baber/WOPTO huggingface dataset:
Patent JP-H10319174-A (JP)
Title: Boiling water reactor power plant
Inventor: FUJITA YOSHIO
IPC: G21C19/07
Filed: 1997-05-16
Abstract: PROBLEM TO BE SOLVED: To provide a boiling water reactor(BWR) capable of maintaining reliability of pool water cooling and purification equipment and reducing the size of reactor building even in the case with providing the reactor building with two fuel storage pools. SOLUTION: A pool water cooling and purification equipment of a fuel storage pool 2b is constituted of a surge tank 7b, a pump 8b, a heat exchanger 9b, filtering demineralizing devices 10a, 10b, etc. The pool water purification equipment of a suppression pool 3 is constituted of a pump 8c, the demineralizing device 10b, and the upstream sides of the pump 8b and the pump 8c are connected with a connection pipe 13 and the downstream sides of the pump 8b and the pump 8c are connected with a connection pipe 14.
Patent JP-S5647126-A (JP)
Title: Thresholddveryifying zeroopoint crossscomparator
Inventor: ROBAATO KEISU POOTOUEI GARUPIN
IPC: H03K17/13
Filed: 1980-09-12
Abstract: In carrier and timing recovery systems for high performance data modems it is essential to employ threshold comparators and to be able to determine accurately zero-crossing instants. The circuit of the invention comprises a comparator with feedback which produces a positive transition of the comparator output in response to the negative zero-crossing transition of the input signal on condition that the previous half-cycle of the input signal has exceeded the positive reference threshold. In a practical arrangement two comparators are provided together with a pair of bistable storage elements which produces a narrow pulse in response to the negative zero-crossing transition of an input signal provided that the input signal has exceeded the positive reference threshold applied to the second comparator.
Patent JP-S62284379-A (JP)
Title: Improving method for repeat characteristic of photosensitive body in inverted image formation
Inventor: WATANABE MASANORI
IPC: G03G15/22
Filed: 1986-06-02
Abstract: PURPOSE:To prevent an accumulation of a charge of an opposite polarity, to raise an image density and a contrast, and to improve a repeat characteristic of a photosensitive body, by constituting it so that a powder image is inverted forcibly by providing a charge of the opposite polarity, and it is transferred by providing a charge of the same polarity after a uniform exposure. CONSTITUTION:An electrostatic latent image is formed by exposing a photosensitive body 2 which has been electrified to the positive polarity by a corona electrifier 3, by an optical system 4, a toner powder which has been electrified to the positive polarity is carried to the photosensitive body by a developing device 5, and a powder image is inverted forcibly to the opposite polarity by a transfer corona discharge device 8. Subsequently, it is attenuated to a uniform potential by a pre-exposing device 10, a charge of the positive polarity of the same polarity is provided by a transfer corona discharge device 9, cleaning is executed by a device 14 after a transfer, and an exposure, a development and a transfer of the next processes are repeated. Accordingly, an accumulation of a charge of the opposite polarity is prevented, and prior to an image forming electrification, a trap in the photosensitive body is filled with a charge of a specific polarity, an image whose image density and contrast are high is obtained, and a repeat characteristic of the photosensitive body can be improved.
Patent JP-H08305772-A (JP)
Title: System for preparing document for foreign tour
Inventor: MASUDA NOBUATSU
IPC: G06Q50/30
Filed: 1995-04-28
Abstract: PURPOSE: To easily prepare a new or changed application or submitting document. CONSTITUTION: This system is provided with a procedure for attaching name to a new foreign tour document and recording the document as a new document, a procedure for selecting printing items necessary for the named new foreign tour document, a procedure for recording the printing positions of the selected printing items, the size of printing character, an interval between printing characters, etc., a procedure for displaying the name list of foreign tour documents prepared by an operator and allowing the operator to select a document necessary for printing, a procedure for additionally inputting and recording data not included in a customer data base or a reservation data base by the operator, and a procedure for printing out the selected document in accordance with the printing items, the printing positions of the items, the size of printing characters, and the interval of printing characters, etc., which are inputted by the operator. When the format of the document is changed, the operator changes the selection of printing items, the printing positions of the items, the size of printing characters, the interval of printing characters, and so on.
Patent JP-H07329323-A (JP)
Title: Thermal transfer printer
Inventor: NISHITANI HITOSHI
IPC: B41J25/304
Filed: 1994-06-09
Abstract: PURPOSE:To improve the life reliability and the printing quality level of a thermal transfer printer as compared with those of a conventional thermal transfer printer by preventing the inclination of a thermal head base due to pressing of a platen by the head. CONSTITUTION:A rib 5a is formed at the bottom of a thermal head base 5 in a printing state through a point to be pressed of a platen 2 by a thermal head 8 in a direction perpendicular to the longitudinal direction of the platen 2. Thus, when the base 5 prints, it is pressed to the platen 2, and even if it is received by its reaction, its load is uniformly supported by two screws 6, 7, and suppressed to the minimum limit by loosening of the screws 6, 7. Since rib 5a is formed in a direction for generating the deformation of the base 5 by a moment to be applied to the base 5, the deformation of the base 5 is suppressed to the minimum limit.
Patent JP-S5556538-A (JP)
Title: Method of and apparatus for humidifying room heated by force-exhaust type heater
Inventor: YAMAKAWA TOYOO
IPC: F24F6/00
Filed: 1978-10-19
Abstract: PURPOSE: To accomplish simple and inexpensive himidification of the inside of the room by using steam heretofore discharged outside with carbon dioxide or the like for humidification of the room through condensation into water with a cooling device.  
     CONSTITUTION: Exhaust gas discharged through an exhaust pipe 2 of a forced- exhaust type heater 1 is cooled with a cooling device mounted at the tip of the exhaust pipe. The steam in the exhaust gas is condensed into water and collected into a water accumulator 4 through a filter 5. Subsequently, it is introduced to an evaporator in a heating chamber through a conduit 6 and evaporated by a hot air or the like of the heater to humidify the inside of the room. With such an arrangement, there is no need for troublesome water feed to humidifiers or the like as in the past while the amount of water for humidification correlates the amount of heat generated from the heater. Thus, the humidify can be automatically maintained at a constant level all the time. In addition, the room is free from pollution as water as distilled is used. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5353209-A (JP)
Title: Diversity receiving unit
Inventor: YAMAMOTO OSAMU
IPC: H04B7/08
Filed: 1976-10-25
Abstract: PURPOSE:To constitute a space diversity receiver without using a high-frequency switch, etc., by stopping the amplification function of the receiver where a receiving electric field is lowered.
Patent JP-S61288508-A (JP)
Title: Surface acoustic wave device
Inventor: TAKEMA TAKEMITSU
IPC: H03H3/08
Filed: 1985-06-14
Abstract: PURPOSE:To improve the in-band characteristic by adopting logarithmic weighting so as to suppress a reflection wave at a dummy electrode not participating in excitation or reception of a direct surface acoustic wave and avoiding it from giving effect on the propagation of the surface wave. CONSTITUTION:One side of the dummy electrode is removed by logarithmic weighting and a common electrode is adopted so as to eliminate the path difference between the electrode and space in the surface wave propagation path on an effective aperture, the dummy electrode is removed in the other, an electrode member is coated to an undesired space to suppress reflection, a tilt electrode 3 is used at the output side and a tilt electrode 2 without weighting is used for the input side. The advantages of the tilt electrodes are used, the reflection in the electrodes is more suppressed and since no path difference exists between the electrode and space in the surface wave propagation path on the effective aperture, the amplitude ripple is improved by nearly 0.2dB and the group delay time ripple is improved by nearly 8nsec in the in-band characteristic.
Patent JP-S61288361-A (JP)
Title: Electron beam welding device
Inventor: HAMADA KAZUNORI
IPC: B23K15/00
Filed: 1985-06-14
Abstract: PURPOSE:To prevent an invasion of positive ions in a metallic vapor or gas produced at the processing position into an anode, and prevent an abnormal discharge from occurring, by furnishing a trap to apply a minus potential, between a focusing coil and the anode. CONSTITUTION:This electron beam welding device is composed of a filament 22 to generate electron beams, a cathode 50 and anode 28 through which electron beams are passed and accelerated, and a focusing coil 30 to focus electron beams. In this case, a trap 13 is added in the electron beam passage between the anode 28 and the focusing coil 30, and applied with a minus potential from a power source 36. Ions charged in minus value in a metallic vapor or gas 21 produced from a material 10 to process are trapped by the trap 13. Therefore, 50 is prevented, an abnormal discharge between the both electrodes is reduced broadly, and the processing accuracy can be improved.
Patent JP-2000319252-A (JP)
Title: Production of maleimide derivative
Inventor: KOIKE NOBUYUKI
IPC: C07D207/452
Filed: 1999-05-10
Abstract: PROBLEM TO BE SOLVED: To obtain the subject derivative in a high yield by subjecting a specific maleimide carboxylic acid ester and a specified polythiol to a transesterification reaction. SOLUTION: This method for producing a maleimide derivative comprises subjecting (A) a maleimide carboxylic acid ester of formula I [(n) is l to 10; R1 is a 1 to 10C alkyl or a 3 to 10C cycloalkyl] and (B) a polyol of the formula: R2-(OH)m [(m) is 1 to 6; R2 is a (poly)ether-linked chain or (poly)urethane-linked chain which has an average mol. wt. of 44 to 100,000 and is prepared by linking organic groups selected from (cyclo)alkylene or aryl(alkylene) groups through ether bonds or urethane bonds] to a transesterification reaction preferably in the presence of a transesterification reaction catalyst at the atmospheric pressure or a reduced pressure at room temperature to 150 deg.C preferably with the removal of the by-produced alcohol. The component C is preferably a dialkyl tin (II) oxide [for example, dibutyl tin (II) oxide].
Patent JP-S5829440-A (JP)
Inventor: UEDA YASUHIRO
IPC: A61B1/00
Filed: 1981-08-17
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-H02307174-A (JP)
Title: Symbol reading device
Inventor: SATO KOJI
IPC: G06K7/015
Filed: 1989-05-22
Abstract: PURPOSE:To surely read even a bar code having the small height and a slender bar code with a single operation by changing the viewfield position of an image sensor. CONSTITUTION:When a rotary solenoid 6 is driven, a holder board 11 turns reciprocatingly and at the same time the light is radiated from an LED light source 3. The radiated light is reflected by a bar code 2 when a rectangular opening part la of a scan head 1 applied to the code 2. The reflected light forms an image on a condensing surface through an optical system 4. The viewfield of an image sensor 5 is completely coincident with the direction of an image 17 of the code 2 when the sensor 5 is turned as shown by a viewfield 5b even if the head 1 is applied wrong to the code 2 and the image 17 is shifted from the long side direction of a viewfield. Thus the code 2 can be correctly read. As a result, the code 2 can be surely read with a single operation even if the code 2 has a slender form or the small height.
Patent JP-H04329594-A (JP)
Title: Magnified display device
Inventor: MIZUKAMI HAJIME
IPC: G09G5/00
Filed: 1991-04-30
Abstract: PURPOSE:To improve the processing accuracy by making the magnified display device simple and inexpensive and stabilizing the sampling operation of A/D conversion. CONSTITUTION:An A/D conversion control part 16 is provided with a horizontal scanning frequency detecting circuit 31 which supplies a counting clock of frequency corresponding to a video source of maximum predicted scanning frequency to count the counting clock in one horizontal scanning period of a video signal and a PLL circuit part 19 which has a programmable counter 21 whose frequency division ratio is varied and set according to the counting result of the counter 30, compares the phase of the horizontal synchronizing signal of the video signal by dividing the frequency of the output signal of a VCO 20 as a sampling clock K1 by the counter 21, and controls the VCO 20 with the phase difference to fix the clock K1 almost at the maximum sampling frequency. Then a filter part 14 for signal return prevention is provided with one return preventing filter 32 corresponding to the A/D conversion of the nearly maximum sampling frequency.
Patent JP-H10321681-A (JP)
Title: Wafer prober and replacement method of test board
Inventor: TAMURA TOMOAKI
IPC: H01L21/66
Filed: 1997-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a wafer prober that can replace a test board without opening or closing a test head, suppresses the fracture, for example, of pogo pins and positioning guides, and reduces the mental burden of a worker, and can cope with the need for automation. SOLUTION: A wafer prober 30 is used for measuring the electrical characteristics of a semiconductor device being formed on a semiconductor wafer 12 and a test board 8 is detachably connected to a test head 1 that is provided at the wafer prober 30 and can be freely opened and closed. When the test head 1 is closed, the wafer prober is constituted so that it can be slid along a surface that is in parallel with a junction surface to the test head 1 or a surface that can approximate it while the test board 8 is being separated from the test head 1.
Patent JP-S62287914-A (JP)
Title: Electric discharge machine
Inventor: ITO TETSURO
IPC: B23H1/02
Filed: 1986-06-03
Abstract: PURPOSE:To prevent accidents due to damage of an electrode, by detecting the degree of insulation of an insulative machining fluid existing in the gap between the electrode and a workpiece and by comparing thus detected value with a reference value to control the width of pulses applied across the interpole gap. CONSTITUTION:A control instruction signal generating device 17 superposes high frequency alternate voltage from an electrical sources 18 during a deionizing period or the quiescent time of pulse voltage applied between a wire electrode 2 and a workpiece 1 from a machining power source 15, and a current detector 6 detects interpole leakage current running due to the lowering of insulation of the machining fluid 3 which is caused by machined chips, so that thus detected current is compared with a preset reference value to discriminate the interpole condition. With the result of the discrimination a control instruction signal is fed to a control device 14 and a machining power source 15, and if there would be any risk that the degree of insulation of insulative machining fluid 3 is lowered so that abnormal electric discharge occurs, the width and current peak value of pulses applied to the interpole gap from the machining power source 15 are simultaneously controlled. Thus, it is possible to prevent breakage of the wire electrode without the machining rate being lowered.
Patent JP-H01298052-A (JP)
Title: Sound absorbing sheet
Inventor: UMEOKA KAZUAKI
IPC: C04B32/00
Filed: 1988-05-26
Abstract: PURPOSE:To form the sound absorbing sheet of smooth surface absorbing the sound waves of specified frequency range by covering the surface of permeable sheet consisting of fibrous structural body with the material of viscoelasticity. CONSTITUTION:This sound absorbing sheet is formed by covering the surface of permeable sheet consisting of fibrous structural body or porous structural body, etc., thinly with the material of viscoelasticity. As for the method of covering the permeable sheet with the thin material of viscoelasticity, the method of, for instance, (a) laminating the permeable sheet with thin sheet of viscoelasticity or (b) applying the material of viscoelasticity to the permeable sheet. As for the fibrous structural body, filter paper or nonwoven fabric of about 0.2-6mm thickness is used, and as for the porous structural body, glass wool or synthetic resin blowing, etc., of the same thickness is used. As for the thin material of viscoelasticity, rubber such as silicone rubber or natural rubber, or soft synthetic resin of vinyl chloride, etc., of about 0.1-1mm thickness is used, but the former is preferably used.
Patent JP-2000319291-A (JP)
Title: Alkylperoxo mononuclear iron (iii) complex using pyridylamine tripodal ligand
Inventor: MASUDA HIDEKI
IPC: C07D213/89
Filed: 1999-05-10
Abstract: PROBLEM TO BE SOLVED: To provide a stable alkylperoxo complex and the application of the complex to a catalytic oxidation reaction. SOLUTION: An alkylperoxo mononuclear iron (III) complex having a pyridylamine tripodal ligand which forms the formula [Fe111 (bppa) (OOR)]2+ [bppa is bis(6-pivalamido-2-pyridylmethyl) (2-pyridylmethyl)amine; R is an alkyl-or arylsubstituted alkyl]. Examples of a compound of a counter ion A which compensates a positive charge include a compound having a minus charge of a -1 valent ion such as perchlorate ion, chlorate ion, chloride ion, acetate ion or a nitrate ion, or a -2 valent ion such as a sulfate ion.
Patent JP-S5653991-A (JP)
Title: Semisubmerged twin-hull ship equipped with apparatus for reducing swing motion
Inventor: KAWAGUCHI NOBORU
IPC: B63B39/06
Filed: 1979-10-06
Abstract: PURPOSE: To obtain the swing motion reducing effect while stopping and prevent the increase of the hull resistance while cruising by an arrangement wherein a container capable of being expanded or contracted through the charging or exhaustion of gas is provided between a pair of supporting hulls and thus provided container is expanded while stopping and contracted while cruising.  
     CONSTITUTION: A swing motion reducing means 6 is provided between a pair of supporting hulls 3 of a twin-hull ship and below and upper hull 2. The swing motion reducing means 6 has an air tight structure like a container. A top wall 6a and a bottom wall 6b of the means 6 are formed by rigid structual materials such as steel plates and peripheral walls 6c are formed by expansion materials such as flexible rubber plates. While normal cruising the swing motion reducing means 6 is contracted and housed. On the other hand, while stopping or cruising at very low speed compressed gas is charged into the swing motion reducing means 6 through a gas charging and exhaustion pipe 8 to expand the means 6 and then form a float, thereby reducing the motion of the twin-hull ship in the vertical direction. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S5254878-A (JP)
Title: Electronic adjuster
Inventor: HIRAYAMA TAKESHI
IPC: G05B11/42
Filed: 1975-10-29
Abstract: PURPOSE: Taking into consideration the fact that integral and differential times are proportional to a regulation voltage, a stable adjustment can be performed even if the integral and differential times may be great. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S6024951-A (JP)
Inventor: RONARUDO MAABUIN MEESON
IPC: B41F15/12
Filed: 1984-06-25
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-H05299410-A (JP)
Title: Etching mask pattern of dimension measuring cell
Inventor: TAKAGI MITSUHARU
IPC: H01L21/306
Filed: 1992-04-21
Abstract: PURPOSE:To make small the influences of microloading effects at etching and enhance monitor precision in a dimension measuring cell which is formed by etching by a method wherein an arrangement and member in etching patterns of the dimension measuring cell are not changed. CONSTITUTION:An etching mask pattern 11 of a dimension measuring cell is composed of line patterns 12 having three lines or more which are formed on a semiconductor substrate 1 and each of the line patterns 12 is arranged in parallel and in a row. Or, holes arranged as three rows three columns are provided in the mask patterns for etching which are formed on the semiconductor substrate 1. Or, etching mask patterns of two kinds of dimension measuring cell are continuously formed on the semiconductor substrate 1.
Patent JP-H08305630-A (JP)
Title: Digital signal processor
Inventor: KOBAYASHI SHINJI
IPC: G06F12/06
Filed: 1995-04-28
Abstract: PURPOSE: To provide a digital signal processor which can fast operate at low cost. CONSTITUTION: The digital signal processor consists of an address generation means 17 which transmits the addresses after increment of them, the 1st and 2nd latch circuits 31 and 32 which latch the addresses supplied from the means 17 with the timings alternate to each other, the 1st and 2nd memories 33 and 34 where the information signals are readably written in the addresses latched by both circuits 31 and 32, and an arithmetic means which applies the arithmetic operations to the information signals that are read out of both memories 33 and 34 with the timings alternate to each other.
Patent JP-H06337530-A (JP)
Title: Electrophotoreceptor
Inventor: IKEDA AKIHIKO
IPC: G03G5/08
Filed: 1993-05-31
Abstract: PURPOSE:To provide an electrophotoreceptor having enhanced electrification ability, improved photosensitivity and high contrast potential and improved in memory afterimage phenomenon. CONSTITUTION:A 1st photoconductive layer 7 of amorphous silicon having 50-80mum thickness and a 2nd photoconductive layer 8 of amorphous silicon having 0.1-10mum thickness are successively laminated on an electric conductive substrate 5. The amt. of dangling bonds of the silicon forming the 2nd layer 8 has been reduced to 30-80% of that of the silicon forming the 1st, layer 7 and a group IIIa element is incorporated into the 2nd layer 8 so that the amt. of the element is gradually reduced from the substrate 5 side in the thickness direction. The objective electrophotoreceptor is obtd.
Patent JP-S5753559-A (JP)
Title: Resin composition containing polyamideimide resin
Inventor: OSADA HIROICHI
IPC: C08G73/00
Filed: 1980-09-17
Abstract: PURPOSE: The titled composition that contains an aromatic diisocyanate, a lactam, a polycarboxylic acid containing anhydride groups and a compound containing caroxylic groups, thus being suitably used for heat-resistant coating or wire varnish, because of is increased heat resistance and dissolving in a cresol solvent.  
     CONSTITUTION: An aromatic diisocyanate, a lactam, a polycarboxylic acid containing anhydride groups, preferably trimelltic anhydride, and a compound of (X) 2 -R-(Y) n  (X is carboxyl; Y is carboxyl, hydroxyl, amino; R is aromatic, aliphatic, alicyclic or heterocyclic residue; n is 1 or more) are made to react in a cresol solvent where the amount of the lactam is 20W90 equivalent % based on the total isocyanate groups and that of the compound of the formula is 1W20 equivalent% based on the total carboxylic and anhydride groups, thsus producing the objective polyamideimide resin soluble in a cresol solvent. The resultant composition is diluted with a cresol solvent to 20W40wt% resin concentration for varnish. 
     COPYRIGHT: (C)1982,JPO&Japio