baber/WOPTO huggingface dataset:
Patent JP-S62129978-A (JP)
Title: Optical reading and writing device
Inventor: OKUMURA MASAHIRO
IPC: G11B21/02
Filed: 1985-11-29
Abstract: PURPOSE:To reduce the transmission of ambient vibrations to a head which reads and writes information and to prolong the life of the head part by supporting the head by a shaft formed of ceramic and guiding the head. CONSTITUTION:The head part of an optical reading and writing device is constituted by inserting the shaft 1 through the head 3 and fixing both ends of the shaft 1 by support parts 2. The shaft 1 is made of ceramic and sectioned in a rectangular prismatic shape, so the head is supported stably by one shaft. The ceramic-made shaft has only a recessed part on the surface and when the head is slid on the ceramic-made shaft, the abrasion of the shaft and the abrasion of a head sliding part are both small and the life of the head part is prolonged. Further, the ceramic is large in vibration attenuation rate, so external vibrations are made hard to transmit.
Patent JP-H01112550-A (JP)
Title: Magneto-optical recording element
Inventor: ISHII YOSHINOBU
IPC: H01F10/12
Filed: 1987-10-26
Abstract: PURPOSE:To obtain stable C/N under a wide range of bias magnetic fields by constituting a magnetic material layer of a magnetic alloy having a specific compsn. and specifying the coercive force and thickness thereof respectively within specific ranges. CONSTITUTION:This magneto-optical recording medium is constituted by forming at least the amorphous magnetic material layer having the axis of easy magnetization in the direction perpendicular to the film plane on a substrate. The magnetic material layer of such magneto-optical recording medium consists of the magnetic alloy expressed by the formula. The coercive force thereof is set in a 1.0-2.5kOe range and further the thickness thereof is set in a 260-800Angstrom  range. The excellent reproducibility and reliability are thereby obtd. and the laser recording power is decreased. Bits are erased by external magnetic fields in some cases if the coercive force is below 1.0 and the recording sensitivity is lowered if the coercive force exceeds 2.5kOe. The C/N is extremely lowered if the thickness of the magnetic material is below 260Angstrom  and the laser power necessary for recording increases excessively if the thickness exceeds 800Angstrom .
Patent JP-H03131330-A (JP)
Title: Composite liquid filter and preparation thereof
Inventor: TSUCHIHARA TOYOJI
IPC: B01D67/00
Filed: 1989-10-16
Abstract: PURPOSE:To obtain a composite liquid filter excellent in strength, handleability and moldability by providing a dense layer having pores formed to the surface thereof on the outlet side of a filter fluid, a lower porous support layer having vertically long voids and a multi-void fiber base material. CONSTITUTION:A composite liquid filter consists of a surface dense layer 1 composed of a microporous film made of an acrylonitrile type polymer, the lower porous support layer 2 having vertically long voids 3 continued thereto and a multi-void fiber base material 5 composed of a nonwoven, knit or woven fabric. The surface dense layer 1 has filter pores having a pore size of 0.1-10mum and the lower porous support layer 2 has voids 3 of which about 90% has a diameter of 1-100mum and is constituted of a porous structure composed of a porous wall body having pores wherein the pore size of the microporous film wall surrounding each of the voids 3 is 0.01-10mum. By this method, a composite liquid filter having pores excellent in water permeability, strength, moldability and handleability is obtained.
Patent JP-H08106048-A (JP)
Title: Zoom lens
Inventor: MITSUSAKA MAKOTO
IPC: G02B13/18
Filed: 1994-10-06
Abstract: PURPOSE: To provide a zoom lens having a wide viewing angle and a high variable power ratio by comprising four lens groups as a whole and properly setting the refractive powers of respective lens groups and the moving conditions of respective lens groups at the time of varying the power. CONSTITUTION: This zoom lens comprises, in order from the object side, four lens groups of a first group L1 of a negative refractive power, a second group L2 of a positive refractive power, a third group L3 of a negative refractive power and a fourth group L4 of a positive refractive power, the fluctuation of an image plane by the power variation is compensated by moving the first group L1 to the side of the image plane while plotting a projected locus, the second group L2 is moved so that an interval between the second group L2 and the first group L1 is decreased and the lens constitution of the fourth group L4 is properly set in the case of power variation from wide angle end to the telescopic end.
Patent JP-H06115806-A (JP)
Title: Folding machine for thick paper
Inventor: SATO TETSUO
IPC: B65H45/22
Filed: 1992-10-08
Abstract: PURPOSE:To perform folding operation of thick paper without need of a helping hand at high speed and silently. CONSTITUTION:This thick paper folding machine is provided with a transport mechanism 3 to run thick paper introduced in order in the decided direction, and a raising mechanism 4 to slidingly contact a knife edge 411A and the like with the running thick paper and crease it, and raise the turn-over territory of the thick paper against the non-turn-over territory. It is also provided with a folding mechanism 5 with which the turn-over territory of the running thick paper passed through the raising mechanism 4 is guided with the guide face and folded on the non turn-over territory 22. Further, it is provided with a skew correcting roller 6 which rollingly contacts on the turn-over territory of the thick paper running at a peripheral speed different from the transport speed by the transport mechanism 3 arranged on the lower stream of the folding mechanism 5, and a fold forming mechanism 7 to pinchedly presses the folding part of the running thick paper with a press roller so as to form a fold.
Patent JP-H02158522-A (JP)
Title: Powder feeder
Inventor: MAAKU EFU SUPOORUDEINGU
IPC: B65G53/18
Filed: 1989-10-19
Abstract: PURPOSE: To feed powder at a high speed by equipping; a hopper, a carrier conduit means, a powder carrying means for carrying powder into a carrier gas flow, a hopper pressurizing means, and a feed adjusting means for responding to carrier gas pressure. CONSTITUTION: Powders are carried to a carrier conduit 18 via the suction orifice 34 of the conduit 18 at a carrying position 24 for the powder 14 in a hopper 12, and at that time, pressure gas extracted from a gas line 31 is fed into the hopper via feed gas line 40 by pressure adjusted to carrier gas pressure by a differential pressure adjustor R2, and the powder 14 are carried into a carrier gas flow at feed quantity for responding to this adjusted pressure. The adjustor R2 has a standard pressure inlet 36, and the inlet 36 is loaded with the gas pressure in the conduit 18 via a gas bleeding line 38, which detects the carrier gas pressure. A hopper pressurizing means is formed between an output conduit 26 and the hopper 12 via a hopper pressurizing line 118.
Patent JP-H08108341-A (JP)
Title: Chip scatter preventing device for machine tool
Inventor: TAKAHASHI YUKO
IPC: B23Q11/08
Filed: 1994-10-07
Abstract: PURPOSE: To prevent the scattering of chips from a working position on a rotary table to a charging position by using a partitioning wall, a block wall and wipers provided between the partitioning wall and the block wall, and especially, to prevent the intrusion of chips from a divided part of the wipers. CONSTITUTION: Plural wipers 4a, 4b made of elastic body are fitted to a fixed side block wall 3 opposite to the end surface of a partitioning wall 2 for partitioning a space on a turning table into a working position and a charging position so that the divided parts of these wipers 4a, 4b are relatively displaced from each other, and the intrusion of chips, which are generated at the working position at the time of working, into the charging position is thereby prevented.
Patent JP-H03130487-A (JP)
Title: Method and device of forming high density sheet
Inventor: BORUJIE FUREDORIKUSON
IPC: D21F1/00
Filed: 1990-10-11
Abstract: PURPOSE: To obtain the subject apparatus capable of forming a sheet having higher density by causing slurry to flow toward the direction of a first side of a screen barrier and moving a collecting wire along a second side to use a space between screen barriers as a forming zone. CONSTITUTION: Pulp is received in a cover 18 of a screen plate 16 of a barrier structure 14 in a direction indicated by an arrow 24, and an inlet opening 20 and an overflow opening 22 are equipped for discharging it in the direction indicated by an arrow 26. The pulp arrives at a gap between a cylindrical part of the screen plate 16 and a roller 34, and turbulence are generated in the gap by plural pulse generators 36. A collecting wire 46 is set up arround the screen plate, and paper webs are collected when entering into a wedge- shaped forming zone 52 between the collecting wire 46 and the screen plate through a paper web gas lot.
Patent JP-H02119385-A (JP)
Title: Picture transmission equipment
Inventor: IKESHOJI NOBUO
IPC: B41J5/30
Filed: 1988-10-28
Abstract: PURPOSE:To record a received picture on a recorder such as a printer automatically by outputting a recording start signal to the recorder when the reception of a picture decoder is finished and the write of the received picture into a picture memory is not implemented. CONSTITUTION:A picture transmitter encodes a picture signal caught by a camera by the known picture coding system, modulates it and sends the result to a transmission line 13. A decoder 10 decodes a signal received through the transmission line 13 to write a received picture data in a picture memory 6. A D/A converter 7 outputs a signal being the result of D/A-converting the received picture data in the picture memory 6 to an output selector 9 as a memory picture signal MEM. Then a printer controller 4 controls a freeze controller 14, a printer 5 and the output selector 9 according to a reception signal REC fed from the decoder 10, a printer state signal PRTST supplied from the printer 5 and the information supplied from a print execution switch 21 to print out the received picture.
Patent JP-H08111997-A (JP)
Title: Method and device for controlling brushless motor
Inventor: OGAWA YOSHIAKI
IPC: H02P6/08
Filed: 1994-10-07
Abstract: PURPOSE: To surely obtain accurate position detecting timing and, at the same time, to reduce the cost. CONSTITUTION: In a brushless motor controlling method by which the rotation of a brushless motor is controlled by switching the energization of a plurality of armature windings by detecting the position of a rotor 1a and chopping the upper and lower arms of an inverter section 2, a position detecting section 10 inputs the terminal voltages (induced voltages) at the armature windings and detects neutral points at the next edge of a spike voltage by comparing the induced voltages with a reference voltage and a control circuit 11 inputs a position signal R0 and obtains the position detecting timing of a point which is delayed in phase by a prescribed phase by calculating the time lag until the phase-delayed point (position detecting timing) from the time intervals among the neutral points and the neutral points.  Therefore, the energization of each armature winding is switched by turning on/off transistors U, V, W, X, Y, and Z in the inverter section 2 and chopping signals which chop the turning on/off signals of the transistors are outputted.
Patent JP-S62132711-A (JP)
Title: Production of aluminum nitride based powder
Inventor: YAMADA KOICHI
IPC: C01B21/072
Filed: 1985-12-02
Abstract: PURPOSE:To reduce the firing temperature, by mixing alumina powder with carbon powder, etc., and adding a metal (compound), e.g. Mg, Ca, Zr or Sn, etc., before firing and firing the resultant mixture in an atmosphere containing nitrogen to produce AlN based powder. CONSTITUTION:Alumina or a compound capable of forming alumina in a firing process is mixed with carbon powder or a compound capable of forming carbon at a high temperature and a substance selected from AlN powder, silicon nitride powder, silicon carbide powder and substances capable of forming such powders is added to the resultant mixture. At least one of metal (compound), e.g. Mg, Ca, Zr, Sn, etc., or salt thereof in an amount of 0.1-10pts.wt. based on 100pts. wt. alumina powder is added to the mixed powder. The resultant mixture is then fired in a nonoxidizing atmosphere containing nitrogen to afford the aimed fine aluminum nitride based powder having a uniform particle diameter at a relatively low firing temperature using the raw material alumina having a relatively large particle diameter.
Patent JP-2001090857-A (JP)
Title: Ball valve
Inventor: TAKEDA SHINJI
IPC: F16K27/06
Filed: 1999-09-24
Abstract: PROBLEM TO BE SOLVED: To provide a ball valve that does not result in strength reduction of a valve body, and can have a ball inserted and placed inside a passage of the valve body. SOLUTION: A female screw 13 notched on its four places in the circumferential direction to be discontinuous is mounted as being protruded into inside on an inner circumferential face in an inner part of a valve body 1. A male screw 51 is mounted on an outer circumferential face of a ball presser 5. O ring 521 is mounted on an annular groove 52 formed on the outer circumferential face of the ball presser 5 position on the opposite side of a ball 2. Parts of the outer circumferential face of the ball 2 that do not abut on a ball sheet 4 are notched. An outer diameter D2 of the ball 2 with notched parts 22 and 23 is smaller than an inner diameter d2 of a thread portion of the female screw 13 of the valve body 1 in a condition that the ball 2 is directed to have a passage closed.  A maximum outer diameter D1 of the ball 2 is smaller than an inner diameter d1 of the valve body 1 where the female screw 13 is not mounted.
Patent JP-H01149792-A (JP)
Title: 6-chloro-4-hydroxy-2-methyl-n-(2-piridyl)-2h-thi eno (2,3-e)-1, 2-thiazine-3-carboxamide-1, 1-dioxide enol ether, and its production and use
Inventor: DEIITERU BINDERU
IPC: C07D213/72
Filed: 1988-10-28
Abstract: NEW MATERIAL: A compd. of formula I (R is a 1-6C alkyl, a 5-7C cycloalkyl, benzyl).  
     EXAMPLE: 6-Chloro-4-(1-(ethoxycarbonyloxy)ethoxy)-2-methyl-N-(2-pyridyl)-2H- thieno[2,3-e]-1,2-thiazine-3-carboxamide-1,1-dioxide.  
     USE: An anti-inflammatory agent.  
     PROCESS: A salt of chlortenoxycam expressed by formula II [M +  is an alkaline (earth) metal cation, a tetraalkylammonium] and a compd. expressed by formula III (X is a halogen) are brought into reaction by using NaI, etc., at need in an inert polar nonprotonic solvent (e.g.: DMF, acetone, etc.). 
     COPYRIGHT: (C)1989,JPO
Patent JP-H04150118-A (JP)
Title: Digital radio transmission system
Inventor: KURAHASHI TOMOYUKI
IPC: H04B1/74
Filed: 1990-10-09
Abstract: PURPOSE:To accurately recognize a fault location by sending an alarm in the case of the occurrence of a fault on a hitless switching circuit even when the standby line of a relay switching circuit system is normal. CONSTITUTION:A pilot detection circuit 111 detects a signal via hitless switching circuits 108, 110 and compares it with a signal via relay switching circuits 112, 113 being usual circuits to decide the normality. That is, even when the switching of an active/a standby line is implemented by the hitless switching circuits 108, 110 due to instaneous interruption caused by fading or the like, the switching system via a standby line is monitored, an alarm is issued in the case of a fault and the regular switching is implemented in the case of the normal state. Thus, the transmission improving the quality of line at the switching is attained.
Patent JP-H10115621-A (JP)
Title: Dispenser
Inventor: SUZUKI HIROYUKI
IPC: G01N35/10
Filed: 1996-10-14
Abstract: PROBLEM TO BE SOLVED: To prevent the attachment of bubbles to the inner wall of the pipeline of a dispenser and the deterioration of dispensing accuracy. SOLUTION: Vibrating motors 44 are fixed to a tube 20 for communicating a nozzle 2 and a switching valve 22, a tube 24 for communicating the switching valve 22 and a syringe pump 26 and a tube 28 for communicating the switching valve 22, respectively. Then, the vibrating motors 44 are driven at the time other than the dispensing operation, and the vibrations are generated at the wall surfaces of the tubes. The bubbles attached to the wall surface are freed. At the same time, the pulling action and the pushing action of the syringe pump 26 are performed, washing liquid is made to flow and the freed bubbles are exhausted into a washing liquid tank 30 or discharged and excluded through the nozzle 2. Thus the bubbles are removed from the inside of the tubes.
Patent JP-H11107800-A (JP)
Title: Engine output control device
Inventor: TAKEUCHI JIRO
IPC: F02D29/02
Filed: 1997-10-03
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of revolving degradation against an abrupt increase in power steering load when a steering wheel is steered to the maximum angle from a position just before the maximum steering angle at the time of steering without driving. SOLUTION: This device detects the hydraulic pressure ΔP of power steeling (S1), and concurrently, computes the variation ΔP of hydraulic pressure (S2). It is then judged whether or not the hydraulic pressure variation ΔP is equal to or more than a set value (S6), when it is found to be ΔP < a set value, the quantity of air is corrected (opening correction of auxiliary air control valve) in response to the hydraulic pressure P of power steering (S8). Meanwhile, in the case of ΔP >= the set value, while the hydraulic pressure is regarded as the maximum value, the quantity of air is corrected in response to the maximum hydraulic pressure (S9), and concurrently, in order to enhance responsiveness, the quantity of fuel injection is corrected in increment (making air-fuel ration rich), and a leading angle for ignition timing is also corrected (S10).
Patent JP-S62132877-A (JP)
Title: Production of styrene oxide
Inventor: AOYAMA HIROSHI
IPC: C07D301/14
Filed: 1985-12-04
Abstract: PURPOSE:To obtain styrene oxide in high yield, by reacting styrene with an organic peracid in the presence of hydroquinone, di-tert-burylhydroxytoluene, etc., as a radical scavenger and a phosphorus-containing acid ester. CONSTITUTION:Styrene is oxidized with an organic peracid, e.g. peracetic acid or perbenzoic acid, etc., to give styrene oxide. In the process, the reaction is carried out in the presence of a phosphorus-containing acid ester, e.g. dioctyl dihydrogenphyrophosphate, and a radical scavenger at 30-50 deg.C for 5-7hr. Hydroquinone, di-tert-butylhydroxytoluene, catechol, p-tert-butylcatecol, hydroquinone monomethyl ether, etc., may be used as the radical scavenger, which is previously dissolved in the raw material styrene or the solvent and mixed with the styrene to carry out the reaction by dripping the organic peracid thereto. The amount of the radical scavenger is preferably 300-800ppm based on the mixture solution on the starting material.
Patent JP-H04148025-A (JP)
Title: Intake control device for car engine
Inventor: NAKAI HIDEO
IPC: F02B29/08
Filed: 1990-10-09
Abstract: PURPOSE:To improve the volumetric efficiency of intake when a poppet valve is fully opened in each speed region by providing an open-close timing opened later to the open-close timing of the poppet valve, for instance, in middle speed region than that in high speed region of an engine to a rotary valve. CONSTITUTION:In an intake manifold 1A connected through to a combustion chamber of an engine 1, a rotary valve 3 to open and close the intake manifold 1A is provided in addition to a poppet valve 2 to open and close an intake port. And the rotation supporting shaft 3A of the rotary valve 3 is connected to the output shaft of a driving motor 12 through a phase varying mechanism. And the rotation direction and the rotation amount of the driving motor 12 are controlled by a control section 13. And the control section 13, basing on engine rotation rates and intake flows or accelerator position informations, when the poppet valve 2 is fully opened, provides an open-close timing opened later to the open-close timing of the poppet valve 2 in middle speed region than that in high speed region to the rotary valve 3.
Patent JP-H08131875-A (JP)
Title: Production of pulverized powder
Inventor: KAMITE MASAYUKI
IPC: B02C21/00
Filed: 1994-11-04
Abstract: PURPOSE: To efficiently regulate pulverized powder formed by pulverizing cellulosic materials to a specific grain size or below and to improve the yield of this pulverized powder by improving a technique for pulverizing the cellulosic materials and a technique for sieving the grain sizes after pulverization. CONSTITUTION: The cellulosic materials are subjected to rough primary pulverizing and the primarily pulverized materials subjected to the primary pulverizing is subjected to secondary pulverizing. The secondarily pulverized materials subjected to the secondary pulverizing are subjected to sieving. The materials selected by this sieving are formed as the pulverized powder. The materials which are not selected by the sieving are again subjected to the secondary pulverizing.
Patent JP-H09114924-A (JP)
Title: Document image processor and document method image processing
Inventor: KURAMOCHI TSUTOMU
IPC: G06T11/60
Filed: 1995-10-19
Abstract: PROBLEM TO BE SOLVED: To correctly and efficiently extract the table of multiple frames and character areas existing in multiple frame areas. SOLUTION: Black picture elements in a document image are labeled by a black picture element labeling part 11 and based on the labels, an area extracting part 12 extracts table/frame areas or the like. A multiple frame detecting part 13 judges whether the extracted table/frame is multiple frames or not and in the case of multiple frames, the most inside table/frame area is defined as an object to extract the character area. A character part in the table/frame area is erased by a character erasing part 14, and background picture elements in the table/frame area are labeled by a white picture element labeling part 15. A label change part 16 changes the label of the picture element, in which the character or the like erased by the character erasing part 14 exists, into any label different from the other labels for each connected background picture element.  Then, a character area extracting part 17 surrounds the changed label with a circumscribed rectangle for each equal value and defines it as the character area.
Patent JP-S61152328-A (JP)
Title: Electric discharge apparatus equipped with automatic positioning device
Inventor: FURUTA TOSHIMI
IPC: B23H7/26
Filed: 1984-12-25
Abstract: PURPOSE:To eliminate the installation error in the manual installation of a mechanical switch by installing a mechanism for driving the mechanical switch in the vertical direction and installing said mechanism onto a main shaft, thus providing the automatic positioning function. CONSTITUTION:A mechanical switch 3 and a feeding device 9 constitute one device, and a driving mechanism for driving the mechanical switch 3 in the vertical direction is installed on a main shaft 1 side. When a workpiece 6 is to be automatically positioned, a working electrode 8 is demounted, and then the mechanical switch 3 is lowered to a certain position and fixed, and then the main shaft 1 is lowered until the contact shaft 7 of the mechanical switch 3 contacts with the workpiece 6 and transmits a detection signal.