baber/WOPTO huggingface dataset:
Patent JP-2002043944-A (JP)
Title: Digital/analog converter and liquid crystal driver using the same
Inventor: NAKAO TOMOAKI
IPC: H03M1/74
Filed: 2000-07-25
Abstract: PROBLEM TO BE SOLVED: To provide a down-sized digital/analog converter and a liquid crystal driver using it that can suppress a rapid increase in number of circuit components and the manufacture cost even when the number of voltages required for multi-gradation of display increases. SOLUTION: The digital/analog converter 10 that converts an N-bit digital signal into 2N sets of analog signals is provided with a reference voltage generating circuit 18 that generates a reference voltage in 2A+1 sets of voltage levels, a reference voltage selection circuit 16a that selects two reference voltages whose voltage levels are adjacent to each other according to A-bits of the digital signal, a generating voltage selection circuit 16b that selects one interpolation voltage according to (N-A)-bits of the digital signal from preset 2N-A-1 sets of interpolation voltages between the two reference voltage levels, and a voltage follower circuit 17 that generates the interpolation voltage on the basis of the two reference voltages through linear interpolation.
Patent JP-2002043295-A (JP)
Title: Method for manufacturing semiconductor device
Inventor: MATSUOKA AKIO
IPC: H01L21/3065
Filed: 2000-07-27
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a semiconductor device obtained by tapering only the neighborhood of a contact opening part and controlling the opening size of the bottom of the contact opening part to be narrow. SOLUTION: With respect to multi-layered films consisting of the first silicon oxide film 2, the first polysilicon 3, the first silicon nitride film 4, the second silicon oxide film 5 and the second silicon nitride film 6, only the film 6 is tapered and the other multi-layered films are not tapered to control the opening size to be narrow. Since only the film 6 is tapered, generation of whiskers in the second polysilicon 10a is suppressed when the second polysilicon 10a in the next process grows.
Patent JP-2002043201-A (JP)
Title: Method of manufacturing semiconductor device and semiconductor device
Inventor: OKADA MASAKAZU
IPC: H01L21/027
Filed: 2000-07-28
Abstract: PROBLEM TO BE SOLVED: To improve the alignment accuracy of alignment marks by securing the level differences of the marks at the time of manufacturing a semiconductor device. SOLUTION: A tungsten layer is formed on an interlayer insulating film containing openings for alignment marks and polished by the CMP method. At the time of polishing the tungsten layer, a level difference for alignment is secured by making the initial thickness of the insulating film larger than the sum of the minimum distinguishable level difference for alignment and stock removal. In addition, a structure is constructed to remove the gate electrode existing under a contact alignment mark. Alternatively, another structure is constructed to remove the aluminum electrode existing immediately under the alignment mark of a through hole.
Patent JP-2002051405-A (JP)
Title: Hybrid electric vehicle
Inventor: IKEZOE MICHINORI
IPC: B60L50/16
Filed: 2000-07-31
Abstract: PROBLEM TO BE SOLVED: To prolong the motor drivable time of a battery by increasing the substantial capacity of the battery, while the deterioration of the battery is reduced as much as possible and, in addition, to effectively charge the battery by utilizing regenerative braking. SOLUTION: A hybrid electric vehicle is provided with a controller 2, which controls the charging and discharging of a battery 1, so that the remaining capacity of the battery 1 falls within a set range by detecting the remaining capacity of the battery 1. The controller 2 is connected with a 3D gyro sensor 5, which three-dimensionally detects the acceleration of the vehicle and changes the set range of the remaining capacity, that allows the charging and discharge of the battery 1 by means of a signals inputted from the sensor 5.
Patent JP-2002047016-A (JP)
Title: Method of manufacturing optical element and its forming device
Inventor: INOUE KENJI
IPC: B29C43/36
Filed: 2000-07-31
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical element which never generates deformation biased on the forming face of press sliding side, never generates heterogeneity of form, and never generates burrs and residue of distortion, and its forming device. SOLUTION: The forming mold 100 begins pressurizing from top and bottom by lifting the lower head 7 and lowering the upper head 6. When the lower head 7 is lifted, a point inside the link bar 14 is also lifted through a L-shape support and a revolving link 15a, whereby a drum mold 3 is raised when the lifting lever comes into contact with a channel part 3a of the drum mold 3. All the while, heating the heads 6, 7 is continued, the optical element softens, and when both the upper mold 1 and the lower mold 2 begin sliding, increasing pressure makes the upper mold 1 and the lower mold 2 go to the end and the optical element 4 is formed into the shape of the optical element 5. While press forming of this upper mold 1 and the lower mold 2, the drum mold 3 is also moved by the link bar 14, consequently both the upper mold 1 and the lower mold 2 slide against the drum mold 3.
Patent JP-2002048833-A (JP)
Title: Circuit board inspecting device
Inventor: BAN KAZUHIRO
IPC: G01R31/02
Filed: 2000-08-02
Abstract: PROBLEM TO BE SOLVED: To improve the reliability of circuit board inspections based on a voltage measured through the use of contact probes. SOLUTION: The circuit board inspecting device 1 is provided with first and second contact probes 4a and 4b in which contact-side terminal parts are arranged close and next to each other in a non-contact state, third and fourth contact probes 4c and 4d in which contact-side terminal parts are arranged close and next to each other in a non-contact state, a measuring part 5 to measure the voltage between the second and third contact probes with a constant current for measurement supplied for a conductor pattern via the first and fourth contact probes, and a control part 6 to execute electric inspections on the conductor pattern on the basis of the results of measurement of the measuring part 5.  The measuring part 5 measures the voltage between the contact probes 4a and 4b with a constant current supplied between the contact probes 4a and 4b arranged next to each other, and the control part 6 performs insulation inspections on both contact probes on the basis of the voltage measured by the measuring part 5.
Patent JP-2002049438-A (JP)
Title: Semiconductor device
Inventor: SUZUKI KAZUHISA
IPC: H03K5/13
Filed: 2000-08-03
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device capable of reducing clock skew in an LSI by reducing the jitter of an PLL circuit single body. SOLUTION: A clock phase matching circuit using a PLL circuit constituting a logical LSI by a CMOS gate array is composed of a PLL circuit 1 capable of self-oscillation by performing feedback by the inside loop, a DLL circuit 2 for matching the phase of the clocks signal of the output part of the PLL circuit 1 with the phase of the clock signal of a clock tree terminal part, and a clock tree 3 for distributing inside clock signals generated by the DLL circuit 2. Then, the PLL circuit 1 is allowed to oscillate by the inside loop so that it is possible to reduce any clock skew in the LSI by reducing the jitter of the PLL circuit 1 single body, and that it is possible to reduce any inter-LSI clock skew by using the DLL circuit 2.
Patent JP-2002048389-A (JP)
Title: Control system
Inventor: TAKAGI HIDEHIKO
IPC: H04Q9/00
Filed: 2000-08-03
Abstract: PROBLEM TO BE SOLVED: To provide a control system capable of alleviating troublesomeness of resetting. SOLUTION: The control system comprises a hot water supply unit 1 operating by a current supply, a plurality of heating units 2a to 2c having the supply unit 1, and a plurality of remote controllers 4a to 4c for starting or stopping the current supply to the unit 1 and operations of the units 2a to 2c by switching ON/OFF states and corresponding to the units 2a to 2c. The system further comprises microcomputers (remote control means) 20a to 20b receiving an error occurrence signal from a controller 5 when the operation of the unit 1 is stopped irrespective of the ON state of any of the plurality of the controllers 4a to 4c to switch all the remote controllers of the ON state to OFF states.
Patent JP-2002046570-A (JP)
Title: Collision mode determination method
Inventor: TAKASUKA AYAFUMI
IPC: B60R21/16
Filed: 2000-08-01
Abstract: PROBLEM TO BE SOLVED: To correctly determine that a collision is either a fully lapped collision or an offset collision and provide setting values different from each other. SOLUTION: An airbag control system controls an air bag to be developed or not to be developed at a time of crash of a vehicle. The airbag control system has first and second sensors disposed at different positions from each other at a front portion of the vehicle. Calculated values VL(TL), VR(TL), VL(TR), VR(TR) at a time points (TL, TR) when calculated values (VL(n), VR(n)) of outputs of the first and second sensors exceed predetermined threshold values, respectively, are found. The equation |VL(TL)-VR(TL)|-|VL(TR)-VR(TR)|=ΔVT1 is used to find ΔVT1 from the above calculated values and in the case of the ΔVT1 being smaller than the predetermined threshold value, it is determined that the crash is the fully lapped collision.
Patent JP-2002055495-A (JP)
Title: Electrophotographic developer
Inventor: YAMAGUCHI KIMITOSHI
IPC: G03G9/113
Filed: 2000-08-08
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic developer with which high quality images with reduced in homogeneity (roughness) in a halftone part can be obtained even when a toner having high coloring power is used. SOLUTION: The present developer is a two-component developer consisting of carrier and toner to develop an electrostatic latent image on a photoreceptor. The carrier is prepared by coating the following core material with resin. The core material has 25 to 45 μm weight average particle size, contains >=70 wt.% particles smaller than 44 μm particle size and particles <=7 wt.% smaller than 22 μm particle size, and has the ratio of the weight average particle size Dv to the number average particle size Dp satisfying 1<=(Dv/Dp)<=1.30. The toner has high coloring power.
Patent JP-2002058234-A (JP)
Title: Failure detecting method for voltage driving semiconductor device
Inventor: MARUYAMA KOJI
IPC: H02H7/12
Filed: 2000-08-09
Abstract: PROBLEM TO BE SOLVED: To detect failure in any voltage driving semiconductor device for respective arms at a high speed, in forming a power conversion circuit by serial- connecting three or more voltage driving semiconductor devices to the respective arms. SOLUTION: When the respective arms comprise serial-connected three voltage driving semiconductor devices, an overvoltage discriminating circuit OV monitors whether or not applied voltage is overvoltage during the turn-off operation of the serial-connected voltage driving semiconductor devices. A device failure discriminating circuit CV discriminates the device as failed if it detects the two voltage driving semiconductor devices are under an overvoltage condition.
Patent JP-2002062221-A (JP)
Title: Measuring device and measuring method for refractive index distribution
Inventor: SHIMIZU YOSHIMASA
IPC: G01M11/02
Filed: 2000-08-16
Abstract: PROBLEM TO BE SOLVED: To provide a measuring device and a measuring method for a refractive index distribution capable of accurately measuring the refractive index distribution of a preform for an optical fiber. SOLUTION: This measuring device for the refractive index distribution transmits light through the preform and measures the refractive index distribution of the inside of the preform from an angle of refraction of light, and comprises a light irradiation part 1 having a mechanism for correcting the intensity distribution of light to be transmitted; a screen 9 projecting an image of the corrected light radiated to the preform 8 and transmitted through it; a line sensor camera 11 taking in the intensity distribution of light from the image of light projected on the screen 9 and outputting the intensity distribution data of the light; and a data processing means 12 determining the position on the screen of the light after refraction.
Patent JP-2002064974-A (JP)
Title: Drive control method of power supply circuit and power supply circuit
Inventor: OTANI MITSUAKI
IPC: H02M3/155
Filed: 2000-08-17
Abstract: PROBLEM TO BE SOLVED: To provide a drive control method of a power supply circuit and a power supply circuit which can reduce power loss and also increase a power supply capable time when a battery is used as an input power supply. SOLUTION: At least two FET's, an FET 311 with a high switching speed and an FET 312 with a low switching resistance, are used and active terminals (drain terminals and source terminals) of the FET's 311 and 312 are connected in parallel to each other to switch a conductive circuit between an electrically continuity state and an electrically non-continuity state by using the FET's 311 and 312 in parallel. When the conductive circuit is switched from the non- continuity state to the continuity state, a switching control circuit 313 turns on the FET 311 with a high switching speed first and, when the FET 311 is saturated, turns on the 2nd FET 312.  In the same way, when the conductive circuit is switched from the continuity state to the non-continuity state, the switching control circuit 313 turns off the FET 312 and then turns off the FET 311 at a voltage close to the saturation voltage of the FET 311.
Patent JP-2002037579-A (JP)
Title: Safety equipment for passenger carrier
Inventor: KANEKO YOSHIAKI
IPC: B66B29/04
Filed: 2000-07-17
Abstract: PROBLEM TO BE SOLVED: To provide safety equipment for a passenger carrier, arranged between a moving handrail for passengers being moved to the direction of move-up by the passenger carrier and a fixture located in proximity to the moving handrail to form a wedged space, facilitating positioning and assuring high fixing strength. SOLUTION: In the wedged space Q formed by the fixture 4 such as an exterior bottom face F located in proximity to the moving handrail 3 of an escalator 1 as the passenger carrier, the safety equipment 8 is arranged which consists of a first support 7 to be fixed to the end of the fixture 4, a second support 6 to be engagingly fixed to the first support 7 in a movable manner and an approximately triangular plate 5 to be fixed to the first support 6.
Patent JP-2002062399-A (JP)
Title: Electron beam irradiating unit
Inventor: SHIMAOKA YOSHIHARU
IPC: G21K5/04
Filed: 2000-08-22
Abstract: PROBLEM TO BE SOLVED: To simplify a potential-fixing structure of an electron source supporter, while keeping uniformity of the distribution of electron beam amount in the long direction of filaments to be at the same level as that of the conventional examples. SOLUTION: This electron beam irradiating unit has a structure in which the filaments 6 are connected electrically in parallel with each other between two power feeding conductors 10a and 10b, and they are supported from the metal electron source supporter 16 via an insulator 14. Additionally, two resistors 42a and 42b, whose resistance values are equal or approximately equal, are respectively connected between the two power feeding conductors 10a and 10b and the electron source supporter 16.
Patent JP-2002059016-A (JP)
Title: Vertical mill
Inventor: NAKAMURA MASARU
IPC: B02C15/04
Filed: 2000-08-24
Abstract: PROBLEM TO BE SOLVED: To provide a vertical mill capable of preventing the penetration of dust into the space in the periphery of a bearing to enable continuous operation over a longer period of time. SOLUTION: The vertical mill is provided with a seal mechanism for allowing compressed air to flow toward the space in the mill through a labyrinthine air passage formed by an annular member 101 attached on the side of a roller and an annular member 102 attached on the side of a fixed shaft.
Patent JP-2002067028-A (JP)
Title: Method and device for manufacture of thermosetting resin molding material
Inventor: HASHIMOTO OSAMU
IPC: C08J3/12
Filed: 2000-08-24
Abstract: PROBLEM TO BE SOLVED: To provide a thermosetting resin molding material wherein a fine powder is less generated. SOLUTION: In a method wherein the thermosetting resin molding material is granulated, the molding material under a molten state is drawn into a prescribed thickness by a drawing roll. Then, the molding material is drawn together with a screen or a mesh-form sheet, and a grid-shape uneven sheet molding material is formed. Then, the grid-shape uneven sheet molding material is pulverized. Thus, the thermosetting resin molding material is manufactured by the manufacturing method and the device which is used for the method.
Patent JP-2002061693-A (JP)
Title: Shock absorbing mechanism mainly composed of tensile coil spring
Inventor: TANAKA SHINSAKU
IPC: F16F7/00
Filed: 2000-08-24
Abstract: PROBLEM TO BE SOLVED: To provide a shock absorbing mechanism concurrently having functions of a spring and a damper. SOLUTION: An elastic unit 2.31 is stored in a compressed condition in an inner side of a tensile coil spring 2, the elastic unit is operated so as to change its swollen amount from between wire rods of the spring by a follow up motion to its extending/contracting action and so as to damp the extending/contracting action of the tensile coil spring by resistance of deformation of the elastic unit.
Patent JP-2002076072-A (JP)
Title: Test stage and probing device
Inventor: UMETSU YOSHINORI
IPC: G01R31/28
Filed: 2000-08-24
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive, low deflection test stage and a probing device. SOLUTION: In test stage 100 in which a chuck 20 loading a specimen 1 to be tested can be moved freely along the z-axis direction, a supporting means of chuck 20 is constituted of three or more ball screws 42 comprising screw axes 43 supported to rotate freely so that the screw axes are in parallel to the z-axis direction of base board 45, and ball nuts 44 which move along the axes of screw threads with rotation of the screw axes, being practically unitized with chuck 20. Each screw axes 43 is rotated synchronously by timing pulley 46. Thereby, the deflection of loaded surface 20a of the chuck is dissolved, and the structure of the test stage is simplified and lightened.
Patent JP-2006132322-A (JP)
Title: Easy and complete combustion auxiliary system
Inventor: TACHIBANA MASANOBU
IPC: F02M27/04
Filed: 2000-07-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide an easy and complete combustion auxiliary system of an internal combustion engine capable of removing the harmful exhaust gases from the internal combustion engine such as diesel engines and increasing a combustion efficiency.  <P>SOLUTION: In this combustion auxiliary system of the internal combustion engine, the cluster size of a fuel is fined through a means 2 for fining the cluster size of the fuel for the internal combustion engine 1, and in this state, the fuel is led into the internal combustion engine 1.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2002076039-A (JP)
Title: Head assembly of disc device and manufacturing method of semiconductor device used for it
Inventor: KIRA HIDEHIKO
IPC: G11B21/21
Filed: 2000-08-30
Abstract: PROBLEM TO BE SOLVED: To provide a resin of uniform thickness over the entire surface of an electronic component with no part in which the resin is not applied, with less manufacturing man-hours. SOLUTION: A semiconductor device mounted on a lead frame is set in a die, which is first-molded with a resin containing a filler, and then it is set in another die, which is second-molded with a resin containing no filler for preventing generation of dust.
Patent JP-2001046491-A (JP)
Title: Bioactive complex implant material
Inventor: KOMATSUDANI SHUNSUKE
IPC: A61L27/00
Filed: 2000-08-30
Abstract: PROBLEM TO BE SOLVED: To obtain a bioactive complex implant material which is unlikely to break and which can be firmly bonded to natural bones. SOLUTION: This implant material has a porous surface layer part fused to at least a portion of the surface of a base part having a solid structure. In this case, the surface layer part has a composition consisting of 22.0 to 50.0 wt.% SiO2, 8.0 to 30.0 wt.% P2O5, 20.0 to 53.0 wt.% Cab, 1.0 to 16.0 wt.% MgO, 0 to 9.0 wt.% Al2O3, 0 to 2.0 wt.% F2, and 0 to 5,0 wt.% B2O3, and is composed of crystallized glass on which at least one kind selected from among apatite, wollastonite and diopside is precipitated, the surface layer part having average pore diameters of 20 to 2000 μm and a porosity of 40 to 95 vol.%.
Patent JP-2002077658-A (JP)
Title: Apparatus of image processing, method thereof, computer readable recording medium recording processing program
Inventor: YAMAZAKI TSUTOMU
IPC: G06T1/00
Filed: 2000-09-04
Abstract: PROBLEM TO BE SOLVED: To surely discriminate character image and the like in background image data without spoiling color classifying information for a title and the like expressed in the same color in the foreground image data when compositing the foreground image data of the character image and the like with the background image data becoming the background for the character image. SOLUTION: A color of the foreground image data having almost the same color is adjusted to the same color which enables to discriminate a boundary part of the foreground and background image data to all colors of the background image data becoming the background for the character image (S26, S27), and both of the image data are composited.
Patent JP-2002079011-A (JP)
Title: Magnetic filter apparatus
Inventor: IIDA YOSHIHIRO
IPC: B03C1/033
Filed: 2000-09-05
Abstract: PROBLEM TO BE SOLVED: To miniaturize a magnetic filter apparatus using a common permanent magnet such as a ferrite magnet and neodymium magnet by utilizing the filter function to the utmost extent at low cost. SOLUTION: The magnetic filter apparatus comprises permanent magnets so arranged face to face while sandwiching a container as to generate magnetic lines approximately perpendicular to the fluid moving direction in the container. In such a magnetic filter apparatus, under the restriction that the filter passing period of a fluid is not shorter than 0.5 seconds and not longer than 1.5 seconds, the permanent magnets are so disposed as to satisfy the following expression: B×100<=L<=B×250, wherein the reference character L (mm) denotes the installation distance between the magnets; and the reference character B (T) denotes the remnant magnetic flux density.
Patent JP-2002078577-A (JP)
Title: Refrigerator incorporated showcase
Inventor: NAKAMURA EIICHI
IPC: F25D21/04
Filed: 2000-09-06
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive refrigerator incorporated showcase preventing the occurrence of dew condensation by always forming a air flow on windshield plates with a simple structure. SOLUTION: Gaps are provided between the heat insulating box body 6 of the refrigeration-incorporated showcase 1 and exterior panels 7 and 8 to form air passages 9 and 10, and the lower ends of the air passages 9 and 10 are connected to an outside air guide path for a heat exchange with the condenser of the refrigerator. The upper ends of the air passages are connected to the punching holes 2a and 3a of handrail rails 2 and 3 located on the outside of transparent windshields 4 and 5. The exhaust heat of the refrigerator 11 is blown out from the punching holes of one handrail rail 3, and the blow-out exhaust heat and the peripheral air are sucked from the punching holes of the other handrail rail 2 to form a flow of the exhaust heat air. The flow of the exhaust heat air invariably hits the outside faces of transparent windshields 4 and 5 to prevent dew condensation on them.