baber/WOPTO huggingface dataset:
Patent JP-H0597571-A (JP)
Title: Crucible for pulling up silicon single crystal
Inventor: MATSUYAMA TOYOKAZU
IPC: C30B15/10
Filed: 1991-06-13
Abstract: PURPOSE:To obtain the subject crucible hardly causing change of shape (especially true circle) and crack even when used for a long time by providing an Si3N4 layer on the outer face of a quartz glass layer and specifying the ratio of thickness of Si3N4 layer to the quartz glass layer. CONSTITUTION:The objective crucible consists of an Si3N4 layer 1 and a quartz glass layer 2 and the Si3N4 layer 1 is provided on at least a part of the outer face of the quartz glass layer 2 and the ratio of thickness of the Si3N4 layer 1 to the quartz glass layer 2 is 1/9 to 4. The ratio is set to >=1/9 so as to make shape retention and thermal conductivity uniform and is set to <=4 so as to make the thickness of the layer 2 to >=2mm. Thereby improvements of crucible life and suppression of consumed electric power as well as improvement of uniformly heating property are made possible and yield is improved and crystal growing rate can be improved. Furthermore, an intermediate layer consisting of three components of Si, N and O may preferably be formed between the layer 1 and layer 2 and thereby stress between the layer 1 and layer 2 in heating and cooling can be absorbed and breakage of crucible can be prevented.
Patent JP-S5959829-A (JP)
Title: Manufacture of runner of water turbine
Inventor: EBISUTANI TAKASHI
IPC: C21D6/00
Filed: 1982-09-28
Abstract: PURPOSE:To prevent weld cracking, by casting a stainless steel contg. Cr, Ni and Mn and having its Ms point close to room temp. and its Mf point below room temp. into a rough body for the runner of a water turbine, retouching and welding the rough body at a temp. above the Ms point, and subjecting it to normalizing, subzero treatment and tempering. CONSTITUTION:A stainless steel contg., by wt., 11-14% Cr, 0.5-8% Ni, 2-9% Mn, <0.1% C and <1% Si and having its Ms point close to room temp. and its Mf point below room temp. is melted. The molten steel is cast into a rough body for the runner of a water turbine. The rough body is retouched and welded at a temp. above the Ms point of the steel, and it is subjected to normalizing, subzero treatment and tempering.
Patent JP-S5791847-A (JP)
Title: Horizontal and continuous cast billet drawing-out method of cast iron
Inventor: MEGURO MASARU
IPC: B22D11/04
Filed: 1980-11-28
Abstract: PURPOSE: To cast a cast billet which has a beautiful cast billet surface and scarcely has a flaw on the surface, by pushing in the cast billet to the side of a holding furnace by a small quantity before drawing it out, in a horizontal and continuous casting method for drawing out cast iron intermittently.  
     CONSTITUTION: A cast billet drawing-out pattern pushes in a cast billet to the side of a holding furnace 1 by a ≤6mm stroke 9 when the thickest solidified shell 6 has been formed immediately before the push-in cycle, and moves the shell 6 to a position 8 shown by a broken line. When it moves, the shell 6 of a solidifying start part is soaked in an unsolidified molten metal, is remelted, and the solidifying start position becomes thin and high in a temperature as shown by a solidified shell 10. Therefore, when the cast billet has been drawn out by the next pattern, the unsolidified molten metal and the shell 6 are melt-stuck entirely, and a flaw on the surface becomes small. Also, when the shell 6 is pushed in, friction generated between the shell and the casting mold 3 is reduced, break- down of the thin shell 6 is scarcely seen, and generation of a double surface due to the fact that a molten metal goes into an air-gap 4 and is solidified is not seen either. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H0458758-A (JP)
Title: Dc-dc converter
Inventor: UMENO TORU
IPC: H02M3/07
Filed: 1990-06-26
Abstract: PURPOSE:To utilize energy of DC power supply efficiently by inserting a series circuit of a first switch or diode and a first reactor between a DC power supply and an output capacitor and connecting a series circuit of a second switch and a second reactor in parallel with the DC power supply. CONSTITUTION:A first switch S1 and a capacitor C1 are connected in parallel with a DC power supply E and a second switch S2 is connected in parallel with the series circuit of the first switch S1 and the capacitor C1. Furthermore, an output capacitor Co is connected in parallel with the capacitor C1. Since the second switch S2 is turned ON/OFF by a clock signal and the first switch S1 is turned ON/OFF by an inverted clock signal, energy can be fed continuously from the DC power supply. Consequently, capacity of capacitor can be reduced resulting in reduction of size and cost.
Patent JP-H0825997-A (JP)
Title: Auxiliary machine drive device
Inventor: FUSHIKI MASAAKI
IPC: B60K25/02
Filed: 1994-07-20
Abstract: PURPOSE:To connect a plurality of auxiliary machines to each other and adjust the capacity thereof as a whole over a wide range by providing a transmission mechanism for an engine drive force, a clutch connected to each auxiliary machine, and a plurality of auxiliary machines having difference capacity, and controlling the capacity thereof as a whole via a gear shift or clutch selection. CONSTITUTION:A belt type continuously variable transmission 5 changes the drive force of an engine 3 entered via a gear train 11 and causes large-and small-diameter pulleys 13 and 15 to rotate. Belt power transmission mechanisms 7 and 9 are formed out of the pulleys 13 and 15, and other pulleys 17 and 19 connected to one another via belts 21 and 23. Compressors A and B have a capacity ratio of 1 to 3, and are connected to the pulleys 17 and 19 via an electromagnetic clutch. The belt power transmission mechanism 7 has an acceleration function and the mechanism 9 a deceleration function, using a difference in the diameters of the pulleys 13 and 15, and 17 and 19. According to this construction, four different types of characteristics can be provided through the selection of the compressors A and B and a two-stage selection device, while six different types of characteristics can be provided via a difference in the delivery capacity of a single compressor at equal and double speed modes.
Patent JP-S5690225-A (JP)
Title: Photosensor circuit
Inventor: KANOU KENJI
IPC: G01J1/42
Filed: 1979-12-24
Abstract: PURPOSE:To improve reliability by comparing a signal from a light-receiving element for compensation with a reference voltage, resetting the said signal so that its deviation value may be minimized and stabilizing a signal from a light-receiving element for signal detection with the help of the reset value. CONSTITUTION:Light-receiving diodes for signal detection and for compensation 2a, 2b are arranged opposed to a luminous diode 1. A signal from the light-receiving diode for compensation 2b, after being amplified by a variable amplifier 6, is compared to a reference voltage of a constant voltage source 13 by means of a comparator 14. An output voltage of this comparator 14 is also applied to a variable amplifier 5 connected to the light-receiving diode for signal detection 2a at the same time that a gain reset by the variable amplifier 6 is controlled. As it is controlled in such manner that the both amplifiers 5, 6 may have the same gain and also the output voltage of the amplifier 6 may be equal to a reference voltage, it is possible to obtain a stabilized signal at the output terminal of the amplifier 5.
Patent JP-H0519451-A (JP)
Title: Photomask
Inventor: YONEDA SEIJI
IPC: G03F1/48
Filed: 1991-07-09
Abstract: PURPOSE:To prevent damage, to protect a mask pattern over a long period of time and to facilitate production in the case of a large diameter by enhancing strength as a whole while enabling satisfactory transfer. CONSTITUTION:A second transparent plate 13 is superposed on the surface of a first transparent plate 11 with a drawn mask pattern 12 and the thickness of the first and second transparent plates 11, 13 is so increased as to prevent the transfer of dust sticking to the peripheries of the plates 11, 13.
Patent JP-H1179-A (JP)
Title: Mouse having modified gas6 gene
Inventor: NAKANO TORU
IPC: C12N5/10
Filed: 1997-06-09
Abstract: PROBLEM TO BE SOLVED: To obtain a mouse having a Gas6 gene modified so as not to express a Gas6 protein, and used as a laboratory animal for study such as elucidation of pathophysiology and cause of circulatory system, respiratory system, central nervous system and immune system diseases a related to Gas6, and development of a method for treatment thereof. SOLUTION: This mouse having Gas6 gene including a neomycin resistance gene inserted in the Gas6 gene region and modified so as not to express a Gas6 protein is obtained by substituting a region including the first and the second exons of the Gas6 gene with the neomycin resistance gene.
Patent JP-H1066430-A (JP)
Title: Combine harvester
Inventor: HIDAKA SHIGEMI
IPC: F01P1/02
Filed: 1997-06-09
Abstract: PROBLEM TO BE SOLVED: To provide a combine harvester capable of simplifying a structure, preventing a noise of an engine from being diffused and improving an cooling efficiency, a durability and maintenance properties by installing a fan for performing ventilation in the interior of a housing of the engine. SOLUTION: This combine harvester has an engine 21 for driving a mowing part and a thrashing part installed in an engine housing 24, a fan 26 for ventilating the interior of the engine housing 24 and preferably an outside air- introducing housing 27 communicating to the engine housing 24 to introduce a dust-removed air of the outside air-introducing housing 27 to the engine housing. Further, a cooling of a radiator 22 and the ventilation of the engine housing are performed by connecting hook-shaped draft air ducts 30 and 33 to the engine housing 24, installing the fan in the draft air ducts 30 and 33 and attaching a radiator 22 for water-cooling on the outside of the engine housing 24, and the machine exterior side of the engine housing 24 is preferably closed by the outside air introducing housing 27.
Patent JP-H0522564-A (JP)
Title: Facsimile equipment
Inventor: YOSHIKAWA HIROYASU
IPC: H04N1/32
Filed: 1991-07-09
Abstract: PURPOSE:To eliminate a failure which one sheet of original on a transmission side is printed over two sheets of paper on a reception side if the original to be transmitted is set in an inclined state on a transmission original platen on the transmission side when cut paper is used as recording paper on a reception side. CONSTITUTION:A RAM 2 storing transmission picture data is provided and a control part 1 is constituted by processing transmission picture data within the RAM 2 so that the number of reading line for one sheet of original may coincide with the number of stipulated line corresponding to the size of recording paper of an opposite machine when the number of reading lines is more than that of the prescribed lines and when the number of reading lines is fewer than the values which a reference value is added to this number of prescribed lines and by transmitting this transmission picture data.
Patent JP-2000004561-A (JP)
Title: Cooling device for totally closed external fan motor
Inventor: YAHARA HARUKI
IPC: H02K9/06
Filed: 1998-06-16
Abstract: PROBLEM TO BE SOLVED: To improve cooling efficiency, by fitting an internal fan and an external fan in a ventilation opening formed between a first frame of cylindrical shape and a second frames of triangular shape formed at four outside corners and a cooling fan disposed on closed non-load side, and forming a branch plate between the ventilation openings. SOLUTION: A frame 5 consists of the first frame of cylindrical shape and the second frames 4 formed at four outside corners. A ventilation opening is formed between the first frame 3 and the second frame 4, and inner fins are formed at the first frame 3 in the ventilation opening. A fan cover 11 is mounted on an outer frame 2 connected to the second frame 4, and a cooling fan 12 is mounted on a non-load side bracket 7 or the fan cover 11. The cooling wind sucked from a suction port 13 on the non-load side by the rotation of the cooling fan 12 is diverted into the wind which flows in the axial direction toward the load side of a motor, and then to the ventilation part, and the wind which flows to the external fin 10.
Patent JP-H0516590-A (JP)
Title: Electronic blackboard device
Inventor: YAMAMOTO TAKEMASA
IPC: H04N1/00
Filed: 1991-07-09
Abstract: PURPOSE:To provide an electronic blackboard device which is foldable and yet is not much affected by a step difference at the divided part for folding. CONSTITUTION:A holding plate for a drawing sheet 3 is divided into two parts 4a, 4b, and the holding plates 4a, 4b are connected by hinge members 5, 6 to make the holding plates foldable, and an auxiliary sheet 4c is adhered on the holding plates 4a, 4b. By this method, the divided part of the holding plates 4a, 4b is covered by the auxiliary sheet 4c, and even if there is a step difference at the divided part, there is no inconvenience when characters or picture are drawn on the drawing sheet 3.
Patent JP-S6411331-A (JP)
Title: Method of processing semiconductor thin film
Inventor: HAYASHI HISAO
IPC: H01L27/12
Filed: 1987-07-06
Abstract: PURPOSE:To flatten the surface of a flattening material without giving damage to a desired film thickness, by heaping the flattening material on a semiconductor thin film with its surface recessed/projected on an insulating layer formed on a substrate and next by performing grinding and mirror-polishing processes. CONSTITUTION:After an SiO2 film 2 is formed on an Si substrate 1, the film 2 is etched in a prescribed pattern. Next, a single crystal Si film 3 is formed on the SiO2 film 2. The surface of this single crystal Si film 3 is recessed/ projected as a result of its epitaxial growth via the SiO2 film. A flattening material, for example, polycrystalline Si 4 is heaped on this single crystal Si film 3 with its surface recessed/projected. The polycrystalline Si 4 is ground to flatten the surface by a grinding process. This grinding process is performed so deep that no damage is given to the single crystal Si film 3 of a desired thickness.
Patent JP-H09323566-A (JP)
Title: Safety travelling system
Inventor: YOSHIDA MASATO
IPC: B60W10/18
Filed: 1996-06-07
Abstract: PROBLEM TO BE SOLVED: To correct a target car-to-car distance in a constant car-to-car travelling mode and target car speed in a constant car speed travelling mode by reading a habit and sensitivity of a driver, a change of weather and a change of a driving state accompanied with a kind, etc., of a front vehicle. SOLUTION: A target car-to-car distance is input from an operation switch part 7 and stored in a set parameter memory part 15 in a constant car-to-car travelling mode. In the meantime, a state detection part 21 corrects the target carto-car distance in the set parameter memory part 15 in accordance with a specified rule by reading a change of a driving state from output of a throttle opening sensor 9 and a stop lamp switch 14 and using the set target car-to-car distance and a measured car-to-car distance.
Patent JP-H0789735-A (JP)
Title: Structure to bring a part of a couple of blades or a part of blade rack into constant contact
Inventor: KON YOSHIAKI
IPC: C03B7/11
Filed: 1993-06-01
Abstract: PURPOSE:To cut a glass material with excellent quality and durability at the time of cutting the material in the production process of glass product to form a gob. CONSTITUTION:Blades 1 and 2 of a material (ceramic, etc.) low in impact resistance but high in resistance to wear and heat are used, and cooling water need not be sprinkled. The tips of the blades 1 and 2 are in contact with each other at all times. The frequency of exchanging blades is drastically reduced by this method. Consequently, the cost is reduced since water is not needed, the peripheral equipment is not contaminated or damaged, defective molding due to the nonuniformity in temp. resulting from the deposition of water on a gob is prevented, the surface pressure of the blade is easily controlled, and a stabilized gob is formed.
Patent JP-S5958355-A (JP)
Title: Biochemical analysis device
Inventor: KOBAYASHI TERUAKI
IPC: G01N27/327
Filed: 1982-09-29
Abstract: PURPOSE:To improve remarkably the life of an enzyme electrode by using an electrode provided with the power for capturing heavy metal as a reference electrode and/or an eath electrode. CONSTITUTION:An enzyme electrode 1 which uses as enzyme film 12 immobilized with enzyme, more particularly SH enzyme as a sensitive film and is disposed with a layer having the power for capturing heavy metal in contact with the surface of the film 12 on the side opposite to the side which is in contact with the liquid to be examined is combined with a reference electrode 2 and/or earth electrode 3, thereby constituting a biochemical analysis device. An electrode provided with the power for capturing heavy metal is used as the electrode 2 and/or the electrode 3. The deterioration in the performance of the electrode 1 by the effect of the univalent heavy metal which is hardly capturable by a chelating agent such as ethylenediaminetetraacetic acid is prevented completely and therefore the life of the electrode 1 is remarkably improved.
Patent JP-S5869742-A (JP)
Title: Treatment of glass surface
Inventor: WATANABE KOUJI
IPC: C03C15/00
Filed: 1981-10-21
Abstract: PURPOSE:Glass plates are stood vertically and plates for stemming the etching solution from flowing down are set on both sides and/or the upper periphery of the glass plates in close contact in the normal direction to the both surfaces of the glass plates, then they are dipped in the etching solution to form evenly uniform porous layers all over the glass plate surfaces. CONSTITUTION:A plurality of glass plates 3 which have a certain interval 1 one another by allowing rubber spacers to lie between them at their corners are made to stand in the holding frame 5 in which the frame parts are assembled in a rectangular parallelopiped so that the upper part is opened. A pair of plates for stemming 6 are brought into close contact with the both ends of the glass plates 3 that extend on both sides of the frame 5 and are extended more outer than the outermost glass plates 3A by a certain width W and also to both top and bottom ends by a certain distance L. Further, spacer projections 10 are formed at a constant interval in the almost vertically middle point of the stemming plates so that the projections come into the spaces between the glass plates to keep the interval between glass plates constant. Then, they are dipped in the etching solution 2 in the tank 1 to effect surface treatment to form extremely fine porous layers.
Patent JP-S6228629-A (JP)
Title: Temperature sensor
Inventor: TANAKA YASUHISA
IPC: G01K7/22
Filed: 1985-07-30
Abstract: PURPOSE:To fetch plural electric signals from a single temperature sensor, by isolatedly putting at least two temperature-to-electricity transducing elements which transduce ambient temperature into electric signals in a highly heat- conductive case. CONSTITUTION:The temperature sensor of this invention has such a structure that a disc-type thermistor 201 is provided at the front end section of the inner hole of a brass-made case 26 and bead-type thermistors 202 and 203 put in a sensor holder 25 are provided on the inner side of the thermistor 201 with an insulating material 23, washer 241, and belleville spring 242 in between of the thermistor 201 and sensor holder 25. The sensor holder 25 is energized leftward by a spring 243 supported by a spring pushing nut 244. The inner hole of the case 26 is sealed by a resin mold 27. This temperature sensor 2 is installed to the output on a cooling water path in such a way that the front end section of the case 26 can be put in the cooling water. When this temperature sensor is used, current value signals and voltage value signals are respectively fetched by means of the thermistor 201 and thermistors 202 and 203.
Patent JP-H1113404-A (JP)
Title: Blade and sealing mechanism for moving blade
Inventor: IWASAKI YOICHI
IPC: F01D5/22
Filed: 1997-06-25
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency of a rotary machine by always maintaining a chip clearance at zero or minimum for the tip part of a fin and the inner peripheral surface of a sealing member by adjusting a spring elastic force and reducing the leakage of gas from a tip clearance part. SOLUTION: A fin 3 is formed in a reverse T shape, a base part 3b thereof is housed in a hollow part 2a, and a tip part 3a is protruded from a hole 2a in the outer periphery of a shroud 2 in a radial direction and is brought into contact with the inner surface of a honeycomb seal 6 as a sealing member. A compression spring 4 is erected between the upper and lower surfaces of the base part 3b of the fin 3 and between the upper and lower wall surfaces of the hollow part 2a. The tip 3a of the fin 3 is brought into contact with the inner peripheral surface of the honeycomb seal 6 with a small force by the elastic force of the spring 4.  By adjusting the spring constant of the spring 4 and an attaching load for the pressing force of the fin 3, the tip 3a of the fin 3 is brought into contact with the inner peripheral surface of the honeycomb seal 6, i.e., a honeycomb end edge 6a, always by a small force.
Patent JP-2000358195-A (JP)
Title: Video signal processor
Inventor: SERIZAWA MASAYUKI
IPC: H04N5/353
Filed: 1999-06-15
Abstract: PROBLEM TO BE SOLVED: To improve the influence of flaws in an image pickup element and to obtain satisfactory video signals over a wide dynamic range. SOLUTION: An image pickup element 1010 of this video signal processor compares the level of a nonstandard exposure video signal 1070 that is photographed in an exposure time shorter than the standard one with the level of a flaw threshold signal 1083 via a signal level flaw detection means 1080. If the signal 1070 exceeds the flaw threshold signal level, the pixel of interest is decided as a flaw. A flaw correction means 1090 corrects the pixel decided as a flaw by means of the mean value of peripheral pixels. Then a standard exposure video signal 1091 and a nonstandard exposure video signal 1092 which undergone the correction of flaws are composited together by a video signal compositing means 1100. Thus, the flaw of the element 1010 is improved for every pixel and the satisfactory video signals are obtained over a wide dynamic range.
Patent JP-H04366245-A (JP)
Title: Floor structure of house
Inventor: OKAWA KENSAKU
IPC: E04F15/00
Filed: 1991-06-12
Abstract: PURPOSE:To form floors for an entrance hall and a porch of an upstairs doorway in excellent waterproofing and heat insulation as well as in deluxe touch. CONSTITUTION:A first floor beam 5 placed along the front edge of a raised floor 3 and a second floor beam 6 are bridged with a first sleeper 7, and the second floor beam 6 and a third floor beam 9 placed along the outer edge of a porch floor 2 are bridged with a second sleeper 10, whose upper face is positioned lower than that of the first sleeper 7. Then the porch floor 2 and an entrance hall floor 4 are formed by placing a floor panels 11, a heat insulating layer 12, a mortar layer 13 and a floor finishing layer 14, with waterproof sheets 15 included, one after another over the first and the second sleepers 7 and 10. The mortar layer 13A in the porch floor 2 is made thicker than the mortar layer 13B in the entrance hall floor 4.