baber/WOPTO huggingface dataset:
Patent JP-2001196779-A (JP)
Title: Heat sink and its manufacturing method
Inventor: MATSUMOTO SHIRO
IPC: H05K7/20
Filed: 2000-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a heat sink which is capable of taking out hot fluid from hot air, or hot air from a hot fluid, or cold fluid from cold air, or cold air from cold fluid, making a heat exchange between a heating medium and the outside air. SOLUTION: Extruded shapes 5, 6, and 7 each possessing thin-walled parts 52 and 53, a rib 54 and a thick-walled part 51 are stacked up in layers through the intermediary of the ribs 54 in the thickness direction with the thick-walled parts 51 aligned with each other, gaps 8 are densely filled up with solder 10 to join the extruded shaped 5, 6 and 7 into one piece, a base plate 2 is composed of the bonded thick-walled parts 51, and the rest serves as fins 3. A recess is provided to each of the thick-walled parts 51 of the extruded shapes 6 and 7, to form a through-hole which extends vertically in the thickness direction and parallel to the ribs 54 when the extruded shapes 6 and 7 are stacked up, and a pipe 4 through which thermal medium flows is inserted into each of the through-holes.
Patent JP-2001196341-A (JP)
Title: Method of manufacturing semiconductor wafer
Inventor: HARADA SEISHI
IPC: H01L21/304
Filed: 2000-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing semiconductor wafer by which the flatness of the polished surface of a wafer can be improved and the polishing amount and, in its turn, the whole machining margin of the surface of the wafer can be reduced. SOLUTION: In the method of manufacturing semiconductor wafer, both the front and rear surfaces of the silicon wafer are low-damage ground by using a low-damage grinding wheel in the final duplex grinding step. Consequently, the front and rear surfaces of the wafer become highly flat. Then the rear surface of the wafer is finished to a satin surface in a rear-surface light wrapping step and lightly etched with an alkaline etchant in the next alkaline light etching step. Accordingly, the high flatness of the rear surface is maintained even after the etching and the polishing amount of the surface in a succeeding polishing becomes smaller. Consequently, a highly flat wafer is obtained as a product.  In addition, since the wafer is manufactured through these steps in which not only working damages but also machining margins are relatively less, the total machining margin of the wafer can also be reduced.
Patent JP-2001194200-A (JP)
Title: Flow meter
Inventor: KODAMA SANSHIRO
IPC: G01F1/68
Filed: 2000-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a flow meter which can accelerate the deceleration component in the vicinity of an inner wall surface in a low flow rate zone, and detect the flow rate even in the low flow rate zone. SOLUTION: A flow sensor 2 has a flow rate detection element disposed on an inner wall of a fluid pipe. An accelerating means accelerates the velocity component on the flow rate detection element decelerated by the friction coefficient of the fluid pipe. Since the velocity component on the flow rate detection element decelerated by the pipe friction coefficient is accelerated, the flow rate can be detected at a low flow rate considerably influenced by the pipe friction coefficient.
Patent JP-2001201660-A (JP)
Title: Optical plug
Inventor: ISHII TAKUJI
IPC: G02B6/36
Filed: 2000-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a rigid optical plug that a kevler is easily and surely fixed by caulking in between a stop ring and a caulking ring. SOLUTION: Relating to the optical plug which is provided with the stop ring 4 which is fitted and fixed into the rear part of a plug frame 2, an optical fiber cord 6 in which a ferrule 9 into the shaft center of which an optical fiber is fitted is disposed at the tip end shaft center of the plug frame 2 between with the stop ring 4 intervening a compressing spring 8 and which is inserted into the stop ring 4, and the caulking ring 5 which fixes by caulking the kevler 10 pulled out of the optical fiber cord 6 to between with the outer peripheral surface of the rear part 4a of the stop ring 4, the caulking ring 5 is formed so that the outside shape has a tapered diameter expanding gradually from the base end to the tip end of an internal hole 5c of the straight.
Patent JP-2001199165-A (JP)
Title: Heat sensitive recording material
Inventor: AONO TOSHIAKI
IPC: B41M5/26
Filed: 2000-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a multicolor heat sensitive recording material, which has high contrast coloring characteristics and can form a highly dense and color-mixing free high contrast image through the improvement of maximum coloring density (higher Dmax or the like) without bringing the damage of an image quality due to the rise of a fog density of the like. SOLUTION: This heat sensitive recording material has two or more layers developing colors having color phases different from each other on the support. In the heat sensitive recording material, at least one layer of the heat sensitive recording layer includes a solid dispersed matter having a melting point in a temperature region from the lowest coloring temperature to the lowest temperature necessary for obtaining the maximum coloring density (Dmax). Concretely, the heat sensitive recording material has two or more layers developing colors having color phases different from each other and an intermediate layer and/or a primer coating layer including the solid dispersed matter on the support.
Patent JP-2001199396-A (JP)
Title: Tilt device for marine propeller
Inventor: TAKAYANAGI HISAO
IPC: B63H20/08
Filed: 2000-01-18
Abstract: PROBLEM TO BE SOLVED: To prevent oil in a second tilt chamber from rapidly flowing into a tank to damage the tank during tilt down using a manual valve in a tilt device for a marine propeller. SOLUTION: The tilt device 20 for the marine propeller in which a first tilt chamber 35A, the second tilt chamber 35B of a cylinder device 21 and the tank 63 are interconnected through the manual valve 96 includes an orifice 203A in a pipeline 203 for connecting the manual valve 96 to the tank 63.
Patent JP-2001201584-A (JP)
Title: Automatic opening and closing device for door sealing mechanism
Inventor: OSAKI HARUO
IPC: G21C13/00
Filed: 2000-01-20
Abstract: PROBLEM TO BE SOLVED: To provide an automatic opening and closing device for door sealing mechanism capable of solving problems of a manually operating type heavy airtight door, or the problem that it is operable only when both hands are usable and the difficulty that an uniform fastening force (sealing degree) is hardly obtained, by adding a simple structure. SOLUTION: A door 1 having sealing mechanisms 4-8 for pressing the end side of the door 1 onto a doorframe comprises an electric releasing means for performing the release of the sealed state by the sealing mechanisms 4-8, a self-closing means 2 for automatically returning the door 1 from the open state to the close state, a door close detecting means 15 for detecting the door close state, and sealing mechanisms 9-11 having, as drive source, an electric motor 10 operated when the door close state is detected by the door close detecting means 15.
Patent JP-2001202288-A (JP)
Title: Device and method for patrolling alteration of electronic information
Inventor: TAKUBO AKIO
IPC: G06F21/60
Filed: 2000-01-21
Abstract: PROBLEM TO BE SOLVED: To obtain a device and method for patrolling the alteration of electronic information based on a viewpoint that a victim of the alteration of electronic information is an electronic information preparing person. SOLUTION: The patrol part of a server 2 regularly compares a current digest extracted from a current home page where current check information is embedded, with a collation digest prepared by a collation digest preparing part and when they are not the same, the patrol part informs an electronic information source preparation source computer 1 being the preparation source of the current home page that the current home page is altered. Furthermore, the third party is prohibited from accessing to the current home page.
Patent JP-2001209218-A (JP)
Title: Rotating body unit
Inventor: TAKIGAWA JUNYA
IPC: G03G15/16
Filed: 2000-01-24
Abstract: PROBLEM TO BE SOLVED: To provide a rotating body unit capable of preventing the lowering of rotating accuracy with a simple constitution and easily positioned in the longitudinal direction. SOLUTION: This unit is a photoreceptor drum unit equipped with a driving shaft 5 transmitting driving force from a motor, a cylindrical photoreceptor drum which can be attached to/detached from the driving shaft, a 1st flange attached to one end of the photoreceptor drum, a 2nd flange attached to the other end of the photoreceptor drum, a driving transmitting member attached to the driving shaft and a holding member holding the driving transmitting member on the driving shaft, and fitting holes through which the driving shaft is inserted are formed on the 1st and the 2nd flanges. The driving shaft is equipped with a level difference 17 at its one end, an abutting surface 19 on which the 1st flange abuts is formed on the level difference, and a through-hole 23 through which the driving transmitting member is inserted is formed at the small diameter part 5b of the level difference, and the driving transmitting member inserted through the through-hole is engaged with the 1st flange.
Patent JP-2001208813-A (JP)
Title: System for determining residual life of lead-acid battery for motor-driven forklift
Inventor: MATSUOKA KAZUYA
IPC: B66F9/24
Filed: 2000-01-25
Abstract: PROBLEM TO BE SOLVED: To provide an easily operable residual life determining system reduced in dispersion for a lead-acid battery for a motor-driven forklift. SOLUTION: A voltage value V0 of the lead-acid battery in no load when the battery is fully charged is measured to be stored. Then, a current value I1 flowing in the battery and a voltage value V1 in a locked condition when the motor-driven forklift is tiltedly operated are measured to be stored. A voltage decrease (V0-V1) is found based on the voltage value V0 in the no load and the voltage value V1 in the locked condition. The voltage decrease (V0-V1) is divided by the current value I1 to find an internal resistance value R of the lead-acid battery, and the residual life of the battery is determined using the resistance value R to be displayed.
Patent JP-2001218093-A (JP)
Title: Image pickup device
Inventor: NAKAO SOICHIRO
IPC: G03B17/02
Filed: 2000-01-28
Abstract: PROBLEM TO BE SOLVED: To provide a camera provided with a mode dial and a cross key in compact structure. SOLUTION: The mode dial 310 is provided almost horizontally on the upper surface of a housing, and also made to turn among three stop positions to select any of three modes, and a mode switch substrate 320 having two switches detecting the three modes by the stop positions of the mode dial 310 is installed almost perpendicularly to the dial 310 inside the housing.
Patent JP-2001211839-A (JP)
Title: Method of producing jelly containing carbon dioxide gas
Inventor: TOYAMA KAZUYOSHI
IPC: A23L21/10
Filed: 2000-02-01
Abstract: PROBLEM TO BE SOLVED: To provide a method of producing a jelly containing carbon dioxide gas and suitable for mass-production. SOLUTION: The objective jelly is produced by preparing a liquid jelly raw material containing a gelling agent, cooling the prepared liquid jelly raw material under flowing to form a fluid gel, introducing carbon dioxide gas into the fluid gel under pressure, sealing the carbonated fluid gel in a container, heating the sealed container to convert the fluid gel into sol and cooling the container to gelatinize the content of the container.
Patent JP-2001213506-A (JP)
Title: Conveying chain for loading article, disc for chain orbital turning, and conveyor formed by combining chain and disc
Inventor: SHIBAYAMA KATSUTOSHI
IPC: B65G17/08
Filed: 2000-02-01
Abstract: PROBLEM TO BE SOLVED: To provide a conveying chain for loading article capable of stably conveying articles, and a conveyor for orbitally turning a chain and loading articles. SOLUTION: A conveying chain 10 is endlessly formed by a link 12 with connecting pins 14. The link 12 comprises a top plate 22 projecting to axial both sides at an upper part of a link body 20 and a floating preventing piece 24 projecting to both sides in the width direction at a lower part of the link body 20. A vertical face of the link body 20 is provided with an upper vertical face 28 upper than a pin connecting position and a lower vertical face 30 lower than the pin connecting position with respect to a recessed part 26. A circumferential face of a disc 32 for chain orbital turning is provided with an upper vertical face 40 and a lower vertical face 42 with respect to a projecting part 38. A diameter ϕB of the lower vertical face 42 is smaller than a diameter ϕA of the upper vertical face 40.
Patent JP-2001212727-A (JP)
Title: Cylinder head finishing machine
Inventor: YAMAMOTO TAKASHI
IPC: B23Q3/06
Filed: 2000-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder head finishing machine capable of machining two faces of a cylinder head on the same station at the same time, simplifying machining system constitution, reducing an installation space, and shortening the machining time. SOLUTION: On both sides of a workpiece holding device 20 holding a cylinder head W, a first machining device 21 machining a first worked face Ws1 and a second face machining device 23 machining a second worked face Ws2 are arranged face to face with each other. The workpiece holding device 20 is provided with a regulating member 26 touching the upper face of the cylinder head W, a first clamping member 28 extending while bypassing the first worked face Ws1 and having a clamping part 30 clamping the first worked face Ws1 side part in the cylinder head W between it and the regulating member 26, and a second clamping member 36 clamping the opposite side to the first worked face Ws1 in the cylinder head W between it and the regulating member 26.
Patent JP-2001220182-A (JP)
Title: Interlayer for laminated glass
Inventor: SANNOMIYA YOSHINARI
IPC: C03C27/12
Filed: 2000-02-03
Abstract: PROBLEM TO BE SOLVED: To provide an interlayer for laminated glass which allows the improvement of productivity of a degassing process and the reduction of failure due to bubbling, etc., in the production of laminated glass. SOLUTION: This interlayer for laminated glass consisting essentially of polyvinylacetal resin is provided with recessed grooves on at least one surface thereof which has embossing of random shape. Further, this interlayer for laminated glass is featured in such a manner that the height distribution of groove depth is >=5% of the groove depth, the pitch of a groove distribution is <=2 mm and the grooves are given in the flow direction of the interlayer for laminated glass.
Patent JP-2000328178-A (JP)
Title: Steel excellent in toughness of heat-affected zone and its production
Inventor: KIYOSE AKITO
IPC: C22C38/58
Filed: 2000-02-04
Abstract: PROBLEM TO BE SOLVED: To produce steel having good HAZ(heat-affected zone) toughness even in large heat input welding in which the amt. of heat to be inputted in welding exceeds 20 kJ/mm. SOLUTION: This steel excellent in HZA toughness has chemical components contg., by weight, 0.03 to 0.2% C, <=0.4% Si, 0.5 to 2% Mn, <=0.015% P, <=0.006% S, 0.001 to 0.01% Al, 0.005 to 0.02% Ti, 0.0001 to 0.001% Mg, 0.001 to 0.004% O and 0.0025 to 0.006% N and moreover contg. one or two kinds of 0.0005 to 0.004% Ca and 0.0003 to 0.003% rare earth metals, and the balance Fe with inevitable impurities, in which TiN of 0.01 to <0.5 μm containing oxides composed of Mg and Al is present by >=10000 pieces/mm2, and the average value of (Ca+REM)/Al in oxides of 0.5 to 5 μm dimensions >=0.2.
Patent JP-2001214438-A (JP)
Title: Method for construction cast-in-place concrete pile, and preload device onto ground under bottom of cast-in- place concrete pile.
Inventor: ISHIBASHI TADAYOSHI
IPC: E02D5/34
Filed: 2000-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a construction method and a device therefor that facilitate installation and maintenance of an injection bag at the bottom of a pile pit, and can prevent wraparound of cast concrete under the bad. SOLUTION: In construction method for a cast-in-place concrete pile, a grout is injection in an injection bag 1 at the bottom end of a cage 11, sent to the bottom of a pile pit 10, and a preload is loaded onto a bottom ground 10b under the pile. The bottom face of the injection bag 1 is formed into a protruded shape in the direction of the pile bottom, so as to reduce resistance of fluid in the pile pit when the injection bag 1 is sent to the bottom of the pile pit 10.
Patent JP-2001223840-A (JP)
Title: Remaining medium detector for image scanner
Inventor: MOGI MASATOSHI
IPC: H04N1/00
Filed: 2000-02-09
Abstract: PROBLEM TO BE SOLVED: To solve the problem that a user cannot help remodeling a hardware device or relying on the load on a human in order to prevent an unnecessary medium from being left in an image scanner in an unattended terminal or the like. SOLUTION: An image preliminarily read with nothing in the image scanner, and compressed data of this image data are stored and preserved, and a medium is read again after prescribed transaction processing, and image data is compressed, and the image compression file size obtained with nothing in the image scanner and that obtained by reread are compared with each other to detect whether there is a remaining medium or not by only the control of software.
Patent JP-2000184811-A (JP)
Title: Sulky planting machine
Inventor: OKUDA HIROSHI
IPC: A01B69/02
Filed: 2000-02-14
Abstract: PROBLEM TO BE SOLVED: To provide a sulky planting machine so designed as to be equipped with a manually operable forced lift operation device and a specific operative means as well to facilitate operation such as ascending driving of the planting device and also operation of a marker. SOLUTION: This sulky planting machine is such one as to be equipped with a mechanism 4 for ascendingly/descendingly driving a planting device 3 mounted on the traveling machine body 1, a planting clutch for transmitting mechanical power to the planting device 3, and a marker 15 operable to housed posture and acting posture for marking on the field surface as the traveling machine body advances, and as to work in such a manner that the planting device 3 is ascendingly driven to a predetermined height or descendingly driven by the mechanism 4; furthermore, this sulky planting machine has a manually operable forced lift operation device and an operative means 17 allowing the marker 15 to operate to an acting posture and operating so as to turn the planting clutch on.
Patent JP-2001219858-A (JP)
Title: Steering damper
Inventor: SONODA HIROTETSU
IPC: B62D5/083
Filed: 2000-02-14
Abstract: PROBLEM TO BE SOLVED: To improve the steering following property, and to simplify, reduce the size of, and the cost of a structure of a steering damper which can mitigate the shock of the kickback etc. SOLUTION: This steering damper comprises a flow passage selector valve to switch and connect a pump, a tank and right and left chambers of a power cylinder according to the steering operation, and right and left cylinder passages 3 and 4 to be connected to the right and left chambers. Right and left dampers 10A, 10B comprise variable throttle valves 6, 7 provided in the middle of each cylinder passage to limit the inflow from the power cylinder to the flow passage selector valve, and pilot operation check valves 8, 9 connected in parallel thereto to permit the inflow from the flow passage selector valve to the power cylinder. A pilot plunger 30 provided with these components in the vicinity of each passage implementing the sliding operation between the right and left dampers is provided.  Each end of the pilot plunger faces the right and left cylinder passages to form a pressure receiving surface to receive each fluid pressure, and also to form a working surface actuated by the fluid pressure in one passage to open the pilot operation check valve of the other passage.
Patent JP-2000306516-A (JP)
Title: Plasma display panel and electron device
Inventor: AKIBA YUTAKA
IPC: H01J11/34
Filed: 2000-02-10
Abstract: PROBLEM TO BE SOLVED: To achieve high brightness of a panel, high light emitting efficiency and low unnecessary electromagnetic radiation (EMI). SOLUTION: In a plasma display panel 1, an address electrode 15 and display electrodes 18, 19 are crossed on a back substrate 4, and a metal partition wall 5 serving as a partition wall 24 specifying a display cell 2 is formed into a laminated structure of metal sheets 5a, 5b1, 5b2. The back substrate 4 inside the display cell 2 is partitioned via a partition wall 25 composed of the metal sheets 5b1, 5b2. A phosphor layer 23 is disposed in the partition wall 5 or 25, and further, a phosphor layer 12 is provided on a front substrate 3. A flat electrode 10 common to all of the display cells 2 is disposed on the side of the front substrate 3.  With this constitution, the partition wall 24 of the metal partition wall 5, the partition wall 25 and a transparent electrode in the front substrate 3 remarkably elongates a discharge path 26, thereby suppressing partition wall dispersion of charged particles at the time of formation of a positive column so as to maximize discharging efficiency. Consequently, the brightness of the panel and light emitting efficiency can be enhanced. Simultaneously, the flat electrode 10 can function as a shield of unnecessary radiation.
Patent JP-2001227834-A (JP)
Title: Air conditioner
Inventor: KITAKAKIUCHI TOSHIYUKI
IPC: F24F1/00
Filed: 2000-02-18
Abstract: PROBLEM TO BE SOLVED: To provide an air conditioner in which ice formed at fin surfaces of an indoor heat exchanger is not melted, evaporated, gasified and emitted into a room at the time of defrosting operation. SOLUTION: An indoor heat exchanger 6 comprised of a vertical segment 6a, a rear slant segment 6b and a lower slant segment 6c is provided with two flow systems composed of a first refrigerant flow passage 9 and a second refrigerant flow passage 10. A third branch pipe 17 provided with a first solenoid opening and closing valve 11 is connected to the first refrigerant flow passage 9. A second branch pipe 15 provided with a second solenoid opening closing valve 12 is connected to the second refrigerant flow passage 10. Refrigerant is circulated alternatively to each of the flow passages to perform a defrosting operation in which a heating operation and a weak cooling operation are alternatively repeated.
Patent JP-2001227637-A (JP)
Title: Control device for automatic transmission
Inventor: YUASA HIROYUKI
IPC: F16H61/06
Filed: 2000-02-18
Abstract: PROBLEM TO BE SOLVED: To suppress racing and torque drawing in a torque phase in an automatic transmission shifting by changing engagement of a friction engaging element. SOLUTION: The oil pressure of the friction engaging element is determined from the estimate of input shaft torque, a critical torque ratio and ramp- controlled allowance. At the torque phase, the variation per unit time of actual turbine rotating speed Nt to reference turbine rotating speed obtained from output shaft rotating speed No and a gear ratio (i) before a shift is integrated, and a correction factor GAIN for correcting the ramp gradient of the allowance on the engagement side is set on the basis of the integrated value at a point of time when specified time TIMER8 elapses from the start of the torque phase. At the subsequent torque phase, the engagement side oil pressure is computed according to the allowance corrected with the correction factor GAIN.