baber/WOPTO huggingface dataset:
Patent JP-H01235333-A (JP)
Title: Heat treatment of iii-v compound semiconductor
Inventor: YAMADA YOSHIHIDE
IPC: H01L21/265
Filed: 1988-03-16
Abstract: PURPOSE:To enhance an ion activation rate and to stabilize the performance of a semiconductor by cooling a III-V compound semiconductor in an atmosphere containing a group V element. CONSTITUTION:A GaAs semiconductor substrate into which ions have been implanted is heat-treated in a gas containing a group V element; after that, the substrate whose heat treatment has been completed in a high-temperature part is cooled in an atmosphere containing a group V element such as arsine (AsH3) or the like while it is shifted to a low-temperature part or after it has been shifted to this part. For example, a substrate 2' which is being heat-treated is housed in a reaction tube 1 corresponding to a part near the center of a heating furnace 5; when this substrate which has been heat-treated is to be cooled, it is shifted to a part near a gas inlet 3; it is cooled in an atmosphere of a gas, containing a group V element, introduced from the gas inlet 3. By this setup, an ion activation rate is increased; a sheet resistance (a film resistance) is reduced; a GaAs substrate whose performance is stable can be obtained.
Patent JP-H05345055-A (JP)
Title: Gut stringing method on packet head
Inventor: RUO KOAN NAN
IPC: A63B51/14
Filed: 1992-03-18
Abstract: PURPOSE: To improve a restitution force and a control function of a batted ball for the gut stringing method on the racket head, by forming lengthwise and breadthwise guts independently and uniformizing elasticity distribution on the net face of a head frame. CONSTITUTION: In order to stretch in a nearly central zone 50 of the net face of a head frame 20, a breadthwide gut single wire is stretched by a relatively weak force through a specified going and returning path so as to provide a specified elastic deformation quantity. A lengthwise gut single wire is stretched by a relatively strong force through a specified going and returning path so as to provide a specified elastic deformation quantity. Further, in order to stretch wires in a surrounding zone of the central zone, a surrounding gut is stretched lengthwisely and breadthwisely by an appropriate force so as to provide a specified elastic deformation quantity, and afterward, breadthwise, lengthwise and surrounding guts are tightly tied respectively and fixed to the head frame.
Patent JP-H07268437-A (JP)
Title: Method for removing nonmetallic inclusion in molten metal by ceramic filter plate and device therefor
Inventor: MIZOTA HISAKAZU
IPC: B22D43/00
Filed: 1994-03-31
Abstract: PURPOSE:To catch and remove nonmetallic inclusions suspended in molten steel in a ladle by efficiently allowing them to collide with a ceramic filter plate. CONSTITUTION:A ceramic filter plate 10 (having many pores 10a) provided around the lower part of a rotary shaft 9 by using a rotation driving device 6 installed on the surface of a cap of the main body 3 of a tundish is immersed into molten steel 4. Baffle plates 16 are arranged on the inner wall of the tundish 3 by four places, as for the horizontal rotary flow of the molten steel formed by the rotation of the ceramic filter plate 10, the formation of the upper and lower circulating flows is accelerated by the baffle plates 16, the renewal of the molten steel passing through the filter plate 10 is increased, and the removing rate of nonmetallic inclusions is improved.
Patent JP-S61222064-A (JP)
Title: Motor control circuit for information reproducing device
Inventor: MAEDA SATORU
IPC: G11B19/28
Filed: 1985-03-27
Abstract: PURPOSE:To change the driving properties of a motor by producing a control signal based on a clock signal supplied from outside and a reproduced information signal concerning the rotational speed of a motor and changing the frequency of the clock signal supplied to a signal producing circuit. CONSTITUTION:A disk 21 is driven into rotation by the motor 22 and a signal outputted from a pickup 23 is supplied to a signal processing circuit 25 through an amplifier circuit 24. The signal outputted from the circuit 24 is supplied to a motor control signal producing circuit 27 and the circuit 27 compares a frame synchronizing signal with a referee signal and supplies H-level and L-level pulse signals to a counter circuit 28 when the rotational speed of the disk 21 becomes slower and faster than the regular rotational speed, respectively. A clock signal CLK and a clock signal CLK are supplied to the circuit 28 depending on whether the circuit 27 is or is not continuously sensing the frame synchronizing signal, respectively. The count value is supplied to the motor 22 through a PWM modulating circuit 35, a time constant circuit 37 and an amplifier 38 for changing the driving properties.
Patent JP-H01236718-A (JP)
Title: Ceramic resonance element
Inventor: ONISHI MASAO
IPC: H03H9/17
Filed: 1988-03-16
Abstract: PURPOSE:To stabilize characteristics and to facilitate the work by forming electrodes on two faces facing each other in the lengthwise direction of a rectangular piezoelectric element and coating both electrodes except center parts and both end parts in the lengthwise direction with a coating material like a resist ink. CONSTITUTION:Electrodes 1a are formed on two faces facing each other in the lengthwise direction of a rectangular piezoelectric element 1, and the separation treatment is performed between both electrodes and both electrodes except about center parts 3 and both end parts in the lengthwise direction are coated with a coating material 2 like a resist ink. Thus, a solder is not adhered to an unnecessary part at the time of connection and fixing due to soldering or the like to stabilize characteristics, and severe control of the quantity of solder coating is unnecessary to facilitate the work.
Patent JP-H11261206-A (JP)
Title: Circuit board, substrate mounting method, and circuit assembly
Inventor: MISHIMA HIDETAKE
IPC: H05K3/34
Filed: 1998-03-13
Abstract: PROBLEM TO BE SOLVED: To reduce the defective connection of terminals at the time of mounting electronic parts related to an area bump array package, etc., on a circuit board. SOLUTION: An electrical insulating layer 27 is formed on a circuit board 22 by silk screen printing, etc., in such a way that the layer 27 surrounds a part of a conductor pattern 21 and does not surround the other part of the pattern 21. When cream solder 25 is printed, the thickness of the printed solder on the part of the conductor pattern 21 surrounded by the insulating layer 27 becomes thicker than that at the part of the pattern 21 not surrounded by the layer 27, because the screen 23 of the insulating layer 27 is pushed up. By forming the insulating layer 27 at the portions facing the corner sections of electronic parts which are apt to receive influences of the warp of the circuit board 22 or the electronic parts to be mounted on them, the occurrence of defective connection of terminals resulting from the warp of the board 22 or parts is reduced.
Patent JP-H08257714-A (JP)
Title: Continuous casting apparatus
Inventor: SUGIMARU SATOSHI
IPC: B22D11/20
Filed: 1995-03-22
Abstract: PURPOSE: To restrain the segregation and to shorten the time of heat treatment by dividing rolls in the width direction of a cast slab, forming the roll diameter to large in the width corresponding to a prescribed solid phase ratio, compensating the shrinkage of vol. at the time of solidifying and executing the rolling reduction. CONSTITUTION: The solidifying shrinkage rate in unsolidified part at the center part of the cast slab 1 at the inlet of a rolling reduction part, is obtd. and the necessary rolling reduction rate is obtd. from the material balance in the cross section so as not to develop the fluid of molten steel. The rolling reduction can be executed preferentially to the center part of the cast slab 1 by using the divided rolling reduction rolls 6 fixed to a segment frame 4 with a bearing 5. Since the rolling reduction is not directly executed to the bearing 5 part but the displacement having the same degree as the rolling reduction with the rolls 6 is executed, the rolling reduction can be executed only in the unsolidified width at the center part of the cast slab 1.  The roll diameter in the width corresponding to the part having <=0.7 solid phase ratio in the cast slab 1 is formed to large to compensate the shrinkage of vol. and then, the segregation is restrained, and the shortening of the heat treatment time and the improvement of the productivity can be obtd.
Patent JP-S53146775-A (JP)
Title: Production of sprinking hoses made of synthetic resin film
Inventor: KOUJIMOTO SUSUMU
IPC: B29D23/00
Filed: 1977-05-27
Abstract: PURPOSE: To produce sprinkling hoses, which give uniform sprinkling and are easily handled, continuously with efficiency, by fushing two sheets of synthetic resin film, which are put on top of each other, at three or more positions, and by forming small holes connecting between channels and sprinkling holes. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S58181460-A (JP)
Title: Clamping device of tie bar nut
Inventor: UENO TOYOAKI
IPC: B22D17/26
Filed: 1982-04-16
Abstract: PURPOSE:To perform opening, closing and tightening of half nuts surely with a single driving device by providing a cam plate which is movable with respect to the joint surface of the half nuts, and connecting a movable block to the cam plate. CONSTITUTION:A time bar 4 is fed through a stationary plate 1 so as to be unclamped from a movable plate in a die casting machine or the like. When a wedge member 24 is driven upward, a movable block 17 and a cam plate 12 move, and half nuts 11 which face each other are closed by the cam effect of a projection 11b and a groove 12a. When the member 24 is further driven, only the movable block 17 moves toward the end face of the bar 4 owing to the repellency of the connecting member 16 between the block 17 and the plate 12 and the force for pressing the bar 4 in the axial direction is exerted in press contact therewith. The screw of the bar 4 and the screw of the half nuts 11 are thus press stuck in the axial line direction of the bar 4 and the effect of screw tightening is obtained. The operation for loosening the nuts 11 is accomplished in the reverse procedure.
Patent JP-S58181822-A (JP)
Title: Manufacture of non-oriented silicon steel sheet having low iron loss
Inventor: NAKAMURA HIROTO
IPC: C21D8/12
Filed: 1982-04-16
Abstract: PURPOSE:To manufacture a high-grade non-oriented silicon steel sheet having a low iron loss, by warm-rolling the hot-rolled sheet of a silicon steel material having specified composition to final thickness in a predetermined temp. range, and then continuously finish annealing it. CONSTITUTION:A silicon steel material comprising C<=0.005%, 2.8-4.0% Si, 0.3-2.0% Al, 0.1-1.0% Mn, S<=0.007% and the balance substantially Fe is prepared. This silicon steel material is then finished to thickness of 2.0-3.0mm., for instance, by a conventional hot-rolling method. Then, this hot-rolled sheet as such or after being continuously annealed in a temp. range of 850-1,000 deg.C for 2-10min is formed to final thickness by one-pass rolling or two-pass or more rolling accompanied with intermediate annealing in a warm temp. of 200-300 deg.C. Thereafter, the hot-rolled sheet after being formed to the final thickness is continuously finish annealed in a temp. range of 900-1,050 deg.C for 30sec-5min. Thus, the non-oriented silicon steel sheet having a low iron loss is obtained.
Patent JP-H05264635-A (JP)
Title: Device for testing instantaneous disconnection of connector
IPC: G01R31/04
Filed: 1992-03-18
Abstract: PURPOSE:To detect the instantaneous disconnection of a connector securely in a device for detecting instantaneous disconnection of a connector. CONSTITUTION:A device for detecting instantaneous disconnection of a connector consists of a power source supply circuit 4 connected to a pair of connectors 2, which are connected to each other by a cable 1, through a split resister 3, and a reference voltage supply circuit 5 for supplying the voltage nearly equal to a partial voltage value by the split resistance 3, which is output in the case where the cable 1 and the connectors 2 are connected normally, and a comparator 6 for comparing the partial voltage value by the split resister 3 and the output voltage from the reference voltage supply circuit 5, and a flip-flop 8, which is operated by a change of the output from the comparator 6 as trigger to drive a display device 7 of a post stage.
Patent JP-H08263628-A (JP)
Title: Picture processor and picture processing system using same
Inventor: TAKENAGA HIROSHI
IPC: G06T1/00
Filed: 1995-03-22
Abstract: PURPOSE: To miniaturize a picture processing system and to facilitate construction by forming respective indispensable function modules including a picture input/output control part and a picture memory control part into one chip. CONSTITUTION: A video picture input/output part 2, the picture memory control part 3, a picture processing part 4 processing picture data, a feature extraction part 5 accumulating feature quantity from a picture processing result, a picture output part displaying picture data and a system control part 6 for designating the operation of the picture processing processor 1, all of which are functions indispensable for the picture processing system, are formed into one chip in a picture processing processor. The picture input/output part 2, the picture memory control part 3, the picture processing part 4, the feature extraction part 5 and the system control part 6 transfer control signals and data through a signal line 7. In such a case, the picture processing processor 1 can input a picture processing clock IPCLK18 in addition to a video clock.
Patent JP-H09261260-A (JP)
Title: Network system using synchronous data link control procedure and station equipment for the network system
Inventor: OZAWA KATSUNORI
IPC: H04L12/423
Filed: 1996-03-19
Abstract: PROBLEM TO BE SOLVED: To prevent the entire system from being disable of communication even on the occurrence of a fault in the communication system using a synchronous data link control(SDLC) procedure configured by connecting plural controllers apart from each other at remote locations in loops with communication lines. SOLUTION: Stations apart from each other at remote location are connected by communication lines in duplicate through two sets each of MODEMs 2a, 2b, ..., 2g, 2h. Then the transmission directions on the two lines are made opposite to each other, and a primary station 5a connects to secondary stations 6a, 6b, 6c sequentially through the loops 3, 4 to send a frame to them, then all the stations in the loops make N:M communication. On the occurrence of a fault on a loop, a 1st station at a downstream of the fault of each loop sends a control frame to all the stations in the loop to report occurrence of the fault and acts like a primary station to the downstream transmission direction to start sending the transmission frame, thereby continuing N:M communication except the faulty station.
Patent JP-H10259082-A (JP)
Title: Production of slow-acting capsule fertilizer
Inventor: MURAKAMI YOICHI
IPC: C05G3/00
Filed: 1997-03-17
Abstract: PROBLEM TO BE SOLVED: To obtain fertilizer enabling control of release amount and release period, capable of fertilizing sufficient amount thereof into soil at once, without causing decomposition of fertilizer coating material and remaining in the environment, free from germination and growth due to the coating material by forming a lactic acid based polymer in tube-like shape and packing fertilizer formed in slurry or liquid and melting and cutting the tube. SOLUTION: A lactic acid based polymer containing >=30 wt.% lactic acid component and having 3,000 to 400,000 weight-average molecular weight and 50-200 deg.C melting point is suitably used as the lactic acid-based polymer. The lactic acid contains preferably L-lactic acid or D-lactic acid in an amount of >=70 wt.% based on total lactic acid. Glycolic acid, etc., is used as a hydroxycarboxylic acid component copolymerizable with the lactic acid component. A fertilizer substance is introduced as melt-like or fluid-like slurry or liquid into the lactic acid-based polymer tube by providing proper temperature and further, water content thereto and the tube is cut at 3-30 mm intervals. The thickness of the resultant capsule is preferably 0.01-0.5 mm. Applicable sustained release period is one week to 2 year.
Patent JP-S58178507-A (JP)
Title: Granular spinel type iron oxide particle powder for magnetically isotropic magnetic recording medium and manufacture therefor
Inventor: MORI KEIZOU
IPC: G11B5/706
Filed: 1982-04-13
Abstract: PURPOSE:To obtain the magnetic recording medium devoid of fluctuations in reproduced output having excellent high output characteristics by a method wherein granular magnetic Fe2O4 particle is treated as a starting material and used as alpha-Fe2O3 particle, and then it is reduced by heat or by reoxidization if necessary. CONSTITUTION:The granular spinel type iron oxide particle powder, to be used for magnetically isotropic magnetic recording medium consisting of granular spinel type iron oxide particle having magnetic characteristics of magnetic coercive force of Hc250e and saturated magnetization of deltas70emu/g or above, and the granular magnetite particle which is synthesized from the aqueous solution containing Fe<2+> are used as starting materials. The above materials are formed into alpha-Fe2O3 particles by performing oxidization under heat of the temperature range of 600-850 deg.C in an oxidizing atmosphere. Then, they are reduced by heat of 250-450 deg.C in a reducing atmosphere, and besides, reoxidized in the temperature range of 150-400 deg.C in an oxidizing atmosphere if necessary. Through these procedures, the magnetic recording medium having no fluctuations in regenerated output and which is suitable for a floppy disk can be obtained.
Patent JP-H01236430-A (JP)
Title: Data reproduction controller for optical sheet and optical sheet used to said controller
Inventor: SATO YOSHIO
IPC: G11B7/0033
Filed: 1988-03-16
Abstract: PURPOSE:To simultaneously perform both the attitude control and the tracking control for accurate reproduction of data by operating the width directional position error of a recording medium and correcting this error based on the result of said operation. CONSTITUTION:A sensor part 20 is set on a recording medium 100 where the graphic of the same form are drawn at both end positions equidistant from a center line and detects widths of these graphic when a straight line crosses the graphic. The widths of both graphic detected by the part 20 are compared with each other. Based on the result of this comparison, the tilt of the medium 100 is operated to the part 20. Then the tilt of the medium 100 is corrected based on the result of said calculation. While the width directional dislocation of the medium 100 is also operated from the result of said comparison for correction of this dislocation. As a result, a signal processing is facilitated for reproduction of data and the medium 100 can be loaded accurately.
Patent JP-H03264624-A (JP)
Title: Method and device for treating molten metal
Inventor: OKUNO YOSHIO
IPC: C22B9/00
Filed: 1990-03-14
Abstract: PURPOSE:To produce a high-grade steel at a low cost by inserting the riser and downcomer for molten metal at the bottom of a closed upper vessel into a closed lower vessel to vertically join and communicate both vessels and providing a blowing hole to the riser. CONSTITUTION:The molten metal A in the lower vessel 2 is circulated between the upper vessel 1 and the lower vessel 2 by the pressure difference between both vessels 2 and 1 and a circulating inert gas blown in from the riser 3 side through the blowing hole 7 for the inert gas and/or a powder. The pressure difference between both vessels 1 and 2 is controlled to 1.2 atm and the pressure in the vessel 1 to <=0.1 atm. A plasma heater 5 and an induction heater 6 are provided to heat the molten metal A and to control its temp. By using this device, the impurity elements such as P, S, Sn and As are removed, the nonmetallic inclusion is reformed, and special elements such as Ca, N and Bi are efficiently added, which has not been realized by the conventional method.
Patent JP-S52146234-A (JP)
Title: Color photographic light sensitive material
Inventor: ADACHI KEIICHI
IPC: G03C7/26
Filed: 1976-05-31
Abstract: PURPOSE:To improve color fogging prevention efficiency without lowering photographic sensitivity, by adding a specified color fogging preventor.
Patent JP-H03263821-A (JP)
Title: Vapor growth apparatus
Inventor: HAYASHIDE YOSHIO
IPC: H01L21/205
Filed: 1990-03-14
Abstract: PURPOSE:To obtain an apparatus whose mass productivity and reliability can be enhanced by a method wherein several gas supply ports arranged in a row in the direction identical to a wafer arrangement direction are formed on a reaction tube which can house several semiconductor wafers on its inside and a gas supply tube connected to the gas supply ports is installed on the outside of the reaction tube. CONSTITUTION:In a vapor growth apparatus, the following are provided: a reaction tube 51 which is installed inside a heating container 1 and which can house several semiconductor wafers 4 arranged in a row at prescribed intervals on its inside and a boat 14 which is installed inside the reaction tube 51 so as to be inserted and extracted freely and which holds the semiconductor wafers. In the apparatus, several gas supply ports 53, 54 arranged in a row in the direction identical to a wafer arrangement direction are formed on the reaction tube 51; and a gas supply tube 55 connected to the gas supply ports 53, 54 is installed on the outside of the reaction tube 51. Thereby, when a raw-material gas is supplied into the reaction tube 51 from the gas supply ports 53, 54, a partial pressure inside the reaction tube 51 is made definite and a film-formation operation can be executed. Consequently, the growth speed of a reaction film can be set to be identical on the upstream side of the gas and the downstream side of the gas, and the number of wafers which can simultaneously be treated can be increased.
Patent JP-H01238040-A (JP)
Title: Manufacture of semiconductor device
Inventor: TAKAOKA MATSUO
IPC: H01L21/31
Filed: 1988-03-18
Abstract: PURPOSE:To avoid crystal defects in a substrate by a method wherein a nonoxidizing film is formed on the bottom part of an isolation trench and the movement of oxygen in an insulating film is blocked by the nonoxidizing film. CONSTITUTION:A silicon oxide film 12 is formed on a silicon substrate 11 by, for instance, a LOCOS method or the like. A silicon nitride film 13 is built up on the silicon substrate 11 and the silicon oxide film 12 so as to have a thickness about 700Angstrom  as a nonoxidizing film. Then a polycrystalline silicon film 14 is grown on the silicon nitride film 13 which is used for stress relief so as to attain a required thickness and a silicon nitride film 15 is grown thereon. Then patterning is carried out and the silicon nitride film 15 and polycrystalline silicon film 14 in an isolation region are removed by etching to form an isolation trench 16. At that time, the silicon nitride film 13 functions as an etching stopper. Then the side surfaces of the polycrystalline silicon films 14 in the isolation trench 16 are subjected to thermal oxidization and a silicon oxide film 17 is formed so as to almost fill the isolation trench 16.