baber/WOPTO huggingface dataset:
Patent JP-2002300132-A (JP)
Title: Method and instrument for measuring nonlinear characteristic of amplifier
Inventor: NAGATSUKA MAMORU
IPC: H04N17/00
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To provide a method and an instrument for measuring a nonlinear characteristic of an amplifier, that can measure both amplitude and phase change characteristics of the amplifier only from an output signal of the ampli fier when the amplifier amplifies an OFDM signal. SOLUTION: In the method and instrument for measuring the nonlinear characteristic of the amplifier in the OFDM(Orthogonal Frequency Division Multiplex) transmission, the nonlinear characteristic is acquired by comparing the amplitude and the phase of a signal, which is obtained by applying Fourier transform to a multi-carrier signal and also applying inverse Fourier transform to the resulting signal, with those of a signal, which is obtained by applying correction with respect to signal space diagram to a signal resulting from applying inverse Fourier transform to the multi-carrier signal. Furthermore, averaging pilot signals obtained through the processing of a plurality of symbols is used as a pilot for the application of the correction.
Patent JP-2002296365-A (JP)
Title: Electronic device, electronocally-controlled mechanical clock and method of controlling the electronic device
Inventor: KOIKE KUNIO
IPC: G04C10/00
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To provide an electronic device, which can increase the braking torque of a generator, while a drop in power generation power is being suppressed, which can reduce the change in the rotational speed of a power generation rotor and which can prevent the stoppage of the rotor, excess in the speed or the like. SOLUTION: The electronic device is provided with the generator 20, which is driven by a mechanical energy source and a rotation controller 50, which controls the rotation cycle of the generator 20. The rotation controller 50 is provided with switches 21, 22, which can connect both ends of the generator 20 to be in a closed-loop state, a chopping-signal generating part 150 which generates a chopped signal applied to the switches and a braking control part 55, which chopping-controls the generator in such a way that three kinds of control operations, i.e., a strong braking control operation, whose braking effective value by the application of the chopping signal is large, an intermediate braking control operation, whose braking effective value is intermediate and a weak braking control operation, whose braking effective value is small, are switched and carried out.
Patent JP-2002292458-A (JP)
Title: Silicon casting device and silicon casting method
Inventor: YAMATANI MUNEYOSHI
IPC: B22D27/04
Filed: 2001-03-29
Abstract: PROBLEM TO BE SOLVED: To solve a problem that it is difficult to make even the temperature gradient in an ingot from the initial period of solidification to the complete solidication. SOLUTION: In the silicon casting device provided with a mold for filling a silicon mold liquid, a pedestal for placing the mold, and a cooling plate for cooling the bottom of the mold, the cooling plate is made to vertically move independently of the pedestal.
Patent JP-2002293525-A (JP)
Title: Silicon carbine powder, its production method and silicon carbine monocrystal
Inventor: MARUYAMA TAKAYUKI
IPC: C01B31/36
Filed: 2001-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a effective production method of silicon carbide powder suitable for producing a silicon carbide monocrystal excellent in electron characteristic with less crystal defects. SOLUTION: The production method of silicon carbide powder is characterized by aftertreating at 210 deg.C or more, after the mixture which mixes at least a kind of silicon sources, and at least a kind of carbon sources is fired. Preferably, the aftertreatment is performed at 2,150-2,400 deg.C, the silicon source is an alkoxysilane compound, the alkoxysilane compound is at least each ethoxysilane dimer or ethoxysilane polymer, the carbon source is a phenol resin, the aftertreatment is performed in an argon atmosphere and the time of the aftertreatment is 3-8 hours.
Patent JP-2002296961-A (JP)
Title: Image forming device and method for preventing recording paper from being stuck
Inventor: NAGASAKI OSAMU
IPC: G03G21/14
Filed: 2001-03-30
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of preventing a phenomenon that OHTs are stuck to each other on a paper ejection tray when recording paper is the OHT, and a method for preventing the recording paper from being stuck. SOLUTION: This image forming device is equipped with a transfer device transferring an unfixed developer image to the recording paper 2, and a fixing device 13 fixing the unfixed developer image on the recording paper 2 by heating the recording paper 2 carried from the transfer device while holding and carrying it. In the case of consecutively printing the OHT as the recording paper 2, throughput is restrained by making space between paper and paper longer than usual and also fixing temperature is appropriately controlled in the space between the paper and the paper.
Patent JP-2002294252-A (JP)
Title: Liquefaction apparatus
Inventor: TSUCHIYA AKIRA
IPC: C08J11/12
Filed: 2001-03-30
Abstract: PROBLEM TO BE SOLVED: To provide a liquefaction apparatus which decreases the amount of residues, inhibit the occurrence of coking, and enables the continuous operation. SOLUTION: This liquefaction apparatus 1 comprises a thermal decomposition vessel 5 which contains a melt liquid ML and has a plastic charge-in port 2 for charging a waste plastic P, a gas recovery port 3 for recovering a decomposition gas DG, and a liquid take-out port 4 for taking out the melt liquid ML containing a residue RM and installed at the bottom end; an agitation propeller 8 for agitating the melt liquid ML contained in the thermal decomposition vessel 5; a combustion chamber 9 installed around the thermal decomposition vessel 5; a heating burner 10 for heating the outer peripheral wall of the decomposition vessel 5 in the combustion chamber 9; a fractionation section 14 which is connected to the gas recovery port 3 and recovers and fractionates the decomposition gas generated in the decomposition vessel 5 to give gasoline G, kerosene T, and gas oil K;  a gear pump 12 for taking out the melt liquid ML containing the residue RM from the liquid take-out port 4 of the decomposition vessel 5; and a spray section 13 for spraying the taken-out melt liquid ML into the combustion chamber 9.
Patent JP-2002292867-A (JP)
Title: Ink jet head
Inventor: KOMAI HIROMICHI
IPC: B41J2/055
Filed: 2001-04-02
Abstract: PROBLEM TO BE SOLVED: To solve such a trouble that an air damper effect is reduced less effectively. SOLUTION: A first air chamber 41 communicating with a diaphragm chamber 16 via a slit 40 and, a second air chamber 42 having one end communicating with the first air chamber 41 and the other end opened at an atmospheric opening 42a are set to an electrode substrate 2.
Patent JP-2001355476-A (JP)
Title: Control method and device for drive unit
Inventor: SCHMIDT JOHANNES E
IPC: B60W10/18
Filed: 2001-04-05
Abstract: PROBLEM TO BE SOLVED: To provide a control method and device for a drive unit improving the traveling comfortableness of a vehicle by effectively suppressing the vibration of the vehicle generated to a drive train by the elasticity of a shaft in controlling the drive unit of the vehicle. SOLUTION: In this control method and device for the drive unit, if there is the vibration of the drive train, torque is lowered until the vibration stops. Further, the value of torque generated in the vibration is stored, and when the torque exceeds the stored value, the rise of torque is restricted.
Patent JP-2002311006-A (JP)
Title: Standard oil producing device for gas-in-oil analyzing device
Inventor: KURITA SHINJI
IPC: G01N30/04
Filed: 2001-04-17
Abstract: PROBLEM TO BE SOLVED: To provide a device for producing standard oil in short time without requiring much labor to eliminate problems in conventional devices requiring a lot of time for producing standard oil, or expensive cost in the case of outside production. SOLUTION: A deaeration container 3 is set vacuum, and insulation oil 1 is injected, so that the insulation oil foams to let oxygen, nitrogen, and carbon dioxide that are dissolved in the insulation oil be quickly reduced as an injection method for the insulation oil to the deaeration container 3. A bottom surface 9C of an injection cylinder 9 having a connection port 9A in a perpendicular direction to a cylindrical direction is disposed to form a flat surface. An agitator 14 is easy to rotate, agitation efficiency of injected standard gas with deaerated insulation oil is improved, dissolving speed of standard gas to the insulation oil is increased, and work efficiency to produce the standard oil is improved.
Patent JP-2002056649-A (JP)
Title: Data reproducer
Inventor: MATSUI YOSHINORI
IPC: G11B27/00
Filed: 2001-04-18
Abstract: PROBLEM TO BE SOLVED: To provide a data reproducer that can effectively reproduce and erase a program including the video and audio data which are recorded on a memory card. SOLUTION: A decoding means that decodes the data read out of a memory searches for an ID that is coincident with the program ID designated by a user from a program file management data file and then refers to the relative program information to read a movie data file out of the folder of the designated program and to decode the movie data file.
Patent JP-2002311308-A (JP)
Title: Optical transmitting and receiving equipment
Inventor: UNO HITOSHI
IPC: H04B10/00
Filed: 2001-04-19
Abstract: PROBLEM TO BE SOLVED: To provide an optical transmitting and receiving equipment to be installed on the side of a terminal which can consists of a small number of parts in an optical communication system for performing bi-directional communication by light of a first wavelength zone λ1 and performing one-way communication from the side of a station to the side of the terminal by light of a second wavelength zone λ2 . SOLUTION: A bi-directional communication function part 111 for transmitting/receiving the light of the first wavelength zone λ1 is arranged at the tip of an optical fiber 121. A WDM filter 132 for transmitting the light of the first wavelength zone λ1 and reflecting the light of a second wavelength zone λ2 is arranged at the prestage of the bi-directional communication function part. A light receiving element 131 for receiving the light of a second wavelength zone λ2 is provided at the position of receiving the light reflected by this WDM filter.
Patent JP-2002318273-A (JP)
Title: Mobile station positioning system utilizing unidirectional communication
Inventor: KIMOTO AKINORI
IPC: G01C21/28
Filed: 2001-04-20
Abstract: PROBLEM TO BE SOLVED: To make widely utilizable a VRS to mobile station positioning by obtaining highly accurate positioning position information and also reducing the communication cost with the use of VRS information communicated in one way. SOLUTION: According to the system for mobile station positioning utilizing unidirectional communication, a plurality of antenna stations Ak (A1-An) are set as virtual reference points within a region surrounded by a plurality of fixed reference stations R1-R4. A VRS information broadcasting center SS generates VRS information at the virtual reference points Ak on the basis of satellite observation information from each of the fixed reference stations R1-R4. Each antenna station Ak communicates VRS information having the station itself set as the virtual reference point in one way from the VRS information broadcasting center SS to the mobile station SM. The mobile station SM measures the position of the mobile station SM by a VRS method on the basis of the received VRS information and GPS observation information on the mobile station SM.  The VRS information used for the measurement is obtained from the antenna station as the reference point closest to the mobile station and having a largest signal intensity.
Patent JP-2002322512-A (JP)
Title: Manufacturing method of solid gear cutting tool formed of high-speed tool steel demonstrating excellent chipping resistance in high-speed gear cutting
Inventor: TANAKA KAZUMITSU
IPC: B23F21/00
Filed: 2001-04-24
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a solid gear cutting tool formed of high-speed tool steel demonstrating the excellent chipping resistance in high- speed gear cutting. SOLUTION: In the manufacturing method of the solid gear cutting tool formed of high-speed tool steel in which a tool stock formed of high-speed tool steel and roughly worked to a shape corresponding to the shape of the final solid gear cutting tool is quenched to realize the martensitic structure, the quenched tool stock is tempered to realize the martensitic structure of the residual austenite distributed in the stock of the martensitic structure formed in the quenching, and the tempered tool stock is finished to the final shape in a final stage, the quenched tool stock is subjected to the sub-zero treatment of cooling and keeping at the temperature of <=-150 deg.C to realize the martensitic structure of the residual austenite distributed in the martensitic stock.  Thus, the residual austenite forming a starting point of chipping during the high-speed gear cutting is not present in the martensitic structure in the structure of the tempered tool stock.
Patent JP-2002324182-A (JP)
Title: Mail-order method
Inventor: NAKAJIMA TAKESHI
IPC: G06Q10/00
Filed: 2001-04-24
Abstract: PROBLEM TO BE SOLVED: To provide a mail-order method that enables a user who receives a discount, a commodity retailer providing a mail-order service, and an advertising agency providing advertisement information to enjoy merits each other. SOLUTION: A user obtains information of products in order to order from a retail center by using the user's terminal, a choice between a normal price without a discount and a discount price by proving the advertisement information is displayed the discount price is down loaded from the retail center as a background screen if the user selects the discount price on the advertisement and the user receives a retail service with the discount prices after he/she reads the advertisement and sends a password based on reading the advertisement to the retail center.
Patent JP-2002016015-A (JP)
Title: Method of manufacturing semiconductor device
Inventor: TANAKA KOICHIRO
IPC: H01L21/20
Filed: 2001-04-25
Abstract: PROBLEM TO BE SOLVED: To provide a method by which the crystallinity of a region, which is irradiated with a laser beam several times, can be improved. SOLUTION: A first crystalline region is formed by performing laser annealing on part of an amorphous semiconductor film, using a laser beam having a wavelength in the range of 370-650 nm. When performing the laser annealing, it is preferable to project the laser beam by processing the beam, so that the beam may become a linear beam on the face to be irradiated or its vicinity. Then a second crystal region is formed by performing laser annealing on a region of the amorphous semiconductor film containing part of the first crystal region. Since crystallinity of the first crystal region, second crystal region, and the overlapping region of the first and second crystalline areas thus formed are the same, a crystalline semiconductor film having good crystallinity can be obtained.  When the crystalline semiconductor film is used as the active layer of a TFT and the electrical characteristics of the active layer is measured, the characteristics hardly fluctuate.
Patent JP-2002323833-A (JP)
Title: Image forming device
Inventor: DOBASHI YOSHIKANE
IPC: G03G15/00
Filed: 2001-04-25
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of preventing the undesired deterioration of the positional accuracy of a transfer roller and a resist roller with reference to a photoreceptor drum due to the undesired draw of a transfer belt unit. SOLUTION: In a jamming processing of the image forming device main body 30, in the case 1st and 2nd switches 44 and 45 are turned on, or in the case the 1st switch is turned off, but, the 2nd switch is turned on, the following possibility is increased that a toner image is transferred on the leading end side of the jammed paper, then, a locking mechanism 46 is released from being locked, and the jammed paper is removed while drawing out the transfer belt unit 7 in a right direction through a rocking frame 43. In another case, the rocking frame 43 is locked by the locking mechanism 46 so that the transfer belt unit 7 may not be drawn from the image forming device main body 30. Then, the transfer belt unit 7 is prevented from being undesirably drawn out.
Patent JP-2002322725-A (JP)
Title: Urinal
Inventor: MATSUMOTO OSAMU
IPC: E03D13/00
Filed: 2001-04-25
Abstract: PROBLEM TO BE SOLVED: To provide a urinal which enables supply of electric power, required for an electrical appliance provided in a urinal body, without depending on only electric power supplied from an external power source and which enables a reduction in cost of electricity used for the electrical appliance. SOLUTION: In the urinal body 1, a target mark part 2 is formed in a position capable of inhibiting scattering of urine. The mark part 2 is provided with a Peltier device 3 which makes electromotive force generated by a temperature difference between the urine and the urinal body 1. A deodorizing device 5 and the like are constituted in such a manner as to be driven by the electromotive force of the Peltier device 3.
Patent JP-2002322476-A (JP)
Title: Slurry composition and soil improver, material and clay wall, molding made of soil and solidified body made of sea sand using the same
Inventor: TAKEMURA AKIRA
IPC: C09K17/44
Filed: 2001-04-25
Abstract: PROBLEM TO BE SOLVED: To obtain a slurry composition having excellent strength characteristics, excellent watertightness and excellent durability, to provide a soil improver, a material for clay wall, moldings made of soil and a hardened body made of sea sand using the same. SOLUTION: In this slurry composition a raw material is composed of an asphalt and/or a thermoplastic resin previously dissolved into a liquid state. An aqueous solution of a poval are sent to a blender consisting of a rotator and a non-rotating body. The rotator is rotated at a high speed to continuously produce an aqueous dispersion composition, which has 0.5-30 kg/m<3> as a solid content, mixed and diluted with water into 9-2,000 kg/m<3> in total. The diluted material is incorporated with a cement-based hardening material and/or cement in an amount of 30-1,000 kg/m<3> into a slurry state. The slurry composition is mixed with soil, soil and sand or sea sand, if necessary, the mixture is molded or hardened to give the soil improver, material for clay wall, moldings made of soil and a hardened body made of sea sand.
Patent JP-2002324971-A (JP)
Title: Controller and its manufacturing method
Inventor: KANETAKE MASASHI
IPC: H05K7/20
Filed: 2001-04-26
Abstract: PROBLEM TO BE SOLVED: To prevent such a trouble that solder jetting at flow soldering contacts the projection projected below the soldering face of a wiring board, of a heat sink large in heat radiation thereby radiating heat partially and producing a solder slag in an icicle form, even in soldering with lead-free solder. SOLUTION: The heat sink 8 is fixed to the wiring board before soldering, and the tip 8b of the projection 8a provided at one end of the heat sink 8 for a stopper at that time is positioned within the through hole 4a of the wiring board 4, and solder is applied to the soldering face 4b on opposite side from the heat sink attachment face of the wiring board.
Patent JP-2002326009-A (JP)
Title: Felt used as filer and its manufacturing method
Inventor: OSUMI KAZUO
IPC: F01N3/035
Filed: 2001-05-08
Abstract: PROBLEM TO BE SOLVED: To manufacture a felt used as a filter, whose porosity varies in the thickness direction. SOLUTION: This felt is manufactured by laminating a short fiber (f), namely, by laminating a plurality of fiber layers whose fiber (f) directions to be laminated are different from one another in the thickness (t) direction so that the felt has the inclined porosity in the thickness (t) direction.
Patent JP-2002156184-A (JP)
Title: Method and device for removing water drops from umbrella
Inventor: KURIYANO KO
IPC: F26B5/00
Filed: 2001-05-09
Abstract: PROBLEM TO BE SOLVED: To remove efficiently water drops from an umbrella wetted by rain. SOLUTION: The whole of umbrella 18 is vibrated up-and-down by the operation of a push-up impact under an upright posture gripped through the ferrule 19 of the umbrella 18 whereby water drops, adhering to the umbrella 18, are dropped due to an inertia force.
Patent JP-2002338229-A (JP)
Title: Silica meso-structure thin film, meso-porous silica thin film, method for forming silica meso-structure thin film and method for forming meso-porous silica thin film
Inventor: MIYATA HIROKATSU
IPC: B01D67/00
Filed: 2001-05-10
Abstract: PROBLEM TO BE SOLVED: To propose a silica meso-structure thin film and a meso-porous silica thin film, which are each formed on an optional substrate and has orientation. SOLUTION: The silica meso-structure thin film is formed on a high molecular compound film provided on the substrate and is formed on a part or the whole of high molecular compound film having a surface, on which structural anisotropy is given by the irradiation with linearly polarized light. The meso- porous silica thin film is formed by removing a surfactant from the fine pores of the meso-structure and is composed of hollow structural fine pores.
Patent JP-2002331028-A (JP)
Title: Medical tube and its manufacturing method
Inventor: KUBOTA YOSHINOBU
IPC: B01J21/06
Filed: 2001-05-10
Abstract: PROBLEM TO BE SOLVED: To provide a medical tube which enables a sufficiently high carrying strength by carrying an antibacterial metal in a photocatalyst layer, which facilitates controlling of its carrying amount and which enables an operating effect by stably carrying the antibacterial metal in addition to the effect by a titanium oxide photocatalyst layer to be performed to the maximum limit and a method for manufacturing the same. SOLUTION: The medical tube comprises the photocatalyst layer formed of titanium oxide particles in which the antibacterial metal is carried on the surface of a tube body made of an elastomer. The method for manufacturing the same is provided.
Patent JP-2002330922-A (JP)
Title: Endoscope
Inventor: ABE SUKENAO
IPC: G02B23/26
Filed: 2001-05-10
Abstract: PROBLEM TO BE SOLVED: To provide an endoscope which is small in curving resistance and hardly gives rise to damage and breakage even when the endoscope is repetitively used. SOLUTION: This endoscope has an insertion portion 2 having flexibility (pliability) and a control section installed on the base end side of the insertion portion 2. The insertion portion 2 is constituted by disposing a long-sized member, such as a tube or wire, into a lumen composed of an outer membrane 382, or the like. A lubricant 5 mainly composed of a tetrafluoroethylene polymer of an average molecular weight 700 to 8,000 is disposed within the lumen. The melting point of the tetrafluoroethylene polymer is preferably 200 to 310 deg.C. The average grain size of the tetrafluoroethylene polymer is preferably 0.1 to 15 μm.