baber/WOPTO huggingface dataset:
Patent JP-H0226289-A (JP)
Title: Control method for induction motor
Inventor: MATSUI TAKAYUKI
IPC: H02P23/08
Filed: 1988-07-15
Abstract: PURPOSE:To compensate for a flux change due to the magnetic saturation of a motor core to enable performing a high accuracy flux-weakening control by operating the variation of a voltage command from a reference value on the basis of the deviation of a sensed value of torque current from a torque current command signal and by correcting an exciting current command signal according to said voltage variation. CONSTITUTION:A current controller 16 outputs a voltage compensatory signal  Vq* according to the deviation of a torque current Iq from a torque current command Iq*. An arithmetic circuit 18 outputs a current compensatory signal  Id* compensating for a flux change by a core magnetic saturation on said voltage compensatory signal  Vq*. A current controller 15 outputs a voltage compensatory signal  Vd* according to the deviation of an exciting current Id from an exciting current command Id** adding an exciting current command Id* and a current compensatory signal  Id*. Further, said voltage commands Vd*, Vq* operated by a voltage command arithmetic circuit 14 are corrected by said voltage compensatory signals  Vd*,  Vq* and then outputted.
Patent JP-2000004969-A (JP)
Title: Reclining device
Inventor: ASANO MAKOTO
IPC: A47C1/025
Filed: 1998-06-22
Abstract: PROBLEM TO BE SOLVED: To prevent lowering of the interlocking strength between a slide pole and a ratchet under a load action in a reclining device in which a slide pole assembled with a first connecting arm is slid to engage with a ratchet equipped on a second connecting arm to lock both arms. SOLUTION: An arc shape bore part 13c on the back part of a slide pole 13 is borne by an arc shape bearing part 14b of a bearing plate 14 to keep an engaging condition between the slide pole 13 and a ratchet 12e to regulate the rotation of the slide pole 13 under load action to prevent lowering of engaging strength caused by the rotation of the slide pole 13 to increase the engaging strength.
Patent JP-H0463526-A (JP)
Title: Culture medium-circulating device for hydroponic culture
Inventor: KANO TOSHIAKI
IPC: A01G31/00
Filed: 1990-07-02
Abstract: PURPOSE:To stabilize water quality of a culture medium and smoothly and efficiently carry out hydroponic culture by cleaning and activating fed raw water by an active carbon and magnet. CONSTITUTION:A number of small holes F and G are provided in a filter case 2 made of nonmetal in which an active carbon C is packed and raw water fed from the inlet D is passed through an active carbon layer and pulled out from the outlet E and fed into a culture medium storage tank. A number of permanent magnets 9 are installed near these small holes F and G to magnetize the raw water.
Patent JP-S6418292-A (JP)
Title: Semiconductor laser device
Inventor: JINNO MARUO
IPC: H01L39/16
Filed: 1987-07-14
Abstract: PURPOSE:To facilitate changing the oscillation frequency of a semiconductor laser chip quickly by a method wherein a magnetic field applied to the semiconductor laser chip is controlled by currents applied to superconductors and the superconductors do not have an LR time constant which an electromagnet has. CONSTITUTION:As magnetic lines of force do not enter a space between facing superconductors 3 and 4 by the Meissner effect of the superconductors 3 and 4, the magnetic field is not applied to a semiconductor laser chip 7. If currents of 10000A/cm<2> are applied to the respective superconductors 3 and 4, superconductive states of the superconductors 3 and 4 are relieved and converted into normal conductive states and the magnetic lines of force are applied to the semiconductor laser chip 7 through the superconductors 3 and 4. With this constitution, as the magnetic field applied to the semiconductor laser chip 7 is controlled by the currents applied to the superconductors 3 and 4 and the superconductors 3 and 4 do not have an LR time constant, the oscillation frequency of the semiconductor laser chip can be changed quickly.
Patent JP-H0340011-A (JP)
Title: Water governor
Inventor: OKADA SADAO
IPC: G05D7/01
Filed: 1989-07-06
Abstract: PURPOSE:To prevent an ice film formed in a contraction path by opening the size of the contraction path of an annular valve to the one incapable of forming a water film by surface tension. CONSTITUTION:A cylindrical valve 5 is formed cylindrically so as to be displaced in the up-and-down direction in a governor housing 2, and is equipped with a flange 13 in the periphery of an intermediate part, and the flange 13 is positioned at the upstream side of a valve seat 3, and an aperture area between the valve seat 3 is changed by displacing the cylindrical valve 5 in the up-and-down direction. The annular valve 6 is provided at the downstream side of the cylindrical valve 5, and is equipped with the contraction path 15 for the contraction of water passing the center path of the cylindrical valve 5 in the center part of the valve 6, and the contraction path 15 is opened so as to pass the water in the up-and-down direction. And the size and shape of the contraction path 15 are decided so as not to form the water film by the surface tension when the water is drained from the governor housing 2. Thereby, the contraction path 15 can be prevented from clogging with the ice film even when drain is performed and environmental temperature is decreased.
Patent JP-H0621370-A (JP)
Title: Semiconductor device
Inventor: SASE YASUKI
IPC: H01L21/8234
Filed: 1992-07-02
Abstract: PURPOSE:To obtain a semiconductor device which can relax an electro-static stress, by a construction wherein a region of a first conductivity type is scattered in the shape of an island on the surface of a substrate whereon an element is formed. CONSTITUTION:A P well region 102 is formed of P wells connecting with each other, while an N well region 101 is formed of N wells connecting with each other through the intermediary of an N-type substrate 100, and when viewed from the surface of a chip, these wells form a structure wherein the N well region 101 is scattered in the shape of an island in the P well region 102. An N well region 203 is formed of N wells for a vacant region 207 for cutting the chip, which is provided for preventing the leak of a current in the peripheral part of the chip, and N and P channel MOS transistors 204 and 205 are formed in the wells respectively and covered with a passivation film 206. Accordingly, the resistance to electrostatic noise corresponding to an area can be obtained when the electrostatic noise is impressed on the P well, since an allowance for an electric charge increases in an area ratino.
Patent JP-H0621451-A (JP)
Title: Manufacture of semiconductor device
Inventor: SASE YASUKI
IPC: H01L29/78
Filed: 1992-07-02
Abstract: PURPOSE:To obtain through simple processes a trench transistor which satisfies the requirements relative to the increase of its integration degree and the reduction of its consuming power, by forming a buried channel while gaining the length of the channel. CONSTITUTION:In a semiconductor device, first, a nitride film 102 is deposited on a polysilicon film 101 laid on a P-type silicon substrate 100, and the nitride film 102 and the polysilicon film 101 in a channel part are removed. Then, an oxide film 103 is formed in the window part of the nitride film 102. Subsequently, after removing the nitride film 102 and the oxide film 103, a gate oxide film 104 is formed by a thermal oxidation. Further, using an ion injection method, doping into the channel part is performed. Then, a polysilicon film 106 is deposited on the gate oxide film 104, and by performing an etchback, the polysilicon film 106 is left only in the recessed part of the channel part. Then, source.drain offset diffusion layers 107, 107 and source.drain diffusion layers 108, 108 are formed respectively as source.drain regions. Finally, after forming interlayer insulating films 109, aluminum wirings 110 are formed on the source drain regions, etc.
Patent JP-2001007063-A (JP)
Title: Polishing method of silicon wafer, and silicon wafer polished thereby
Inventor: KATO TAKEO
IPC: B82B1/00
Filed: 1999-06-22
Abstract: PROBLEM TO BE SOLVED: To reduce microscratches on the surface of a wafer, suppress rough surface of the wafer, and reduce metal contamination on the wafer. SOLUTION: In this method, a silicon wafer is polished with a polishing solution for the purpose of adjusting the quality of a surface of the wafer cut out and sliced from a silicon single-crystalline ingot. In this case, the wafer is made by a CZ method, where no aggregate of point defects of an air void type and no aggregation of point defects of an inter-lattice silicon type are present, and the polishing solution is an alkaline colloidal silica polishing solution, having a pH which exceeds 12.0 and not larger than 14.0 or an alkaline aqueous solution which contains a thickening agent or does not contain abrasive grains and having a pH value of not smaller than 8.0 and not larger than 14.0.
Patent JP-S6418580-A (JP)
Title: Manufacture of exhaust manifold for internal combustion engine
Inventor: HIDA KOICHI
IPC: B23K9/23
Filed: 1987-07-14
Abstract: PURPOSE:To manufacture the titled lightweight manifold whose inside is smoothed with the high quality by welding exhaust pipes made of ferritic stainless steel with the specific composition to a box body by using a wire of the same system steel kind under specific conditions. CONSTITUTION:With the exhaust manifold for an internal combustion engine provided with the plural exhaust pipes 21-24 and the box body 4, ferritic stainless steel pipe bodies containing, by weight, about 0.31% Ti with contents of C and N <= about 0.010% and <=0.015% respectively are used for the exhaust pipes 21-24 and a plate body of the same stainless steel is used for the box body 4. Then, said wire of the same system steel kind as said stainless steel which is subjected to coating treatment for reducing the feed resistance on the surface is used to perform the MIG welding of the exhaust pipes 21-24 to the periphery of a hole part of the box body 4 with an inverter type MIG welding power source with the high performance under conditions of the welding speed 100-160cm/min and the heat gain 2000-2500J/cm. By this method, the exhaust manifold to stand fully the influences of the thermal stress, vibration and residual stress is obtained.
Patent JP-H0341828-A (JP)
Title: D/a conversion circuit
Inventor: SHOJI NORIO
IPC: H03M1/74
Filed: 1989-07-10
Abstract: PURPOSE:To decrease a current error and to attain monopolar analog output which uses an optional reference voltage as a reference and a bipolar analog output while taking an optional reference voltage as its center by providing plural constant current sources and plural current switches or the like. CONSTITUTION:Constant current sources 8-11 output a nearly equal current I0, respectively and 1st-4th current switches SW1-SW4 consists of TRs Q1-Q8. Digital signals as MSB, 1MSB, 2SB, and 12SB... or the like are fed to the bases of TRs Q1-Q8. Moreover, an (r-2r) ladder circuit 12 has plural current input terminals P1-P4 corresponding to the constant current sources 8-11 and a termination resistor R8. Since an equal current flows to the switches SW1-SW4, a current error is less and a monopolar analog output taking an optional reference voltage as a reference is obtained. When the bias current of other current source is fed to a bias resistor, a bipolar analog output taking an optional reference voltage as its center is obtained and the adjustment of the conversion gain is facilitated.
Patent JP-S6151840-A (JP)
Title: Wire bonding device
Inventor: YAMAUCHI YUKIO
IPC: H01L21/60
Filed: 1984-08-21
Abstract: PURPOSE:To enable wire bonding in sufficient strength by rotating a semiconductor device secured vertically with a chip to a stem so that the chip is disposed horizontally and wire bonding from above. CONSTITUTION:A semiconductor device 15a before wire bonding is placed on a tray 9, and one is fed to the position directly under a chuck 23. A semiconductor device 15a is placed on a retainer 26a of a holding rotor 26 by the chuck 23. The device 15a is attracted in vacuum from a vacuum evacuation hole 31, and held. The rotor 26 is rotated at 90 deg., and a chip 18 and external electrodes 16a are disposed at horizontal position. Fine metal wirings are bonded to a capillary chip 8 via the wire bonding body 6.
Patent JP-H0227142-A (JP)
Title: Method for controlling air-fuel ratio of internal combustion engine
Inventor: KATO AKIRA
IPC: F02D41/14
Filed: 1988-07-13
Abstract: PURPOSE:To minimize the shifting of feeding air-fuel ratio from a target value over the whole range of an engine load by correcting a defined multiplying term and an adding term in accordance with an engine load based on the feeding fuel quantities before and after learning. CONSTITUTION:In an ECU 5, a fundamental fuel feeding quantity is determined by using a defined multiplying term and a defined adding term with respect to the load of an engine 1. Also, the fundamental fuel feeding quantity is corrected using a correction factor corresponding to the deviation between the output signal of the O2 sensor 15 of the engine 1 and a defined target air- fuel ratio. In this case, the learned values of a defined multiplying term and an adding term are corrected in accordance with an engine load based on the feeding fuel quantities before and after learning. Thereby, the deviation of feeding air-fuel from a target air fuel ratio can be miniaturized over the whole load zone of the engine 1 from a low load to a high load improving the converging property thereof.
Patent JP-S6333046-A (JP)
Title: Ic card type telephone set
Inventor: MORIYA YASUHARU
IPC: H04M1/66
Filed: 1986-07-28
Abstract: PURPOSE:To limit the using of a third party, to save a telephone charge and to effectively use a telephone set by providing an IC card unit, connecting it to a telephone line with an IC card and thereafter, attaining the dialing-in. CONSTITUTION:When a caller inserts an IC card into an IC card unit 2, IC card inserting information is outputted to a control circuit 3, the control circuit 3 is operated by the input of the IC card inserting information, an IC card type telephone set 6 is connected and controlled to a calling circuit 5 and the condition in which it can be used as the telephone set is obtained. Next, when the telephone set 6 is hooked off, the calling instruction is sent to a replacing device 7, a dial tone is sent from the replacing device 7 to the caller and dialing can be executed. On the other hand, while the IC card is not inserted into the IC card unit 2, off-hooking is executed, and then, the IC card unit 2 does not send the IC card inserting information to the control circuit 3. For this reason, since the telephone set 6 and the calling circuit 5 are not connected, the origination cannot be executed.
Patent JP-S6066283-A (JP)
Inventor: TSUMURA TOSHIHIRO
IPC: G09B19/16
Filed: 1983-09-21
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-H0926909-A (JP)
Title: Memory management method
Inventor: TAKAYAMA YOSHIHISA
IPC: G06F12/02
Filed: 1995-07-12
Abstract: PROBLEM TO BE SOLVED: To provide a three-dimensional memory management method for forming a logically closed ring relating to an address for specifying a storage area possessed by a memory. SOLUTION: By making the addresses 6 of the memory 8 correspond to the addresses of a conventional memory through the angle variable of a cylindrical coordinate system and matching the bit numbers 7 of the memory 8 with the bit numbers of the conventional memory, the memory 8 is arranged on the side face of a cylinder logically and the closed ring relating to the addresses 6 is formed. Thus, algorithm in the case of performing a memory operation including a boundary relating to the addresses is simplified, the infinite use of the addresses is made possible and the design and the construction of a software are facilitated.
Patent JP-H0226051-A (JP)
Title: Manufacture of semiconductor device
Inventor: HAGITA MASAFUMI
IPC: H01L21/768
Filed: 1988-07-14
Abstract: PURPOSE:To eliminate diffusion of a wiring metal and prevent junction leak by performing ion implantation of silicon or oxygen after performing heat treating of a high melting-point metal layer on the surface of a contact opening part. CONSTITUTION:After forming an insulation film 102 on a silicon substrate 103 and then a contact opening part, a high melting-point metal layer 101 is formed on an insulation film and the surface of the contact opening part. Titanium is sputtered here as a high melting-point metal. Then, performing heat treating using a high-speed heat treating furnace, etc., a titanium nitride 105 is formed on the contact opening part and a titanium silicide 106 is formed at the interface with the substrate. Furthermore, silicon or an oxygen 104 is ion-implanted to the surface of the titanium nitride 105. After that, a conductive wiring 107 is formed on the titanium nitride 105. It prevents wiring metal from being diffused even if heat is applied to at a post-process, etc., and leak current at junction from increasing.
Patent JP-H0810719-A (JP)
Title: Device for washing with brush
Inventor: SUGIMOTO KENJI
IPC: B08B1/00
Filed: 1994-07-04
Abstract: PURPOSE:To wash substrate surfaces with brushes by automatically selecting the desired brushes from plural pieces of the brushes. CONSTITUTION:Plural pieces of brush supporting arms 5 respectively mounted with the brushes 1 are juxtaposed and are held to stand by in a stand-by position. The respective brush supporting arms 5 are horizontally moved along guide rails 12 and the desired brush supporting arm 5 is engaged with a driving arm 20. The brush supporting arm 5 engaged with the oscillating arm 20 is risen. The driving arm 20 is oscillated around an oscillation fulcrum P by an electric motor 25 and the brush supporting arm 5 mounted with the desired brush 1 is oscillated around the oscillation fulcrum P. The desired brush 1 among plural pieces of the brushes 1 is thus moved between the stand-by position and the center CP of rotation of the substrate W.
Patent JP-2001006211-A (JP)
Title: Optical recording medium and method for recording and/ or reproducing by using that optical recording medium
Inventor: HAYASHI YOSHITAKA
IPC: G11B7/24035
Filed: 1999-06-22
Abstract: PROBLEM TO BE SOLVED: To achieve stable recording and higher density recording by forming a multilayered film having a layer which increases the reflectance when the temperature rises on a substrate having a rough surface. SOLUTION: The optical recording medium consists of a substrate 1, lower protective layer 2, mask layer, intermediate protective layer 4, recording layer 5, upper protective layer 6, reflecting and heat radiating layer 7, and protective layer 8 against environment. As for the mask layer 3, a material which changes the reflectance by heat is used. Or, an organic material which changes the optical constant to increase the reflectance for light when temperature rises is used for the mask layer 3. Thereby, by increasing the temperature of the mask layer 3 to increase the reflectance by the increase in the temperature, the information becomes invisible and can not be reproduced due to the increased reflectance of the layer.  The information recorded in the recording layer 5 can be seen only in the region where the temperature is not increased, and small bits can be reproduced only in that region.
Patent JP-H1125680-A (JP)
Title: Control device provided with flash memory
Inventor: SUZUI KEISUKE
IPC: G11C16/02
Filed: 1997-07-01
Abstract: PROBLEM TO BE SOLVED: To prevent erroneous control caused by threshold value voltage variation when control is performed using data stored in a flash memory. SOLUTION: Threshold value voltage (Vth) of each bit of a flash memory is detected, and when any of threshold value voltage (Vth) is smaller than 1.0 V or it is in a voltage range between 3.0 V and 6.5 V, that is, when any of threshold value voltage (Vth) is deviated from an appropriate voltage range set for writing and erasing data, control using data stored in a flash memory is prohibited.
Patent JP-S5878272-A (JP)
Title: Feature extracting method for picture pattern
Inventor: SAKURAI AKIRA
IPC: G06V10/42
Filed: 1981-11-02
Abstract: PURPOSE:To extract pattern features with a small number of data bits, by using the frequency distribution, which is indicated by respective appearance frequencies of small area information distribution patterns, as pattern recognition information. CONSTITUTION:When an output terminal B>A of a comparator CMP2 becomes 0, this signal is applied to an input terminal IN of a shift register SR2, and signal ''0'' indicating an inverted h>h1 is shifted bit by bit at every time the clock signal is inputted. A counter CO9 is counted up successively to select successively input terminals I1-I8 of a multiplexer MX1, and values of h1-h8 are inputted to an input terminal B of the comparator CMP2, and the result from the comparison of B>A (hn>inverted h) is inputted to the register SR2 successively. If the clock signal is inputted when the counted value of the counter CO9 is 7, 8-bit feature data b1-b8 are held in the register SR2, and 16-bit overall feature data is extracted to a shift register SR1.
Patent JP-H0339162-A (JP)
Title: Injection drug dissolving solution container
Inventor: SANO MINORU
IPC: A61J1/20
Filed: 1989-07-07
Abstract: PURPOSE:To prevent the contamination in a hospital due to the scattering of a powder medicine by placing an injection needle covered with a rubber cap on the flange of a glass bottle so that the edge thereof is turned upwardly by the hub part thereof and fixing the flange of the glass bottle and the hub of the injection needle covered with the cap by a cap member. CONSTITUTION:An injection needle 2 has function transferring the dissolving solution S in a glass bottle 1 to a drug bottle having a drug received therein, that is, injecting the same in said drug bottle and has one edge 4 and two liquid passages 7, 8 and a disc-shaped hub 5 having an outer diameter slightly smaller than that of a flange 3 is formed to the part slightly near to the lower part (on the side opposite to the edge) of said needle from the center thereof. When the dissolving solution S is transferred to the drug bottle, the passage 7 becomes the passage of the dissolving solution S and the passage 8 becomes that of air. The hub 5 is a part for fixing the injection needle 1 to the glass bottle 1, accurately, to the flange 3 of the glass bottle and, after a rubber cap 6 is externally fitted to the injection needle 2, the injection needle is placed on the flange 3 of the glass bottle 1 so that the edge 4 is turned upwardly to be fixed by a cap member 9.
Patent JP-H0838479-A (JP)
Title: Ultrasonic tomographic device
Inventor: ITO MITSURU
IPC: G06T1/00
Filed: 1994-07-28
Abstract: PURPOSE:To provide an ultrasonic tomographic device in which an image of a higher quality can be provided by preparing a plurality of interpolation curves and interpolation coefficients in a picture element position built in a display image forming circuit, and selectively using them for interpolation processing. CONSTITUTION:The first stage image memory 5 of a digital scan converter 3 samples echo signals at equal intervals from an ultrasonic transmission and receipt control circuit 2 followed by digitalization to file data by one picture element portion. The latter stage image memory 6 constructs and stores an image memory from the crude ultrasonic image data read from the first stage image memory 5 according to the instruction of a display image forming circuit 7. The display image forming circuit 7 reads the stored data for one image from the latter stage image memory 6 and transmits it to a display device 4. Various data interpolation curves and interpolation coefficients are stored in the display image forming circuit 7 of the digital scan converter 3, and a proper factor is selected according to the display image request of an operator to form the data of the latter stage image memory 6 from the data of the first stage image memory 5.