baber/WOPTO huggingface dataset:
Patent JP-2002093156-A (JP)
Title: Control method for rewrite-in operation of memory cell in semiconductor integrated circuit, semiconductor integrated circuit, semiconductor device provided with the semiconductor integrated circuit, and electronic equipment using the semiconductor device
Inventor: MARUYAMA AKIRA
IPC: G11C11/22
Filed: 2001-06-20
Abstract: PROBLEM TO BE SOLVED: To solve the problem that the start of rewrite-in operation is delayed and finishing of read-out operation is delayed, resulting in that read-out operation cycle is delayed, since the timing of switching the potential of a plate line PL to the potential GND from the power soure potential VDD is set after much time elapses after a sense amplifier reads out data, in a conventinal method. SOLUTION: When a sense amplifier 3 detects data H, the potential of a plate line PL is switched to a potential GND from a power source potential VDD. That is, the start of rewrite-in operation can be quickened since the timing of switching the potential of a plate line to GND potential from power source potential VDD can be set immediately after reading out data by a sense amplifier. Thus, it is possible to quicken the start of rewrite-in operation, to quicken the finish of read-out operation and to shorten a read-out operation cycle since timing of switching a potential of a plate line to GND potential from power source potential VDD can be set immediately after the sense amplifier reads out data.
Patent JP-2003009504-A (JP)
Title: Transmission device
Inventor: KUSUMI SABURO
IPC: F16H49/00
Filed: 2001-06-22
Abstract: PROBLEM TO BE SOLVED: To provide a power transmission device capable of reducing manufacturing cost and improving power transmission precision. SOLUTION: Permanent magnets 14a, 14b are formed at the outer periphery of an input shaft 12 to magnetize the input shaft 12. A middle yoke 17 is provided in an air gap between the input shaft 1 and an output shaft 15. A plurality of pole teeth 15a, 17a arranged so that tooth phases may be shifted from each other are formed on a peripheral surface in which the output shaft 15 and the middle yoke 17 face each other.
Patent JP-2003003911-A (JP)
Title: Negative pressure regulating valve device for exhaust recirculation
Inventor: TSUZUKI KUNIHIRO
IPC: F16K47/02
Filed: 2001-06-22
Abstract: PROBLEM TO BE SOLVED: To restrict columnar resonance generated in negative pressure air current passing piping 15a due to resonance of a solenoid 24 of a negative pressure generating valve device with the piping 15a when an exhaust recirculation valve part 8 is actuated, and cost-advantageously achieve this restriction of columnar resonance by a simple structure. SOLUTION: In this negative pressure regulating valve device 15 for exhaust recirculation, a negative pressure air current from a vacuum pump 18 is sent through an output port 16 and the piping 15a to the exhaust recirculation valve part 8. Receiving negative pressure, the exhaust recirculation valve part 8 is opened, so that exhaust gas G from an engine is mixed with intake air to be reburned in a cylinder 9. Since a porous disk S provided with a porous part is provided on the output port 16, the negative pressure air current passes the porous part 28, when it is dispersed and absorbed, so that generation of columnar resonance is restricted. Due to a simple structure comprising the single porous disk S, space saving effect can be cost-advantageously achieved without narrowing a mounting space for other parts.
Patent JP-2003007597-A (JP)
Title: Method and device for multiplying mask pattern partially and mask structure
Inventor: MORIYA AKIRA
IPC: G03F7/20
Filed: 2001-06-25
Abstract: PROBLEM TO BE SOLVED: To realize highly accurate superposition by performing desired correction of magnification differently in the direction of X axis and in the direction of Y axis. SOLUTION: A force is applied to a mask structure comprising a mask substrate on which a mask pattern is formed and a ring-like supporting frame 1 having a square window 2 with four points on the outer circumference of the supporting frame substantially located on the extension of both diagonals of the square window 2 as pressure applying points 4-7. The force is applied while adjusting the angle of a vector of force with respect to the center of each pressure applying point 4-7. A part of the pressure applying points is divided to apply a force in two orthogonal directions and a part of the vector of force is divided in the direction of X axis and Y axis parallel with the sides of the square window 2 so that the force can be applied to the supporting frame 1.
Patent JP-2003003866-A (JP)
Title: Mechanical governor device for compression ignition engine
Inventor: SHINGU KENJI
IPC: F02D1/02
Filed: 2001-06-25
Abstract: PROBLEM TO BE SOLVED: To allow a delicate adjustment under operating condition of a compression ignition engine by enabling torque adjustment during operation which is unable to be performed in conventional governor devices in which the Angleich spring mechanism for torque control is incorporated in the housing. SOLUTION: The governor lever mechanism comprises a tension lever 12 supported freely rotatably on a governor lever shaft 15, the governor lever 11 supported freely rotatably on the tension lever and a torque lever 27. The Angleich spring mechanism 19 for torque control is provided to the tension lever. The torque lever is controlled by the mechanism 19 so as to control the injection amount of a fuel injection pump through the medium of the governor lever. The governor case 8 is provided with a limiting bolt 33 which is operable from the outside and abutted to the tension lever 12 from the outside, and with a limiting bolt 32 abutted to the mechanism 19, which enables maximum torque adjustment during engine operation.
Patent JP-2003006835-A (JP)
Title: Magnetic recording medium
Inventor: NOGUCHI HITOSHI
IPC: G11B5/708
Filed: 2001-06-26
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium, in which the electromagnetic transducing characteristic is good, and which is optimum for digital recording. SOLUTION: The magnetic recording medium is characterized in that a substantially non-magnetic lower layer is formed by coating on a supporting body with paint for lower layer which is made by dispersing a nonmagnetic powder into a binder and then drying it, and then a magnetic layer with a thickness of 0.01-0.15 μm is formed by dispersing a ferromagnetic metal powder or a hexagonal ferrite powder into a binder in this order, wherein diamond particles whose mean particle diameter are 1/5-2 times the thickness of the magnetic layer are contained in the magnetic layer with the mass of 0.1-5.0 mass% of the ferromagnetic powder.
Patent JP-2002043979-A (JP)
Title: Low signal to noise ratio acquisition and link characterization techniques for vsat spread spectrum modems
Inventor: MORRIS JAMES R
IPC: H04B7/216
Filed: 2001-06-27
Abstract: PROBLEM TO BE SOLVED: To provide VSAT (Very Small Aperture Terminal) spread spectrum MODEM that can enhance acquisition and tracking performance of a spread spectrum signal. SOLUTION: A modulator 22 provides a quadrature phase shift keying(QPSK) modulation scheme where a pseudo noise code is combined with data to be fed to one channel and to form other channel. A demodulator 34 utilizes a signal acquisition processor to receive a modulated signal and to detect the pseudo noise code applied to a first channel. When the demodulator 34 detects and acquires the first pseudo noise code, the demodulator 34 decides a second pseudo noise code to demodulate second channel and to generate modulated data. The signal acquisition processor receives many parametric measured values to allow the demodulator to tune to the pseudo noise spread code on I and Q channels with high accuracy and to firmly acquire the pseudo noise code.
Patent JP-2003008140-A (JP)
Title: Semiconductor laser control module and its applied unit
Inventor: TATENO KIMIO
IPC: H01S5/024
Filed: 2001-06-27
Abstract: PROBLEM TO BE SOLVED: To solve the problem about the fact that the detected wavelength gets out of a prescribed target range sometimes because the detected wavelengths deviate because the wavelength error of the detector varies with the change in an ambient temperature in a wavelength-locked optical system. SOLUTION: A part of a wavelength error detector where a light beam passes through is brought into contact with a material of high thermal conductivity.
Patent JP-2003010929-A (JP)
Title: Method for manufacturing inner cylinder for tuyere and method for manufacturing tapered tubular component
Inventor: KINOSHITA SHOICHIRO
IPC: B21D41/02
Filed: 2001-06-29
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an inner cylinder for a tuyere capable of causing no generation of cracks and capable of reducing variations of wall thicknessed after processing. SOLUTION: The outer diameter A of a pipe 7a is bigger than the minimum diameter B of a concave section 23 of a female die 21 and when the pipe 7a is inserted into the concavo section 23 of the female die 21, the pipe 7a is locked to the inside wall of the concave section 23 keeping a certain distance H from the bottom surface 24 of the concavo section 23. By this way, a male die 22 is inserted into the pipe 7a, and the upper side of the pipe 7a is expanded while descending the male die 22. The pipe 7a is formed into a tapered shapes by tucking the bottom side for reducing it.
Patent JP-2003022651-A (JP)
Title: Optical disk drive, optical information recorder and optical information reproducing device
Inventor: ONAKI NOBUAKI
IPC: G11B25/04
Filed: 2001-07-06
Abstract: PROBLEM TO BE SOLVED: To make an optical disk recordable in a high density by surely suppressing a face wobbling of the optical disk with an aerodynamic force on the both sides of the sheet-shaped flexible optical disk. SOLUTION: When a first stabilizing guide member 7 is brought close to a rotating optical disk 1, a pressure rise occurs on a disk intrusion side in the first stabilizing guide member 7 on the basis of the Bernoulli's theorem, the optical disk 1 lounds to float, a gap subsequently narrows according to a convex shape of the first stabilizing guide member 7, a rate of flow is increased to reduce pressure, and the optical disk 1 gets closer to the first stabilizing guide member 7. Furthermore, a second stabilizing guide member 9 pushes the optical disk 1 toward the first stabilizing guide member 7 because the second stabilizing guide member 9 with a shape that increase the pressure of air flow over an optical pickup 4 is provided, and the face wobbling on the optical disk 1 is satisfactorily suppressed.
Patent JP-2003019500-A (JP)
Title: Drying method and equipment for the same
Inventor: NAGAISHI KYOJI
IPC: F26B3/24
Filed: 2001-07-10
Abstract: PROBLEM TO BE SOLVED: To provide a drying method which prevents sludge from bunching up together and entangling with agitating vanes, is capable of subjecting the sludge to drying treatment to form the sludge to a dry granular state and is capable of greatly improving working efficiency and shortening the time required for the drying and to provide an equipment for the same. SOLUTION: The drying method comprises feeding and adding polyvalent cation materials including polyaluminum chloride, etc., to materials to be treated and subjecting the materials to post treatment including a drying process step including a drying machine. The drying equipment has the drying machine having a double structure which is internally evacuated to a vacuum and is passed with heating means on its outside. The heating means is passed in this drying machine and the circumference thereof is provided with a revolving shaft having agitating vanes. The drying machine is annexed with an automatic feeding device for a solution of the polyvalent cation materials of the amount precalculated with respect to the feeding amount of the materials to be treated and organic polymer flocculating agent to be fed and added.
Patent JP-2003023573-A (JP)
Title: Vision chip
Inventor: MATSUI MASAHIRO
IPC: H04N5/374
Filed: 2001-07-11
Abstract: PROBLEM TO BE SOLVED: To provide a vision chip with having resolution having the increased number of pixels per area, in which a plurality of light-receiving elements and operating elements which are arranged two-dimensionally are integrated by connecting them, in such a way that they correspond to each other one by one, or that the one row of light-receiving elements correspond to one operation element to execute a series of steps from imaging through processing which are in parallel and at a high speed. SOLUTION: A light-receiving array, in which light-receiving elements are arranged two-dimensionally, is prepared by using a semiconductor layer formed on a transparent substrate. This array is mounted facedown, by a method of flip-chip bonding via metal bumps, on another semiconductor substrate in which an operation array is formed, in such a way that the operation elements correspond to the light-receiving elements one by one, or that one row of the light- receiving elements corresponds to one operation element, to form a three- dimensional structure.
Patent JP-2003032893-A (JP)
Title: Method of controlling operation of reactive power compensator
Inventor: MATSUNO NAOYA
IPC: H02J3/16
Filed: 2001-07-12
Abstract: PROBLEM TO BE SOLVED: To provide an operation method for a reactive power compensator, which is quick in response and can stabilize the voltage also in regard to the load ripple on the power source side than the link point out of a power system. SOLUTION: The power factor is obtained by measuring the voltage and current by means of a sensor 9, at the link point 7 of a reactive power compensator 3 to a power system 1. The control circuit 10 of the reactive power compensator 3 issues an added output command value A+Z where an amount Z of output required for compensating the ripple of system voltage is added to the output command value A required to accord the power factor with the objective power factor, and performs the operation control of the reactive power compensator 3, according to it. What is more, the above objective power factor cosθ is decided by the expression of cosθ=X/√(X<2> +R<2> ), based on the rate of the amount X of inductance being the line impedance of the power system 1 to the amount R of resistance.
Patent JP-2002106172-A (JP)
Title: Method and apparatus for introducing concrete prestress
Inventor: ABE NOBORU
IPC: E04G21/12
Filed: 2001-07-16
Abstract: PROBLEM TO BE SOLVED: To provide a method for introducing concrete prestress, which is high in degree of construction freedom and can improve the layout efficiency of hollow steel bars, and to provide an apparatus for use therein. SOLUTION: According to the method, the existing hollow steel bar 1 is arranged such that its distal end is rigidly buried in existing concrete 8 and its base-side end 3 is protruded from a placement surface 15 of the existing concrete 8 toward new concrete 13. Then, a bearing block 5 is rigidly screwed into a female screw portion 4 formed at the base-side end 3 in the existing hollow steel bar 1, and a new hollow steel bar 10 is serially connected to the base-side end 3 of the existing hollow steel bar 1 via a coupler 9. Further, a pressing rod 11 is screwed into the female screw portion 4 formed at a base- side end in the new hollow steel bar 10 to press the bearing block 5 in the existing hollow steel bar 1, which leads to relative application of a tensile load to the new hollow steel bar 10.  In addition, new concrete 13 is placed on the periphery of the new hollow steel bar 10, and the pressing rod 11 is removed after curing of the new concrete 13, whereby compressive prestress is applied to the new concrete 13.
Patent JP-2003028685-A (JP)
Title: Flow rate-measuring instrument
Inventor: NAGAOKA YUKIO
IPC: G01F1/66
Filed: 2001-07-18
Abstract: PROBLEM TO BE SOLVED: To measure flow rate accurately regardless of the presence or absence of a pulsating flow. SOLUTION: The flow rate-measuring instrument comprises a repetition means 11 for repeating transmission/reception between a transmitter 6a and a receiver 6b for transmitting or receiving sound waves in fluid, a measurement control means 18 for executing a plurality of measurement sets with the measurement of a plurality of sound wave propagation time by the repetition means 11 as one measurement set, and a flow rate calculation means for calculating the flow rate by integrating the value of each sound wave propagation time. The measurement control means 18 adjusts the count of the measurement set for measurement, thus improving following properties in the case of the pulsation of flow and appropriately measuring the average flow rate in the case of stable, steady flow.
Patent JP-2003024685-A (JP)
Title: Washing and drying machine
Inventor: MATSUOKA SHINJI
IPC: D06F39/04
Filed: 2001-07-19
Abstract: PROBLEM TO BE SOLVED: To reduce creases and entangling of laundry, to eliminate non- uniformity in drying and to enable efficient drying at all the time even when laundry stagnating water is put in or laundry is added in the middle of water supply in washing in a washing and drying machine, with which processing from washing to drying can be consistently performed. SOLUTION: This machine is operated under at least two processes of different time ratios of a tub spinning mode for performing drying while spinning an inner tub and a rotary blade rotating mode for performing drying while rotating a rotary blade and, correspondingly to the exact quantity of laundry 36 according to the result of a detection means 37b showing the presence of water equal to the quantity of laundry, the time ratio is changed to a proper time and a proper mode. Thus, the laundry can be uniformly and efficiently dried at all the time without being entangled.
Patent JP-2003028301-A (JP)
Title: Metallic gasket
Inventor: KAWAI SHIRO
IPC: F16J15/08
Filed: 2001-07-19
Abstract: PROBLEM TO BE SOLVED: To provide an excellent following property to relative displacement of a cylinder block and a cylinder head, and to ensure a sealing property by making bearing pressure changing around a cylinder bore uniform. SOLUTION: This metallic gasket 1 comprises a first gasket base plate 11 and a second gasket base plate 21. The first gasket base plate 11 is provided with a first stepped stopper 12 having a C-shaped cross section and srrounding a combustion chamber hole 3. The second gasket base plate 21 is provided with a second stepped stopper 22 and a second bore bead 23 at positions respectively superimposed on the first stepped stopper 22 and the first bore bead 13. The width L1, L2, the height H1, H2, and the wall surface angle θ1A, θ1B, θ2A, θ2B, of the stepped stoppers 12, 22, and the width 11, 12, and the height h1, h2 of each bore bead 13, 23 can be changed along a periphery of the combustion chamber hole 3.
Patent JP-2003033460-A (JP)
Title: Golf score card
Inventor: HIRAMURA HITOSHI
IPC: B42D15/00
Filed: 2001-07-23
Abstract: PROBLEM TO BE SOLVED: To provide a score card for golf in which detailed conditions of the game at each hole are easily entered. SOLUTION: This card has a shot information entry column 1 for entering the information about the shots at each hole and a green information entry column 2 for entering the information on the green on the left and right side thereof. The shot information entry column 1 has the entry columns 11 to 16 for entering the state of the used clubs, the ball course, the falling point of the ball and the rest of the distance to the pin. The green information entry column 2 has the entry columns 2P, 2L, and 21 to 24 for entering the positional relation of the ball and the pin on the green and the line to the pin when the ball is on the green and the distance to the pin at each patting.
Patent JP-2003035823-A (JP)
Title: Light guide plate device
Inventor: UEDA YOSHIO
IPC: G02B6/00
Filed: 2001-07-24
Abstract: PROBLEM TO BE SOLVED: To provide a light guide plate device improving front side brightness. SOLUTION: The light guide plate device is provided with a light transmission plate 1 composed of a transparent acrylic resin, of which the rear surface has many circular recessed grooves 3 with nearly hemicycle shaped cross sections formed thereon and a reflection sheet 2 composed of a white resin disposed on the rear surface of the light guide plate 1. Besides an inner diameter b of the circular recessed grooves 3 is suitably set to be in the range of a half to one times a diameter a of the nearly hemicycle part. In addition, a light source outside the figure is provided on an edge part of the light guide plate 1. Light 4 from the light source is propagated accompanied with interfacial reflections inside the light guide plate 1.
Patent JP-2003037941-A (JP)
Title: Ac-dc conversion apparatus
Inventor: ISHIDA ISATO
IPC: H02J3/38
Filed: 2001-07-24
Abstract: PROBLEM TO BE SOLVED: To suppress the occurrence of overcurrent by the phase-difference between a system and a load at AC link. SOLUTION: The AC-DC conversion apparatus 1 is operated linking with a system 5 and a load 7 through the medium of an AC switch 6. When load current occurs during the off state of the AC switch 6, the phase-difference between system voltage Es2 and load voltage Es1 is caused by a system interconnection reactor XLs and an AC filter 13. Therefore, the phase-difference between the system voltage Es2 and the load voltage Es1 is detected with a phase detector 25 so that the phase-difference is controlled by a phase control circuit 22 to be reduced to zero. The AC switch 6 is turned on to execute the AC link when the phase-difference is 0.
Patent JP-2003036018-A (JP)
Title: Learning system
Inventor: ITO RYUICHI
IPC: G06Q50/20
Filed: 2001-07-25
Abstract: PROBLEM TO BE SOLVED: To provide an improved learning system particularly suitable for learning using a portable terminal. SOLUTION: A server 2 has a question data table. A plurality of option groups for each question are included in the question data table and have different difficulty levels. The server selects one of the option groups and transmits it to a cellular phone 1 of a user. The user selects an option from the transmitted option groups based on a question sentence. The user transmits an answer to the server 2.
Patent JP-2003035881-A (JP)
Title: Image display device
Inventor: TANAKA KATSUTO
IPC: H04N5/225
Filed: 2001-07-25
Abstract: PROBLEM TO BE SOLVED: To provide a compact image display device where axially asymmetric aberration caused in a beam splitter is compensated. SOLUTION: This image display device is equipped with a reflection type liquid crystal display element (1) for displaying a picture on a display surface (1a), an illumination optical system (4) for illuminating the display surface (1a), an eyepiece optical system (3) by which the image on the display surface (1a) is enlarged and observed, and a PBS sheet (2) separating an illumination optical path from the optical system (4) to the display surface (1a) and an eyepiece optical path from the display surface (1a) to the optical system (3a), and the optical system (3) has a toric surface (S5#) in order to compensate the axially asymmetric aberration caused in the sheet (2).
Patent JP-2003037587-A (JP)
Title: Method for generating session key
Inventor: ARAMAKI MICHIMASA
IPC: G06F21/00
Filed: 2001-07-26
Abstract: PROBLEM TO BE SOLVED: To prevent the leak of data by the access from an illegal person in the encrypted communication and generate a session key by the information which can be shared only between the reliable partners. SOLUTION: A processing unit is provided with a communication processing part 1, a input device 2 like a key board and a mouse, a display device 3, a central processing unit 4, a main storage device 5, a second storage device 6 which stores such as a processing module and a table for displaying a color image, a session key generating part 9, a session key information preservation part 10, and a session key switch timing control part 11. At the time of encrypted communication a session key used before is used when a new session key is generated.