baber/WOPTO huggingface dataset:
Patent JP-S5630677-A (JP)
Title: Automatic luminance regulator
Inventor: NAGAHARA YOSHIHARU
IPC: G04G9/00
Filed: 1979-08-22
Abstract: PURPOSE: To vary the luminance of a display tube according to a ambient brightness with a simple construction by applying voltage between the collector and the emitter of a luminance reglating transistor to the base thereof after it is divided with a photo detector and a resistance.  
     CONSTITUTION: Transistors Q 1  and Q 2  for regulating luminance are connected in parallel between a filament F of a fluorescent display tube FL and one end of a smoothing capacitor C 1  of a DC power source obtained by rectifying the commertial power source. A transistor Q 3  switches on by a frequency of the commertial power source at a specified duty cycle to secure the minimum luminance of the fluorescent display tube FL. A voltage obtained dividing the voltage between the collector and the emitter of the transistor Q 1  with a photo detector R 3  and a resistance R 4  is applied to the base of the tansistor to vary the level of energization of the transistor Q 1  whereby the luminance of the fluorescent display tube is automatically changed according to the ambient brightness. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S60250205-A (JP)
Title: Measurement of pipe wall thickness
Inventor: NAOE MASAHISA
IPC: G01B17/02
Filed: 1984-05-25
Abstract: PURPOSE:To enable calculation of wall thickness of a pipe material, by maintaining radioactive ray source and detector in the specified position relation misaligned with a straight line passing the center of a pipe material and measuring, on a mutually overlapped plurality of points along the periphery, the transmitted dose. CONSTITUTION:By selecting a radioactive ray source 10 from gamma- and X-ray sources and a detector 12 from proportional counter, scintillator, etc. depending upon specification, etc., of the pipe material 14, position of the source 10 is set near the outside periphery of the pipe 14. Further, the detector 12 is so positioned that, a line connecting the pipe 14 center O and a line connecting the source 10 and the detector 12 are positioned through an angle approximately of 1/4N times (N: odd number larger than 3) of 360 deg.C, namely alpha/4. Further, the pipe periphery is rotated as a whole around the pipe 14 center O and a radioactive ray is emitted at every angle alpha in N measuring points and radioactive cencentrations are detected in the mutually overlapped same numbers of detecting points with the aforesaid measuring points.
Patent JP-H10299697-A (JP)
Title: Connecting structure between blower and duct
Inventor: KAMATA MASASHI
IPC: F04D29/44
Filed: 1997-04-24
Abstract: PROBLEM TO BE SOLVED: To reduce a loss due to abrupt enlargement in a connection part between a blower and a duct. SOLUTION: A connection structure connects the blowing port 13 of a centrifugal blower 1 in which a vane 12 is arranged in a casing 11 and an inlet port 21 provided with a first duct wall 2a and a second duct wall 2b opposed to each other through an enlargement flow path 3 which has a rectangular sectional flow path provided with a first wall surface 3a and a second wall surface 3b corresponding to a tongue part side wall surface 11a and an anti-tongue part side wall surface 11b and directed to a flow path outlet 3d.  Also the second wall surface 3b of the enlargement flow path 3 is directed from the end part on the flow path inlet 3c side to the end part on the flow path outlet 3d side, and inclined from the extension of the anti-tongue part side wall surface 11b toward the tongue part side wall surface 11a, and connected to the end part of the anti-tongue part side wall surface 11b on the flow path inlet 3c side of the second wall surface 3b and the end part of the second duct wall 2b on the flow outlet 3d side.
Patent JP-H06277370-A (JP)
Title: Non-powered shaver
Inventor: SHIRAI TOSHIYUKI
IPC: B26B21/34
Filed: 1993-03-29
Abstract: PURPOSE:To realize comfortableness in usage similar to that of an electric shaver, etc., for a non-powered shaver. CONSTITUTION:An outer blade 11 and an inner blade 16 are set rotatable, and a speed change mechanism 24 is fitted between both. The outer blade 11 is rotated by moving a shaver to skin, and this rotation is changed by the speed change mechanism 24 to rotate the inner blade 16 in the opposite direction to that of the outer blade, or at a different speed from that of the outer blade.
Patent JP-H04334806-A (JP)
Title: Paste for inner electrode and laminate ceramic capacitor using same
Inventor: HORIBE YASUTAKA
IPC: H01G4/12
Filed: 1991-05-13
Abstract: PURPOSE:To provide a paste for inner electrode which can suppress the generation of a peeling phenomenon between a dielectric layer and an electrode layer, that is, a delamination, even though the dielectric layer is thin, and the number of laminate layers is many, in a laminate porcelain capacitor used as an electronic part of a microminiature, thin, and lightweight type electronic apparatus. CONSTITUTION:In a paste for inner electrode, palladium particles 11, acicular titanium oxide particles 13, an organic binder 12, and an organic solvent are included as the main components. As a result, by the function of the acicular titanium oxide particles 13, the densest filling structure of palladium particles 11 is not formed, and thereby, the expansion and the contraction following the oxidation and the reduction of the palladium by the heating can be absorbed inside an inner electrode 10, and the generation of a crack or a delamination of a dielectric layer can be avoided.
Patent JP-S62265119-A (JP)
Title: Production of fine powder of niobium double oxide
Inventor: OZAKI YOSHIHARU
IPC: C01G33/00
Filed: 1986-05-10
Abstract: PURPOSE:To produce the fine powder of high-purity Nb double oxide having required composition by hydrolyzing the mixture of both bivalent metallic alkoxide contg. Pb and Nb alkoxide and calcinating the product. CONSTITUTION:Both bivalent metallic alkoxide contg. at least Pb and Nb alkoxide are mixed by using an organic solvent such as benzene. Decarbonated distilled water is added to this mixed alkoxide and this mixture is hydrolyzed at the temp. within the range of about 0-100 deg.C. After the produced powdery precipitate is separated and dried, it is calcinated. By this method, the fine powder of high-purity fine granular Nb double oxide can be produced without performing a burring process. Further, if necessary, Ba alkoxide or Sr alkoxide is blended to Pb alkoxide of the above-mentioned bivalent metallic alkoxide.
Patent JP-H09292515-A (JP)
Title: Color filter and its production
Inventor: NIWA KATSUHIRO
IPC: G02B5/00
Filed: 1996-04-26
Abstract: PROBLEM TO BE SOLVED: To produce a color filter high in reliability and having a resin black matrix without causing the peeling of films during patterning or in the succeeding process by providing the black matrix with a two-layer structure consisting of a first layer containing no light-shielding agent and a second layer containing a light-shielding agent. SOLUTION: In this color filter, a black matrix formed by dispersing a light- shielding agent in a resin is formed on a light-transmitting substrate. The black matrix has a two-layer structure consisting of a first layer containing no light- shielding agent and a second layer containing a light-shielding agent. The first layer is in contact with the substrate, and the second layer is formed on the first layer. The sum film thickness of the first layer and the second layer is preferably <=1.2μm. The proportion of the light-shielding agent to the resin is preferably >=45wt.%. The light-shielding agent is preferably a carbon black. The resin used is preferably polymide for both of the first and second layers.
Patent JP-H046836-A (JP)
Title: Manufacture of semiconductor device
Inventor: MARUYAMA TAKAHIRO
IPC: H01L21/3205
Filed: 1990-04-25
Abstract: PURPOSE:To obtain a manufacturing method in which deposition is small and by which the possibility of disconnecting a metal interconnection formed at the upper part is small by a method wherein an amorphous silicon film formed on an insulating film is etched in an inclined shape expanded and opened upward and the insulating film is etched by making use of the amorphous silicon film as a mask. CONSTITUTION:The following processes are included: a process to form an amorphous silicon film 5 on an insulating film 2 formed on a metal film 1, for interconnection use, constituting one part of a semiconductor device; a process to form a resist mask 3, having an opening in a desired pattern, on the amorphous silicon film 5; a process to etch, via the resist mask 3, the amor phous silicon film 5 in an inclined shape expanded and opened upward; a process to etch the insulating film 2 by making use of said amorphous silicon film 5 as a mask after the resist mask 3 is removed; and a process to form a metal film 4, for upper-part interconnection use, on the metal film 1 for interconnection use and on the insulating film 2 after the amorphous silicon film 5 has been removed. For example, said insulating film 2 is etched under a condition to form an inclined shape expanded and opened upward.
Patent JP-H09292796-A (JP)
Title: Vibration control device for photoreceptor of image forming device
Inventor: YAMAMOTO MASANORI
IPC: G03G21/16
Filed: 1996-04-26
Abstract: PROBLEM TO BE SOLVED: To enhance the quality of an output image by constituting a vibration control device of a fly wheel arranged so that it can be integrally rotated with a supporting shaft for rotating a photoreceptor, an elastic body fixed to the fly wheel by aligning the one-direction thereof with the tangent direction of a concentric circle to the supporting shaft and a mass body fixed to the other end part of the elastic body. SOLUTION: The supporting shaft 12 is fixed to the rotatably arranged photoreceptor 11 so that it can be integrally rotated. The extended part of the shaft 12 is provided with the fly wheel 16 so that it can be integrally rotated with the shaft 12. The elastic body is provided with elasticity at least in the one-direction thereof and fixed to the wheel 16 by aligning the one-direction thereof with the tangent direction of the concentric circle to the shaft 12. Besides, the mass body 23 is fixed to the other end part of the elastic body. Then, the vibration control device 1 is constituted of the wheel 16, the elastic body and the mass body 23. By the vibration control device 1, the fluctuation of the rotating speed of the photoreceptor 11 is minimized even when both of periodic or aperiodic force exerts on it.
Patent JP-S5632344-A (JP)
Title: Manufacture of optical fiber base material
Inventor: KAWACHI MASAO
IPC: C03B37/016
Filed: 1979-08-25
Abstract: PURPOSE:To obtain an optical fiber base material having superior characteristics in loss in great quantities by hydrolyzing glass forming starting materials in liq.  phase after which the resulting silicic acid gel is dehydrated in a halogen gas atmosphere and transparently vitrified by heating at a high temp. CONSTITUTION:A mixture of SiCl4 and GeCl4 as starting materials 6 for a core is spouted into thin-walled pipe 2, and SiCl4 as starting material 7 for a clad into container 1. By spouting distilled water 9, 10, Si(OH)4 and Ge(OH)4 are formed by hydrolysis, and they are allowed to stand to accelerate polymn. reaction and hardened. Pipe 2 is then pulled out, and after a time container 1 is removed to obtain cylindrical gelled base material 24 composed of core gel and clad gel. Material 24 is mounted on rotary support 23 in the electric furnace for dehydration and transparent vitrification, and it is heated while feeding a gaseous halide such as SOCl2 or Cl2 as a dehydrating agent to core tube 21 from feeder 26 together with He gas. Thus, material 24 is converted into an OH group-free transparent base material by shrinkage at about 1,200 deg.C.
Patent JP-H03204846-A (JP)
Title: Novel carboxamide group containing (meth) acrylic acid ester
Inventor: MIHIYAERU MIYURAA
IPC: A61K6/083
Filed: 1990-04-25
Abstract: The invention relates to novel carboxamide group-containing (meth)acrylic acid esters (I) of the general formula (I) <IMAGE> in which R<1>, R<2>, R<3>, R<4>, R<5> and X have the meaning given in the description and preparations (II) which contain compounds (Ia) for use as an adhesive component for the treatment of collagenic materials, and processes for the production and the use of the preparations (II).
Patent JP-H02287408-A (JP)
Title: Waveguide type optical branching element
Inventor: TAKAGI AKIHIRO
IPC: G02B6/122
Filed: 1989-04-28
Abstract: PURPOSE:To relieve the existence of dependency of a power coupling rate on wavelength by forming two pieces of optical waveguides in the coupling region in a directional coupler in such a manner that the widths thereof vary from each other and the depths are the same as each other. CONSTITUTION:Two pieces of the optical waveguides 1a, 1b in the coupling region in the directional coupler 2 are so formed that the widths thereof vary from each other and the depths are the same as each other. The structure in which the widths of the waveguides 1a, 1b in the coupling region of the directional coupler vary is adopted for the directional coupler in such a manner. The waveguide type optical branching element of a low loss with which the existence of dependency of the coupling rate on wavelength is relieved to, for example, 50%+ or -10% in a desired wavelength region, for example, a wavelength region including 1.3 to 1.55mum with the practicable structure is thereby obtd.
Patent JP-S5537228-A (JP)
Title: Control method of jump motion during spark machining
Inventor: MITSUZAWA YOSHITO
IPC: B23H7/30
Filed: 1978-09-01
Abstract: PURPOSE:To stabilize the effect of each pickup at a certain level, by monitoring the interpole voltage or the drip voltage of current limiting resistance while picking up after the begining of jump due to some signal and continuing the pickup untial a certain pickup effect is obtained. CONSTITUTION:A spark machining circuit 1 is composed of a dc power source 11, current limiting resistance 12, transistor 13 periodically turning on/off with a pulse source 14 as a signal, working electrode 15, work 16, etc. Once the pickup begins, the device detects the mean interpole voltage above the reference level, continuing to pick up until an additional certain pickup is completed. When the reference level of interpole voltage is high enough, it is possible to reduce the additional pickup to zero, and the additional pickup is adopted to properly reduce the reference level. This system can stabilize the effect of each pickup.
Patent JP-H11307860-A (JP)
Title: Semiconductor laser and semiconductor optical amplifier
Inventor: NANBU YOSHIHIRO
IPC: H01S5/343
Filed: 1998-04-17
Abstract: PROBLEM TO BE SOLVED: To improve the transverse mode controllability, by spatially controlling the distribution density of quantum dots in an active layer of a surface-emitting semiconductor laser having the active layer including a quantum dot structure. SOLUTION: A quantum dot-contg. active layer 22 is formed horizontal, two end faces 21 form a resonator, the active layer 22 is sandwiched between clad layers 23, the quantum dot density in the active layer 22 is modulated to spatially change so as to be low on the laser resonator axis and it increases gradually away from the resonator axis, resulting in that the spatial change ratio of the laser emission light intensity near the laser resonator axis in this direction is small and the light intensity in the wave guide in this direction is in approximately a uniform transverse mode. Desired transverse mode in the transverse direction can be obtd. by changing the quantum dot density distribution.
Patent JP-S63274652-A (JP)
Title: Method for elevating purity of ceramic superconductor to high level
Inventor: TANAKA YASUZO
IPC: C01G3/00
Filed: 1987-04-30
Abstract: PURPOSE:To obtain the title superconductor having high purity, high critical current density, and high critical temp. by subjecting a ceramic superconductor to a specified treatment. CONSTITUTION:When a ceramic superconductor consisting of an element of the group IIa of the periodic table, an element of the group IIIa of the periodic table, Cu and O is transformed from tetragonal crystal system to rhombic crystal system within a temp. range from +100 deg.C to -100 deg.C above and below the transformation temp. from the tetragonal form the rhombic form of the superconductor, oxygen in the atmosphere is enriched by exerting uniaxial compression, hydrostatic pressure or thermal stress to the superconductor to apply a load thereto. When the superconductor transforms from rhombic form to tetragonal form, the load o the superconductor is reduced by reducing the pressure of the atmosphere and reducing the pressure of the oxygen in the atmosphere.
Patent JP-H048191-A (JP)
Title: Motor control circuit
Inventor: TAKEDA MASUYUKI
IPC: H02P7/293
Filed: 1990-04-23
Abstract: PURPOSE:To simplify the constitution and to enhance the reliability by counting FC signals, proportional to the rotational speed of a motor, with a reference period and providing a switching PWM signal, produced from the count, directly to a switching section. CONSTITUTION:An oscillator 1 generates a reference period which is then fed to a frequency divider 2 and a counter 5. A detector 16 for detecting the rotational speed of one motor, a counter 3 for counting the duration of Frequency Generator(FG) signal detected through the detector 16 with the reference frequency, and a PWM signal generator 6 for generating a PWM signal having pulse width corresponding to the count in the counter 3 are also provided. The PWM signal is fed to the switching section 12 of a DC/DC converter where ON/OFF ratio of switching is varied and the output voltage of the converter is varied thus controlling the rotational speed.
Patent JP-S5631126-A (JP)
Title: Key input circuit
Inventor: ISHII JIYUN
IPC: H03M11/04
Filed: 1979-08-24
Abstract: PURPOSE: To ensure the generation of the bit signal of the binary code through a simple circuit constitution, by using the matrix circuit comprising the key switches provided at the intersections of the line and the row plus several gate circuits connected to the matrix circuit.  
     CONSTITUTION: The key switches S 0 WS 15  are connected to the intersections between the signal lines of the rows T 1 WT 4  and the columns K 1 WK 4  respectively. Thus the key matrix circuit 10 is formed. Each signal line of the column is earthed via the pull-down resistance R. And the signal lines K 2  and K 4 , K 3  and K 4 , K 1 W K 4 , T 2  and T 4  plus T 3  and T 4  are connected to the OR gates P 1 , P 2 , P 3 , P 4  and P 5  respectively. The outputs of gates P 1  and P 2  are connected to the output terminals A and B; and the outputs of gates P 3 WP 5  are connected to the output terminals C and D via the AND gates P 6  and P 7  each. The timing pulses are supplied successively to the signal lines T 1 WT 4 , and either one of the switches S 0 WS 15  is pushed. Thus the bit signal of the binary code according to the siwtch number is produced at the output terminals AWD. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H10269334-A (JP)
Title: Automatic supply counter for headed bar-shaped part
Inventor: ADACHI RYUSUKE
IPC: G06M7/00
Filed: 1997-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a supply counter which enables fast supply count and is small in size an high in efficiency. SOLUTION: A count sensor 6 that is near the bottom edge of a chute that is obliquely attached 5 continuously counts headed bar-shaped part 2 which flow down with a head 2a hung up to a set number close value (N-n), and when they reach the close value, 1st and 2nd blocking members 11 and 12 of a separating unit 10 separate and supply the parts 2 until they reach a set number (N). Since the parts 2 are supplied to a packing machine 7 in the set number each, even if the headed bar-shaped parts continuously slide down, there is no interval between the headed bar-shaped parts and the number of them is accurately counted. Also, counting time until acquiring the set number is shortened without always needing to operate the separating unit.  Further, even when a headed bar-shaped part is long, the counting time is not affected at all, and even when the packing machine is accelerated, it sufficiently copes with acceleration.
Patent JP-H11301945-A (JP)
Title: Overload detector for elevator
Inventor: HARADA MINORU
IPC: B66B5/14
Filed: 1998-04-17
Abstract: PROBLEM TO BE SOLVED: To prevent running inability for a user by quickly invalidating an overload detecting operation when the erroneous detection of overloading occurs because of the deterioration of an elastic member with the lapse of time or when a load having a load value slightly exceeding a limit load is transported. SOLUTION: When a load having a load value near a limit load is placed or when the number of passenger near a passenger capacity board an elevator, if the elevator is stopped by the overload detecting operation of an elevator weighing device or if the load having a load value slightly exceeding a limit load is transported irrespective of the deterioration with the lapse of time of a vibration-proof rubber member, a locking panel 10 in an in-car running board 5 is unlocked to pull down an operation part cover 90 and accordingly open a special operation part 9, and an overload detection invalidation button 95 among operation buttons thereof is switched to invalidate an overload detecting operation performed by the elevator weighing device.
Patent JP-H0284505-A (JP)
Title: Precursor for producing carbon fiber
Inventor: KOBAYASHI MAKOTO
IPC: C08F220/00
Filed: 1989-04-26
Abstract: PURPOSE:To provide the subject precursor having an oxygen concentration ratio of <= a specific value between the inner and outer layers thereof by a secondary ion mass spectrometry analysis after subjected to a multistage fire- resisting treatment in air at atmospheric pressure and a specific temperature for a specified time, having a high strength and a high elastic modulus and capable of shortening the fire-resisting time and of enlarging the fineness thereof. CONSTITUTION:A monomer mixture comprising >=85% of acrylonitrile, 1-10% of a polymerizable unsaturated carboxylic acid ester (e.g., normal butyl methacrylate) and 0.25-5% of a polymerizable unsaturated carboxylic acid (e.g., itaconic acid) is copolymerized in a solvent such as dimethyl sulfoxide to prepare a spinning raw solution, which is spun out in an aqueous dimethyl sulfoxide solution from a spinneret, followed by drawing the produced fiber and subsequently subjecting the drawn fiber to a fire-resisting treatment at 260 deg.C for 5min and further at 280 deg.C for 5min in air at atmospheric pressure to provide the objective carbon fiber precursor having an oxygen concentration ratio of <=6.0 between the inner and outer layers thereof by a secondary ion mass spectrometry analysis (SIMS) after subjected to the fire-resisting treatment.