baber/WOPTO huggingface dataset:
Patent JP-H02155302-A (JP)
Title: Solid-state power amplifier
Inventor: KAZEKAMI YUTAKA
IPC: H03F3/24
Filed: 1988-12-07
Abstract: PURPOSE:To switch a satellite communication link without interruption at the switching of a solid-state power amplifier and to prevent the deterioration of a changeover switch contact by providing a non-latch relay a large power amplifier and a bias circuit. CONSTITUTION:The subject amplifier consists of a small power amplifier 6 amplifying an RF signal, an intermediate power amplifier 7 and a large power amplifier 8, and a non-latch relay 18 is provided between the large power amplifier 8 and a bias circuit 3. A control signal sent at the switching of an RF signal changeover switch 14 is fed to a control signal input terminal 19, the non-latch relay 18 is acted during that time and a power line fed to a drain terminal D of a FET 10 being an amplifier element of the large power amplifier 8 from the bias circuit 3 is interrupted. Thus, the function of the FET 10 stops during that time and an RF signal output from an RF signal output terminal 9 is stopped. Then the deterioration in the contact of the changeover switch 14 at the switching is prevented. Moreover, the switching time of the changeover switch 14 is very short and the satellite communication link is not interrupted.
Patent JP-H09121903-A (JP)
Title: Elastic shoe sole
Inventor: AOKI TOKUAKI
IPC: A43B13/14
Filed: 1995-11-04
Abstract: PROBLEM TO BE SOLVED: To provide an elastic shoe sole which can be distinguished from the periphery and which can be mounted on the bottom part of a shoe having a shock damping characteristic. SOLUTION: An elastic shoe sole concerned is composed of a shoe body 5 having a cavity 1 whose over-part is left open, and a hatch 3 located at the side as leading to the outside from the cavity and an elastamer buffer material 7 which is fitted in the cavity 1, has a hollow 6 internally, and is equipped with a through hole 12 in the front sidewall 11.
Patent JP-H10143902-A (JP)
Title: Optical pickup device
Inventor: YANAGISAWA TAKAMARO
IPC: G11B7/135
Filed: 1996-11-06
Abstract: PROBLEM TO BE SOLVED: To precisely read recording information on an optical disk by eliminating an effect of a DC offset of a tracking error signal due to an optical axis of an objective lens. SOLUTION: This device is provided with a polarization direction conversion means having first, second areas incident with a return beam of a tracking servo and divided by a boundary prolonging in the direction orthogonally intersecting with the tracking direction and changing only a polarization direction of a beam passing through the second area, a boundary drive means driving the boundary in the tracking direction, a beam division means 9 dividing the beams passing through the first, second areas by using a difference between their polarization directions and leading them in the directions different from each other and first, second detectors 10, 11 receiving the beams passing through the first, second areas.  In such a case, by driving the boundary synchronized with the objective lens, one side half of a beam spot is made to pass through the first area, and the other side half of the beam spot is made to pass through the second area.
Patent JP-H01152285-A (JP)
Title: Production of semiconductor device
Inventor: MINAMIMOMOSE ISAMU
IPC: C23F4/00
Filed: 1987-12-08
Abstract: PURPOSE:To improve etching characteristics by adding a specified percentage of one or more among gaseous fluorocarbon, sulfur hexafluoride and oxygen to gaseous fluorobromocarbon as principal gas and by etching silicon with the resulting gas. CONSTITUTION:The cathode 102 is placed opposite to the anode 101, a gas introducing inlet 105 and a gas sucking outlet 106 are formed and silicon is etched with gas prepd. by adding <25% one or more among gaseous fluorocarbon, sulfur hexafluoride and oxygen to fluorobromocarbon as principal gas. Since the added gas removes a produced carbon-based polymer and prevents the occurrence of etching residue, etching characteristics such as etching speed and anisotropy are improved.
Patent JP-S63168451-A (JP)
Title: Polyester resin composition
Inventor: HIRAHARA TAKUJI
IPC: C08L67/00
Filed: 1986-12-29
Abstract: PURPOSE:To make it possible to markedly improve the ultraviolet screening property of the obtained resin composition without adding a usual ultraviolet absorber, by adding a specified amount of naphthalenedicarboxylic acid or its derivative to a thermoplastic polyester resin. CONSTITUTION:This polyester resin composition is prepared by adding 0.001-10 pts.wt. at least one member selected from among naphthalenedicarboxylic acids and their derivatives of formulas I and II to 100pts.wt. thermoplastic polyester. In formula I, R<1> and R<2>, which may be the same or different from each other, are each hydrogen or an alkyl, alkenyl, aryl, aralkyl or alkylaralkyl group which may be substituted. In formula II, X is O or NR<3>, R<3> is the same as R<1> or R<2> or a halogen, or hydroxyl, and the acid anhydride group or imide group of -C(=O)-X-C(=O)- forms a ring by bonding to any one of the combinations of 1, 2 positions, 1, 8 positions and 2, 3 positions on the naphthalene ring.
Patent JP-H01151988-A (JP)
Title: Water purifying device
Inventor: SONE YASUSHI
IPC: B01D24/38
Filed: 1987-12-07
Abstract: PURPOSE:To improve water purification efficiency and also to reduce load on a motor for rotating a water purifier by making permeation length of a purifying filter large. CONSTITUTION:Water is subjected to convection by rotation of a water purifying filter formed with permeation ports of water to the upper part and the lower part and water is allowed to permeate to the vertical direction in the inside of the water purifying filter. For example, a permeation port 38 for suction is formed to the upper part of the water purifying filter 24 and a permeation port 34 for discharge is formed to the lower part thereof and a motor 2 is driven to rotate the water purifying filter and water is subjected to convection and thereby water is permeated to the vertical direction in the inside of the water purifying filter 24. As a result, water purification efficiency can be improved and the diameter of the filter 24 is made small and thereby load on the motor 2 can be reduced.
Patent JP-H01150354-A (JP)
Title: Semiconductor storage device
Inventor: MINATO YUKIO
IPC: G11C11/411
Filed: 1987-12-07
Abstract: PURPOSE:To shorter a writing time by providing a polycrystalline Si which becomes a high resistor on the top of the base region of a lateral bipolar load transistor TR, and respectively connecting both ends of the resistor to an emitter region and a collector region. CONSTITUTION:Assume that a P-N-P TRQ1, an N-P-N TRQ3 are turned ON and a P-N-P TRQ2, an N-P-N TRQ4 are turned OFF. When a current is fed from an emitter E5 so as to write, the TRQ2 and the TRQ4 which are OFF are turned ON. In this case, the potential of the resistor R2 is reduced, for example, to -0.9V. Then, when they are turned ON, the base b3 of the TRQ3 is decreased, and the TRQ2 is turned OFF. In this case, the collector C2 of the TRQ2 is raised to -0.2V. Thus, the potential of the base B1 of the TRQ1 tends to be raised from -0.9V to -0.2V. Here, since a high resistor R1 is inserted between the emitter E1 and the base B1 of the N-P-N TR, the base B1 is charged through the resistor, thereby writing.
Patent JP-S62275145-A (JP)
Title: Water-soluble moistureproof film of polyvinyl alcohol
Inventor: AOKI SHOICHI
IPC: C08L29/04
Filed: 1986-12-27
Abstract: PURPOSE:To obtain a water-soluble moistureproof film of PVA superior in waterproofness, by compounding pentaerythritol alone or its specific mixture to a PVA resin and producing a film by a casting process or a melt extrusion process in an aqueous system. CONSTITUTION:A film produced by a casting process or a melt extrusion process in an aqueous system after compounding a polyvinyl alcohol (PVA) resin with 5-20pts.wt. pentaerythritol alone or a mixture thereof which comprises pentaerythritol and its deriv. having chemical structures represented by formulae I and II and where the average degrees of substitution at X and Y on the basis of a hydroxyl radical are not more than 15mol%. In these formulae X represents a halogen element, a group of formula III or -O-NO2; R represents an alkyl; Y represents H, an alkyl or an acyl. As the above-mentioned pentaerythritol, pentaerythritols for industrial use, such as di- and tri-pentaerythritols, can be used.
Patent JP-H11140811-A (JP)
Title: Planking
Inventor: SUZUKI SHOYA
IPC: E01C9/08
Filed: 1997-11-12
Abstract: PROBLEM TO BE SOLVED: To provide a planking preventing mud from choking a space between reinforcing ribs even in the case of laying a planking body on the muddy unpaved ground and dispensing with cleaning to remove choking mud with a brush or the like at the time of removing the planking body so as to be able to perform removal work easily in a short time. SOLUTION: In a planking used by laying a plurality of plate-like planking bodies 11 on the ground longitudinally and laterally in an adjacent state, the lower face of the planking body 11 is protrusively provided with a plurality of reinforcing ribs 12, and a cover plate 16 is fitted to a fitting hole 15 of a fitting boss 14 provided at the lower end face of the planking body 11, by a flat head machine screw 18 serving as a fastener so as to cover a space between the reinforcing ribs 12 from below.
Patent JP-H08166065-A (JP)
Title: Shaft sealing device
Inventor: ODA CHIKAO
IPC: F16J15/324
Filed: 1994-12-14
Abstract: PURPOSE: To provide a shaft sealing device suitable for the continuous production of a polycondensation polymer, in particular, polyethylene terephthalate, etc., and excellent in the sealing performance. CONSTITUTION: A ring-shaped space 6 is formed between a cylindrical stationary ring 2 which is a size larger than a rotary shaft 1 and two rotary rings 3 fitted to the rotary shaft opposite to each other at each end of this stationary ring, two sets of seal packing 7 are fitted in this space, and two planes on the outer side in the axial direction of the seal packings and on the inner side in the axial direction of two rotary rings are sliding surfaces 14 respectively, and these sliding surfaces are orthogonal to the rotary shaft. This constitution provides the sealing device excellent in the sealing performance, and efficiently provides the polymerized product of excellent quality especially when the polycondensation resin is produced in the vacuum.
Patent JP-H09140584-A (JP)
Title: Electric water heater
Inventor: HAMADA KUNIO
IPC: A47J27/21
Filed: 1995-11-29
Abstract: PROBLEM TO BE SOLVED: To enlarge the sectional area of a heater so as to prevent breakage of a wire and to restrain water boiling noise during heat insulation by providing a heat insulation intermittent current applying means for intermittently applying a current to a heat insulating heater for keeping temperature at a designated degree during heat insulation. SOLUTION: When a heat insulation intermittent current applying means 15 enters a heat insulation mode, according to a signal from a temperature sensor 6, it is converted to the temperature information by a temperature detecting means 7, and if the temperature is below a designated heat insulation temperature, a current is applied intermittently to a heat insulation heater 5 to heat water, and if above the heat insulation temperature, the current application to the heat insulating heater 5 is stopped. The intermittent current application is performed in such a manner that first during a first designated time (e.g. three seconds), a current is applied to the heat insulating heater 5. In the lapse of the first designated time, the current application to the heat insulating heater 5 is stopped to be on standby during the elapse of a second designated time (e.g. 12 seconds).  In the lapse of the second designated time, again the heat insulation temperature is examined to repeat the above operation. Accordingly, the electric energy during current application for heat insulation can be reduced, so that the power of the heat insulating heater can be increased to the permissible limit of water boiling noise.
Patent JP-2001127634-A (JP)
Title: D/a converter
Inventor: TAGUCHI MASAHIKO
IPC: H03M1/80
Filed: 1999-11-01
Abstract: PROBLEM TO BE SOLVED: To provide a D/A converter where an R-2R system is adopted for low-order bits and high-order bits are weighted by resistors and that adopts the resistors for unit resistors while keeping precision against dispersion in the resistors and decreases the number of the resistors in use. SOLUTION: In the D/A converter, a 1st D/A converter 40 driven by digital data in low-order bits b0-b5 adopts the R-2R system and a 2nd D/A converter circuit 50 driven digital data in high-order bits b6, b7 adopts a weight resistance system employing a weight unit R.
Patent JP-H02156239-A (JP)
Title: Silver halide photographic sensitive material
Inventor: YOSHIDA TETSUO
IPC: G03C1/035
Filed: 1988-12-08
Abstract: PURPOSE:To obtain high sensitivity and high contrast by completely distributing the silver iodide in a silver halide phase having >=0.1mol% silver iodide content and incorporating group VIII metals of elements periodic table into emulsion layers. CONSTITUTION:The content of the silver iodide in the silver halide phase incorporated into emulsion particles is >=0.1mol%, more preferably 3 to 45mol%, more particularly preferably 5 to 10mol%. The distribution of the silver iodide in the silver halide phase contg. this silver iodide is completely uniform and the group VIII metals of element periodic table are incorporated into the emulsion layers. The size of the silver halide emulsion particles having the completely uniform silver iodide distribution is not particularly limited and is preferably 0.2 to 2mum, more particularly preferably 0.3 to 1mu. The high sensitivity and high contrast are obtd. in this way.
Patent JP-S63166207-A (JP)
Inventor: YOKOYAMA YUTAKA
IPC: H01G9/032
Filed: 1986-12-27
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-H07138608-A (JP)
Title: Production of metallic fiber sintered sheet
Inventor: MIZUMOTO YASUHARU
IPC: B22F3/11
Filed: 1993-11-17
Abstract: PURPOSE:To produce the metallic fiber sintered sheet consisting of only the metallic fibers by winding a sheet highly compounded with the metallic fibers contg. a specific ratio of the metallic fibers around a pipe having holes at its barrel surface via a partition wall sheet and sintering the inter-fibers at a temp. below the m.p. of the metallic fibers. CONSTITUTION:The sheet 2 highly compounded with the metallic fibers is produced by sheeting a fiber slurry contg. >=70wt.% metallic fibers by a wet process sheeting method. While the partition wall sheet 1 (alumina, etc.) is attached to this sheet 1 highly compounded with the metallic fibers, the sheet is wound around the pipe 3 (stainless steel, etc.) having the holes on the barrel surface and the fibers are sintered at temp. not exceeding the m.p. of the metallic fibers. As a result, the long-sized metallic fiber sintered sheet having a fine network structure, uniform and thin sheet properties and the brightness intrinsic to metal is rapidly produced.
Patent JP-H04183883-A (JP)
Title: Rust preventing method for vehicle body
Inventor: YOSHIDA TATSURO
IPC: B62D25/16
Filed: 1990-11-19
Abstract: PURPOSE:To fill a rust preventive sheet material consisting of a water-soluble resin, an inhibitor and expandable microcapsules into the bag structure part formed on a vehicle body and to surely prevent rust formation by sticking the above-mentioned rust preventive sheet material into the bag structure part and expanding this sheet material by heating. CONSTITUTION:The rust preventive sheet material S having about 20 to 500mum thickness is produced by stretching a mixture 11 composed of the water-soluble resin (polyurethane base), the inhibitor (phenyl-beta-naphthylamine, etc.) and the expandable microcapsules to a sheet shape and sticking thin foil 12 consisting of metals, such as Zn and Al which are base to steels, on both the front and rear surfaces of this sheet. This rust preventive sheet material S is stuck by an adhesive to one surface of the bag structure part 4 formed of, for example, a rear fender panel 1 and a wheel outer panel 2. The vehicle body is then heated for the purpose of solidifying the coating material, by which the rust preventive sheet S is expanded and is filled into the bag structure part 4. The generation of the rust on the inside surface of the bag structure part of the vehicle body is surely prevented in this way.
Patent JP-2001132856-A (JP)
Title: Flow control valve
Inventor: MIYATA YOSHIO
IPC: F16K5/04
Filed: 1999-11-01
Abstract: PROBLEM TO BE SOLVED: To rapidly change a communicating area with little variation of valve opening (with little rotation) without causing the enlargement of a flow control valve having a rotatable valve element. SOLUTION: In this flow control valve with the valve element 50 formed with an aperture part 50a with a variable communicating area with a fluid passage following the rotation of the valve element 50, an auxiliary aperture part 50b is provided for communicating with the fluid passage only in the partial rotating range of the valve element 50. In the rotating range in which the auxiliary aperture part 50b communicates with the fluid passage, the variation of the communicating area to the variation of valve opening can thereby be made extremely large, and this can be executed without causing the enlargement of radial dimension of the valve element 50 by shiftedly arranging the aperture part 50a and auxiliary aperture part 50b in the rotating direction of the valve element 50.
Patent JP-H07160358-A (JP)
Title: Time correcting method
Inventor: OHASHI MASAKAZU
IPC: G06F1/14
Filed: 1993-12-13
Abstract: PURPOSE:To correct and match the time of a timer of each terminal by a mutual communication among respective terminals without determining a specific terminal which serves as a master machine. CONSTITUTION:The differences of the time of the timer 1 of a terminal A from the time of timers 1 that other terminals B, C, and D are equipped are calculated respectively and the difference between the time of the timer 1 of the terminal A and the mean time of the time of the timers 1 that all the terminals A, B, C, and D are equipped is calculated on the basis of the differences. This difference is subtracted from the current time of the timer 1 of the terminal A to correct the time. As for the terminals B, C, and D, the time of the timers 1 that the terminals have is corrected by the same method with the terminal A.
Patent JP-S63164696-A (JP)
Title: Color image pickup device
Inventor: NAKAGAKI SHINTARO
IPC: H04N9/077
Filed: 1986-12-26
Abstract: PURPOSE:To easily generate output signals whose time base hardly varies by storing index signals in one horizontal scanning period generated as index signal generating pattern during the scanning with electron beam at least for an amount equivalent to one vertical scanning period. CONSTITUTION:In the vicinity of the end part in vertical scanning direction of the photoelectric conversion part 4 of an image pickup tube 2 and in an optical path leading to the photoelectric conversion part, the index generating pattern capable of generating index signals at least in an amount equivalent to one horizontal scanning period, is provided; the index signals equivalent to one horizontal scanning period generated during the scanning by the electron beam are stored in the memory device LM for one-frame period time. Signals outputted from the memory LM are supplied to a frequency conversion circuit FCONV2, and output signals from the circuit FCONV2 are supplied to a frequency conversion circuit FCONV3 as carrier wave for frequency conversion. Consequently, low band conversion color multiplex carrier wave signals outputted from the circuit FCONV3 scarcely includes an error in the time base.
Patent JP-H11243445-A (JP)
Title: Radio telephone system
Inventor: NISHIYAMA KOHEI
IPC: H04M1/66
Filed: 1998-11-02
Abstract: PROBLEM TO BE SOLVED: To flexibly correspond to needs of an operator by allowing an incoming call, when decoded originator information agrees with stored originator information and sending an incoming call reject signal, when it does not agree. SOLUTION: This system is provided with a mode 1, which unconditionally rings a bell to all incoming calls, a mode 2 which rings the ball when the preliminarily set originator number in an incoming call aggress with a received number by a baseboard circuit part 302, and a mode 3 which rejects all the incoming calls. An operation key part 306 inputs which should be used among the molds 1 or 3 and is seated in a memory part 304. Here, at the time of setting the mode 2, an originator telephone number that rings an incoming bell with a defined special key operation when an incoming call arrives is inputted and stored in the part 304, by the use of the part 306 and a displaying part 305.  Thus, it is possible to have the incoming bell rung, only when an incoming call number agree it, and on the other hand, enables identification of an originator by displaying the originator number on the part 305. An incoming call reject signal is outputted, when the incoming call number does notagree.
Patent JP-2000143355-A (JP)
Title: Prepared unshaped refractory
Inventor: SAKAKIYA KATSUTOSHI
IPC: C04B35/66
Filed: 1998-11-02
Abstract: PROBLEM TO BE SOLVED: To provide a prepared unshaped refractory capable of reusing more used refractories without carrying out surface modification. SOLUTION: This prepared unshaped refractory is obtained by crushing a used alumina-silica-based refractory having 40-80 wt.% of alumina content and containing a main component of the balance composed of silica and compounding <=60 wt.% of the sum total of <=20 wt.% of the resultant crushed refractory having a particle size within the range of 10-40 mm and <=40 wt.% of the crushed refractory having the particle size within the range of 3-10 mm with a raw material containing 10-20 wt.% of the sum total of an alumina raw material and a silica raw material having <=5 μm average particle diameter, 5-10 wt.% of an alumina cement and the balance of an unused refractory material which is an alumina-silica-based material having <=10 mm particle size.
Patent JP-H01154618-A (JP)
Title: Pulse propagation device
Inventor: SAKAMOTO FUMIHIKO
IPC: H04L7/02
Filed: 1987-12-11
Abstract: PURPOSE:To generate a pulse to be transmitted surely by supplying two pulses having a sufficiently larger pulse width than the pulse width to two corresponding transmission gates respectively with timewise deviation in order to generate the pulse to be propagated. CONSTITUTION:Two pulses having a pulse width sufficiently larger than the pulse width of the pulse to be propagated are fed respectively to two input terminals 30, 31 with timewise deviation. The pulses are received by reception gates 33, 36 via transmission gates 32, 33 and transmission lines 34, 37. The pulse outputted from the reception gates 33, 36 is propagated to the external device via an AND gate 39.
Patent JP-H08165772-A (JP)
Title: Stairs with roof
Inventor: SHIYOUKO TOSHIHIRO
IPC: E04B7/16
Filed: 1994-12-15
Abstract: PURPOSE: To reduce time and cost for construction of a stairs and reduce the construction period and cost of a whole building. CONSTITUTION: A stairs 1 with a roof is roughly constituted of a pair of side plates 10 parallel to each other, a plurality of treads 20 mutually parallelly provided between the side plates 10 with a specified distance, handrails 40 and a roof 30 fixed to the side plates 10, and the first and second floor landings 60, 50 installed at both upper and lower ends of side plates respectively. The side plates 10, respective treads 20, the first and second floor landings 60, 50 are connected to each other with bolts and nuts. Members 11, 12 constituting respective side plates, the treads 20, and the first and second floor landings constitute a parallel link structure respectively. And also the roof, columns 31 for the roof, and the handrails 40 constitute a parallel link together with the side plates 10.