baber/WOPTO huggingface dataset:
Patent JP-S58115037-A (JP)
Title: Preparation of preform of optical fiber conserving polarization plane
Inventor: TOKUNAGA TOSHIHIDE
IPC: C03B37/018
Filed: 1981-12-28
Abstract: PURPOSE:To obtain a preform of polarization plane-conserving optical fiber having excellent characteristics, easily, by applying a low-melting glass layer to the inner surface of a quartz glass pipe, heating the pipe and forming to an elliptic cross-section, inserting a core rod to the center of the pipe, and integrating the rod with the pipe. CONSTITUTION:A quartz glass pipe 4 having a borosilicate glass layer 5 at the inner surface is attached to a vertical glass lathe 7. The atmosphere in the quartz glass pipe 4 in purged with high purity oxygen gas, and the pipe is flattned by heating with a oxyhydrogen burner 9 from one end while preventing the contamination with impurities. The pipe is turned 180 deg., and the operation is repeated to make the whole quartz glass pipe 4 elliptic. A quartz core rod 6 prepared by VAD process, etc. is inserted into the elliptic pipe, the inside of the pipe is evacuated, and the pipe is heated under rotation with an oxyhydrogen burner 9 to obtain a preform 10 of a polarization plane-conserving optical fiber, having an elliptic core and circular clad, and suitable for the preparation of optical fiber having excellent polarization plane characteristics.
Patent JP-S6272278-A (JP)
Title: Synchronizing signal separating device
Inventor: OI KAZUNARI
IPC: H04N5/08
Filed: 1985-09-26
Abstract: PURPOSE:To separate a synchronizing signal without always causing phase shift by transiting a slice voltage accordingly when a DC level of a composite video signal is fluctuated. CONSTITUTION:The DC level of a composite video signal is clamped to be constant in a clamp circuit 33. A clamp circuit 37 clamps the composite video signal only when a pulse signal being an output of a monostable multivibrator 36 exists. A comparator 38 outputs a high level signal only when an output voltage of a level shift circuit 42 is higher than the level of an output signal of the clamp circuit 37. Thus, a pulse signal is outputted during the synchroniz ing signal period and it is used as a synchronizing signal and led to an output terminal 43. Thus, since the synchronizing signal portion is sliced nearly at the same position, no phase shift is caused in the synchronizing signal being an output of the comparator circuit 38.
Patent JP-H0940026-A (JP)
Title: Drip absorbing sheet with absorbing groove
Inventor: WATABE KAZUJI
IPC: B32B29/00
Filed: 1995-07-26
Abstract: PROBLEM TO BE SOLVED: To provide a hygienic drip absorbing sheet with absorbing grooves wherein drips eluting from perishable food or cooked food can be absorbed in a short time, the absorbed drips can be hidden, and no trace of the drips is left on an upper face sheet. SOLUTION: A drip absorbing sheet comprises a two-layered structure wherein on an upper face of an absorbing sheet having water absorbency, an opaque sheet 12 thinner than the above absorbing sheet not having water absorbency is joined, and numerous cuts 20 for absorbing drips are provided on the two- layered structure sheet. By die-cutting the two-layered structure sheet by a single-edged slit blade with a blade angle of 25 degrees or more and less than 90 degrees, a lengthwise end of the cuts of the opaque sheet 12 not having water absorbency on the upper face remains approximately parallel to the opaque sheet face, while the other end is pushed down to form a stepped opening at the upper end of the drip absorbing cuts 20 and also to form a gutter-like absorbing groove 26 connected to the opening on a lengthwise side of the stepped opening.
Patent JP-H0661576-A (JP)
Title: Semiconductor laser
Inventor: ISHII HIROYUKI
IPC: H01S5/042
Filed: 1992-08-07
Abstract: PURPOSE:To enable wavelength sweep over a wide band by providing a Y- branched reflection device to both sides of a straight line waveguide. CONSTITUTION:Since Y-branched waveguides 102, 103 are provided to both sides of a linear active waveguide 101, rate of light fed back to the linear active waveguide 101 is obtained by multiplying reflectance of two Y-branched reflectors 102, 103, and single mode oscillation is realized in the neighborhood of optical frequency wherein reflection peaks of the two Y-branched reflectors 102, 103 coincide. When a current is made to flow independently to electrodes 7, 8, 9, 10 provided to two branched waveguides of the Y-branched reflectors 102, 103 to change equivalent refraction factor of the waveguide, optical path length difference DELTAL changes and characteristic of reflectance changes. Therefore, a semiconductor laser which enables wide band length sweep ranging over a gain band width of a semiconductor active waveguide can be acquired by making lengths L1, L2 of two branched waveguides of the Y-branched reflectors 102, 103 long enough, and by changing optical path length difference DELTAL largely by less refraction factor change.
Patent JP-S59103570-A (JP)
Title: Control system for dc/dc converter for electric railcar
Inventor: OOHORI MASARU
IPC: B60L1/00
Filed: 1982-12-01
Abstract: PURPOSE:To reduce the ripple current by providing a phase difference in the ON and OFF operations of a semiconductor switch of a plurality of switching regulators connected in series at the input side and connected in parallel at the output side. CONSTITUTION:The input sides of four sets of switching regulator circuits 20, 30, 40, 50 are connected in series, and the output sides are connected in parallel for all four sets. The circuits 20, 30, 40, 50 are divided into two groups of two sets of the switching regulator circuits 20, 30 and 40, 50, and ON and OFF are controlled by the phase difference of 180 deg. at the transistor switch in the switching regulator circuits of the respective group.
Patent JP-S6191842-A (JP)
Title: Liquid cooling type projection type picture tube
Inventor: IGARASHI TSUNEHISA
IPC: H01J29/00
Filed: 1984-10-11
Abstract: PURPOSE:To prevent entering of foreign matter into coolant by engaging a projection unit of a collar with a bracket by constituting a plug for injection hole without screw portion by an inserting unit and the collar projected larger than the inserting unit on an outer peripheral portion. CONSTITUTION:An injection hole 10a of a metal bracket 10 is made by a transparent hole without screw portion, and a stopper unit 10b is formed on an outer side of the bracket 10. A plug 11 for sealing hole 11a and a collar unit 11c larger than the unit 11a and having a projection 11b a portion of which is projecting to the outer peripheral direction to be engaged with the stopper unit 10b. When sealing the hole 10a with the plug 11, an O ring 12 is fit to the unit 11a so that the unit 11a is inserted in the hole 10a in the posture where the unit 11b is not contacted to the unit 10b, and the plug 11 is turned to engage the unit 11b with the unit 10b. Thus, as the screw portion is not formed in the hole 10a, cutting layer of the screw portion can be eliminated and foreign matter is prevented from entering into coolant.
Patent JP-H1054997-A (JP)
Title: Active matrix liquid crystal display device, its manufacture and device used for its manufacture
Inventor: KODAMA SATOSHI
IPC: G02F1/136
Filed: 1996-08-09
Abstract: PROBLEM TO BE SOLVED: To provide an active matrix liquid crystal display device, its manufacture and a device used for its manufacture formed while directly answering to a change in impurity concentration and the change in an irradiation distribution caused by that an irradiation state is changed every hour when a thin film transistor incorporated in the active matrix liquid crystal display device is formed on a large-sized glass substrate. SOLUTION: The formation of the thin film transistor in the active matrix liquid crystal display device is constituted so that by controlling a beam current based on the impurity concentration data measured beforehand by a mass spectrometer 16 without that an ion beam taken out from an ion source 9 is mass separated and the beam distribution data measured beforehand by a multi-point beam ammeter 17, a total beam irradiation amount is controlled, and a specimen in a processing room is irradiated by the ion beam.
Patent JP-H0946081-A (JP)
Title: Electronic apparatus case
Inventor: TATSUZUKI KAZUMI
IPC: H05K9/00
Filed: 1995-07-28
Abstract: PROBLEM TO BE SOLVED: To enable application of the protruding cylindrical parts for case conductor connection to the case that electronic circuit elements are shielded and the case that the electronic elements are not shielded, by forming the cylindrical parts on the base part of a case main body. SOLUTION: The front face of a case main body 32 is largely opened. On the bottom wall as the base part, three cylindrical parts 42 for conductor connection are arranged in parallel in the horizontal direction. In order that a plug connector 58 may be inserted into the cylindrical part 42 even in the oblique state, the inner diameter of the cylindrical part 42 of the case main body 32 is made larger than the external shape of the plug connector 58. Hence a gap is formed between the plug connector 58 and the cylindrical part 42, in the state that a shielding case S is accommodated in the case main body 32. A coaxial cable is connected with a circuit board by inserting the coaxial cable into the cylindrical part 42 and soldering the tip of the coaxial cable to the circuit board. Thereby a shield cable can be retained with a shield cable retaining part.
Patent JP-2001042523-A (JP)
Title: Positive type photosensitive resin composition and semiconductor device using same
Inventor: MAKABE HIROAKI
IPC: G03F7/022
Filed: 1999-07-27
Abstract: PROBLEM TO BE SOLVED: To obtain a pattern with high sensitivity and a high rate of a residual film by using specified amounts of a specified polyamide, a sensitizer and a specified compound. SOLUTION: The positive type photosensitive resin composition comprises 100 pts.wt. polyamide of formula I, 1-50 pts.wt. sensitizer and 0.5-10 pts.wt. compound of formula II. In the formula I, X is a tetravalent cyclic compound group, Y is a divalent cyclic compound group, Z is a compound of formula III, E is an aliphatic or cyclic compound group having at least one alkenyl or alkynyl group, (a) and (b) each shows molar fraction and (n) is 2-500. In the formula II, R5 and R6 may be the same or different and are each alkyl, alkoxy or the like and R7 is H, alkyl, acyl or halogen. In the formula III, R1 and R2 are each a divalent organic group and R3 and R4 are each a monovalent organic group.
Patent JP-S59101194-A (JP)
Inventor: SAWAZAKI KAZUYUKI
IPC: D06F17/10
Filed: 1982-11-30
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-H0532805-A (JP)
Title: Production of prepreg and copper-clad laminate
Inventor: OCHIAI TAKASHI
IPC: C08J5/24
Filed: 1991-07-29
Abstract: PURPOSE:To provide a prepreg in which the thermosetting resin is stably converted into a B-stage resin and is satisfactorily infiltrated into the base; and to provide a copper-clad laminate entirely free from low-spots and not lowered in productivity by adding an imidazole cure accelerator difficultly volatilizable under the conditions for forming a prepreg. CONSTITUTION:A process for producing a prepreg comprising coating and impregnating bases with a thermosetting resin varnish containing an imidazole compound in which the number of carbon atoms of each of the side chains at the positions 2 and 4 of an imidazole ring is 5-15 as a cure accelerator and drying the bases; and a copper-clad laminate prepared by integrally molding these prepregs under applied heat and pressure.
Patent JP-S6270829-A (JP)
Title: Original pressing plate
Inventor: TAKAHASHI YASUSHI
IPC: G03G15/00
Filed: 1985-09-24
Abstract: PURPOSE:To adhere tightly and precisely an original to an original placing table, by laminating an original pressing sheet, a buffer member layer and an casing sheet member to which tensile force is to be applied successively and constituting the casing sheet of one end pivotally fixed to the original placing table and one end having a fixing member to be attached/detached to/from the original placing table. CONSTITUTION:The fixing member 43 to be attached/detached to/from a fixing member 44 is fitted to one end of the thin casing sheet 41 and the fixing member 44 is fitted to a holding guide 25. For instance, a magic tape is used for the fixing members 43, 44. When the fixing members 43, 44 are locked by pressing the thin casing sheet 41 downward while applying tensile force to the sheet 41 in the arrow B direction, the fixing member 43 presses the sheet 41 obliquely downward. Consequently, the buffer member 27 is compressed, an original press sheet 28 is pressed against the original 9 and the original 9 is tightly adhered to a platen glass 10.
Patent JP-H0861577-A (JP)
Title: Hose coupling device
Inventor: NAGAI SHOZO
IPC: F16L33/20
Filed: 1994-08-12
Abstract: PURPOSE: To provide a low-cost hose coupling device which allows easy fitting of hoses to each other by connecting two or more coupling members with each other by a resilient connecting mechanism, wherein each coupling member has an arcuate surface in plane contact with the inside surface of hose to be coupled. CONSTITUTION: To couple together long stretching hoses 24, 25 for use in draining etc., coupling members 20, 20 having an arcuate cross-section positioned opposingly are pressed against the resilient forces of compression springs 22, 22 and approached to each other. The hose 24 is put as covering along arcuate surfaces 20A, 20A, and the end of the hose 24 is joined with the coupling members 20, 20, and the end of the other hose 24 is contracted diametrically together with the members 20, 20. In this condition, the hose 25 is put as covering from the other ends of members 20, 20 in such an arrangement that the end of the hose 25 is laid on the end of the hose 24. The surfaces 20A, 20A are put in plane contact with the end part inside surfaces of the hoses 24, 25 by disengaging the pressure of the members 20, 20, and the coupling of the hoses 24, 25 with each other is completed.
Patent JP-S6368601-A (JP)
Title: Production of vinyl polymer
Inventor: KUMAGAI YUGO
IPC: C08F2/20
Filed: 1986-09-09
Abstract: PURPOSE:To produce a vinyl polymer in good yields, by suspension-polymerizing a specified vinyl monomer in water containing PVA as a dispersant. CONSTITUTION:A vinyl monomer containing a hydroxyl group-containing vinyl monomer of formula I, II or the like and/or an imide-group-containing vinyl monomer of formula III, IV or the like is dispersed in water containing 0.01-0.2wt%, based on the total vinyl monomer, PVA as a dispersant, and the polymerization of the obtained dispersion is started in the presence of a polymerization initiator (e.g. 2,2'-azobisisobutyronitrile). When the temperature reaches a temperature (>=60 deg.C) at which the half-line of the polymerization initiator is below 40hr, PVA is added to the reaction system so that it may amount to 0.2wt% or above, based on the total vinyl monomer, within 1hr and the reaction mixture is suspension-polymerized.
Patent JP-2000024319-A (JP)
Title: Game system and information recorded medium
Inventor: NAKATSUKA TAKESHI
IPC: A63F13/46
Filed: 1998-07-10
Abstract: PROBLEM TO BE SOLVED: To achieve a higher degree of interest of a player in a game and a promotion of a player's continuation of playing game. SOLUTION: All time entry system is employed to accept the entry of a player at any time. A game space is composed b a series of games 1-M and the results of the game by each player are computed to terminate the player's playing of the game at any time when the residual endurance and residual playing time are down to zero. In the shift of a game 1 to a game 2, the final results are displayed as determined according to the results of games by individual players. The final results include team achievements, personal achievements, contributions to teams and personal titles. An entry player in the termination of the game is entitled to play the subsequent game. But in the shift of the game 1 to the game 2, further playing in the game 2 by the player with the results of the game turned out inferior is not permitted.  A handicap is given to a later participating player based on the frequency of success in fight by an early participating player. Remote communication is preferable.
Patent JP-S59104738-A (JP)
Title: Recorder of program searching signal
Inventor: NAMIKI KOUSHIN
IPC: G11B27/30
Filed: 1982-12-02
Abstract: PURPOSE:To avoid the generation of the band-shaped moire on a screen by performing the AC bias recording to a program searching signal with no switch by means of a relay, etc. and at the same time selecting the waveform and recording level to prevent a jump into a reproduced carrier chrominance signal. CONSTITUTION:With start of recording of video signals, a control signal which is set at a low level for one second is supplied to an input terminal 11 to turn on a diode D5 for one second. A high-frequency signal is supplied to the other end of a full-width erasion head FE through a transformer 9, and therefore the high-frequency signal is superposed on a program searching signal of a sine wave form of 30Hz as a bias signal for recording. A magnetic tape is reproduced by a rotary head in a section where the program searching signal and the video signal are superposed on each other. In such a case, no effect is substantially given to a low-band conversion carrier chrominance signal since the program searching signal is recorded with superposition of erasion currents of 70kHz as a bias signal.
Patent JP-2000046651-A (JP)
Title: Wire appearance inspection device
Inventor: HAMADA NORITSUGU
IPC: G01N21/94
Filed: 1998-07-28
Abstract: PROBLEM TO BE SOLVED: To provide a light source adjustment means capable of obtaining a stable image signal via a means for uniformly lighting the surface of a three- dimensional inspection object and under the maintenance of an initially set gate level. SOLUTION: This device has a light source 3 controlled by lightness preliminarily stored in an arithmetic operation device 4 and a plurality of wires 102 as inspection objects on an inspection stage 1. In addition, the device has light guide 5 for guiding the light source 3 to a position above the inspection objects as downward lighting 3a, and a hollow cylindrical frosted glass 6.  In this case, the color image signals of the wires 102 photographed with a camera 2 positioned above the hollow light guide 5 are compared with signals obtainable from conversion into hue, chroma and lightness in the arithmetic operation device 4 for the every preliminarily stored color of the wires 102, and picture elements within a preset threshold value are extracted for making judgement about the sequence of covering color and foreign matter in a cover removal part, and measuring the array distance of the cover removal part from a reference point, thereby making judgement about acceptance and non-acceptance.
Patent JP-S6458453-A (JP)
Title: Damper for absorbing vibration
Inventor: SAKAMOTO MASAYUKI
IPC: B23Q11/00
Filed: 1987-08-25
Abstract: PURPOSE:To prevent the vibration of a cut workpiece by a simple structure by constituting a damper body from elastic members and reducing the diameter at the both edge parts for the diameter at a center part, in a damper for absorbing vibration which is used in the mirror-surface cutting work. CONSTITUTION:As for a damper 5 consisting of elastic members is inserted into the inside surface of a work member 2 as the electric conductive basic member which is made of aluminum, etc. and constitutes a recording medium. In this damper 5, the dimension B at the both edge parts is made smaller than the dimension A of a center part, and the dimension A is set in the relation A<E for the inside diameter E of the work member 2, and the rectilinear width dimension C is set to 25-40% of the dimension D. The damper 5 is inserted into the work member 2 and held onto a cutting device body, and cutting is carried out through the high speed revolution. Therefore, the degree of roundness is hardly varied, and since the damper is closely attached onto the inner peripheral surface, the resistance on cutting is increased, and the amplitude of vibration is reduced, and the sufficient vibrationproof effect can be obtained, and a desired surface roughness can be easily obtained.
Patent JP-H0377699-A (JP)
Title: Treatment of waste water
Inventor: MORO MASASHI
IPC: C02F1/44
Filed: 1989-08-18
Abstract: PURPOSE:To thicken the liquid in a tank, as necessary, and to attain the direct dehydration treatment of this liquid without passing the liquid to a sludge separating tank and a sludge thickening and storing tank by installing a membrane separator in a reaerating tank. CONSTITUTION:Raw water 2 is supplied to a nitrifying and denitrifying tank 1. A nitrifying tank 6, a denitrifying tank 7 and a reaerating tank 8 are connected in this order to the nitrifying and denitrifying tank 1. The membrane separator 31 is installed in the reaerating tank 8. Separated liquid 32 enters a separated liquid storing tank 34. A part of the sludge is returned as circulated sludge 35 and the rest enters, as excess sludge 36, a flocculating and intimate mixing tank 18. This sludge is further separated to dehydrated cake 40 and separated liquid 41 in a dehydrating machine 39. The solid-liquid sepn. is executed in the membrane separator 31 in such a manner and, therefore, there is no need for a sludge separating tank and the SS concn. of the separated liquid 32 is decreased to substantially zero. Since the sludge is directly dehydrated, there is no need for the sludge storing tank. The ammonia concn. in the dehydrated and separated liquid 41 is lowered and the quality of the effluent water is improved.
Patent JP-H0376160-A (JP)
Title: Semiconductor integrated circuit
Inventor: HORIGOME OSAMU
IPC: H01L21/822
Filed: 1989-08-18
Abstract: PURPOSE:To improve breakdown strength of a dielectric layer by providing a reverse conductivity type diffused layer provided on a semiconductor substrate in contact with a dielectric layer at the outer upper end of a groove, and an active element provided on the surface of the substrate including the diffused layer. CONSTITUTION:A thermal oxide film 2 is formed on the surface of a substrate 1, a silicon nitride film 3 is then deposited thereon, a first opening is formed, and a second opening is formed inside. Then, grooves 5 are formed in the film 2 and the substrate 1, ion implanted to form a HiC structure 6, a first N-type diffused layer 7 is formed on the surface of the substrate, source.drain regions are provided, a silicon oxide film 8 is formed on the inner surface of the groove 5, a silicon nitride film 9 is deposited on the surface, oxidized, a dielectric layer is formed, a polycrystalline silicon layer 10 is deposited on the surface, and phosphorus is diffused. Then, after a buried polycrystalline silicon layer 11 is formed, a deeper groove 22 than the structure 6 is formed, the layer 10 is divided, an insulating film 12 is provided, and divided capacitors are formed in the groove 5. As a result, the radius of the groove can be increased, and the breakdown strength of the dielectric layer can be improved.