baber/WOPTO huggingface dataset:
Patent JP-S61183108-A (JP)
Title: Preparation of fine powder of aluminium nitride
Inventor: MITOMO MAMORU
IPC: C01B21/072
Filed: 1985-02-09
Abstract: PURPOSE:To prepare fine AlN powder having high purity by dissolving Al alkoxide in an org. solvent, dispersing fine carbon powder therein, then hydrolyzing the Al alkoxide by adding water and heating a powder mixture of obtd. Al hydroxide or alumina with C at high temp. in N2 atmosphere. CONSTITUTION:Al alkoxide is dissolved in 3-15 times by weight of org. solvent such as ethanol or propanol, etc. Powdery carbon having high purity and <=0.1mu particle size, such as carbon black is added and mixed with Al alkoxide in 2:3-3.3 proportion, then 2-20 times by molar ratio of water to Al alkoxide is added. After hydrolyzing Al alkoxide by heating the liquid mixture slowly, the water and the solvent are removed by evaporation by heating under reduced pressure. The obtd. powder mixture of C with Al(OH3) or Al(OH)3 or Al2O3 is heated at 1,400-1,600 deg.C for 1-30hr in N2 atmosphere. Thus, fine AlN powder contg. <=2% residual carbon and having 0.05-1.0mu particle size is obtd.
Patent JP-H01199149-A (JP)
Title: Resistance-type alcohol sensor
Inventor: KURIHARA SUSUMU
IPC: G01N27/07
Filed: 1988-02-04
Abstract: PURPOSE:To enable the invariably exact detection of the concentration of alcohol, by a method wherein a spacer made of a material having a non-bloating tendency is employed to separate a pair of electrodes from each other at a prescribed gap and thereby to maintain a fixed distance between the electrodes even when they are immersed in an alcohol mixed solution for a long time. CONSTITUTION:A spacer 13 whose opposite side surfaces are contact surfaces 13A with a pair of electrode plates 11 is provided to maintain a fixed distance l between the electrode plates 11. The spacer 13 is formed in the shape of a rectangular flat plate of ceramics or the like having a non-bloating tendency in relation to gasoline and alcohol, and it is provided with a cut-shaped solution intrusion part 14 so that gasoline mixed with alcohol can be interposed between the electrode plates 11. Rectangular holders 15 in a pair are provided opposite to the spacer 13 with the electrode plates 11 in contact with the opposite side surfaces of the spacer 13 respectively interposed therebetween. The electrode plates 11 are pressed on the spacer 13 constantly by presser springs 20 provided between the plates and the holders 15. By this constitution, the distance l between the electrode plates 11 can be kept fixed invariably without suffering a the effect of a bloating tendency of the solution mixed with alcohol, and thus the concentration of the alcohol can be detected exactly.
Patent JP-2000219949-A (JP)
Title: PRODUCTION OF Zn-Al-Si ALLOY PLATED STEEL SHEET EXCELLENT IN DESIGNING PROPERTY
Inventor: HIKINO SHINYA
IPC: C23C2/26
Filed: 1999-02-01
Abstract: PROBLEM TO BE SOLVED: To reduce the variation of spangle patterns by executing annealing under the conditions that the reducing gas atmosphere and dew point in an annealing furnace satisfy specified relations. SOLUTION: A base metal steel sheet is subjected to Zn-Al-Si alloy plating by using continuous hot dip plating equipment provided with an inline annealing device. The compsn. of the plating bath is composed of, by weight, 30 to 70% Al, 0.05 to 2.0% Si, and the balance Zn with inevitable impurities. This steel sheet is first heated in an oxidizing furnace to remove oil contents adhered to the surface, which is cleaned, and, after that, annealing is executed in a reducing atmosphere in an annealing furnace. By this annealing, together with the removal of strains, iron oxide in the surface of the steel sheet is reduced to activate the surface, so that the plating adhesion therein can be secured.  For this purpose, the gas atmosphere in the annealing furnace is controlled so as to satisfy the following three relations: +10 deg.C >= dew point >= -40 deg.C; 2% hydrogen concn. <=30%, and the balance nitrogen; dew point >= (hydrogen concn. × 2-annealing temp./10+10) deg.C.
Patent JP-H10209798-A (JP)
Title: Shield plate and piezoelectric filter using the same
Inventor: FUJII HIROSHI
IPC: H03H9/54
Filed: 1997-01-22
Abstract: PROBLEM TO BE SOLVED: To improve a guaranteed attenuation quantity and operability by extending a V-shaped tip at a shield part, which covers input/output lead terminals at both ends over their overall length and extending a hook part to a coupling part of a center part to be coupled, hooking the hook part to a flange of a base as a fixed end, and pressing and fitting both V-shaped ends in. SOLUTION: This shield plate 7 is constituted by pressing a flat plate type metallic plate and forming 1st and 2nd channel-shaped shield plates 7a and 7b which cover the input/output lead terminals to their overall length and the coupling part 7c. Further, the V-shaped tip part 8 is extended from the roof parts of the shield parts 7a and 7b, the L-shaped hook part 9 is extended to the coupling part 7c, and a groove 10 into which the center lead terminals is inserted is formed. The hook part 9 is hooked to the flange of the metallic base as a fixed end, and the tip part 8 is pressed and fitted in abutting against it, thus easily mounting the shield plate 7 on the metallic base. Consequently, electrical coupling in the entire region between the input and output is prevented to make the guaranteed attenuation quantity sufficient, thereby improving the operability.
Patent JP-H11223639-A (JP)
Title: Rotating speed detector
Inventor: ISHIGURO TETSUYA
IPC: G01B7/30
Filed: 1998-02-05
Abstract: PROBLEM TO BE SOLVED: To more precisely detect rotating speed, short-circuit and disconnection even during use in such an environment that the powder supply voltage is unstable. SOLUTION: This detector includes a sensor (b) which is turned on/off in response to the change of a magnetic flux density with the rotation of a rotor (a) to change a consumed current value, a power supply (c) to drive the sensor (b) and a waveform shaping circuit (d) to form a Hi/Lo pulse signal corresponding to the change of the consumed current value of the sensor (b). A stabilizing circuit (e) is provided between the power supply (c) and the waveform shaping circuit (d) and the sensor (b) to feedback voltage therebetween and stabilize voltage applied to the sensor (b).
Patent JP-H07234980-A (JP)
Title: On-vehicle automatic warning device
Inventor: BABA TSUTOMU
IPC: B60R21/34
Filed: 1994-02-22
Abstract: PURPOSE:To provide an on-vehicle automatic warning device which can automatically perform a warning operation only when it is needed. CONSTITUTION:An on-vehicle automatic warning device gives the warnings in voices to the persons present around a vehicle in response to such operations as those of the gear and the blinker 1 of the vehicle. Then a sensor 3 is added to the vehicle to detect the obstacles existing around the vehicle. When the sensor 3 does not work, the warning operation of the device 2 is prevented.
Patent JP-H03228819-A (JP)
Title: Production of wet powdery calcium carbonate
Inventor: IRIKO KAZUO
IPC: D21H17/67
Filed: 1990-02-05
Abstract: PURPOSE:To improve centrifugal dehydration property of wet powder of calcium carbonate without losing its quality when used as a filler of paper by introducing gaseous CO2 under specified conditions into a lime suspension to produce light CaCo3 slurry and subjecting this slurry to centrifugal dehydration. CONSTITUTION:Gaseous CO2 is introduced into a lime suspension having >=5wt.% concn. at >=30 deg.C under conditions of >=25vol.% CO2 gas concn., 20-100 Nl/min.kg Ca(OH)2 gas flow and >=1.0kg/cm<2> gas gauge pressure at the exit of the reaction tower till pH of the suspension becomes <=8 so as to obtain a spindle-like light CaCo3 slurry. Then a lime suspension by 0.2-2 molar ratio is added to this slurry, into which gaseous CO2 having >=25vol.% CO2 gas concn. is introduced with <=40Nl/min.kg Ca(OH)2 flow rate to obtain a light CaCO3 slurry comprising uniform flocculation of 2-5mu particle size. Then, this process is repeated for several times as necessary so as to obtain flocculated light CaCO3 slurry of 3-10mu particle size and the obtd. slurry is subjected to centrifugal dehydration at >=3000m/min peripheral velocity to obtain wet powdery CaCO3 containing <=35% water.
Patent JP-S63195474-A (JP)
Title: Magnetic fluid shaft seal device for liquid
Inventor: YAMATAKE SEIJI
IPC: F16J15/43
Filed: 1987-02-04
Abstract: PURPOSE:To improve pressure resistance of a magnetic fluid shaft seal and to extend its seal function duration to a long period, by providing an air pressure decrease cause determination device and a magnetic fluid supply device so that the magnetic fluid supply device is actuated being associated with magnetic fluid only when it is damaged. CONSTITUTION:If the pressure in an air chamber 17 between both pole rings 11, 11A decreases to a lower limit value, this decrease of the pressure is detected by a pressure detector 24, and air is fed from an air supplier 25 till the pressure reaches an upper limit value. And checking a change of the pressure in the air chamber 17 within the fixed time by a determination device 27, if a seal is decided to be damaged in annular gaps 13 by magnetic fluid 14 between the fluid and a rotary shaft 10, a magnetic fluid supplier 22 is actuated supplying the magnetic fluid 14 in a fixed quantity to the annular magnetic gaps 13 by a magnet 15 through a pipe 21 and supply holes 12B, 12, 12A. Thereafter, the air, being again fed till the pressure in the air chamber 17 reaches the upper limit value, is stopped. In this way, pressure resistance of the magnetic fluid shaft seal improves, while the seal function duration can be extended over a long period by less consumption of magnetic fluid.
Patent JP-2000224558-A (JP)
Title: Image transmitter, image processor, image display system and their method
Inventor: SHIBAMIYA YOSHIKAZU
IPC: H04N7/15
Filed: 1999-02-01
Abstract: PROBLEM TO BE SOLVED: To obtain an image processor by requesting still picture information to a host when the still picture information is required and displaying a picture based on received moving picture information or still picture information to cope with requests without deteriorating the response of the image display system even when the requests of the same still picture are concentrated within a short time interval. SOLUTION: A system control section 1212 discriminates whether or not still picture data of a still generating to be displayed are stored in a data buffer 1207. When not stored, the system control section 1212 controls a high speed serial I/F control section 1206 to request transfer of the still picture data to a host. Upon the receipt of the requested still picture data, the high speed serial I/F control section 1206 gives the data to the data buffer 1207. The received still picture data are fed to a display section 13 via a digital video transmission section 1211 similarly to the case with a moving picture, where the requested still picture by a user is displayed.
Patent JP-S62182196-A (JP)
Title: Vapor growth apparatus
Inventor: OKAMOTO AKIHIKO
IPC: H01L21/205
Filed: 1986-02-05
Abstract: PURPOSE:To provide a vapor growth apparatus useful for the production of a semiconductor element and effective in preventing the deterioration of a thin film, by encircling a substrate in a reaction tube with a jig made of a material capable of absorbing reaction products produced according to the growth of the thin film. CONSTITUTION:A substrate 1 such as GaAs crystal is placed on a graphite supporting table 2 placed in a reaction tube 3 made of quartz, etc., and is heated at about 720 deg.C with a high-frequency coil 4. Separately, a raw material gas (e.g. arsine) is introduced through a gas inlet port 5 into the inner reaction tube 6 and subjected to the thermal decomposition near the interior jig 7 made of graphite and the epitaxial growth of the decomposition product on the surface of the substrate 1. The products produced by side reactions are adsorbed to the jig 7 to form a contamination-free thin film on the substrate 1.
Patent JP-H05165005-A (JP)
Title: Information recording medium and information record reproducing method
Inventor: IIJIMA MASAYUKI
IPC: G11B7/24
Filed: 1992-01-14
Abstract: PURPOSE:To easily provide an elctro-optical effect, enable the recording and memory of analog information eliminate needs for a deflecting plate for information reproduction, simplify an optical system for readout, enable the production of a large-area information recording medium, thereby providing an image with high resolution and no unevenness. CONSTITUTION:A first information recording medium is hardened and formed by means of an ultraviolet ray irradiation, after a mixed solution consisting of a liquid crystal and an ultarviolet ray hardening type resin moulding matrial is applied onto an electrode layer 13 to form an information recording layer 11, and the outer surface of which is a skin layer consisted of only an ultraviolet ray hardening type resin. A second information recording medium is such that a transparent electrode 13' is furthermore provided on the information recording layer 11 of the first information recording medium.
Patent JP-H09195934-A (JP)
Title: Vacuum pump
Inventor: IGARASHI MASASHI
IPC: F04B37/16
Filed: 1996-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a vacuum pump in which the operation is automatically stopped when the vacuum pressure becomes higher than the set vacuum pressure, and the operation is automatically started when the vacuum pressure becomes lower than the set vacuum pressure. SOLUTION: The insides of pistons 10a, 10b to be reciprocated in cylinders 9a, 9b on both sides of a main body block 2 are taken as vacuum chambers 12a, 12b, the outsides thereof are taken as driving chambers 13a, 13b, the vacuum chambers are communicated with an inlet port 6 for sucking air in a vacuum pressure chamber 5 through inlet check valves 15a, 15b, and they are communicated with an outlet port 7 for air through outlet check valves 16a, 16b. When driving fluid is supplied to and discharged from the driving chambers from a supplying port 3 for driving fluid through a governor 18 and a selector valve 17, the pistons are reciprocated, and pressure in the vacuum chamber is lowered to make vacuum pressure.  When the vacuum pressure of the inlet port 6 becomes higher than set vacuum pressure set by the governor 18, supply of driving pressure fluid to the driving chambers is shut off by the governor 18, and a vacuum pump 1 is automatically stopped, on the other hand, when the vacuum pressure becomes lower than the set vacuum pressure, driving pressure fluid is supplied to the driving chambers by the governor 18, and the operation is automatically started.
Patent JP-H03230420-A (JP)
Title: Manufacture of element wire for snow accretion resistant cable
Inventor: NISHIO MASANOBU
IPC: H01B5/08
Filed: 1990-02-02
Abstract: PURPOSE:To prevent accretion of ice and snow, and to achieve long life by inserting an aluminium wire or aluminium alloy wire provided with a thin film including carbon, into fluorine plasma gas, so as to form a thin film including carbon fluoride. CONSTITUTION:A thin film 22 including carbon is formed on the outer surface of an aluminium wire or of an aluminium alloy wire 21. When the wire is inserted into an ionized space including carbon tetrafluoride compound or sulfur fluoride compound, fluorine plasma gas is solidly bonded to the carbon in the thin film 22, and a thin film 23 including carbon fluoride is formed on the surface of the film 22. Since the thin film 23 includes fluorine that is solidly bonded to carbon and the lubricating ability of the film is enormous, the film 23 is not peeled off. By twisting an element wire 20 for snow accretion resistant cable thus obtained and placed on an outermost layer, with a copper wire, the snow accretion resistant cable can be obtained.
Patent JP-H08220382-A (JP)
Title: Two-dimensional optical fiber array and its production
Inventor: KOSAKA HIDEO
IPC: G02B6/40
Filed: 1995-02-14
Abstract: PURPOSE: To inexpensively produce a two-dimensional array for transmitting highly parallel optical information signals. CONSTITUTION: This two-dimensional optical fiber array is composed of plural pieces of optical fibers 1, two pieces of L-shaped guides 2 for bundling these fibers and further a cover 3 for reinforcing these fibers and guides. These members are fixed by an adhesive 5. The optical fibers 1 of the same outside diameter are previously bundled and temporally fixed by one array each in the adjacent state. These fibers are superposed and slide into the L-shaped guide 2 and are pressurized by sliding the guide, by which the optical fibers 1 are automatically aligned to the two-dimensional array shape.
Patent JP-S60169828-A (JP)
Title: Electrode substrate of liquid crystal display element
Inventor: SOMEYA SAKAE
IPC: G09F9/35
Filed: 1984-02-15
Abstract: PURPOSE:To reduce disconnections and detect a contacting position easily by projecting electrode patterns from electrode patterns which are connected at one side and not connected at the other side, and thus forming projection part. CONSTITUTION:Electrode patterns 12a, 12c, 12e... have projection parts 14a, 14c, 14e... projecting from electrode patterns 12b, 12d, 12f... at one side and are not connected at the other side, so the contact of the electrode pattern 12a, etc., is inspected by bringing one terminal of a detector into contact with a connection part 13 and sliding the other terinal on the projection part 14a, etc., successively. In this case, the electrode pattern 12a, etc, are found easily when the terminal of the detector is slid on the projection part 14a, etc., because the electrode patterns 12a, etc., are independent. Further, only one side is connected by the connection part 13, so only one side is disconnected as shown by a broken line 15.
Patent JP-H11225156-A (JP)
Title: Electronic mail network system
Inventor: SAKATA NAOTAKE
IPC: H04L12/58
Filed: 1998-02-06
Abstract: PROBLEM TO BE SOLVED: To provide an electronic mail network system that sets automatic transfer of an electronic mail efficiently. SOLUTION: A common share directory of a system management server 15 is provided with a mail system management table 16, where an available electronic mail system and a transfer flag denoting an electronic mail system to collect electronic mails sent to pluralities of electronic mail systems are registered for each user. Transfer destination setting sections 17-a, 17-b, 17-c transfer automatically electronic mails to electronic mail systems A, B, C when a transfer flag of a user indicates other electronic mail systems for the transfer destination.
Patent JP-H04244591-A (JP)
Title: Roller
Inventor: BAIDA YOSHIO
IPC: F28D15/02
Filed: 1991-01-25
Abstract: PURPOSE:To expand a heat pipe by the application of fluid pressure by inserting said heat pipe into the hole of roll. CONSTITUTION:A joint section 5, such as threaded groove is installed to an opening edge of a hole 2 of a heat pipe so that a high pressure hose for fluid pressure pipe expansion may be connected.
Patent JP-S54118533-A (JP)
Title: Thyristor valve
Inventor: KANOU TAKASHI
IPC: H02M7/04
Filed: 1978-03-08
Abstract: PURPOSE: To make necessary flexibility for bus smaller by suppressing the variation upon oscillation in the connecting direction of bus by providing connection terminal for bus for external apparatus connection so that rigidity in the connecting direction to bus is higher than that in the other direction.  
     CONSTITUTION: Structure is designed to raise rigidity against force applied in the direction along a vertical plane in parallel with the entrance axle of bus from outside in such a way that making and breaking is not made for inspection. For example, the plane B as shown in Fig. is the one from which the tray 22 can not be drawn out, both dides are ones from which drawing out is possible, and the bus connection terminal 23 and the insulating plate wall 24 are provided as shown in Fig.. And, the outside shell is made up of the reinforced plastic strut 21, the strut 25, and the frame 26. Thus, the variation upon oscillation in the X-axial direction is constant but the variation in the longitudinal direction of bus in the Y-axial direction is suppressed by the insulating plate wall 24, thus making the flexibility of bus smaller. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S53110350-A (JP)
Title: Filter unit
Inventor: NAKAJIMA YASUO
IPC: H03H9/54
Filed: 1977-03-08
Abstract: PURPOSE:To enhance the attenuation properties of the multiple mode filter as well as to ensure an easy design and manufacture, by using a piezoelectric plate featuring the thickness vibration and a double-terminal circuit containing the piezoelectric resonator.
Patent JP-H08215882-A (JP)
Title: Laser beam welding method of lap joint of galvanized steel sheet
Inventor: TARUI HIROSHI
IPC: B23K26/32
Filed: 1995-02-14
Abstract: PURPOSE: To prevent the generation of the defective welding when the lap joint of galvanized steel sheets is laser beam welded. CONSTITUTION: When the lap joint of galvanized steel sheets whose coating weight of galvanization exceeds about 20g/m<2> on one side is laser beam welded through irradiation with the laser beam 3, the laser beam welding is achieved while the powder 5 of Mn oxide is fed to a part 7 to be welded as the material whose standard generation free energy of the oxide is smaller than that of iron and larger than that of zinc.
Patent JP-S57139682-A (JP)
Title: Watch case
Inventor: HAYASHI JIYUNICHI
IPC: G04B37/18
Filed: 1981-02-24
Abstract: PURPOSE:To simplify the shape of component parts and reduce the number thereof by arranging an outside drum on the rising outer periphery of a box- shaped member formed of transparent systhetic resin and by compressing and engaging the rising tip part of the box-shaped member with a back at the lower part of the outside drum. CONSTITUTION:The outside drum 11 formed of a metal is set on the rising outer periphery of the box-shaped member 10 formed of synthetic resin, and the outside drum 11 and the back 4 formed also of a metal are compressed and engaged thereon through the intermediary of the lower projection 10a of the box- shaped member 10. Moreover, on the outside drum 11, a glass rim 2 formed of a metal is set and said glass rim 2 is compressed on and engaged with the box- shaped member 10 in the direction of the diameter leaving a little compression margin. By such a constitution, simplification of the shape of the component parts and reduction of the number thereof can be achieved and thus the cost therefor can be reduced sharply in comparison with conventional watches.
Patent JP-S54117984-A (JP)
Title: Simple ball cutter
Inventor: EGAWA MASARU
IPC: B26B13/00
Filed: 1978-03-07
Abstract: PURPOSE: To easily cut an organic resin lens by simultaneously cutting the lens upon contact of the lens with heat source.  
     CONSTITUTION: Cutting edges 2 of heat source are heated at higher than 70°C via 100 V cord wires 3 to cut an organic resin spectacle lens by means of the steps of cutting it via the cutting edges 2 and making the heat source contact with it. 
     COPYRIGHT: (C)1979,JPO&Japio