baber/WOPTO huggingface dataset:
Patent JP-H0581650-A (JP)
Title: Magnetic recording medium
Inventor: ATA MASAFUMI
IPC: G11B5/73
Filed: 1991-09-24
Abstract: PURPOSE:To enhance the stability with lapse of time and to improve preservable stability by subjecting metallic articles of the recording medium having a magnetic layer consisting of ferromagnetic metallic particles and a binder to a surface treatment with dinitrogen oxide. CONSTITUTION:The magnetic metallic particles for the magnetic recording medium and the gaseous dinitrogen oxide are brought into contact with each other in a hermetic container to execute the surface treatment. The metallic particles subjected to such surface treatment are kneaded together with a resin binder, an org. solvent and additives to prepare a coating material. This coating material is applied on a nonmagnetic base to form the recording medium having the magnetic layer. The surfaces of the metallic particles are treated with the dinitrogen oxide in such a manner, by which the micropores generated at the time of forming an oxide film on the surface are closed and the infiltration of oxygen, water or corrosive gases from these parts is prevented. The degradation in the residual magnetic flux density and more particularly coercive force of the recording medium is lessened and the stability of the magnetic characteristics with lapse of time and preservable stability are improved.
Patent JP-2000073693-A (JP)
Title: Segment for shield tunneling method
Inventor: TANAKA HIROSHI
IPC: E21D11/08
Filed: 1998-08-28
Abstract: PROBLEM TO BE SOLVED: To prevent uneven distribution of cement paste and secure the strength and water-tightness of segments by forming holes allowing the cement paste to pass therethrough in a partition and forming a concrete segment by a centrifugal molding. SOLUTION: L-shaped steel end plates 13 having a bent 14 are attached at every specified distance at the inside face of a cylindrical form and a plurality of reinforced concrete segments 10 constituting a circular ring are formed at the same time by a centrifugal molding. Two rows of holes 15 having a diameter of about 12 mm are separately formed at every 10 cm distance on the end plate 13 at the surface side of a segment body 11. In this time, when the holes 15 are formed by cutting and erecting, the cut and erected pieces function as anchors of the end plate 13. In this way, the cement paste in the cylindrical form flows freely through the holes 15 during the centrifugal molding and it is evenly distributed to the whole periphery to prevent occurrence of a honeycomb resulting from uneven distribution of the cement paste.  Accordingly, the strength and water-tightness of the segments 10 can be secured.
Patent JP-H0698336-A (JP)
Title: Image pickup device
Inventor: TAKEI HIROFUMI
IPC: H04N9/04
Filed: 1992-09-11
Abstract: PURPOSE:To implement white balance correction with high accuracy normally while white balance traces a change in a color temperature in a short time. CONSTITUTION:A gain of a color signal obtained from an output of an image pickup element 1 is corrected by gain control circuits 3,4 operated according to a correction signal from D/A converters 43, 44 to implement white balance control. A color signal from A/D converters 30, 31 is integrated by adders 36, 37 and holding circuits 39, 40 for each of plural areas being divisions of a screen, and when a correction signal arithmetic operation section 42 fetches the integration value in any of the usual mode fetching the integration value of all the areas and the mode fetching the integration value for the specific area only, high speed white balance correction is attained in the latter mode.
Patent JP-H0582441-A (JP)
Title: Silicon carbide bipolar semiconductor device and its manufacture
Inventor: TAKASU HIDESHI
IPC: H01L27/06
Filed: 1991-09-24
Abstract: PURPOSE:To obtain grown silicon carbide layers having a uniform facial direction by growing the crystal of a silicon carbide seed crystal layer until the layer protrudes from openings formed through an oxide insulating layer and disconnecting the silicon carbide seed crystal layer from a silicon substrate by oxidizing the entire surface so as to oxidize the silicon substrate below the openings. CONSTITUTION:The surface of a silicon substrate 2 is thermally oxidized by heating the substrate 2 placed in an oxygen flow at a high temperature. Then the silicon oxide layer 4 thus formed is etched by using a photoresist 10 as a mask and openings 14 for growing seed crystals are formed. After forming the openings 14, the substrate 2 exposed in the openings 14 is carbonized and seed crystal layers 16 are formed by selectively epitaxially growing silicon carbide single crystals in the openings 14. Then, after oxidizing the surface of the layers 16, the silicon oxide layers 18 on the surface of the layers 16 are removed by etching. Thereafter, epitaxial growth is performed by using the silicon carbide seed crystal layers 16 as seed crystals.
Patent JP-S6390548-A (JP)
Inventor: JIYOSEFU OODAA
IPC: C08L9/00
Filed: 1987-09-28
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-H1176763-A (JP)
Title: Method for purifying charge transfer material for electrophotographic photoreceptor
Inventor: SHIMIZU HIROSUKE
IPC: B01D61/14
Filed: 1997-09-09
Abstract: PROBLEM TO BE SOLVED: To provided the purifying method capable of obtaining a charge transfer material for electrophotographic photoreceptor having excellent characteristics. SOLUTION: In this method, a charge transfer material(CTM) is purified by dissolving the CTM in an organic solvent, adding an activated clay in the solution to suspend them and filtering them with a membrane filter >=90 KPa in isopropyl alcohol having a bubble point stipulated by JIS K3832 or >=249 KPa in water. As an electron attractive materiel used as the CTM, diphenoquinone, naphthoquinone, anthraquinone and an aromatic carbonyl compound such as fluorenone or the like are exemplified. As an electron donating material, one low in ionization potential is preferably used and a compound having nitrogen atom in the molecule is particularly suitable.
Patent JP-H08111474-A (JP)
Title: Formation of wiring layer
Inventor: EZAWA HIROKAZU
IPC: H01L23/12
Filed: 1994-10-07
Abstract: PURPOSE: To prevent the major part of a wiring layer, i.e., a metal layer, from being exposed to the outer surface by depositing a second fine metal particle film on the entire surface including the metal layer and then removing first and second resist films simultaneously with first and second fine metal films except the part covering the metal layer thereby forming a wiring layer. CONSTITUTION: Fine particles of Ti are deposited on the upper surface of a resist film 13 of a semiconductor substrate 11 to form a Ti film. Subsequently, fine particles of Pd are deposited on the Ti film to form a laminate of Ti/Pd. A resist film 24 is formed thereon and an opening 25 corresponding to a predetermined wiring pattern is made therein such that the laminate of Ti/Pd 15 is exposed. A Cu layer 26 is then formed on the Pd film in the laminate of Ti/Pd 15 exposed in the resist opening 25 by electrolytic plating using the resist 24 as a mask and the laminate of Ti/Pd 15 as a cathode. Consequently, the Cu layer 26 in a wiring layer 28 is covered by the laminate of Ti/Pd 15 and an Ni layer 27 and prevented from being exposed to the outer surface.
Patent JP-H0586010-A (JP)
Title: Azo-based compound and diazonium salt
Inventor: MIZUTA YASUSHI
IPC: C07D498/04
Filed: 1991-09-24
Abstract: PURPOSE:To obtain a new azo-based compound, having high sensitivity and improved in light stability by introducing the structure of acenaphthenequinone which is a quencher into the molecule of the azo-based compound and a new diazonium salt as an intermediate suitable for producing the azo-based compound. CONSTITUTION:An azo-based compound expressed by formula I (A is coupler residue), e.g. a compound expressed by formula III and a diazonium salt expressed by formula II (X is anion) which is an intermediate for the compound. The compound expressed by formula I, e.g. a compound expressed by formula Ia is obtained by dropping sodium nitrite or nitrous acid into an acidic aqueous solution of an amine-based compound expressed by formula IV at a low temperature while stirring the acidic aqueous solution, then adding an acid to be an origin of the anion (X), providing a crystallized new tetrazonium salt expressed by formula IIa, subsequently adding a prescribed amount of a coupler expressed by the formula HA to the resultant tetrazonium salt in an organic solvent and carrying out coupling reaction.
Patent JP-H0582508-A (JP)
Title: Manufacture of semiconductor device
Inventor: NAKAJIMA TSUNEHIRO
IPC: H01L21/31
Filed: 1991-09-25
Abstract: PURPOSE:To prevent deterioration of device characteristics by the moisture intruding through cracks in the passivation film covering the electrode on a semiconductor device. CONSTITUTION:After formation of an electrode 4, the whole surface is covered by a film of the same material as that of a passiviation film 3, and a passivation film 3 is formed on the smooth-tapered surface, a side-wall layer 5, with which the overhung generated on the side wall can be filled up, is left on the side face of an anisotropic etching electrode, and then a passivation film 3 is formed on the surface having a smooth face. As a result, the step coverage of the passivation film 3 is improved, and cracks can be prevented.
Patent JP-2001061838-A (JP)
Title: Ultrasonograph
Inventor: WATANABE YOSHINOBU
IPC: A61B8/08
Filed: 1999-08-30
Abstract: PROBLEM TO BE SOLVED: To provide an excellent ultrasonograph capable of realizing the asynchronous movement by each block while reducing generation of noise, selecting the most suitable clock frequency for each block, and acquiring a high quality ultrasonic image. SOLUTION: A transmission trigger generator 114 transmits transmission trigger signals to an ultrasonic transmitting/receiving part 111 and a communication cable 105. Ultrasonic echo signals are transmitted to the communication cable 105 through a delay synthesizing part 112. A synchronous clock, synchronizing with the transmission trigger signals received through the communication cable 105, is generated by a synchronous clock generator 122 and supplied to an A/D convertor 121 as an A/C converting clock. The ultrasonic echo signals received through the communication cable 105 are converted to digital image data by the A/D convertor 121 with the timing of the synchronous clock.
Patent JP-H03106529-A (JP)
Title: Bender for cable
Inventor: SASAOKA HIROAKI
IPC: B21F1/00
Filed: 1989-09-20
Abstract: PURPOSE:To reduce the working space and to improve the workability by bringing the shoe having the curved part to project with the pressurized oil cylinder of the nearly central part of the body and bending the cable which is supported with the rotary roller of the one side of body and with the fixed guide of the other side of body. CONSTITUTION:On the case of the working of 90 deg. bending (a), one side of the bent cable 1 is supported with the rotary rollers 3, 4, and the other side of cable 1 is supported with the fixed guides 6, 7, and the piston rod 10a of the pressurized oil cylinder 10 is brought to project and the part to be bent of the cable 1 is pressed with the shoe 11 and subjected to 90 deg. bending. And further, when it is subjected to the bending for adjusting preliminary length (b) or the bending of elongation and contraction absorbing part (c), after the one side of the rod type cable is clamped with the rotary rollers 3, 4 and the other side of the cable is clamped with the fixed guides 6, 7, the piston 10a of the pressurized oil cylinder 10 is brought to project and the cable 1 is pressed with the shoe and then the cable 1 is bent to the C-letter state or to the U-letter state.
Patent JP-H08108271-A (JP)
Title: Narrow gap butt welding method of fixed tube
Inventor: SUGITANI YUJI
IPC: B23K9/095
Filed: 1994-10-07
Abstract: PURPOSE: To prevent generation of incomplete fusion by executing high speed rotating arc welding in first layer welding and build-up layer welding by specifying the rotating speed and rotating diameter of arc and executing welding in final layer welding by weaving a welding torch. CONSTITUTION: Fixed tubes 1, 2 are subjected to narrow gap butt welding by gas metal arc welding. In first layer welding, a ceramic backing CB is abutted to the rear face of narrow gap 3. The high speed rotating arc welding of 20-100Hz arc rotating speed and 1-4mm arc rotating diameter is used. While the welding condition, for each welding position and each root gap, is selected from the optimum welding condition set in the range of 150-500A welding current and 50-300cm/min welding speed, peripheral downward welding is executed. In build-up layer welding, the arc welding diameter D is changed to 2-6mm, welding is executed in the range of 150-400A welding current and 20-120mm/min welding speed. In final layer welding, welding is executed in the range of 80-200A welding current and 10-40cm/min welding speed.
Patent JP-H08106574-A (JP)
Title: Automatic beverage vending machine
Inventor: CHIGIRA NOBORU
IPC: G07F13/06
Filed: 1994-10-07
Abstract: PURPOSE: To provide an automatic beverage vending machine which is capable of shortening the sales time per cup, reducing the lowering of the quality of beverage and the remainders as much as possible and preventing the lowering of the taste and aroma of beverage. CONSTITUTION: In an automatic beverage vending machine provided with an extractor 5 extracting beverage from the mixed liquid of beverage raw material and hot water, a beverage storing part storing the extracted beverage for sale, a storage amount detection part 16 detecting the storage amount of the beverage stored in the beverage storing part and an extraction control part 21 performing an extraction control in which the extracter 5 is made to extract the beverage of second prescribed amount when the storage amount detected by the storage amount detection part 16 is first prescribed amount or below.
Patent JP-H08109174-A (JP)
Title: Thiazolidin-2-one derivative
Inventor: SUGIMOTO ATSUSHI
IPC: A61P43/00
Filed: 1994-10-07
Abstract: PURPOSE: To obtain the subject new derivative having a potent aldose reductase inhibiting activity, and useful as an aldose reductase inhibitor. CONSTITUTION: This thiazolidin-2-one derivative (or its salt) is expressed by formula I (R<1> is a 1-7C alkyl, a 4-7C cycloalkyl, a (substituted)phenyl, naphthyl, etc.; X is oxygen atom or sulfur atom), e.g. 3-carboxymethyl-5-benzylidene- thiazolidine-2,4-dione. The compound of formula I is obtained e.g. by deesterification of an ester derivative of formula II (R is an alkyl) through alkali or acid hydrolysis, reduction, etc. The reaction product obtained can be purified by means of recrystallization, thin-layer chromatography, column chromatography, etc.
Patent JP-H0618809-A (JP)
Title: Color image reader
Inventor: MASANO SEITA
IPC: H04N1/028
Filed: 1992-06-30
Abstract: PURPOSE:To prevent the generation of blur on the surface of a photodetector caused by the deviation of an image forming position due to the wavelength difference of the diffracted light beams of the respective orders and to obtain a color image reader for accurately reading the color image with three color light beams R, G, B. CONSTITUTION:When the image of a color picture is formed on the surface of a light receiving means 4 arranging three line sensors 8-10 on the same substrate by an image forming optical system 2 and the color image is read by the light receiving means 4, a color separating means 3 composed of an one dimensional blazed diffraction grating of a reflection type for separating an incident beam into three color light beams in the optical path between the image forming optical system 2 and the surface of the light receiving means 4 is provided and a correcting means 20 for correcting the deviation of an image forming position on the surface of the light receiving means 4 caused by the wavelength difference of the respective color light beams separated by color by means of the one dimensional blazed diffraction grating 3 is also provided in the vicinity of the surface of the light receiving means 4.
Patent JP-S6299399-A (JP)
Inventor: YOAHIMU ENGERUSU
IPC: C07K14/555
Filed: 1986-10-16
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-H1092455-A (JP)
Title: Produced water recovering device for fuel cell generating device
Inventor: KOMATSU TADASHI
IPC: H01M8/06
Filed: 1996-09-17
Abstract: PROBLEM TO BE SOLVED: To recover the amount of produced water as specified neither more nor less even if a flow rate of gas to be fed is fluctuated as generation loading is fluctuated, furthermore heat and take out cooling water to be used for recovery, and utilize it effectively. SOLUTION: The produced water recovering device 9 is formed out of a heat exchanger 3 which introduces air electrode off-gas and combustion exhaust gas, cools them, produces recovered water, and emits exhaust gas, a flow regulating valve 4 adjusting a flow rate of cooling water to be given to the heat exchanger 3, a thermometer 5 detecting the temperature of exhaust gas, a temperature setter 7 setting the temperature of the heat exchanger 3, and of a temperature regulator 6 which receives the detected signal of the thermometer 5 and the set signal of the temperature setter 7, and thereby sends a valve opening control signal to the flow regulating valve 4, flow signals for combustion air, original fuel and reaction air from flow gauges 8A, 8B and 8C are sent to the temperature setter 7, and the temperature of the heat exchanger 3 is thereby set based on the aforesaid flow signals.
Patent JP-H0697572-A (JP)
Title: Semiconductor laser element
Inventor: TANAKA TOSHIAKI
IPC: H01S5/042
Filed: 1992-09-14
Abstract: PURPOSE:To make the reduction in a threshold value, continuous oscillation at room temperature and high temperature actuation feasible by a method wherein a ZnSSe strain waveguide layer is provided as a barrier layer adjacent to a CdZnSe strain active layer. CONSTITUTION:A Cl doped n-type ZnSe optical waveguide layer 2, a C1 doped n-type ZnSzSe1-z strain barrier waveguide layer 3, an undoped CdxZn1-xSe strain active layer 4, an N doped p-type ZnSe optical waveguide layer 5, a Cl doped n-type ZnSe current constitution layer 6 are successively epitaxially deposited by molecular beam epitaxy(MBE) on a (100) plane n-type ZnSe substrate 1. Later, a striped mesa from the layer 6 to the layer 5 is formed by photolithography and chemical etching step. Next, photoresist is removed to buried-deposit an N-doped p-type ZnSe contact layer 7 by MBE. Finally, p side electrode AuZn and n side electrode In are evaporated and scribed by cleavage to cut out an element shape.
Patent JP-H0858405-A (JP)
Title: Speed change operating device for cultivator
Inventor: HAYATA HIROMITSU
IPC: A01B33/08
Filed: 1995-09-22
Abstract: PURPOSE: To reduce both assembling man-hours and the number of part items and to enhance speed change operating performance by providing a power transmitting mechanism on one side of a transmission case incorporating both traveling part driving mechanism and rotary cultivating device driving mechanism, projecting both speed-change shifter shafts on the other side (of the case) and extending a speed change operating member, which is placed in the middle part of both shafts, toward the rear of a machine body. CONSTITUTION: An engine and a rotary cultivating device are installed in the front part and in the rear part, respectively, of a machine body, and a transmission case 6 incorporating both a traveling part driving mechanism and a rotary cultivating device driving mechanism is placed between the engine and cultivating device. The transmission case 6 is provided with an input shaft 5a, an output shaft 30 of a traveling system, and an output shaft 31 of a rotary system. The input shaft 5a is engaged with a two-speed gear 32 of the traveling system and with a two-speed gear 33 of the rotary system through spline-engagement. The tip end part of a speed change lever 10, which is extended toward the rear of the maching body, is attached to a side surface of the transmission case 6 in a freely rotatable manner. In this case, the lever 10 is fitted into a slit 35 of speed change shifter shafts 34, 50 in a disengagable manner and is then moved. As a result, dimensional accuracy can be enhanced, and speed change operation becomes smooth.
Patent JP-H03106404-A (JP)
Title: Pressurized air cooling and dehydrating device
Inventor: TAKANO KAZUKIYO
IPC: B01D5/00
Filed: 1989-09-19
Abstract: PURPOSE:To accelerate cooling of high temperature air by bringing condensed water into contact with a heat dissipating section heated with compression heat, evaporating it, discharging the condensed water into the air in the form of water vapor to eliminate its discharge treatment and removing heat in the heat dissipating section by means of said evaporation. CONSTITUTION:In a heated air cooling and dehydrating device provided with a collecting section and a separating section S for condensed water, the cooling section is so constituted that the condensed water separated by the cooling section S for the condensed water is introduced by a pipe 23 and that said condensed water is brought into contact with a heat dissipating section 25 of a cooler 3 and evaporated thereon to utilize evaporation heat of the condensed water for cooling. As the result, cooling of high temperature pressurized air out of an air compressor 2 can be carried out with high efficiency, and the separated condensed water is not required to be discharged outside.
Patent JP-H0292446-A (JP)
Title: Method and apparatus for pressurizing casting
Inventor: MIHARA TAKASHI
IPC: B22D17/32
Filed: 1988-09-30
Abstract: PURPOSE:To surely and easily obtain a product having good quality by controlling work of pressurizing plunger so that shifting stroke rate of the pressurizing plunger to the time follows the aimed locus. CONSTITUTION:The desired locus of a shifting stroke St of the pressurizing plunger 63 to the time (t) is programed into a model part 7a in a feedback controller 7. By receiving the working command, the aimed shifting stroke St is treated with time-division and inputted to a deviation detecting part 7b. In the deviation detecting part 7b, the deviation DELTASt between the aimed shifting stroke St and the actual position St' of the pressurizing plunger 63 detected with the position detector 2 is calculated and this is inputted into a gain setting part 7c. The gain setting part 7c converts the deviation DELTASt of the stroke based on result of the deviation DELTASt into a pressure command value Pc as control rate. A driving device 9 obtains the pressure command value Pc and converts this into a signal PRf actually driving a solenoid relief valve 4 to control the pressure of a pressure source 5.
Patent JP-S6486738-A (JP)
Title: Private telephone equipment
Inventor: KOGA HISAO
IPC: H04M1/274
Filed: 1987-09-29
Abstract: PURPOSE:To accurately register a dial number with an easy operation by registering the dial number of a destination telephone in a desired auto-dial key during speech. CONSTITUTION:When a speaker A operates an auto-dial key 7a corresponding to the dial number of a telephone TELB and operates a DN key corresponding to a trunk line or an extension, where a call comes at present, during speech between a telephone TELA and, telephone TELB, a CPU 10 reads out the dial number of the telephone TELB from a corresponding storage area and displays and flickers the dial number of the telephone TELB on a LCD 9. When a pertinent dial key 7a is operated, a CPU 10 reads out the dial number of the telephone TELB from the storage area corresponding to a ON key 8a and transfers to and stores it in the storage area corresponding to the auto-dial key 7a, thus completing registration.