baber/WOPTO huggingface dataset:
Patent JP-S61224874-A (JP)
Title: Inverter
Inventor: SHIMIZU KEIICHI
IPC: H02M7/48
Filed: 1985-03-29
Abstract: PURPOSE:To improve the reliability by setting the drive width (t) for driving a switching transistor to become t<1/4f with respect to an operating frequency (f), thereby increasing the circuit efficiency. CONSTITUTION:An inverter 2 formed of four switching transistors (Tr) Q1-Q4 is connected with a power source 1, and an inductive load 4 such as a discharge lamp is provided through a transformer 3. A switching improving capacitor C is connected between the primary windings N1 of the transformer 3. In this case, when TrQ1-Q4 are driven by a drive circuit 5, the drive width (t) is selected to become t<1/4f where (t) is the drive width, and (f) is the operating frequency of the inverter. Thus, the TrQ maintains ON state while causing a current to flow reversely, and even if a forward drive current is slightly delayed, it is normally turned ON to shorten the driving period.
Patent JP-S59191419-A (JP)
Inventor: OOISHI TETSUHISA
IPC: H02H3/02
Filed: 1983-04-12
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-S60208827-A (JP)
Title: Method of exposing mask substrate
Inventor: KATOU SHINYA
IPC: H01L21/027
Filed: 1984-04-03
Abstract: PURPOSE:To reliably remove the electricity charged in a substrate to be printed, by providing in a part of the substrate with portions not coated with resist for obtaining electrical conductivity before exposing the substrate to light. CONSTITUTION:Prior to spin coating a substrate 4, a thin film of resin such as polyvinyl chloride is formed at the four corners 8 thereof and dried. Resist for electron beams 7 coated on the substrate 4 is dried. A chrome surface where a conductive pin mounted on a holder is grounded and conducts electricity can be readily pulled out by peeling off the resin films together with the resist 7. Accordingly, the electricity charged in the substrate 4 can be removed reliably.
Patent JP-S63234865-A (JP)
Title: Semiconductor switching circuit
Inventor: MUKAI KANJI
IPC: H02M1/08
Filed: 1987-03-20
Abstract: PURPOSE:To miniaturize a semiconductor switching circuit and to reduce leakage current of a semiconductor, by using a depletion type P channel FET between P gate and the cathode of a thyrister. CONSTITUTION:When a current source 1 does not operate, the resistance is low between drain and source as the voltage across gate and drain is OV for a depletion type P channel FET 4. Consequently, if the voltage of sharp rising is applied across the anode and cathode of a thyrister 3, the voltage across P gate and cathode of the thyrister 3 is controlled so low that thyrister 3 is not made conductive. On the other hand, in the case of ON drive, as the current of the current source 1 flows into P gate of the thyrister 3 through a diode 2, the gate voltage of depletion type P channel FET 4 is raised by the amount of voltage drop portion in forward direction of the diode 2. Most of the current from current source 1 thereby flows to the P gate of the thyrister 3 to turn the whole circuit into a conductive state.
Patent JP-S58181441-A (JP)
Title: Manufacture of steering head pipe
Inventor: TANAKA SHIROU
IPC: B21D39/06
Filed: 1982-04-19
Abstract: PURPOSE:To obtain a steering head pipe which has no stepped part on the outside circumference of a pipe material and is good in workability of the post-process accordingly, by expanding one end of the pipe material like a trumpet, also reducing and elongating the intermediate part, and thereafter, restoring the outside circumference of the expanded part to its original state. CONSTITUTION:One end of a pipe material 5 is expanded 8 like a trumpet in a die 1, and thereafter, a punch 7 having an outside diameter L2 larger than an inside diameter L1 of the pipe material 5 and also having a tapered tip part 6 on the lower part is pressed into the pipe material 5. Subsequently, the intermediate part of the pipe material 5 is reduced and elongated by the punch 7. In this case, length of the pipe material 5 is elongated to about 1.35 times. Subsequently, the pipe material 5 is taken out of the die 1, is pressed into a die 11 having a cylindrical internal form, and the outside circumference of said trumpetlike expanded part 8 is restored to its original pipe shape 8'. In this case, a cylindrical inside circumferential face (a) of the expanded part 8 is formed to a ring-like inclined face as shown in a figure. As a result, it is possible to obtain a steering head pipe consisting of the pipe material 5 having bulge parts 8', 8'' on only the upper and lower ends, and having no bulged part on the outside circumferential face.
Patent JP-S60208879-A (JP)
Title: Piezoelectric porcelain vibrator
Inventor: FUJII HIROMITSU
IPC: H01L41/08
Filed: 1984-04-03
Abstract: PURPOSE:To block displacement of a vibrator in the direction of the presence of vibration stopping members and to obtain a large mechanical displacement in the desired direction, by dividing a piezoelectric porcelain device in the direction perpendicular to the desired displacement direction, and providing a plurality of vibration stopping members of insulators so as to form a unitay body. CONSTITUTION:In a piezoelectric porcelain vibrator 30, full-surface electrodes 3 and 4 are formed on both main surfaces of a piezoelectric porcelain constituting body 5. The vibrator has a length (l), a width (w) and a thickness (t). In order to increase the displacement in the direction of the length (l), one plate shaped vibration stopping member 6, which has a cross section of t1Xl1 and a length w1 is provided in each of warts between five square-cyclinder shaped piezoelectric porcelain pieces 7. The members 6 are fixed and a rectangular piezoelectric porcelain constituting body 5 is formed. It is desirable that the length w1 of the vibration stopping member is approximately equal to the width (w) of the vibrator and that the length l1 of the cross section in the direction (l) of the piezoelectric porcelain vibrator is as small as possible. It is also desirable that the length t1 to the cross section in the direction of the thickness (t) is the same as the thickness of the piezoelectric porcelain piece so that irregularity is obtained with respect to the electrodes and the electric connection of the electrodes are not cut off.
Patent JP-H09258699-A (JP)
Title: Liquid crystal display device
Inventor: YAMAGUCHI HISASHI
IPC: G09G5/38
Filed: 1996-03-22
Abstract: PROBLEM TO BE SOLVED: To provide a display device in which an interface is simplified. SOLUTION: This device is provided with a start pulse generation circuit 6 giving timing for displaying a received video at a fixed position on a liquid crystal display panel, a start pulse generation circuit 7 giving timing for displaying a received video at the prescribed position on a liquid crystal display panel based on data-enable signal indicating an effective display period about the external received video, selectors 8, 9 selecting these circuits in accordance with a selecting signal. In this case, the device has a data-enable signal detecting circuit 11 detecting a data-enable signal and outputting this detected result to selectors 8, 9 as a selecting signal.
Patent JP-H06281616-A (JP)
Title: Ion-selective electrode
Inventor: YAMASHITA KOTARO
IPC: G01N27/333
Filed: 1993-03-25
Abstract: PURPOSE:To maintain the performance of an ion selective electrode for a long period by constituting the electrode in a metal/metallic salt in which a conductive layer composed of an internal solid electrode metal is brought into contact with a layer of the insoluble salt of the metal. CONSTITUTION:A flow passage 5 through which a bio-liquid to be measured is made to flow is provided in an electrode container 1 and part of the wall surface of the passage 5 is opened. An internal solid electrode 3 having a metal/ metallic salt structure and ion sensitive film 4 formed on a substrate composed of a hydrophobic high polymer substance are put upon another and the laminated body is fitted to the opening so that the film 4 can be brought into contact with the bio-liquid. The solid electrode 3 is constituted of an internal electrode which has the metal/metallic salt structure in which a conductive layer is brought into contact with a layer composed of the insoluble salt of the metal and the anion of the insoluble salt is composed of tetraphenil borate or tetraalkyl borate ions or their derivatives. In addition, the film 4 must be insoluble in water, because the film 4 must be able to select specific ions and sample solutions are aqueous solutions, but no hydrophilic nor hydrophobic properties are required for the film 4.
Patent JP-S59191937-A (JP)
Title: High-speed logical circuit
Inventor: TAKAHASHI KAZUKIYO
IPC: H03K19/0952
Filed: 1983-04-15
Abstract: PURPOSE:To reduce gate capacity and to attain a high-speed operation for an NOR circuit using an FET by using a gate electrode to which an input signal is supplied in a cut-off state or in a pentode area. CONSTITUTION:When the logical signals supplied to terminals 24-26 are all set at low levels, the potential of a circuit contact 50 is set at a low level and undergoes a level conversion through a level shifter 27. This level converted potential appears at a contact 51 and is delivered after the inversion of logical level carried out by an inverter 29. When the value obtained by subtracting the gate threshold voltage VT of each FET from the high level VIH of the logical input signal voltage is lower than the voltage VDD of a terminal 11, each FET has a pentode action. Therefore, the gate capacity is greatly reduced compared with a triode area. As a result, the capacitive load of a driving circuit which supplies the logical signal to such an NOR circuit is reduced. Thus the NOR circuit can be driven at a high speed and with small power consumption.
Patent JP-H10261602-A (JP)
Title: Device and method of manufacturing semiconductor device
Inventor: SAKAI YUICHI
IPC: H01L21/304
Filed: 1997-03-19
Abstract: PROBLEM TO BE SOLVED: To avoid defectives due to the shortcircuit.disconnection of wirings of a semiconductor device by a method, wherein a damage giving member to the surface of a semiconductor safer as well as a polishing member for polishing the damaged semiconductor surface are provided. SOLUTION: A polishing cloth 7 is fixed on a rotary disc 6. Moreover, a packing material 9 is also fixed beneath a polishing head 10. Furthermore, both of the polishing head 10 and a damage-giving member 5 are constituted, so that a semiconductor wafer 1 is pressed against the damage-giving member 5. In such a constitution, before polishing the semiconductor wafer 1 on the rotary disc 6, the polished surface of the semiconductor wafer 1 can depressed against the surface of the damage-giving member 5, thereby enabling the fine cracks and indentations on the damage-giving member 5 to be formed on the polished surface of the semiconductor wafer 1.  Through these procedures, the surface flatness of the semiconductor wafer after finishing the polishing step can be improved, thereby enabling defectives such as disconnection, etc., of the wiring of semiconductor device due to the incomplete transfer, etc., of a circuit pattern to be avoided.
Patent JP-H10269715-A (JP)
Title: Disk reproducing apparatus and method
Inventor: NAGAI YUTAKA
IPC: G11B27/36
Filed: 1997-03-19
Abstract: PROBLEM TO BE SOLVED: To prevent that the reproduced clock becomes unstable to reduce reliability of the error correcting process by executing demodulation with the reproduced clock reproduced in an input rate of the input data and executing error correction in the predetermined time through operation with the clock of the fixed frequency. SOLUTION: A demodulating means 8 demodulates a serial data 7 read from a disk 1 and then transfers it to RAM12. RAM12 stores data before error correction and data after error correction. An error correcting means 17 reads the demodulated data of RAM12 with the error correction start signal 22 from a comparing means 21 and starts error correction. During the error correction, an external signal is not accepted and error correction is continued until the error corrected result is written again to RAM12. The error correcting means 17 operates with a master clock without any influence of the reproduced clock 6. Therefore, independent error correction can be done faster than the demodulation without any influence of the frequency variation of the demodulation.
Patent JP-H05269431-A (JP)
Title: Coating method for outer peripheral face of pipe with ultraviolet-curing paint
IPC: B05D1/02
Filed: 1992-03-25
Abstract: PURPOSE:To dispense with a work for removing a coating without a result wherein an ultraviolet-curing paint flows into the inner face of a steel pipe by spraying the ultraviolet-curing paint in a mist-like shape on the outer peripheral face of a steel pipe in a method for coating the outer peripheral face of the pipe to be coated with the ultraviolet-curing paint. CONSTITUTION:An ultraviolet-curing paint stored in a paint tank 6 is pumped out by means of a pump 7 and is fed into a paint spray nozzle 5. This paint spray nozzle 5 has an elliptic opening 5a and as the ultraviolet-curing paint is sprayed out under high pressure condition from this opening 5a, it is sprayed on the outer peripheral face of a steel pipe 2 in a mist-like state with a small particle diameter. Then, the steel pipe 2 coated with a specified film thickness is stroked by means of a stroking apparatus 8 at the rear of a coating booth 3 to make a uniform film thickness condition and it is irradiated with ultraviolet rays by means of an ultraviolet ray irradiating machine 9 to cure the coating film.
Patent JP-S62224416-A (JP)
Title: Plate thickness control method for rolling mill
Inventor: HOSHINO IKUYA
IPC: B21B31/20
Filed: 1986-03-25
Abstract: PURPOSE:To reduce the equipment cost by detecting outlet side plate thickness variation of a rolled stock as load variation on a load cell and compensating the outlet side plate thickness variation by adjustment of a balancing force of backup rolls. CONSTITUTION:Both a load cell 1 detecting variations in the outlet side plate thickness of a rolled stock and an regulator 7 for balancing force of backup rolls 2 and 3 are set for a rolling mill. A load variation DELTAPLC detected by the cell 1 is sent to a block 5; a coefficient is calculated and is sent to an adder 101 to perform addition to a balancing force variation DELTAPs. An adder 102 adds an output of a block 6 to the balancing force variation DELTAPs and the sum is sent to the regulator 7. Thus, the balance adjustment is automatically performed and the outlet side plate thickness is controlled to be the target value with a stable outlet side plate thickness variation. The equipment cost is reduced because no high price and high accuracy controller is required.
Patent JP-S56162846-A (JP)
Title: Ic gang bonding device
Inventor: TANAKA YOSHIAKI
IPC: H01L21/60
Filed: 1980-05-20
Abstract: PURPOSE:To prevent a tape from being twisted by providing two sets of X-Y tables in superposed manner under a tape conveying passage and providing a TV camera and a bonding tool to be positioned with the IC chip and the tape to a supporting column. CONSTITUTION:A tape 20 is guided by a guide 23 at a pitch, is positioned by a positioning lever 25, and an IC chip is fed at a pitch by a supporting table 16 by the movement of the second X-Y table 4. A tape 16 is raised to a positioning place by a cam 19, the X-Y table is moved by a pulse motor, and a bonding area in a camera and the IC chip are matched to the position of the tape. Then, a tool 14 is lowered to press the tape onto the IC ship, and the finger of the lead is connected to the bump of the IC chip. Thus, it can enhance the moving accuracy of the tape and can prevent the tape from being twisted.
Patent JP-H01239851-A (JP)
Title: Thin film forming device
Inventor: SUZUKI NOBUMASA
IPC: C23C16/50
Filed: 1988-03-18
Abstract: PURPOSE:To form a film having less plasma damage and less internal stress on a base, to form a film having less internal stress to cope with an increase in the diameter of a wafer, and to suppress the mixture amount of hydrogen, by providing means for applying a voltage between a reduced electrode and a reaction vessel to generate a plasma, and means for radiating the base with light. CONSTITUTION:Means for holding one or more bases 3 therein, a reaction vessel 2 having two gas inlets 4a, 4b for introducing gas thereinto, electrodes 1 having 1/10 or less of the area of the inner wall of the vessel 2 and mounted near one inlet 4a, means 5 for generating a plasma in the gas introduced into the vessel 2, and means 6 for radiating the base 3 held in the vessel 1 with ultraviolet, visible or infrared light not absorbed by the introduced gas are provided. For example, the area of the electrode 1 is 200cm<2>, the area of the vessel 2 is 5000cm<2>, and their area ratio is 0.04. A 6-inch Si base is employed as the base 3, and a Xe lamp is employed as a light source 6.
Patent JP-H11264486-A (JP)
Title: Heat insulating valve box for high temperature gas
Inventor: FUJIKAWA YUTAKA
IPC: F16K51/00
Filed: 1998-03-17
Abstract: PROBLEM TO BE SOLVED: To provide a heat insulating valve box for high temperature gas preventing a heat insulating material in a roof part from dropping down. SOLUTION: A heat insulating board 15 is mounted in the inner side surface of a ceiling 14 of a valve box cover 3 and supported by covering a lower surface of this board with support members 16a, 16b suspended to the ceiling 14 made of a heat resisting stainless steel plate. In this way, the heat insulating board 15 is prevented from directly touching high temperature gas, a defect of the heat insulating board 15 is prevented, also the heat insulating board 15, even when it is damaged, is prevented from dropping down.
Patent JP-S56164262-A (JP)
Title: Transmission for vehicle
Inventor: KATAYAMA MORIMITSU
IPC: F16H3/08
Filed: 1980-05-19
Abstract: PURPOSE: To enable change overs of a plurality of steps of speed change, and forward and backward motions, and simplify the construction of the manipulation system and make the device compact by sliding a selector on the same axial core in the direction of the axial core.  
     CONSTITUTION: A coupler 18 is provided on a transmission shaft 15, and cylindrical shafts 19W21 which operate in linkage with the transmission system having a different transmission ratio, are provided in a relatively rotatable manner. Meshing parts 8, 22, 26 and 29 are provided at every required interval in the direction of the shaft core of a transmission shaft 15 through meshed parts 33 and 34, on the side ends of the couplers 18 of respective cylindrical shafts 19W21, and a selector 32 is fitted in the shaft core direction of the transmission shaft 15 over the coupler 18 and the meshing parts 8, 22, 26 and 29. Meshed parts 33 and 34 are separately provided in the direction of the core of the transmission shaft 15 around the inner periphery of the selector 32 so that one of the meshed parts constantly meshes with  the coupler 18 and another selectively meshes with respective meshing parts 8, 22,  26 and 29. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H04227572-A (JP)
Title: Method and system for improving database access performance
Inventor: JIYON DEII KONRII
IPC: G06F12/00
Filed: 1991-03-29
Abstract: PURPOSE: To unnormalize the normalized relation and to improve the access to a data base so as not to waste the unnecessary time for a normalized record connection operation. CONSTITUTION: In this system, the mapping records are held between a denormalization column and a basic column where the denormalization column is acquired. Then a processor accesses the links turned into the records, so that a data base is held with no self-conflict and also the data are retrieved as much as possible out of the unnormalization column.
Patent JP-S54157372-A (JP)
Title: Cooling system for refrigerator or the like
Inventor: SASAKI TAKAO
IPC: F25D23/00
Filed: 1978-06-02
Abstract: PURPOSE:To hold further improved degree of freshness in the stored goods by forming blast passage parts and cooling elements with use of synthetic resin material mixed with ionized ores. CONSTITUTION:Fan 11, duct 12, exhaling grilles 13, 14, inhaling grilles 15, 16 are formed by thermoplastic synthetic resin material, such as vinyl chloride or the like mixed with natural ores containing radioactive elements, such as radium, radon, strontium or the like. Besides, those surfaces are coated with electric charge preventive material. Such a constitution serves for emitting radioactive rays from these materials in order to produce minus ions. Since these minus ions are diffused to all corners of the refrigerator by circulating air current in it, preservation and conservation on the stored goods are able to be favorably improved.
Patent JP-S59193705-A (JP)
Title: Hot rolling method by planetary mill line
Inventor: TAKAHASHI HIROKI
IPC: B21B37/22
Filed: 1983-04-18
Abstract: PURPOSE:To manufacture stably a hot rolled sheet having prescribed width by controlling a compressive force imposed longitudinally on a material to be rolled between the 1st and 2nd feed rolls to a prescribed value in a planetary mill line. CONSTITUTION:In a planetary mill line consisting of a main body 1 of planetary mill, the 1st feed roll 2, and the 2nd feed roll 3, a slab 4 of a material to be rolled is fed to the roll 3 and is forced into the main body 1 by the rolls 3, 4. At that time, a compressive force in the longitudinal direction imposed on the slab 4 between the rolls 3, 2 is controlled in a prescribed value by using as controlling parameters, for instance, the difference between loading powers of rolls-3,2-driving motors. In this way, a rolled sheet having prescribed width can be hot-rolled by the main body 1, and the yield in width is remarkably improved.
Patent JP-S61275223-A (JP)
Title: Microbiological preparation of human blood serum albumin
Inventor: MAIKERU NATSUPU
IPC: C12N15/00
Filed: 1986-03-25
Abstract: The method comprises the culturing of a bacterium (E.coli) capable of providing for the stable maintenance of a plasmid containing an inducible promoter (Ptrp) upstream of the penicillin amidase promoter, the ribosome binding site of the penicillin amidase gene, and the penicillin amidase signal peptide fused with the human serum albumin structural gene.
Patent JP-S54157177-A (JP)
Title: Molding device for top board with water sink
Inventor: TSUJI TOSHIHIRO
IPC: B29C39/22
Filed: 1978-06-02
Abstract: PURPOSE: To mold the title product having improved quality and appearance, by solidifying a resin injected into a uniform gap provided between the board and the water sink with an elevating sink support.  
     CONSTITUTION: The plate 16 comprising bored holes is placed on the bottom force 11 with the upside down. The plungers 21 and 22 are operated to bring the edge 16a into contact with the elastic sealing material 13. The water sink 20 is engaged with the supports 18, and placed at a given position with the upside down without contacting the material 13. The bottom force table 3 is moved by the operation of the first plunger 2 to a given position on the support 4 side, and the top force table 6 is lowered to press the sink member 20 and the board 16 to the bottom force 11.  The sink 20 is lowered while being supported by the supports 18, and pressed to  part of the material 13 to form a given gap t between the sink and the open edge  16a of the board 16. A casting resin is cast into the gap t during a given pressing  time, and the top force 24 is lifted after curing. The bottom force 11 is returned to  the original position to complete one casting step, and the board 16 and the sink 10  are integrated. 
     COPYRIGHT: (C)1979,JPO&Japio