baber/WOPTO huggingface dataset:
Patent JP-2004137375-A (JP)
Title: Modified polyolefin
Inventor: WAKABAYASHI HIDEAKI
IPC: C08F8/00
Filed: 2002-10-17
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a modified polyolefin by further modifying a polyolefin whose terminal(s) is modified with a specific active hydrogen group with a compound such as a (meth)acrylic acid derivative or styrene derivative.  <P>SOLUTION: The modified polyolefin is such one that units derived from the compound such as a (meth)acrylic acid derivative or styrene derivative of the general formula(B) or (C) and units derived from a dicarboxylic acid or dicarboxylic acid anhydride are grafted to the polyolefin whose terminal(s) is modified with the active hydrogen-containing group of the general formula(A) or (D). The number-average molecular weight(Mn) of this modified polyolefin is 1,000-500,000.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004138896-A (JP)
Title: Sheath material for optical fiber and optical fiber
Inventor: KAWARADA YASUSHI
IPC: G02B6/00
Filed: 2002-10-18
Abstract: <P>PROBLEM TO BE SOLVED: To improve the stability/reproducibility of transmission characteristics of an optical fiber by stably controlling the transmission losses of a sheath material within a desired range in widening the frequency band of the optical fiber.  <P>SOLUTION: The sheath material of the optical fiber contains a light absorbent in having a core material-sheath structure, in which the transmission loss (a) [dB/km] by absorption of the light absorbent among the transmission losses satisfies a relation 100<a<100,000 and the transmission loss (b) [dB/km] by other factors satisfies 10<b<2,900. As a result, the stability/reproducibility of transmission characteristics of the optical fiber are improved by stably controlling the transmission losses of the sheath material within the desired range in widening the frequency band of the optical fiber.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004138002-A (JP)
Title: Fuel filter device
Inventor: HIRAIWA AKIRA
IPC: F02M37/22
Filed: 2002-10-18
Abstract: <P>PROBLEM TO BE SOLVED: To solve a problem that the manufacturing cost is increased to surely prevent a backflow of fuel by providing a commercially available manual opening/closing valve and solenoid opening/closing valve at two places of (1) a halfway part of a bypass circuit which communicates with a fuel pressure-feeding route from a fuel tank to a fuel filter device, and a fuel return route from a fuel injection pump to the fuel tank, and (2) a halfway part of the fuel pressure-feeding route from the fuel filter device to the fuel injection pump in the fuel filter device.  <P>SOLUTION: The fuel filter device 4 is interposed in the fuel pressure-feeding route between the fuel tank 2 and the fuel injection pump 5. The fuel filter device 4 is provided with a backflow prevention valve 17 equipped with a ball 20 of spherical valve element, a valve chamber 19 housing the valve element, and a valve seat 18 formed on a valve chamber end part in the fuel pressure-feeding route between the fuel filter device and the fuel injection pump.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004140292-A (JP)
Title: Forming method of dielectric film
Inventor: TAKAHASHI TAKESHI
IPC: H01L29/78
Filed: 2002-10-21
Abstract: <P>PROBLEM TO BE SOLVED: To minimize the roughness of a surface of a formed high dielectric film, in a method for forming the high dielectric film by an MOCVD method.  <P>SOLUTION: First, an organic metal compound raw material of the high dielectric film is supplied to a surface of a substrate to be processed, under a condition where a residence time of the organic metal compound raw material in a processing vessel becomes relatively long, to form a crystal nucleus of high area density on the surface of the substrate to be processed. Then the organic metal compound raw material is supplied under the conditions where the residence time becomes relatively short.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004139535-A (JP)
Title: Information storing device and string length body equipped with the same
Inventor: NAKAYAMA HIROTETSU
IPC: G06K19/00
Filed: 2002-10-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide an identifying means of a string length body (various types of cables and tubes or the like) which easily, reliably, and accurately identifies, and maintains the reliability and the accuracy of the identification for a long time.  <P>SOLUTION: An information storing device disposes two or more information storage elements which can write and read data along the longitudinal direction of a long spindly substrate, connects these information storage elements on the substrate by a communication line or a wire wired along the longitudinal direction, and conducts either or both simultaneous read or/and simultaneous write of the data to two or more information storage elements. The device is set either or both outside or/and inside of the string length body.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003162962-A (JP)
Title: Plasma display panel and manufacturing method therefor
Inventor: AOKI MASAKI
IPC: H01J11/38
Filed: 2002-10-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a PDP which is capable of displaying images having high brightness and high quality by preventing yellowing of a panel in PDP using silver electrodes with relatively simple techniques.  <P>SOLUTION: When a silver electrode of a PDP is formed by means of a thick-film forming method, silver paste containing glass-frits, in which Ag particles and an oxide transition metal (containing more than one of oxide copper (CuO), oxide chromium (Cr<SB>2</SB>O<SB>3</SB>), oxide nickel (NiO), oxide manganese (Mn<SB>2</SB>O<SB>3</SB>), oxide cobalt (Co<SB>2</SB>O<SB>3</SB>), and oxide iron (Fe<SB>2</SB>O<SB>3</SB>) are added, or a silver film is used. As a result, the silver electrode film, of which the silver particles are sintered with a glass which contains the oxide transition metal, is formed.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004145590-A (JP)
Title: Community formation support method and system
Inventor: NOYAMA HIDEO
IPC: G06Q50/00
Filed: 2002-10-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a system and a method that can promote the formation of a community of more participants by providing useful information for participants who want to participate in a community.  <P>SOLUTION: The method receives an order volume as a condition of participation in a group purchasing community from a computer device of a coordinator, receives participation application information from a computer device of a participant who wants to participate in the group purchasing community, compares the location of the coordinator and the location of the participant both registered in advance to compute time for the participant to go to the address of the coordinator to get merchandise, and transmits the order volume necessary in the group purchasing community and the time information to the computer device of the participant.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003203481-A (JP)
Title: Delay locked loop circuit having adjustable locking resolution using cas latency
Inventor: HEO NAK WON
IPC: G11C11/4076
Filed: 2002-10-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a delay locked loop circuit having a wide locking range without increasing the number of a unit delaying device and in which a locking cycle time can be decreased.  <P>SOLUTION: This circuit is provided with a delay line, a phase detector, a control circuit, a mode register set, and a unit delay time adjustment circuit. The delay line comprises many unit delay devices connected in series and delay an external clock signal. The phase detector detects phase difference between the external clock signal and an internal clock signal outputted from the delay line. The control circuit generates a control signal responding to an output signal of the phase detector. The mode register set outputs a CAS latency signal. The unit delay time adjusting circuit is connected to each unit delay device and comprises many programmable delay elements lengthening a delay time of each unit delay device responding to the CAS latency signal. The control circuit is constituted of many stages, and comprises a shift register outputting the control signal from an output terminal of each stage.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004146614-A (JP)
Title: Magnetoresistance effect element and magnetic memory device
Inventor: HOSOMI MASAKATSU
IPC: H01L21/8246
Filed: 2002-10-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a magnetoresistance effect element which can effectively reduce a coercive force Hc and its fluctuation, and can obtain a superior asteroid curve, and to provide a magnetic memory device MRAM including the magnetoresistance effect element as a memory device.  <P>SOLUTION: This magnetoresistance effect element is composed based on a found fact that the fluctuation of the coercive force Hc considerably depends on the shape of the magnetoresistance effect element or a memory element. Namely, in the magnetoresistance effect element, at least a pair of ferromagntic layers 5, 7 are laminated by interposing an inner layer 6 so as to be opposed to each other, and by conducting a current in the direction perpendicular to laminated faces, a change of magnetoresistance can be obtained. Since the thickness of the peripheral part of the information recording layer or ferromagntic layer 7 is thinner than the thickness of the central part, the pinning effect of magnetization by the peripheral part can be reduced.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004141941-A (JP)
Title: Circuit board soldering flux, soldering paste and circuit board
Inventor: OGAWA SHIGEKI
IPC: B23K35/22
Filed: 2002-10-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide flux and soldering paste which can improve solderability owing to good wetting by fused solder even in the case of using unleaded solder which is higher in fusing temperature than leaded solder and is more apt to deteriorate solderability than the leaded solder in soldering electronic parts to a circuit board.  <P>SOLUTION: The circuit board soldering flux to be used in soldering the electronic parts to the circuit board is made to contain a urea compound such as urea. The circuit board soldering paste is made to contain the flux. The circuit board before or after mounting the electronic parts is made to have a residue film after soldering.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004146737-A (JP)
Title: Power module substrate, and power module
Inventor: NAGATOMO YOSHIYUKI
IPC: H01L23/36
Filed: 2002-10-28
Abstract: <P>PROBLEM TO BE SOLVED: To restrict deformation irrespective of the difference between thermal expansion coefficients of both of an insulating substrate and a heat radiator, and further suppress the lowering of thermal conductivity.  <P>SOLUTION: In the power module substrate 10 including a circuit layer 12 provided on the upper surface of the insulating substrate 11 and the heat radiator 16 provided on the lower surface of the insulating substrate 11, a low thermal expansion member 18 is laminated on a radiator body 17 of the heat radiator 16, and the low thermal expansion member 18 is made of a material having the quality of a low thermal expansion coefficient than that of the radiator body 17, for example invar alloy. In the low thermal expansion member 18, there is provided a stepped portion 20 in the direction of the thickness of a region facing the insulating substrate 11. A disposition position of the stepped portion 20 in the direction along the stepped portion 20 and in the direction along the lamination is determined by the disposition position in the direction along the surface of the insulating substrate 11 and a difference between the thermal expansion coefficients of the insulating substrate 11 and the radiator 16.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004149812-A (JP)
Title: Method for producing cold-rolled steel sheet having fine grain structure and excellent fatigue characteristic
Inventor: KAGEYAMA MASAYUKI
IPC: C22C38/58
Filed: 2002-10-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high tension cold-rolled steel sheet having fine grain structure and excellent mechanical characteristics, particularly, fatigue characteristic.  <P>SOLUTION: After heating a steel blank containing in the ranges satisfying the following inequlities (1), (2), (3) respectively, particularly C, Si, Mn, Ni. Ti and Nb in the steel components to ≥1,200°C, hot-rolling is completed at ≥ Ar<SB>3</SB>point. Successively, this steel is wound up in the temperature range from 650 to 750°C and after pickling, the cold-rolling is applied. Thereafter, recrystallizing annealing is applied at predicted value temperature of A<SB>3</SB>to (A<SB>3</SB>+ 30)(°C) and then, the annealed steel is cooled to predicted value temperature A<SB>1</SB>+ 50°C at ≥5°C/s cooling speed and successively, after holding it for ≥ 60 sec in the temperature range of (A<SB>1</SB>+ 50) to (A<SB>1</SB>+ 20)°C, this steel is cooled at least to Ms point at rate of ≥ 3°C/s. The inquality (1) is : 637.5 + 4930(Ti<SP>*</SP>+ (48/93) × [%Nb]) > A<SB>1</SB>, wherein Ti<SP>*</SP>is used as effective Ti content for precipitating TiC. The inquality (2) is : A<SB>3</SB>< 860. The inquality (3) is : [%Mn] + [%Ni] ≥ 1.3.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004152618-A (JP)
Title: Lighting device
Inventor: ISHII TAKASHI
IPC: F21Y101/02
Filed: 2002-10-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide lighting devices cable of being easily attached at any intervals along a corridor or stairs of a family house or a hospital, and a rail or the like set above, and illuminating brightly around feet with extremely little power consumption even when regular lights of a corridor or the like are switched off during the night for power saving, so that, a direction of the corridor, a position, a height and a direction or the like of a rail can be recognized.  <P>SOLUTION: The lighting device is equipped with a substrate 2 attached with a light-emitting diode 6 and some necessary electronic parts 8 and with a circuit necessary for lighting the light-emitting diode 6 formed, a substrate carrier 3 structured to hold the substrate with a given irradiation angle, a base 4 structured fixably holding the substrate carrier, and a cover 5 structured attachably to the base 4 in a way covering the substrate 2 and the substrate carrier 3, and transmitting light generated from the light-emitting diode 6.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004148690-A (JP)
Title: Image forming apparatus
Inventor: ENDO YOSHINORI
IPC: B41J11/00
Filed: 2002-10-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus in which causes of error can be analyzed readily.  <P>SOLUTION: Detection signals of various sensors 58, an output signal to a working member 57 and error detection results are stored, in time series, in the ring buffer 73 of an RAM 55 according to a memory control program every time when a variation takes place. The information stored in the ring buffer 73 is outputted to a PC 74, for example, by an output program. Since detection signals of the various sensors 58 until occurrence of an error, and the record of output signals to the working member 57 can be confirmed on the CRT of the PC 74, causes of error can be analyzed readily.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004148390-A (JP)
Title: Die for die casting and casting apparatus for die casting provided with die for die casting
Inventor: MIZUKUSA YASUYUKI
IPC: B22D17/22
Filed: 2002-10-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a die for die casting and a casting apparatus for die casting provided with the die for die casting with which a formed body is easily separated from a core when the core is shifted in the direction crossing the shifting direction of a movable die after die-opening the die for die casting composed of the movable die and a fixed die.  <P>SOLUTION: The die 1 for die casting, is provided with the fixed die 10, the movable die 20 and the core 30. The core 30 is shiftable in the direction crossing to the shifting direction of the movable die 20 and a part thereof is demarcated with a sprue 1b communicating with a cavity 1a. In the portion demarcated with the sprue 1b in the core 30, a pushing pin 31 with its tip part to be advanced/retreated to/from a runner at the tip part is arranged. The energizing force by a compressed spring 32 is acted to the pushing pin 31 and this pushing pin is retreated with casting pressure at the casting time, and shifted toward the sprue formed as the runner at the die-opening time after casting to separate the formed product 2 stuck to this portion of the core 30.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003157450-A (JP)
Title: Field angle automation system
Inventor: HIRABAYASHI MASAHIDE
IPC: G06T17/40
Filed: 2002-11-01
Abstract: PROBLEM TO BE SOLVED: To carry out automation of a field angle in three-dimensional computer graphics. SOLUTION: The field angle is automatically decided by a means giving an object occupation ratio to a formation screen instead of the field angle and deciding the field angle taking the given object occupation ratio. In this way, the field angle is automatically decided in a condition that a view point and a gazing point are fixed. By a combination with automation of the gazing point, laborious work can be dispensed with. For example, when the view point advances along a fixed path in an animation, a camera is automatically turned toward the object, and an image can be formed while automatically setting the field angle. As the range of the field angle can be designated, automatic simulation of an actual camera zoom lens can be carried out.
Patent JP-2003147486-A (JP)
Title: High-strength cold rolled steel sheet
Inventor: SUZUKI YOSHITSUGU
IPC: C22C38/00
Filed: 2002-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a high-strength cold rolled steel sheet free from the occurrence of 'bare spots' at hot dipping and 'nonuniform alloying' with alloying after plating and having excellent hot-dip platability and alloying ability after plating by devising the base material of a steel sheet. SOLUTION: The high-strength cold rolled steel sheet has oxides effective for the improvement of the above hot-dip platability, etc., in the grain boundary and/or crystal grain of the surface layer of the high-strength cold rolled steel sheet containing 0.1 to 3.0 wt.% Si.
Patent JP-2004158615-A (JP)
Title: Semiconductor laser device
Inventor: NISHIGUCHI HARUMI
IPC: H01S5/22
Filed: 2002-11-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a means for forming a striped convex area without any problem on an upper clad of a semiconductor laser device and suppressing or preventing spread of optical distribution toward the upper clas layer.  <P>SOLUTION: In the semiconductor laser device, an n-AlGaInP clad layer 2, an AlGaInP/GaInPMQW active layer 3, a p-AlGaInP first clad layer 4, a single layer of p-Al<SB>x</SB>Ga<SB>1-x</SB>As-BSL5, a p-AlGaInP second clad layer 7 including a striped convex portion 6, and a p-GaAs contact layer 8 are laminated in this sequence on an n-GaAs substrate 1. The part other than the striped convex portion 6 of the p-AlGaInP second clad layer 7 is covered with an insulation film 9. The refractive index of the p-Al<SB>x</SB>Ga<SB>1-x</SB>As-ESL5 is almost equal to that of each clad layer 2, 4, and 7.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004156714-A (JP)
Title: Article supporting leg
Inventor: KUMASHIRO TERUO
IPC: A47B91/02
Filed: 2002-11-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an article supporting leg having rigidity to stably support an article, easily absorbing various loads such as impact and vibration, with simple structure, and manufacturable at low cost.  <P>SOLUTION: This article supporting leg comprises a bolt 1 comprising a male screw rod part 11 to be engaged with a supporting object W to be supported, a turning device engagement part 12, and a lower protruded shaft part 13, integrally formed in this order, an upper base member 3 engaged with the lower protruded shaft part 13 to support the turning device engagement part 12 through a thrust bearing 2, a coming-off preventing ring 4 to prevent coming-off of the base member 3 from the lower protruded shaft part 13, a lower base member 5 disposed under the base member 3, and a cushion member 6 connected between the upper and the lower base members 3 and 5. The cushion member 6 is formed of elastic material, and it includes a main part 61 including a liquid storage chamber 60, and oil 62 stored in it.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004159173-A (JP)
Title: Foldable mobile electronic instrument
Inventor: KUBO TETSUYA
IPC: H04W88/02
Filed: 2002-11-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a foldable mobile electronic instrument in which wiring and assembling work of various electronic parts to be stored in one enclosure can be easily carried out and the various electronic parts can be easily repaired and inspected, and which is suitably made thin.  <P>SOLUTION: The foldable mobile electronic instrument comprises an upper casing 1 wherein various electronic parts 7A, 7B, 7C, and 8 including first and second LCDs 41 and 42 are stored, a lower casing wherein a main substrate having a battery and a control part mounted therein is stored, a hinge part for freely turnably coupling these casings, a unit substrate 5 provided in the upper casing 1, and a flexible substrate 6 having a mounting part 6A where various electronic parts 7A, 7B, 7C, and 8 are detachably attached in the upper casing 1 via holders and are held on the unit substrate 5 in a stacked state and a connection part 6B which is led out from the mounting part 6A and is connected to the battery in the lower casing via the inside of the hinge part.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004155146-A (JP)
Title: Optical film, its manufacturing method, polarizing plate and display device using the same
Inventor: MURAKAMI TAKASHI
IPC: C08J7/00
Filed: 2002-11-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical film and its manufacture method by which defects in a stripe form can be reduced and a uniform metal compound layer can be formed, furthermore to provide an optical film which has small physical property variation under high temperatures and high humidity and eliminates need for a vacuum process, enabling a great cost reduction.  <P>SOLUTION: This optical film has a metal compound layer which is formed by a plasma treatment directly or via another layer, on a cellulose ester film containing an ester of cellulose and an aromatic carboxylic acid, under a gas atmosphere near the atmospheric pressure containing mainly nitrogen.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004163134-A (JP)
Title: Pressure sensor, pressure measuring apparatus, and pressure measurement system using them
Inventor: TAMAI SEIICHIRO
IPC: G08C17/02
Filed: 2002-11-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pressure measurement system using a pressure detection sensor that has a simple configuration and is inexpensive and a pressure measuring apparatus.  <P>SOLUTION: The pressure measurement system 1 comprises the pressure sensors 50a-50d and the pressure measuring apparatus 10. The pressure sensors 50a-50d are composed as a radio tag having a resonance circuit, where a resonance frequency changes depending on pressure. The pressure measuring apparatus 10 detects the resonance frequency of the resonance circuit and specifies the pressure of the radio tag, based on the detected resonance frequency, by transmitting or receiving radio waves to and from the pressure sensors 50a-50d.  <P>COPYRIGHT: (C)2004,JPO