baber/WOPTO huggingface dataset:
Patent JP-2000240445-A (JP)
Title: Exhaust pipe for internal combustion engine
Inventor: KOBAYASHI JUN
IPC: F01N13/08
Filed: 1999-02-17
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust pipe for an internal combustion engine to sufficiently improve a cooling effect of exhaust gas without increasing a back pressure. SOLUTION: A number of recesses and protrusions 1a are formed on the side wall of an exhaust pipe 1, and the area of its inner wall surface is increased. A cooling water passage 2 is formed in the outside of the exhaust pipe 1, cooling water 3 is caused to flow through the inflow port 2a and the discharge port 2b of the cooling water passage 2, and the exhaust pipe 1 is cooled by cooling water 3. When exhaust gas makes contact with the exhaust pipe 1, the heat of the exhaust gas is transmitted to the exhaust pipe 1 and the temperature of the exhaust gas is decreased.
Patent JP-S59165980-A (JP)
Title: Vector control system of induction motor
Inventor: OONISHI KOUHEI
IPC: H02P21/00
Filed: 1983-03-10
Abstract: PURPOSE:To enable to control to always perpendicularly cross a magnetic flux to the secondary current including the interference variation due to the angular frequency of a power source by correcting to cancel the mutual interference due to the primary current. CONSTITUTION:A correction calculator 3 calculates the correction value for correcting the interference due to alpha-phase primary current i1alpha to the value passed through a coefficient unit 31 of the primary resistor r1 to alpha-phase primary current set value i*alpha to control the secondary magnetic flux lambda2 constantly for setting the beta-phase primary voltage e1beta. Further, it adds a correcting value for correcting the interference due to the beta-phase primary current i*1beta to the value passed through a coefficient unit 35 of the primary resistor r1 to the set value i*1alpha for setting the alpha-phase primary voltage e1. Thus, the motor 1 can be controlled for speed and torque in noninterference between the magnetic flux and the secondary current.
Patent JP-S58158308-A (JP)
Title: Muffler
Inventor: TAKEI HIROFUMI
IPC: F01N1/08
Filed: 1982-03-12
Abstract: PURPOSE:To enable to prevent more efficiently a whistle from occurring, by a method wherein a partition wall dividing a resonance chamber into a plurality of small chambers is provided so as to make its natural number of oscillations sufficiently higher than fluctuating frequency of a vortex generating within a gas duct. CONSTITUTION:Supporting brackets 21 and 22 are welded to an inner wall of an external cylinder 1, an insertion pipe 23, a connecting pipe 17 and an inlet pipe 11 respectively. A partition plate 24 is welded between the brackets 21 and 23. A gap is provided among both ends of the partition plate 24 and partition plates 4 and 5. In consequence of the above, a resonance chamber 25 is divided into small chambers 26, 27 and 28 and their natural number of oscillations are raised. The natural number of oscillations of cavity resonance of the resonance chamber 25 is made high so that it becomes sufficienthy higher than fluctuating frequency of a governable vortex generating within a gas duct.
Patent JP-H04279230-A (JP)
Title: Intermittent feed device for metal sheet in press
Inventor: KANDA KATSUTOSHI
IPC: B21D43/09
Filed: 1991-03-06
Abstract: PURPOSE:To enable accurate punching and to prevent a sheet metal from breaking in an intermittent feeding device in a press. CONSTITUTION:In this punching press, a forward feed roller 6 and a backward feed roller 7 rotated intermittently by a servomotor 16 are provided respectively before and behind a punching die 5 and as a sheet metal 1 is fed by these forward and backward feed rollers 6, 7 intermittently to this punching die 5, plural working places of this sheet metal 1 are punched in sequence and before working places nearly in the center of this sheet metal 1 are punched by control means 25, the sheet metal 1 is fed by this forward feed roller 6, then, as the sheet metal 1 is fed by the backward feed roller 7, the elevating means 19, 20 on the front and rear sides are controlled so that the sheet metalis are punched. The sheet metal 1 can be prevented by unreasonable force given by the difference of peripheral speed between the forward feed roller 6 and backward feed roller 7 from being deflected and drawn.
Patent JP-H11222139-A (JP)
Title: Steering device for vehicle
Inventor: MATSUMOTO SAKAE
IPC: B62D1/189
Filed: 1998-02-06
Abstract: PROBLEM TO BE SOLVED: To provide a steering device for a vehicle to improve rigidity of a steering column through reliable prevention of the backlash or the like of a steering column or the like, to produce an excellent telescopic operation sensation is produced through reduction of a telescopic operation force and besides, a machining cost is reduced. SOLUTION: A bush 34 to block movement of an outer tube 22 is forward and backward movably interposed between a bush holder 38 arranged at a lower bracket on the car body side and the outer tube 22. The bush 34 is coupled to a link mechanism extended from a control lever 33 and moved forward and backward through a space between a bush holder 38 on the car body side and the outer tube 22 in linkage with rotation of the control lever 33.
Patent JP-S58157041-A (JP)
Title: Cathode-ray tube
Inventor: YAMAGUCHI TAKEHIRO
IPC: H01J29/66
Filed: 1982-03-12
Abstract: PURPOSE:To make it possible to obtain a desired beam spot even an electron gun inclines in a neck part, by providing, on the outside of the neck part of an outer vacuum vessel, a magnet that focuses and corrects electron beams into a spot on a phosphor body layer. CONSTITUTION:A single electron beam cathode-ray tube is formed by an outer vacuum vessel 1 provided with a panel part 1a on which a phosphor layer 3 is deposited a funnel part 1b having a conductive film lyer 4 which is in the same potential as the phosphor layer 3, and a neck part 1c containing in itself an electron gun 5, thus an electron lens is constructed by making use of the potential difference between the electron gun 5 and the conductive film layer 4. Further, magnets 14, 15, 16 comprising two, four, and six poles are provided on the outside of the neck part 1c, and thereby the shape of a spot on the phosphor layer 3 is corrected to an ideal circular small one. Accordingly, it is possible to very easily correct the beam when an electron gun 5 is supported in its slant attitude on a neck part 1c with a positioning spring 12.
Patent JP-S52123105-A (JP)
Title: Random error correction unit
Inventor: YAMASHITA KAZUMI
IPC: G06F11/10
Filed: 1976-04-09
Abstract: PURPOSE:To have an efficient restraint of the erro propagation with small circuit scale using the fold-in code.
Patent JP-S59165381-A (JP)
Inventor: TAKASAKI SHIYUUICHI
IPC: H01R4/24
Filed: 1983-03-10
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-H03242942-A (JP)
Title: Semiconductor integrated circuit
Inventor: ENDO KOICHI
IPC: H03K17/081
Filed: 1990-02-21
Abstract: PURPOSE:To enable protection of a current control element from breakdown by an overcurrent by a method wherein an excessive output current exceeding a drain maximum saturation current of a junction-type field effect transistor(JFET) is suppressed by the JFET and also an output current is thereby controlled. CONSTITUTION:A constant-voltage power source IC 80 has a direct-current input terminal couple 22, 24 to which a direct-current power is inputted, an output terminal couple 23, 24 supplying the power to a load, and JFET 21 of which a drain terminal D is connected to the input terminal 22 and a source terminal S to the output terminal 23. An output voltage is divided by resistors 25, 26 and an error amplifier 27 outputs to a gate G of the JFET 21 a signal being proportional to an algebraic difference between a reference voltage of a reference voltage source 28 and the partial output voltage. Accordingly, a drain current of the JFET 21 increases and decreases, a voltage between the output terminals 23 and 24 is always controlled to be a constant voltage, the maximum current of the JFET 21 is suppressed by a drain maximum saturation current IDSS, and a current exceeding this current does not flow fundamentally. Accordingly to this constitution, the JFET 21 is also protected from the breakdown due to an overcurrent even when any abnormality such as short circuit occurs in a load circuit.
Patent JP-S57156400-A (JP)
Title: Crucible for preparing single crystal
Inventor: HARA HISAO
IPC: C30B35/00
Filed: 1981-03-23
Abstract: PURPOSE: To obtain the titled crucible less expansively than an Ir crucible, having longer life than it, by covering a main body of a crucible made of a high-melting metal such as W, Mo, Ta, Nb, Rh, platinum rhodium, etc. with a noble metal such as Ir, Pt, etc.  
     CONSTITUTION: A main body of a crucible is made of high-melting W, Mo, Ta, Nb, Rh, platinum, which is less expensive than Ir, and more easily processed, and its surface is covered with a noble metal such as Ir, Pt, by chemical vapor phase deposite or metallizing. By doing ths, the deformation of the bottom, which occurs in a crucible like the existing Ir crucible can be prevented, and the life of a crucible can be extremely improved. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S54132347-A (JP)
Title: Device for mounting ventilator at window
Inventor: HASEGAWA YUKIHISA
IPC: F24F7/00
Filed: 1978-04-05
Abstract: PURPOSE: To provide a device capable of containing a ventilator fan body directing at the front surface toward the indoor side by rotating the cylindrical body toward the indoor side to close the window.  
     CONSTITUTION: There are provided an air exhaust port 4 at the front and an air intake port 5 at the rear of a cylindrical ventilation fan body 3 mounted via a mounting frame 1 at a window frame 2 with a blower provided therein. A gear 6 formed with teeth 7 on the half periphery is provided at the center of the upper and lower surfaces of the body 3 to be engaged with the rack teeth 15 of rack bodies 13, 13 held by supporting frame 12 and electric box 8. When the body 3 is moved indoor side, the teeth 7 and rack teeth 15 are disposed at the indoor side end of the groove 14 of the rack body 13 to close the window at the frame 2 with the port 4 located at the indoor side and the port 5 directing the outdoor side at this time. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S62241683-A (JP)
Inventor: CHIYAARUZU ROBAATO UOJISHIECHI
IPC: B25J13/00
Filed: 1987-02-25
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-S63207748-A (JP)
Title: Room lamp device for vehicle
Inventor: YUKITOMO KAZUO
IPC: B60Q3/02
Filed: 1987-02-24
Abstract: PURPOSE:To miniaturize a driving transistor and enable the common use of a device with other vehicle types by connecting a room lamp and a door switch in series in between a power source and an earth while connecting a dimming controller for said room lamp to one point in between said room lamp and said door switch. CONSTITUTION:A room lamp 3 and a door switch 4 are connected in series in between a power source 1 and an earth 2. Also, a door switch detecting part 5 for detecting the on/off of the door switch 4 is provided. And, a room lamp driving control part 6 which dims the room lamp 3 when a door is closed based on the detected result of the detecting part 5 is connected to one point P between the room lamp 3 and the door switch 4. Thereby, the heat generation of a driving transistor for lighting the room lamp 3 can be reduced. Also, at the time of the manufacture of a vehicle type in which the room lamp 3 is not dimmed, the wiring of a short cord for connecting the room lamp 3 to the door switch 4 can be eliminated.
Patent JP-H08232201-A (JP)
Title: Equipment for supporting rail for railroad
Inventor: ITO TOMOHIRO
IPC: E01B1/00
Filed: 1995-02-28
Abstract: PURPOSE: To prevent deterioration of a rail supporting mechanism by providing a tightening mechanism to inwardly tighten a supporting tool to be arranged on the right and left sides of cubes with two cubes of the granular super-plastic metal solidified with high damping hard rubber being one set. CONSTITUTION: A number of granular super-plastic metal is solidified with high damping hard rubber, and grooves for embedding ties are provided in three faces which are orthogonal to each other, and holes for passing through bolts are provided to form a cube 11. Two cubes 11 are arranged in the right-to- left direction, and a supporting tool 6 consisting of a holding plate is held on each side of the cube 11 and the supporting tool is tightened by through bolts 5, nuts 7, and locking nuts 8. In the execution, the cubes 11 are continuously arranged on a guide way 9 in the longitudinal direction of the rail, and ties 2 are embedded in the grooves for embedding the ties of the cubes 11, and the rail 1 is laid on the ties 2.  Because the temporary deformation of the super- plastic metal is restored by the elastic force of rubber, the service life is improved, and the maintenance frequency can be reduced.
Patent JP-H02218877-A (JP)
Title: Refrigerating circuit
Inventor: TAGASHIRA HIDEAKI
IPC: F04B41/06
Filed: 1989-02-20
Abstract: PURPOSE:To reduce vibration and noise easily at low cost by setting the difference in length between two exhaust pipeline parts connecting two compressors made into contact to each other in parallel with an expansion type silencer into an odd magnification of the half-wave length in the pulsating wave of the compressors. CONSTITUTION:In a refrigerating circuit, an expansion type silencer 4, a flocculator 2, a throttling device 3, a cooler 4, and two compressors 1a, 1b connected in parallel to each other are connected to each pipeline 5a-5d, 6-8 to mutually form a circuit. In the above constitution, the difference in length of two exhaust pipelines 5a, 5b connecting the compressors 1a, 1b with the expansion type silencer 5, respectively, is set to an odd magnification of the half-wave length in the pulsating wave of each compressor 1a, 1b. Namely, one pipeline 5a is set to the other pipeline 5b in such a manner that the difference between the respective lengths is equal to the half-wave length in the pulsating wave of a coolant gas exhausted from each compressor 1a, 1b.
Patent JP-S60184632-A (JP)
Title: Production of grain oriented electrical steel sheet having high magnetic flux density and excellent magnetic characteristic
Inventor: NAKAJIMA SHIYOUZABUROU
IPC: C22C38/00
Filed: 1984-03-03
Abstract: PURPOSE:To obtain more stably a material having a low iron loss in a process for producing a grain oriented electrical steel consisting of a specifically composed silicon steel sheet contg. AlN as a main inhibitor and added with Sn and Cu in combination by adding a prescribed amt. of Ti to said steel sheet. CONSTITUTION:A molten steel contg. 0.02-0.12% C, 2.7-4.0% Si, 0.03-0.20% Mn, 0.01-0.05% at least one kind of S and Se, 0.01-0.05% sol Al, 0.004- 0.012% N, 0.03-0.5% Sn and 0.02-0.4% Cu is incorporated therein with 0.0020- 0.0100% Ti. The slab of such silicon steel is hot rolled and is subjected to annealing and quick cooling treatment prior to final cooling, then to final cold rolling followed by decarburization annealing, coating of a separating agent for annealing and finish annealing at a high temp., by which the grain oriented electrical steel sheet is obtd. The grain oriented electrical steel sheet having high magnetic flux density and low iron loss is obtd. according to the above-mentioned method.
Patent JP-S58159203-A (JP)
Title: Magnetic video recording and reproducing device
Inventor: YOSHIOKA ATSUSHI
IPC: H01F38/18
Filed: 1982-03-17
Abstract: PURPOSE:To reduce the cost and to make the manufacture easy, by making the rotor winding of a rotary transformer one turn with wires having square cross section and making the area of opposing surfaces of the rotor and stator windings almost equal. CONSTITUTION:Figure shows a cross section where a rotor core 18 and a stator core 22 are opposed with each other. The winding of the 1st and the 2nd channels 19, 20 of the rotor side is one turn respectively and short-rings 21, 25 are provided. The winding of the 1st and the 2nd channels 23, 24 of the stator side is 4-turn with a round wire. An air gap 26 is formed between both cores 18 and 22.
Patent JP-S55134729-A (JP)
Title: Controlling device of air-fuel ratio for internal combustion engine
Inventor: MASAKI KENJI
IPC: F02D41/14
Filed: 1979-04-06
Abstract: PURPOSE: To save the fuel consumption of an internal combustion engine and to increase its output, by keeping the average air-fuel ratio at a slightly rich or lean value through repeated control of the air-fuel ratio so that it is varied away from the theoretical air-fuel ratio in a feedback-controlling type carburetor.  
     CONSTITUTION: In an intake passage 2 of the engine 1, there is provided an electronically controlled fuel injection valve 3, operation of which is controlled by an electronic controlling unit 6 which is afforded with signals from an oxygen-density sensor 5. The controlling unit 6 consists of a pulse generating circuit 7 which produces driving pulses for injection valve 3 and a control means 8 which gives a control signal to the circuit 7, and it functions to save fuel consumption by comparing the signal from the sensor 5 with the theoretical air-fuel ratio and determining the actual air-fuel ratio at a slightly lean value on the average by repeatedly shifting the air-fuel ratio between itself and the theoretical air-fuel ratio to vary the same to a leaner value when it is required to keep the air-fuel ratio at a relatively lean value. In case of increasing the engine output, on the other hand, the air-fuel ratio is shifted repeatedly toward a richer value. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S58158313-A (JP)
Title: Manufacture of muffler
Inventor: BETSUI KATSURA
IPC: B21D39/06
Filed: 1982-03-17
Abstract: PURPOSE:To prevent reliably the corrosion of the titled device resulting from condensed water and distortion of an external cylinder and a partition plate from occurring, by connecting a connecting hole formed on a flange with a protrusion formed on the external cylinder so as to secure the titled device. CONSTITUTION:Connecting holes 5... are formed on a flange 4 of partition plates 2a and 2b. Then, an inner pipe 8a is secured on the partition plate 2a. Then, the partition plate 2a is supported by a cylindrical socket tool 20. The outside diameter of the socket tool 20 is about identical with the inside diameter of the flange 4 and an end of the tool 20 is inserted into the flange 4 so that it is touched internally to an internal circumferential surface of the flange 4, that is. The other partition plate 2b is inserted into a predetermined position of the inside of an external cylinder 1 through the other socket tool 20. Protrusions 6... protruding inwardly are formed by embossing corresponding parts of the connecting holes 5 in an external cylinder 1. The partition plates 2a and 2b are secured on the external cylinder 1 by connecting the protrusions 6... with connecting holes 5....
Patent JP-H05242929-A (JP)
Title: Connector
Inventor: NAKANISHI KEIICHIRO
IPC: H01R13/719
Filed: 1992-02-27
Abstract: PURPOSE:To enable high-frequency pulses to be transmitted without a change in connector structure, and provide a connector suitable for a large-sized logic device including a computer by inserting a connecting element and a capacitive element between a terminal for signal connection and a terminal for connecting a power supply having ground potential. CONSTITUTION:When a small printed circuit board 1 is connected to a large printed circuit board 3 via a connector 2, a transmission signal from a signal transmission circuit 4 in the board 1 is sent to a signal pin 7 fixed to the lower side of the board 1 via a through-hole 5. The pin 7 is kept in contact with a metal piece 9 having spring characteristics inside the connector 2, and sends the signal to a through-hole 11 in the board 3. In this case, both the signal transmission circuit 4 in the board 1 and a signal transmission circuit 13 in the board 3 are so adjusted to have the impedance of the same characteristics. Also, a power supply hole 6 in the board 1 and a power supply hole 12 in the board 3 are connected to each other via a power supply pin on the lower side of the board l, and a metal piece 10 in the connector 2 for power supply via an IC chip. Furthermore, a characteristic element 15 and a capacitive element 16 are laid between the pins 7 and 8, thereby preventing an echo inside the connector 2.
Patent JP-S6041063-A (JP)
Title: Image forming device
Inventor: ARIGA MASAO
IPC: G03G15/00
Filed: 1984-03-02
Abstract: PURPOSE:To enable high-speed continuous copying irrespectively of the size of a transfer material by controlling the operation of a process means such as original feed or the like from the moving position after the feed of transfer paper is started. CONSTITUTION:Clock pulses are counted after passage of an original through a detector 106. When the succeeding original does not come to the detecting part 106 until the pulses are counted by 50, a rotation mode is started after awaiting passing-through of the transfer paper. If the succeeding original arrives at the part 106 during counting of 50, the pulses are further counted by 50 (total 100 clocks) and thereafter the passage of the transfer paper is waited. If the transfer paper is under passage, the original is once stopped. When the transfer paper passes by thereafter, the original is delivered and a paper feed plunger 113 is turned on as well to feed the succeeding transfer paper. On the other hand, the succeeding original is fed as it is and the exposing is continued, then the transfer paper is fed by the signal of the 100-th clock in the case of the short- sized transfer paper which can detect the end of the passage of the transfer paper within the 100 clocks. The rear end of the transfer paper is detected and the start of exposing is controlled in the above-mentioned way and therefore the continuous copying at a high speed is made possible irrespectively of the sizes of the original and the transfer paper.
Patent JP-S588541-A (JP)
Inventor: RUISU ANTONIUSU MARIA JIYANSEN
IPC: B01F27/96
Filed: 1982-03-17
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-H11224011-A (JP)
Title: Fixing device
Inventor: AZUMA YUICHIRO
IPC: G03G15/20
Filed: 1998-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a fixing device capable of fixing unfixed toner carried on a record medium without disturbing the unfixed toner, now matter how much the recording medium in transfer is curved (curled), and also, for suppressing the offset of the record medium after finishing a fixing operation. SOLUTION: The fixing device 10 is provided with a fixing roll 28, and a pressure roll 30 which is energized so as to come into contact with the fixing roll 28 with rotation, and by making the sheet with the unfixed toner carried on its surface pass through the nip part of the fixing roll 28 and the pressure roll 30 in one-way direction, the unfixed toner is fixed on to the sheet. In this case, the device is provided with a heating roll 34 arranged nearly above the fixing roll 28 and adjacent to the roll 28, and with a heat generating source 32 inside, and a heat transmission belt 36 which is laid to be stretched between the heating roll 34 and the fixing roll 28 in an endless state, and for heating the unfixed toner on the sheet passing through the nip part in accordance with the heat transmission from the heat generating source 32.  And, the fixing roll 28 is formed of an elastic roll with an elastic layer installed on the outer periphery.