baber/WOPTO huggingface dataset:
Patent JP-S6298542-A (JP)
Title: Ion source
Inventor: KUROSAWA YUKIO
IPC: H01J27/08
Filed: 1985-10-25
Abstract: PURPOSE:To make it possible to ensure a stable ion beam by installing a means for applying AC voltage across the cathode and the anode. CONSTITUTION:An AC power supply 18 with sine waves is connected between a filament 10 and a vacuum case 1. As the result, ions are produced during the period when the electric potential of the filament 10 is negative and that of the vacuum case 1 is positive. Next, when the polarity of the voltage supplied from the AC power supply 18 is inverted, the electric potential of the filament 10 becomes positive and that of the vacuum case 1 becomes negative and as the result electrons having been flowing toward the vacuum case 1 being to flow toward the filament 10 and ions having sticking against the filament 1 begin to strike against the inner surface of the vacuum case 1. The above process occurs cyclically. Therefore, a fluoride adhering to the inner surface of the vacuum case 1 is automatically removed by sputtering produced by ionic impact occurring during the time when the vacuum case 1 has a negative elec tric potential. Consequently, the fluoride is prevented from accumulating on the inner surface of the vacuum case 1 and electric discharge can be maintained stable.
Patent JP-H0399942-A (JP)
Title: Differential device
Inventor: TERAOKA MASAO
IPC: F16H48/26
Filed: 1989-09-14
Abstract: PURPOSE:To correct both characteristics and obtain excellent operation limiting characteristics in a wide range from a small rotation difference to a large rotation difference by storing a torque sensing type differential limiting device and a rotation difference sensing type differential limiting mechanism in a differential device. CONSTITUTION:An axial groove 39 is formed on the inner periphery of a differential case 29 rotated when the driving force is transferred to a ring gear (not shown in the figure) fixed to a flange section 32 of a rear differential 11, a small projection 41 is coupled with this groove 39, and pressure rings 43 and 45 are connected to a differential case 29. The shaft section 49 of a pinion gear 47 is rotatibly held between both rings 43 and 45, and side gears 53 and 55 are engaged with the gear 47. Cams 51 moving pressure rings 43 and 45 in the axial direction are formed on mating sections of pressure rings 43 and 45 to the shaft section 49 of the gear 49. The differential case 29 and side gears 53 and 55 are connected by a pair of friction clutches 65 and 67, and side gears 53 and 55 are connected by a viscous coupling 77.
Patent JP-H0657979-A (JP)
Title: Simple garage
Inventor: TAKAHASHI AKIO
IPC: E04H6/04
Filed: 1992-08-13
Abstract: PURPOSE:To make it possible to disassemble a garage in compact size and in less installation space when it is not required and protect horizontal posts and a waterproofing cover from shaking right and left even when it is windy. CONSTITUTION:This simple garage comprises a plurality of horizontal supports 5 consisting of fitting contractible pipes 5a, 5b, 5c and 5d whose ends are mounted to vertical posts respectively and a waterproofing cover which is suspended from and fixed with one end of each fitting contractible pipe constituting the horizontal supports 5. An automatic fitting contraction means 12 which contracts and fits the fitting contractible pipe into at least one horizontal support 5 is automatically mounted. A curved skeleton 20 is mounted to the waterproofing sheet while this skeleton 20 is fixed with each fitting contractible pipe and a swing prevention means 22 comprising a roller or a stopper is mounted to the lower end of the skeleton 20.
Patent JP-H04117572-A (JP)
Title: Three-dimensional solid form generating device
Inventor: CHIYOU KOUDEN
IPC: G06T15/00
Filed: 1990-09-07
Abstract: PURPOSE:To generate a sweep solid intended by a user also to a curve of which the change of curvature is acute by executing the generation of the solid without the offset curve of a free curve when the solid is generated by making a sectional from on a plane along an orbit to include a free curve sweep. CONSTITUTION:When a point of inflection exists on a orbit, the orbit is transmitted to a curve dividing means 4, is divided by the point of inflection, after the segment of the orbit is increased, the orbit is transmitted to a vertex position determining means 5 and is transmitted to a graphic storage part 10 after it is redisplayed on a graphic display device 9 and original orbit data are updated. Besides, a swept position is determined based on the orbit transmitted by the vertex position determining means 5 and the sectional data read from the graphic storage part. Then, determined positional data are interpolated by a curve interpolating means 6, are displayed on the graphic display device 9 and are transmitted to a free curved surface generating means 7. Thus, even when the change of the curvature of the orbit is acute, a more precise sweep solid can be generated.
Patent JP-S6298589-A (JP)
Inventor: TAKESHITA SETSUO
IPC: H05B6/12
Filed: 1985-10-24
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-H0289842-A (JP)
Title: Method for transmitting power by fluid wave motion
Inventor: KOBAYASHI KAZUO
IPC: F16H39/00
Filed: 1988-09-23
Abstract: PURPOSE:To prevent a whole from being brought into a state to be incapable of motioning by a method wherein a number of closed fluid circuits are arranged in parallel and form a mechanism in which both an input and an output device repeat, in order, compression and expansion. CONSTITUTION:An input device E to generate a wave motion, a number of pipes C through which a wave motion Pa is propagated, and an output device F to convert a wave motion into a power are provided. With an input shaft G rotated, a swash plate J causes an input element A to repeat, in order, compression and expansion to generate a wave motion at fluid in the pipe C. The wave motion orderly expands an output element B and is exerted on a swash plate K, and causes rotation of an output shaft H, and orderly compresses the expanded output element B. Since a number of power transmission elements are arranged in parallel, reliability can be improved.
Patent JP-H08101151-A (JP)
Title: Odor monitor
Inventor: YAMANAKA SHIGEO
IPC: G01N27/12
Filed: 1994-09-30
Abstract: PURPOSE: To provide an odor monitor having excellent versatility, which can display the absolute situation of the atmosphere in environment including distinction whether it is reductive or oxidative. CONSTITUTION: The odor monitor is composed of an odor sensor 2 to sense the atmosphere in environment, EEPROM 7 to accommodate information pertaining to the characteristics of the sensor 2, LCD 6 to display the output of the sensor 2, and MPU 4 which computes the information exhibiting the presence of at least the atmosphere in environment on the basis of the output of the sensor 2 and the information of the EEPROM 7 and controls the LCD 6, wherein a minus sign is marked in the display given on the LCD 6 in case the value of information exhibiting the presence of the atmosphere in environment deflects to the negative side.
Patent JP-S6393453-A (JP)
Title: Preventing method for waving of molten metal surface
Inventor: NAKADA MASAYUKI
IPC: B22D11/06
Filed: 1986-10-08
Abstract: PURPOSE:To prevent the waving of molten metal surface by submerging one pair of electrodes connecting with a condenser in series into the upper part of molten metal at an interval toward horizontal direction and discharging condenser charge between the electrodes to restrain the vertical motion on the upper part of molten metal. CONSTITUTION:The molten steel 2 is continuously poured in a vertical mold 1 through a submerged nozzle 3 from a tundish and is flowed downward, to continuously cast a cast slab 5 by cooling the vertical mold 1. Then, at the position, for example, near the short side 1a, 1b of the vertical mold 1, one pair of electrodes 7a, 7b connecting with the condenser 6 in series are respectively submerged. Next, a switch 9 in the circuit 8 connecting with the condenser 6 in series to the electrodes 7a, 7b is thrown, to discharge the electric charge charged in the condenser 9 between the electrodes 7a, 7b through the upper part of molten steel 2. In this way, pinch force Fp is acted on the top part of molten steel 2 and so the vertical motion at the upper part of molten steel 2 is restrained and the waving of molten steel 2 surface is prevented.
Patent JP-H1182933-A (JP)
Title: Cyclone shaped combustion device
Inventor: MATSUI KOICHI
IPC: F23D14/62
Filed: 1997-09-03
Abstract: PROBLEM TO BE SOLVED: To provide a cyclone shaped combustion device capable of remarkably decreasing NOx and being completely actually used. SOLUTION: Premix gas 9 obtained by mixing gaseous fuel with combustion air is jetted from a nozzle port 51 opened on the inner peripheral surface of a cylindrical combustion chamber 3 in the tangential direction along the inner peripheral surface. The combustion chamber 3 is arranged in a storage area 7 of heating medium water 71. The peripheral surface 32 of the combustion chamber 3 is formed with a heat transfer wall in contact with the heating medium water 71. Flame formed by the premix gas 9 jetted from the nozzle port 51 is cooled to have low temperature by the heating medium water 71 through the heat transfer wall 32 so that NOx can be reduced.
Patent JP-H06196507-A (JP)
Title: Semiconductor device
Inventor: KURODA TAKARO
IPC: H01L29/812
Filed: 1993-09-24
Abstract: PURPOSE:To obtain a semiconductor device of high electron mobility using two-dimensional electron gas, by constituting an intermediate semiconductor layer among semiconductor layers of three-layered structure as a superlattice structure. CONSTITUTION:A semiinsulative GaAs substrate 1 is inserted into an MBE apparatus equipped with vaporization crusibles as molecular beam sources of Ga, In, Al and Si. The substrate is heated and cleaned, and an undoped GaAs layer 21 of about 1mum in thickness is grown by keeping the substrate at about 600 deg.C. An undoped InyGa1-y As layer 24 of about 200Angstrom  in thickness, and a Ga1-xAlxAs layer 3 of about 100Angstrom  in thickness are grown in order. After an undoped n-Ga1-xAlxAs layer 4 of about 1000Angstrom  in thickness is grown, a complete article is obtained by decreasing the substrate temperature. A two-dimensional electron gas layer 5 is confined in a potential well (w) of about 200Angstrom  in width of the undoped InyGa1-yAs layer 24 sandwiched by the undoped GaAs layer 21 on the substrate side and the undoped Ga1-xAlxAs layer on the surface side.
Patent JP-S6394499-A (JP)
Title: Semiconductor memory device
Inventor: KUSHIYAMA NATSUKI
IPC: G11C11/409
Filed: 1986-10-07
Abstract: PURPOSE:To obtain a semiconductor memory device with high reliability by providing an internal voltage drop circuit generating a voltage VL lower than an external power voltage, bringing the level of a precharge voltage of a bit into to VL/2 and bringing one data write of a memory cell to a VL so as to attain low power consumption and high speed operation. CONSTITUTION:When an external power supply voltage Vcc is applied to a pad 24, the voltage is dropped into a voltage VL by an internal drop circuit 22 and fed to a memory cell array 21, a precharge power conversion circuit 22a and a self-plate power conversion circuit 22b. The output voltage of the circuits 22a, 22b is VL/2 and fed respectively to the source of a precharge transistor 39 of a bit line 36 and one end of a MOS capacitor 34 of a memory cell 32. In writing data '1' to the memory cell 32, the potential of the bit line 35 is at VL and the potential of the word line 37 goes to VL+VT and the voltage VL is charged in the capacitor 34 via the TR 33. At readout, the potentials of the bit lines 35, 36 are precharged to the VL/2 to turn on the TR 33.
Patent JP-S61118950-A (JP)
Title: Frittable getter device
Inventor: SHIBATA SHIGEKAZU
IPC: H01J7/18
Filed: 1984-11-14
Abstract: PURPOSE:To reduce the amount of gas discharged from a getter device and improve the sorption of the getter by preparing a case accommodating the getter and a getter supporter from a chromium alloy treated in a wet hydrogen furnace at high temperature and performing this treatment during manufacturing of the getter device. CONSTITUTION:A frittable getter device 19 is attached to a color picture tube consisting of a panel 1, a funnel 2 and a neck 3. The getter device 19 is constituted from a case 21 accommodating a getter 22 and a getter supporter 20 supporting the case 21. The case 21 and the getter supporter 20 are formed from a chromium alloy prepared through treatment in a wet hydrogen furnace at a given high temperature. By thus performing the treatment in a wet hydrogen furnace at high temperature during manufacturing of the getter device 19, the amount of gas discharged from the getter device 19 is reduced and the sorption of the getter 22 is increased.
Patent JP-H1180937-A (JP)
Title: Formation of thin film, thin film forming device and evaporating source crucible
Inventor: CHIBA KAZUNOBU
IPC: C23C14/30
Filed: 1997-09-03
Abstract: PROBLEM TO BE SOLVED: To provide a thin film forming method suppressing splashes in a vacuum depositing stage, making the film forming rate high and perverting deterioration in the quality of thin film caused by splashes, to provide a thin film forming device and to provide an evaporating source crucible. SOLUTION: In a method for forming thin film on a magnetic tape, a magnetic disk or the like having a stage in which an evaporating source crucible 10 at least contg. impurity oxide is used, and a thin film forming material 9 such as magnetic metals, magnetic alloys, magnetic compds. or the like is melted to evaporate in a vacuum to form thin film contg. the thin film forming material 9 on a supporting body 3a, the thermal conductivity of the main raw material of the evaporating source crucible 10 is regulated to <=30J.s<-1> .m<-1> .K<-1> . The main raw material of the evaporating source crucible 10 preferably contains at least one kind among zirconia, calcia and spinel.
Patent JP-H05208931-A (JP)
Title: Method for synthesizing alkyl tertiary-alkyl ether with zeolite catalyst
Inventor: JIYON FUREDERITSUKU NAIFUTON
IPC: C07B61/00
Filed: 1992-08-17
Abstract: PURPOSE: To obtain alkyl tertiary alkyl ether from a tertiary alcohol and primary alcohol at a high conversion rate and selection rate by a continuous process.  
     CONSTITUTION: This process for producing the alkyl tertiary alkyl ether from the tertiary alcohol and primary alcohol in the presence of a catalyst is characterized in that a crystalline aluminosilicate faujasite Y-type zeolite which has been treated with hydrogen fluoride is used as the catalyst. 
     COPYRIGHT: (C)1993,JPO
Patent JP-H08102905-A (JP)
Title: Television receiver with memory function
Inventor: HANATANI HIROYUKI
IPC: H04N5/44
Filed: 1994-10-03
Abstract: PURPOSE: To obtain a television receiver with a memory function in which a viewer can acquires up-to-date information within a desired time among huge broadcast programs without complicated operation. CONSTITUTION: The television receiver 1 with a memory function is made up of a remote control section 2, a display section 3 displaying a video image and information, a user replacement disk 4 able to be replaced, and a broadcast signal received via a reception antenna 5, a CATV receiver 6 and a tuner 7 is encoded by an encoder 9 and stored in a large capacity memory 11 and displayed on the display section 3 via a decoder 14 and a switch-/IO 15. Since the viewer views a desired broadcast program for a convenient time of the viewer by setting a reproduction time, even a busy viewer acquires quickly and easily up-to-date information without troublesome operation.
Patent JP-S6298532-A (JP)
Title: Manufacture of low pressure metallic vapor discharge lamp
Inventor: INOUE AKIHIRO
IPC: H01J9/24
Filed: 1985-10-25
Abstract: PURPOSE:To make it possible to homogeneously heat the entire peripheries of fused areas so as to reduce the occurrence of cracks by forming opening in glass tubes and then fusing the openings to make the discharge paths of the glass tubes continuous with each other through the connection hole formed by fusion. CONSTITUTION:The sides walls of glass tubes 1 and 1 located near their closed ends are heated with a burner 5. After the side walls are softened, a gas preferably an inactive gas is blown into the tubes 1 through exhaust tubes 4 and 4. As the result, the internal pressure of the glass tubes 1 and 1 increases and the softened areas are broken by gas pressure to form outwardly protruding openings 6 and 6. Next, after the glass tubes 1 and 1 are located in such a manner that their openings 6 and 6 are in contact with each other, the openings are fused by heating with a burner 7. As the result, the glass tubes 1 and 1 having almost U-shaped discharge paths 2, are connected together at the ends and become continuous with each other through a connection hole 8 formed by fusion. Therefore, a light-emitting tube 9 having a long curved discharge path is formed.
Patent JP-H0558389-A (JP)
Title: Tendem propeller mounting structure for ship
Inventor: IRIONO YASUSHI
IPC: F02B61/04
Filed: 1991-08-27
Abstract: PURPOSE:To ensure a cushioning effect against a propeller hit through simple constitution and to suppress incurrence of a speed loss. CONSTITUTION:In the tandem propeller mounting structure of an outboard motor 10 wherein a plurality of propellers 16 and 17 are mounted around a propeller shaft 13, at least one propeller of the total propellers 16 and 17 has no damper for an exclusive use for a propeller and is coupled to a damper 23 shared with adjoining other propellers.
Patent JP-S60131935-A (JP)
Title: Production of permanent magnet alloy
Inventor: TAWARA KAZUNORI
IPC: C22C19/07
Filed: 1983-12-19
Abstract: PURPOSE:To produce a permanent magnet consisting of a Cu substn. type multi- element rare earth intermetallic compd. having excellent characteristics at a low cost by melting rare earths in the form of oxide and the balance in the form of metal together with a reducing agent to manufacture a base alloy contg. no Cu, plating Cu to the solidified base alloy and subjecting the alloy to diffusion with heating. CONSTITUTION:Raw materials are mixed by melting rare earths such as Sm, Ce, Pr, etc. in the form of inexpensive oxide together with a reducing agent such as Ca, Mg or the like and the other components except Cu in the form of metallic powder or partly oxide in the stage of producing a Cu substn. type multi-element rare earth intermetallic compd. having the compsn. expressed by the formula (1). The mixture is put in a reaction vessel and is brought into reaction at 1,000- 1,300 deg.C to reduce the oxide of the rare earths and other metals. The cake alloyed by the mutual diffusion is thus manufactured. The cake is roughly ground and Cu is then plated on the surface. The plated cake is heated at 800-1,250 deg.C to diffuse Cu and thereafter the cake is pulverized, oriented and molded, by which the permanent magnet having high performance is produced at a low cost.
Patent JP-H0689066-A (JP)
Title: Thermal fixing device
Inventor: YAMASHITA KEITARO
IPC: G03G15/20
Filed: 1992-09-08
Abstract: PURPOSE:To obtain a compact thermal fixing device capable of a thermal fixing at low temperature and having high heat efficiency. CONSTITUTION:A heating roll 21 formed of a metallic material having excellent heat conductivity to be a hollow cylinder and incorporating a heat source 26, and a pressure roll 22 formed of a rigid material to be columnar or cylindrical are provided so that they can rotate in a press-contact state; and a recording material 32 holding a toner image 31 on its surface is allowed to pass between the rolls 21 and 22 in a state where the front surface and the back surface of the recording material 32 are press-contacted by the rolls 21 and 22; then the linear pressure of the rolls 21 and 22 at the time of fixing is kept 0.1-2kg/cm, and the fixing is performed.
Patent JP-H10167850-A (JP)
Title: Production of joined body of aluminum nitride substrate and joining aid used for same
Inventor: OOHASHI KUROAKI
IPC: H01L21/683
Filed: 1997-08-21
Abstract: PROBLEM TO BE SOLVED: To join aluminum nitride(AlN) ceramic substrates to each other without practically interposing a third layer between the joining interfaces of the substrates. SOLUTION: A joining aid 3 is interposed between AlN substrates 1, 2 to be joined and they are heated at the m.p. of the joining aid or above to melt the joining aid and to convert AlN particles into a liq. phase near the interface parts between the molten joining aid and each of the substrates. The joining aid is then exhausted by heating the joining aid and the substrates in a higher temp. range and below the sintering temp. of the substrates.
Patent JP-H0287540-A (JP)
Title: Inspection of semiconductor wafer
Inventor: TAKAHASHI YASUSHI
IPC: H01L21/66
Filed: 1988-09-22
Abstract: PURPOSE:To classify non-defective units and defective unit, and enable re- measurement and re-estimation without damaging elements by putting a mark for recognition on a surface on which an semiconductor circuit element is not formed, i.e., the rear of a semiconductor wafer, after measuring electric characteristics. CONSTITUTION:A semiconductor integrated circuit which is judged to be defective after measuring electric characteristics is subjected to driving of inker spot 5' on the surface on which elements are not formed, i.e., the rear of a semiconductor wafer 1. In this case, the element itself is not damaged, and the later re-measurement and re-estimation are enabled.
Patent JP-H0690021-A (JP)
Title: Pn-junction type light emitting diode using silicon carbide
Inventor: FUJII YOSHIHISA
IPC: H01L33/20
Filed: 1992-09-08
Abstract: PURPOSE:To realize a brighter pn-junction type light emitting diode of silicon carbide by laminating multiple silicon carbide semiconductor layers on a silicon carbide substrate and then providing a part of its top surface with an annular ohmic electrode. CONSTITUTION:A pn-junction type light emitting diode includes an insulating film layer 15, and a silicon carbide top face layer 14 and an electrode 16 form an ohmic contact at the periphery of insulating film layer, not at the central part of silicon carbide top face layer. With the electrode 16 provided not at the central part of element but near the end face, the light emission from the light emitting area near the end face will not be obstructed by an upper electrode, and further, that from direct under the electrode can be, with an emission path shown with an arrow, effectively taken out from the surface and end face into the outside, for a high luminance of light emitting diode. As an insulating film layer material, silicon dioxide (SiO2) or silicon nitride (Si3N4) is used.
Patent JP-H02128620-A (JP)
Title: Working vehicle
Inventor: TAKAGI IZUMI
IPC: A01B71/02
Filed: 1989-09-14
Abstract: PURPOSE: To make a clearance between an engine output axis and the ground surface and the centroid of a vehicle proper by directly connecting an engine crank shaft and the input shaft of a working tool with a single belt device so as to realize vertical belt movement without interference with a transaxle. CONSTITUTION: In order to drive the working tool by a single V belt 74 connected to the engine crank shaft 76, an interval 80 is provided and the belt 74 passed from the shaft 76 to the input shaft of the working tool under a transaxle housing 82. In order to make the pulley 94 of the shaft 76 as close as possible to the housing 82, the shaft 76 is made as close as possible to a housing enter line 92, an engine 70 is connected to the transaxle as close as possible to the ground surface, and the centroid of the vehicle is lowered while maintaining a proper interval between the pulley 94 and the ground surface.