baber/WOPTO huggingface dataset:
Patent JP-2001318062-A (JP)
Title: X-ray foreign matter detection device
Inventor: OTSUKI TOMOYASU
IPC: H05G1/02
Filed: 2000-05-08
Abstract: PROBLEM TO BE SOLVED: To enhance shielding of a leakage X-ray from an X-ray generator and cooling of the X-ray generator. SOLUTION: This X-ray foreign matter detection device 1 is equipped with a ventilation trunk 40 for guiding the heat generated from the X-ray generator 10 to the outside, and a radiator 16 having a cooling fin 18 supported by penetrating a board 17 forming a part of the ventilation trunk 40 and sealing the X-ray generator, for transmitting the heat into the ventilation trunk 40. The ventilation trunk 40 has a pair of ventilation openings 27a communicated with the outside, and is formed linearly from one ventilation opening to the other ventilation opening. The board 17 forming a part of the ventilation trunk 40 is detachable together with the X-ray generator 10 from the ventilation trunk 40. The ventilation opening 27a is equipped with a detachable cooling fan mechanism 31 for cooling the cooling fin 18 in the ventilation trunk 40.  In the ventilation trunk 40, the heat is radiated from the radiator 16, and the leakage X-ray is attenuated by repeating absorption or scattering on the inner surface of the ventilation trunk 40.
Patent JP-2001315463-A (JP)
Title: Apparatus for cleaning surface of book
Inventor: NISHIZAWA KATSUTOSHI
IPC: B08B1/04
Filed: 2000-05-11
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for cleaning the surface of a book which surely removes dust and stains by handling from the surface and the back of the book by wiping them with water and can clean a large number of books efficiently without impairing them and which can reduce the work for supplying moisture. SOLUTION: The apparatus is equipped with a conveying mechanism moving the book 2 horizontally, a stocker 4, 5 holding a plurality of books 2 and supplying them one by one sequentially to the conveying mechanism and a plurality of cleaning rollers 30 and 31 having a layer holding moisture, such as water or a cleaning liquid, on the surface respectively and provided above and below in parallel. The upper and lower cleaning rollers 30 and 31 are disposed so that a gap between them is narrower than the thickness of the books and are rotated in reverse to the direction of advance of the books to move them one by one sequentially through the gap. In this way, the surface of the book is wiped with water by the cleaning rollers 30 and 31.
Patent JP-2001322513-A (JP)
Title: Vehicular dark current reducing method and device
Inventor: OKADA AKIRA
IPC: G06F12/16
Filed: 2000-05-11
Abstract: PROBLEM TO BE SOLVED: To prevent flowing of dark current in a battery causing wasteful consumption of electric power due to feeding of a +B power source of a vehicle to an apparatus even after turning off an ACC power source and finishing a post-processing of a deck mechanism part by microcomputer control. SOLUTION: A +B power source control part 10 provided as a vehicle side device outputs the +B power source after delaying it a certain time when a turning off of the ACC power source of the vehicle is detected. A power source detecting part 16 outputs an ACC power source OFF signal to a microcomputer part 14. The microcomputer part 14 stores data stored in an internal memory into an EEPROM 17 within the certain time and finishes the necessary post-processing of the deck mechanism part 13. Since the +B power source is cut off after performing the necessary post-processing the battery dark current can be reduced to zero during nonuse of the electric apparatus for preventing wasteful consumption of the battery.
Patent JP-2001322968-A (JP)
Title: Method for purifying methacrylic acid ester
Inventor: OTSUKA SHUHEI
IPC: C07C67/08
Filed: 2000-05-12
Abstract: PROBLEM TO BE SOLVED: To provide a purification method capable of commercially obtaining a highly pure methacrylic acid ester essentially containing no lower alcohols. SOLUTION: This method for purifying a methacrylic acid ester is to lead a reaction mixture produced by esterifying methacrylic acid with a lower alcohol in a liquid phase to a counterflow type extraction column 22 through a line 3, introduce an extraction solvent from a line 4 to contact in a counter current to extract and separate unreacted alcohol, send the liquid to a high boiling material-removing column 23, distill a liquid containing methacrylic acid ester from the overhead, send the liquid to a lower boiling material-removing column 24 to distill and remove the lower boiling material, take out a bottom product containing the methacrylic acid ester from the bottom, send the bottom product to a purification column 25 and distill the highly pure methacrylic acid ester from the overhead.
Patent JP-2001326377-A (JP)
Title: Light receiving circuit and light receiving circuit array
Inventor: NAKAHARA TATSUSHI
IPC: H01L31/10
Filed: 2000-05-16
Abstract: PROBLEM TO BE SOLVED: To realize a small-sized light receiving circuit wherein operating speed and light receiving sensitivity are high, impedance conversion gain is large and crosstalk between channels is small in the case of multichannel. SOLUTION: A photodiode is stuck on an amplifier circuit board directly by using a hybrid integrating method using wafer bonding, and the photodiode and the amplifier circuit are electrically connected by using an electrode pad on the amplifier circuit board.
Patent JP-2001294632-A (JP)
Title: Vinyl chloride-based graft copolymer and vinyl chloride- based resin molding
Inventor: HATAYAMA HIROYUKI
IPC: C08F4/00
Filed: 2000-05-19
Abstract: PROBLEM TO BE SOLVED: To obtain both a vinyl chloride-based copolymer having excellent impact resistance and mechanical strength such as tensile structure and excellent balance of these characteristics and a molding using the same. SOLUTION: This vinyl chloride-based graft copolymer is characterized in that the vinyl chloride-based graft copolymer is obtained by subjecting 50-99 wt.% of a vinyl monomer consisting essentially of vinyl chloride to graft copolymerization onto 1-50 wt.% of an acrylic copolymer (A), the acrylic copolymer (A) is an acrylic copolymer composed of 100 pts.wt. of a radically polymerizable monomer containing at least one kind of (meth)acrylate monomer having >=-140 deg.C and <0 deg.C glass transition temperature of homopolymer and 0.1-30 pts.wt. of a polyfunctional monomer and the ratio of graft vinyl chloride is >=0.3. The vinyl chloride-based resin molding is obtained by using the vinyl chloride-based graft copolymer.
Patent JP-2001331398-A (JP)
Title: Server-managing system
Inventor: SATOMI KAZUNORI
IPC: G06F12/00
Filed: 2000-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a server-managing system capable of performing efficient distribution processing. SOLUTION: A web cluster 110 can access web servers 121-124 and inquires system load information at prescribed time intervals. When an access request 131 is received from a client browser 100, the web server of the lowest system load information is selected, and redirect information 133 describing the identifier of the relevant web server is returned to the client browser 100. The client browser 100, which receives the redirect information 133, sends a real request 141 to the relevant web server, on the basis of the identifier described on that information 133.
Patent JP-2000349614-A (JP)
Title: Input buffer circuit
Inventor: CHIN SAIJUN
IPC: H03K17/687
Filed: 2000-05-19
Abstract: PROBLEM TO BE SOLVED: To provide an input buffer circuit that has a fast operating speed with less power consumption. SOLUTION: The input buffer circuit is provided with a differential amplifier 21 that generates an output signal to an output node in response to an input signal and a reference voltage, a current supply means 23 to reduce a leading time of the output signal of the differential amplifier 21, and a current discharge means 25 that reduces a trailing time of the output signal of the differential amplifier 21. The current supply means 23 supplies a current to the output node within a prescribed short time from the trailing edge of the input signal in response to an output signal from a buffer connected to the output node of the differential amplifier 21 and the input signal.  The current discharge means 25 discharges a current of the output node of the differential amplifier 21 to ground within a prescribed short time from the leading edge of the input signal in response to the input signal and the output signal from the buffer.
Patent JP-2001331919-A (JP)
Title: Magnetic recording medium and magnetic recording device provided with the same
Inventor: KIRINO FUMIYOSHI
IPC: G11B5/02
Filed: 2000-05-22
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium excellent in thermal stability and suitable for super high density recording and to provide a magnetic recording device. SOLUTION: The magnetic recording medium 100 is provided with an information recording film 3 and a ferromagnetic film 4 on a substrate 1. The information recording film 3 is composed of an amorphous ferromagnetic material having vertical magnetization. Such a material has high thermal stability because of its high magnetic anisotropy and high activation volume and as a result, super high density recording can be realized. And further the ferromagnetic film 4 is formed by using a material having saturation magnetization higher than that of the information recording film 3. Leakage magnetic flux from the ferromagnetic film 4 is hither than that from the information recording film 3. High reproducing signal can be obtained by performing reproduction using a magnetic head for reproduction such as a MR head.
Patent JP-2001333476-A (JP)
Title: Speaker system
Inventor: TAMURA KAZUAKI
IPC: H04R1/02
Filed: 2000-05-23
Abstract: PROBLEM TO BE SOLVED: To solve problems of a conventional double bass reflex system that the system has needed a partition and a port in comparison with a bass reflex system resulting in causing a remarkable cost increase 1) and has had a smaller sound pressure effect due to the mechanical resistance of the port of the partition 2). SOLUTION: A partition 4 divides the inside of an enclosure 2 of a bass reflex type speaker system into a cavity on the speaker unit side and a cavity on the bus reflex port side, and the opening communicating the two cavities is configured only by the cross section of the partition 4 and the inner wall face of the enclosure 2 so as to operate the opening like a port by the effect of open-end correction, and hence no separate port for the partition 4 is required. Since the wall face of the enclosure 2 is used for a port, the area of the opening is increased, thereby reducing the mechanical resistance. As a result, the cost can be reduced and a low sound frequency component with a high sound pressure can be reproduced.
Patent JP-2001332360-A (JP)
Title: Noise preventing connector
Inventor: NEMOTO NORIYUKI
IPC: H01R107/00
Filed: 2000-05-23
Abstract: PROBLEM TO BE SOLVED: To obtain a noise preventing connector which can prevent an adverse effect of electromagnetic wave from a connector. SOLUTION: At a rear face of a connector main body part 3 of the connector 1 that is fixed to a circuit board 11, a conductive member 7 which has a larger size than the outside dimension of a rear face of the connector main body part is installed, and other electronic parts on the circuit board 11 or other electronic parts inside the case 14 and the connector main body part 3 are electro-magnetically shielded with the conductive member 7, and an influence of noises due to generated electromagnetic waves from the connector main body part on electronic parts are prevented.
Patent JP-2001329298-A (JP)
Title: Process for molding metal soap
Inventor: NAKAJIMA YOJI
IPC: C11D9/00
Filed: 2000-05-24
Abstract: PROBLEM TO BE SOLVED: To provide a process for molding a metal soap which allows easy and quick injection of a metal soap in a melt state into a molding part without using a press fitting apparatus. SOLUTION: The molding process has a slanting step wherein a tall mold body 4 having bottom-possessing molding parts 9 punched in the vertical direction is slanted against the horizontal plane, an injection step wherein a metal soap in a melt state is injected from the upper open end of the molding parts 9 with the mold body 4 slanted, a vertically raising step wherein the mold body 4 injected with the metal soap is raised almost vertically against the horizontal plane, and a cooling step wherein the mold body 4 is allowed to cool while standing almost vertically. By injecting the metal soap into a slanted molding part 9, the metal soap may be filled into the molding part 9 while efficiently exhausting the air inside the molding part 9.
Patent JP-2001329160-A (JP)
Title: Aromatic polycarbonate resin composition
Inventor: NAKADA MICHIO
IPC: C08L27/18
Filed: 2000-05-24
Abstract: PROBLEM TO BE SOLVED: To obtain a material having improved flame retardance, color tone and heat resistance, suitable as a molding material for various kinds of moldings such as an optical disc, a sheet, an automobile-related part, an office automation instrument, parts of household electric appliances. SOLUTION: This aromatic polycarbonate resin composition is characterized by compounding 100 pts.wt. of an aromatic polycarbonate which is a polycarbonate produced by a reaction between an aromatic dihydroxy compound and a compound into which a carbonate bond can be introduced and having 12,000-40,000 viscosity-average molecular weight, which has <=1,000 ppm content of a specific cyclic oligomer of formula (1) in which the ratio of the specified cyclic oligomer content to the total oligomer content satisfies a specific relation and is incorporated with 0.01-30 pts.wt. of a flame retardant.
Patent JP-2001335333-A (JP)
Title: Glass substrate production device and glass substrate for magnetic disc
Inventor: TAKAGI KAZUAKI
IPC: C03B11/08
Filed: 2000-05-25
Abstract: PROBLEM TO BE SOLVED: To provide a glass substrate production device which can mass-produce at a low cost, without postprocessing after molding, glass substrates for magnetic disc which have excellent surface smoothness and shape precision, and also provide the glass substrate. SOLUTION: This is a production device to produce the glass substrate 18 which has the outer diameter X and the thickness Y in the ratio of X>40Y by setting a glass material 5 between the upper and lower molds 1 and 2 which are fixed respectively to a pair of upper and lower heaters 6 and 7, and then by softening by heat and press forming. The device has an enclosing member 3 which can be set concentrically with the upper and lower molds and can enclose the space between the molds.
Patent JP-2001337520-A (JP)
Title: Image forming device
Inventor: YANO HIDETOSHI
IPC: G03G15/02
Filed: 2000-05-26
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device which lessens the formation of NOX and suppresses the generation of image flow by lessening the adhesion of the gaseous material generated in an electrostatic charger to the surface of an image carrying member. SOLUTION: The electrostatic charger 3 for electrostatically charging the surface 1a of the rotatable image carrying member 1 by discharging electricity to the rotatable image carrying member in a non-contact state is disposed nearer the lower side than the center 1b of rotation of the image carrying member 1 to lessen the adhesion of the gaseous material generated in an electrostatic charger 3 to the surface 1a of the photoreceptor, by which the formation of the NOX is lessened and the occurrence of the image flow is lessened.
Patent JP-2001345323-A (JP)
Title: Semiconductor device and its manufacturing method
Inventor: UCHIDA HIROAKI
IPC: H01L23/52
Filed: 2000-05-31
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device that has less number of processes such as film formation and etching, can control each process easily, and reliably and electrically join members. SOLUTION: A member for composing a semiconductor device is partially made of α-Si, treatment by the HSG generation technique is made, and a semi- spherical granular polysilicon is formed at one portion of the member that is made of the α-Si.
Patent JP-2001025463-A (JP)
Title: Fast spin eco phase correction for mri system
Inventor: MA JINGFEI
IPC: G01R33/561
Filed: 2000-06-01
Abstract: PROBLEM TO BE SOLVED: To carry out phase correction of a fast spin eco(FSE) pulse sequence to reduce image artifacts in a magnetic resonance imaging(MRI) system. SOLUTION: By adjusting the phases of an RF excitation pulse 305 and an FR re-focusing pulse 307 in an FSE pulse sequence by a prescan process for the FSE pulse sequence, spatially invariant phase errors (zeroth order) are reduced. The prescan process calculates values of a readout gradient compensation pulse 324, a phase-encoding gradient compensation pulse and a slice-select gradient compensation pulse to reduce the first order phase shifts along the readout, phase-encoding and slice-elect gradient axes.
Patent JP-2001345518-A (JP)
Title: Semiconductor laser element
Inventor: TSUJI MASAYOSHI
IPC: H01S5/227
Filed: 2000-06-01
Abstract: PROBLEM TO BE SOLVED: To provide a high-output semiconductor laser element of a mesa structure embedded type of 0.7-1.0 μm band, which has a structure where carriers are confined to a DH mesa stripe structure layer and optical distribution is relieved by using a side surface buried structure. SOLUTION: An n-Al0.3Ga0.7sAs clad layer 14 is grown on an n-GaAs substrate 13, DH structure layers 15-21 are selectively grown, p-In0.5Ga0.5P carrier blocks, whose film thickness is 0.1 μm and current block layers 23-25, are formed on both side surface parts of the DH structure layers, a p-Al0.3Ga0.7As clad layer 26 and a p-GaAs contact layer 27 are grown, and a p-side electrode 28 and an n-side electrode 29 are formed last. Since although a layer 22 has carrier confinement effect but its light-confining effect is low, concentration of light is relieved, and a high output laser can be realized.
Patent JP-2001064321-A (JP)
Title: Storage container for curable resin
Inventor: NISHIJIMA SHIGETOSHI
IPC: B65D1/00
Filed: 2000-06-05
Abstract: PROBLEM TO BE SOLVED: To provide a storage container being capable of storing a curable resin for a long term and having excellent heat resistance, rigidity, and moistureproofness by using a cycloolefin resin as the material for forming the container. SOLUTION: This container is made from at least one member selected from the group consisting of four cyclic olefin resins: (A) an α-olefin/cycloolefin random copolymer obtained by copolymerizing a 2-20C α-olefin with a cycloolefin of formula I or II (in formula I, (n) is 0 or 1; (m) is 0 or an integer of 1 or greater; (q) is 0 or 1; and R1 to R18, Ra, and Rb are each independently hydrogen, a halogen, or a hydrocarbon group, and in formula II, (p) and (q) are each 0 or an integer of 1 or greater; (m) and (n) are each 0, 1, or 2; and R1 to R19 are each independently hydrogen, an aliphatic hydrocarbon group, or the like), (B) a ring-opening polymer or copolymer of a cycloolefin of formula I or II, (C) a product of hydrogenation of component B, and (D) a graft modification of component A, B, or C.
Patent JP-2001004966-A (JP)
Title: Electronic-optical modulator and its production
Inventor: GILL DOUGLAS M
IPC: G02F1/035
Filed: 2000-06-05
Abstract: PROBLEM TO BE SOLVED: To obtain a profile of an electric field more highly matching with the profile of an optical field to produce the maximum optical field and electric field by forming side walls in such a manner that at least a part of the side wall forms an acute angle. SOLUTION: The peak of the profile of the RF field is shifted towards under the surface of a lithium niobate substrate. A side wall 55 having an acute angle is formed on the mesa including a waveguide 52. In this structure, the peak of the RF field formed on electrodes 53, 54 is shifted towards near the peak of the optical profile to improve the effect of the electron-opticalcal interaction and to optimize the overlap. In this device structure, the electrode 54 is offset in the z-direction due to the ridge structure, namely, the electrode 54 is sunk. A device having equivalent performance to the effect of the side wall having an acute angle can be formed with a common planar electrode.
Patent JP-2001055411-A (JP)
Title: Production method for cyclic olefin based polymer
Inventor: TAKASAKI KENJI
IPC: C08F32/00
Filed: 2000-06-07
Abstract: PROBLEM TO BE SOLVED: To provide a production method efficiently producing a cyclic olefin based polymer in high productivity by using a catalyst system combining a specific zirconium compound and an alkylaluminoxane. SOLUTION: (C) A cyclic olefin expressed by formula II (R4-R15 are each H, a 1-20C hydrocarbon, a halogen or the like; k is 0 or 1) is polymerized in the presence of a catalyst comprising (A) a zirconium compound expressed by formula I (R1-R3 are each H or a 2-10C hydrocarbon; X is a halogen, a 1-10C alkyl or a 1-10C alkoxy; n is 2-4) and (B) an organic aluminumoxy compound (an alkylalminoxane is preferred). The catalyst preferably comprises the component A of 107-102 millimole/liter and the component B of aluminum atom/zirconium compound of 10-100,000 (in the mole ratio).
Patent JP-2001347326-A (JP)
Title: Hemming apparatus
Inventor: TAKAGI YUICHI
IPC: B21D19/08
Filed: 2000-06-08
Abstract: PROBLEM TO BE SOLVED: To suppress an oscillation arm from elastic deforming with the reaction force of pressing force in hemming a work with a hemming edge. SOLUTION: A push up roller 24 of one end part of the oscillation arm 21 connected to an upper die 20 elevating is pushed up with an arm stopper 11 of a lower die 10, the oscillation arm 21 is oscillated. A hemming edge 25 of an end part 21b of the oscillation arm 21 oscillating/rotating downward is pressed for a work 1 of the lower die 10, hemming is conducted. Two links 31, 32, which are made linear with downward oscillating the end 21b, are interposed between the end part 21b of the oscillation arm 21 and the upper die 20. The reaction force from the hemming edge 25 is directly transmitted to the upper die 20 through the linear links 31, 32 so as to suppress elastic deforming of the oscillation arm 21.
Patent JP-2001347049-A (JP)
Title: Pachinko ball up-feeding device
Inventor: KOBAYASHI FUJIO
IPC: A63F7/02
Filed: 2000-06-12
Abstract: PROBLEM TO BE SOLVED: To provide a pachinko ball up-feeding device prevented from the occurrence of congestion of pachinko balls near a discharge port of an up- feeding tower. SOLUTION: This pachinko ball up-feeding device is constituted to smoothly discharge the pachinko balls at a ball delivery unit 51 for discharging the up-fed pachinko balls P. The ball delivery unit 51 is mounted to the upper end part of an up-feeding tower 15 and provided with a pachinko ball storage chamber 59 partitioned inside, The unit 51 is provided with a ball discharge nozzle 53 and an exhaust nozzle 55. The pachinko balls fed upward from an up-feeding tower body 15 are discharged from the ball discharge nozzle 53 while eliminating dust by the intake air of the exhaust nozzle 55.  A pressure regulating means 65 is provided near a ball discharge port 59a or at a top plate part 52a, and when the congestion of the pachinko balls occurs due to pressure reduction in the storage chamber, a regulating valve is opened to supply air into the storage chamber 59 to smooth the flow of the pachinko balls.