baber/WOPTO huggingface dataset:
Patent JP-2003158172-A (JP)
Title: Wafer holder
Inventor: NISHIKAWA YOICHI
IPC: H01L21/205
Filed: 2001-11-21
Abstract: PROBLEM TO BE SOLVED: To obtain a wafer holder in which presence of a wafer on the mounting surface can be confirmed well electrically with high reliability over a long term by improving the electrical conduction structure between the wafer mounting surface of a wafer holding member and an introduction tube. SOLUTION: The wafer holder comprises a ceramic wafer holding member 11 having a through hole 11c, a metallic introduction tube 12 having an upper end flange part 12a brazed to the periphery of the lower surface 11b side opening of the through hole 11c, and a ceramic ring 15 brazed to the flange part 12a while having a through hole of larger inside diameter than that of the through hole 11c and a beveled part 15a formed at the upper surface side opening of the through hole. The wafer holding member 11 is provided with a step part 11d at the lower surface 11b opening of the through hole 11c, and the inner side face 11e at the step part 11d extends within a range R from the upper surface side starting point P of the beveled part 15a to a position of 1.5 mm toward the central side and the vertical depth is 0.5-2.5 mm.
Patent JP-2002258980-A (JP)
Title: Device and method for synchronizing processes running in several units
Inventor: ALBRECHT KAI
IPC: G06F1/10
Filed: 2001-11-28
Abstract: PROBLEM TO BE SOLVED: To perform the synchronization of a plurality of processes by a simple means. SOLUTION: Units 5a and 5b are connected via a bus system 10. A system clock generated by the unit 5a is distributed via the bus system 10 to all the units 5b related with processes. The units 5a and 5b related with the processes are respectively provided with multiplying units 11 for multiplying a system clock.
Patent JP-2003166009-A (JP)
Title: Desulfurization method for molten pig iron
Inventor: KIKUCHI NAOKI
IPC: C21C1/02
Filed: 2001-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To improve efficiency of desulfurization treatment for molten pig iron, and to provide a desulfurization method which can stably maintain a desulfurization reaction of high efficiency.  <P>SOLUTION: In the desulfurization method for the molten pig iron, which charges a desulfurization agent into the molten pig iron from above the surface of the molten pig metal accommodated in a cupola pot, and performs a mechanical stirring with stirring blades inserted in the molten pig iron, this method is characterized by blowing the gas containing hydrogen gas or hydrocarbon gas which generates hydrogen gas when decomposed, onto the surface of the molten pig iron at a flow rate of 3 normal liter/min per the molten pig iron of 1 t, and rotating the stirring blades while blowing the gas so as to make a depth of the static surface of the molten pig iron L<SB>0</SB>(mm) and a depth of a recess L (mm) of the molten pig iron formed by the blown gas to satisfy L/L<SB>0</SB>≥0.02.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003161092-A (JP)
Title: Test boring method and its apparatus
Inventor: KAWANISHI SHIGERU
IPC: E21B10/64
Filed: 2001-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a new test boring apparatus suitable for performing test boring in horizontal directions by a reverse method and a test boring method used for the same.  <P>SOLUTION: The test boring apparatus is provided with an outer rod, an inner rod, and a test boring head mounted to the tip of the inner rod and insertable in the outer rod. The test boring head comprises inner bits and outer bits, and the outer bits are protruded from the outer rod and enlarge their diameter to excavate the ground in front of the outer rod. By housing the outer bits, the test boring head is extracted from the outer rod to replace worn bits.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003159868-A (JP)
Title: Method for manufacturing recording material, and recording material
Inventor: MIYAMOTO KENICHI
IPC: B41M5/00
Filed: 2001-11-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a recording material with a high quality ink receiving layer by improving a water dissolving process of polyvinyl alcohol and compatibility of the polyvinyl alcohol and a surfactant, and a recording material manufactured by the method.  <P>SOLUTION: In the method for manufacturing the recording material in which a coating liquid for the ink receiving layer containing at least the polyvinyl alcohol resin and the surfactant is prepared and the coating liquid for the ink receiving layer is applied on a base material 1 and dried to form the ink receiving layer 2 on the base material 1, the method is characterized by using a surfactant with a viscosity at 25°C of at least 100 mPa.s as the surfactant and adding the polyvinyl alcohol resin into water in the presence of the surfactant and dissolving it to prepare the coating liquid for the ink receiving layer.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003164961-A (JP)
Title: Light metal injection forming machine
Inventor: FUJIKAWA MISAO
IPC: B22D17/32
Filed: 2001-11-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light metal injection machine in which accurate metering and injection are carried out in a die-cast forming machine and which is easily maintained and has a simple device for supplying a material.  <P>SOLUTION: The injection cylinder block 20 of an injection device 10 is provided with a molten metal pool 22 for storing the a molten metal fed from a melting furnace for a short time, and a molten metal passage 26 communicating with, the nozzle hole 11a of an injection nozzle 11, the end of the injection chamber 23 of an injection cylinder 21 and the inlet 26a for the passage of the molten metal at the bottom of the molten metal pool 22. The molten metal is fed to the injection chamber 23 from the front of the molten metal pool 22 and metered and then injected to a molten metal passage 24 from the front of the injection chamber 23 and the molten metal passage 24 is filled with the molted metal, thus metering and injection are accurately carried out and the variation of temperature and pressure are suppressed. The slight variation of the amount of the molten metal to be filled into the molten metal pool is allowed, thus a molten metal feeding device for feeding the molten metal to the injection device 10 from the melting furnace may be a simple device. The injection cylinder block 20 can easily be replaced.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003166552-A (JP)
Title: Rolling bearing
Inventor: ASAI HIROMITSU
IPC: F16C19/16
Filed: 2001-11-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a rolling bearing provided with a plastic seal member which retains the sealing performance for a long time and improves the productivity.  <P>SOLUTION: The face roughness of a sealing circular protrusion 33 of a seal plate 23 closely stuck in a state of face-contact with the inside face 31b of a seal fitting groove 31 formed in the vicinity of tangential both ends of the inner peripheral face of the outer ring 26 is made 0.4 μm at most in average roughness of the central line and the height is made 1.6 μm at most. The face roughness of the inside face 31b is made 1.6 μm at most in the average roughness of the central line and the maximum height is made 6.3 μm at most. The wall thickness of an elastic protrusion 35 of the seal plate 23 bringing an elastic repulsive force against press of the sealing circular protrusion 33 onto the inside face 31b decreases gradually from the basal part toward the front end getting into contact with the outside face 31c, and a flat or a round curved contact face 35a is formed.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003164399-A (JP)
Title: Electric vacuum cleaner
Inventor: SENOO HIROYUKI
IPC: A47L9/04
Filed: 2001-11-30
Abstract: <P>PROBLEM TO BE SOLVED: To solve a problem that when the state of a floor suction means is judged by a current value, it is not understood whether a rotating brush rotates as the state of the floor suction means and the electric blower of a main body or the motor of the floor suction means is hardly finely controlled in accordance with the state of the floor suction means.  <P>SOLUTION: An electric vacuum cleaner comprises the motor 10 for rotating the rotating brush 9, a floor suction means connection detecting part 13 and a floor suction means release detecting part 14, a temperature protecting means 16 and a temperature protective operation detecting means 17. The state of the floor suction means is decided from the information of them to finely control the electric blower 6 or the motor 10.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002230897-A (JP)
Title: Encoding device and reproducing device
Inventor: TANAKA YOSHIAKI
IPC: G11B27/00
Filed: 2001-11-30
Abstract: PROBLEM TO BE SOLVED: To enable a user to make reproducing of many and diversified kinds of digital audio disks and to enable a disk manufacturer to utilize the same disk by different methods. SOLUTION: A DVD(digital versatile disk) encoding circuit 34 records >=1 musical pieces, bonus information on the musical pieces, interactive data for accessing the bonus information and a disk identifier indicating the DVD enhanced audio disk to the DVD enhanced audio disk. A control section 63 on a reproducing side decides whether to receive the input of the interactive data or not in accordance with the disk identifier and permits the reproducing of the bonus information when the correct interactive data is inputted in the case of the decision to accept the same.
Patent JP-2003167584-A (JP)
Title: Active type silencer
Inventor: TAKAMIYA TSUGUMASA
IPC: G10K11/178
Filed: 2001-12-04
Abstract: <P>PROBLEM TO BE SOLVED: To effectively damp noises in a stationary noise field where noise sources cannot be specified.  <P>SOLUTION: The active type silencer 1 comprises a speaker 2, a microphone 3, an analog-to-digital converter 4, a controller 5 and a digital-to-analog converter 6. The controller 5 is internally provided with a CPU 7 and a memory 8. The CPU 7 separates the tones collected from the microphone 3 to the noises and the output tones from the speaker 2, estimates the waveforms of the noises, predicts the waveforms of the next noises, forms the muffling tones of the anti-phase from the waveforms of the noises and outputs the tones removed of the tones by as much as the number of the samples corresponding to the propagation time τ of the tones between the speaker and the microphone.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003110567-A (JP)
Title: Wireless communication system and wireless lan access point
Inventor: KOYANAGI ATSUSHI
IPC: H04L12/28
Filed: 2001-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a wireless LAN communication system, in which a wireless LAN network can be separated at a data link layer level. SOLUTION: An identifier presenting a network segment is added to a frame to be used for wireless communication and a wireless LAN client receives only the data matched with the identifier presenting the current network segment. Thus, in the same radio frequency band, the wireless LAN network can be separated into a plurality of networks at the data link layer level.
Patent JP-2002300430-A (JP)
Title: Apparatus and method of executing adaptive filter operation on input data sample
Inventor: GRALEY JOHN STANSFIELD
IPC: H04N5/21
Filed: 2001-12-17
Abstract: PROBLEM TO BE SOLVED: To effectively execute an adaptive filter operation performed with deranging. SOLUTION: The method for determining whether a filtering calculation is applied to input data samples by executing a logic calculation of logic data items comprises a step (a) of converting the logic calculation to an equivalent logic calculation including the filtering calculation, a step (b) of storing the input data samples and the logic items in data words, a step (c) of applying the filtering calculation to the data words, using a data processor, and storing the filtered data samples and corrected logic data items in the data words, a step (d) of comparing the corrected logic data items with specified references, and a step (e) of taking either the input data samples or data samples fetched from the filtered data samples, according to the comparison in the step (d) as the output data samples.
Patent JP-2003189226-A (JP)
Title: Editor and editing method
Inventor: SHIBUYA MANABU
IPC: H04N19/70
Filed: 2001-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a picture recording and reproducing device which edits the terminal part of a stream to be left in the unit nearer to a user's designated time than conventional one in the case of editing for deletion of the rear part of a program stream of pictures.  <P>SOLUTION: In the case of editing video data recorded as an MPEG program stream, processing is performed in the unit of reference pictures (with three frames as a unit). That is, information of the terminal part of the stream to be left is inputted (S1), and a reference picture in a GOP (group of picture) corresponding to information of the terminal part is determined (S2), and the picture just preceding the determined reference picture is decided as the last picture of the stream to be left (S3).  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002230859-A (JP)
Title: Magneto-optical disk recording device
Inventor: TAKEGAWA HIROSHI
IPC: G11B11/105
Filed: 2001-12-17
Abstract: PROBLEM TO BE SOLVED: To prevent a magnetic field head 14 from hindering the insertion or discharge operation of a magneto-optical disk in inserting or discharging the magneto-optical disk of a magneto-optical disk recording device with which recording is carried out by sliding contact of a magnetic head 14 with the magneto-optical disk. SOLUTION: When a cartridge holder 33 supporting a disk cartridge housing the magneto-optical disk is turned to a rising and turning position, an arm member 20 is turned by a slider 39 and the magnetic field head 14 is thereby moved in a direction detaching from the magneto-optical disk, by which the hindering of the insertion or discharge operation of the disk cartridge is prevented.
Patent JP-2003180976-A (JP)
Title: Cold pressing device for manufacturing game machine
Inventor: HOTTA NAOHIRO
IPC: A63F7/02
Filed: 2001-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To prevent the adhesion of an adhesive to a pressing body.  <P>SOLUTION: Air regulated in humidity and temperature is blasted from a blowoff port 16 to flow from the upper face of a decorative sheet 10 toward the outside of the decorative sheet 10 so as to lick an adhesive 11 pressed out to the periphery from the decorative sheet 10, and after the adhesive 11 pressed out to the periphery from the decorative sheet 10 is dried with the air and stripped of adhesive strength while being hardened, a drive source 1 starts its lifting operation, and in association with this, a pressing body 3 descends toward a machining object part 8. In this process, a lower face 4 presses the decorative sheet 19, and a bearer 7 supports a game board 9 together with a conveying body 5. The game board 9 and the decorative sheet 10 are firmly anchored and connected with the adhesive 11.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003188657-A (JP)
Title: Log amplifier, fast phase correction circuit, and analyzer
Inventor: ASANO TAKESHI
IPC: H03F1/34
Filed: 2001-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a log amplifier which can maintain a high speed even if an input current is low or an input signal is few, and which can improve a frequency characteristic.  <P>SOLUTION: A log amplifier is provided with an operational amplifier, a feedback circuit, a feedback resistor, a capacitor arranged in parallel with the feedback resistor for preventing an oscillation of an amplifier, and capacity correction means for correcting a capacity of the capacitor corresponding to a change of the feedback resistor.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003182261-A (JP)
Title: Cover
Inventor: MASAOKA SETSUO
IPC: B42D3/18
Filed: 2001-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a cover which allows the integral utilization of a bookmarker forming part and cover parts for covering obverse and reverse covers of a notebook and the like.  <P>SOLUTION: The cover 10 comprises: an obverse cover part 15 for covering the obverse cover 13; and a reverse cover part 16 which continues into the cover part 15 via a back cover part 17 and covers the reverse cover 14. The bookmarker forming part 21 is continuously provided on the side of an outer edge of the cover part 15. A holding part 27 for holding the forming part 21 is provided in the cover part 16, so that closed attitudes of the cover parts 15 and 16 can be maintained.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002319845-A (JP)
Title: Practical pseudo-asynchronous filter architecture
Inventor: JABBARI ALIREZA
IPC: H03H17/06
Filed: 2001-12-19
Abstract: PROBLEM TO BE SOLVED: To solve a problem that the structure of a filter is complicated with a limited operating speed when a filter-processed output is supplied to a process of a next stage and when a period being a requirement of the process of the next stage is dissident with the period for the operation of the filter and supplying an output. SOLUTION: The architecture of this invention is provided with a plurality of synchronous filters, the filter outputs are staggered in time and one of a plurality of the outputs is selected and provided as an output to achieve the purpose above.
Patent JP-2003189655-A (JP)
Title: Motor control method and motor control apparatus
Inventor: KOKUBO MASATOSHI
IPC: H02P29/00
Filed: 2001-12-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a motor control method and a motor control apparatus which can realize the superior speed stability and can print with a high resolution.  <P>SOLUTION: An LPF 11 removes frequency components whose frequencies are not less than a cut-off frequency fco from the speed information indicating a moving speed of a carriage. A deductor 12 deducts the output of the LPF 11 from a set target speed to calculate a speed deviation. A proportional control value and an integral control value are obtained by a proportional operator 13 and an integral operator 14 according to the speed deviation, and a differential control value is obtained by a differential operator 15 according to the speed information before passing through the LPF 11. An operator 16 deducts the differential control value from a value obtained by adding the proportional control value to the integral control value to obtain a control value of a CR motor driving the carriage. It is to be noted that the cut-off frequency fco is set to a value which can eliminate the influence of a cogging torque produced in the CR motor when the carriage is moved with he target speed.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003184562-A (JP)
Title: Reed valve
Inventor: CHIBA EIZABURO
IPC: F16K15/16
Filed: 2001-12-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a reed valve which enhances intake efficiency and surely prevents an unexpected deformation of a valve element even when the internal pressure on the discharging side is abnormally increased.  <P>SOLUTION: The reed valve 21 is composed by fixing in a cantilever shape a platelike valve element 17 in which an approximately quadrangle shaped fluid circulation hole 13 penetrated in the direction of plate thickness is formed in the midsection and the elasticity openable/closable in accordance with the pressure of the fluid passing through the circulation hole 13 provided on the surface in the discharging side of a platelike supporting substrate 12, and a stopper 18 for restricting the open position of the valve element 17, in a manner that the valve element 17 covers the circulation hole 13 with a fastening member, wherein the deformation preventing member 22 for preventing transformation of the valve element 17 by receiving the valve element 17 from the intaking side is provided to the part of the circulation hole 13.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003181180-A (JP)
Title: Frame supporting structure for sewing machine
Inventor: OZEKI YUKIHIRO
IPC: D05C9/04
Filed: 2001-12-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a frame supporting structure capable of improving frame driving characteristics and reducing vibrations to a sewing frame.  <P>SOLUTION: In the frame supporting structure of a sewing machine provided with a driving frame 20, rails 22 provided so as to be extended in the horizontal direction of the sewing machine on the driving frame 20, a slider 24 slidably engaged with the rails 22 and a first movable body 23 and a second movable body 25 displacing the sewing frame 50 in the horizontal direction of the driving frame 20 by providing the slider 24 and the sewing frame 50, two columns of the rails 22 are arranged side by side on the driving frame 20 and the first movable body 23 is provided with the slider 24 respectively engaged with the rails 22.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002252868-A (JP)
Title: Portable wireless terminal
Inventor: FURUKAWA KUNIAKI
IPC: H04W88/02
Filed: 2001-12-25
Abstract: PROBLEM TO BE SOLVED: To provide a portable wireless terminal for shutting out the power supply automatically, when there is a prescribed factor of breaking the power supply. SOLUTION: When a prescribed factor of breaking the power supply (X-rays exceeding a prescribed threshold) is detected by a detecting means made up of an X-ray detection sensor and the like, the power-breaking means (power supply breaking unit 15) is operated, and the power supply/through the power supply feeding control means (power supply feeding circuit 14), is broken automatically. The power breaking means and the power feeding means are constituted of a one-chip microcomputer and the like.
Patent JP-2003193886-A (JP)
Title: Intake air control method for internal combustion engine
Inventor: SHODA KATSUHIRO
IPC: F02D41/02
Filed: 2001-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem on a cylinder injection spark igniting engine where the amount of intake air is decreased before starting and the amount of intake air is increased after starting for improving the startability at cold starting, that an air/fuel ratio is changed with the increase in the amount to cause the lowering of the startability.  <P>SOLUTION: When the cylinder injection spark igniting internal combustion engine where a fuel is injected into a combustion chamber is in an operated condition to hardly form a combustible mixture at starting, the amount of intake air is decreased, and when that the internal combustion engine is started is determined, the amount of intake air is gradually increased.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002249852-A (JP)
Title: Low specific electric resistance and low thermal expansion alloy
Inventor: YASUMATSU HITOSHI
IPC: C22C38/30
Filed: 2001-12-25
Abstract: PROBLEM TO BE SOLVED: To provide a low specific electric resistance and low thermal expan sion alloy for prolonging the service lives of various high temperature plant equipment such as a gas turbine, and for large-sizing a solid oxide fuel battery, which has a thermal expansion coefficient close to that of stabilized zirconia, exhibits high oxidation resistance and electric conductivity, has excellent mechan ical strength and oxidation resistance at high temperatures. SOLUTION: At least one selected from Ti, Zr and Hf of 0.1 to 5 wt.% (wherein, the content of Hf exceeds 1 wt.%) and 1 to 10 wt.% Co are incorporated into a Cr-W-Fe based alloy having thermal expansion consistency with stabilized zirconia. Thus, the alloy has reduced electric resistance, and has improved mechanical strength at high temperatures without damaging its thermal expansion consistency, oxidation resistance and electric conductivity. Particularly, when the alloy contains Hf, by the coexistence of B, hot working therefor is made possible.