baber/WOPTO huggingface dataset:
Patent JP-H08183095-A (JP)
Title: Pipe-lining ball pig
Inventor: TAKAHASHI MIKIYOSHI
IPC: B29C63/26
Filed: 1994-12-28
Abstract: PURPOSE: To obtain a pipe-lining ball pig that can smoothly run surely along an irregular shape of an inner surface of a pipe to correctly and surely form a film of a lining resin with a uniform thickness. CONSTITUTION: When a ball pig 1 is inserted in a pipe to be lined 2, an elastic sheathing part 1b is slightly collapsed to be elastically pressed against the inner surface of the pipe 2. By applying a pressure into the pipe from the rear side in the forward direction of the ball pig, the ball pig 1 is moved in the pipe 2. A part of a loaded lining resin 3 is applied to the inner surface of the pipe 2. A lining film 3a is formed on the inner surface of the pipe 2 after the passage of the ball pig 1. If the ball pig 1 runs on the irregular inner surface of the pipe 2. such as a projected part in a welded part and an elbow, the ball pig, esp the elastic sheathing part 1b, is deformed along the irregular surface shape to pass through in contact with the inner surface of the pipe 2 at a fixed pressing force. Thus, the lining film 3a can be formed with a fixed thickness.
Patent JP-H04204753-A (JP)
Title: Electrostatic charge image developing carrier
Inventor: URANO TOSHIAKI
IPC: G03G9/113
Filed: 1990-11-30
Abstract: PURPOSE:To obtain a carrier excellent in heat resistance, durability, electrifying stability and environmental stability which prevents blocking of toner or production of spent toner by specifying the weight reduction rate of the coating resin by strong heating to <=7wt.%. CONSTITUTION:The weight reduction rate of the coating resin by strong heating is specified to <=7wt.%. In this case, the proportion H (%) of the reduction rate of the resin heated in the coating resin is obtd. by measuring the amts. of resin before heating (Rc) and resin after heating (Rc') and calculating by the formula I. Thereby, the obtd. resin-coated carrier for electrostatic charge image developing is excellent in heat resistance, storage property and electrifying stability for a long time without causing blocking of the carrier and the carrier prevents toner fogging and production of spent toner.
Patent JP-2000159284-A (JP)
Title: Storing case for magnetic tape cassette
Inventor: OMORI SHOZO
IPC: B65D85/57
Filed: 1998-11-27
Abstract: PROBLEM TO BE SOLVED: To provide a storing case for a magnetic tape in which its poor closing can be prevented. SOLUTION: There is provided a storing case 1 for a magnetic tape cassette comprised of a storing part 3 for storing a magnetic tape cassette 81, a lid 5 covering the storing part 3 and a hinge part 7 for connecting the storing part 3 and the lid 5 in such a way that the lid can be opened or closed. The storing part 3 and the lid 5 have flat plates 11 and 21 and sidewalls 13 and 23 arranged at the outer circumferences of the flat plates 11 and 21. In the case that the storing part 3 and the lid 5 are closed, the sidewall 23 of the lid 5 covers outside the sidewall 13 of the storing part 3 so as to cause an engaging part 23a formed inside the sidewall 23 of the lid 5 to be engaged with an engaged part 13a formed outside the sidewall 13 of the storing part 3.  A recess 26b having a height more than the height of the sidewall 13 arranged at the hinge part 7 of the lid 5 is formed inside the end part arranged at the side wall 23 of the hinge part 7 of the lid 5.
Patent JP-H04206054-A (JP)
Title: Magneto-optical recording medium
Inventor: SADABETTO HIROYASU
IPC: G11B11/10
Filed: 1990-11-30
Abstract: PURPOSE:To improve recording density by controlling the presence or absence of the emission of light and the direction of an external magnetic field, and recording the data signal of multistage levels into one pit. CONSTITUTION:A substrate 1, a dielectric layer 2 formed of transparent dielectric having the high refractive index, a magneto-optical recording layer 3, an enhancement layer 4 and a reflecting layer 5 are laminated in this sequence, and the medium is constituted. The magneto-optical recording layer 3 has the axis of easy magnetization which is vertical to the surface of the layer. The direction of the magnetization is changed by the heating caused by the emission of light and a magnetic field. The enhancement layer 4 has the characteristic so that the refractive index for emitted reading light is changed based on the heating condition by the emission of the light and has a function for enhancing a Kerr rotating angle. Therefore, when the intensity of a laser beam (a) is controlled when the laser beam is emitted, four kinds of pits whose patterns are different based on the combinations of the directions of magnetization and the refractive indexes can be formed. Thus, multivalued data, e.g. four-value data, can be recorded into one pit, and the recording density can be enhanced.
Patent JP-H05152914-A (JP)
Title: Demodulation circuit
Inventor: IZUKAWA KAZUHIRO
IPC: H03K7/04
Filed: 1991-11-28
Abstract: PURPOSE:To attain accurate demodulation even on the occurrence of an overflow by storing it when an overflow takes place while a binary signal is added or subtracted by a counter and stopping a counting operation. CONSTITUTION:A digital differentiation detection circuit composed of an exclusive OR circuit 6, AND circuits 7, 11, 12, a D flip-flop circuit 8, and NOT circuits 9, 10 detects a level change in a pulse position modulation signal. A counted value is added or subtracted by an up-down counter 16 based on the output of the detection circuit. Based on the output of the detection circuit, the counted value is incremented or decremented by an up-down counter 16 and a D flip-flop circuit 22 stores the occurrence of overflow from the counter 16. Thus, when the binary signal is incremented or decremented by the counter 16 and an overflow takes place, the fact is stored in the FF circuit 22 and the counting of the counter 16 is stopped, then accurate demodulation is implemented even on the occurrence of overflow.
Patent JP-H11160507-A (JP)
Title: Diffuse reflection plate and its manufacture, and reflection type display device
Inventor: YOU EIHO
IPC: G02B5/08
Filed: 1997-11-21
Abstract: PROBLEM TO BE SOLVED: To improve the use efficiency of illumination light by improving the surface unevenness structure of the diffusion reflection plate built in the reflection type display device. SOLUTION: The diffuse reflection plate consists of a substrate 1 whose top-bottom direction and right-left direction perpendicular to it are prescribed, a set of projection parts 6 which are arranged thereupon and have slanting surfaces individually, and a light reflecting film 5 which covers the slanting surfaces. The slanting surfaces which are positioned in the top-bottom direction have larger area than the slanting surfaces which are positioned in the right-left direction. To manufacture this diffuse reflection plate, a 1st resin film 2 is formed on the substrate 1 first in conformity with striped patterns which are arrayed vertically at specific intervals and extend to the right and left. Then a 2nd resin film 3 is formed on the substrate 1 according to dot patterns which are arrayed overlapping with steps 4 of the striped patterns.  The substrate 1 is heated to thermally deform the 2nd resin film 3 into the projection parts 6 having the slanting surfaces regarding the steps 4. Lastly, metal is deposited on the 2nd resin film 3 to form a light reflecting film 5. Consequently, the slanting surfaces of the individual projection parts 6 can be made anisotropy between the top-bottom surface and right-left direction.
Patent JP-H04206447-A (JP)
Title: Organic electrolyte battery
Inventor: MURAKAMI TETSUYA
IPC: H01M2/08
Filed: 1990-11-30
Abstract: PURPOSE:To improve liquid leak preventing property by using a plastic insulation packing made of polypropylene bridged in three dimensions with silane. CONSTITUTION:A metallic opening seal plate 5 in its peripheral portion provided with a thermoplastic resin insulation packing 6 made of polypropylene three- dimensionally bridged with silane to be used in organic electrolyte battery is fit in the opening 1a of a case 1. Using a metallic die, the upper opening 1a of the case 1 is bent inward to seal the opening 1a of the case 1. The polypropylene three-dimensionally bridged with silane which is the material of the thermoplastic resin packing used for the battery is thermally more stable than polypropylene not bridged and causes less volumetric shrinkage due to thermal stresses under the conditions of high temperature atmosphere and rapid change in temperatures after the assembly of the battery. This improves the sealing tightness of the clinched portion between the plastic insulation plate 6, opening seal plate 5 and the case 1.
Patent JP-H06189162-A (JP)
Title: Vertical contour emphasizing method
Inventor: SUZUKI SUSUMU
IPC: H04N5/208
Filed: 1992-12-18
Abstract: PURPOSE:To obtain desired picture quality corresponding to a source or a pattern to be displayed by calculating vertical contour emphasis signal by obtaining an optimum contour emphasis coefficient while referring to a memory, which is made into a look-up table(LUT) for storing contour emphasis coefficients, corresponding to the brightness change of a contour. CONSTITUTION:The absolute value 8 showing the degree of change in an input brightness signal is calculated by an absolute value circuit 1, and the contour emphasis coefficients stored as the LUT are read out. These coefficients are multiplied to a first vertical contour signal 12 formed from 1H and 2H delayed brightness signals, to which the coefficients are multiplied in a multiplier 3, in a multiplier 6 and a second contour emphasis signal 9 is generated. Thus, the desired picture quality can be obtained corresponding to the source or the pattern to be displayed by using the optimum coefficient corresponding to the state or pattern of this contour.
Patent JP-H09157993-A (JP)
Title: Three-dimensional woven fabric having tapered part
Inventor: IDO TAIJI
IPC: D03D25/00
Filed: 1995-12-01
Abstract: PROBLEM TO BE SOLVED: To obtain a three-dimensional woven fabric tapered in thickness in the weaving direction and having a dense and uniform woven tissue easy in production and not causing the waste of the material. SOLUTION: In the tapered part 32 of the three-dimensional woven fabric woven from warps 1Y-13Y collected into plural groups, wefts 14X-18X divided into plural layers, and entangling yarns 26Z, 27Z for binding the wefts of outer layer, the plural groups of the collected warps are successively divided for each group. The thickness of the tapered part 32 is tapered in the weaving direction. New wefts are inserted between the divided warps to increase the number of layers of the woven fabric from a thin part 31 to a thick part 32. The thickness of the woven fabric is increased in the tapered state. Since the number of layers increases with the increase of the thickness, it can be prevented that the tissue is loosened on the thick side.
Patent JP-H11175945-A (JP)
Title: Magnetic storage device and intrasurface magnetic recording medium
Inventor: TANAHASHI KIWAMU
IPC: G11B5/64
Filed: 1997-12-09
Abstract: PROBLEM TO BE SOLVED: To realize low medium noise and high output resolution by constituting of the substrate, which is located between a magnetic layer and a base plate, with a first substrate on the base plate side and a second substrate on the magnetic layer side, constructing the first substrate with a two element alloy having the body centered three-dimensional structure with a complete solid solution equilibrium diagram and constructing the second substrate with a two element alloy having the body centered three-dimensional structure having a non-complete solid solution equilibrium diagram. SOLUTION: It is desired that in the first substrate, Cr is selected as a main component and the element selected from V, Mo and W is included. In the second substrate, Cr is selected as a main component and the element selected from Ti, Ta, Nb and Zr is included. To be more specific, CoCrNi, CoCrTa and CoCrNiPt alloys are suitable for the first substrate and CrTi, CrTa and CrNb alloys are suitable for the second substrate. In order to maintain a good crystal combination and to prevent the increase in the particle diameters, it is desirable that the film thickness of the first substrate is set to 3 to 10 nm and the film thickness of the second substrate is made >=15 nm.
Patent JP-H09177796-A (JP)
Title: Roller bearing
Inventor: TANAKA HIROMASA
IPC: F16C33/58
Filed: 1995-12-26
Abstract: PROBLEM TO BE SOLVED: To surely prevent the vibration of a bearing even when a bearing is rotated under the load in which an end face of a roller is brought into contact with an inner side of a flange part by preventing the phenomenon in which the inner side of the flange part projected in the prescribed direction from each side part of a raceway groove of a roller bearing is stuck with the end face of the roller. SOLUTION: A hard carbon film is formed on inner sides 3a, 4a of flange parts 3, 4 projected in the axial direction from each side part of a raceway groove 2 through the ion plating treatment on the surface of a steel bearing ring 1 (inner ring). The hard carbon film reduces the surface roughness of an end face of a roller 5 and the roller bearing achieves the 'breaking-in' from the beginning of the operation to prevent the vibration due to the sticking between the end face of the roller 5 and the inner sides 3a, 4a.
Patent JP-H07156819-A (JP)
Title: Method for controlling front and rear wheel steering device
Inventor: SERIZAWA MITSUYA
IPC: B62D7/15
Filed: 1993-12-01
Abstract: PURPOSE:To improve the responsiveness and maneuverability by realizing the feedback control of the steering angle of front wheels based on the deviation between the target yaw rate value corresponding to the vehicle speed and the steering angle and the actual yaw rate value, and realizing the feedforward control of the steering angle of rear wheels so that the slip angle may be zero. CONSTITUTION:A computer unit 20 controls motors 8, 11 of front wheels and rear wheels steering devices FS, RS to turn the front wheels 5 and the rear wheels 12 respectively based on the respective detected signals from steering angle sensors 15-17 of the front wheels 5, the rear wheels 12, and a steering wheel 1, a vehicle speed sensor 18, and a yaw rate sensor 19. The computer unit 20 sets the target yaw rate value corresponding to the vehicle speed and the steering angle of the steering wheel, and at the same time, the feedback control of the steering angle of the front wheels is realized based on the deviation between this target yaw rate value and the actual yaw rate value. The feedforward control of the steering angle of the rear wheels is realized so that the slip angle may be zero.
Patent JP-2000164614-A (JP)
Title: Resin-sealing device for semiconductor device and its resin-sealing method
Inventor: NISHIKAWA KENJI
IPC: B29C45/02
Filed: 1998-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a resin-sealing device of a semiconductor device, in which resin fluidity is stabilized and voids or the like are not created. SOLUTION: This resin-sealing device is provided with metal molds 10, 11 having cavities 12 for sealing a semiconductor element 20 with resin, a pot 14 which is fixed on a part of the metal molds 10, 11 and used for fusing synthetic resin, a plunger 17 which is slidably arranged in the pot 14, and a protruding pin 18 which is so arranged in the plunger 17 that the tip can be protruded and retreated from the head part. Thereby a fused state of resin is stabilized, and voids and cracks or bonding wire flow can be reduced. Waste resin generated in an escape part is made unnecessary.
Patent JP-2001161090-A (JP)
Title: Position sensor-less control method for synchronous motor
Inventor: SAKAMOTO KIYOSHI
IPC: H02P6/16
Filed: 1999-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a control method capable of stable rotation of a synchronous motor in synchronization with output frequency, even in case that a large phase error exists between an actual rotational axis and a control rotational axis. SOLUTION: A phase error computing part 61 determines a phase difference between motor current and the actual rotational axis as a first phase difference based on the magnitudes of the motor current and motor voltage, a phase difference between the motor current and the motor voltage, and motor electric constants. A phase difference between the other motor current and virtual rotational axis is obtained as a second phase difference. With a difference between the first and second phase differences as a phase error Δθ, an estimated position is corrected so that Δθ may become zero. As a result, the phase error Δθis obtained from values independent of the position of the control rotational axis, thus it is possible to attain the excellent position sensor-less control system of the synchronous motor even in case that a large phase error exists.
Patent JP-H11158373-A (JP)
Title: Electroconductive composition and planar heating element using the same
Inventor: NAKAYAMA KOJI
IPC: H05B3/14
Filed: 1997-11-25
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition that can provide planar heating elements causing no deterioration in temperature controllability even when these elements are used at elevated temperatures for a long period of time by formulating an electroconductive substance and a phenolic hydroxyl group- bearing aromatic polyamide resin thereto. SOLUTION: This electroconductive composition is composed mainly of (A) an electroconductive substance (suitably carbon black and the like) and (B) an aromatic polyamide resin containing a component bearing a phenolic hydroxyl group. in a preferred embodiment, the component B contains an aromatic diamine bearing an alkyl in the ortho-position of the terminal aminoaryl and a dicarboxylic acid bearing a phenolic hydroxyl group and is prepared by randomly bonding 5-100 mol.% of the units of formula I (Ar is a divalent aromatic group; R and R<1> are each H, a 1-4C alkyl wherein they are not H simultaneously; R<2> is a 1-3C alkylene; n is 1, 2) to 0-95 mol.% of the units of formula II. The aromatic diamine is typically bis(4-amino-3-methylphenyl)methane.
Patent JP-H04206999-A (JP)
Title: Wave absorber
Inventor: MURASE YOSHITAKA
IPC: H05K9/00
Filed: 1990-11-30
Abstract: PURPOSE:To make absorption possible even in directions other than vertical or horizontal direction by uniformly placing the 1st wave absorbers, which have a conical shape and can handle insertion from selected electric field directions on the base section. CONSTITUTION:A wave absorber 1b has a conical shape and by being placed in a uniform arrangement on a base section 1a, the wave absorber 1b is always in a perpendicular direction to an incident wave regardless of the direction of the incident electric field. Further, the height of the above-mentioned conical, wave absorber 1b differs depending on the frequency but is kept close to 1/4lambda. In this way, since the shape of the wave absorber 1 which consists of the base section 1a and the wave absorber 1b is conical and these units are uniformly placed on the base section, electric waves can be absorbed in any incident direction of the electric field and it is possible to reduce unnecessary reflections on the wave absorber.
Patent JP-H07155001-A (JP)
Title: Bottom plow device
Inventor: USAMI MICHIHARU
IPC: A01B15/08
Filed: 1993-12-03
Abstract: PURPOSE:To reduce the draft by preventing the landside abrasion caused by plowing and reducing the adhesion of gravel soil to the landside. CONSTITUTION:The bottom plow 1 comprises shear 2, moldboards 3, core 4 which is fixed to the moldboard along its front edge and supports the back side of the moldboard and landside 5 receiving the plowing resistance where an extender is formed on the opposite side of the core as it extends in the opposite direction to that the core is turning, as the turning of the extender is gradually increased.
Patent JP-H10176951-A (JP)
Title: Infrared image pickup apparatus
Inventor: MIYATAKE JIRO
IPC: G01J1/04
Filed: 1996-12-19
Abstract: PROBLEM TO BE SOLVED: To suppress a rise in ambient temperature of a Dewar by separately placing the Dewar in an optical detection part and compressor in a cooling control part. SOLUTION: A front cover 13 on a side of an optical detection part 20 is fitted to a Dewar holder 4 for holding a Dewar 2, while an opening is closed by a plate 14 to make the optical detection part 20 in a sealed structure and also an O-ring 15 prevents raindrops from entering. A rear cover 18 engaged with the plate 14 is equipped with a fan and a bracket, while a base 19 similarly engaged with the plate 14 exhausts an atmosphere taken in by the fan from an exhaust port. In addition, a heat conductive block 9 fitted with a cold finger 8 is also attached to the plate 14. Therefore, since the Dewar 2 is placed in the sealed-structured optical detection part 20 and a compressor 6 is placed in an open-structured cooling control part 21 respectively, the Dewar 2 can suppress a rise in ambient temperature without being influenced from heat discharge from the compressor 6.  Thus an infrared element 3 incorporated in the Dewar 2 can easily keep an extremely low temperature state.
Patent JP-H08185465-A (JP)
Title: Code reader
Inventor: ATSUTA HISANORI
IPC: G06K7/10
Filed: 1994-12-30
Abstract: PURPOSE: To provide a code reader capable of performing the read operation of a code at a desired angle without being accompanied by complicated operations. CONSTITUTION: A movable body 3 is provided on the tip part of a reader main body 2 and the movable body 3 is constituted of a frame member 31 and a tip member 32. The frame member 31 is rectangular and is provided with frame parts 33 at four sides. For the respective frame parts 33, the outer side face 33a is the same curvature as a first guide surface 25 and the inner side face 33b is the same curvature as a second guide surface 29. Then, the insertion part 27 of a holder 26 is force-fitted inside the cylindrical part 24 of a tip cap 7 to a position where the outer side face 33a of the frame part 33 is brought into contact with the first guide surface 25 and is fixed at the position. Thus, a clearance part 37 corresponding to the thickness of the frame part 33 is formed between both guide surfaces 25 and 29 and the frame member 31 is rotatably held inside the clearance part 37.
Patent JP-H06185007-A (JP)
Title: Continuous concrete pavement
Inventor: YAGISHITA HAJIME
IPC: E01C11/20
Filed: 1992-11-26
Abstract: PURPOSE:To embody a long and continuous pavement by providing prestress widthwise to the center position of a paving slab arranging a continuous reinforcing bar at specific intervals, and inducing cracks widthwise at specific intervals. CONSTITUTION:Sheaths 4 are buried widthwise to the center position of thickness of a concrete paving slab 1 burying a continuous reinforcing bar 2 and a horizontal reinforcement 3 therein at pitch (a) intervals, and PC steel materials 5 are inserted into them. The ends of the PC steel materials 5 are fixed to the paving slab 1, and prestress is provided widthwise of the paving slab. Belt- shaped crack inducing plates 7 having approximately 10mm in height are fixed to the sheaths 4. According to the constitution, craks occur widthwise in every certain intervals (a), so that cracks are hard to occur lengthwise.