baber/WOPTO huggingface dataset:
Patent JP-H01259103-A (JP)
Title: Method for sintering fe-c-cu series multi-component alloy powder
Inventor: FUJIWARA YASUYUKI
IPC: C22C33/02
Filed: 1988-04-08
Abstract: PURPOSE:To obtain a sintered body having high strength and excellent dimensional accuracy by heating Fe-C-Cu series multi-component alloy powder at temp. between m.p. of copper and m.p. of iron after heating at temp. lower than the m.p. of copper under N2 gas, H2 gas atmosphere or vacuum condition. CONSTITUTION:By adding <=1.5% graphite powder and <=about 8% Cu powder to Fe powder and further, if necessary, by adding the prescribed quantity of one or more kinds of alloy elements among Ni, Cr, Mo, Mn, Si, W, P, S, etc., the Fe-C-Cu series multi-component alloy powder is obtd. A little quantity of lubricator is added to this alloy powder and mixed and compacted. This green compact is heated at the temp. from 900 deg.C to the m.p. of copper for 30-80min under N2 gas and/or H2 gas atmosphere or vacuum condition and sintered. By this method, C, etc., is diffused in the Fe. Successively, the obtd. primary sintered body is heated at the temp. from the m.p. of copper to the m.p. of iron for at least 20min under the same atmosphere as the above and sintered to diffuse Cu. By this method, decarbonization and expansion by Cu are prevented and the sintered body having high strength and high dimensional accuracy is obtd.
Patent JP-H09282685-A (JP)
Title: Objective lens driving device of optical pickup
Inventor: SHIBA KAZUO
IPC: G11B7/09
Filed: 1996-04-10
Abstract: PROBLEM TO BE SOLVED: To provide a mechanism for surely removing backlash by pressing an objective lens on a sliding shaft while exerting side pressure to the lens in the shaft sliding type objective lens driving device of an optical pickup. SOLUTION: The objective lens driving device of an optical pickup is provided with a side pressure pressing means for laterally pressing a lens holder 1 on a sliding shaft 7. The inner peripheral shape of an axial hole 11 of the lens holder 1 is set so as to form two point supporting state supporting two places on the upper and lower ends of the inner peripheral face 113 by the sliding shaft 7 in the state the side pressure is exterted. The shape of the inner peripheral face of the axial hole is obtained by utilizing thermal shrinkage at the time of forming the lens holder. The lens holder 1 is supported by the sliding shaft 11 without the backlash and the tilt is suppressed.
Patent JP-H08281592-A (JP)
Title: Sheet cutting device
Inventor: NAKAO JUNICHI
IPC: B26D1/18
Filed: 1995-04-13
Abstract: PURPOSE: To dispense with a limit switch or a control circuit for reversal, and restrain generation of abnormal sound from a cutting device, in a cutter moving device, by providing a guide passage in the cutting direction and a guide passage in the returning passage having helixes continuing in the vicinity of the terminal end in the cutting direction and being in relation of reverse winding to each other. CONSTITUTION: By transmitting torque from a power source 14 to a shaft body 1 through a gear 13, the shaft body 1 is rotated. Accompanying this rotation, force in the cutting direction is applied to a moving body induction member 18 built in a guide passage 2, and the moving body induction member 18 moves a moving body 4 in the cutting direction while sliding in the guide passage 2. At this time, by arranging a sheet material on the upper face of a hollow rod 3, the sheet material is cut off between the first disc cutting blade 6a and the second disc cutting blade 6b of the moving body 4.  After completing this cutting, when the moving body 4 reaches the rear end in the cutting direction, the moving body induction member 18 is turned following to the change of curvature of the guide passage 2, helix in the cutting direction is changed to helix in the returning direction, and hence the moving body 4 is moved in the returning direction.
Patent JP-S58206527-A (JP)
Title: Material for separating monocyte from lymphocyte in leukocyte component
Inventor: AKAO TSUTAE
IPC: A61K35/14
Filed: 1982-05-26
Abstract: PURPOSE:A separating material capable of separating monocytes from lymphocytes in a leukocyte component at the same time in high purity in high yield without damaging their functions, containing an acidic functional group of the magnesium salt type on a carrier. CONSTITUTION:A separating agent for separating monocytes from lymphocytes in a leukocyte component, containing an acidic functional group [e.g., (-SO3)2Mg] of the magnesium salt type on a carrier (e.g., polystyrene). The separating agent is brought into contact with the leukocyte component in a solution containing >=1g/dl protein, so that monocytes and granulocytes are separated from the lymphocyte, because the lymphocytes has larger negative charge of cell membrane than the monocytes and the granulocytes, the monocytes and the granulocytes have higher cell adhesion than the lymphocytes, and the magnesium ion at the end of the acidic functional group can exhibit synergistic effect on the strengthening of the adhesion. If the granulocytes are preremoved from the leukocyte component, the monocytes can be isolated simultaneously.
Patent JP-S5715159-A (JP)
Title: Relief alarming device
Inventor: FUKUDA HIROAKI
IPC: F16K17/02
Filed: 1980-06-28
Abstract: PURPOSE: To prevent detonation of an engine by incorporating in a relief valve, a device which gives a alarm when the charged pressure exceeds a set value, in the turbocharging system for the car equipped with a turbocharged engine.  
     CONSTITUTION: The apparatus which gives alarm when the charged pressure exceeds a set value, namely the switch apparatus which consists of a magnet 14 and a lead switch 15 etc. is incorporated into a relief valve. When the charged pressure from a compressor increases and exceeds a set value, the charged pressure is introduced into the chamber 13a of a switch cover 13 through a by-pass passage 17 and operates onto a bellowphragm 11 and pushes a spring 12, and a valve plate 5 is separated from a valve block 2. Therefore, the charged pressure in an intake manifold is discharged as shown by the arrow P in the dotted line, and detonation of an engine is prevented. At the same time, operation of a valve shaft 4 precedes, and a shielding plate 4a gets out from between the magnet 14 and the lead switch 15, and a magnetic path is opened as shown D in the figure, and the lead switch 15 operates to light up an alarm lamp. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H02268878-A (JP)
Title: Cleaning device
Inventor: SASAKI MICHIHITO
IPC: B08B3/08
Filed: 1989-04-10
Abstract: PURPOSE:To prevent escape of a solvent vapor from a cleaning tank with a simple means by providing a lid capable of covering the opening of the cleaning tank at the upper part of a container for housing a material to be cleaned. CONSTITUTION:A lid 3 has an area sufficient to cover the opening of a cleaning tank 1, a material to be cleaned is placed in a container 2, the lid 3 is fixed to the container 2, and the container 2 provided with the lid 2 is inserted as such into the cleaning tank 1 from its opening. Consequently, the opening of the cleaning tank 1 is covered with the lid 3, the solvent vapor in the cleaning tank 1 is blocked by the lid 3, and escape of the vapor from the opening is prevented. The container 2 is discharged from the cleaning tank 1 with the lid 3 put on, then the lid 3 is detached from the container 2, and the material in the container is taken out. In this case, the lid 3 is engaged with the container 2 with a simple method to improve its workability.
Patent JP-S5925374-A (JP)
Inventor: KAARU ORAFU JIEROTSUTE
IPC: A61K31/455
Filed: 1983-05-19
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S62244783-A (JP)
Title: Hatch cover device
Inventor: SHIMOIKE SHIRO
IPC: B63B19/18
Filed: 1986-04-18
Abstract: PURPOSE:To provide a mechanism, which fits a hatch cover into a hatch, and to reduce a wind pressure during sailing further to increase a loading area on an upper deck, by vertically movably supporting the hatch cover for the hatch further providing guide tracks on the ship side upper deck still further drawing out the hatch cover on said tracks. CONSTITUTION:When a hatch is opened, first a hatch cover 1 is lifted protruding from a deck 2 by driving a hydraulic jack 5. Next the hatch cover 1, if a pinion 8 meshed with a rack 10 below the hatch cover 1 is driven, moves on the upper deck 2 toward the ship side rolling a rolling wheel 11 on guide grooves 6, 6a, and the hatch cover stops being adapted to a stopper 7. In this way, the hatch is fully opened. And next, when the hatch is closed, the hatch cover 1, which is moved to a hatch opening part by driving the pinion 8, supports a sliding groove 1a to a head part metal fixture 5a of the hydraulic jack 5. Subsequently, if the hydraulic jack 5 is contracted, the hatch cover 1 is fitted into the hatch forming the same surface to the upper deck 2.
Patent JP-H09278048-A (JP)
Title: Container having lid made of synthetic resin
Inventor: KAWANISHI YASUHIKO
IPC: B65F1/16
Filed: 1996-04-10
Abstract: PROBLEM TO BE SOLVED: To fix a lid made of a synthetic resin to a main body made of a synthetic resin, and simplify the structure, and manufacture it at a low cost. SOLUTION: For a container having a lid made of a synthetic resin comprising of a lid 1 made of a synthetic resin and a main body 2 made of a synthetic resin, a recessed notch 13 is provided on the lid 1 made of a synthetic resin, and at the entrance of the recessed notch 13, a protuberance 14 for engagement is provided.  Then, on the main body 2 made of a synthetic resin, a protruding part 23 which is inserted in the recessed notch 13 on the lid 1 made of a synthetic resin, is provided, and when the lid 1 made of a synthetic resin is placed on the opening of the main body 1 made of a synthetic resin, and protruding part 23 on the main body 2 made of a synthetic resin is inserted in the recessed notch 13 on the lid 1 made of a synthetic resin, and at the same time, the protuberance 14 for engagement at the entrance of the recessed notch 13 on the lid 1 made of a synthetic resin, is engaged with the protruding part 23 on the main body 2 made of a synthetic resin.
Patent JP-H09280185-A (JP)
Title: Valve mechanism for compressor
Inventor: ITO SHIGERU
IPC: F04C29/12
Filed: 1996-04-10
Abstract: PROBLEM TO BE SOLVED: To improve durability by the behavior stability of a lead valve, to reduce noise by the reduction of pulsation. SOLUTION: A partitioning plate 25a, for partitioning between a compression chamber 41 and a discharge chamber 36, has a lead valve 31; for opening a discharge hole 25c by the different pressure of a compression gas when the discharge of the compressed gas is started, and for closing the hole 25c by own spring force when the discharge is finished; and moreover, the following are provided on a partitioning plate 25b, a pressing means : for moving the lead valve 31 to the discharge chamber 36 side, and also for pressing the lead valve 31 to a fixed retainer 32 side when discharge is commenced, and a housing chamber 1: for movably housing the pressing means to the compression chamber side and the discharge chamber 36 side.
Patent JP-S63254972-A (JP)
Title: Twin-screw extruder for food processing
Inventor: SAKAMOTO TORU
IPC: A21C11/20
Filed: 1987-04-10
Abstract: PURPOSE:To obtain a homogeneous food, by mixing, extruding and expanding corn grits, a seasoning and water using a twin-screw extruder furnished with a heating means at the exterior part of a barrel and with a liquid-injection port at a specific position of the barrel wall. CONSTITUTION:A twin-screw extruder containing a pair of mutually intermeshing parallel screws 4 in a barrel 1 is furnished with a heating means 7 at the outer circumference of the barrel 1 and with at least one liquid-injection port 8 to inject e.g. water added with a seasoning. The injection port is bored on the barrel wall at a position shifted from the opening port of a hopper 3 toward the extrusion direction. Preferably, the lead of the screw 4 in a buffer zone C is made to be larger than the lead in the feed zone A and extrusion zone B and the liquid-injection ports 8 are provided at the feeding zone A and the extrusion zone B.
Patent JP-H06297110-A (JP)
Title: Cooling drum for continuously casting cast strip and its manufacture
Inventor: TANAKA SHIGENORI
IPC: C23C14/14
Filed: 1993-04-15
Abstract: PURPOSE:To improve the stickness of a plating layer and the service life index of a cooling drum by forming a specific size of dimples on the surface of the roll for continuous casting and arranging a hard plating layer having the specific thickness and hardness on the surface layer having the dimples. CONSTITUTION:On the surface of the cooling roll 1 for continuous casting, the dimples 5 having 0.1-0.8mm diameter and 5-50mum depth are formed, and on the surface of the dimples, a hard plating layer 4 having 1-50mum thickness and >=500Hv hardness is formed. Further, under this hard plating layer, an under layer of Ni plating layer 3 is formed. Then, the cooling drum is used in the gaseous nitrogen atmosphere. By this constitution, the service life index of the cooling drum is improved, and by using gaseous N2, nitride is formed in the hard plating layer and the wear resistance is improved, and the service life index is further improved.
Patent JP-H02267757-A (JP)
Title: Magneto-optical recorder
Inventor: ITO HIROSHI
IPC: G11B11/10
Filed: 1989-04-08
Abstract: PURPOSE:To set an appropriate erasing pulse wherever a disk is positioned without controlling the disk to be constant in linear velocity and to enable overwriting of information of fast access speed by storing a bit of information relative to an erasing pulse for erasing information into a memory. CONSTITUTION:A position of an optical head 1 mounted on a linear actuator 2 is detected by a position detector 3, and based on this position information, a bit of information is read out of the memory 5 recorded with the pulse width, height and repeat frequency of a laser corresponding to the optical head in a disk radial position by an erasing pulse generator 4, and then a laser driving signal for erasing pulse is generated. Then, a recording data is modulated by an encoder 6, and is sent to a recording pulse generator 7 to generate a laser driving signal for recording pulse. These laser driving signal for erasing pulse and laser driving signal for recording pulse are mixed up by a mixer 8, and an output from this mixer 8 is sent to a laser driving circuit 9, so that the laser in the optical head is driven to perform the overwriting.
Patent JP-H0396765-A (JP)
Title: Hydraulic seal and piston rod guide
Inventor: DAGURASU EICHI JIIRINSUKII
IPC: F16J15/16
Filed: 1990-04-03
Abstract: PURPOSE: To simplify a structure and to reduce a manufacturing cost and a material cost by providing the outside seal lip part and the inside dynamic seal lip part, and arranging the deformation preventive support part composed of annular elastomer held by a bushing in a cylinder. CONSTITUTION: The slightly expansively opening outside end part 35 having the annular step part 36 is arranged in a bushing 30. An elastomer static and dynamic seal 50 with a girder spring is installed in the inside end part of the busing 30. An outward general V-shaped annular groove 52 is arranged in the inside end part of the bushing for installation so that a part of main body of the seal 50 is received/supported by this. The inward tapered conical wall part 55 is formed on the inside end of the bushing 30. The wall part 55 forms the deformation preventive support part of the dynamic seal part 58 inside of the seal 50. The dynamic seal part 58 is held by the girder spring 60 received/ supported by an outward groove of the seal.
Patent JP-S57204298-A (JP)
Title: Dewatering method for highly-concentrated sludge
Inventor: TOUNAI HIROMASA
IPC: C05F7/00
Filed: 1981-06-09
Abstract: PURPOSE: To lower the tackiness of sludge and to improve its dewatering efficiency at a low cost, by subjecting highly-concentrated sludge, which contains sludge untreated by a water-purifying process, to aerobic biological treatment to condition the sludge, and then dewatering the conditioned sludge.  
     CONSTITUTION: Water to be purified, e.g. sewage or industrial waste water, is fed into a sedimentation vessel 1, and its supernatant liquid is fed into an apparatus 2 to biologically treat the supernatant liquid with active sludge. The purified water is drained from the water-purifying apparatus 2, while recovered highly-concentrated sludge is extracted into an aeration vessel 3 in company with relatively highly-concentrated precipitating sludge sedimented in the sedimentation vessel 1. In the aeration vessel 3, the fed sludge is aerated and aerobically biologically treated. The treated sludge is then fed to a forcible dewatering apparatus 4. After the sludge is dewatered, the effluent is suitably drained or  circulated into the sedimentation vessel 1 or the like, while the dewatered sludge is fed to a drier 5. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H09281532-A (JP)
Title: Optical amplifier and method as well as optical transmission system having optical amplifier
Inventor: KOSAKA JUNYA
IPC: H04B10/297
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier device capable of independently controlling the signal light outputs of individual wavelengths with a wavelength multiplex transmission system, increasing system series at a low cost and independently controlling the signal light progressing in directions reverse from each other in a bidirectional optical transmission system. SOLUTION: The signal light introduced from one or plural transmission signal light input ports 2 is introduced from a polarized wave identifying and synthesizing means 3 to a polarized wave holding and optical amplifying medium 4. This optical amplifying medium 4 is selectively excited by an exciting means 6 and the amplified light signal is identified and separated by a polarized wave separating means 7, following which the separated light signals are partly branched by a branching means 18. The branched light detected by a detecting means 9 is so controlled by the exciting means 6 as to be controlled to a predetermined value and the greater part of the light is led out of one or plural output ports 11 to parallel transmission fibers.
Patent JP-H06272344-A (JP)
Title: Construction method of very thick concrete slab
Inventor: ARITA YASUMASA
IPC: E04B5/38
Filed: 1993-03-24
Abstract: PURPOSE:To shorten the construction period by constructing a concrete slab having inverted beams integrally with a lower layer, and placing an upper layer slab concrete on the concrete slab up to specific thickness. CONSTITUTION:Slab reinforcements 8 of a lower layer concrete slab 7 are arranged, and beam reinforcements 9 of inverted beams 6 are arranged to a position right above beams 2 of an underfloor slab 1 together with the lower layer concrete slab 7. After that, inverted beam forms are erected around the beam reinforcements 9 of the inverted beams 6, and an lower layer slab concrete C7 and inverted beam concretes C6 are placed. Then, after the lower layer concrete slab 7 is solidified, an upper layer concrete slab 11 is placed up to specific thickness to construct a very thick concrete slab 12. Accordingly, temporary materials are reduced, and the construction cost can be reduced.
Patent JP-S5715471-A (JP)
Title: Junction type field effect semiconductor device and manufacture thereof
Inventor: INOMATA FUJIHIKO
IPC: H01L29/808
Filed: 1980-07-02
Abstract: PURPOSE:To obtain high gm without necessity of increasing the depth of a gate region by covering an epitaxial layer grown when the source and the drain regions of a J-FET are formed with an SiO2 film, opening a hole at the film and burying source and drain regions which contact with the epitaxial layer. CONSTITUTION:An n type layer 2 is epitaxially grown on a P<+> type Si substrate 1 becoming a substrate gate, and with an SiO2 film 6 as a mask a P<+> type isolation region 3 which contacts with the substrate 1 is diffused in the periphery of the layer 2. Then, it is photoetched, a window is opened at the center of the film 6, a shallow P<+> type gate region 4 is formed in the layer 2 by injecting P type impurity ions or depositing, and windows for source and drain contacting are opened at the films 6 disposed at both sides as by the ordinary way. Thereafter, an n type source and drain region 8 is selectively accumulated in the window, an extremely shallow n<+> type region 8a is formed on the lower surface, and source and drain electrodes 7 made of aluminum are mounted on the region 8.
Patent JP-H03294069-A (JP)
Title: Method and equipment for resistance welding
Inventor: HAYAKAWA NOBUYUKI
IPC: B23K11/02
Filed: 1990-04-04
Abstract: PURPOSE:To easily weld tubes having a complicated shape in subjecting to tubes to resistance welding, by indexing the accurate welding position, preventing strain for the welding pressurization and then, performing pressure welding by an upper electrode and a lower electrode. CONSTITUTION:In subjecting a port 1 and a cylinder tube 3 to resistance welding, the port 1 is mounted on the lower electrode 2 and one end of the cylinder tube 3 and the other end thereof are held in a chuck 5 of an indexing device 4 and between stoppers 7 of a, work setting device 6, respectively and the accurate welding position is indexed. A central electrode 18 of a central electrode device 17 is then advanced into the cylinder tube 3 and the inside of the tube 3 is clamped and then, the cylinder tube 3 and the port 1 are subjected to resistance welding by the plural upper electrode 23 and lower electrode 2 having the different diameters. By this method, the tubes having the complicated shape such as the different diameters can be easily subjected to resistance welding.
Patent JP-H04224885-A (JP)
Title: Liquid crystal display and liquid crystal mixture based on princpile of electrically controllable birefringence
Inventor: TOOMASU GEERUHAARU
IPC: C09K19/42
Filed: 1991-03-29
Abstract: PURPOSE: To provide a negative dielectric anisotropy and to improve the long- term stability, by making a specified nematic liq. crystal mixture exist in a cell formed by outside sheets each having an electrode coating on which each arrangement layer is laid on its inner face.  
     CONSTITUTION: In a cell (A) formed out of two outside sheets (a) whose faces are in parallel and each having an electrode coating on which each arrangement layer is laid on its inner face and their peripheral edge (b), a compd. (B) of formula I (wherein R 1-2  is an at most 15C alkyl or an alkenyl but one CH 2  may be substd. with a group selected from -O-, -S- and -CO- or either one of R 1  and R 2  is alternatively a group of formula II and R 3  is one of R 1-2 ; m, n and o are each 0-2), is incorporated. A liq. display based on the principle of electrically controlled birefringence is obtd. by making a nematic liq. crystal mixture with a negative dielectric anisotropy exist and making the tilt angle formed between the longer axis of each molecule being brought into contact with the surface of each component (a) and its component (a) to be 85-95°. 
     COPYRIGHT: (C)1992,JPO