baber/WOPTO huggingface dataset:
Patent JP-2001263456-A (JP)
Title: Drive shaft support bearing device
Inventor: FURUKAWA KEIICHI
IPC: F16H57/021
Filed: 2000-03-17
Abstract: PROBLEM TO BE SOLVED: To provide a drive shaft support bearing preventing the service life and performance of the bearing from being influenced by the distortion of a housing fitted to an outer ring. SOLUTION: This drive shaft support bearing device is so constituted that an inner ring of a sealed rolling bearing is mounted to a drive shaft and that the housing formed with a radial flange fixed to a support body is fitted to the outer peripheral surface of an outer ring. In this constitution, the housing and the outer ring 3 are integrally formed.
Patent JP-2001262203-A (JP)
Title: High hardness gas atomizing shot
Inventor: OZAKI KOZO
IPC: C22C38/00
Filed: 2000-03-22
Abstract: PROBLEM TO BE SOLVED: To provide high hardness gas atomizing shots in which the average hardness and dispersion are equal to those of powder for powdery high speed tool steel for gas atomizing subjected to blasting or tempering as a dummy even as gas-atomized, i.e., the average hardness is >=850 HmV, and moreover, the dispersion of the hardness is <=50 HmV by a standard deviation and used for blasting such as shot peening. SOLUTION: This high hardness gas atomizing shots have a componential composition containing, by weight, 0.9 to 3.5% C, 0.02 to 1.00 % Si, <=0.40% Mn, 2.0 to 6.0% Cr,<=8.0% Mo, 5.0 to 30.0% W, 4.0 to 8.0% V and 5.0 to 15.0% Co, and the balance Fe with inevitable impurities, and in which the average hardness as gas-atomized is >=850 HmV, and further, the dispersion of the hardness is <=50 HmV by a standard deviation.
Patent JP-2000307031-A (JP)
Title: Double side electrical interconnection flexible circuit board
Inventor: ABBOTT DONALD C
IPC: H01L23/498
Filed: 2000-03-22
Abstract: PROBLEM TO BE SOLVED: To obtain a flexible circuit board requiring no high cost deposition process nor repetitive laser boring process by providing a plurality of corresponding conductive vias at the positions on the surface of the flexible circuit where conductors are interconnected thereby minimizing specific tools required for designing the circuit. SOLUTION: The flexible circuit has a plurality of reliable conductive vias 201 for interconnecting conductors 208 on the first plane of a flexible dielectric film 205 with a plurality of solder ball contact pads 206 existing on the second plane of the conductors 208. From an inverted copper film segment 202 extending from a via 201, a unique offset is generated in the solder ball contact pad 206 and copper 203 to be plated fills the space between a copper film and a conductor on the first plane. The copper film segment 202 is fixed the second plane of the dielectric film 205 and the solder ball contact pad 206 is positioned. The recessed pads 201 are suitable for arranging the solder balls.
Patent JP-2000338389-A (JP)
Title: Method and system for optical object distance detection and imaging
Inventor: ALMAJED ZEYAD
IPC: G01S17/04
Filed: 2000-03-22
Abstract: PROBLEM TO BE SOLVED: To make low-cost, small-sized, and simple the system which optically detects and images the distance to an object. SOLUTION: This system is a system which optically detects the distance to the object 14 and images it in three dimensions. For only distance detection, a single optical detector 18 detects reflected light from the object irradiated alternately by a couple of stroboscopic light sources L1 and L2 or a single light source which emits flash light directly or as a virtual image. The ratio of illumination between the direction light source and the light source of the virtual image is calculated by subtracting ambient light from the output signal of the optical detector as to each irradiating light and the distance to the object is determined according to the ratio. When the object is imaged, an array of optical detectors is used and the calculated distance is mapped by using the coordinates of the optical detectors to obtain a three-dimensional image.  This system is applicable to a passenger detection sensor for a vehicle equipped with a passenger protection air bag system.
Patent JP-2001270547-A (JP)
Title: Packaging container
Inventor: KISHIDA KOJI
IPC: B65D53/08
Filed: 2000-03-23
Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive packaging container whose contents and pressure-sensitive adhesive layer provided on a cover open/close label do not contact and adhere as to a packaging container to whose container main body, taking out opening a cover open/close label having a pressure-sensitive adhesive layer is adhered for freely opening and closing the opening for taking out the contents. SOLUTION: This packaging container comprises a container main body having a taking out opening and a cover open/close label adhered covering the opening. The label is structured freely peelable relative to the container main body by a pressure-sensitive adhesive layer provided wholly on one of its faces. On the side where the adhesive layer touches in the opening of the main body, a sheet which is larger than the opening and has on at least one face side an exposed face structured to be left in the main body when the label is opened is provided with the exposed face being positioned on the adhesive layer side.
Patent JP-2001264567-A (JP)
Title: Method of manufacturing optical circuit
Inventor: ABE ATSUSHI
IPC: G02B6/12
Filed: 2000-03-23
Abstract: PROBLEM TO BE SOLVED: To provide an optical circuit with low loss which has high stability and reliability and a function to separate polarized waves, which can be easily manufactured and which is inexpensive. SOLUTION: The optical circuit has optical waveguides 12a, 12b, 12c, 12d each consisting of a core part produced from quartz as the main material where the light propagates and a clad around the core and having a lower refractive index than the core on a planar substrate 11. The optical circuit is composed of optical couplers 14, 15, arm waveguides 16, 17 connected in series with the optical couplers 14, 15, and a Mach-Zehnder interferometer consisting of the optical couplers 14, 15, all formed by the optical waveguides 12a, 12b, 12c, 12d. In the method of manufacturing the circuit, two or more position in the two arm waveguides 16, 17 in the Mach-Zehnder interferometer circuit are irradiated with light in the UV region or visible region in such a manner that the irradiated areas have different widths.
Patent JP-2001261886-A (JP)
Title: Rubber composition and pneumatic tire
Inventor: TAKIMURA MAMORU
IPC: C08K3/04
Filed: 2000-03-23
Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition having improved processability while maintaining low heat build-up, good fracture characteristics and low temperature properties at the natural rubber level, and a pneumatic tire to which the rubber composition is applied. SOLUTION: The rubber composition comprises a rubber component composed of (A) 10-30 pts.wt. styrene/butadiene copolymer rubber and (B) 90-70 pts.wt. natural rubber, and the styrene/butadiene copolymer rubber as component (A) being a copolymer rubber by solution polymerization which, at the same time, has an amount of bonded styrenes of 4-8 wt.% and a content of vinyl bonds in the remaining butadiene portions of 25-40%, and the pneumatic tire has a belt insulation rubber or the like to which this rubber composition is applied.
Patent JP-2001271363-A (JP)
Title: Underwater concrete structural body and its construction method
Inventor: SOGO SHIGEYUKI
IPC: E02B3/06
Filed: 2000-03-23
Abstract: PROBLEM TO BE SOLVED: To provide an underwater concrete structural body and its construction method capable of ensuring both qualities of weight reduction efficiency, strength or the like. SOLUTION: The underwater concrete structural body is constituted of a light precast concrete block 11 placed in an underwater casting area and grout filling the circumference of the light precast concrete block and a space between both blocks.
Patent JP-2001262262-A (JP)
Title: Aluminum alloy for casting and heat treating method therefor
Inventor: SHIGEIZUMI TAKESHI
IPC: F02M35/104
Filed: 2000-03-21
Abstract: PROBLEM TO BE SOLVED: To provide an aluminum alloy for casting having excellent strength and toughness and hardly deteriorating strength and toughness in the high temperature environment and to provide a heat treating method therefor. SOLUTION: A cast body haing a chemical composition containing, by weight, 0.5 to 1.5% Cu, 0.3 to 0.7% Mg and 6.5 to 7.5% Si, and the balance Al is subjected to stabilizing treatment to control its tensile strength to >=320 MPa, and elongation to >=5%. Moreover, the aging treatment temperature of the stabilizing treatment is controlled to 200 to 300 deg.C, preferably, to 220 to 260 deg.C, and the aging treatment time of the stabilizing treatment is controlled to be longer than the aging treatment time capable of obtaining the maximum strength.
Patent JP-2001271401-A (JP)
Title: Water saving device for flush toilet stool
Inventor: KOBAYASHI HIROAKI
IPC: E03D1/35
Filed: 2000-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a water saving device for a flush toilet stool capable of reducing a water amount of the flush toilet stool easily without exchanging or machining parts in a low tank. SOLUTION: A boltlike basic body 110 is provided with a through hole 111 of a central shaft and a cutout part 112 for introducing a float valve pulling-up chain into the through hole 111. The basic body 110 is used in such a way that a flange shape is a bottom part and a screw-fitting part is positioned above. A cutout part 121 corresponding to the cutout part 112 of the basic body is provided in an overlapping member 120. When a water saving device 100 is attached.the predetermined number of overlapping members 120 are mounted on the basic body 110 in advance to introduce the chain into the through hole 111 through the cutout parts while positions of respective cutout parts 121 are matched with the cutout part 112 of the basic body. Then, the overlapping members 120 are screwed in and locked.  A screw is cut so that the cutout parts 121 of the overlapping member do not coinside with the position of the cutout part 112 of the basic body.
Patent JP-2001279537-A (JP)
Title: Precursor fiber bundle for producing carbon fiber and method for producing the carbon fiber
Inventor: YAMANAKA SHUICHI
IPC: D01F6/18
Filed: 2000-03-27
Abstract: PROBLEM TO BE SOLVED: To obtain a precursor fiber bundle for producing a carbon fiber scarcely causing an end breakage and generation of a fuzz and capable of providing a tow in a form easy to handle in a production process of the carbon fiber. SOLUTION: This precursor fiber bundle for producing the carbon fiber has a coefficient of dynamic friction between fiber and fiber within the range of 0.05-0.30, number of crimp within the range of 4 ridges per 25 mm to 12 ridges per 25 mm and degree of crimp within the range of 4-17%.
Patent JP-2001272495-A (JP)
Title: Reactor power monitor
Inventor: IZUMI MIKIO
IPC: G21C17/108
Filed: 2000-03-27
Abstract: PROBLEM TO BE SOLVED: To ensure the performance of startup range monitor detector even in the case the startup range monitor detectors are integrated in a detector assembly tube by thinning and prolonging. SOLUTION: A detector assembly tube 3 containing inside a local, power range monitor detector 4, a startup range monitor detector 5 and a calibration means 6, a startup range monitor surveillance device 7 for measuring the power of the startup range monitor detector 5 and watching reactor power and a local power range are provided. The startup range monitor detector 5 is provided with a plurality of electrode pairs having an anode and a cathode and insulation holding members for holding the gap between the two electrodes in a specific gap and insulating between both electrodes and with en electrode connection means for connecting these electrode pairs.
Patent JP-2000338148-A (JP)
Title: Electronic watthour meter
Inventor: TAKAHASHI KATSUHIKO
IPC: H03H17/02
Filed: 2000-03-27
Abstract: PROBLEM TO BE SOLVED: To provide a watthour meter of high accuracy and simple circuit structure by low-pass filtering ab AC current and AC voltage quantized by a sigma delta modulating circuit, thinning them with a predetermined ratio by a thinning means, and then determining an electric power value by multiplying the same. SOLUTION: An AC current (i) and an AC voltage (v) are respectively integrated by an integrator, and the digital values are output through a comparator. Sigma delta modulating circuits 10, 11 delay the outputs, convert digital values into analogue values, and feedback the same to an input side of the integrator to quantize the AC current and the AC voltage. Then the AC current and the AC voltage as input signals are low-pass filtered by digitals LPF 12, 13, and a quantized sampling value array of the AC current and the AC voltage is thinned by a ratio of 1/m (m: arbitrary positive :integer) by thinning means 141, 151, 161, 171. The thinned AC current I and AC voltage V are multiplied by a multiplier 20 to determine an electric power value, and the power source value determined by a counter is integrated. Whereby a circuit can be simplified and a monolithic circuit can be obtained.
Patent JP-2001271675-A (JP)
Title: Vibration reducing device for internal combustion engine
Inventor: ASAHARA YASUYUKI
IPC: F16F15/02
Filed: 2000-03-28
Abstract: PROBLEM TO BE SOLVED: To provide a vibration reducing device for an internal combustion engine, for effectively reducing rotation fluctuation of an engine rotary shaft. SOLUTION: In the vibration-reducing device for the internal combustion engine, having an alternator rotary shaft 18 driven from an engine rotary shaft 4 via a rubber layer, an antiresonance frequency of rotation fluctuation of the engine rotary shaft 4 generated, according to the resonance of the rubber layer and the alternator rotary shaft 18 is substantially agrees with any one of frequencies that a rotation frequency of the engine rotary shaft 4 is multiplied by (natural number/2) in a prescribed operation state operated by substantially constant rotation of the operation states of an engine 2.
Patent JP-2001273655-A (JP)
Title: Objective lens driving device for optical pickup
Inventor: KONO NORIYUKI
IPC: G11B7/09
Filed: 2000-03-29
Abstract: PROBLEM TO BE SOLVED: To make the center of gravity of a movable part coincide with the center of the actual driving force. SOLUTION: A focus coil 33f and tracking coils 33t are mounted on a coil base 31 with their center positions coincided with each other in the coil thickness direction; and, the focus coil 33f is arranged in the magnetic gap 5g of a magnetic circuit containing one magnet which is magnetized in two poles in the focus direction F.
Patent JP-2001186348-A (JP)
Title: Pulse width modulation circuit, optical writer and image forming device
Inventor: ISHIDA MASAAKI
IPC: G06K15/12
Filed: 2000-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a pulse width modulation circuit capable of solving a problem that the linearity/reproducibility of a triangle wave or a tooth-shaped wave is not consistent with acceleration of an operating speed and that the gradation of an image is not consistent with acceleration of the operating speed. SOLUTION: The circuit is provided with an analog delay 15 of a fast analog delay circuit constitution having a signal generation means for generating a clock signal to be a reference and a signal inversely proportional to a digital data input signal and a delay quantity generation means for desirably phase- delaying the clock signal based on the signal inversely proportional to the digital data input signal from the signal generation means, a delay quantity control means 16 for controlling the delay quantity of this part 15 and a modulation signal generating means 17 for generating a modulated signal given pulse width modulation from a pulse and the clock signal from the part 15. Thus the circuit can cope with the case of a high operating speed and can realize the high gradation of an image, etc.
Patent JP-2001278856-A (JP)
Title: Method for producing 1-(phenylsulfonyl)-4-[(tribromomethyl)sulfonyl]benzene
Inventor: NISHIGUCHI HIDEAKI
IPC: B01J23/04
Filed: 2000-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a method for industrially advantageously producing 1-(phenylsulfonyl)-4-[(tribromomethyl)sulfonyl]benzene. SOLUTION: This method for producing 1-(phenylsulfonyl)-4[(tribromomethyl) sulfonyl]benzene of formula (2) is characterized by oxidizing and brominating 1-(methylthio)-4-(phenylsulfonyl)benzene of formula (1).
Patent JP-2001283721-A (JP)
Title: Substrate with protrusion and flat panel display
Inventor: KATO MASAFUMI
IPC: H01J31/12
Filed: 2000-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a flat panel display capable of easily lowering an impure gas content found within the display and easily manufactured and a substrate with a protrusion suitable for it. SOLUTION: Such a flat panel display as a field emission display(FED) or the like is manufactured in a way that between two substrates of a back face plate 2 and a front face plate 3 formed in parallel with a certain distance, a matrix containing a glass and/or ceramics and a plural number of spacers (protrusion) 4 composed of a composite materials comprising at least one kind of metal selected from a group of chromium, molybdenum, iron, silicon, zirconium, zinc, copper, aluminum and tin, in dispersion in the matrix, are assembled.
Patent JP-2001281097-A (JP)
Title: Method and apparatus for measuring scattered light
Inventor: MURAKAMI ATSUNOBU
IPC: G01M11/00
Filed: 2000-03-28
Abstract: PROBLEM TO BE SOLVED: To reduce detected light quantity by multiply reflecting a light scattered at a simple on an integral sphere inside wall. SOLUTION: First invention is a method of measuring a scattered light on an optical material and an optical thin film, comprising a conversion step of converting the scattered beams into parallel beams. Second invention is a constitution for measuring a scattered light on an optical material and an optical thin film, comprising a conversion means for converting the scattered beams into parallel beams.
Patent JP-2001280798-A (JP)
Title: Cargo compartment structure of refrigerated van
Inventor: UCHIDA SHUICHI
IPC: F25D11/00
Filed: 2000-03-30
Abstract: PROBLEM TO BE SOLVED: To improve loading efficiency for accommodated merchandise by eliminating a projection inside a cargo compartment of a refrigerated van. SOLUTION: The cargo compartment 1 is divided to two rooms of a front room for a refrigerating room 4 and a rear room for a cold storage room 5 by a partition wall 3. A recess 27 across the cargo rooms 4, 5 is formed on an upper wall 26 and closed by a cover plate 74 from under the upper wall to form a space having a box cross section. Partition members 72, 73 are provided on the space, and plural rows of air ducts 7A, 7B, 7C are formed having one side opening in the refrigerating room 4 and the other side opening in the cold storage room 5. A fan 8 is provided inside the air duct 7A. The air duct 7A is made to be cold air supplying duct for distributing and supplying cold air to the cold storage room from the refrigerating room, and the air duct 7B, 7C to be air circulating ducts supplying the air inside the cold storage room to the refrigerating room.
Patent JP-2001282883-A (JP)
Title: Logic verification method and device
Inventor: SUGAYA MASAYUKI
IPC: G06F17/50
Filed: 2000-03-30
Abstract: PROBLEM TO BE SOLVED: To perform an operation simulation of a logic circuit including gate circuits and flip-flop circuits so as to easily clarify the cause of malfunction, regarding a logic verification method and a device thereof which verify the authenticity of the logic of the logic circuit. SOLUTION: Prior to executing operation simulation, a tag that distinguishes between a clock signal and a data signal is added to each input signal for objective logic circuit of the operation simulation. While the operation simulation is performed, in the case an output of a gate circuit in the logic circuit varies in response to the change of inputted clock signal, a tag of clock signal is added to the signal of the output, in the case the output varies in response to the change of inputted data signal, a tag of data signal is added to the signal of the output and these output signals are permitted to propagate, and in case a signal having a tag of data signal is inputted to a clock input terminal of the flip-flop circuit in the logic circuit, a message is outputted.
Patent JP-2001286093-A (JP)
Title: Disc device and spindle motor
Inventor: ARAI KATSUTOSHI
IPC: H02K5/16
Filed: 2000-03-29
Abstract: PROBLEM TO BE SOLVED: To protect a disc of a disc device, which uses a spindle motor with a slide bearing, from contamination which is caused by leakage of lubricating oil from a bearing unit and makes recording/reproducing impossible. SOLUTION: A ring element whose diameter is larger than an inner diameter of a bearing is formed on a rotary shaft side of a hub on which a magnetic disc is mounted. The ring element is extended into a bearing unit and, further, a space is formed between a liquid surface of lubricating oil (magnetic fluid) and the end surface of the ring element extended into the bearing unit. With this constitution, the leakage of the lubricating oil which is caused by an impact can be avoided.
Patent JP-2001277288-A (JP)
Title: Method for manufacturing thin-walled window cover for portable telephone or the like
Inventor: YAMAMOTO ISAO
IPC: B29K101/00
Filed: 2000-03-31
Abstract: PROBLEM TO BE SOLVED: To maximally ensure the area of a transparent window part and to eliminate the generation of the resin flow to the transparent window part even in a thin-walled resin molded article. SOLUTION: In a method for obtaining a thin-walled window cover for a portable telephone by inserting a decorative film 1 having the transparent window part 3 formed thereto in a mold capable of molding the resin molded article 8 having a main body 6 with a thickness of 0.8-3.0 mm and a pawl part 7 to perform injection molding, the decorative film 1 is set to the mold so that the distance between the end part 31 of the transparent window part 3 of the decorative film 1 and the cavity end surface 121 of the mold is set to 5 mm or less and a transparent resin 18 is injected from the back surface of a place where the pawl part 7 is molded.
Patent JP-2001285264-A (JP)
Title: Data receiver
Inventor: TSUKAGOSHI NORIO
IPC: H04L25/49
Filed: 2000-03-31
Abstract: PROBLEM TO BE SOLVED: To provide a data receiver that attains reception processing of data of different transmission rates and automatically discriminates the transmission rate to select a clock signal. SOLUTION: The data receiver includes a phase synchronization circuit 3 that outputs a clock signal synchronized with the phase of received data and an identifier 2 that applies identification recovery to the received data in the timing of the clock signal, and is provided with frequency dividers 8, 9 which apply frequency division to an output signal from the phase synchronization circuit 3 at different frequency division rations, respectively, a selector 7 to select either of the frequency dividers 8, 9 and a discrimination control section consisting of a violation detection section 11, an integration circuit 12,  a comparator 13 and a flip-flop 14 or the like that discriminate the transmission rate of the received data through the detection or the like of the presence of violation of the code rule to control the selector 7 so as to selectively output the clock signal corresponding to the transmission rate of the received data.