baber/WOPTO huggingface dataset:
Patent JP-2002094189-A (JP)
Title: Nitride semiconductor laser device and optical instrument using it
Inventor: TSUDA YUZO
IPC: H01S5/065
Filed: 2000-09-14
Abstract: PROBLEM TO BE SOLVED: To provide a nitride semiconductor laser device which uses a nitride semiconductor containing at least one element selected from among As, P, and Sb as a light emitting layer, has a small threshold current value, and is reduced in noise. SOLUTION: This nitride semiconductor laser device is provided with n-type nitride semiconductor layers 102-105 and p-type nitride semiconductor layers 107-110 formed on a substrate 100, and a light emitting layer 106 interposed between the n-type layers 102-105 and p-type layers 107-110. The light emitting layer 106 is composed of a well layer or a combination of the well layer and a barrier layer. At least the well layer of the layers constituting the light emitting layer 106 is composed of a nitride semiconductor containing one or more kinds of elements X selected from among a group composed of As, P, and Sb, N, and Ga. The atomic fraction of the elements X is smaller than that of N. The maximum injecting width of the current injected into the light emitting layer 106 through the p-type layers 107-110 is adjusted to 1.0-4.0 μm.
Patent JP-2002087621-A (JP)
Title: Sheet supplying device and image forming device equipped with the same device
Inventor: KATO KOJI
IPC: B65H3/52
Filed: 2000-09-18
Abstract: PROBLEM TO BE SOLVED: To miniaturize a device body equipped with a sheet supplying device by miniaturizing the sheet supplying device. SOLUTION: This sheet supplying device 21 is equipped with a sheet housing body 2 for housing sheets S therein, attachable to and detachable from the device body 1, a sheet feeding means 4 for sending the sheets out of the housing body, and a slope member 8 for stopping front ends of the sheets sent out of the housing body by the feeding means and separating the sheets one by one. The slope member 8 is provided on the device body 1.
Patent JP-2002100572-A (JP)
Title: Semiconductor element and its fabricating method
Inventor: HATA MASAYUKI
IPC: H01L21/205
Filed: 2000-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor element having a high quality semiconductor layer and exhibiting good element characteristics and high reliability, and its fabricating method. SOLUTION: A semiconductor laser element 100 comprises a buffer layer 2, an undoped GaN layer 3, an n-contact layer 4, a second n-clad layer 5, a first n-clad layer 6, an MQW emission layer 7, a first p-clad layer 8, a second p-clad layer 9, a p-cap layer 10 and a p-contact layer 11 formed sequentially on a sapphire substrate 1 having a major face of (001) C face. In the undoped GaN layer 3, half peak widths Δθ(104), Δθ(105) and Δθ(106) obtained by the diffraction plane of Miller indices (104), (105), (106) and (204) in an X-ray locking curve measured by asymmetric reflection satisfy a relation Δθ(104)<Δθ(105) and/or a relation Δθ(105)<Δθ(106).
Patent JP-2002095585-A (JP)
Title: Cooker
Inventor: AKAMATSU YOSHIO
IPC: A47J27/00
Filed: 2000-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a cooker whose caloric force can be controlled to be suited to boiling food. SOLUTION: This cooker consists of a heat source 23; a heat capacity control means which controls the heat power of this heat source; a driving control part 58 which controls the calorific power by driving the heat capacity control means; and a calorific power selection means, which switches the calorific power control done by the driving control means to a duty calorific power control which repeatedly provides different calorific power at intervals of a specified time. By repeatedly providing different calorific power at every specified time, it becomes possible to control the heating according to the content of boiled dish.  Moreover, because the calorific power changes, for example, from strong to weak at intervals of the specified time, boiling over rarely happens, and broth can be permeated into the inner part of the food being cooked without falling apart while cooking, so that the food can be cooked well.
Patent JP-2002096326-A (JP)
Title: Method for molding granulated material of waste plastics and molding device
Inventor: IBARAKI TETSUJI
IPC: B01F33/40
Filed: 2000-09-25
Abstract: PROBLEM TO BE SOLVED: To upgrade the shape quality of granulated plastics and prevent dust from being generated when such granulated plastics are manufactured, for use applications as a chemical feedstock for a gasification furnace, a petrochemical plant, a blast furnace for steel manufacturing, a coke oven and other reaction facilities or as a fuel, using waste plastics as a raw material. SOLUTION: This method for molding a granulated material of waste plastics comprises the steps to first crush the waste plastics, then perform the operation to stir the crushed waste plastics with the help of a device such as a stirring vessel and compression-mold the waste plastics using a compression-molding machine of such a type as to squeeze a raw material into a cavity mold. Also the molding installation is provided.
Patent JP-2002098004-A (JP)
Title: Freezing preventive device of carburetor
Inventor: MICHIZOE MASAAKI
IPC: F02M35/10
Filed: 2000-09-27
Abstract: PROBLEM TO BE SOLVED: To prevent dilution by preventing a carburetor from being frozen when it is extremely cold. SOLUTION: A fan case 4 is provided on one side of a crankcase, a starter cover 21 to surround a recoil starter 20 is provided on the fan case 4, outside air is introduced from outside air introducing holes 32, 33 bored in the starter cover 21, and cooling air is produced by a cooling fan 14 in the fan case 4. Hot air is produced by guiding the cooling air from a cylinder block and a cylinder head to an exhaust pipe by an air introducing cover. The hot air is guided to a carburetor and an air cleaner by a hot air guide. A shutter 28 actuated by a temperature sensitive actuator 30 is provided on the starter cover 21, and the outside air introducing holes 32, 33 are blocked by the shutter 28 when it is extremely cold.
Patent JP-2001191571-A (JP)
Title: Thermal head
Inventor: MASUTANI HIROSHI
IPC: B41J2/335
Filed: 2000-09-27
Abstract: PROBLEM TO BE SOLVED: To provide a thermal head comprising a protection film with little risk of dielectric breakdown even in the case of printing on a recording medium with a low moisture absorption property. SOLUTION: A thermal head comprising a heat generating resistor 3 on an insulated substrate 1, with the heat generating resistor 3 covered with a protection film 5 containing a carbon and a silicon, wherein the carbon content ratio in the protection film 5 is set to be 65-90 atm %, and 95.0% or more of the bonds between the carbons is a covalent bond of an sp2 hybrid orbit, is provided.
Patent JP-2002107450-A (JP)
Title: Radar system and radar signal processing device
Inventor: NIWA MASAHITO
IPC: G01S13/90
Filed: 2000-09-28
Abstract: PROBLEM TO BE SOLVED: To save the power, and to speed up the processing by automating the processing for obtaining the data related to the water surface condition from the obtained image data. SOLUTION: By a SAR consisting of an antenna 1, a transmission unit 2 and a signal processing unit 3, SAR image data are acquired. A memory unit 5 stores a template data base 5a of the image data on the water surface in the possible condition with a vector (an arrow) showing direction of the wave and the wave length. An interphase processing unit 4 divides the SAR image data into plural blocks so as to relate them with each template, and reads out the direction and the wave length of the wave corresponding to the template having the highest interphase value from the memory unit 5. A computing unit 6 computes the optimal approach course on the basis of the read data.
Patent JP-2002102320-A (JP)
Title: Deodorizing and freshness keeping device
Inventor: TOMOSAWA ATSUSHI
IPC: B01J35/02
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a deodorizing and freshness keeping device, which has high performance and does not require maintenance, combining a cold cathode- ray tube light emitting device for providing the stable ultraviolet light output of low temperature and a long service life with a photocatalyst material and adsorbent powder. SOLUTION: This deodorizing and freshness keeping device is provided with the cold cathode-ray tube light emitting device for radiating ultraviolet light and a cold air circulating route having a filter prepared by using a ceramic fiber, with which the photocatalyst powder is formed on the surface, and on the surface of a cold cathode-ray tube bulb in the cold cathode-ray tube light emitting device, a transparent conductive film and a pair of linear electrodes are provided.
Patent JP-2002105591-A (JP)
Title: High tensile strength steel sheet having excellent hot dip plating property
Inventor: ISHII KAZUHIDE
IPC: C22C38/58
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To provide a high tensile strength steel sheet free from the generation of unplating though Si and Mn are largely contained and having excellent hot dip plating properties. SOLUTION: This steel sheet has a componential composition containing, by mass, 0.01 to 0.20% C, <=1.5% Si, 1.2 to 3.5% Mn, <=0.1% Al, <=0.12% P, <=0.005% S, <=0.010% N and <=0.5% Cr, further containing one or more kinds selected from Ca, Y and rare earth metals by <=0.02% in total, and in which the content of S is suppressed in the relation with Ca, Y and rare earth metals.
Patent JP-2002102961-A (JP)
Title: Positioning and feeding device for work
Inventor: SAKAMOTO KENICHIRO
IPC: B21D43/10
Filed: 2000-09-29
Abstract: PROBLEM TO BE SOLVED: To achieve enhancement of productivity by clamping the position at which the number of time of change of clamping is smallest, in feeding a work by a manipulator. SOLUTION: In a front table 3 provided on the front of a shearing machine 1, the work W is butted against a butting member by an attracting device to be positioned. The manipulator 19 is provided with a main clamp 29 clamping the work W from the top and bottom and moving rotatably in the horizontal face and freely forwarding/retreating, and a subclamp clamping the rear end of the work W and freely forwarding/retreating. In a control device 17, a process simulation in the case where the center of the work W is clamped with the main clamp 29 in deciding the original point of the work W, is made previously to calculate the position of clamp change after the first time in this process simulation.  In a actual process, the work is subjected to the modification and correction to the position of the clamp change after the first time calculated by the process simulation and efficiently clamp changed, thereby resulting to reduction in the process time.
Patent JP-2001147604-A (JP)
Title: Electrophotographic device
Inventor: ISHIKAWA TOYOJI
IPC: G03G21/00
Filed: 2000-10-02
Abstract: PROBLEM TO BE SOLVED: To realize a mechanism which resolves sticking of toner to a transfer roll to be pressed to a photosensitive body. SOLUTION: A transfer device is formed of a hard transfer roll 21 on the surface of which a middle resistance layer having 106 to 1013 Ω cm volume resistivity is formed, and a cleaning mechanism 25 is provided which removes toner stuck to the peripheral surface of the transfer roll 21.
Patent JP-2002113903-A (JP)
Title: Latent image forming device, imaging device, controlling method for imaging device and process cartridge
Inventor: SHINOHARA SEIICHI
IPC: H04N1/113
Filed: 2000-10-12
Abstract: PROBLEM TO BE SOLVED: To solve the problem of the latent image potential irregularity on the photosensitive member even in the case of forming an electrostatic latent image on a photosensitive member using a multi-laser for simultaneously emitting light from a plurality of lasers in an electrophotography type imaging device. SOLUTION: In a format circuit 10 for developing printing data to pixel data as image data, a developing means 10a for developing the data to printable pixel data, and a judging means 36b for judgment on at which point laser simultaneous light emission is to be executed with reference to the developed image data are provided. Moreover, a controlling means 16 capable of optionally changing the laser light amount is provided. In the case of executing simultaneous light emission of two adjacent laser beams, the laser light amount thereof is increased. Moreover, a value for providing the same latent image potential is preset concerning the laser beam increase amount at the time of the simultaneous light emission.
Patent JP-2002120935-A (JP)
Title: Sucking part sealing mechanism of article supply device
Inventor: INOUE TAKESHI
IPC: B65G47/86
Filed: 2000-10-13
Abstract: PROBLEM TO BE SOLVED: To provide a sucking part sealing mechanism capable of securing a sealing state of a sucking part for supplying negative pressure to an article holding part moved along a process position passage by holding an article. SOLUTION: This sucking part sealing mechanism is provided with a compression spring 5E for energizing a rotary ring 5A integrally rotated with a rotary table 3A and a fixed plate 5B for slidingly contacting with the rotary ring 5A so as to be brought into close contact with each other. A groove 5Ab connected to a part holding part 4 is formed in the rotary ring 5A. A groove 5Bb connected to a sucking device and communicated with the groove 5Ab is formed on the circumference having the same diameter as the circumference provided with the groove 5Ab of a sliding contact surface of the fixed plate 5B. The compression spring 5E is arranged so that a line of action of the spring force turns in the direction almost orthogonal to the sliding contact surface of the rotary ring 5A and the fixed plate 5B on the circumference provided with the groove 5Ab and the groove 5Bb.
Patent JP-2002124534-A (JP)
Title: Rectilinear propagation estimating equipment and method of metal thin wire
Inventor: ASUKE TADAO
IPC: H01L21/60
Filed: 2000-10-13
Abstract: PROBLEM TO BE SOLVED: To reduce irregularity of estimation in rectilinear propagation estimation of a metal thin wire by visual observation. SOLUTION: This rectilinear propagation estimating equipment is provided with an object material holding means which suspends vertically the metal thin wire by a prescribed length from the tip, an illumination device for lighting the object material (it is preferably that light sources are arranged on both the right and left sides of the front of the object material), an imaging device for imaging the object material, and an image processing means for data- processing an imaged object.
Patent JP-2002122069-A (JP)
Title: Electromagnetic pump
Inventor: SAWADA TERUYA
IPC: F04B17/04
Filed: 2000-10-16
Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic pump using DC pulse current, and capable of obtaining sufficient capacity by a DC power source which is lower than a commercial power source. SOLUTION: A permanent magnet is mounted at a side opposite to the magnetic rod of an electromagnetic coil where the DC pulse current flows, and the repulsion from the permanent magnet is used as the moving energy of an electromagnetic plunger by the polarity produced on the electromagnetic plunger through the excitation of the electromagnetic coil.
Patent JP-2002080046-A (JP)
Title: Scatter preventing discharge port
Inventor: SHINODA KATSUHISA
IPC: B65D83/00
Filed: 2000-09-09
Abstract: PROBLEM TO BE SOLVED: To provide a scatter preventive discharge port which aims at eliminating a pulsating flow caused by an inflow of air when discharging a liquid, scatter of the liquid attributable to the pulsating flow and an interruption of the discharge without providing an air inlet separately from a discharge port. SOLUTION: An air separating inlet device 5 formed in various shapes is provided on a lower part of the discharge port, an air chamber 6 is formed, a liquid outlet 4 is provided on the bottom, and the air inlet 3 is provided on the outer periphery.
Patent JP-2002124562-A (JP)
Title: Disc carrier
Inventor: OKUMURA YASUNORI
IPC: H01L21/68
Filed: 2000-10-18
Abstract: PROBLEM TO BE SOLVED: To provide a disc carrier having excellent heat resistance, solvent resistance and controllability of surface resistance. SOLUTION: The disc carrier contains fluorine allyletherketone shown by formula (I) where X represents a halogen atom, a lower alkyl group or a lower alkoxyl group, q is an integer of 0-4, n is the degree of polymerization, m is an integer of 0 or 1, R1 is represented by formula (II) where X' represents a halogen atom, a lower alkyl group or a lower alkoxy group, q' is an integer of 0-4, p is an integer of 0 or 1 and R2 is a bivalent organic group and/or polycryanoallylether shown by formula (III) where Y' is an alkyl group, alkoxyl group, alkylamino group or alkylthio group of 1-12C which may have a substituent or allyl group, allyloxy group, allylamino group or allylthio group of 6-20C, Y2 is a bivalent organic group, and Z is the degree of polymerization.
Patent JP-2001321966-A (JP)
Title: Friction stir welding method
Inventor: ESUMI MASAKUNI
IPC: B23K20/12
Filed: 2000-10-19
Abstract: PROBLEM TO BE SOLVED: To easily conduct friction stir welding of an annular shape or a round shape (including a circular arc). SOLUTION: A rotary tool 50 is arranged to a spindle 30 of a numerical control machine tool. The spindle 30 is not inclined. A first member 70 and a second member 76 of the members to be joined are fixed to a table 20. At the state that the table is inclined so that the joining part of the first member 70 and the second member 76 is inclined to the axial center of the rotary tool 50, a section to rotate the table 20 is moved with respect to the rotary tool 50, the parts to be joined are subjected to friction stir welding. The inclination is required in friction stir welding.
Patent JP-2002090323-A (JP)
Title: Method for examining charge behavior in concrete
Inventor: TAKADA RYUICHI
IPC: G01N33/38
Filed: 2000-09-13
Abstract: PROBLEM TO BE SOLVED: To determine properties including the degradation of a concrete, in a non-destructive state. SOLUTION: Primary voltage V1 is applied to a concrete lump 1 through an insulating polymeric sheet 3 to determine the charge behavior in the concrete lump 1.
Patent JP-2002127425-A (JP)
Title: Ink jet recording head, its manufacturing method and ink jet recorder
Inventor: TSUJIMOTO AKIRA
IPC: B41J2/16
Filed: 2000-10-20
Abstract: PROBLEM TO BE SOLVED: To solve the problem of a conventional ink jet recording head that the required quantity of sealant is varied subtly every time due to warp of a grooved top plate or variation in the distribution of retaining spring load to often cause distortion of a liquid chamber separation groove, and since variation in the production lot of the grooved top plate or the retaining spring causes variation of the adjusting conditions for correction, adjustment is required forcibly for each production lot to cause deterioration of productivity. SOLUTION: Liquid chambers are separated surely by gradually decreasing the cross-sectional area at the forward end of a liquid chamber separation groove 13 along the ink ejecting direction thereof as compared with the cross-sectional area at the rear end. Productivity is enhanced by eliminating adjustment for each production lot of members from the production process.
Patent JP-2002130954-A (JP)
Title: Device and method for manufacturing sintered product
Inventor: MIKI TAKEYOSHI
IPC: B22F3/10
Filed: 2000-10-24
Abstract: PROBLEM TO BE SOLVED: To uniformly born and decompose a lubricant in a product to be molded and to provide a sintered product of good quality. SOLUTION: A muffle 21 in a dewaxing part 11 is heated from the outside by gas burners 22 and 23 of a heating means. Since the interior of the muffle 21 is brought into an indirect heating atmosphere temperature, differently from conventional arts that lubricant in a product to be molded is directly burnt or decomposed by a gas burner, the temperature of the internal part of the muffle 21 is not only uniformed but also a gas flow in a furnace is prevented from disturbance. As a result, lubricant in the product to be molded conveyed in the dewaxing part can be uniformly burnt and decomposed.
Patent JP-2001207375-A (JP)
Title: Method for producing textile fabric for printed wiring board, the resultant textile fabric for printed wiring board and prepreg for printed wiring board
Inventor: MIWA TAKU
IPC: D06C27/00
Filed: 2000-10-25
Abstract: PROBLEM TO BE SOLVED: To provide an epoch-making technique capable of reducing the voids in a glass fiber woven fabric to substantially zero. SOLUTION: The subject method for producing a textile fabric for printed wiring boards comprises opening a textile fabric 5 made by weaving warps 3 and wefts 4 each with a plurality of monofilaments 1 converged together; wherein an excessive tension is applied onto the warps 3, and in such a condition that the wavings of the resultant warps 3 come to a minimum, the textile fabric 5 is subjected to an appropriate opening treatment.
Patent JP-2002134846-A (JP)
Title: Electronic component mounting board and apparatus for reversing and transferring board
Inventor: OGITA MASAHARU
IPC: H01L21/50
Filed: 2000-10-30
Abstract: PROBLEM TO BE SOLVED: To arrange an electronic component mounting board 1 having alignment means, upset the board one turn and position it on a board mounting stage 8, thus transferring it. SOLUTION: A transfer stage 2 comprises positioning pins 4 to be inserted in holes of an electronic component mounting board 1 and clampers 3 for tightly holding the board 1 so as to upset and transfer the board positioned at a fixed point, thereby exactly transferring the board to the stage 7.
Patent JP-2002139950-A (JP)
Title: Fixing device, and image forming device having the same
Inventor: HANIYU YOSHIAKI
IPC: G03G15/20
Filed: 2000-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a belt fixing device which shortens wait time in temperature control at fixing mode switching or the like, and to provide a image forming device having the same. SOLUTION: A fixing device 1 has a first mode for performing fixation at a first temperature and a second mode for performing fixation at a second temperature lower than the first temperature. When fixation in the second mode is performed following the first mode, the state of a heat supply by a heater 6 is lowered than the state of a heat supply in the first mode before the fixation of the final sheet in the first mode. The reload temperature in the second mode is lowered than the reload temperature in the first mode. The image forming device is provided with the fixing device 1.
Patent JP-2002141073-A (JP)
Title: Fuel cell system for mobile body
Inventor: IWASAKI YASUKAZU
IPC: H01M8/04
Filed: 2000-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a fuel cell system for a mobile body of high efficiency and low cost. SOLUTION: With the fuel cell system for the mobile body with power of fuel cells (4) generating electricity with reforming gas and oxygen as a driving source, the fuel cells (4) are driven at constant load when desired load value necessary for operation of the mobile body or an average value of desired load value is under the given load value, and are controlled so as to operate under varied loads according to the desired load value or the average value of the desired load value. Therefore, request for resolution and accuracy of various sensors and flow-controlling valves to be fitted to the fuel cell system is alleviated, which enables cost reduction as well as improvement of mileage by dint of a continued efficient operation.