baber/WOPTO huggingface dataset:
Patent JP-2004302007-A (JP)
Title: Optical waveguide member and optical memory element
Inventor: EZAKI SATOSHI
IPC: G02B6/122
Filed: 2003-03-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical waveguide member and an optical memory element which are constituted so that noise images in a reproduction picture are reduced and information recorded in the optical memory element is surely reproduced .  <P>SOLUTION: The optical memory element has a plurality of optical waveguide members 103 each of which is equipped with a core layer 101 which functions as an optical waveguide and which consists of a light transmissive resin and first and second clad layers 102 which consist of the light transmissive resin and which are provided in a form for holding the core layer 101 from both faces of the core layer 101 and has two sheets of resin films 105, 105' which hold a laminated body which is constituted by the plurality of optical waveguide members 103 from up and down directions and is characterized in that the concentration of a benzene ring contained in the optical waveguide members 103 is ≤4×10<SP>-4</SP>mol per unit weight and noise of the reproduced picture in which the ratio of a satellite signal image intensity to the main signal image intensity in the reproduced image is ≤0.3 is significantly reduced.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004302047-A (JP)
Title: Optical demultiplexer and optical multiplexer
Inventor: TAKAHASHI KOZO
IPC: G02B6/293
Filed: 2003-03-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a compact optical demultiplexer capable of demultiplexing light from a plurality of optical fibers.  <P>SOLUTION: Light beams emitted from an optical fiber 1c are made to be a parallel beam flux by a microlens 2c to be made incident on a diffraction grating 3. Light beams of wavelengths of λ1 to λ5 which are demultiplexed by the diffraction grating 3 are condensed for every wavelength by a microlens 3. Although light beams emitted from other optical fibers 1a, 1b, 1d, 1e are also demultiplexed through similar optical paths, since positions of respective optical fibers are shifted horizontally as shown in (b), light beams passed through microlenses 2a to 2e illuminate different locations of the grating 3. As a result, optical paths of return light beams are shifted in the vertical direction of a paper face to enter into microlenses 4a to 4e and the light beams are condensed at positions different in a direction vertical to the paper face. Then, these light beams are led to a next device with optical fiber groups 5a to 5e.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004304591-A (JP)
Title: Ofdm demodulator and method
Inventor: FUNAMOTO KAZUHISA
IPC: H04J11/00
Filed: 2003-03-31
Abstract: <P>PROBLEM TO BE SOLVED: To eliminate erroneous detection for a symbol boundary position in order to improve detection accuracy for the symbol boundary position.  <P>SOLUTION: In an OFDM (Orthogonal Frequency Division Multiplexing) receiving device 1, a guard correlation / peak detecting circuit 12 computes the boundary position of an OFDM symbol based on autocorrelation of guard intervals of an OFDM signal. Based on the computed boundary position, OFDM symbol synchronous processing is performed. During calculation of the symbol boundary position, a detection range established at time interval periods of the OFDM symbol is set, and the maximum value of autocorrelation values of guard intervals is searched within the detection range. A sample position where the maximum value is detected is employed as the symbol boundary position. Moreover, the position of the detection range is controlled in a time direction so that it may become optimal suitably.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004299319-A (JP)
Title: Powder carrying structure
Inventor: MINAMI AKINORI
IPC: B01J35/04
Filed: 2003-03-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a powder carrying structure which is easily handled as it is hardly broken by impact and powder hardly falls down, can exhibit sufficiently functions the powder has, and high in performance and low in pressure loss.  <P>SOLUTION: The powder carrying structure forms a number of fluid flow paths perforated with walls. The wall comprises (1) a base material comprising a powder-containing fiber sheet which is manufactured without using a thickener and/or a liquid adhesive and wherein a thermoplastic fiber and a powder are mixed, or (2) the base material comprising a powder-containing composite fiber sheet wherein a fiber sheet and a dispersion comprising the thermoplastic fiber and the powder dispersed without using the thickener and/or the liquid adhesive are mixed and integrated. In addition, the number of the fluid flow paths on a face intersecting at right angles to the fluid flow paths of the powder carrying structure is ≥62 pieces/cm<SP>2</SP>.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004299893-A (JP)
Title: Method and device for pneumatic power transportation of wet powder
Inventor: SATO KAZUO
IPC: B65G53/52
Filed: 2003-04-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method and a device for pneumatic power transportation for wet powder capable of transporting with pneumatic power without reaching a plugged state by suppressing scaling event even if the surface-adhered liquid amount of the wet powder is rather high.  <P>SOLUTION: This pneumatic power transportation device for the wet powder feeding, together with air, the wet powder from one side to the other side of a transportation tube comprises a means A supplying the wet powder to one side of the transportation tube 12, a means D for heating transportation air so that the powder is brought into a flow state by evaporating liquid phase present between the wet powder particles, and a means 17 for thermally insulating the transportation tube for holding the heated air under transportation at a specified temperature.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004345955-A (JP)
Title: Method for producing 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone
Inventor: ENOKIDA HIROTAKA
IPC: C07C315/04
Filed: 2003-04-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone useful as a developer for a thermosensitive recording material in a short reaction time in a high yield.  <P>SOLUTION: The method for producing 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone comprises rearranging 4,4'-diallyloxydiphenyl sulfone under microwave irradiation.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004312820-A (JP)
Title: Method for manufacturing bobbin for stepping motor, mold used for manufacturing bobbin, and yoke
Inventor: NAKAMURA TAKEHIDE
IPC: B29C33/12
Filed: 2003-04-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a bobbin for a stepping motor which can shorten a molding cycle by reducing a molding man hour and to provide a mold for molding used for manufacturing the bobbin and a yoke.  <P>SOLUTION: The mold 40 for molding includes a positioning member 50 for holding first to fourth yokes 22(1) to 22(4) at predetermined positions in a mold opening state. All the first to fourth yokes 22 are sequentially accumulated, continuously engaged with the positioning member 50, and the mold 40 is then closed. A synthetic resin is cast in the mold 40 after the mold 40 is closed. The bobbin 20 is integrally molded in the mold 40. A terminal 23 disposed at the lower side of the first yoke 22(1) is set to the mold 40. And, a central die 61 of the mold 40 is inserted from above into the first to fourth yokes 22(1) to 22(4).  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004306366-A (JP)
Title: Ultrasonic welding structure for plastic product
Inventor: FUJIMOTO FUTOSHI
IPC: B29C65/50
Filed: 2003-04-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ultrasonic welding structure not having fear such that a metal is mixed as foreign matter when a plastic product such as a container or the like is recycled and capable of holding a joined part to high strength.  <P>SOLUTION: The end surfaces 62 of plastic members are butted mutually to form the joined part 7 and a reinforcing rib 8 is arranged so as to straddle the joined part while an ultrasonic welding tool 2 is pressed to the reinforcing rib to ultrasonically weld the plastic members to obtain the plastic product. The ultrasonic welding tool is equipped with unevenness 3 at its leading end part and the reinforcing rib comprises the same material as the plastic members. The joined part is supported by the reinforcing rib.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004309272-A (JP)
Title: Plane probe, its manufacturing method and optical pickup device
Inventor: YAMAGUCHI TAKAYUKI
IPC: G11B7/22
Filed: 2003-04-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide inexpensively and simply a plane probe having a finer projection compared with a light wavelength whose aperture diameter is accurately controlled, and suitably applicable to a near-field microscope, a near-field recording reproduction device or the like.  <P>SOLUTION: This plane probe 1 is constituted so that a projection tip aperture 6 is formed by grinding a projection tip part coated with a shielding film 5. Hereby, the projection tip aperture 6 has a ground surface which can be formed as optically smooth surface, and the aperture diameter can be controlled simply, inexpensively and highly accurately by adjustment of the grinding quantity. Resultantly, the aperture diameter can be controlled highly accurately.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004309817-A (JP)
Title: Electrochemical dimming element
Inventor: KUWABARA MIEKO
IPC: G02F1/15
Filed: 2003-04-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electrochemical dimming element capable of making titanium dioxide have a primary grain size and stabilizing its dispersion, and also obtaining a high contrast.  <P>SOLUTION: In an electrochemical dimming device which has a macromolecular electrolytic layer 4, containing a coloring material colored or discolored by electrochemical reduction or oxidation and deposition or dissolution accompanying it, held between a 1st electrode 1 and a 2nd electrode 5, the macromolecular electrolytic layer 4 contains at least titanium dioxide whose surface is treated with an organic substance.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004307303-A (JP)
Title: Ornamental plate and manufacturing method therefor
Inventor: MAEDA TAKANORI
IPC: B32B17/10
Filed: 2003-04-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ornamental plate such as laminated glass that can form free patterns, has variations in glitter and brightness depending on light angles and accomplishes resource-saving by recycling, and the like, without using reinforced glass newly prepared.  <P>SOLUTION: In the ornamental plate 1 having a medium member 3 inserted via an adhesive between two opposite transparent board materials, the medium member 3 is constituted as solid particles scattered in an arbitrary pattern. Thus, various patterns can be depicted because the solid particles are freely arranged and patterns are freely expressed. Therefore, the range of decorativeness is broadened and the designing properties are enhanced. The reflection of light is varied, and the glitter and the brightness are varied depending on the light angles by scattering the indeterminate solid particles. Consequently, patterns rich in variations are obtained depending on view angles.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2003305527-A (JP)
Title: Slotting method
Inventor: KANEMITSU TOSHIAKI
IPC: B21D53/26
Filed: 2003-04-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a slotting method capable of accurately and easily slotting a blank at an optional position in the plate thickness direction of an outer peripheral surface at the time of forming a rim or a boss of a sheet metal processed article such as a sheet metal made V-pulley having the rim, a sheet metal made brake shoe, slotted articles having a boss.  <P>SOLUTION: A blank accommodating recess portion 5 having a depth smaller than the plate thickness of the blank 1 is formed on the upper surface of a rotating bottom die 4 on which the disk-like blank 1 made of metal is mounted. A rotating upper die 3 is formed so as to have a smaller outside diameter than the outside diameter of the rotating bottom die 4 so that the upper surface of the outer peripheral portion of the blank 1 inside the blank accommodating concave portion 5 is exposed. The rims 20a, 20b or the boss 27 are shaped by slotting the outer peripheral portion into two in the plate thickness direction by rotating a slotting roller die 11 around an axis of the roller, by pressing a blade edge 12 in the outer peripheral portion of the slotting roller die 11 to the outer peripheral portion of the blank 1 projecting from the blank accommodating recess portion 5, and by moving the blade edge 12 in wards in the radial direction.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004318265-A (JP)
Title: Device for attaching electronic card
Inventor: TORII TAKASHI
IPC: G06K17/00
Filed: 2003-04-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device for attaching an electronic card, which can be used in common with many types of electronic cards of different thicknesses and realize a decrease not only in thickness but also in size.  <P>SOLUTION: The device for attaching the electronic card comprises a holder, which can rotate in an electronic main case and receives many types of electronic cards of different thickness; a guiding means, which substantially supports a rotating axis in a rotatable state and holds the rotating axis in a movable state for a predetermined distance in a direction of the thickness of the card received, and a holding spring, which biases the rotating axis toward the inside of the electronic device.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004313896-A (JP)
Title: Method and equipment for separate treatment of gypsum wall board
Inventor: KOBAYASHI SHOJI
IPC: B02C21/00
Filed: 2003-04-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method and equipment for separate treatment of gypsum wall boards by which gypsum wall boards discharged as construction waste is efficiently collected as separated matters of a gypsum component and a paper component, and each collected component can be effectively recycled.  <P>SOLUTION: In the method for separate treatment of gypsum wall boards, the gypsum wall boards are coarsely crushed, the crushed pieces are comminuted to separate into a gypsum component and a paper component. In the separation treatment method, the crushed pieces are further comminuted by an impact crusher 10, the obtained comminuted matter, in which the gypsum and paper components are mixed with each other, is separated into the gypsum component and the paper component by means of a pneumatic separator 20.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004323548-A (JP)
Title: Method for producing n-vinylcarboxamide polymer
Inventor: OKAYA TAKUJI
IPC: C08F26/02
Filed: 2003-04-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a high-molecular weight N-vinylcarboxamide polymer suitable for uses such as pressure-sensitive adhesives, thickeners and flocculants by polymerizing or copolymerizing an N-vinylcarboxamide monomer using a peroxodisulfate which is a usual polymerization initiator.  <P>SOLUTION: The method for producing the N-vinylcarboxamide polymer is carried out as follows. The peroxodisulfate is dropped into a polymerization liquid while controlling the pH of the polymerization liquid at 6-8 when the N-vinylcarboxamide is polymerized or copolymerized in an aqueous solution.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004322324-A (JP)
Title: Manufacturing method for ribbed pipe with branch pipe
Inventor: UEHARA KOJI
IPC: B29L23/00
Filed: 2003-04-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a ribbed pipe with a branch pipe having the branch pipe integrally formed thereto, capable of connecting the branch pipe or a pipe joint, which has a diameter almost same to that of the ribbed pipe, to the ribbed pipe.  <P>SOLUTION: A flat shape part 14 having a flat outer peripheral surface is formed to the periphery of the branch pipe forming part of the ribbed pipe 11 at the time of molding of the ribbed pipe 11 without forming ribs 12 and, after the ribbed pipe 11 including the flat shape part 14 is molded, the flat shape part 14 is protruded outward from the interior of the pipe so as to be formed into the shape of the branch pipe 16.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004327489-A (JP)
Title: Single-crystal silicon wafer and its manufacturing method
Inventor: TOBE TOSHIMI
IPC: H01L21/322
Filed: 2003-04-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a single-crystal silicon wafer that is made to have gettering ability even against slight amount of contaminations and can be applied to a device manufacturing process, and to provide a method of manufacturing the wafer.  <P>SOLUTION: The single-crystal silicon wafer has a structure constituted by successively laminating an intermediate layer and a silicon oxide film in this order on its rear surface. The solubility of the intermediate layer for heavy metal impurities is made larger than that of silicon and smaller than that of the silicon oxide film.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004324435-A (JP)
Title: Ignition device for internal combustion engine
Inventor: KATO HIDEYUKI
IPC: F02P13/00
Filed: 2003-04-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ignition device for an internal combustion engine capable of positively performing gas exchange between the inside of a plug hole and the outside of a cylinder head.  <P>SOLUTION: An ignition coil 3 has a coil flange part 4, and an annular sealing plate 1 is interposed between a lower face 41 of the coil flange part 4 and a peripheral edge 210 of an opening part 21. A gas passage allowing gas exchange between the inside of the plug hole 20 and the outside of the cylinder head 2 is provided between the coil flange part and the sealing plate. The gas passage is formed by providing an upper face 105 of the sealing plate 1 with a groove part formed along the circumferential direction, an outer passage leading to the outside of the cylinder head 2, and an inner passage leading to the inside of the plug hole 20, and bringing the sealing plate 1 and the coil flange part 4 into close contact. The total number of the inner passage and outer passage provided is three or more.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004326363-A (JP)
Title: Four-dimensional navigation object, four-dimensional navigation device, and four-dimensional control method of navigation object
Inventor: TANAKA MASAHARU
IPC: B64D45/00
Filed: 2003-04-23
Abstract: <P>PROBLEM TO BE SOLVED: To optimize movement of a four-dimensional navigation object which performs a complicated motion in fluid.  <P>SOLUTION: A searching unit 11 finds an optimized passing point to further optimize an evaluation function value under a restricting condition as an optimized solution in an area in the vicinity of a target point. As for midway points, a first midway point WP<SB>0</SB>and a second midway point WP<SB>1</SB>pointed on a side closer to a target point WP<SB>safe</SB>than the first midway point WP<SB>0</SB>. The search unit 11 finds an optimized passing point S1 to further optimize the evaluation function value as the optimized solution in a vicinity area of the second midway point WP<SB>1</SB>in the middle of moving of a navigation main body 101 from a current location Q to the first midway point WP<SB>0</SB>. The optimum solution is smoothly and flexibly found in the vicinity area.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004001093-A (JP)
Title: Forming die
Inventor: HARAGA YOSHIO
IPC: B21D28/36
Filed: 2003-04-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a forming die with which forming work is carried out by simple constitution by imparting the pressing force of a part of an elastic punch to a holder for holding and pressing a work to a female die when carrying out the forming work of the work along the recessed part of the female die by pressing and pressurizing the work with the elastic punch made of the elastic body.  <P>SOLUTION: In this forming die, when the forming work of a planar work 4 is carried out with the female die provided with the recessed part 33b having a desired shape and a male die corresponding to the female die and when the part to be worked of the work 4 is deformed along the shape of the recessed part 33b of the female die by providing the elastic punch 39 inside a cylindrical holder 37 provided on the male die, relatively compressing the elastic punch 39 by pressurization with a pressuring member 41, and projecting part of the elastic punch 39 from the holder 37, the holder 37 is pressed against the work 4 by the part of the elastic punch 39 and the forming work of the work 4 is carried out in the state where the work 4 is held and pressed between the male die and the holder 37.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004321594-A (JP)
Title: Game machine
Inventor: IIJIMA KO
IPC: A63F7/02
Filed: 2003-04-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a game machine which enables the game balls to flow down smoothly in a tank rail.  <P>SOLUTION: The game machine 1 has a storage tank 12 for storing the game balls and a gutter like tank rail 20 on which the game balls from the storage tank 12 flow down. The storage tank 12 is provided with an opening part 11 for ejecting the game balls below it, whereas the tank rail 20 is disposed below the opening part 11 to make the game balls ejected from the opening part 11 flow down thereon. An introduction adjusting means is also provided to adjust the amount of the game balls introduced onto the tank rail 20 from the opening part 11.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004323211-A (JP)
Title: Garbage feeding mechanism and garbage can
Inventor: NAKANO YOICHI
IPC: B01J4/00
Filed: 2003-04-25
Abstract: <P>PROBLEM TO BE SOLVED: To reduce the occurrence of trouble produced when undue force is applied to an opening/closing mechanism through a garbage charging part.  <P>SOLUTION: This garbage feeding mechanism comprises a rotary drum 30 feeding garbage from the inlet 25 of the garbage into a garbage storage part by rotating. The rotary drum 30 is supported rotatably by a driving roller 40 in contact with the peripheral surface of the rotary drum. When the rotation of the rotary drum 30 is stopped by any reason, even if a user applies a forcibly rotating force thereto, the rotating drum 30 slips on the drive roller 40 and rotates alone. Accordingly any undue force is not applied to the motor 50 driving the drive roller 40, and the frequency of troubles can be reduced.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004333610-A (JP)
Title: Flat display device
Inventor: UMEDA TAKAO
IPC: H05B33/14
Filed: 2003-05-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide a flat display device in which a visual field angle is increased and the deterioration of display quality such as abnormality in color tones is not generated in a peripheral part.  <P>SOLUTION: In the flat display device provided with a quadrangular display surface and forming a non-display part on the peripheral part, a light quantity ratio of light passing through an optical path between RGB colors forming a pair of pixels existing on the outermost peripheral part and an observer and a light quantity ratio of light passing through an optical path between RGB colors forming a pair of pixels existing on the inside of the outermost peripheral part and the observer are set to the same value by controlling the width of the non-display part of the outermost peripheral part, the thickness of a front plate and the refractive index of the front plate to control a viewing angle.  <P>COPYRIGHT: (C)2005,JPO&NCIPI