baber/WOPTO huggingface dataset:
Patent JP-H0549266-A (JP)
Title: Temperature rise detecting circuit for inverter switching element
Inventor: KATO YUKIO
IPC: H02M1/00
Filed: 1991-08-07
Abstract: PURPOSE:To stabilize operation by employing the output from a comparator as a temperature rise detection signal and employing a maximum predicted value of operated temperature as a direct comparison object when an upper limit is set thereby predicting the junction temperature of element accurately. CONSTITUTION:A VCE loss operating unit 1 receives an average value of inverter output current and operates an average loss against saturated voltage of a switching element (not shown). A switching loss operating unit 2 receives an average value of output current and carrier frequency and operates an average switching loss of element. A temperature difference operating unit 3 divides the sum of both losses by the thermal resistance between the junction cases of the element thus operating the average value of temperature difference between the cases. The operating unit 3 operates a maximum instantaneous value by multiplying the average temperature difference by a predetermined conversion coefficient. A comparator 7 compares the sum of maximum instantaneous temperatures of cooling body, i.e., the junction temperature of the element, with an upper limit thereof and produces a temperature rise detection signal.
Patent JP-H0249995-A (JP)
Title: Built-in type recirculation pump for nuclear reactor
Inventor: SUGA KAZUO
IPC: F04D7/08
Filed: 1988-08-09
Abstract: PURPOSE:To relieve the discharge amount of a recirculation pump for recirculating coolant through a core section of a boiling water type nuclear reactor, during a pump trip, by using a material having a density higher than that of the material of a rotary shaft of a motor for rotating the pump, for a rotary part of the motor so as to increase the inertia moment thereof. CONSTITUTION:An internal pump 8 is composed of a pump section 9 consisting of an impeller 4 and a diffuser 5 which are disposed in a pressure vessel 1, and a motor section 10 disposed in a motor casing 3 welded to a pump nozzle 2 in the pressure vessel 1. The motor section 10 composed of a stator 6 and a rotor 7, and an upper end ring 11 and a lower slide disc 12 of the motor section 10 is made of tungsten alloy having a density higher than that of carbon steel or stainless steel used for a shaft 14 of the motor section 10. Accordingly, the inertia moment of the motor increases so as to relieve an abrupt decrease in discharge amount during a pump trip, thereby it is possible to enhance the soundness of fuel and the reliability.
Patent JP-H1092741-A (JP)
Title: X-ray mask and manufacture thereof
Inventor: LEE DON-HEE
IPC: G03F1/22
Filed: 1997-07-23
Abstract: PROBLEM TO BE SOLVED: To improve accuracy and reliability of an X-ray absorber pattern by forming an absorber pattern on an oxide film on a membrane, and forming a substrate under the membrane in such a manner that the membrane region where the absorber pattern is formed is exposed. SOLUTION: A membrane 31 is formed on a Si substrate 30, and a mask 32 formed on the lower surface of the Si substrate 30 is patterned to expose the Si substrate 30. Then, an oxide layer is formed on the membrane 31, and the Si substrate 30, exposed by using the mask 32 is anisotropically etched. Then, using a resist deposited on the oxide layer as a mask, the oxide layer is etched, thus forming an oxide layer pattern 33'. Then, an absorber 36 is formed on the oxide layer pattern 33'. The absorber 36 is removed to a predetermined depth, so that the oxide layer pattern 33' is exposed, and then the oxide layer pattern 33' is removed by etching so that the absorber 36 remains between the oxide layer patterns 33'. Thus, an X-ray mask is provided.
Patent JP-S6175892-A (JP)
Inventor: IKUTA SUNAO
IPC: C02F5/08
Filed: 1984-09-20
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H0639610-A (JP)
Title: Throwaway tip and cutting tool
Inventor: OTANI RIICHI
IPC: B23B27/14
Filed: 1992-07-23
Abstract: PURPOSE:To perform the cutting of end surface parts, outer diameter parts and joggling surface parts with a part of a cutting blade having a large whole circumferential length, and perform the cutting of corner parts at a small radius continuously. CONSTITUTION:A cutting tool 1 is provided with a throwaway tip 3, which has a circular at a radius [R=(d)+(r)] for cutting non-corner parts such as the surface parts, outer diameter parts and joggling surface parts of a work, and a circular at a radius (r) for cutting the corner parts [R>(r) and (r) includes 0] at least one part of the outline thereof, and a turning control mechanism for turning the throwaway tip 3 to the direction of the cutting blade or stopping it at a position having a desired outline for a work.
Patent JP-S6258751-A (JP)
Title: Polarity switching circuit
Inventor: TSUKAGOSHI TAKASHI
IPC: H04L25/02
Filed: 1985-09-06
Abstract: PURPOSE:To dissolve a delay time between an output data signal and a clock signal by inserting a polarity switching part at an output side to the front of a flip-flop circuit at the last stage. CONSTITUTION:When a polarity selection signal of low level from a polarity selection signal input terminal 1 and a reset signal of high level from a reset signal input terminal 2 are inputted, a signal having the same polarity as the data signal of a data signal input terminal 3 is outputted to a data signal output terminal 6. By setting the polarity selection signal at a high level, the polarity of an input/output at each of polarity switching parts 11 and 13 is inverted and at a signal process part 12, the data signal, the polarity of which is inverted, is processed and the signal having the same polarity as the data signal of the data signal input terminal 3 is outputted to the data signal output terminal 6.
Patent JP-H0644385-A (JP)
Title: Z buffer control circuit
Inventor: MURATA MASAHIRO
IPC: G06T15/40
Filed: 1992-07-24
Abstract: PURPOSE:To provide high-speed plotting by simultaneously calculating a Z value for plural picture elements at the time of plotting a horizontal line concerning the acceleration of Z buffer processing in the field of three-dimensional graphics. CONSTITUTION:A three-dimensional image display device is provided with a frame memory 4 for simultaneously writing the plural horizontal picture elements and for permitting the write of the individually designated picture element among them, Z buffer memory 3 for simultaneously reading/writing plural values corresponding to thise picture elements and for permitting the write of the respectively designated picture element among them, plotting mode designation flag 27 to distinguish whether plotting is a horizontal line or a straight line at any arbitrary angle, and plural Z value arithmetic circuits 30 and when the plotting mode designation flag 27 designates the plotting of the horizontal line, the plural bits of the Z buffer memory 3 are simultaneously processed.
Patent JP-S6357427-A (JP)
Title: Feeder for electronic part housing stick
Inventor: ONO SUKEYASU
IPC: B65G59/06
Filed: 1986-08-25
Abstract: PURPOSE:To make a stick so as not to be curved, by holding a stick laminated body in a housing member in a way of holding the stick at the lowermost stage between both side walls. CONSTITUTION:When a cylinder 16 is driven and a stick receiver 17 is made to go up, rollers 18 and 19 come into contact with each of ramps 13G and 13H of a stick housing part, making them so as to be expanded wide to the outside in consequence. When the stick receiver 17 is further made to go up, these ramps 13G and 13H are still more expanded wider whereby, according to this motion, both pinch parts 13E and 13F are also widened to the outside, therefore rubber pads 14A and 14B come to be unable to hold a stick 11, and a stick laminated body comes to drop down by its own gravity, so that a stick 11A at the lowermost stage comes to be received by the stick receiver 17 in consequence. Next, when the cylinder 16 is driven and the stick receiver 17 is made to go down, engagement between rollers 18, 19 and ramps 13G and 13H is released, and these pinch parts 13E, 13F and pads 14A and 14B again hold the stick elastically in between.
Patent JP-H0360829-A (JP)
Title: Manufacture of sheet metal part such as primary cylinder and the like
Inventor: KANEMITSU TOSHIAKI
IPC: B21D51/16
Filed: 1989-07-28
Abstract: PURPOSE:To reduce the cost of a sheet metal part such as a primary cylinder, etc., by using die assemblies, a pressing roller and a rolling roller. CONSTITUTION:The central part of a circular steel sheet is drawn by the die assemblies 1, 2, 3, 4, 70 to form a collar cup body 64, the surfaces of the cup part 62 and the collar part 63 are hardened and, further, the peripheral edge part of the collar part 63 is bent and formed into an annular bent piece 61. Furthermore, a rolling roller is pressed to the outer peripheral surface of the collar part 63 containing an annular bent line to form a groove to engage with a seal ring. In this way, it is possible to reduce the cost of the primary cylinder having an enough strength in spite of a thin sheet stock.
Patent JP-S6354445-A (JP)
Title: Production of porous film having flexibility
Inventor: NAGAO KAZUTAKA
IPC: C08J9/00
Filed: 1986-08-22
Abstract: PURPOSE:To obtain the title film excellent in flexibility and moisture permeability, by embossing a synthetic film filled with an inorganic and/or organic filler in a molten state and stretching the film at least unidirectionally. CONSTITUTION:A molten resin 3 comprising 100pts.wt. synthetic resin (A) (e.g., PE) and 40-400pts.wt. inorganic and/or organic filler (B) (e.g., CaCO3) of a mean particle diameter <=30mu is fed from the molding die at the forward end of an extruder 1 between an emboss roll and a press roll 5, embossed, preheated, if necessary, to a temperature lower than the softening point with preheating rolls 6 and 7 and stretched at least unidirectionally at a ratio >=1.2 with pinch rolls 8 and 9 to obtain the title film 10 having fine fractured pores.
Patent JP-H1037741-A (JP)
Title: Exhaust emission control device for engine
Inventor: MANAKA TOSHIO
IPC: F01N13/02
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To enable determination of deterioration of preactivation function of a catalytic converter by obtaining start-up characteristics of a catalyst from a cold state to a heated state. SOLUTION: A preactivation catalyst 8A whose activation is advanced and a pre-catalyst 8B for securing cleaning efficiency after activation are arranged on a front stage of a main catalyst 9. A control unit 12 calculates start-up characteristics of an exhaust emission control ratio in respect to a catalyst temperature through input of the temperature of an auxiliary catalyst 8 and data from exhaust sensors 5, 6 across the catalyst 8, and steady-state characteristics after start-up. The actual start-up characteristics are compared with the reference one. In the case that the resultant dislocation rate is a specified rate or more, deterioration of the preactivation catalyst 8A is determined. When the steady-state characteristics are deteriorated by a specified rate or more, the constant characteristics of the pre-catalyst 8B is determined to be deteriorated.
Patent JP-H06339550-A (JP)
Title: Manufacture of golf club head
Inventor: TANAKA SHOJI
IPC: B29C70/34
Filed: 1993-07-16
Abstract: PURPOSE:To facilitate the manufacture with limited variations in products and with a better head balance by enabling the use of long carbon fibers to achieve a strength even with a less thickness, complete integration of inner and outer shells and a larger size with a light weight. CONSTITUTION:A cup-shaped core 1 is molded in such a manner that it will not be deformed under pressurization in the molding of a synthetic head body in which a recess and a protrusion for positioning the position of the core are formed with first top and bottom dies. The core 1 in which an open surface of a hollow part is covered with a lid 1A made of a synthetic resin is positioned in the a second bottom die 200 utilizing the recess and protrusion and SMC 10 is fed into the second top and bottom dies 7 and 200 to cover the core 1 with the head body. A pin insertion hole 5 for inserting a shaft is formed in a head body while being formed in the core 1 and the lid 1A or formed in the head body alone.
Patent JP-H0841650-A (JP)
Title: High silicon steel sheet excellent in workability
Inventor: WADA MORIHIRO
IPC: B05D3/02
Filed: 1994-07-29
Abstract: PURPOSE:To produce a high silicon steel sheet having good workability even after the formation of an insulated film. CONSTITUTION:This high silicon steel sheet having an insulated film is the one in which, in a high silicon steel sheet contg. >=4wt.% Si, the surface is applied with a liq. coating material, and after that, drying and baking treatment is executed at <=350 deg.C. With hardly deteriorating the bendability of the base material steel sheet, excellent workability can be obtd.
Patent JP-S5988255-A (JP)
Title: Dressing method of cutting wheel
Inventor: OKU TSUNEO
IPC: B24B53/00
Filed: 1982-11-12
Abstract: PURPOSE:To enable undulation to be almost removed from the periphery of a wheel without causing generation of any taper, by electric discharge machining the cutting wheel between both electrodes arranged at a distance apart in a position where both side faces of the wheel can be machined by the same amount equal to almost half the maximum value of undulation. CONSTITUTION:A cutting wheel 1 is mounted to a rotary flange 2, and a machined material is fixed behind an electric discharge dressing device on a table 12 and moved to this side of the direction Y being shallowly cut by the cutting wheel 1 then downward an optical system 14, then a groove width is drawn by a TV camera 8 on a monitor 11 as reference lines 9. Next, both electrode end images 10 of a distance B between both electrodes 3a, 3b are positioned so as to be inside the reference lines 9, and the distance between the both electrodes are set by a fine adjustment screw 5 so as to be almost half the maximum value (a) of undulation by information from the monitor 11. Then moving the table 12 while it is rotated, pulse voltage from a power supply 6 is applied to simultaneously electric discharge machine both side faces of the wheel by the equal amount. In such way, the undulation can be almost removed without causing generation of any taper on the peripheral part of the wheel.
Patent JP-H0538216-A (JP)
Title: Reaping pre-treating device for combine
Inventor: SATO SHIGEO
IPC: A01D34/24
Filed: 1991-08-07
Abstract: PURPOSE:To protect an auxiliary reaping device by changing posture of the auxiliary reaping device to housing posture when height of a reaping device is vertically deviated from set range. CONSTITUTION:In conditions where detection height by a detection means 22 for detecting height of a reaping device 11 is vertically deviated from set range, an auxiliary reaping device 16 is changed to housing posture by a control means. The auxiliary reaping device is provided in a reaping frame 10 so as to be able to freely change to operating posture and retreating posture.
Patent JP-H0732918-A (JP)
Title: Electric line abrasion measuring device
Inventor: OKU GOJI
IPC: G01N29/26
Filed: 1993-07-14
Abstract: PURPOSE:To measure the abrasion of an electric line (a solid trolley) fixed by facing its sliding surface in the lateral direction. CONSTITUTION:In this electric line abrasion measuring device, an ultrasonic sensor provided to a sensor frame 19 is scanned along the electric lines X and Y to measure the abrasion, and a guide roller to hold an interval with the ultrasonic sensor by contacting to the surface of the electric line, and a finger roller to hold the electric line are provided to the sensor frame 19. A slide mechanism to slide an L-shaped plate 39 and the like horizontally along a guide rail 34, and to abut the frame 19 to the electric line; a following mechanism to slide the frame 19 along the guide rail 14, and to synchronize it to the up and down movement of the electric line; and an oscillating mechanism to correspond the angle of the sensor frame 19 to the inclination of the electric line; are also provided.
Patent JP-H1036000-A (JP)
Title: Paper folding device
Inventor: MIKAMI MASAHITO
IPC: B65H45/20
Filed: 1996-07-26
Abstract: PROBLEM TO BE SOLVED: To fold a sheet of paper without entailing those of rumples, double folding and folding crush by straightening a charging position of this paper irrespective of paper sizes and folding methods. SOLUTION: A first folding roll pair 10 and a second folding roll pair 12 are opposedly set up at the specified space, and a guide plate 18, whose tilt angle is varied, is set up in the space. When paper is fed into a guide member 24 from a feed roll 26, this guide member 24 is rocked to the side of the first folding roll pair 10, guiding a tip of the paper to this folding pair 10. At this time, a wire 44 is pulled up by a solenoid 18, and a tilt angle of the guide plate 18 is made so as to become a down grade toward the side of the first folding roll pair 10. With this, a charging angle of the paper to the guide plate 18 becomes lessened, whereby its position will not fall into disorder due to buckling, and thus it is guided to a nip point of the first folding roll pair 10 accurately, so that those of rumples, double folding and folding crush will not occur at all.
Patent JP-S6440012-A (JP)
Title: Rice cooker
Inventor: OKUSE TOMOAKI
IPC: A47J27/00
Filed: 1987-08-07
Abstract: PURPOSE: To eliminate the filling or hardening work of epoxy resin to enhance the workability by simultaneously mounting a temperature sensor by a mounting member for mounting a heater on a outer lid. CONSTITUTION: A temperature sensor 2 is inserted into a hole formed on a shaft 3, and fixed simultaneously with a heat retaining heater 5 by the mounting member 7 of the heat retaining heater 5. The temperature sensor 2 is simultaneously mounted on an outer lid 1 by the mounting member 7 for mounting the heat retaining heater 5 in this way, whereby an adhesive exclusive for fixing the temperature sensor 2 to the outer lid 1 is dispensed with.
Patent JP-S6091565-A (JP)
Title: Nonaqueous electrolyte battery
Inventor: YAMAMOTO KOUHEI
IPC: H01M6/16
Filed: 1983-10-25
Abstract: PURPOSE:To improve the internal resistance characteristic and the discharge performance of a lithium battery by dissolving lithium perchlorate in 1,3-dioxolan within a specified concentration range. CONSTITUTION:Lithium is used as a negative active material 20 while lead bismuth is used as a positive active material 16. A separator 18 consists of a porous film made of a member such as a nonwoven polypropylene fabric which is impregnated with nonaqueous electrolyte. The electrolyte is prepared by dissolving lithium perchlorate used as an electrolyte in 1,3-dioxolan used as a solvent. The molar concentration of lithium perchlorate in the electrolyte is adjusted to within the range of 2.5-4.0.
Patent JP-H0861434-A (JP)
Title: Toothed belt
Inventor: HAMANO NAOKI
IPC: F16G1/28
Filed: 1994-08-23
Abstract: PURPOSE: To provide a toothed belt of such a structure that permanent set is restrained and heat-resisting aging properly is improved so as to improve fatigue resistance, and occurrence of cracks at the time of repeated starting under a low temperature can be restrained. CONSTITUTION: A back rubber layer 1, a core body 2, a tooth rubber layer and a tooth canvas layer 4 are stacked in order. A rubber composite for forming the back rubber layer 1 and the tooth rubber layer 3 contains 40-75wt. parts carbon black, the iodine adsorption quantity of which is 35mg/g or less and the DBP oil absorption of which is 120-160ml/100g to l00wt. parts nitryl hydride rubber.
Patent JP-S6257624-A (JP)
Title: Production of plug for waste gas filter
Inventor: YONEMURA MASAAKI
IPC: B01D39/20
Filed: 1985-09-07
Abstract: PURPOSE:To increase the amt. of waste gas capable of passing the end face of a filter cell and to reduce the pressure drop by mixing a combustible granular substance and a raw ceramic material, baking the mixture and forming the title porous plug. CONSTITUTION:Polyvinyl alcohol, methyl cellulose and starch paste are added to a raw ceramic material such as porous ceramic calcined powder having specified composition, clay and fibrous ceramics to provide appropriate plasticity. The combustible granular substance of org. polymers such as polyethylene, polypropylene and polystyrene is mixed into the raw material to obtain a plug material. The material is packed into the opening of the end part of the cell and baked when the material is molded into a honeycomb body. The combustible granular substance is vanished by the baking and the vanished part is left as the void.
Patent JP-H0518415-A (JP)
Title: X-y table of thin steel plate
Inventor: ANADA KATSUYA
IPC: B23Q1/62
Filed: 1991-07-12
Abstract: PURPOSE:To form an X-Y table in compact and lightweight structure by consolidating a bed, a cross-table, and a table all made of thin steel plate into a treble construction, and arranging so that the three members can directly move straight with a group of rolling elements. CONSTITUTION:A bed 1, cross-table 2, and table 3 are made from thin steel plate. The two edges of the bed 1 are folded upward vertically into channel form having two parallel fold members 6, and a groove 7 as a track is formed at the inside. The two outer edges of the cross-table 2 are folded upward vertically into a U-shape having two parallel fold members 10, and a groove 11 as a track is formed at the inside. The two edges of the table 3 are folded upward vertically into a channel forum having two parallel fold pieces 8, and track grooves 9 are formed on the outsides. At the surface 12 of the cross-table 2, two parallel stripd of fold pieces 13 are punched off in the direction perpendicular to the fold pieces 10 being folded downward so as to form track grooves 14 on the outsides. At the time of assembly. groups of rolling elements 4, 5 are pinched between the grooves 7, 14 and the ones 9, 11, and the table 3 is made practicable to move straight in the X and Y directions.
Patent JP-S6356340-A (JP)
Title: Continuous casting method for molten steel
Inventor: MURAYAMA YUKIO
IPC: B22D11/10
Filed: 1986-08-25
Abstract: PURPOSE:To suppress the turbulence waves on a molten steel surface and to prevent quality degradation by the air oxidation of the molten steel by casting the molten steel into a continuous casting mold while disposing and floating a heat insulating plate onto the molten steel surface in an intermediate vessel for pouring the molten steel into the mold. CONSTITUTION:The plate-shaped heat insulating material 3 is disposed in the intermediate vessel 1 so as to cover nearly the entire surface of the molten steel in said vessel at the time of pouring the molten steel via the intermediate vessel 1 into the casting mold 2. The material quality of the heat insulating material 3 is required to have the specific gravity smaller than the specific gravity of the molten steel, to obviate the extreme decrease in the coating area upon melting, shrinkage, etc., by the molten steel and to prevent the change of the molten steel components. A calcia granular heat insulating material 4 is disposed in the remaining part. The molten steel is thereby cast into the mold 2 while the pouring temp. thereof is exactly maintained.