baber/WOPTO huggingface dataset:
Patent JP-2002303588-A (JP)
Title: Pattern defect inspection device
Inventor: YAMAGUCHI TOSHIHIRO
IPC: G01N21/956
Filed: 2001-04-04
Abstract: PROBLEM TO BE SOLVED: To provide a pattern defect inspection device reducing pseudo defect detection due to uneven colors and capable of improving sensitiveness of actual defect detection. SOLUTION: The pattern defect inspection device is provided with an analog- to-digital converter 2 detecting a gray level image signal of a pattern under inspection and converting it into a digital image signal, a pixel unit positioning part 11 calculating a density difference while shifting one of two images to be compared in pixel units, a local comparing part 20 comparing signals acquired from minutely delimited local adjacent portions, a data converting part 21 outputting 0 when there is no signal difference, and a comparing part 14 comparing signals of all right and left patterns based on outputs of the data converting part 21.
Patent JP-2002303747-A (JP)
Title: Optical waveguide
Inventor: HONGO AKISHI
IPC: G02B6/122
Filed: 2001-04-05
Abstract: PROBLEM TO BE SOLVED: To provide an optical waveguide in which a grating is easily formed not only in a core zone but also in a clad zone and which is usable as a high- performance narrow band wave selection filter. SOLUTION: In the optical waveguide 1 which is provided with a plane substrate 2, a core zone formed on the plane substrate 2, and clad zones 3 and 5 covering the core zone 4 and having a refractive index relatively smaller than that of the core zone 4, the core zone 4 is formed of a SiO2 glass containing GeO2 and the clad zones 3 and 5 are formed of a SiO2 glass containing SnO2 .
Patent JP-2001358625-A (JP)
Title: Transmitter and transmission diversity method
Inventor: KITADE TAKASHI
IPC: H04W52/42
Filed: 2001-04-06
Abstract: PROBLEM TO BE SOLVED: To suppress the received power control error at a mobile station, when diversity reception is conducted with antennas at a base station. SOLUTION: Each divided data is spread using spread codes, which are orthogonal to each other in a diffusion part 104, 105 at a base station, and the diffused data are sent from an antenna 106, 107. The received signal is received inversely with the same inverse diffusion code, which was used at the base station, in an inverse diffusion part 202, 203 of a mobile station, the inversely diffused signal is demodulated in demodulating parts 204, 205, a received power is measured from the demodulated result in received power measuring parts 207, 208, and the received power measured is combined in a received power combining part 209, and the transmitting power is controlled in a transmitting power control unit 212 based on the received power combined.
Patent JP-2002313580-A (JP)
Title: Organic el element and organic el display
Inventor: SAKAGUCHI YOSHIKAZU
IPC: H05B33/22
Filed: 2001-04-09
Abstract: PROBLEM TO BE SOLVED: To provide a blue organic EL element achieving a high emission efficiency, high brightness, and a long service life. SOLUTION: An electron injection layer or an electron transporting layer contains a compound represented by general formula (1). In the formula (1), M represents a metal atom; R<1> to R<6> each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cycloalkyl group, or a cyano group, with at least one of R<1> to R<6> being an aryl group; L represents a ligand having a halogen atom, an alkoxy group, an aryloxy group, an alkyl group, an aryl group, or a cycloalkyl group; each of the groups may have a substituent; and n represents 1 or 2.
Patent JP-2002301436-A (JP)
Title: Seprater for plural kinds of substances having different coefficient of repulsion
Inventor: NAKAMURA MASAYOSHI
IPC: B07B13/10
Filed: 2001-04-09
Abstract: PROBLEM TO BE SOLVED: To solve the problems in a conventional separater for root crops such as potatoes; (a) difficulty of separating substances having almost the same specific gravity, (b) low probability in removal by catching stems and leaves with a rod having an uneven surface, (c) a large loss in separation by a knife utilizing the properties of products such as hardness and softness, (d) separation of substance other than targeted products by utilizing differences of light reflectivity, transmission of oscillatory wave or electric analysis and (e) fatigue of eyes in separation by visual observation. SOLUTION: The separater is constituted so that the separation is conducted utilizing the difference of coefficients of rebound of the root crops or cereals and the admixture.
Patent JP-2002313923-A (JP)
Title: Semiconductor device
Inventor: TAKASU HIROAKI
IPC: H01L27/06
Filed: 2001-04-09
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device where highly accurate analog ICs are formed by mounting perfect depletion high speed MOS transistors and high breakdown strength MOS transistors mixedly on an SOI substrate while reducing the cost by enhancing strength against ESD breakdown, preventing cracking in the dicing process and enhancing the positioning accuracy of trimming. SOLUTION: A laser trimming fuse element and a breeder resistor are formed of single crystal silicon device forming layers on an SOI substrate. Perfect depletion high speed MOS transistors, high breakdown strength MOS transistors and ESD protective elements are formed on the single crystal silicon device forming layer, and the single crystal silicon device forming layer in the perfect depletion high speed MOS transistor region is formed thinner as compared with other regions. The scribe region of a semiconductor integrated circuit has such a structure that the single crystal silicon device forming layer and a buried oxide film are removed.
Patent JP-2002314513-A (JP)
Title: Data transceiving method in infrared two-way communication system
Inventor: WADA ARIKATSU
IPC: H04W28/04
Filed: 2001-04-10
Abstract: PROBLEM TO BE SOLVED: To provide a data transceiving method in an infrared two-way communication system that prevents stagnation of processing steps on a receiver side when a transmitter side repetitively transmits same data. SOLUTION: According to the method, when the transmitter side repetitively transmits same data in spite of return of an ACK signal from the receiver side to the transmitter side, and number of transmission times of the data reaches a prescribed reference number of times, the reception is terminated and the processing continues to a step that is scheduled next.
Patent JP-2002306966-A (JP)
Title: Method for manufacturing highly activated photocatalyst and method for treating hydrogen sulfide using highly activated photocatalyst
Inventor: TAJI KAZUYUKI
IPC: B01J37/14
Filed: 2001-04-11
Abstract: PROBLEM TO BE SOLVED: To obtain a highly activated photocatalyst interacting with hydrogen sulfide to generate sulfur and hydrogen. SOLUTION: The highly activated photocatalyst is obtained by oxidizing a metallic sulfide such as zinc sulfide under an oxidizing atmosphere or with a prescribed oxidizing agent. The method for treating hydrogen sulfide using the highly activated photocatalyst is constituted of a hydrogen sulfide dissolving process for dissolving hydrogen sulfide gas, for example in a sodium hydroxide aqueous solution in a hydrogen sulfide dissolving tank 1 to prepare a sodium sulfide solution, a hydrogen recovering process for adding the highly activated photocatalyst in the sodium sulfide solution into a photocatalytic reactor 3, irradiating with ultraviolet ray to produce gaseous hydrogen and polysulfide ion and recovering hydrogen,  and a sulfur recovering process for recovering sulfur from the polysulfide ion in a sulfur recovering tank 5 and recirculating the solution after the sulfur recovery to the hydrogen sulfide dissolving tank 1 to recycle in the hydrogen sulfide dissolving process.
Patent JP-2002313973-A (JP)
Title: Package for optical communication
Inventor: ITAKURA HIDEAKI
IPC: H01L23/10
Filed: 2001-04-11
Abstract: PROBLEM TO BE SOLVED: To provide a package for optical communication having airtight reliability without increasing the size of the package. SOLUTION: In the package 10 for optical communication where a through hole 20 for communicating with a cavity section 14 is formed at one sidewall section of a substrate 15 for forming the cavity section 14 to mount a semiconductor device for optical communication to the inside and a translucent member 28 opposing the tip of an optical fiber 27 is provided in an insertion hole 22 of a metal fixing member 21 that is inserted into the through hole 20 for sticking, a step section 25 and a channel 26 are provided. At the step section 25, the through hole 22 of the metal fixing member 21 becomes a small-diameter hole 24 from a large-diameter hole 23 being smaller than the diameter of the through hole 20. The channel 26 is provided in the direction of the insertion hole 22 along the large-diameter hole 23 of the step section 25.  A translucent member 28 is joined to the step section 25 by low-melt-point glass 29.
Patent JP-2002267661-A (JP)
Title: Method of analyzing milked milk by using data collecting and processing device
Inventor: TANIDA SHINJI
IPC: G01N33/487
Filed: 2001-03-08
Abstract: PROBLEM TO BE SOLVED: To prevent an illness caused when a neonate drinks colostrum. SOLUTION: Data on milk are acquired. A dangerous substance and a toxic substance are detected. The toxic substance is processed on a database. The illness which is caused by it, is estimated so as to be prevented.
Patent JP-2002307166-A (JP)
Title: Welding method
Inventor: FUJITANI YASUYUKI
IPC: B23K9/02
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To provide a welding method which is good in executability and enabling automatic remote control. SOLUTION: The welding method of welding a nozzle stub 2 penetrating an end plate 1 at a groove worked at the peripheral edge of its through-hole by using a TIG welding torch, in which the groove is prepared to a narrow gap 4 and is subjected to TIG welding and a round part 7 is formed by diametral reduction working in the outer peripheral weld zone of the nozzle stub 2.
Patent JP-2002307879-A (JP)
Title: Trueness discriminatable card
Inventor: NAKASONE SATOSHI
IPC: B42D15/10
Filed: 2001-04-16
Abstract: PROBLEM TO BE SOLVED: To easily confirm that a hologram for confirming trueness is a diverted matter and avoid copying of a concealed pattern through analyzing, since the concealed pattern is separable or avoid misidentifying of the copy as the evidence of trueness by the existence of the hologram only and permit to confirm the trueness without comparing the hologram with a moire pattern which will become a standard. SOLUTION: An invisible pattern 5, such as the hologram or the like, is formed between a core sheet 2b and an over sheet 3b of a card 1 while a confirmation pattern 7 is formed on the over sheet 3b whereby the moire pattern 8 is produced, and the different body of a confirmation pattern or a reference pattern is unnessitated thereby making the separation of both patterns, analysis or copying difficult and permitting the resolution of the problem.
Patent JP-2002316250-A (JP)
Title: Low speed and high pressure casting apparatus
Inventor: SUZUKI KATSUZO
IPC: B22D18/02
Filed: 2001-04-17
Abstract: PROBLEM TO BE SOLVED: To provide a low speed and high pressure casting apparatus in which a sure and effective feeder head effect can be expected with a pressurizing rod and the pressurizing rod can be drawn out from the feeder head part with weak force and also, development of galling between the pressurizing rod and a sleeve can be restrained by preventing the sticking of molten metal on the tip part of the pressurizing rod. SOLUTION: This casting apparatus is applied, by which the sleeve 4 is brought into contact with a sprue part 3 in a metallic mold and the pressurizing rod 5 is inserted into this sleeve so as to be freely advanced/retreated and also, a molten metal flowing inlet 6 is arranged on the way of this sleeve, and after filling the molten metal into a cavity 1 from the molten metal flowing inlet with low pressure, the molten metal in the cavity is pressurized and cast at the low speed and high pressure with the pressurizing rod. The inner diameter of the sprue part 3 is formed as a larger diameter by a little than the outer diameter of the pressurizing rod 5 and a feeder head pool part 8 formed as sufficiently larger inner diameter than the outer diameter of the pressurizing rod, is arranged just above the sprue part 3.
Patent JP-2002311017-A (JP)
Title: Method for measuring easily-decomposable organic substance in sewage
Inventor: TANAKA NAOYA
IPC: G01N33/18
Filed: 2001-04-18
Abstract: PROBLEM TO BE SOLVED: To measure the concentration of easily-decomposable organic substance Ss in a sewage in a short time. SOLUTION: Microorganisms are allowed to be present for biological treatment in the sewage in a treatment tank 12, and the concentration of the easily- decomposable organic substance Ss in the poured sewage is obtained by the formula: Concentration=Quantity of consumed oxygen/(1-yield) by using the quantity of oxygen consumed when the sewage to be measured is poured in the treatment tank 12, and the yield.
Patent JP-2002319558-A (JP)
Title: Manufacturing method for semiconductor device
Inventor: NAITO TETSUYA
IPC: H01L21/304
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To precisely and economically make a semiconductor chip thin by polishing its reverse surface. SOLUTION: A chip tray 10 is manufactured by forming many storage grooves 12 each having a vacuum suction hole 13 and an escape groove 14 in a tray substrate 11 formed of a semiconductor wafer together by photolithography at a time with high precision; and semiconductor chips 20 having been diced are put in the respective storage grooves 12 of the chip tray 10, which is mounted on a wafer holding jig 32 of a wafer grinding device 30 instead of the wafer, so that the reverse surfaces of the semiconductor chips 20 are ground together. The escape grooves 14 eliminate variance in grinding pressure due to projections of bump electrodes 21 of the semiconductor chips 20 and thickness control by the reverse-surface grinding under uniform, and high- precision machining size control can be exercised over the semiconductor chips 20 stored in the chip tray 10.
Patent JP-2002319690-A (JP)
Title: Solar battery cell
Inventor: HISAMATSU TADASHI
IPC: H01L31/04
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To provide a III-V compound semiconductor multijunction solar battery cell having a theoretical photoelectric conversion efficiency of 34% or higher and photoelectric conversion efficiency of 27% or higher, in the level of an industrial product as well. SOLUTION: The top cell of this solar battery cell is made of a semiconductor material expressed by (Al1-y Gay )1-x Inx P, and the bottom cell of this cell is made of another semiconductor material which is expressed by GaAs1-z Sbz .
Patent JP-2002316693-A (JP)
Title: Drifter recognition apparatus radar wave reflection type float
Inventor: NAKADA MAKOTO
IPC: B63C9/00
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To provide a means for a drifter especially on the sea to be found by a radar generally kept on a ship. SOLUTION: If a material reflecting a radar wave can continuously exist at a height of about 1 to 1.5 m from the sea surface, an existing position of the material can be recognized by the radar wave emitted from a ship or the like. This apparatus has a radar reflection material kept at a height of about 1 to 1.5 m from the sea surface with using a portable hollow bar shaped apparatus to effectively reflect the emitted radar wave and makes the position found by a searcher. If a person drifting on the sea use this apparatus, the searcher can easily search the position and it is greatly helpful to find and pick up the person in an early stage.
Patent JP-2002051345-A (JP)
Title: Image information converter and method
Inventor: SATO KAZUFUMI
IPC: H04N19/126
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To conduct stable code quantity control, when converting image information. SOLUTION: An image information converter converts interlaced scanning MPEG 2 image compression information (bit stream) into progressive scanning MPEG 4 image compression information (bit stream). An activity combining section 15 combines activity information in the MPEG 4 image compression information (bit stream) for every macroblock based on the activity information for every activity in the MPEG 2 image compression information (bit stream), and an MPEG 4 image information coding section (I/P-VOP) 11 uses the activity information as parameters for adaptive quantization, when coding the MPEG 4 image compression information.
Patent JP-2002322326-A (JP)
Title: Torsional damper
Inventor: SANO HIROYUKI
IPC: C08L23/04
Filed: 2001-04-25
Abstract: PROBLEM TO BE SOLVED: To provide a torsional damper capable of expanding a rubber hardness range and securing high slip torque. SOLUTION: This torsional damper is composed of a vulcanized ethylene-alkyl acrylate copolymer containing a carboxy group that has a Mooney viscosity ML1+4 (100 deg.C) of 25 or above. The torsional damper the raw material of which can be fabricated without adding an internally added releasing agent since the copolymer having a high Mooney viscosity is used, can secure sufficient slip torque because no releasing agent is added internally.
Patent JP-2002330274-A (JP)
Title: Method, device and program for converting data
Inventor: SANO TETSUYA
IPC: G06F3/12
Filed: 2001-04-27
Abstract: PROBLEM TO BE SOLVED: To convert data into data with a font embedded therein even with respect to the font that is conventionally incompatible about a data converting method, etc., for converting data written, for example, in PS(Adobe post script) into data described in, for example, PDF(Adobe portable document format) and also with a font embedded therein. SOLUTION: A dummy font having information of a character width being the same as that of a desired font to be embedded is prepared, the data described in PS are converted into data which are described in PDF and in which the dummy font is also embedded, the dummy font embedded in the data obtained in this way is replaced with the desired font, and the data which are described in PDF and in which the desired font is also embedded are thereby generated.
Patent JP-2002229554-A (JP)
Title: Image processor
Inventor: SHIBATA TAKAYUKI
IPC: G06F3/14
Filed: 2001-04-27
Abstract: PROBLEM TO BE SOLVED: To provide an image processor which previously detects image data not displayed because they are overwritten with source image data of high display priority, and displays the dots of the low display priority behind a transparent color without gaining unnecessary access to an image memory and a display buffer. SOLUTION: An attribute controller 2k when generating an image by putting pieces of source image data together transfers pixel data of the dots of source image data behind the dots of the transparent color to display buffers 2e and 2f as to all source images having overlap parts from source image data having higher display priority than redivided source image data to source image data having the lowest display priority on condition that if pieces source image data overlap, the pixel data of the upper source image data are in the transparent color and the pixel data of the dots of the source image data behind the dots of the transparent color are not in the transparent color.
Patent JP-2002330251-A (JP)
Title: Facsimile server
Inventor: TANIMOTO YOSHIFUMI
IPC: H04N1/32
Filed: 2001-05-01
Abstract: PROBLEM TO BE SOLVED: To provide a facsimile server, with which picture data corresponding to the receiving ability of a receiving side terminal can be transmitted. SOLUTION: This facsimile server is provided with a means for storing the picture data of an original in an HTTP server, a means for reporting a URL for authentication picture for accessing an authentication picture to be authenticated in the case of acquiring the picture data stored in the HTTP server and an authentication password to be inputted on the authentication picture to a destination to transmit the original by electronic mail and a means for reporting a URL for picture data for accessing the picture data stored in the HTTP server to the input source of the authentication password when matching of a password inputted to the authentication picture and the authentication password is detected.
Patent JP-2002330073-A (JP)
Title: Digital/analog converting circuit
Inventor: TAKAHASHI YUJI
IPC: H03M1/70
Filed: 2001-05-01
Abstract: PROBLEM TO BE SOLVED: To provide a digital/analog converting circuit in which the output voltage range can be set optionally and transistors in the following circuit are not saturated. SOLUTION: The digital/analog converting circuit comprises extra rudder resistors RB and RC provided at the final stage on the output side of rudder resistors R1-R5 and R10-R16, and reference voltage generating sections RA1, RA2, Q1-Q15, 22, 24 for generating a reference voltage Vref between a first power supply voltage Vcc and a second power supply voltage GND being applied to the extra rudder resistors RB and RC. Since the voltage between the first power supply voltage Vcc and the second power supply voltage GND outputted from the rudder resistors R1-R5 and R10-R16 is divided by the extra rudder resistors RB and RC and compressed before being superposed on the reference voltage Vref, the output voltage range can be set optionally such that transistors in the following circuit are not saturated.
Patent JP-2002327238-A (JP)
Title: Bearing ring for rolling bearing
Inventor: FUJIOKA NORIO
IPC: C22C38/42
Filed: 2001-05-02
Abstract: PROBLEM TO BE SOLVED: To provide a bearing ring for a rolling bearing, which has an adequate press forming property and a high hardening property, with the use of an inexpensive material. SOLUTION: The bearing ring for the rolling bearing is a workpiece molded into one piece from a steel sheet comprising 0.15-0.25 wt.% C, 0.15 wt.% or less Si, 0.70-0.95 wt.% Mn, and 0.30-0.50 wt.% Cr. The workpiece has a hardened layer which is carburized and quenched, and of which the surface hardness is 58 or higher by HRC. The steel sheet may include 0.030 wt.% or less P, 0.010 wt.% or less S, 0.30 wt.% or less Cu, 0.25 wt.% or less Ni, 0.020-0.040 wt.% sol Al, and 0.010-0.020 wt.% N, other than the above components. Raceway surfaces with which the roller 2 contacts, are formed in the inner face 3a and 4a of the bearing rings 3 and 4. The bearing ring is machined into a L-shaped torus in the cross section so as to grip the roller 2a and a holder 5 from the outside.
Patent JP-2002328164-A (JP)
Title: Target tracking method and radar system
Inventor: MAEKAWA RYOJI
IPC: G01S7/295
Filed: 2001-05-02
Abstract: PROBLEM TO BE SOLVED: To resolve a problem of deterioration of tracking performance due to not being able to determine on a real time basis a false alarm probability and a detection probability necessary in calculating reliability of a formed hypothesis. SOLUTION: The target tracking method is provided with a false alarm probability calculating step ST8 of calculating the false alarm probability on the basis of the number of detection plots, an S/N value or accuracy in each area determined from a probability distribution, and a detection probability calculating step ST9 calculating the detection probability on the basis of the number of detection plots, the S/N value or the accuracy in each area determined from the probability distribution. The reliability of the hypothesis is calculated by using the false alarm probability of the step ST8 and the detection probability of the step ST9.