baber/WOPTO huggingface dataset:
Patent JP-H02113535-A (JP)
Title: Manufacture of semiconductor device
Inventor: SATO MASAHARU
IPC: H01L21/331
Filed: 1988-10-22
Abstract: PURPOSE:To reduce the area of a base region and an emitter region, and decrease junction capacitance and base resistance by forming a graft base region only in a first window, forming the base region in a second window smaller than the first window, and forming the emitter region in a third window smaller than the second window. CONSTITUTION:A fourth insulating film 9, a third insulating film 8 a second insulating film 7, a first polycrystalline silicon film 6 and a first insulating film 5 of an emitter region are eliminated, and a first window is opened. The nineth insulating film 18 is isotropically etched; by using the film 18 as a mask, a seventh insulating film 12 is also isotropically etched, thereby opening a second window; thus an active base region 17 is exposed. A graft base region 14 is formed by diffusing impurity into an epitaxial layer 8 from a second polycrystalline silicon film 13 formed in the first window, and the region 14 is formed only in the inside of the window. Thereby, a base region 17 and an emitter region 20 can be reduced, and junction capacitance and base resistance are decreased.
Patent JP-H04144177-A (JP)
Title: Optical fiber amplifier
Inventor: KIKUSHIMA KOJI
IPC: H01S3/0915
Filed: 1990-10-05
Abstract: PURPOSE:To enhance an efficiency to be converted to optical power of an output light after a signal light is amplified by the optical power of pumping light by again returning the excess pumping light which cannot be fully used for pumping to a rare earth element fiber via a reflecting mirror, and using it for exciting. CONSTITUTION:A reflecting mirror 6 is provided. Discarded excess pumping light is returned to a rare earth element fiber 3 made of erbium, etc., by the mirror 6, and again used as pumping light 7. Or, a reflecting mirror 16 is provided. The discarded excess pumping light is returned to a rare earth element fiber 13 made of erbium, etc., by the mirror 16, and again used as pumping light 17. Accordingly, an efficiency of converting the optical power of the light into that of an output light after amplifying a signal light can be enhanced.
Patent JP-H05106435-A (JP)
Title: Cooling device for engine
Inventor: ISHIKAWA TERUAKI
IPC: F01P7/14
Filed: 1991-10-16
Abstract: PURPOSE:To suppress generation of a cavity in a water pump while securing a good thermal conductivity in a water jacket owing to a subcooling boiling. CONSTITUTION:While the cooling water is circulated forcibly by a water pump 2 in a cooling system which consists mainly of a water jacket in an engine main body 1 and a radiator 3, a control unit 17 increases or decreases the pressure inside the cooling system through a three-way electromagnetic valve 14, so as to form this cooling device. And the control unit 17 to control the three-way type electromagnetic valve 14 controls the pressure in the cooling system by using the utilizing NPSH (net positive suction head) of the water pump 2 which is found from the cooling water temperature, the cooling system internal pressure, and the engine rotation frequency, as the control elements.
Patent JP-S62124646-A (JP)
Title: Optical magnetic memory device
Inventor: FUJI HIROSHI
IPC: G11B11/10
Filed: 1985-11-25
Abstract: PURPOSE:To allow either face of a magnetic disk to reproduce information data by providing a circuit obtaining both inverted and noninverted outputs from the output of a comparator comparing reproduced signals and selecting the output based on a recording face recognition signal and other control signals. CONSTITUTION:The reproduced signal 10, which is reproduced by a reproduction head 1 and amplified by an amplifier 2, is led to the comparator 4 and a comparison voltage detection circuit 3. The compared result in the comparator 4 is outputted as a digital signal, and the signal 12 is led to the one input of a switching circuit 6. Simultaneously a signal 13 whose polarity is inverted through an inverter 5 is led to the other input of the switching circuit 6. It switches two signals corresponding to each face according to the control signal such as the recording face recognition signal, thereby obtaining an information detection signal 14. It is transmitted to a data demodulator circuit, and information data is reproduced.
Patent JP-S62125349-A (JP)
Title: Silver halide color photographic sensitive material
Inventor: KAWAGISHI TOSHIO
IPC: C07D487/04
Filed: 1985-11-27
Abstract: PURPOSE:To enhance light fastness of a color image by incorporating a specified pyrazoloazole type coupler in a silver halide emulsion layer or its adjacent layer. CONSTITUTION:The silver halide emulsion layer or its adjacent layer contains one of the pyrazoloazole type coupler represented by formula [1] in which each of R<1> and R<2> is H or a substituent, at least one of both is a group containing a group represented by formula [II] or [III], and the ones each having R<3> being H are especially preferable, and X is H or a group to be released by the coupling reaction with the oxidation product of an aromatic primary amine color developing agent.
Patent JP-H0625248-A (JP)
Title: Catalytic preparation of crosslinking-nitrogen-containing compound
Inventor: SUTEIIBUN UEIN KINGU
IPC: B01J21/00
Filed: 1991-09-19
Abstract: A process for preparing bridged nitrogen-containing compounds which comprises contacting a cyclic nitrogen-containing compound reactant with a mixed metal oxide catalyst under conditions effective to produce the bridged nitrogen-containing compound.
Patent JP-S63119644-A (JP)
Inventor: KONDO SHOHEI
IPC: A23G3/34
Filed: 1986-11-10
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-2000090695-A (JP)
Title: Semiconductor storage device
Inventor: OKAMURA JUNICHI
IPC: G01R31/28
Filed: 1999-09-21
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency of screening remarkably by applying voltage stress to all word lines or word lines in numbers or more selected at the time of normal operation at a stretch through a word-line driver circuit on the basis of a voltage-stress test control signal. SOLUTION: When a DRAM is brought to an operable state at the time of a burn-in and a voltage-stress test control signal at an H level is input to a pad 32, all complementary type internal address signals reach the H level by a control circuit 34, all output signals from a word-line selecting circuit 40 reach an L level, and all word lines WL are driven. Since the control circuit 34 controls the internal address signals so as to select lines more than lines selected in response to external address signals at the time of normal operation on the basis of the voltage-stress test control signal input through the pad 32 not used at the time of normal operation from the outside, the control circuit 34 drives lines more than lines selected at the time of normal operation.
Patent JP-H06114659-A (JP)
Title: Main spindle head supporting device of machine tool
Inventor: OGASAWARA YUZO
IPC: B23Q1/70
Filed: 1992-10-06
Abstract: PURPOSE:To reduce influence of the thermal deformation of a tool itself upon the processing accuracy by locating a nut below the internal taper surface which is for the spindle to hold the tool. CONSTITUTION:A main spindle head 6 is deformed by the heat emitted by a bearing 8, and the bottom Bo moves upward by an amount DELTAL with the top A as the reference to take a position B1. When the spindle head 6 remains out of thermal deformation, on the contrary, the position C0 of the tip of a tool 10 is moved DELTAl downward by the thermal deformations of the spindle and tool and takes the position C1. As a result, the moving amount of the tip of the tool 10 thermally expanded relative to the top A of the nut 5 becomes DELTAl-DELTAL. In this manner, the thermal expansions of the spindle and tool are set off with thermal deformation of the spindle head 6.
Patent JP-H06117811-A (JP)
Title: Monitoring circuit of amount of incident light for laser length measuring apparatus
Inventor: NAKAGAWA NOBUYUKI
IPC: G01D5/36
Filed: 1992-10-06
Abstract: PURPOSE:To positively detect whether the measuring state is proper by processing inputs of a plurality of sine wave signals output from a length measuring apparatus with 90 deg. phase difference by the addition/subtraction, squaring and addition, and outputting a signal of the square root. CONSTITUTION:A subtracter circuit 20a and an adder/subtracter circuit 20b operate, when receiving signals Ia, Ib and Ia-Ic output from a length measuring apparatus as input signals, Ia-Ib and 2Ic-(Ia+Ib) and generate sine wave signals X=asintheta, Y=costheta, respectively. Squaring circuits 20c, 20d having inputs of the sine wave signals output signals of the square X<2>, Y<2>. A signal of a sum value which is an output of an adder circuit 20e adding the square signals X<2>, Y<2> is x<2>+y<2>=a<2>. A square root circuit 20f operates the square root of the sum value signal a<2>. A final signal of the square root is eventually the amplitude (a) of the input sine wave signals. Since the final signal (a) output from the monitoring circuit 20 includes no function of theta which causes changes, the output signal is not varied by the change of the input signal, making it possible to obtain stable output signals.
Patent JP-H05208199-A (JP)
Title: Method for controlling scale in device for usein stratum containing petruleum and in relation thereto
Inventor: DANIERU EICHI EMONZU
IPC: C08F20/06
Filed: 1992-10-06
Abstract: PURPOSE: To provide a method for removing scale from underground petroleum- contg. strata or an apparatus used for pouring high brine scale forming water into these strata or preventing the deposition of the scale in these strata and the apparatus.  
     CONSTITUTION: The high brine scale forming water is treated with an acrylic acid homopolymer or acrylamide homopolymer or a copolymer of the acrylic acid and acrylamide of the amt. to suppress the scale which is so modified as to contain up to about max. 30% amide (2 to 6C alkyl) phosphinic acid, its alkaline metal salt, ammonium salt and amine salt and has a mol.wt. within a range of 1,000 to 50,000. 
     COPYRIGHT: (C)1993,JPO
Patent JP-H02115661-A (JP)
Title: Thermistor type safety device
Inventor: FUJIMOTO YOSHITSUGU
IPC: F24H9/20
Filed: 1988-10-24
Abstract: PURPOSE:To detect temperature at the same positions of a thermistor and a safety device, to accurately control conduction and to improve mounting operability by integrating the thermistor for detecting storage hot water temperature with the safety device for stopping the conduction of a storage hot water heater at the time of malfunction. CONSTITUTION:The part of the base 7 of a safety device 4 is cut out, and a thermistor 2 is molded with resin 8 in the space. A thermistor integral safety device 6 is mounted to a heater flange 3 thereby to detect temperature at the same position as that of the safety device to obviate the difference of the detected temperatures and response. Thus, an accurate current leakage can be controlled.
Patent JP-H07118733-A (JP)
Title: Production of metal matrix composite small in surface flaw and having high thermal conductivity
Inventor: YAMAMOTO AKIO
IPC: C22C38/16
Filed: 1993-10-26
Abstract: PURPOSE:To provide a method for producing a metal matrix composite small in surface flaws and having high thermal conductivity. CONSTITUTION:An allay having an average compsn. contg. <=0.1% C, <=2% Si, <=2% Mn, 30 to 65% Cu and 4 to 9% Al, furthermore contg., at need, one or >= two kinds among Cr or/and Mo, Nb, B, Ti and V, and the balance Fe with inevitable impurities is subjected to forging and/or hot rolling in the temp. range of 600 to 1100 deg.C. In this way, a metal matrix composite having a composite metallic structure of crystalline grains essentially consisting of Cu and Al and crystalline grains essentially consisting of Fe and Al, small in surface flaws and having high thermal conductivity is produced. Thus, the metal matrix composite having high thermal conductivity can be produced at a high yield without generating surface flaws. As a result, in addition to the reduction of the production cost of the stock, the stage of surface refining for the metal matrix composite can be simplified, and its low cost can be attained.
Patent JP-H06118946-A (JP)
Title: Electronic percussion instrument
Inventor: WATANABE KUNIHIKO
IPC: G10H1/30
Filed: 1992-10-06
Abstract: PURPOSE:To provide the electronic percussion instrument on which the mode of a roll can be indicated by only an action of beating a pad and a roll with rich expression can easily be made. CONSTITUTION:This electronic percussion instrument is provided with a beating detecting means 21 which detects beating operation from a shock to the pad and outputs corresponding real note data RN, a successive beating deciding means 22 which decided whether the pad is successively beaten according to the time intervals of the real note data supplied from the detecting means 21, a delay note generating means 23 which generates delay note data AN when the decision means 22 decides the successive beating, an adding means 24 which adds the delay note data AN to the real note data RN and outputs note data ND for the roll, and a musical sound generating means 25 which generates a musical sound corresponding to the note data ND supplied from the adding means 24.
Patent JP-H05105811-A (JP)
Title: Flame-retarding composition for polyurethane
Inventor: TOKUYASU NORIAKI
IPC: C08L75/00
Filed: 1991-10-16
Abstract: PURPOSE:To obtain the title composition which is a lowly viscous liquid and can impart flame retardancy to polyurethar even when used in a small amount by mixing a flame-retarding organophosphorus compound with a tribromoneopentyl alcohol and an antioxidant in a specified ratio. CONSTITUTION:0-5wt.% antioxidant is added to a mixture comprising 50-99wt.% flame-retarding organophosphorus compound and 50-1wt.% tribromoneopentyl alcohol. Desirable examples of the organophosphorus compounds include a halogenated phosphate, an oligomer thereof, a halogenated phosphonate, an oligomer thereof, a nonhalogenate phosphoric ester, an oligomer thereof and a mixture thereof. Desirable examples of the antioxidants include hydroquinone compounds of the formula (wherein R1 to R4 are each hydrogen or 1-4C alkyl) and/or organophosphorus (III) compounds.
Patent JP-H07239822-A (JP)
Title: Method for judgment of whether data packet has been addressed to computer system or not and network controller
Inventor: GUREN GIBUSON
IPC: G06F15/163
Filed: 1994-11-01
Abstract: PURPOSE: To reliably discriminate whether a specific data packet is to be processed by this comparator system or not by giving a 1st signal if one of addresses in a data packet coincides with an address in a computer system. CONSTITUTION: A RECEIVE LED indicator 18' shows that computers 12', 14' and 16' on a network 10' has received data. A RECEIVE ADDRESS MATCH LED indicator 20 shows a receiving operation which passed an IEEE identity function about the computers 12', 14', 16' on the network 10'. Following this, first whether or not a packet is received is decided and then if the answer is yes, whether or not an address coincides with one in a system is decided. If the answer is no, the light of the LED indicator 18' is turned on. ON the other hand, if the answer is yes, the light of the LED indicator 20 is turned on.
Patent JP-H07145379-A (JP)
Title: Method for producing coke and apparatus therefor
Inventor: SATO YOJI
IPC: C10B57/02
Filed: 1993-09-30
Abstract: PURPOSE:To improve the quality of coke by burning a combustible gas comprising volatiles remaining in a semicoke to heat and bake a semicoke layer uniformly in the radial direction. CONSTITUTION:Volatiles remaining in an amt. of about 1-5% in a semicoke are burned, as a combustible gas, in a prechamber 10 with a controlled amt. of air supplied from an air supply apparatus 16. A heated coke zone appears by the action of air flowing from an air supply part 13 in the top space 11 toward near the central zone of the prechamber 10 and air flowing from an air supply part 25 at the peripheral part. In addition, a burning zone appears by the action of burning of the combustible gas generated, causing the semicoke to be heated, baked, and carbonized uniformly. The temp. rise near the central zone is accelerated by the radiation heat from flame, the convection heat from the burnt gas, etc., and thus becomes equivalent to the temp. rise at the peripheral zone, eventually enabling uniform temp. rise in the radial direction of the semicoke layer.
Patent JP-H01115501-A (JP)
Title: Machine tool
Inventor: JINNO KAZUO
IPC: B23D3/00
Filed: 1987-10-26
Abstract: PURPOSE:To always perform the spring machining of a three-dimensional curved surface at a predetermined rake angle by fixing a cutting tool to the spindle of a machining center so as to be relatively moved in triaxial directions and as well suitably rotating the spindle. CONSTITUTION:A tool holding device 4 is fitted into a spindle 1 through a spindle taper 3. The tool holding device 4 comprises a tool holding device main body 7 fixed in a rotational direction by means of a drive shaft 6 with respect to a spindle head 2 supporting a central shaft 5, a supporting member 8 fixed to the central shaft 5, a rotary shaft 9 supported by the supporting member 8, and a cutting tool fixing base 10 serving as a tool fixing base. And further, the device 4 is driven onto the drive shaft 6 side, and it is constituted with a planetary gear device 11 for keeping a rotational position between the respec tive main members, a gear series 14, and a servo motor 15. Therefore, in this machine tool hereat, irrespective of the rotation of the spindle 1, the cutting tool fixing base 10 can be rotated around an axis rectangular to the central shaft of the spindle 1 so that the spring machining of a three-dimensional curved surface can be always performed at a predetermined rake angle.
Patent JP-H01112087-A (JP)
Title: Ball with stem for ball valve and ball valve employing said ball
Inventor: OCHIAI GIICHI
IPC: F16K11/087
Filed: 1987-10-23
Abstract: PURPOSE:To facilitate switching of a flow passage and to perform branch to multiway and collection from multiway through a single valve, by a method wherein the center of the opening of the one of a plurality of openings formed in a ball with a stem tor a ball valve is coincided with that of the rotary stem of the ball. CONSTITUTION:A lower opening 6 is formed in the lower part of a valve body 5, and opening parts 7 and 8 are formed on the left and the right. A through- hole 10 bent in a 90 deg. arc from below is formed in a ball 9, and the ball 9 is coupled to a stem 11 and is rotated by means of a handle 12. With the handle 12 rotated in a 180 deg. arc, the ball 9 is rotated in a 180 deg. arc along with the rotation of the handle, and the through-hole 10 intercommunicates the left opening part 7 and the lower through-hole 6. As noted above, a fluid flow passage can be switched to both the left and the right. The opening parts 7 and 8 are not limited to two, but a number of opening parts may be formed.
Patent JP-S61150940-A (JP)
Title: Automatic feeding device for ptp sheet
Inventor: MIHARA HIROSHI
IPC: B65H3/08
Filed: 1984-12-21
Abstract: PURPOSE:To make possible to feed a PTP sheet without accompanying up-and- down jumping and noise, by providing a sucking disk having a small stroke which rises a little, sucks a preparatory PTP sheet, and feeds it on the line, when three is no PTP sheet on a conveying line. CONSTITUTION:When there is no PTP sheet conveyed by attachments 31 and 31a on a guiding board 25, operate an air cylinder 55 a little before a sucking disk 54 reaches the highest position, and make a sucking disk holder 50 ascend a little bit through a rod 57 and a holder 58. Accordingly, the sucking disk 54 touches and sucks a preparatory PTP sheet S1 which is contained in a magazine 33. Then, owing to the rotation of a cam 42, the sucking disk 54 comes down and further descends leaving the PTP sheet S1 on the guiding board 25. After that, make the operating bar 56 of the air cylinder 55 retreat, and then the PTP sheet S1 is conveyed to the same direction by the sheetless attachments 31a and 31b which move to the direction.
Patent JP-H0576919-A (JP)
Title: Method for guiding rolled stock
Inventor: SUZUKI TAKAYA
IPC: B21B39/14
Filed: 1991-09-20
Abstract: PURPOSE:To shorten the time for moving roller guides in accordance with the pass line and time for adjusting the interval between guide rollers in accordance with this pass line and also to enable wide adjustment of the interval between the roller guides from narrow width to wide width. CONSTITUTION:At least one pair of two roller holders 2, 3 of which each is individually movable between one end side and the other end side in the axial direction of rolling roll is used in this method. By individually moving each of the roller holders 2, 3 to a required position in the axial direction of rolling roll and adjusting the interval between the pass line of the guide roller 4 and the guide roller 4, the change of rolled size is executed.
Patent JP-H06117146-A (JP)
Title: Manufacture of post for dome type tent
Inventor: SAIGA ISAMU
IPC: E04H15/20
Filed: 1992-10-07
Abstract: PURPOSE:To obtain a warped support-like tube in small diameter by a method wherein a bag-like cloth is woven so that dry heat shrinkage ratio at a specified temperature of warps to be arranged on the contraction side of a post for a dome type tent becomes higher at a specified rate than that of the warps to be arranged on the expansion side of the post, and the woven cloth is coated with waterproof synthetic resin and is treated by heating at a specified temperature. CONSTITUTION:A bag-like cloth is woven so that dry heat shrinkage ratio at 150 deg.C of warps to be arranged on the contraction side of a post for a dome type tent becomes higher by 3% or more than that of the warps to be arranged on the expansion side of the post for the dome type tent. Then, the bag-like cloth is coated at least on its one side with waterproof synthetic resin or rubber and after that, heat treatment at 100-220 deg.C is applied. Thereby, a warped support-like tube in small diameter such as 100mm or below can be obtained.
Patent JP-H09111402-A (JP)
Title: Reinforcing bar with high machinability and tunnel boring method
Inventor: MIKI TAKESHI
IPC: C22C38/60
Filed: 1995-10-17
Abstract: PROBLEM TO BE SOLVED: To obtain a reinforcing bar remarkably improved in machinability and a tunnel boring method for boring a reinforced concrete using it in order to solve problems that the boring of reinforced concrete is extremely inefficient because of high resistance of a reinforcing bar, and also machinable carbon fiber reinforcement is extremely limited in application because it is too expensive. SOLUTION: This reinforcing bar consists of, by weight, <=0.5% C, <=2.0% Si, 0.2-1.5% Mn, <=0.1% P, 0.05-0.6%, in total, of S and Pb, 0.002-0.015% N, and the balance iron with inevitable impurities and contains, if necessary, 0.03-0.3%, in total, of at least one element among Ca, Te, and Bi. It is further desirable to incorporate Al by <0.01% and to regulate ferritic grain size to No.5 or below. This invention also relates to the boring method of a reinforced concrete using the above reinforcing bar.
Patent JP-H01112543-A (JP)
Title: Stamper for optical disk
Inventor: OMORI KENJI
IPC: G11B7/26
Filed: 1987-10-27
Abstract: PURPOSE:To obtain a stamper having satisfactory weather resistance and durability by using ceramics having specified toughness and heat conductivity. CONSTITUTION:Ceramics having >=4MN/m<3/2> fracture toughness and >=0.07cal/ cm.sec. deg.C heat conductivity is used as a matrix. The ceramics is based on SiC, Si3N4 or AlN. The ceramic matrix is successively subjected to precision cleaning, precision polishing, coating with a photoresist, laser beam cutting, development and ion etching to form fine ruggedness for reproducing a tracking guide or signal information.