baber/WOPTO huggingface dataset:
Patent JP-S5945677-A (JP)
Title: Magnetic bubble element
Inventor: URAI HARUO
IPC: G11C11/14
Filed: 1982-09-03
Abstract: PURPOSE:To stabilize the erasion or contraction of magnetic bubbles of a bubble stretcher, by setting a prescribed ratio between the space between hairpin conductors and the distance between the center of conductor thickness and the centr of a magnetic thin film. CONSTITUTION:A ratio 2W/H is set at >=4.0 between the space 2W between conductors of a hairpin conductor pattern 5 and the distance H between the center of thickness of the pattern 5 and the center of a magnetic thin film 1. As a result, the stable erasion or contraction is ensured for a magnetic bubble 4 which is expanded by a hairpin and detected. This prevents the bubble 4 from jumping outside the conductor 5 as well as the remaining of the bubble 4 at a place near a transfer line. Thus it is possible to obtain a magnetic bubble element having a hairpin conductor magnetic bubble stretcher which is free from unstable erasion or contraction of a magnetic bubble.
Patent JP-S6133209-A (JP)
Title: Porous ceramic structural body
Inventor: OKAMOTO YASUHIDE
IPC: B01D46/00
Filed: 1984-07-24
Abstract: PURPOSE:To capture uniformly pulverous carbon particles over the entire length of partition walls by providing inlet holes and outlet holes having the sectional area increasing gradually toward both ends. CONSTITUTION:The porous ceramic structural body is made into the construction in which a group of the inlet holes 22 bored in the axial direction and a group of the outlet holes 23 adjacent thereto by way of the partition walls are provided. The sectional area of the holes 22 decreases gradually toward the sealed ends and the sectional area of the holes 23 increases gradually toward the open ends. As the gaseous fluid admitted through the inlet ends flows out to the outlet holes through the walls 24 and advances toward the sealed ends, the volume of the gas decreases and therefore the sectional area is gradually decreased to maintain the flow rate as constant as possible and to discharge uniformly the gas from the entire part of the walls 24. The thickness of the walls 24 is preferably made constant.
Patent JP-H08327495-A (JP)
Title: Leakage detector
Inventor: SUYAMA KIICHI
IPC: G01M3/26
Filed: 1995-05-29
Abstract: PURPOSE: To provide a leakage detector which can automatically detect leakage from a supply pipe buried underground without manual aid and is improved in safety. CONSTITUTION: The main body 100 of a leakage detector is provided with a flow passage 13 for detecting back flow. When the flow rate of a gas flowing through a supply pipe 12A becomes smaller than a preset very small value, the flow passage 13 is interrupted by driving a cutoff valve 101. Then the output of a pressure sensor 104 is monitored for discriminating the occurrence of a sharp pressure drop. When no sharp pressure drop occurs, it is considered that there is a possibility of gas leakage from an upstream-side gas supply pipe and the generation of a back flow is discriminated from the detected results of a flow sensor 103 and, at the same time, the occurrence of pressure fluctuation is discriminated from the detected results of a pressure sensor 105.  When no pressure fluctuation occurs and the number of occurring times of back flows larger than a prescribed amount reaches a prescribed number, it is discriminated that gas leakage occurs from the supply pipe 12A and an alarm is issued.
Patent JP-S5858201-A (JP)
Title: Atomized iron powder for powder metallurgy with low apparent density having superior compressibility as well as superior fluidity and moldability
Inventor: NITSUTA MINORU
IPC: B22F1/00
Filed: 1981-09-30
Abstract: PURPOSE:To obtain the titled atomized iron powder by adjusting the contents of O, C, N, Mn, P and S to specified amounts or less, specifying the amount of powder having a specified grain size or below, and providing specified values of apparent density, green compacting density under a specified molding pressure and deflective strength of a green compact under a specified molding pressure. CONSTITUTION:The composition of iron powder is composed of, by weight, <0.25% O, <0.05% C, <0.005% N, <0.4% Mn, <0.05% P, <0.1% S and the balance Fe with inevitable impurities, and the contents of the impurities are restricted to specified values or less. The iron powder is regulated so that powder having <=45mum grain size occupies 10-50wt%, and 2-2.5g/cm<3> apparent density, >=6.7g/cm<3> green compacting density under 5t/cm<2> molding pressure and >=250kg/cm<2> deflective strength of a green compact under 4.2t/cm<2> molding pressure are provided.
Patent JP-H06342974-A (JP)
Title: Soldering method using preform solder
Inventor: OOMURA TOSHIMASA
IPC: H01L21/52
Filed: 1993-06-01
Abstract: PURPOSE:To eliminate the necessity of a jig for surface treatment of solder preforms by using solder preforms smaller than half the width of the part to be soldered. CONSTITUTION:A solder preform 3 having a width smaller than half that of a part 1 to be connected by holding the solder 3 between the part 1 to be connected and a part 2 to be connected, the part 1 to be connected is pressed to the part 2 to be connected and heated. As a result, melted solder 3' is pressed to be broken by an oxide film 4 of an end face of the solder so that the solder 3' spreads and wets surfaces of the parts 1 and 2 to be connected, and soldering is satisfactorily carried out except a part in contact with the oxide film 4. Accordingly, the soldered part which has more excellent airtight sealability, heat conductance and heat resistant fatigue characteristics than those of prior art is simply obtained.
Patent JP-H04270280-A (JP)
Title: Therapeutic agent for ischemic disease
Inventor: KATO MASAYUKI
IPC: A61P25/28
Filed: 1991-03-15
Abstract: PURPOSE:To provide the title agent useful for the therapies of arrhythmia, cardiac infarction, heart failure etc., also useful for the therapies of central nervous system disorders, gastrointestinal diseases, etc., because of its 5-HT3 antagonistic activity. CONSTITUTION:The objective therapeutic agent containing a compound (or its salt) of formula I (R<1> is H, lower alkyl, etc.; R<2> is H, halogen, etc.; R<3> is (substituted)imidazolyl or pyridyl; R<4> is H, lower alkyl, etc.; R<5> is H, OH, etc., or R<4> and R<5> are combined to form additional bond). The compound of the formula is e.g. 8,9-dihydro-10-methyl-7[(5-methyl-1H-imidazol-4-yl)methyl]pyrido[1,2-a ]indole-6(7H)-one. This compound can be obtained by Mannich reaction of e.g. a compound of formula II (or its salt) in a solvent such as dioxane in the presence of formaldehyde and a N,N-dialkylamine using an acid such as acetic or hydrochloric acid.
Patent JP-H074924-A (JP)
Title: On-line measuring apparatus of sheet thickness
Inventor: TOJO FUMIO
IPC: G01B11/06
Filed: 1991-06-26
Abstract: PURPOSE:To measure a precise sheet thickness in an on-line manner by a method wherein the influence of an error due to a thermal deformation, an external stress or the like is reduced by a sample means. CONSTITUTION:An eddy current-type displacement sensor 5 acting also as a knife edge is installed in a part of a laser beam-type measuring instrument 3 between a light projector 3a and a photodetector 3b at the upper part of the axial line of a measuring shaft or a roll 1. A distance A from the knife edge up to the surface of the measuring shaft or the roll 1 is detected by a change in a magnetic field. At the same time, a distance B from the knife edge up to the surface of a sheet 2 is measured. A sheet thickness D is measured as D=A-B on the basis of both values.
Patent JP-H10333111-A (JP)
Title: Inspecting device for liquid crystal display panel
Inventor: HASEGAWA MASASHI
IPC: G02F1/1333
Filed: 1997-05-29
Abstract: PROBLEM TO BE SOLVED: To reduce positional deviation between a liquid crystal display panel and a probe by suppressing the inclination of an inspection stage caused by the load of the probe by providing a pressing means actuating the load at a point opposed to the working point of the load caused by the probe for the display area of the liquid crystal display panel. SOLUTION: When the liquid crystal display panel 12 and the probe are pressed by each other, an unbalanced load by which a work table 38 is inclined to a Z axial line is actuated to the work table 38 through the liquid crystal display panel 12. Then, at the work table 38 of an inspecting device 10, not only two adjacent end edge parts receive the load caused by the probe but also another two end edge parts receive the load caused by a leaf spring, and also the working point of the load caused by the leaf spring is made as the point opposed to the working point of the load caused by the probe for the display area of the liquid crystal display panel 12. Thus, the inclination of the work table 38 due to the load of the probe is suppressed by the load of the leaf spring.
Patent JP-2000349770-A (JP)
Title: Distribution processing method and device for ip packet routing processor in atm
Inventor: MUKONO MASAHIRO
IPC: H04L12/28
Filed: 1999-06-01
Abstract: PROBLEM TO BE SOLVED: To improve a processing capability of an IP packet by using plural processors, and by this load distribution where routing (load) of the IP packet is performed in an ATM communication network. SOLUTION: An IP packet is distributed to plural processors (10, 11 and 12) and processed. A master processor 10 distributes this interface IP address and routing information to slave processors 11 and 12. The slave processors 11 and 12 store the same interface IP address and routing information and execute routing by using them.
Patent JP-H04270114-A (JP)
Title: Heat-resistant transition alumina and its production
Inventor: HAMANO SEIICHI
IPC: C01F17/00
Filed: 1991-06-26
Abstract: PURPOSE:To prevent reduction in specific surface area at high temperature by blending aluminum sulfate with a lanthanum compound in a specific ratio of Al2O3 and La by weight, heating and thermally decomposing. CONSTITUTION:Aluminum sulfate shown by a general formula Al2(SO4)3.nH2O ((n) is 0-27) is blended with a lanthanum compound such as lanthanum acetate in the weight ratio of Al2O3/La of 100/1-12, dissolved in water and mixed. Then the mixed solution is evaporated to dryness by heating in an oven and water content is made <= hexahydrate. Then the mixture is heated and thermally decomposed in the atmosphere at 800-1,500 deg.C for 0.1 second to 100 hours, preferably 900-1,300 deg.C for 10 minutes to 50 hours to give heat-resistant transition Al2O3 having 0.6-2.0cc/g pore volume and >=80m<2>/g BET specific surface area after heating 1,200 deg.C for 3 hours.
Patent JP-H0822915-A (JP)
Title: Soft magnetic thin film, magnetic head and recorder using the thin film
Inventor: KIRINO FUMIYOSHI
IPC: G11B5/187
Filed: 1994-07-06
Abstract: PURPOSE:To improve thermal stability of soft magnetic characteristics by a method wherein the soft magnetic thin film containing Fe and Ta as magnetic elements and at least one kind of the first element selected from the first group comprising Si, B, C and N is added thereto further contains a non-magnetic second element having the different atomic radius from that of said magnetic elements. CONSTITUTION:For example Cr, Nb as the second element are added to the soft magnetic thin film 1 comprising Fe, Ta as the magnetic elements so that the soft magnetic characteristics may be displayed by heat-treating the amorphous FeTaCCrNb thin film. When this soft magnetic thin film 1 is applied to e.g. a MIG magnetic head, an SiO2 film is formed on the soft magnetic thin film 1, while a Cr film is formed on the SiO2 film. Both ferrite substrate 2 comprising the soft magnetic films 1 opposite to each other are junctioned by a lead glass 4 so as to make a gap 3 for recording/reproducing between the soft magnetic thin films 1 on the sliding surfaces. Accordingly, the thermal stability of the soft magnetic characteristics can be improved thereby enhancing reliability of a magnetic head etc.
Patent JP-S6132521-A (JP)
Title: Method for x-ray exposure and device thereof
Inventor: SUZUKI KATSUMI
IPC: G03F7/20
Filed: 1984-07-25
Abstract: PURPOSE:To accomplish a high transfer efficiency and a high transfer accuracy simultaneously by a method wherein, using Mo as the anode which becomes the source of X-rays, W is used as the material for the pattern of an X-ray exposure mask, and an Si thin film is used as the supporting substrate of the pattern. CONSTITUTION:An electron gun 41 and an Mo anode 42 are provided in a vacuum chamber 43, and the electrons emitted from the electron gun 41 come in collision with the Mo target 42, and X-ray are emitted. Said X-rays pass through the Be window 44 having the thickness of 10-50mum, pass through a chamber 45 wherein He is filled, and the pattern 47 consisting of W provided on an Si-X-ray exposing mask substrate 46 having the film thickness of 0.1-2mum, and fixed at the tip of the chamber 45, is projected on an X-ray sensitive resist layer 49 which is coated on the substrate 48 in advance. A patterning is performed, using the prescribed developing solution, on the resist layer 40 wherein the above-mentioned pattern 47 is projected using the desired energy.
Patent JP-S6215825-A (JP)
Title: Processing method for semiconductor wafer
Inventor: OGAWA SHINICHI
IPC: H01L21/322
Filed: 1985-07-12
Abstract: PURPOSE:To enhance a gettering effect furthermore, by directly attaching a nitride film and polycrystalline silicon not only on the back surface of a wafer but also on a silicon exposed part around the surface of an element so as to yield strain at an interface, applying the gettering from the surrounding part and the back surface of the element, and suppressing the occurrence of minute defects. CONSTITUTION:On a silicon substrate 1, a silicon oxide (SiO2) film 2 is formed. Thereafter, a part of the silicon oxide film 2 other than an element forming region or a part, which is to become a scribe-in part, is blanked. Then, the SiO2 film at the back surface is simultaneously removed with HF etching liquid. A silicon nitride film 3 is attached to the silicon part of the exposed back surface. The silicon nitride film is also attached to the upper surface. Thereafter, the nitride film on an active element region 7 is removed by dry etching. An element is patterned on the silicon wafer at the upper surface. A silicon nitride film 4 is attached to the silicon part of the exposed surface at a position corresponding to the periphery of the element. As a result, interface strain 5 is yielded at the back surface of the silicon wafer by high temperature heat treatment. Interface strain 6 is also yielded at the periphery of the element of the surface of the silicon wafer. Thus the gettering effect becomes further effective.
Patent JP-S6312109-A (JP)
Title: Superconducting magnet
Inventor: SANADA YOSHINAO
IPC: H01F6/06
Filed: 1986-07-03
Abstract: PURPOSE:To improve the magnetic field precision by winding the winding portion of a superconducting magnet around a bobbin which is axially divided into an odd number of portions, and forming the winding portions of both ends with superconductor pancake windings, thereby reducing the amount of axial displacement. CONSTITUTION:A winding portion 4 of a superconducting magnet is wound around a bobbin 1 which is axially divided into an odd number of portions. The winding portions 4b of both ends are formed with superconductor pancake windings. Hereupon, the axial compression force is divisionally supported at the flange portions 11 of the bobbin 1, so the amount of axial displacement is shared and the total displacement amount is reduced. By this, the magnetic field precision is improved.
Patent JP-S5379433-A (JP)
Title: Solid state color pickup device
Inventor: TAKAHASHI KENJI
IPC: H04N9/07
Filed: 1976-12-24
Abstract: PURPOSE: To obtain a single-plate camera unit which causes no deterioration of the resolution even with the pickup element of a small picture element number, by securing a special disposition for the optical system filter. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H11322121-A (JP)
Title: Paper feeder
Inventor: KITAGAWA HIROICHI
IPC: B65H5/06
Filed: 1998-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a paper feeder capable of easily performing jam processing of one-side formed paper generated in a paper carrying in route and jam processing of refed paper generated in a bypass route, without being accompanied with a tear of paper. SOLUTION: A carrier roller 18 and a carrying in roller 19 are arranged on the halfway of a paper carrying in route to an intermediate tray 14, a paper carrying out route refeeding paper in stock in the intermediate tray 14 to an image forming part is arranged on the upper part of the intermediate tray 14, the device is provided with a means 21 pressing paper in stock to the carrier roller 18, an overlapped delivery prevention roller 22 and a route switching means 23 bypassing paper in stock to the side of a paper carrying out route 20, the other route structural member 37 is provided so as to be movable in a route open direction for a paper carrying in route structural member 36 on the side of a device main body, and the carrying in roller 19 is made away from the carrier roller 18 according to a route open moving of this other route structural member 37.
Patent JP-S5679004-A (JP)
Title: Pneumatic tire
Inventor: NANUN TADANOBU
IPC: B60C11/00
Filed: 1979-11-30
Abstract: PURPOSE: To decrease the rotative resistance of the tire by dividing a tread part of the tire into the first rubber layer to contact the road surface and the second rubber layer to be sandwiched between the first rubber layer a belt reinforcement layer, each rubber layer being made of a rubber material of a specified nature.  
     CONSTITUTION: The pneumatic tire generally included a pair of bead part 1 and sidewall part 2 and a captread part 3 having the belt reinforcement layer 4. In this case, the captread part 3 is divided into the first rubber layer A to contact the road surface and the second rubber layer B to be sandwiched between the first rubber layer A and the belt reinforcement layer 4. It is preferable that these rubber layers A and B and another rubber layer C of a shoulder part 5 and/or sidewall part 2 are selected to satisfy the relationships represented by the expressions, tanδa> tanδb≥tanδc and Eb>Ea>Ec, where tanδa, tanδb and tanδc are respectively a loss tangent of the rubber layers A, B and C, and Ea, Eb and Ec are respectively a Shore hardness of the rubber layers A, B and C. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H0447171-A (JP)
Title: Internal combustion engine control device
Inventor: IWATA TOSHIO
IPC: F02P13/00
Filed: 1990-06-15
Abstract: PURPOSE:To reignite exhausted unburnt gas forcibly so as to prevent the damage of a catalyst by providing a second spark plug at the exhaust part of a combustion chamber, and also a second ignition device for driving the second spark plug by the electric power larger than the driving electric power of the first spark plug in the combustion chamber. CONSTITUTION:A second spark plug 20 provided at an exhaust part 6 is formed to be identical with a first spark plug 3 provided at a combustion chamber 2. An ignition coil 21 formed to be identical with an ignition coil 11 is provided, and the output terminal of a primary coil is connected to the center electrode of the spark plug 20. A second ignition device 23 is further connected to the output terminal of the secondary coil of the ignition coil 21, and the spark plug 20 is driven by the power larger than the driving power of the first spark plug 3. The ignition device 23 is then controlled by an ECU 24 so as to drive the spark plug 20. On the other hand, the detection signal E of a misfire detecting circuit 25 connected to a junction between the spark plug 20 and ignition coil 21 is inputted into the ECU 24. That is, the ECU drives the spark plug 20 by the ignition device 23 at the time of misfire being generated so as to reignite unburnt gas in the exhaust part 6 forcibly.
Patent JP-S6216915-A (JP)
Title: Conveyor controller
Inventor: MIKE HIROO
IPC: B65G43/08
Filed: 1985-07-15
Abstract: PURPOSE:To aim at the promotion of a labor-saving system, by constituting a conveyor so as to be stopped if there is no detection of a succeeding conveyed work within the specified time since that point when the conveyed work has not been detected, in case of a mounting belt conveyor of a self-propelled vehicle for freight carrying into air-craft. CONSTITUTION:In the state that freight 3 is conveyed in consecutive order at a shorter interval than the setting time set to a timer, a belt conveyor 4 is driven continuously. And, at that point that a detecting device consisting of a light projector 5 and a light receiver 6 is no longer detecting the freight 3, counting of the timer is started but if the succeeding freight 3 is detected by these elements 5 and 6 before the elapse of the setting time of the timer, this timer is reset. However, if the freight 3 is not detected by these elements 5 and 6, a controller outputs a conveyor stop command, stopping the conveyor at once. With this constitution, the promotion of a labor-saving system is attainable.
Patent JP-S5980452-A (JP)
Title: Polypropylene composition
Inventor: UIRIAMU II RAISUNAA
IPC: C08L23/12
Filed: 1983-08-25
Abstract: PURPOSE:A polypropylene composition, prepared by adding a specific diarylpentaerythritol diphosphite compound together with a phenolic antioxidant and a sulfur antioxidant to polypropylene, and having improved heat and light resistance. CONSTITUTION:A polypropylene composition prepared by incorporating (A) preferably 0.01-5pts.wt. diarylpentaerythritol diphosphite compound of formula I (R1 is tert-butyl or tert-amyl; R2 is H, methyl, tert-butyl, tert-amyl, phenyl or cyclohexyl; R3 is H, methyl or tert-butyl; R4 is H or methyl, provided that R2, R3 and R4 are not H at the same time), e.g. the compound of formula II, (B) preferably 0.01-5pts.wt. phenolic antioxidant, e.g. 2,6-di-tert-butyl-p-cresol, and (C) preferably 0.01-5pts.wt. sulfur antioxidant, e.g. dilauryl thiodipropionate, with 100pts.wt. polypropylene.
Patent JP-H08328385-A (JP)
Title: Image forming method
Inventor: KATADA MASAICHIRO
IPC: G03G9/08
Filed: 1995-05-31
Abstract: PURPOSE: To provide an image forming method to maintain high picture quality. CONSTITUTION: An image is formed under the following conditions. The average roughness Ra (numerical average roughness) of the surface of a toner carrying body is <1.5μm. The coating amt. of the toner layer per unit area formed on the toner carrying body satisfies w/ρ=(coated toner amount/1cm<2> )/toner density = 0.2 to 0.8 and the moving speed of the carrying body in the developing zone is 1.05-3.0 times as the moving speed of an electrostatic latent image holding body. The polymer component of the toner compsn. has a main peak in the range from 3×10<3> to 3×10<4> mol.wt. and a subpeak in the range from 1×10<5> to 3×10<6> mol.wt. in a GPC(gel permeation chromatography) chromatogram of a THF(tetrahydro furan) soluble component. The acid value (AVL) of the low mol.wt. polymer and the acid value (AVH) of the high mol.wt. polymer satisfy AVL>AVH.