is fitted in the U-shaped section material 30 to be integrally formed with each other. Thus, a replaceable acoustical absorber which can be easily removed can be obtained.
Patent JP-S5478089-A (JP)
Title: Manufacture of semiconductor device
Inventor: ARAI EISUKE
IPC: H01L29/78
Filed: 1977-12-03
Abstract: PURPOSE: To obtain a resist pattern in any shape through self-matching to a wall of a structure body by exposing the wall by irradiating the structure body with slant beams.  
     CONSTITUTION: On Si substrate 1, thick SiO 2  film 2 is grown and provided with the pattern of a resist film, which is used as a mask for etching, thereby providing groove 3 to film 2. Next, thin gate SiO 2  film 4 is adhered onto exposed substrate 1 in groove 3 and gate metal 5 of Mo, W, poly-crystal Si, or the like is vapor- deposited on the entire surface covering film 4. Then, the entire surface is covered with positive type resist film 6 and film 6 is exposed to incident beams 12 such as electron beam, X rays and far ultraviolet rays in the right and left slant directions. As a result, since the gate width can be controlled depending upon incident angle θ of beam 12, this controlled film is used as a mask for etching metal 5, so that gate 7 in any shape can be obtained in groove 3. Then, gate 7 is used as a mask and source and drain regions 8 and 8' are diffusion-formed through self-matching to obtain a MOSFET. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S626377-A (JP)
Title: Management system for rectangular data
Inventor: HIROZAWA TOSHIO
IPC: G06F17/21
Filed: 1985-07-03
Abstract: PURPOSE:To improve the management efficiency of rectangular data by providing a control block for hidden rectangles produced by overlap of bit map layers and therefore omitting the transfer of the areas to be turned into rectangles. CONSTITUTION:A bit map control group having low priority is extracted out of those groups 100, 110 and 120 and the corresponding bit map layer areas 200, 210 and 220 are transferred to a display area. In this case, the presence or absence of rectangle control blocks 131-136 existing for each hidden rectangle produced in a bit map layer area due to other bit map layer areas is checked. If those blocks 131-136 exist, they are not transferred to the display area together with the rectangles shown by shadow bit map control blocks 141-146 including the bit map information which forms the hidden rectangles within the map layer area for each bit. As a result, the transfer efficiency is improved with rectangular data to the display areas of the bit map layers overlapping with each other.
Patent JP-H09295581-A (JP)
Title: Rod type wheelchair wheel rocker
Inventor: TERATANI KIYOSHI
IPC: A61G5/02
Filed: 1996-05-02
Abstract: PROBLEM TO BE SOLVED: To freely select the operational performance of a wheel without restriction of the brake position by connecting a hub shaft and a skeletal frame of a wheelchair to each other by an expansible rod, and arbitrarily fixing a locker which is pierced through the rod, and the position of which can be freely set. SOLUTION: A ring 11 having the same diameter as a hub hole is welded on one end of a rod 1 of a braking device, and the wheelchair main body frame fitting part 10 of the opposite side is fitted to the wheelchair main body frame with a little play. A locker 9 comprises a plate having a three-point hinge shaft and a spring for contracting both ends of the plate. A pressor fixture is fitted to the locker 9 in the direction of brining a wheel into contact therewith. One end of the locker 9 is fixed to the outer periphery of the wheel in such a position as to enable the pressor fixture to come into contact therewith. A spring is tensed, and the plate is expanded by the hinge operation to force the pressor fixture to bite into the wheel, thereby braking the rotation of the wheel. Thus, the braking direction is always directed to the center of the wheel.