baber/WOPTO huggingface dataset:
Patent JP-S5763910-A (JP)
Title: Differential amplifying circuit
Inventor: NAKAJIYOU TAKAFUMI
IPC: H03F3/45
Filed: 1980-10-06
Abstract: PURPOSE:To decrease the number of repeating terminals for connections between an amplifying circuit and external elements, by using only one frequency selecting circuit. CONSTITUTION:A differential amplifier 21 amplifies the difference between an input signal supplied to a terminal 26 and a reference DC voltage applied to a terminal 27. The uninverted output of the amplifier 21 is amplified by the amplifier 30 of a frequency selecting circuit 22. The circuit 22 is provided with capacitors externally. An amplifier 23, on the other hand, is applied with the reference DC voltage from the terminal 27. The amplifier 23 has the same gain as the inphase gain of the amplifier 21 and its output is supplied to an amplifier 24. The amplifier 24 has the same DC input and output characteristics with the amplifier 30. Outputs of the amplifiers 30 and 24 are supplied to a differential amplifier 25, which amplifies the difference between those two inputs to send a pair of an inverted and an uninverted output. Consequently, one passive element part in a frequency selecting circuit is required to decrease the number of external elements, such as the capacitors, thereby decreasing the number of repeating terminals for connections between the amplifying circuit and the external elements.
Patent JP-H09320641-A (JP)
Title: Rechargeable battery pack
Inventor: NAKASHITA TAKAO
IPC: G01R19/165
Filed: 1996-05-31
Abstract: PROBLEM TO BE SOLVED: To detect beforehand the stop of the supply of voltage current from a secondary battery to load side equipment by outputting a pre-end output before an overcharge/overdischarge detecting and overcurrent control circuit outputs a signal to turn off a switch circuit. SOLUTION: In a rechargeable battery pack 1, a pre-end signal output circuit 5 produces a pre-end signal output if a secondary battery voltage V1 drops below a certain detection voltage V2, and the pre-end signals are kept yielded until an overcharge/overdischarge and overcurrent control circuit 3 detects that the secondary battery voltage V1 has dropped below an overdischarge detection voltage V3. A switch circuit 4 is operated by an output signal of the overcharge/overdischarge and overcurrent control circuit 3 to stop the discharge of a secondary battery, so that load-side equipment can perform action such as saving data.
Patent JP-S622878-A (JP)
Title: Stall protecting device of dc motor
Inventor: SUGIMOTO NORIMASA
IPC: H02P7/06
Filed: 1985-06-27
Abstract: PURPOSE:To protect a DC motor against an excess stalling current by forcing a field if the excess stalling current flows and tripping or reversely inching a main circuit power source when causing a locked state to be held for a long period. CONSTITUTION:A timer 19a outputs a time (t) that a zero speed continues, and an integrator 20 integrates the square value I<2> of a main circuit current I for a time (t). A stall controller 23 applies a forcing signal Sf to a field power source controller 24 to strengthen the field if a deviation signal between the output of the integrator 20 and the output of a stall reference setter 22 falls within a low limit value. When the locked state continues so that the signal arrives at the upper limit value, it outputs an alarm signal Sa and a main circuit power source trip signal St or reverse inching signal SR. Thus, a DC motor can be protected against an excess stalling current at the locking time.
Patent JP-S5565417-A (JP)
Title: Clip type convertor
Inventor: HAYASHI EIJI
IPC: H01F38/28
Filed: 1978-11-10
Abstract: PURPOSE: To detect an abnormal air gap on the clip surface of a clip type convertor automatically when such a gap occurs outputting an alarm signal in order to warn the user of the abnormality thereof.  
     CONSTITUTION: A pair of iron cores CR 1  and CR 2  made of magnetic materials are arranged in a ring shape, and a slip portion 1 is formed, using the clip surface S. The secondary winding N 1 , N 2  and the tirtiary winding N s  are wound on to one or both of the iron cores CR 1 , CR 2 . This clip portion 1 is connected to a case 3 containing LPFF 1 , BPFF 2 , comparator C, transmitter O, indicator D and alarm indicator A by a code 4 the clip portion sneds a current in proportion to the measured current to the indicator D in a normal air gap state, and automatically detects an exciting current from the transmitter O by means of the comparator C if the abnormal air gap occurs on the clip surface, and transmits an alarm signal to display it on the alarm indicator A. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5261787-A (JP)
Title: Non-linear resister vs. voltage
Inventor: EDA KAZUO
IPC: H01C7/10
Filed: 1975-11-18
Abstract: PURPOSE: A non-linear resistor vs. voltage suitable for absorbing element of surge wherein voltage limitting characteristic, surge resisting quantity, pulse response etc. are improved by means of sintering by addition of specialimpurities to ZnO. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S621824-A (JP)
Title: Manufacture of cold-briquetted ore
Inventor: FUKAMIZU KATSUYOSHI
IPC: C22B1/243
Filed: 1985-06-27
Abstract: PURPOSE:To mass-produce a cold-briquetted ore of irregular shape inexpensively by pelletizing a mixture of granular raw material, hardener and water by means of a large-size drum mixer and then by subjecting the pelletized material to stowage, curing and crushing. CONSTITUTION:The raw material, auxiliary material and harderner are discharged by each prescribed amount from an iron-ore material (fines) hopper 1, a CDQ coke hopper 2 and a cement hopper 3, respectively, which are piled up in layers on a belt conveyor 4 and conveyed so as to be fed into the drum mixer 5, where these materials are mixed while fed with water necessary for pelletization and hydrating reaction from a watering apparatus 11 so as to be pelletized. The pelletized material is stowed via a belt conveyor 6 by means of a shuttle conveyor 7 in a roofed yard 8 and piled up for prescribed days, which is crushed by a crusher 9 down to a prescribed grain size, followed by screening by means of a screen 10. After that, the oversizes are stockpiled as finished product and the undersizes are returned to the mixer 5.
Patent JP-H0433224-A (JP)
Title: Multi-contact sliding type switch
Inventor: NAKAO KENJI
IPC: H03M1/24
Filed: 1990-05-28
Abstract: PURPOSE:To clean the contact faces of fixed terminals and invariably maintain the conductive state by driving a drive device with a control device, and sliding a slide contact into contact with the fixed terminals at least once when the power is fed to the drive device and control device from a power source. CONSTITUTION:When the power is fed, the CPU of a microcomputer 8 first reads the present position (switch position) of a contact 6T from a position detecting device 5 as the reference position and stores it in a RAM. The CPU then feeds a signal to a motor via a motor interface to drive the motor 4 and rotates a conducting disk 6. The CPU receives a position signal from the position detecting device 5 while the conducting disk 6 is rotated, it judges whether the contact 6T is returned to the switch position, and it stops the drive of the motor 4 when the contact 6T is returned to the switch position. Then, the preset stationary action is performed.
Patent JP-S5262283-A (JP)
Title: Preparation of novel morpholine derivatives
Inventor: KOJIMA YOSHIYUKI
IPC: A61K31/5375
Filed: 1975-11-19
Abstract: PURPOSE: Morpholine derivatives of formula I (R 1  is H, lower alkyl; A is 2W3C alkylene; B is -CH 2 CH 2 -,-CH=CH-,-CH 2 O-;C 1 ,C 2  are 1,2-phenylene) and acid addition salts thereof; for example, 5-(morpholin-2-yl) methylidene10,11-dihydro-5H-dibenzo [a,d] cycloheptene. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S63302139-A (JP)
Title: Engine-driven generator
Inventor: HISAMA KATSUNORI
IPC: F02B77/13
Filed: 1987-06-03
Abstract: PURPOSE:To prevent rain water from entering into a sound shield type engine driven generator having a housing whose all surfaces are covered with panels, by communicating a hollow handle provided on the top panel of the housing, with the inside of the housing so that heat in the housing is discharged through heat discharge holes formed in the lower surface of the handle. CONSTITUTION:A sound shield type engine driven generator 1 has a housing 3 whose six surfaces are formed with panels, an engine 4 and a generator are arranged in parallel, and a cooling fan is provided to the engine on the side remote from the generator. In this arrangement, a carrying handle 14 is attached to a panel 2d which forms the top panel of the housing 14. The handle 14 is formed from a pipe having openings 14a at both ends, which are made to confront the inside of the housing 3 through holes 15 formed in the panel 2d. Further, two heat discharge holes 16 are formed in the lower surface of the center part 14d of the handle 14, and thereby heat in the housing 3 is discharged to the outside through the hole 15, openings 14a and the heat discharge holes 16.
Patent JP-H038238-A (JP)
Title: Electrodepositing method
Inventor: TOMITA SATORU
IPC: H01J9/227
Filed: 1989-06-01
Abstract: PURPOSE:To improve the electrodeposition quality and manufacturing process by immersing fixed-size substrates arranged with many segment electrodes in multiple rows and cut off for individual rows in the post-process in an electrodeposition liquid together with mating electrodes, and electrodepositing phosphor grains. CONSTITUTION:Mating electrodes 16 arranged face to face in parallel with segment electrodes 11 of fixed-sized substrates 10 set on rotors 12 and applied with the voltage across them are provided on the lower faces of rotors 12. The electric field for electrodeposition is formed between the electrode 16 on the upper side and the electrode 11 on the lower side between rotors 12. The relative movement between the substrates 10 and an electrodeposition liquid 15 is performed by the movement of the substrates 10 by the rotation of the rotors 12. Phosphor grains are concurrently stuck on the electrodes 11 of multiple substrates 10 by electrodeposition. Most of the processes of segment electrode formation, insulating layer formation, fluorescent screen formation and bulb formation are performed while the substrates 10 are arranged, and individual substrates 10 may be cut off in a bulb size for each segment electrode row in the final process of electrodeposition and bulb formation.
Patent JP-S5364956-A (JP)
Title: Method of treating waste liquid containing heavy metal
Inventor: NAGASAKI MASAHIKO
IPC: C02F1/70
Filed: 1976-11-19
Abstract: PURPOSE: To permit recovery of heavy metal ions contained in an acidic aquaous solution by capturing them as substituted reduced metal through contact of such heavy metal ions with fine iron particles and removal of metal ions, which can not be captured, together with effluent ferrous ions through co-precipitation with alkali. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S6038907-A (JP)
Inventor: KEBUIN II BUREEMA
IPC: H03F3/30
Filed: 1984-07-05
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-S5474011-A (JP)
Title: Combustion chamber for diesel engine
Inventor: OOTSU KAZUSHI
IPC: F02B23/06
Filed: 1977-11-24
Abstract: PURPOSE: To prevent the blow-up, improve the combustion efficiency and reduce the quantity of black smoke and NOx, by making a combustion chamber in an appropriate from.  
     CONSTITUTION: A lip part 13 is provided on the peripheral edge of inlet part of the combustion chamber so that the lip part extends toward the center. The outer diameter D (mm) of a pistion 8, the length d (mm) of the lip part and the vertical angle α° of a conical projection 14 provided on the bottom of the cumbustion chamber are related to one another as d=(0.002W0.02)D and 2000d/D+40<α<1500d/ D+120. A vortrical flow U is caused and maintained by the projection 14. When the piston 8 is in the expansion process, the reverse skish flow V is surely weakened. Therefore, the amount of black smoke is reduced. The length d and the angle α° are determined depending on data. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H04366352-A (JP)
Title: Hot water feeder
Inventor: ISONO TATSUJI
IPC: F24H1/14
Filed: 1991-06-12
Abstract: PURPOSE:To provide a hot water feeder in which petroleum or gas is applied as a heating source and mainly used for a home and further a post-boiling just after the hot water feeding is prevented. CONSTITUTION:A hot water feeding pipe 13 and a hot water discharging pipe 14 constituting a part of the hot water feeding pipe 11 passing through a hot water feeding port 4 and constituting a part of a hat water feeding pipe 11 connected to an inlet port and an outlet port of a mixing tank 12 from an outlet port of a heat exchanger 2 through the mixing tank 12 are projected into the inner deep part of the mixing tank 12 and at the same time an opening part 13a of the hot water feeding pipe is disposed opposite to a wall surface of the mixing tank and an opening part 14 of the hot water discharging pipe is disposed in opposition to the wall surface in an opposite direction against the opening port 13a of the hot water feeding pipe. With such an arrangement, hot water in post-boiling is well mixed within the mixing tank, resulting in that a hot water feeding of suitable temperature can be ensured in stable manner and then a compact-sized hot water feeding machine with a mixing tank of small capacity can be provided.
Patent JP-H035058-A (JP)
Title: Core pin for die
Inventor: TAKAHASHI KATSUHIKO
IPC: B22C9/06
Filed: 1989-05-31
Abstract: PURPOSE:To reduce stress developed in a product forming part due to solidified- shrinkage of the product part by forming the insertion part to insert in the pin fitting hole of the die with a part, which loosely inserts an insert-fitting part for insert-fitting into a pin fitting hole in a die with almost the same outer diameter as the diameter of the product forming part, and a part, which is fit-inserted as suitable to the fitting hole. CONSTITUTION:The product forming part (a2) and the loose inserting part 3 are formed as slender bar-state having the desired draft angle and connected with the fit inserting part 2, which is insert-fitted suitable inserting the loose inserting part 3 into the pin fitting hole 1 through a stepped part 5. Therefore, when the product forming part (a2) receives load crossing at the right angle to the axial direction according to the solidified-shrinkage of the product part (a2) developed during curing of molten metal, deflection is developed in the wide range to the loose inserting part 3 of the insert-fitting part (a1) having almost the same outer diameter as the product part. By this method, the stress developed to the product forming part (a2) is reduced. Therefore, the service life of the core pin A1 can be extended.
Patent JP-S5657504-A (JP)
Title: Assembled body for wheel of land car
Inventor: PATORITSUKU MAIKURU KADARETSUT
IPC: B60B35/18
Filed: 1980-10-08
Abstract: A bearing spacer for a wheel assembly which has a hub rotatable about a spindle. The hub has a bearing stop shoulder projecting radially inwardly from an inner circumferential surface of the hub. A bearing is mounted on an outer circumferential surface of the spindle and the bearing spacer is mounted intermediate the stop shoulder and the bearing. The bearing spacer is comprised of an annular member having axially extending inner and outer cylindrical surfaces and radially extending end surfaces. One of the end surfaces extends radially outward from the inner cylindrical surface a radial distance less than the radial extent of the stop shoulder. This end surface is joined to the upper cylindrical surface of the bearing spacer by a surface spaced from the stop shoulder and the inner circumferential surface of the hub. Consequently, the bearing spacer transmits thrust forces from the bearing to the bearing stop shoulder while allowing a large radius on the bearing stop shoulder to reduce undesirable stress concentrations therein.
Patent JP-H084637-A (JP)
Title: Ignition device for internal combustion engine
Inventor: TAKI HIROSHI
IPC: F02P3/08
Filed: 1994-06-22
Abstract: PURPOSE:To improve efficiency of a boosting circuit and reduce power consumption by dividing the boosting circuit into a front stage and a rear stage, and optimizing voltage resistance of first and second switch elements in the front and rear stages. CONSTITUTION:In a boosting circuit at a front stage are provided a charging first coil 10 connected to a dc low voltage power source 9, a first switch element 11 which controls charging/discharging of the first coil 10, a first diode 13 for discharging the first coil 10, and a first condenser 20 for accumulating discharging energy. In a boosting circuit at a rear stage are provided a charging second coil 15, a second switch element 16 which controls charging/discharging of the second coil 15, a second diode 18 for discharging the second coil 15, and a second condenser 6 for accumulating the discharging energy. A control circuit 3 controls high voltage application to the ignition coil 7 by means of the switch element 4 in the discharging circuit based on an ignition signal 1 of an ECU 2 for commanding an ignition timing.
Patent JP-S631370-A (JP)
Title: Inverter
Inventor: HATTORI MOTONOBU
IPC: H02M7/48
Filed: 1986-06-18
Abstract: PURPOSE:To suitably control the ratio of an output voltage to an output frequency in response to the magnitude of a load by providing effective signal output means, calculating means and frequency voltage control means. CONSTITUTION:The main circuit of an inverter has a power reactor 3, a smoothing condenser 4 and a power inverter 6. The inverter has an effective signal output means 13, calculating means 14 and frequency voltage control means 20. The means 13 outputs a signal responsive to the effective amplitude of the output of the inverter. The means 14 calculates the output of the means 13 and the output of output voltage indicating means 10 as variables, and outputs a correction output voltage indication signal. The means 20 controls the output of the inverter with respect to the correction output voltage indication signal and controls the output frequency of the inverter with respect to a reference frequency command signal.
Patent JP-H035946-A (JP)
Title: Automatic tracking device
Inventor: GOTO HIROSHI
IPC: G11B15/467
Filed: 1989-06-01
Abstract: PURPOSE:To execute exact tracking operation by executing tracking control based on a value for which all sample values corresponding to reproducing outputs from four heads are summed up. CONSTITUTION:A first memory means 9 is provided to store the plural sample values corresponding to the reproducing output from one head, at least, and a second memory means 13 is provided to store the total value of the sample values stored in this first memory means 9. The levels of the reproducing outputs from four heads 1-4 are sampled and the plural sampling values, which are obtained by sampling, concerning the four heads 1-4 are added 12. A comparing block 14 compares the newest arithmetic value with the maximum arithmetic value out of the four head output sample values in the past and tracking data are changed so that the arithmetic value to be obtained can be maximum. Thus, the exact tracking operation can be executed.
Patent JP-H09316228-A (JP)
Title: Thermoplastic resin foam and its production
Inventor: KOBAYASHI HIROSHI
IPC: C08J9/14
Filed: 1996-06-03
Abstract: PROBLEM TO BE SOLVED: To obtain a thermoplastic resin foam, without disrupting of ozonosphere, which is excellent in dimensional stability, heat-insulating properties and appearance and is suitably useful as a heat insulator or the like by melting a thermoplastic resin, formulating a foaming agent containing a fluorinated hydrocarbon ether thereto and entrusion-foaming them under specific conditions. SOLUTION: A thermoplastic resin which comprises 100 pts.wt. of an alkenyl aromatic resin and 0.05-10 pts.wt. of water, for example, a styrene resin is molten with heat, a foaming agent containing a fluorinated hydrocarbon ether, for example, heptafluoropropyl methyl ether (preferably in an amount of 20-100wt.%) and carbon dioxide (preferably in an amount of 0-80wt.%) are formulated to the molten resin to give a foamable gel substatnce. This gel substance is cooled down to a suitable temperature for foaming, extruded through a die into a low-pressure area to produce a thermoplastic resin foam having an average foam diameter of 0.2-3mm, a density of 10-100kg/m<3> , containing primary foams of 0.2-4mm diameter and secondary foams whose diameter is 1/10-1/2 that of the primary foams.
Patent JP-S63302968-A (JP)
Title: Ion trapping device
Inventor: TANABE SEIJI
IPC: B03C3/38
Filed: 1987-06-03
Abstract: PURPOSE:To inhibit the gas used in a vacuum tank from infiltrating into a rotary pump by providing an electrode for attracting the particles ionized with a high-voltage electrode to trap them. CONSTITUTION:When impressing high voltage of e.g. 10kV to the high-voltage (+) electrode plates 5a, electric discharge is caused between the high-voltage electrode plates 5a and the negative (-) or grounded electrode plates 5b. When oil molecules and gaseous molecules are passed through the electron cloud caused by this discharge, these are ionized to positive electric potential and the positive ionized molecules are sucked and attracted to the negative or grounded electrodes 5b and trapped. The gas used in a vacuum tank connected to a connection port 1 is inhibited from infiltrating into a rotary pump connected to a connection port 6 and thereby the rotary pump is protected. Further the oil used in this rotary pump is inhibited from infiltrating into the vacuum tank and thereby the vacuum tank is maintained in a clean and vacuum state.
Patent JP-S5842047-A (JP)
Title: Developing apparatus for use in diazo wet type copying machine
Inventor: TAKAHATA TERUAKI
IPC: G03D3/06
Filed: 1981-09-07
Abstract: PURPOSE:To prevent a developing soln. from dropping, by detecting presence of a developing soln. tank at a prescribed position, then, opening the outlet of a developing dish, and automatically closing it upon removing the tank. CONSTITUTION:When a developing tank 1 is set on a stand 6, a shaft 8 is lowered against a spring 7, a needle wire 13 is loosen, and a stopper 10 swings down due to its own weight to leave the outlet 5 open. When the tank 1 is removed from the stand 6, the shaft 8 is raised by the restoring force of the spring 7 against the weight of the stopper 10, the wire 13 is wound again, and the stopper 1 is swung in the arrow direction to close the outlet 5 with the main part of the stopper 10.
Patent JP-H01310509-A (JP)
Title: Circuit protecting element
Inventor: YODOGAWA MASATADA
IPC: H01C7/12
Filed: 1988-06-09
Abstract: PURPOSE:To allow both circuit protection elements and devices in a load circuit to be protected simultaneously by integrally forming both a polymer PTC thermistor whose resistance value is low at ambient temperature and a varistor by bonding through an electrode. CONSTITUTION:A polymer PTC thermistor 1 and a varistor 2 are connected in series to each other, and this series connected circuit is inserted in series with a power supply while a load circuit is connected between the varistor 2 and an electrode terminal. An electrode is connected to a polymer PTC thermistor element 1' and a varistor element 2' made of ZnO, SrTiO3, TiO2, and the like by such method as spraying Al or Cu or baking an Ag paste. Then, both elements are bonded through the electrode material 3. Electrodes 4, 5 are arranged on the outer surfaces of the respective elements 1', 2'. Further, respective electrodes 3 to 5 are connected by projecting lead wires 3' to 5' and are protected by a synthetic resin film 6. Accordingly, both the circuit protection elements and the devices in the load circuit can be protected simultaneously.