baber/WOPTO huggingface dataset:
Patent JP-2002148492-A (JP)
Title: Optical module
Inventor: TATO NOBUYOSHI
IPC: H01S5/022
Filed: 2001-05-16
Abstract: PROBLEM TO BE SOLVED: To provide an optical module which is easily manufactured, has high reliability and a small polarized light extinction ratio, and has a window struc ture without the deformation of the polarization plane of a light beam to be transmitted. SOLUTION: The optical module has a casing and a joint part which has a light transmissive window structure using a sapphire plate fixed to the casing. The window of a sapphire is formed so as to satisfy the following relational expressions (1) to (4) between an angle ψformed by the C axis of the sapphire and the polarization plane of a light beam and an angle θ formed by the C axis of the sapphire and the optical axis. In the following expressions, ω is a principal refractive index of the sapphire, ε is a subrefractive index, and λis the wavelength of a transmitted light beam and d is the thickness of the window plate. (1) n=ωε/(ω2cos2θ+ε2sin2θ)1/2; (2) δ=2πd(ω-n)/λ; (3) tanβ=[(sin22ψsin2S)1/2-1]/sin2ψsinδ; (4) -30>=+20log(tanβ).
Patent JP-2002335968-A (JP)
Title: New transcription factor, its gene and its binding dna sequence
Inventor: MATSUTANI SACHIKO
IPC: C07K14/47
Filed: 2001-05-16
Abstract: PROBLEM TO BE SOLVED: To obtain a new transcription factor, its gene and its binding DNA sequence by elucidating the transcription mechanism in a prokaryotic cell and a eukaryotic cell, and further to provide a method for efficiently producing a useful protein by constructing an expression vector by using a gene encoding the transcription factor and the binding DNA sequence, and transducing the expression vector to a host. SOLUTION: The new transcription factor of a microbe derived from the gene sequence, the gene and the transcription factor-binding DNA sequence are produced by elucidating the structure and the function of IS1 which is an insertion element of the microbe, and further elucidating the structure and the function of Pol III promoter concerning the transcription of the eukaryotic cell. The useful protein is produced by incorporating the gene of the new transcription factor, and the binding sequence of the transcription factor into an expression vector, and transducing the expression vector to a microbe host.
Patent JP-2002337442-A (JP)
Title: Liquid composition, ink set, cartridge, recording unit, image forming method and ink jet recording device
Inventor: SHIROTA KATSUHIRO
IPC: C09D11/328
Filed: 2001-05-17
Abstract: PROBLEM TO BE SOLVED: To provide a liquid composition, an ink set and an image forming method, by which a highly fine image having a high printing grade with high speed fixing properties, an enough image density, a high uniformity in a solid image, being bleedless and having a favorable color reproducibility is obtained, and, in addition, a recorded image enabling to perfectly satisfy water resistance is obtained in a color ink jet recording to a plain paper. SOLUTION: The liquid composition includes a cationic substance including a cationic resin-like polymer. The ink set is a combination of the liquid composition and an ink including a coloring matter and an anionic compound. The image forming method has a process (A) for adhering the liquid composition to at least the image forming region of a recording medium and a process (B) for giving the ink at least including the coloring matter and the anionic compound to the recording medium by an ink jet recording system.
Patent JP-2002344266-A (JP)
Title: Variable gain amplifier
Inventor: TANABE MITSURU
IPC: H03F3/72
Filed: 2001-05-18
Abstract: PROBLEM TO BE SOLVED: To provide a variable gain amplifier with no change in the impedance in gain switching. SOLUTION: In a transistor 2 and transistors 5 and 6, the transistor 2 is turned on during high gain, and the transistors 5 and 6 are turned on during low gain, so that the areas of transistors 2 and the transistor 5 match with each other. Then, the output load conditions become the same for both high and low gains, and the output impedance will not vary; and as for the input impedance, the high-gain pass transistor 2 is turned off in a low-gain mode, and a current in the transistor 6 made to flow though the input impedance of a transistor 22 becomes high, and the input impedance will not vary, because the collector of a transistor 1 becomes low in impedance.
Patent JP-2002337708-A (JP)
Title: Electric power steering system
Inventor: NISHIZAKI KATSUTOSHI
IPC: B62D1/16
Filed: 2001-05-18
Abstract: PROBLEM TO BE SOLVED: To resolve problems of an electric power steering system having a variable gear ratio where sometimes a control system controlling drive of an electric motor for generating steering assist force goes down and there is no rigid feeling in steering during linear traveling. SOLUTION: When the system regarding a control part 18 controlling the drive of the electric motor 7 goes down, no current flows in the electric motor 7. When a current detecting sensor 23 does not detect any current, a relay 26 is turned on, and an electromagnetic clutch 14 is connected. Two elements of a planetary gear mechanism 14 are connected so as to integrally rotate, and an input shaft 3 and an output shaft 5 integrally rotate and function as manual steering. In linear traveling, since no current flows in the electric motor 7 also, a state of manual steering is provided in the same way and steering rigidity can be enhanced.
Patent JP-2002337654-A (JP)
Title: Air bag device for protecting knee
Inventor: TAKIMOTO MASAHIRO
IPC: B60R21/233
Filed: 2001-05-21
Abstract: PROBLEM TO BE SOLVED: To provide an air bag device for protecting a knee capable of adequately protecting a knee of a driver and contracting a time from a start to a completion of development and expansion of an air bag. SOLUTION: The air bag device M1 for protecting the knee protects the knee of the driver by projecting the folded and housed air bag from an opening 17 for projection to a vehicle back side when gas for inflation flows in. The air bag 26 has an approximately plate shape at a time of the completion of development and expansion, and includes a lower expansion part 30 and an upper expansion part 31. The lower expansion part 30 is arranged on the front side of the seated driver D, and has a width dimension in left and right directions for covering both of knees KL and KR of the driver D.  The upper expansion part 31 can cover from an upper edge side peripheral edge 18 of the opening 17 for projection on a side of a lower surface 8a of a column cover 8 to the vicinity of an upper end 8b on the side of the column cover lower surface 8a, and approaches both left and right edges 31a, 31b to a center side in left and right directions from both left and right edges 30a, 30b of the lower expansion part 30.
Patent JP-2002340815-A (JP)
Title: Pattern inspection device
Inventor: NAKAJIMA NAOTO
IPC: G01B11/24
Filed: 2001-05-22
Abstract: PROBLEM TO BE SOLVED: To provide a pattern inspection device capable of suppressing brightness irregularities, while maintaining illumination light to have comparatively high brightness. SOLUTION: An illumination optical system 20A of this pattern inspection device guides incoherent light emitted from an emission face F of an optical fiber array 21 toward a long and narrow illumination region R formed on the surface of a printed circuit board 7 by using nonaxisymmetric image formation elements such as a cylindrical lens 22 or the like. The illumination optical system 20A is constituted so that the illumination system in the longitudinal direction (X direction) of the illumination region R becomes Koehler illumination, and that the illumination system in the short direction (Y direction) of the illumination region R becomes critical illumination. The state of the surface of the printed circuit board 7 illuminated by such illumination light is imaged by using a CCD linear sensor 12 which is long and narrow in the X direction.
Patent JP-2002056569-A (JP)
Title: Optical pickup and information recording and reproducing device
Inventor: ONOZAWA KAZUTOSHI
IPC: G11B7/09
Filed: 2001-05-25
Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup which prevents the deterioration in optical characteristics by mounting the entire part of an optical system at a movable section and aligning the optical axis of a semiconductor laser element of the shortest wavelength to the optical axis center of an objective lens and an information recording and reproducing device which is mounted therewith. SOLUTION: This optical pickup has the plural semiconductor laser elements 2 which irradiate the optical recording medium 12 with a laser beam, the movable section 6 which is mounted with at least the objective lens 1 for condensing the laser beam and a base 7 which supports the movable section 6 and supporting parts 8 which are connected with the movable section 6 and the base section 7 in such a manner that the movable section 6 oscillates in the focusing direction and tracking direction of the optical recording medium 12. The optical axis of the semiconductor laser element of the shortest wavelength of the plural semiconductor laser elements 2 is aligned with the optical center of the objective lens 1.  As a result, the occurrence of the optical misalignment of the optical system when the objective lens is positionally changed may be prevented and the influence of the lens aberrations, etc., on the short- wavelength semiconductor laser element my be lessened.
Patent JP-2002352251-A (JP)
Title: Method and device for processing image for image sensor
Inventor: DAITO TAKAOMI
IPC: H04N5/335
Filed: 2001-05-28
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for processing image to extract contours with high accuracy from the output of an image sensor having light receiving elements distributed in the shape of hexagonal lattice. SOLUTION: This image processing method is constituted by arranging the light receiving elements in the shape of hexagonal lattice. In the method, the value of the midpoint of components in the horizontal direction of the image sensor is estimated by performing A/D conversion of the output value of the image sensor, calculating a plane to be extended on pixel space by approximation from a digital signal to represent an A/D converted image signal, calculating inclination of a normal line and inclination θ in the vertical direction of the plane, checking distribution of inclination by using histogram by defining intensity of the inclination θ to represent the intensity of the contours as distribution of the contours,  performing binarization to all the inclination θ by using a point to take the minimum value first as a threshold from a point the inclination of which is zero to the ones with larger inclination and performing lattice conversion for the binarized result.
Patent JP-2002358925-A (JP)
Title: Tubular bulb product
Inventor: KAWASHIMA KIYOKO
IPC: C03C3/095
Filed: 2001-05-30
Abstract: PROBLEM TO BE SOLVED: To solve the environmental problem by unleading a tubular bulb product, and to improve the sustention rate of light flux by suppressing blackening caused by reaction between Na ion contained in glass an Hg contained in discharge gas or fluorescent material. SOLUTION: With a fluorescent lamp, equipped with a main tube 1 with gas for discharge enclosed, a layer of fluorescent material 2 applied inside of the main tube 1 and with a stem section 4 fitted on both ends of the main tube 1 and equipped with an electrode 3, glass constituting at least the main tube 1 is composed, by way of example, of 60 to 75% by mass of SiO2 , 1 to 5% by mass of Al2 O3 , 1 to 5% by mass of Li2 O, 0 to 0.1% by mass of Na2 O, 1 to 15% by mass of K2 O, (provided, Li2 O+Na2 O+K2 O should be between 5 and 15% by mass), 0.5 to 5% by mass of CaO, 0.5 to 5% by mass of MgO, 0.5 to 10% by mass of SrO, 0.5 to 7% by mass of BaO, (provided, CaO+MgO+ SrO+BaO should be between 2 and 20% by mass) and PbO is practically not contained.
Patent JP-2002040932-A (JP)
Title: Ciphering device using standard algorithm for ciphering data
Inventor: RIN EIGEN
IPC: H04L9/06
Filed: 2001-05-31
Abstract: PROBLEM TO BE SOLVED: To provide a ciphering device permitting to exclude data access contention and minimize a chip area. SOLUTION: This is a data ciphering device which is provided with a data initial replacement part and a data conversion part of n-staged (n: an even number >=4) pipeline structure and uses two clocks, comprising a multiplexer for selecting one of n/2 pieces of 48-bit data, eight pieces of S-Boxes to which the eight pieces of 6-bit addresses composing the 48-bit data outputted from the multiplexer are inputted, respectively, and which output eight pieces of 4-bit data, a demultiplexer for outputting to distribute the eight pieces of 4-bit data outputted from the S-Boxes as n/2 pieces of 32-bit data, and a control machine for controlling the multiplexer and the demultiplexer according to a 3rd clock and a 4th clock, and the frequencies of the 3rd and 4th clocks are n/2 times the frequencies of the 1st and 2nd clocks.
Patent JP-2002359387-A (JP)
Title: Solar battery installation structure and solar power generation system
Inventor: ITOYAMA SEIKI
IPC: H01L31/05
Filed: 2001-06-01
Abstract: PROBLEM TO BE SOLVED: To provide a solar battery installation structure which reduces power loss by suppressing a leak current. SOLUTION: The solar battery installation structure comprises at least a support 102 and a solar battery cell 102; and the solar battery cell 101 is fixed onto the support 102 and has its electrically line portion exposed at least partially to environment, and the support 102 comes into only point or line contact with a ground surface 104.
Patent JP-2002362883-A (JP)
Title: Chain block with auxiliary motor
Inventor: NAKAYAMA TATSUYA
IPC: B66D3/18
Filed: 2001-06-01
Abstract: PROBLEM TO BE SOLVED: To solve a problem that impact force in start up of auxiliary motor is large and large capacity battery is required due to high start up current and the auxiliary motor acts as resistance in hand wheel operation. SOLUTION: In a chain block transmitting rotation of the hand wheel 1 to a drive shaft 10 via a transmission mechanism and rotating a load sheave 11 via a reducing mechanism 13 rotatably installed on the drive shaft externally, the hand wheel 1 and the transmission mechanism are provided on one side of the load sheave 11, and the auxiliary motor 15 linking with the drive shaft 10 via an electromagnetic clutch 16 is provided on another side of the load sheave 11.
Patent JP-2001358073-A (JP)
Title: Pattern forming method
Inventor: MURAYAMA MAKOTO
IPC: G03F1/68
Filed: 2001-06-04
Abstract: PROBLEM TO BE SOLVED: To provide a proximity exposure method for resolving a fine pattern beyond the resolution limit in conventional proximity exposure method and a photomask designing/manufacturing method using the same. SOLUTION: The amplitude and phase distribution of the transmitted light of a photomask are calculated so as to obtain a required light intensity distribution on a substrate disposed separating from the photomask by a fine space. A fine shading pattern and a phase shifter are formed on the photomask so as to realize a calculated distribution. Therefore, a pattern of high resolution can be transferred by the use of a conventional proximity system.
Patent JP-2002367757-A (JP)
Title: Heater unit
Inventor: KANAZAWA SHIGETOSHI
IPC: H05B3/20
Filed: 2001-06-05
Abstract: PROBLEM TO BE SOLVED: To provide a heater unit which can stop electricity to a heater when the heater gets involved in some kind of abnormalities (when temperature rises beyond a given limit), without the need of an element using many parts for temperature detection like a thermistor. SOLUTION: A safe heater unit can be realized which can suppress heating below a certain temperature by providing a heater and another irreversible resistive element having PTC characteristics in the way of an electrode 2 constituting a heater on the same base material which acts so as to restrain current flowing through the heater when the temperature rises above a certain limit to shun the current to the heater, though not affecting passage of electricity to the heater, and can suppress generation of heat below a certain temperature.
Patent JP-2002360943-A (JP)
Title: Robot toy
Inventor: ONISHI TOMOHIKO
IPC: A63H11/00
Filed: 2001-06-05
Abstract: PROBLEM TO BE SOLVED: To provide a bipedalism robot toy hard to fall down even if it walks with long steps. SOLUTION: This robot toy is provided with walking mechanisms 1 to 8 adapted to walk by repeatedly letting out one leg in front of or in the rear of the other leg and stopping means 12, 31, 32, 33 for stopping walking in a fixed walking attitude. Thus, stopping in the state of being easy to fall is avoided in walking with long steps.
Patent JP-2002368271-A (JP)
Title: Iii nitride compound semiconductor light-emitting device
Inventor: KAMIMURA TOSHIYA
IPC: H01L33/62
Filed: 2001-06-06
Abstract: PROBLEM TO BE SOLVED: To provide a flip-chip light-emitting device which is superior in durability and has stable device functions. SOLUTION: A flip-chip type III nitride compound light emitting device is equipped with Au layers, which are each formed on the surfaces of a P-side electrode and an N-side electrode through the intermediary a Ti layer.
Patent JP-2002367446-A (JP)
Title: Utp cable
Inventor: NAKAMURA KOJI
IPC: H01B11/04
Filed: 2001-06-07
Abstract: PROBLEM TO BE SOLVED: To provide an UTP cable for satisfying the specified electrical characteristics, capable of keeping the distance between pair strands over a certain value, even if the cable is bent. SOLUTION: The UTP cable 1 consists of a plurality of pair strands 3, each formed by twining a plurality of insulated cores 2 of such a structure that a conductor 6, is insulated with an insulating material 7 and a cruciform partitioning bulkhead 4 which is inserted among the pair strands 3, so as to separate them at a certain distance from one another followed by stranding together, and these stranded pair strands 3 are covered with a sheath 5, where the bulkhead 4 is furnished at its wall surface of each forefront with a curved surface part 10 for tracing the circumference of a virtual pair strand circle 9 formed in a diameter having a size to accommodate the pair strands 3 in all sections, perpendicularly intersecting the longitudinal direction of the UTP cable 1.
Patent JP-2002370096-A (JP)
Title: Polluted water cleaning apparatus using bacteria carrier
Inventor: TSUNODA KENJI
IPC: C12M1/00
Filed: 2001-06-14
Abstract: PROBLEM TO BE SOLVED: To provide a polluted water cleaning apparatus wherein not only cleaning efficiency is enhanced but also control is facilitated by separating a polluted water cleaning system and a culture system of nitrifying or denitrifying bacteria. SOLUTION: Bacteria carriers having nitrifying bacteria and denitrifying bacteria respectively adsorbed thereon separately at a high density are moved by the bacteria carrier feed means provided between a septic tank and a high density culture liquid tank of those bacteria independent from the polluted water system thereof and the contact of a nitrogen compound contained in the septic tank with those bacteria is achieved while the bacteria adsorption density at a time when the bacteria carriers are immersed in the septic tank is held to as high a density as possible to decompose and remove the nitrogen compound. A fiber or a resin sheet is used as the substrate of the bacteria carriers and the bacteria carriers are provided in polluted water under tension so as to be movable to a predetermined position in the septic tank.  The endless bacteria carriers are continuously circulated to bring the nitrogen compound contained in the polluted water into contact with bacteria adsorbed on the bacteria carriers to decompose and remove the nitrogen compound. The bacteria carriers are immersed in the culture liquid tank wherein the nitrifying and denitrifying bacteria adsorbed on the bacteria carriers are cultured at a high density of not less than 10<7> -10<9> cells/ml and fed in the septic tank while keeping the same density to be again circulated to the high density culture liquid tank.
Patent JP-2002374335-A (JP)
Title: Foldable mobile telephone set and method for detecting its opening/closing
Inventor: KOYAMA YUKIO
IPC: H04M1/02
Filed: 2001-06-15
Abstract: PROBLEM TO BE SOLVED: To provide a foldable mobile telephone which will not adversely offset an external magnetic recording medium. SOLUTION: A first inclination detection part 12 detects an inclination value of a casing constituting a main body part 1, in the acting direction of gravity from the normal direction of the casing, a second inclination detection part 13 detects an inclination value of a casing, constituting a cover part in an acting direction of the gravity from the normal direction of the casing, and a control part 11 compares these values to determine the opening and the closing of the foldable mobile telephone set. Consequently, there is not need to provide a magnet for detecting the opening and the closing of the foldable mobile telephone set, thereby taking into consideration the influence on the magnetic recording medium is eliminated.
Patent JP-2002372872-A (JP)
Title: Belt drive device and image forming device
Inventor: KOBAYASHI KAZUHIKO
IPC: G03G15/01
Filed: 2001-06-15
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of restricting degradation of image quality caused by unstable running seed of a belt. SOLUTION: A drive roller 200 having a shaft member 200a and a roller portion 200b fixed on the member 200a is provided with two rotating members 200c which are supported on the shaft member 200a at both ends of the roller portion 200b so as to freely rotate. The transfer belt 60 is stretched round the drive roller 200 so that the rib-like projections 60b at both ends of the transfer belt 60 are situated outside the corresponding rotating members 200c.
Patent JP-2002371060-A (JP)
Title: Method for producing optically active aminopiperidine derivative
Inventor: WATABE KAZUHIKO
IPC: C07B61/00
Filed: 2001-06-18
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an optically active 3- aminopiperidine derivative or its salt from an easily available raw material by a simple operation. SOLUTION: This method for producing the optically active 3-aminopiperidine derivative or its salt comprises forming an oxime of an optically active 3- oxopiperidine derivative or its salt, collecting a diastereomeric isomer mixture obtained by a reduction of the oxime group, separating both isomers by distributing the both isomers unevenly into a filtrate and crystal by a crystallization, and then removing its protecting group.
Patent JP-2003005867-A (JP)
Title: Unit identification method
Inventor: SHIGIHARA MASAHIRO
IPC: H04L25/02
Filed: 2001-06-20
Abstract: PROBLEM TO BE SOLVED: To provide a unit identification method capable of optionally changing identification information about units by defining the number of pins for identification as one in each slot regardless of an increase in units. SOLUTION: A backboard is provided with a shared constant voltage power supply, and a programmable resistance connected to the power supply is arranged in each slot. An inherent voltage value is taken out to a unit identification terminal of each unit by controlling this resistance value. When a unit mounted base board is inserted into a slot, an identification voltage detection circuit of the unit detects the voltage to decide whether or not to be a correct combination.