baber/WOPTO huggingface dataset:
Patent JP-H04142506-A (JP)
Title: Endoscope lighting optical system
Inventor: TANAKA KO
IPC: G02B13/02
Filed: 1990-10-04
Abstract: PURPOSE:To make a visual field bright up to its periphery by providing an aspherical surface in an optical system and forming the aspherical surface in such a shape that there are more parts where the angle between its tangent and a light source end surface such as a light guide end surface is large. CONSTITUTION:A spherical lens 2 which has an aspherical surface on the side of a light guide is arranged in front of the projection end surface of the light guide 1 and this aspherical surface satisfies S<=0.12S0. Here, S0 is the area of the light source and S is the area of the light at the part where the angle thetabetween the tangent to the aspherical surface and the end surface of the light source is <=15 deg..
Patent JP-H1089477-A (JP)
Title: Thin width three-piece oil ring
Inventor: ISHIHARA KATSUSHI
IPC: F02F5/00
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To suppress the amount of oil cunsumption by smoothly guiding the oil scraped down to an oil drain hole. SOLUTION: A rectangular oil through hole 11 piercing in the radial direction is formed in an inner circumferential side ring projection 4 in connection to the radial inner end of an outer circumferential side slit 6 made up in an outer circumferential side ring projection 3 of a spacer expander 2. An oil passage is augmented by this oil through hole, and then the slit 6 and the oil through hole 11 both are turned to the rectilinear oil passage, whereby the oil scraped down by two side rails 10 and 10' is smoothly guided to an inner circumferential side of the expander 2.
Patent JP-H09107282-A (JP)
Title: Output buffer circuit
Inventor: TANEI YOSHIMASA
IPC: H03K19/003
Filed: 1995-10-13
Abstract: PROBLEM TO BE SOLVED: To suppress the occurrence of ringing in the output waveform by changing a converted current in a prescribed direction at the time of the change of the output voltage of an output terminal in the prescribed direction and constituting a positive feedback loop to increase the change of the output voltage to be converted through a current conversion circuit. SOLUTION: When the input signal of an input terminal 101 is in the high level, an N-channel transistor TR 13 and a P-channel TR 22 are turned on, and an N-channel TR 23 is turned off. At this time, N-channel TRs 11 and 12 constitute a current mirror circuit. Thus, a P-channel TR 21 can make the drain current flow slightly. This drain current flows into an N-channel TR 11 as one of a current mirror pair of N-channel TRs, and its current value is increased, and it is transferred to an N-channel TR 12. As the result, pulling- down to the low level side of the potential of an output terminal 201 is started. Then, the current flowing into the current mirror is increased.
Patent JP-H03129009-A (JP)
Title: Foundation improving method
Inventor: SANO KUNIHIRO
IPC: E02D3/12
Filed: 1989-10-12
Abstract: PURPOSE:To obtain a uniformly solidified body by rotating a drilling rod incorporated with agitating blades and a casing incorporated with pulverizing blades, which are rotatably coupled with each other, in opposite directions so as to agitate and mix excavated soil and a solidifying material. CONSTITUTION:On the outside of a drilling rode 1 from which agitating blades 4 are projected above a drilling bit 3 at the forward end of the rod, a cylindrical casing 2 from which pulverizing blades 5 which are laid alternately with the agitating blades 4 is connected to the drilling rod 1, rotatably in opposite directions. Further, the agitating blades 4 and the pulverizing blades 5 are advanced in the foundation while they are rotated in the opposite directions. After drilling is performed by a predetermined depth, a solidifying material is discharged from the forward end of the drilling rod 1 while the rod 1 and the casing 2 are rotated in directions reverse to that during drilling, and accordingly, excavated sediment is further pulverized by the blades 4, 5 while the pulverized sediment and the solidifying material are agitated and mixed. With this arrangement, it is possible to obtain a uniform mixing condition.
Patent JP-H03126635-A (JP)
Title: Production of optical fiber
Inventor: MIKAMI MASATOSHI
IPC: C03B37/029
Filed: 1989-10-12
Abstract: PURPOSE:To practically eliminate an undrawn part by covering the upper end of an optical fiber preform projecting above a drawing furnace with an upper seal lid and a lower seal lid before drawing. CONSTITUTION:The upper end of an optical fiber preform 3 projecting above a drawing furnace 1 is covered with a cylindrical upper seal lid 16 having the inner diameter larger than the preform 3, having a lid part 16a having a port 16b for passing a supporting rod 14 for the preform 3 and discharging a gas and larger than the rod 14 and having the same length as that of the upper tapered part of the preform 3 in its axial direction or 10-50mm longer and a discoid lower seal lid 17 having an outer diameter smaller than the inner diameter of the lid 16, having a port 17a for passing the supporting rod and discharging a gas and a radial gas discharge port 17b around the port 17a. The preform 3 is introduced from an insertion port 10 into the drawing furnace 1 having a furnace casing 5 and drawn.
Patent JP-H08103428-A (JP)
Title: High-frequency coil for nuclear magnetic resonance system
Inventor: TAKAHASHI TETSUHIKO
IPC: A61B5/055
Filed: 1994-10-06
Abstract: PURPOSE: To improve the detecting sensitivity of an RF coil by flattening the shape of an annular conductive element and forming its major axis size, minor axis size and coil length to satisfy specific relation in an RF coil of multiple element resonator system. CONSTITUTION: A pair of flat annular conductive elements 3302 mounted on the terminal part of a prismatic body, plural linear conductive elements 3303 connected between the flat annular conductive elements 3302 and arranged nearly in parallel, and capacitive elements 3304 inserted to one or more conductive elements in series are provided in a high-frequency coil (RF coil) 33 for nuclear magnetic resonance system formed in flat hollow prismatic shape. The phase difference of high-frequency signals outputted from plural feed/reception ports 3307, 3308 coupled with a high-frequency circuit is set at nearly 90 deg.. Also, the ratio A/B of major axis size A to minor axis size B of the annular conductive element 3302 is set at a value between 1.3 to 2, and the ratio B/C of minor axis size B to coil length C at a value between 0.9 to 2.
Patent JP-H08111170-A (JP)
Title: Electron emitting electrode and light emitting panel using it
Inventor: NAKAMURA OSAMU
IPC: H01J11/42
Filed: 1994-10-06
Abstract: PURPOSE: To provide an electron emitting electrode which can be driven by low voltage electric power supply without causing hunting in a discharge waveform. CONSTITUTION: An electron emitting electrode is formed in such a structure that an La0.7 Sr0.3 MnO3 thin film 14 is formed on an Ni board 12 through an NiO film 13. In this case, the La0.7 -Sr0.3 MnO3 thin film 14 is composed of a material having a structure of the oxygen element defective nonstoichiometric ratio, but has an excellent electron emitting characteristic. Hunting can be prevented from being caused in a discharge waveform. Therefore, a light emitting panel using this electron emitting electrode can be prevented from exerting adverse influence of a noise on an image of a display device such as an LCD.
Patent JP-H0992588-A (JP)
Title: Single-crystal silicon substrate
Inventor: TANIGAWA AKIO
IPC: H01L21/322
Filed: 1995-09-21
Abstract: PROBLEM TO BE SOLVED: To restrain a single-crystal silicon substrate from separating out oxygen by a method wherein the composition ratio of isotopes Si<29> and Si<30> to Si<28> in a region of the single-crystal substrate where a device is to be formed is set deviating from that of natural Si by specific % or above, and each of Si<29> , Si<30> , and Si<28> is set lower than specific % in composition ratio. SOLUTION: The composition ratio of isotopes Si<29> and Si<30> to Si<28> in a region of a single-crystal substrate 1 where a device is to be formed is set deviating from that of natural Si by ±10% or above, and furthermore each of Si<28> , Si<29> , and Si<30> is set lower than 99% in composition ratio. Or, an Si epitaxial crystal layer 2 controlled in an isotope composition ratio as prescribed is formed on an Si substrate 3 which is not controlled in composition ratio. By this setup, oxygen separated out by a thermal treatment and thermal donors can be reduced.
Patent JP-S63119507-A (JP)
Title: Superconducting magnet
Inventor: NAMIKATA TOSHIO
IPC: H01F6/04
Filed: 1986-11-07
Abstract: PURPOSE:To reduce the consumption of the coolant by providing a radiating fin on the outer surface of a superconducting coil so as to substantially increase the surface area of the coil, thereby raising the rate of the energy consumption by dissipation. CONSTITUTION:A radiating fin 2 is helically wound around the outer periphery of a superconducting coil 1. The fin 2 may be rings attached at predetermined intervals in the direction of the axis of the coil. By thus providing a radiating fin to increase the dissipation amount of the Joule heat generated at the precooling or quenching time to the exterior, the burning or breaking of the coil 1 due to heat evolution can be prevented without making the coil size large or enhancing the ratio of a stabilizing material, thereby enabling a more stable operation of a superconducting magnet and the reduction of the coolant consumption at the precooling time.
Patent JP-S62129533-A (JP)
Title: Driving gear for throttle valve in internal combustion engine
Inventor: TANAKA SHINICHIRO
IPC: F02D11/10
Filed: 1985-11-28
Abstract: PURPOSE:To enhance control resolving power of a motor for a throttle valve in its small opening region, by driving the throttle valve by the motor through a set of variable speed ratio gears so that speed ratio of a motor output shaft to a throttle shaft is variably controlled. CONSTITUTION:A throttle shaft 14, integrally formed with a throttle valve 12, is supported to a throttle body 10, and said shaft 14 mounts to its one end a return spring 16 while to the other end side a step motor 18. A driving gear 22, being mounted to an output shaft 20 of the step motor 18, and a driven gear 24, being mounted to the above described shaft 14, are measured with each other. while each tear 22, 24 is formed as an eccentric gear, constituting variable speed ratio gears with a fixed center distance from the both gears 22, 24. In this way, high resolving power is obtained, for instance, in an idle speed control or the like of small opening of the throttle valve 12 by spreading an angular range of the motor output shaft 20 for a region of small opening of the throttle valve.
Patent JP-2001087215-A (JP)
Title: Endoscope
Inventor: OGAWA TAKASHI
IPC: A61B1/00
Filed: 1999-09-20
Abstract: PROBLEM TO BE SOLVED: To provide an endoscope capable of coping with the autoclave sterilization and preventing a check valve function from getting out of order when soaked in a disinfection liquid. SOLUTION: A communicating tube 31 with a vent mouthpiece 9 protrudes on a partition wall of a connector body 7 which forms a space 30 communicating with the inside of a soft inserting part of this endoscope water-tightly. A check valve element 34 is disposed at the base end of the communicating pipe 31, and an open/close valve element 35 to be set in the close condition when the endoscope is soaked in a disinfection liquid is disposed outside the check valve element 34 to prevent a failure of the check valve element 34.  In addition, in the negative pressure process of the autoclave sterilization, by attaching a releasing cap 8 to the vent mouthpiece 9 and rotating the cap 8, the open/close valve element 35 is moved to the upper part together with a pressing member 38 so that the open/close valve element 35 is made to function in the open condition and the check valve element 34 is made to function as a check valve. Therefore, as air in the inner space is emitted in the negative pressure process, damage to an outer tube of a curved part can be prevented.
Patent JP-H11166022-A (JP)
Title: Graft copolymer
Inventor: WUENSCH JOSEF DR
IPC: C08F8/00
Filed: 1998-09-21
Abstract: PROBLEM TO BE SOLVED: To produce a graft copolymer having a high stiffness, tensile strength, dimensional stability and toughness by a production method a carried out by using the graft copolymer produced by a free radical polymerization or an ion polymerization. SOLUTION: The graft copolymer is produced by (a) reacting a vinyl aromatic compound with a conjugated diene to provide a polymer A containing a C=C double bond, (b) hydroformylating the C=C double bond of the obtained polymer A in the presence of carbon monoxide, hydrogen and a hydroformylating catalyst to provide a polymer B, (c) isolating the partially or completely formylated polymer B, (d) subjecting the formyl groups of the polymer B to a C-C coupling reaction for taking vinyl aromatic units in to provide a polymer C and (e) reacting the polymer C with a vinyl aromatic compound in the presence of a metallocene catalyst composition.
Patent JP-H01110295-A (JP)
Title: Water pressure control unit detector
Inventor: ISHIYAMA TAKAO
IPC: G21C17/003
Filed: 1987-10-23
Abstract: PURPOSE:To reduce manday, time and cost of periodic inspection by providing a detector of sheet leakage at the outlet of a directional control valve body. CONSTITUTION:A directional control valve unit 19 composed of an inserting directional control valve 15, an inserting exhaust directional control valve 16, a drawing directional control valve 17 and a drawing exhaust directional control valve 18 and a control rod drive mechanism 2 are connected to a driving water line branched from the halfway between a flow control valve 5 and a pressure regulating valve 6 of a driving water regulating part. Detectors 27, 28, 29, 30 for detecting vibration by flow at the outlet of each directional control valves 15, 16, 17, 18 are set. Therefore, sheet leakage test of the directional control valves in the time of the periodic inspection can be performed without removing them from a directional control valve unit and sheet leakage can be detected by performing ON operation for the detectors of the directional control valves for operating before normal drive during the operation of a reactor.
Patent JP-H0986585-A (JP)
Title: Structure of restriction piece for storing case
Inventor: SAKURAI YASUTAKE
IPC: B65D85/575
Filed: 1995-09-20
Abstract: PROBLEM TO BE SOLVED: To provide a structure of a restriction piece for a storing case wherein the manufacturing cost is suppressed by simplifying the structure and there exists no need to make the vol. of the case espesially small. SOLUTION: This structure consists of a sheet-like piece 10 of restriction being integrally provided with a storing case 1 on the inner wall face 9 of the storing case 1 made of a synthetic resin through a hinge part and a hooking projection 8 projected on the storing case 1 and for hooking the piece 10 of restriction facing down toward the wall face 9 and the hooking projection 8 consists of a projection projected integrally on the inner face of the peripheral wall 9 the storing case 1.  In addition, at least on one of either the upper part side end of the projection or the upper part side end or the restriction 10 butting to this when faced down, either an inclined or curved guide face is provided so as to become gradually close to the piece of restriction facing downward and against it or the projection side, and on the lower part of the guide face, a recessed part 12 for hooking for restricting downward the piece 10 of restriction getting over the projection is formed.
Patent JP-2001088944-A (JP)
Title: Feeding device for chip-like shredding material
Inventor: SHIBATA YOSHIO
IPC: B01J4/00
Filed: 1999-09-21
Abstract: PROBLEM TO BE SOLVED: To efficiently prevent generation of a partial aggregate of secondary shredding waste in a long tank with an approximately U-shaped longitudinal section, namely a bridge body, to smoothly drop the secondary shredding waste into a screw rod and quantitatively feed to a solid fuel forming device. SOLUTION: This feeding device is composed of the long tank with the approximately U-shaped longitudinal section 1 and the screw rod 10 to quantitatively feed the secondary shredding waste, and the long tank 1 is provided with a screw projecting bearing part 3 projecting from one side of an approximately U-shaped bottom part of the long tank 1, a secondary shredding waste throw-in port 8 in a center of an upper surface of the long tank 1, and a feeding port 9 for the waste on a lower surface side of the screw projecting bearing part 3, and the screw rod 10 is provided with ranging from an inside bottom part of the long tank 1 to the screw projecting bearing part 3. In this case, a bridge baffle plate 20 and a bridge baffle bar 21 are erected in a middle of the inside of the long tank 1.
Patent JP-H02115107-A (JP)
Title: Antibiotic agent
Inventor: SAIHARA YASUHIRO
IPC: A01N65/00
Filed: 1988-10-22
Abstract: PURPOSE:To obtain antibiotic agent expectable of very wide range of use having excellent safety, sufficient antibiosis and wide antimicrobial spectrum against, e.g., microorganism by containing extract from clove as active ingredient. CONSTITUTION:Any extracting solvent, preferably organic solvent such as methanol, acetone, ethyl acetate or n-hexane is added to crushed or finely cut material of preferably flower bud of, e.g., clove and extraction is performed by conventional method preferably under heating at room temperature - 100 deg.C, then resultant extract is purified by preferably extracting again with non-polar organic solvent and fractionating to afford the extract of clove. Said extract is contained as active ingredient in the aimed antibiotic agent especially used for food or industrial material, etc., having excellent safety because natural and edible plant is used as raw material and having the above-mentioned effect, e.g., having strong antibiosis such as sterilization, insecticide, bacterium control, mold control or insect control.
Patent JP-H06314896-A (JP)
Title: Magnetic shield apparatus
Inventor: MATSUBA HIRONORI
IPC: A61B5/055
Filed: 1992-09-10
Abstract: PURPOSE:To provide an excellent quality of low magnetic field space by a shorter cylinder than in the case that only superconductive cylinder is used by arranging plate-form members made of two kinds of materials alternately in a direction along the cylinder axis inside an aperture of the cylinder in a device for magnetically shielding an inside part of the cylinder by using a superconductive cylinder. CONSTITUTION:A superconductive cylinder 3 is fabricated by foming a high-temperature superconductor on a surface of a metallic cylinder made of silver. The superconductive cylinder 3 is 3m long and its diameter is 1m. lamination panels 1, 2 composed of a ferromagnetic member and a superconductor are arranged on both ends of the cylinder 3 respectively. The lamination panel 1 is fabricated by laminating a ferromagnetic disc 1a made of Permalloy and a superconductive disc 1b fabricated by forming a bismuth 2212-phase high-temperature superconductor (Bi2Sr2Ca1Cu2O8) on a silver plate, alternately. The lamination panel 2 is fabricated by laminating alternately a ferromagnetic disc 2a and a superconductive disc 2b fabricated by forming a bismuth 2212-phase high-temperature superconductor on a silver plate. Thus, as an external magnetic field becomes weak at an aperture of the cylinder, a light and small-sized magnetic shield can be formed.
Patent JP-H04141444-A (JP)
Title: Ink jet recording apparatus
Inventor: TAKEMURA MAKOTO
IPC: B41J2/175
Filed: 1990-10-03
Abstract: PURPOSE:To reduce vibration and to prevent the generation of the contamination due to the absorption of ink even when an ink leak is generated by mounting the receiving part of the ink tank forming the ink supply source to a recording head and the ink absorbing body arranged to the lower part of the receiving part in a compressed state. CONSTITUTION:An ink absorbing body 911 is arranged to the lower part of an ink supply unit equipped with ink cartridges 901BK, 901C, 901M, 901Y. The ink absorbing body 911 has recovery force against external force such as pressing force and is interposed between the recessed part of the frame 913 constituting the supply unit and the bottom plate 2015 forming an arranging frame in a compressed state. By this constitution, even when an ink leak is generated from the ink cartridges 901, ink can be absorbed by the absorbing body 911. The vibration accompanied by the driving of a motor transmitted through the bottom plate 2015 can be absorbed by the absorbing body 911. By this method, the noise generated by the driving of the apparatus can be reduced.
Patent JP-H09108158-A (JP)
Title: Washing machine for kitchen
Inventor: KONDO MASAO
IPC: A47L15/00
Filed: 1995-10-16
Abstract: PROBLEM TO BE SOLVED: To obtain an installation state without feeling of obstruction and to eliminate the need of the time and labor of wiping even when water overflows. SOLUTION: A water tank 3 provided with a washing means is installed in the sink 2 of a sink cabinet 1 and used. Also, to put it concretely, the water tank 3 is installed by being hooked to the edge part of the sink 2 by flange parts 5 and 6 and is stably installed regardless of inclination towards a drain port at the bottom part of the sink 2. The washing means includes a means for generating air bubbles in the water inside the water tank 3, a means for jetting a stream including the air bubbles, a means using the rotation of a brush or a means using the synergistic action of the jetting of the stream including the air bubbles and the rotation of the brush.
Patent JP-H01109477-A (JP)
Title: Device for shaping wiring route
Inventor: KOYAMA NAOKAZU
IPC: G06F17/50
Filed: 1987-10-22
Abstract: PURPOSE:To automatically change a wiring route to a land alternate route and to improve the quality of a printed board wiring by equipping a wiring route adjacent land extracting means, a land alternate route generating means and a wiring route changing means. CONSTITUTION:A wiring route shaping mechanism 4 equips a wiring route adjacent land extracting means 11, a land alternate route generating means 12 and a wiring route changing means 13. In correspondence to the type of the extracted land, a route to alternate a trouble area, which is determined in advance, is generated and an alternate route to be redundant to the wiring route after the change is shaped. Then, the wiring route is determined. Thus, the manhour of a designer can be widely reduced and wiring performance can be improved.
Patent JP-H06117846-A (JP)
Title: Interatomic force microscope
Inventor: KITAMURA SHINICHI
IPC: G01B21/30
Filed: 1992-10-06
Abstract: PURPOSE:To eliminate the influence of noise caused by a thermal drift, etc., on an interatomic force microscope used for detecting the displacement of a cantilever by using an optical interference method. CONSTITUTION:The output signal of an oscillator 16 is inputted to a PZT 12 for Z-modulation through an amplifier 18 for adjusting displacement and vibrates a sample 2 in the Z-direction. The output signal of a photoelectric converter 6 is inputted to an LIA 17 synchronously to the output signal of the oscillator 16, compared with the output signal of the oscillator 16, and processed. Therefore, only the signal corresponding to the intensity (ISIG) of interference light equal to the displacement of a cantilever 3 is obtained from the LIA 17. The output signal of the LIA 17 is compared with a reference signal Ref at a comparator 18 and the compared result is fed back to the Z- driving section of a PZT scanner 1 after the result is amplified by means of an HV amplifier 20. Therefore, the surface position of the sample 2 is controlled so that the interatomic force corresponding to the reference voltage Ref can always become constant.