baber/WOPTO huggingface dataset:
Patent JP-H11205051-A (JP)
Title: Differential conversion amplifying circuit
Inventor: JOKURA ATSUSHI
IPC: H03G3/10
Filed: 1998-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a differential conversion amplifying circuit with satisfactory characteristics of low distortion in a high frequency range by the exclusion of a capacitor. SOLUTION: This amplifier is provided with a first current mirror circuit, including first and second transistors Tr1 and Tr2 for base-inputting a single- phase input signal from an input terminal Tin and a second current mirror circuit which includes forth and fifth transistors Tr4 and Tr5 which connect the collector side of a third transistor Tr3 base-inputting an input signal from the input terminal Tin with a current path. Then, the current of an inverse mode is generated at each of them and a voltage signal of an reverse phase is impressed to the base of a differential pair by the load resistor of the current path by a differential pair (a sixth transistor Tr6 and a seventh transistor Tr7) which connect a base with the current path of each current mirror circuit.  As a result of the impression, a satisfactory balanced output signal of low distortion is obtained from output terminals Tout 1 and Tout 2.
Patent JP-S57120225-A (JP)
Title: Vertical magnetization type magnetic recording device
Inventor: KOMIYAMA KOUZOU
IPC: G11B5/02
Filed: 1981-01-16
Abstract: PURPOSE:To prevent deterioration in recording efficiency with simple constitution by applying a signal with adequate frequency to an inductance consisting of a main magnetic pole and an auxiliary magnetic pole, and by finding the distance between the main magnetic pole and auxiliary magnetic pole indirectly from a signal current value and holding it constant. CONSTITUTION:The voltage across e0 an external resistance R is determined by the inductance L of an auxiliary magnetic pole part 5 which is the function of the distance (d) between a main magnetic pole and an auxiliary magnetic pole, the external resistance R, the output voltage (e) of an oscillator 8, and a frequency (f), and then compared with a reference voltage e1 by a comparing circuit 11. If a difference is found, a control signal is send to a heat driver 14 through an amplifier 12 to convert the rotation of a motor 13 into linear motion, which is transmitted through a bearing 19 to a tapered rod 20, whose inclination is utilized to move a head pedestal 21 forth and back finely. Consequently, the main magnetic part 7 is moved as shown by an arrow to vary the distance (d), i.e., the inductance L, and the e0 is equalized to the e1 to make the (d) correspond to the e1.
Patent JP-S56100459-A (JP)
Title: Electronic component
Inventor: SAIKAI HIROSHI
IPC: H01L23/495
Filed: 1980-01-16
Abstract: PURPOSE:To surely prevent short-circuit of adjacent lead wires by using for the lead wires a material hard to migrate and by coating the same with a coating agent burnt at the soldering temperature in the electronic component wherein the lead wires are projected from an insulation body. CONSTITUTION:A semiconductor pellet is fixed to a silver-plated part provided on a copper frame, while the lead wires 3a-3h formed of copper silver-plated partially are bonded by the wire bonding method to each of electrodes provided on the pellet. Next, this pellet is sealed in the insulation body 1 made of epoxy resin with the copper of the lead wires 3a-3h being projected. The projected part of the lead wires is devised to be formed only of copper and, especially, the electrical short- circuit due to migration is eliminated beforehand. Moreover, the surface of the projected lead wires is coated with the fluoric coating agent which rejects the moisture and is burnt at the soldering temperature, whereby oxidization of copper as well as occurrence of migration is prevented.
Patent JP-H06210305-A (JP)
Title: Aluminum rolled sheet for working and aluminum alloy rolled sheet for working excellent in workability
Inventor: KURAHASHI MOTOFUMI
IPC: B21B1/22
Filed: 1993-01-13
Abstract: PURPOSE:To provide a soft aluminum rolled sheet for working, soft aluminum alloy rolled sheet for working, high-tensile aluminum rolled sheet for working and high-tensile aluminum alloy rolled sheet with which press workability is drastically improved. CONSTITUTION:The capability of oil pool on the surface of the aluminum rolled sheet for working and the aluminum alloy rolled sheet is improved by having uniform recessed parts on the surface of the aluminum rolled sheet for working and the aluminum alloy rolled sheet for working and also the soft aluminum rolled sheet for working, soft aluminum alloy rolled sheet for working, high- tensile aluminum rolled sheet for working and high-tensile aluminum alloy rolled sheet for working are made by having flat parts on the bottom face of the recessed parts to furthermore ensure the effect of oil pool and taking the diameter of the recessed part as 20-600mum, the pitch of the recessed part as 10-1000mum and the depth of the recessed part as 1-20mum at the time of making the recessed parts.
Patent JP-S5596758-A (JP)
Title: Subscriber's line information tone transmission system
Inventor: KOBAYASHI TOSHIKATSU
IPC: H04Q3/54
Filed: 1979-01-17
Abstract: PURPOSE:To make the subcriber's line information tone transmission system small- size and economical by giving the ring trip function, which the subscriber's circuit unit of a mobile exchange has conventionally, to a common unit in the mobile telephone system where calling is directly stored in the subscriber's circuit of a general subscriber storage exchange through a two-wire subscriber's line. CONSTITUTION:Subscriber unit LCU connected to subscriber's circuit LC of a general subscriber storage exchange station is provided with a information tone transmission means consisting of information tone source OSC to the general subscriber storage exchange station, capacities CA and CB for DC cut-off, and a information tone transmission relay (the contact is t<0>). Mobile unit sender trunk MST which selects a subscriber at the incoming time to a mobile subscriber is provided with a ring trip means consisting of diode DA for one-direction loop forming and a ring trip relay (the contact is s<0>). In case that call is impossible at the incoming time to the mobile unit subscriber, contact t<0> is closed at a fixed time after ring trip, and busy or talkie tone is transmitted to the originating subscriber through the path of tone source OSC contact t<0> capacity CA  circuit LC the originating subscriber circuit LC capacity CB tone source OSC.
Patent JP-S57118473-A (JP)
Title: Photographic storing and telegraphing system with suppression of redunancy
Inventor: HIGUMA MASAYUKI
IPC: H04N1/41
Filed: 1981-01-14
Abstract: PURPOSE:To realize the transmission of a picture with high quality, by deciding the stepped concentration distribution from the digitized picture signal, dividing the stored original picture signals into segment lines on a scanning line and with use of the said concentration distribution and allotting the concentration distribution with every segment line for coding. CONSTITUTION:An optical conversion input part 11 is provided along with an A/D converting part 13 which digitizes the output of the part 11, a CPU16, a main storage part 15 connected to the CPU16, a modulating/demodulating part 20, etc. The input signal received an A/D conversion 13 is stored in the part 15 under the control of the CPU16. The CPU16 obtains the stepped concentration distribution from the stored data, divides the picture signals stored in the part 15 into the segment lines based on the stepped concentration section and on each scanning line and allots the corresponding stepped concentration section for each segment line. At the same time, the allotted concentration section and the number of picture elements contained the segment line are coded in the form of a pair. In such way, the high quality of pictures can be assured with no short break of the circuit, the level fluctuation, the phase jitter, the S/N ratio nor soils,  dusts, flaws of a recording medium.
Patent JP-S58121889-A (JP)
Title: Comb type filter
Inventor: YOSHIMURA MAKOTO
IPC: H04N9/78
Filed: 1982-01-14
Abstract: PURPOSE:To prevent dot and cross color interference, by picking up a carrier chrominance signal component included in the output of a Y type comb filter with suppression to a color video signal without vertical correlation. CONSTITUTION:When a signal from a white signal a2 to a red signal a3, a signal b3 is picked up from an adder 4, after 1H(horizontal scanning period) a red signal a4 is obtained, signals a4 and a3 are summed and the output is regarded as a luminance signal component b4(Fig. B) only. Further, a signal in response to the amplitude is picked up from the output of an adder 16 at a detector 18, applied to a comparator 13, and an output d4(Fig. D) of a detector 12 and an output e4(Fig. E) of the detector 18 are summed and clipped at a voltage V, and a  zero output f4(Fig. F) is obtained. Thus, when red signals are consecutive vertically, the suppression filter 19 is inoperative. Further, when a high frequency  luminance signal is incoming, the luminance signal is picked up from adders 4,  16 as it is, the suppression filter 19 is not operated and the high frequency luminance signal is applied to a CRT without suppression.
Patent JP-S58120919-A (JP)
Title: Elevating device for drop hammer
Inventor: HAYASHI RIYOUJI
IPC: E02D7/10
Filed: 1982-01-14
Abstract: PURPOSE:To prevent a decrease of a pile-driving force, by a method wherein a free piston is mounted to a cylinder body, a controller for a vertical movement which can ensure a passage having a large cross section and no reduced section part is installed to prevent a weight from delaying in a dropping speed at a stage of downward movement. CONSTITUTION:A device is constituted such that a free piston 28 loosely engages  with an upper end at an inner side of an outer cylinder 24, a valve piston 27 having a connecting hole 27a and sliding between the free piston 28 and an inner  cylinder 23 is located, and an upper chamber 28a is held therebetween. If fluid enters through a lower port 30 and a weight 29 is positioned at a given level, with switching valves 34 and 35 actuated by a detector 36, the upper chamber 28a is open to a tank, and the switching valve 34 leading to the connecting hole 27a is closed to push upward the valve piston 27. Fluid in a lower cylinder chamber 25 flows to an upper cylinder chamber 26a through an outer annular chamber 26, and the weight 29 is lowered. In this case, the increase of the volume of the upper cylinder chamber 26a is offset to prevent the production of a cavity, and a high-pressure fluid is released in a short time, which results in preventing a decrease of the dropping speed.
Patent JP-H06215921-A (JP)
Title: Manufacture of ferrite calcinated powder
Inventor: MIYAUCHI MASAHIRO
IPC: C01G49/00
Filed: 1993-01-14
Abstract: PURPOSE:To manufacture ferrite calcinated powder having excellent moldability in a real manufacturing operation in a stabilized manner. CONSTITUTION:Wet-mixed ferrite raw material slurry or cake is compressed and dehydrated at a pressure ranging from 50 to 200kg/cm<2>, thereby eliminating the moisture and air. Then, the dehydrated slurry or cake is dried, calcinated and crushed so that ferrite calcinated powder are obtained, which provides a low porosity and excellent moldability. Since this material reduces the granular dependence of the moldability, it is possible to perform stabilized operation.
Patent JP-H06215376-A (JP)
Title: Optical disk device
Inventor: OKADA MITSUYA
IPC: G11B7/125
Filed: 1993-01-14
Abstract: PURPOSE:To reduce the fluctuation of a mark length by edge recording due to the difference of the coefficients of absorption caused by the fluctuation of reflectivity and to largely suppress the fluctuation of the recording mark length. CONSTITUTION:At the time of reproducing information from an optical disk 1, a reproduced light quantity is monitored by an optical head 2 and the fluctuation of reflectivity of sector information to be recorded next is measured. Thus, data of the reflectivity fluctuation of the sector information are stored in a memory circuit 6 connected to a detecting circuit 3 for reproduced light quantity. In a recording mode successively executed, the data of reflectivity fluctuation stored in the memory circuit 6 are added to the recording power data or the recording pulse width data supplied to a laser driver circuit 4, the recording power data are compensated so as to be small in the low reflectivity part and large in the high reflectivity part and the recording pulse width data are compensated so as to be short in the low reflectivity part and long in the high reflectivity part. After performing this operation, the recording power data and the recording pulse width data are supplied to the laser driver circuit 4.
Patent JP-H0531189-A (JP)
Title: 2-chamber type injector
Inventor: MORIMOTO SHUJI
IPC: A61M5/31
Filed: 1992-01-14
Abstract: PURPOSE:To obtain a disposable 2-chamber type injector which is easy to use with a compactness and highly practicable with an injection needle and an injection syringe for two components and a plunger airtight to outside air without the use of any exterior component. CONSTITUTION:An injection needle 41 is fastened at the tip of an injection syringe 49 filled with a first component while the injection syringe 49 is housed slidably within an outer cylinder 20. A second component chamber 10 is fastened airtightly at the tip of the outer cylinder 20 through a pierceable seal member 21. A cover 50 is mounted at the rear end of the outer cylinder 20 to over the rear end of the injection syringe 49 containing a plunger 45 slidably inserted freely into the injection syringe 49 airtight in cooperation with the outer cylinder 20.
Patent JP-H02186364-A (JP)
Title: Process cartridge
Inventor: KOSUGIYAMA OTOYA
IPC: G03G15/00
Filed: 1989-01-13
Abstract: PURPOSE:To miniaturize a cleaning means without leaving the remaining space of a waste developer housing part unnecessarily large by obtaining the irreducible minimum volume of the waste developer housing part of the cleaning means from the sum of a volume resulting from the entire main developer in a main developing means and a volume resulting from subdeveloper in each subdeveloping means. CONSTITUTION:VB is the volume of waste developer collected in the waste developer housing part 16a of the cleaning means 16, resulting from the entire main developer in the main developing means 15. VC is the volume of waste developer collected in the waste developer housing part 16a of the cleaning means 16, resulting from subdeveloper in each subdeveloping means 13 required to print the number of transfer papers which can be printed by the main developing means 15. At this time, the irreducible minimum volume V of the waste developer housing part 16a of the cleaning means 16 is V VB+VC. Therefore, the remaining space of the waste developer housing part 16a of the cleaning means 16 does not need to be left unnecessarily large. Thus, the cleaning unit 16 can be miniaturized as much as possible.
Patent JP-S5288745-A (JP)
Title: Zero-phase current detecting system
Inventor: KAWAMATA KIYOSHI
IPC: H02H3/34
Filed: 1976-01-20
Abstract: PURPOSE: To perform the effective collocation of a current transformer for detecting the zero-phase current by means of decrease in the residual zero-phase current in the design that a variable impedance is connected in parallel with the secondary winding of each phase current transformer to regulate this. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H10196035-A (JP)
Title: Roof construction of wooden building
Inventor: TOKAI YOSHIHIRO
IPC: E04B7/06
Filed: 1997-01-14
Abstract: PROBLEM TO BE SOLVED: To reduce the number of members, and shorten the period of construction to reduce the building cost by engaging plural roof structures with each other to cover the wood frame of a wooden building, and connecting and holding the same in its state. SOLUTION: First and second roof panels 7, 8 inclined in the different directions are supported on a girder provided along the girder row direction on the upper end of a post in a wooden building in such a manner as to cover the framework of a wooden building. The respective roof panels 7, 8 comprise plural long square timbers 9, 9 and short squre timbers 10, 10, which are alternately arranged adjacent to each other to form engaging parts 16, 16 different in level in the upper end part. Both roof panels 7, 8 are assembled to each other by the engaging part 16, and in such a condition, they are connected and held by holding means comprising a ridge board 18, splice bars 17, 19, 20 and cotters 21a-21d. Thus, the number of many members can be reduced, and the term of works can be shortened so as to reduce the building cost.
Patent JP-H03213123-A (JP)
Title: Method and apparatus for desulfurizing exhaust gas
Inventor: KAMIMURA FUMIO
IPC: B01D53/50
Filed: 1990-01-12
Abstract: PURPOSE:To obtain high desulfurization efficiency by a reduced amount of a desulfuerizing agent by adding a process wherein the desulfurizing agent containing coal ash is mixed with water to dissolve soluble alkali in water and a solid is separated to prepare an aqueous alkali solution which is, in turn, sprayed into exhaust gas. CONSTITUTION:A desulfurizing agent is blown in a combustion furnace 1 using coal as fuel to be reacted with sulfur oxide in gas to perform desulfurization in the furnace and water is sprayed into the exhaust gas generated from the furnace from a spray cooler 3 and the desulfurizing agent scattering from the furnace is allowed to react with sulfur oxide in the exhaust gas. At this time, the desulfurizing agent containing coal ash caught from the exhaust gas is suspended in water by a mixer-separator 4 to dissolve soluble alkali in water and a solid is separated from an aqueous alkali solution. The aqueous alkali solution after separation is sprayed from an aqueous alkali solution spray pipe 8 by the spray cooler 3. As a result, high desulfurization efficiency can be obtained by a reduced amount of the desulfurizing agent and the abrasion and closure of a spray nozzle can also be prevented.
Patent JP-S57119306-A (JP)
Title: Production of photoconductive sheet
Inventor: SHIOZAWA ETSUO
IPC: G02B6/13
Filed: 1981-01-16
Abstract: PURPOSE:To produce a flexible photoconductive sheet with high efficiency, by filling the resin of a low refractive index into a space containing a resin sheet of a high refractive index and held at a specific state and then slicing the composite material. CONSTITUTION:A resin sheet 3 of a high refractive index is fitted into a notch provided at the outer circumference of a holding member 1, and then both edge parts of the sheet 3 are fitted into a hollow part 5 of a frame 4 to be enclosed and supported by a bottom plate 6. After this, the resin 8 of a low refractive index is poured into a case body formed with the frame 4 and the plate 6 and then hardened to be unified with the sheet 3. Then the frame 4 and the bottom 6 are removed, and the extra part of the sheet 3 swelled out at the upper part of the resin 8 is cut away. The member 1 is pulled out and removed to obtain a composite member 9. This member 9 is sliced in the direction orthogonal to the sheet 3 to obtain a flexible photoconductive sheet 10 containing an opening 11.
Patent JP-S62164195-A (JP)
Inventor: MORIMOTO TAKAFUMI
IPC: G07G1/12
Filed: 1986-01-16
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-H09199075-A (JP)
Title: Electron tube
Inventor: ARAGAKI MINORU
IPC: H01J40/16
Filed: 1996-01-16
Abstract: PROBLEM TO BE SOLVED: To provide an electron tube which can suppress the decay of light to be detected incoming to a transmission type photoelectric surface and detects slight light. SOLUTION: A mesa transmission-type photoelectric surface 30 is placed on a glass plate 10 while having a reflection preventing film 20 between them. The glass plate 10 is so supported in one end of a vacuum tube 11 as to set the transmission-type photoelectric surface 30 to face to the vacuum tube 11. A converging electrode 70 to converge photoelectrons (e<-> ), a dynode part 71 to multiply the photoelectrons by secondary electrons, and an anode 40 are successively installed from the transmission type photoelectric surface 30 in the vacuum tube 11. Bias voltage VB is applied to the transmission type photoelectric surface 30 through stem pins 54a, b, electric leads 53a, b, a metal wire 52, a first electrode 50, and a second electrode 51.  With this structure, light to be detected, which is a detection object, efficiently enter the transmission type photoelectric surface 30 without being decayed, photoelectrons are emitted more than those by a conventional method, and the signal current to be detected is also increased.
Patent JP-H04238072-A (JP)
Title: Paper feeder of printer
Inventor: KASHIWABARA KAZUTOSHI
IPC: B41J15/16
Filed: 1991-01-21
Abstract: PURPOSE:To provide a stabilized high precise paper feeder by a method wherein tension is applied to printing paper not only in forward rotation paper transport but also in reverse rotation paper transport. CONSTITUTION:The title paper feeder of a printer is characterized in that an elastic material is provided on a part in which a paper feed roller transports paper while pressing paper and this elastic material is polished in the direction opposite to the paper feed direction in forward rotation paper transport.
Patent JP-H07205052-A (JP)
Title: Power tool device
Inventor: KUBOKURA KUNIAKI
IPC: B25F5/00
Filed: 1994-01-21
Abstract: PURPOSE:To conduct the intercepting action of a power source intercepting means surely when an edge portion in the middle of rotary action has come into contact with or approximated a metal object in a structure. CONSTITUTION:The device is equipped with a ground means 55 to connect a main body case 11 to a ground body 37 electrically; a detecting means 33 to detect a ground electric current running through the ground means 55; a power source intercepting means 34 to intercept the power source circuit of a motor 12 in response to the detection of the detecting means 33; and an electric conductor 19 whose one end is fixed at the main body case 11 and whose other end comes into sliding contact with the outer periphery of an edge portion 25. Even in a case in which a space between the outer ring 26 and the inner ring 27 of a bearing body 14 falls into the state of non-conduction, electric connection between the main body case 11 and the edge portion 25 is secured through the electric conductor 19. Accordingly, reliability in regard to the prevention of accidents such as the cutting off of an electric wire in a metal tube, a motor-driven tool edge portion getting chipped, can be improved.
Patent JP-S63173894-A (JP)
Title: Pump device
Inventor: ENOYA SHINICHI
IPC: F04D15/00
Filed: 1987-01-13
Abstract: PURPOSE:To prevent water hammer by connecting a means of gradually lowering the output of a motor to the part between a power source and the motor winding if a pump and gradually bringing a negative pressure part which is generated on a feed water side at the time of ordinary rotation of an impeller close to atmospheric pressure. CONSTITUTION:The motor winding 11 of a pump motor is connected to an AC power source 12 via a thyristor 13. The gate terminal of the thyristor 13 is controlled by a control means 14 consisting of a microcomputer and based on a voltage applying timing which is previously stored in a memory part 15. At this time, the period from the turn-on to the turn-off of the thyristor 13 is gradually reduced, gradually lowering the output of the pump motor. Thereby, at the time of the ordinary rotation of the impeller of a pump device, a negative pressure part which is generated on a feed water side can be gradually brought close to atmospheric pressure, relieving the backward flow of water to prevent the occurrence of water hammer.