baber/WOPTO huggingface dataset:
Patent JP-H10335995-A (JP)
Title: Comparator for supply voltage in wider range
Inventor: KUTTNER FRANZ
IPC: H03F3/45
Filed: 1998-03-27
Abstract: PROBLEM TO BE SOLVED: To obtain a comparator for supply voltage in a wide range, which needs only as a relatively little input voltage as possible between operation voltage and ground voltage to the setting of an operation point by providing a conductive type diode that is the same with the conductive type of a transistor, which is used as a switch for the purpose of operation points setting in a differential amplifier stage. SOLUTION: The operation points at nodes a1 and q1 are defined not by a PMOS diode but by an NMOS diode 11. As a result of this, a substrate control operation becomes an advantage as a switch 3 just as when an NMOS transistor is used. An operation point no longer rises strongly as for supply voltage under the rise of supply voltage VDD. On the contrary, it develops into a voltage drop which is caused by a substrate control operation via the diode 11. As long as the diode 11 conducts, the NMOS transistor which is used as a switch also becomes sufficiently low in resistance.
Patent JP-S62238742-A (JP)
Inventor: IIDA KOSUKE
IPC: B32B27/42
Filed: 1986-04-09
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-S62236142-A (JP)
Inventor: JIYON EDOUIN GANTSUHOON JIYUNI
IPC: G11B5/86
Filed: 1987-04-03
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-S62237425-A (JP)
Title: Light modulating element
Inventor: SAKATA HAJIME
IPC: G02F1/1347
Filed: 1986-04-08
Abstract: PURPOSE:To substantially remove the rainbows, diffracted image, etc., occurring in the presence of unnecessary diffracted light and to improve the utilizing efficiency of light by disposing plural diffraction grating groups in such a manner than the arranging directions of the gratings are made random. CONSTITUTION:A liquid crystal 7 is used as a refractive index variable material. The liquid crystal 7 is packed in the groove parts (recesses) of the rectangular diffraction grating 2 existing between a pair of transparent substrates 1 formed with transparent electrodes 4. A nematic liquid crystal having a positive dielectric characteristic or the like is adequate as the liquid crystal 7. The liquid crystal 7 is oriented in the groove direction (direction perpendicular to the plane of the figure) of the diffraction grating 2. The orientation direction is changed to the arranging surface of the diffraction grating 2, i.e., an electric field direction by impressing an electric field between the transparent electrodes 4. The light polarized within the plane of rotation of the optical axis of the liquid crystal 7 senses the refractive index between the normal refractive index n0 and abnormal refractive index ne of the liquid crystal 7 according to the angle with the optical axis of the liquid crystal 7.
Patent JP-S61240591-A (JP)
Inventor: AKIYOSHI MITSUO
IPC: H05B11/00
Filed: 1985-04-17
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-S57197077-A (JP)
Title: Object for adding chemical agent to liquid
Inventor: KOUNO TOSHIMICHI
IPC: C02F1/50
Filed: 1981-05-27
Abstract: PURPOSE: To stabilize a dissolving amount per unit time with the elapse of time by floating a chemical agent adding object on which a solid chemical agent eluting a chemical agent into a treating liquid is coated is floated on the water level in a water tank such as a water upply tank or the like in such a condition that the apparent specific gravity thereof is made lower than that of the treating liquid.  
     CONSTITUTION: Plural adding objects of a solid chemical agent containing an algae killing component and an anti-corrosion component are dispersed and floated on the water level in a water tank 3 to gradually elute the chemical agent into water. The adding object 10 is prepared by a method wherein a chemical agent is coated over the entire outer surface of a hollow spherical float 11 in a flowing condition mixing a solvent and an adhesive as well as dried and solidified to coat a solid chemical agent A in a coating condition and elutes the chemical agent quantitatively from the surface thereof into water in a reduced surface area changing condition by contacting the same with water while it is freely rotated by wave action of the water level due to the falling of water. The float 11 is recovered by scooping up the same by a net after the chemical agent is eluted to be reutilized. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S59208952-A (JP)
Title: Bi-directional coherent optical communication system
Inventor: KUWABARA HIDEO
IPC: H04B10/00
Filed: 1983-05-12
Abstract: PURPOSE:To attain a heterodyne/homodyne optical communication with no strict stability needed for frequencies of a transmission reference light source and a local oscillation light source, by applying a feedback with a difference frequency signal between both said light sources to obtain a fixed difference frequency. CONSTITUTION:The light delivered from a reference oscillator 41 is branched into two parts by a branching coupler 43. The light of one side is modulated by a modulating signal SIG1 through a modulator 42 and transmitted to a station 6 of the remote side via an optical fiber 51. A photodetector 65 demodulates the received signal and obtains a signal proportional to the difference frequency between an optical frequency f1 given from the oscillator 41 of an end office 4 and an optical frequency f2 given from a reference oscillator 61 of an end office 6. This signal is applied to a feedback circuit 66. A photodetector 45 demodulates the modulated signal and at the same time detects a difference frequency (f1- f2) between oscillators 41 and 61 to supply it to a feedback circuit 46. The circuit 46 gives a fine adjustment to the optical frequency of the oscillator 41 in order to fix the difference (f1-f2).
Patent JP-S5510306-A (JP)
Title: Production of weldable super hard sintered alloy
Inventor: OOISHIBASHI SADAO
IPC: B22F3/24
Filed: 1978-07-07
Abstract: PURPOSE: To obtain the captioned sintered alloy inexpensively and readily by polishing and finishing the bonded surfaces of the super hard alloy sintered body and the specified stainless steel sintered body then heating and pressing the same in a non-oxidative atmosphere to cause their diffusion fusion.  
     CONSTITUTION: The surfaces to be bonded of the sintered alloy of a super hard alloy composed primarily of tungsten carbide and the sintered alloy having the composition of austenite base stainless steel are polished and finished. Next, with both being held contacted at the bonding surfaces, these are heated while being pressured in a non-oxidative atmosphere (e.g., 5 to 50kg/cm 2 , 1200 to 1280°C), whereby both are diffusion-fused and integrated. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S526166-A (JP)
Title: Oil and water separating device for gas tanks at gas stations
Inventor: OOSHIMA KENJI
IPC: B01D17/00
Filed: 1975-07-04
Abstract: PURPOSE: To obtain a compact and highly efficient oil and water separating device for a gas tank of a gas station,which can remove even such things sand. This device has a three-layer-type drain bit with a liquid cyclone and an oil removing device,which consists of a separating compartment for coarse grains and an absorbtion separating compartment. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09250345-A (JP)
Title: Cover for intake of engine cooling water
Inventor: IIJIMA AKIRA
IPC: F01P11/00
Filed: 1996-03-11
Abstract: PROBLEM TO BE SOLVED: To provide a cover for intake of an engine cooling water which can compensate a decrease in pressure in a water tank and the delay of an increase in the pressure and thus can prevent cavitation or partial boiling when the cover is opened to supply water when the atmospheric temperature is high. SOLUTION: A cylindrical inserting part 23 for tightly inserting into a water intake 21 is made on the cover 20 for covering the water intake 21 and a cylinder 26 whose one end is open to the water intake side is formed in the inserting part 23 and a pressuring valve 27 which is urged in the direction of the open port by a pressuring spring 28 is disposed in the cylinder 26, Also when the atmospheric temperature is high, water is filled in a water tank 1 and then the cylindrical inserting part 23 is tightly inserted into the water intake 21 and the pressurizing spring 28 pressurizes water via pressurizing valve 27, whereby the water pressure in the water tank 1 is pressurized, which prevents the occurrence of cavitation and a decrease in the flow of the cooling water.
Patent JP-H0598061-A (JP)
Title: Rigid polyurethane foam, production thereof, thermal insulation material, and refrigerator using same
Inventor: KUROISHI KAZUYOSHI
IPC: C08G18/08
Filed: 1991-04-15
Abstract: PURPOSE:To produce a rigid polyurethane foam using a blowing agent contg. little or no CFC of which the use is regulated. CONSTITUTION:Water, at least one blowing agent selected from the group consisting of 2,2-dichloro-1,1,1-trifluoroethane and 1,1-dichloro-1-monofluoroethane, and at least one blowing agent selected from the group consisting of an HCFC having a b. p. of 0 deg.C or lower and an HFC are used in combination as a blowing agent. Thus, a low-density rigid polyurethane foam having balanced properties, esp. excellent in dimensional stability, is obtd. without using a CFC of which the use is regulated to prevent air pollution and to protect the ozone layer.
Patent JP-S58198781-A (JP)
Title: Distance measuring device using light
Inventor: TAKAGI AI
IPC: G01S17/32
Filed: 1982-05-15
Abstract: PURPOSE:To make an easy and high-reliability measurement possible, by projecting a modulated wave from a measuring instrument to a reflector and causing the resonance phenomenon in a distance measurement section by this modulated wave. CONSTITUTION:A light emitting equipment 1 generates radio waves. A modulated wave generator 2 oscillates sine waves, and sine waves are applied to a modulator 3 to modulate the intensity of light, and a resonance frequency of resonance in a loop is searched. The intensity-modulated light is projected to a reflector 20. The reflected light from the reflector 20 is inputted to a detector 9 after being condensed and is subjected to the photoelectric conversion. An amplifier 21 amplifies the modulated wave from the detector 9 and inputs it to the modulator 3 again to form a loop. A display 23 operates the signal from a counter 22 to display a distance l. A measuring instrument 15 and a reflector 17 are installed at reference points, the distance between which should be measured, so as to face each other. It is confirmed that the quantity of the reflected light is measurable value, and the modulation frequency is changed gradually.
Patent JP-H04315326-A (JP)
Title: Radiotelephony system
Inventor: MIZOGAMI HIROSHI
IPC: H04M3/54
Filed: 1991-04-15
Abstract: PURPOSE:To provide a radiotelephony system in which both the cordless tele phone set and a radiotelephone service network such as a cellar telephone set are both available and which is switched automatically to a cordless tele phone set side not requiring a talking charge for the arrival of an incoming call within a radio wavel arrival range of the cordless telephone set and to the radio telephone service network side when the incoming call is not within the range. CONSTITUTION:A coordles radio section 7 capable of making radio communication with a cordless telephone set connected to a public telephone communication network makes ID exchange, e.g. periodically with the master set and when a detection section 9 detects that the telephone set enters a range available for radio communication with the cordless telephone master set through the reception of ID, the radio section 7 sends an automatic transfer registration requesting signal to an automatic transfer registration section 1 and a control section 10 receiving the signal makes a transmission request to the radio telephone service network to transfer an incoming call to the radio telephone service network to the master set of the cordless telephone set.
Patent JP-S526547-A (JP)
Title: Magnetic signal reader making use hole head
Inventor: KUROYANAGI TADASHI
IPC: G01B7/00
Filed: 1975-07-04
Abstract: PURPOSE: To obtain a magnetic signal reader which can completely disregard the temperature coefficient and which improves the position reading accuracy. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H02262129-A (JP)
Title: Waveguide type optical switch
Inventor: KATSUTA NOBUYUKI
IPC: G02B6/12
Filed: 1989-03-31
Abstract: PURPOSE:To reduce polarization dependency upon a driving voltage and switching characteristics and to secure the light confinement effect of a waveguide highly by specifying the length of the coupling part of a directional coupler and arranging four divided electrodes on the directional coupler opposite each other. CONSTITUTION:Two waveguides 2 and 3 are formed on a substrate 1 and the coupling part 6 is formed so that parts of the waveguides 2 and 3 are close to each other. Then the coupling part length L of the coupling part 6 in TE mode is about four timers as long as the complete coupling length in TE mode and about twice as long as the complete coupling length in the TM mode as to the TM mode. Further, couples of four divided electrodes 41 - 44 and 51 - 54 which are divided into four respectively are arranged on both the waveguides 2 and 3 which form the coupling part 6 opposite each other and the four-divided electrodes 41 - 44 and 51 - 54 are applied with voltages which invert the directions of electric fields alternately to drive and control the electrodes. Consequently, an element driving voltage is reducible, the polarization dependency upon the switching characteristics can be made small, and the light confinement effect of the waveguides 2 and 3 can be secured highly.
Patent JP-H05278045-A (JP)
Title: Production of cleaning blade for electrophotographic copying machine
IPC: B29C39/02
Filed: 1992-04-03
Abstract: PURPOSE:To obtain a blade having little possibility of wearing a photosensitive body and generating filming and having a superior durability by a method wherein a specific curing agent is mixedly stirred with a pseudo-prepolymer and injected into a preheated mold for obtaining a specific 300% modulus and a specific impact resilience. CONSTITUTION:In the production of an electrophotographic copying machine cleaning blade, a pseudo-prepolymer is prepared by incorporating polyisocyanate and a polycaprolactone ester diol having a molecular weight of 1000-3000; a curing agent consisting of a high-molecular polyol having a molecular weight of 1000-3000 and a low-molecular polyol having a molecular weight of 60-250 is mixedly stirred with said pseudo-prepolymer containing 8-20% isocyanate group in a hydroxyl/isocyanate equivalent ratio of 0.8-0.9; and the curing agent is injected into a preheated mold. In this manner, a 300% modulus of 130-250kg/cm<2> and an impact resilience of 45% or more at 20 deg.C are provided.
Patent JP-S5721211-A (JP)
Title: Edge plate bedded by hard substance and its manufacture
Inventor: DEIITAA KURESU
IPC: B23P15/30
Filed: 1981-06-01
Abstract: 1. A carbide metal cutter plate, coated with hard material, for the fine machining of bores, characterized by a chip face (3), which is free from hard material at least in the zone of the auxiliary cutting edge.
Patent JP-H01254996-A (JP)
Title: Signal selecting circuit
Inventor: KAWAHARA TOSHISHIGE
IPC: G09G5/18
Filed: 1988-04-04
Abstract: PURPOSE:To enable automatic switching of the synchronizing signal separated from a composite video signal and a separate horizontal synchronizing signal by providing a logical circuit which outputs the synchronizing signal inverted by a polarization inverting circuit at the time of detecting the separate horizontal synchronizing signal and outputs the synchronizing signal separated in a synchronizing sepn. circuit at the time of non-detection. CONSTITUTION:A horizontal synchronizing signal input terminal Bb is connected to the base of a transistor 7 via a resistor R6, a capacitor 4, a diode 6, and a resistor R7, and the TR 8 forms a detection circuit of the separate horizontal synchronizing signal. The detection circuit turns off the TR 8 at the time of detecting the separate horizontal synchronizing signal. The output of the TR 8 and the polarity-inverted separate horizontal synchronizing signal are ANDed by the logical circuit 10 and the polarity-inverted separate horizontal synchronizing signal is outputted to the next stage. The TR 8 turns on to output the synchronizing signal separated from the composite video signal in the synchronizing sepn. circuit 2 at the time of the non-detection of the separate horizontal synchronizing signal. Two kinds of the synchronizing signals which are different in specifications are thereby automatically switched.
Patent JP-S59210524-A (JP)
Title: Production of amorphous magnetic head
Inventor: IKUTA ISAO
IPC: C22C45/04
Filed: 1983-05-13
Abstract: PURPOSE:To obtain an amorphous magnetic head having a reduced amount of reproduction output by using a molten metal to produce directly a ferromagnetic amorphous ribbon having specific surface accuracy and at the same time using said ribbon to satisfy the manufacturing process. CONSTITUTION:A nozzle 3 is projected at its tip center part, and the length l1 of the center part is longer than the length l2 of both end part for a gap through which a molten metal 2 is sprayed. As a result, the length L of a steady flow having approximately same value as the slit width is much larger than a conventional slit nozzle as shown by the sprayed molten metal layer 2. That is, the length L can cover up to a place near the tangent between rolls. Therefore no temperature difference exisrs within the molten metal loop for the plate thickness in the width direction of a ribbon produced by a double roll method. Thus a ribbon having even thickness is obtained. The plate thickness difference of a core obtained by blanking said ribbon is measured together with the degree of deterioration of reproduction output due to the tape driving time. As a result, the plate thickness difference can be set at <=0.5mum and therefore the space between core laminations can be rediced down to <=1mum. Thus an even area is secured for a binder since the plate thickness difference of the core is very small. This head can reduce greatly the degree of said deterioration of reproduction output for a magnetic head.
Patent JP-S569427-A (JP)
Title: Preparation of polycrystalline alumina fiber
Inventor: AOKI SUSUMU
IPC: D01F9/08
Filed: 1979-07-02
Abstract: PURPOSE: To obtain the titled fiber, suitable for a high-temperature heat insulating material, having a high strength and heat resistance, by forming a fiber from finely divided Al(OH) 3 , prepared through hydrolysis of an aluminum alcoholate, and by calcining the fiber in two stages under specific conditions respectively.  
     CONSTITUTION: An aluminum alcoholate, preferably aluminum isopropoxide, is dissolved in n-hexane and hydrolyzed in a large amount of water, preferably at 20°C or below to precipitate finely divided aluminum hydroxide (A). A thickener, e.g. polyvinyl alcohol, is added to the hydroxide which is still in an amorphous form, and the mixture is concentrated if necessary to give a fiber-forming paste. The paste is then spun into a precursor fiber, which is calcined by heating to 700°C slowly, preferably at a heating rate of 5°C/min or less, to convert the Al compound in the fiber into γ-alumina. The resulting γ-alumina is rapidly heated to 1,200W 1,300°C, preferably at a heating rate, of 10°C/min or more, to give the objective fiber consisting of α-alumina. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S567644-A (JP)
Title: Manufacture of catalyst carrier
Inventor: MURACHI MIKIO
IPC: B01D53/94
Filed: 1979-06-29
Abstract: PURPOSE: To increase the strength and the specific surface area of catalyst carrier, by mixing Mg compound with alumina contg. ρ-alumina or χ-alumina as a portion or as a principal component, then after formation of the mixture by drying and calcining the mixture.  
     CONSTITUTION: A compound of Mg is mixed with alumina contg. ρ-alumina or χ-alumina as a portion or a principal component and is formed. The mixture is aged in a humidified atmosphere and saturated steam. Mg(OH) 2 , MgO, MgCO 3  etc. are used as the Mg compound, and 75W200°C temp. is preferable as the aging temp. when Mg(OH) 2  or MgO is used, and ≥120°C temp. is preferable when MgCO 3  is used. Calcining at a temp. lower than these temp. described above permits to harden the mixture satisfactorily, and the specific surface area is selected at will according to need. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H04293914-A (JP)
Title: Polymer powder
Inventor: YONEKAWA YOSHIAKI
IPC: C05G3/80
Filed: 1991-03-25
Abstract: PURPOSE:To obtain a polymer powder excellent in coating workability, adhesive strength, redispersibility and storage stability by combining an alkyl (meth) acrylate and/or a conjugated diene with a functional monomer and monomers copolymerizable therewith and specifying the particle diameter. CONSTITUTION:This powder comprises 1-99.9wt.% alkyl (meth)acrylate and/or conjugated diene (a), 0.1-40wt.% functional monomer (b) and 0-98.9wt.% other monomers (c) copolymerizable with components (a) and (b) (the total of components (a) to (c) being 100wt.%) and has a particle diameter of 1-150mum.
Patent JP-H11281257-A (JP)
Title: Rotary retort kiln and heat treatment method with the same
Inventor: AKAMI MASAHIKO
IPC: F27B7/14
Filed: 1998-03-30
Abstract: PROBLEM TO BE SOLVED: To reduce or eliminate noise generated with the spinning of a beater member in a core tube as much as possible and enable heating or cooling treatment of material to be treated with a very high fluidity. SOLUTION: In this retort kiln 1, a core tube 2 rotated by a drive motor 17 is installed almost horizontally and inside the core tube 2, a beater member 22 having a plurality of blade pieces formed radially is loosely fitted to be spinnable radially. In this case, the beater member 22 comprises single bodies which each has a specified axis length L divided in plurality with respect to the axis length L, of the core tube 2 while the single bodies are made spinnable individually. This enables partially variable setting of vibration and impact applied to the core tube by the beater member to reduce noises thereby lowering noises as a whole and also allows prolonging of the time of retaining the material to be treated with a very high fluidity.
Patent JP-H02260636-A (JP)
Title: Etching of algainp crystal
Inventor: SHONO MASAYUKI
IPC: H01L21/308
Filed: 1989-03-31
Abstract: PURPOSE:To form a ridge, whose side surfaces have a large angle of inclination, by a method wherein an AlGaInP crystal is etched using a hydrobromic acid. CONSTITUTION:In a semiconductor laser of a prescribed structure, a hydrobromic acid containing 47% of HBr and a hydrochloric acid-phosphoric acid mixed solution of HCl:H3PO4=1:6 are used as an etching liquid for forming a ridge of a clad layer 4. At this time, a face (1-1-1) appears on each side surface of the ridge 5 and the angle of inclination of the face (1-1-1) becomes 55 deg. and is larger than the angle of inclination which is formed by a conventional method. If the layer 4 is generally a (AlxGa1-x)yIn1-yP (0<=x, Y<=1) crystal, the face (1-1-1) appears on each side surface of the ridge. In case an AlGaAsP multilayer film containing a GaAs layer is simultaneously etched, an oxidizing reagent like a nitric acid is added to the hydrobromic acid. An etching rate can be changed by adding a dilution substance, such as water and the like. By this constitution, a threshold current can be reduced and a stable transverse mode can be controlled in a ridge waveguide type laser.