baber/WOPTO huggingface dataset:
Patent JP-H1153829-A (JP)
Title: Disk drive device
Inventor: IIDA MICHIHIKO
IPC: G11B19/247
Filed: 1997-08-05
Abstract: PROBLEM TO BE SOLVED: To reduce vibration due to eccentricity by detecting eccentricity quantity in a state where a disk is chucked and setting the rotation multiplication speed of the disk at the time of recording/reproducing in accordance with eccentricity quantity. SOLUTION: A detection signal obtained from a middle point sensor 20 is used as a middle point error signal Cen and the eccentricity quantity of the disk D is detected. The rotation driving speed at the time of reproduction is variably set in accordance with the eccentricity quantity, for example. When the eccentricity quantity of the disk D is large and comparatively large vibration is generated in a disk drive device in accordance with eccentricity quantity, an objective lens 2 also largely vibrates and it is largely displaced from a reference position. Then, the middle point error signal Cen is detected by the middle point sensor 20 as comparatively large amplitude.  The middle point error signal is supplied to a system controller 10 and the disk D is rotated at rotation speed by which vibration does not occur in the disk drive device in accordance with the eccentricity of the disk D, which is discriminated based on the middle point error signal.
Patent JP-H1052790-A (JP)
Title: Solder powder and solder paste
Inventor: NATORI KATSUHIDE
IPC: B23K35/26
Filed: 1996-08-09
Abstract: PROBLEM TO BE SOLVED: To improve printability and solderability by adding a specified quantity of indium into a solder and specifying the grain size. SOLUTION: In this solder powder, by wt., 0.1-5.0%, indium is added into the solder mainly composed of a tin and lead and the grain size is specified to be 10-40μm. And a solder paste is manufactured by mixing the solder powder with a paste-like flux. This solder powder is characterized by the point that the oxidation of the solder powder is restrained to oxidize by adding a suitable quantity of indium. This is reason why the indium is oxidized earlier than the tin and lead mainly composing of the solder. At this time, the system added a third element such as Ag, Sb, Bi, Zn or the like into a Sn-Pb alloy is also effective. By this way, the effect is extremely large for promoting a fine pitch mounting.
Patent JP-S58113870-A (JP)
Title: Testing method for cable
Inventor: MIYAZAWA YOSHIO
IPC: G01R31/04
Filed: 1981-12-28
Abstract: PURPOSE:To perform a test of a connecting part of a conductor with a connector by making a current flow to the connecting part of the conductor of a cable with the connector, and by detecting the heat generated at the connecting part by means of an infrared sensor. CONSTITUTION:A voltage from a power source 5 is impressed on a signal cable 1 and connectors 2 which are connected to the opposite terminals of the signal cable 1 by connection fittings 4. If the resistance R22 of the connecting part 22 of one conductor 11 of the signal cable 1 with the connector 2 is increased due to the incompletion of the connecting part, a heat is generated corresponding to the increase in the resistance, and said part has a higher temperature than that of infrared rays generated in other parts. Therefore, while a current is made to flow in parallel and simultaneously to the connecting parts of the cable 1 and the connectors 2, an infrared sensor 6 is moved outside along the cable 1 and the connecting parts of the cable 1 and the connectors 2, a very small change in a resistance value is thereby detected, and the reliability of a test can be increased.
Patent JP-H0258821-A (JP)
Title: Manufacture of solid electrolytic capacitor
Inventor: KANEKO ATSUKO
IPC: H01G9/025
Filed: 1988-08-25
Abstract: PURPOSE:To enable a required area of a conductive polymer to be electrolytically polymerized in a short period of time by partially exposing the surface of an anodic base metal on a resist member so that the electrolytic polymerization is started from the exposed part of the metal. CONSTITUTION:A substrate 1 having 36 chips masked with an epoxy resist member 3 is prepared on a forming foil having an oxide coat layer formed on the surface thereof. Using this substrate 1, a first conductive polymer layer of polypyrrole is provided on the dielectric metal oxide coat film on the foil by the vapor phase polymerization, and is washed and dried. Then, 40 to 60mum wide conducting sections 4 in the form of grooves are provided in the resist member 3 such that the underlying metal of the foil is exposed. After the provision of these conducting sections 4, pyrrole is electrolytically polymerized using acetonitrile solution of 0.1M triethylamine boro-disalicylate as a supporting salt. In this manner, the electrolytic polymerization can be finished in 90 minutes with 10mA current. Accordingly, the manufacturing time can be shortened while power consumption is decreased.
Patent JP-S6366654-A (JP)
Title: Synchronous bus
Inventor: TAKAHATA KAZUYA
IPC: G06F13/42
Filed: 1986-09-08
Abstract: PURPOSE:To transfer data at a high speed and in a large capacity by using pipelines to perform three basic actions, i.e., the arbitration, the transfer of data and the acknowledge which are involved in a single data transfer action. CONSTITUTION:A peripheral device which transfers data carries out arbitration to acquire the bus using right. In the next bus clock cycle the peripheral device acquired the bus using right sends data via a data line 2. Then the arbitration is carried out on an arbitration line 1 for the next transfer of data. In a bus clock cycle following the next cycle a peripheral device set at the reception side and received data sends back an acknowledge via an acknowledge line 3. Then the next transfer of data is carried out via the line 2 and the arbitration is carried out on the line 1 for the next transfer of data.
Patent JP-H1155917-A (JP)
Title: Dynamic pressure bearing device, and spindle motor and rotating apparatus dynamic bearing device
Inventor: SHIMAGUCHI HIROMASA
IPC: G11B19/20
Filed: 1997-08-05
Abstract: PROBLEM TO BE SOLVED: To provide a spindle motor which can be thinned and besides which can omit the groove for generation of dynamic pressure in the shaft hole, and a rotor device adopting this spindle motor. SOLUTION: A motor coil 4 provided at the periphery of a fixed flange 1 and a magnet 5 provided at the periphery of a rotor 3 are opposed to each other, and the bearing part 3c at the center of the rotor 3 is sandwiched with the bearing part at the center of the fixed flange 1 and a bearing plate 6, and the bearing plate 6 is supported by the shaft 2 erected from the center of the bearing part 3c.  A dynamic pressure generating groove P1 is made a topside of the bearing part 3c of the rotor 3, and a dynamic pressure generating groove P2 is made at the down face of the bearing part 3c of the rotor 3, and the dynamic pressure generating grooves P1 and P2 are close to the brim of the center hole 3c, and the bearing part 3c of the rotor 3 is thinned, and the distance between the small gaps on both top and bottom sides of the bearing part 3c is made small, thus this dynamic pressure bearing device is so constituted that the thrust dynamic pressure produced in the small gaps on both top and bottom sides works as radial dynamic pressure on the small gap between the center hole 3a and the taper part 2a.
Patent JP-S6452955-A (JP)
Title: Method of executing thick type tile
Inventor: ITO TETSUYA
IPC: E04F13/08
Filed: 1987-08-25
Abstract: PURPOSE: To save the amount of joint sealing material being used and to simplify joint-filling operation by arranging a plurality of tiles on a surface to be executed so that a collar material projecting on the outer-periphery surfaces is doubled in a thickness direction. CONSTITUTION: Rod-shaped collar materials 22 and 24 are sealed to the outer periphery of tiles 14 with a thickness of 20 mm or more so that they project from an outer-periphery surface. Then, the plurality of tiles 14 are arranged on the surface to be executed of a building frame 10 so that their collar materials 22 and 24 are doubled in the direction of the tile thickness, and a joint material 26 is sealed into the gap between the tiles 14. As a result, the collar materials 22 and 24 prevent the joint sealing material 26 from entering the deep part of the gap of the joint material 26 and hence saving the amount of usage of the joint material 26 and at the same time simplifying the joint filling operation.
Patent JP-S58115631-A (JP)
Title: Coating method of solid lubricant to magnetic disk medium
Inventor: FURUYA KAZUO
IPC: G11B5/725
Filed: 1981-12-28
Abstract: PURPOSE:To obtain a magnetic recording medium which has a solid lubricant film with uniform thickness by coating a magnetic disk medium surface with a solid-state lubricant dissolved in a volatile solvent while the magnetic disk medium and solid lubricant are heated. CONSTITUTION:Spin coating is carried out while the magnetic disk medium to be coated with the solution obtained by dissolving the solid lubricant in a volatile solvent or the solution, or the both are heated. For example, after the temperature of the disk is raised to about 80 deg.C, said solution is spin-coated. Drips of the solution on the disk surface volatilize a little bit faster than usual, but even a part where a temperature drop is caused never drops in temperature to the extent that viscosity decreases to cause trouble. Consequently, the magnetic recording medium having the solid lubricant film with uniform thickness is obtained.
Patent JP-S60103605-A (JP)
Title: Device for prevention from discharge on oil surface in oil-filled electric apparatus
Inventor: MAEDA TAKAO
IPC: H01F27/36
Filed: 1983-11-10
Abstract: PURPOSE:To obtain an apparatus having simple construction and superior preventive effect from discharge on an oil surface by holding one shielding electrode in the air over the oil surface and the other shielding electrode in the oil below the oil surface by means of a lead wire and connecting the both electrodes conductively. CONSTITUTION:A pair of shielding electrodes 11 having holes which can pass through a lead wire 6 at their center are engaged into the lead wire 6 by which a winding 2 is connected with a bushing 5. One shielding electrode 11A is fixed to the lead wire 6 by a screw and so forth so as to hold a fixed air gap ga over an oil surface 4A. The other shielding electrode 11B is fixed to the lead wire 6 so as to hold a fixed oil gap go below the oil surface 4A, the both electrodes being conductively connected with each other. The two shielding electrodes are flat ring-like electrodes, of which outer peripheral surfaces are made of round metal for control of an electric field, and they are kept at the same potential as the lead wire to form a low electric field regions at the air gap ga and the oil gap go between the two shielding electrodes 11A and 11B.
Patent JP-S6455575-A (JP)
Title: Developing device
Inventor: NISHIO YUKIO
IPC: G03G15/08
Filed: 1987-08-26
Abstract: PURPOSE:To prevent residual toner from leaking from an insertion opening by providing an air opening part on the inner side of a toner hopper in the insertion direction of a toner cartridge and communicating the air opening part with a developing tank. CONSTITUTION:The inserted cartridge 3 is rotated and a tape 15 is removed to make toner TN falls on a sponge roller 4 from a hole 151, and when the emptiness of a developing tank 2 is detected, the roller 4 rotates to put the toner TN in the tank 2. This toner TN is scooped up by a magnetic roller 6 while agitated by a paddle roller 5, and supplied for development from a development opening part 10. Here, when the compressed air 18 in the hopper when the cartridge 3 is inserted is discharged from the air opening part 7, its flow velocity is extremely fast, but the capacity of the tank 2 is sufficiently large and the opening part 10 extends lengthwise, so the speed of the air flowing in the tank 2 from the air opening part 9 of a ceiling wall 16 becomes slow, internal toner is not scattered, and there is no influence exerted in the tank 2.
Patent JP-S6274520-A (JP)
Title: Machining tool
Inventor: WAKIHIRA KOICHIRO
IPC: B23B51/02
Filed: 1985-09-24
Abstract: PURPOSE:To control stress concentration due to a notch effect and prevent damages such as a crack and a fracture by forming the raised part of a flank in such a way that there will be no step formed in a radial direction at a border between the raised part or a cutter part and a grip part. CONSTITUTION:The flank 1 of a raised part E changes to a curved surface where a notch amount t becomes zero, via a curved surface changing smoothly and continuously from curvature where a notch is constant. According to the aforesaid change of curvature, the radius of curvature at the flank 1 gradually increases and the clearance angle of a cutter 2 gradually nears 0 deg. via theta1, theta2 and theta3 correspondingly. Finally, said angle becomes zero at the position where the notch amount t becomes zero. Also, this position corresponds to a border between a cutter part C and a grip part S and at this position, The radium of curvature of the flank 1 agrees to that of the external surface of the grip part S. Therefore, there is no step formed in a radial direction at the afore mentioned border part. As mentioned in the above, the flank of the raised part shows an arc passing points P1-P4 and there is no such step in a radial direction as generating stress concentration due to a notch effect.
Patent JP-S60103938-A (JP)
Inventor: YAMAZAWA AKIRA
IPC: A61B5/332
Filed: 1983-11-11
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-H0617494-A (JP)
Title: Vacuum body
Inventor: KIDOKORO KATSUYUKI
IPC: E01F8/00
Filed: 1992-07-01
Abstract: PURPOSE:To manufacture a vacuum body made of a thin planar three- dimensional panel reducing the number of part items to be separately prepared for maintaining the interval between outer plates and easy to assemble and mass-produce by using the outer plates integrated with small pieces on substrates. CONSTITUTION:Many small pieces 4 are arranged and integrated on a substrate at the preset positions to form an outer plate 2 so that the outer plate 2 is not bent by the vacuum pressure by the preset amount or above, small pieces are pinched between mating outer plates 2, and a sealing material is fixed on the periphery for sealing. The gas of the space of a hollow section is exhausted from a vacuum pipe 7 seal-jointed to the outer plate 2, and the vacuum pipe 7 is sealed.
Patent JP-H1152279-A (JP)
Title: Resonant scanner
Inventor: UENODAI ASAO
IPC: G02B7/198
Filed: 1997-08-06
Abstract: PROBLEM TO BE SOLVED: To provide a resonant scanner capable of obtaining stable action. SOLUTION: A mirror base 14 is held between a pair of holding pieces 121 and 122 of a mirror holding part 12, both surfaces of the base 14 are fixed on the holding part 12 with adhesive 15, and the surface of the base 14 on a side having the mirror 13 is stuck and fixed on the holding part 12 within a sticking area 16 set so as not to come in contact with the mirror 13.
Patent JP-S6370016-A (JP)
Title: Method to incinerate and melt sewage sludge
Inventor: FURUKAWA TOSHIHARU
IPC: F23G5/32
Filed: 1986-09-09
Abstract: PURPOSE:To shorten the treating time of sludge cake by combustion, and to make a sharp classifying device unnecessary, by dividing sludge cake into granulate of specified range of grain size, and by feeding the granulated sludge cake into a furnace under the specified conditions. CONSTITUTION:Granulate of which grain size is 1-3mm, classified by a screen classifier 8, is fed into a furnace. Blocking or adhesion by soot is not recognized inside a flue. It is also essential that the sludge cake must be stoked under the condition that the loading in a combustion chamber is more than 100X10<4> kcal/m<3>hr, when dry cake of drain sludge of a specified grain size is fed into the furnace. When the dry cake of sewage sludge which is granulated in the range of grain sizes 1-3mm is sucked into the incinerating and melting furnace of cyclone type, carried by compressed air, the granulate goes down swirling along the inside wall of a furnace. During this time, organic content is burnt and is exhausted as a combustion gas 4'' from a flue 4. While inorganic content, accompanying exhaust gas without scattering to the outside of a furnace, is turned into melted slug 5'', dripping down along the inside wall of a furnace, taken out of a slug outlet port 5.
Patent JP-S6275024-A (JP)
Title: Exhaust device for two-cycle engine
Inventor: OKUMURA SHIGEO
IPC: B63H21/32
Filed: 1985-09-27
Abstract: PURPOSE:To restrict output torque and prevent knocking from taking place by making exhaust pressures in exhaust passages interfere with each other, in an exhaust device in which exhaust passages for a first cylinder group and a second cylinder group are independently provided and confluent in the lower course. CONSTITUTION:Cylinders 1, 3, 5 of an engine 10 is defined as a first cylinder group 12R while cylinders 2, 4, 6 are defined as a second cylinder group 12L. Exhaust passages 15R, 15L for each of the cylinder groups are independently provided, and confluent at a confluence 16 in the lower course. The firing order for each of the cylinders is set in such a way that when the exhaust passage for the first cylinder group is under a negative pressure, the exhaust passage for the second cylinder group is under a positive pressure. The confluence is set in a position where the positive pressure and the negative pressure in each of the exhaust passages 15R, 15L are balanced. Thereby, when one exhaust passage is under a negative pressure, the other exhaust passage is under a positive pressure, effecting reduction in said negative pressure, to lower exhaust efficiency and restrict output torque.
Patent JP-H0495540-A (JP)
Title: Automatic switching system for automobile headlight and small light
Inventor: SHIMAOKA YUKIHIRO
IPC: B60Q1/04
Filed: 1990-08-10
Abstract: PURPOSE:To switch a headlight and a small light automatically by outputting a current from a rotational speed detecting adapter interlocking with a speedometer, or stopping this output with the running or stopping of an automobile. CONSTITUTION:When a light combination switch 6 is set to an auto joint 9, a small light is lighted by wiring 10 connecting an interval between a first step joint 7 of the small light and the auto joint 9. When an automobile gets running, the current generated by an amplifier 5 of an adapter 1 flows into a relay 11 by way of another relay 12, thus a headlight is lighted. On the other hand, when the automobile is stopped temporarily, the current being generated out of the amplifier 5 of the adapter 1 runs short, and a switch circuit of the relay 11 is turned off, so that the headlight goes out, and the small light alone is continuously lighted. Therefore a switching between the headlight and the small light can be done automatically.
Patent JP-S58112114-A (JP)
Title: Dc stabilized power supply circuit
Inventor: CHIBA KAZUHIRO
IPC: G05F1/56
Filed: 1981-12-25
Abstract: PURPOSE:To protect an output transistor from a short circuit, by keeping the base current of an output transistor which supplies a current to a load at a certain level when the load side has a short circuit and giving a limit to the output voltage when the output is short-circuited. CONSTITUTION:The non-stabilized DC voltage to be supplied to a voltage input terminal 11 is stabilized by an output transistor TR12 and delivered. An error amplifier 17 compares the stabilized voltage with the reference voltage decided by a bias resistance 13 and a Zener diode 16 and applies them to a driving TR1a after amplification. A short circuit protecting resistance 21 and a short circuit protecting diode 22 are added for the short circuit protection. When the voltage output terminal is short-circuited, the base potential of the TR1a is kept at an ON potential of the diode 22. Thus the collector current of the TR1a, i.e., the base current of the TR12 is reduced, and therefore the output current is reduced.
Patent JP-H0635821-A (JP)
Title: Joint work device
Inventor: KATSURABAYASHI HIROSHI
IPC: G06F11/32
Filed: 1992-07-17
Abstract: PURPOSE:To provide a joint work device which can report the oprations of the joint workers, can select the sure report information, can designate a reporting method and can have a real-time previous arrangement, respectively. CONSTITUTION:A joint work device is provided with a shared data monitoring means 3 which monitors the opration of each worker to the shared data, a reporting level information storing means 9 which stores the reporting level information that decides a mode for reporting the opration of a certain worker given to the shared data to other workers, a reporting information production means 4 which produces the reporting information based on both information given from the means 3 and the means 9, a reporting information decoding means 5 which decodes the received reporting information and decides a reporting mode accordant with the reporting level including the trporting information and a reporting information display means 6 and a reporting information storing means 7 which give the reporting information to the workers based on the reporting mode decided by the means 5.
Patent JP-S58112488-A (JP)
Title: Controlling method for ac commutatorless motor
Inventor: TANAKA SHIGERU
IPC: H02P6/15
Filed: 1981-12-25
Abstract: PURPOSE:To obtain a controller for a commutatorless motor having no variation in the reactive power by controlling the firing phase and current amplitude value of power source side and motor side in response to the effective and reactive power command values of the input terminal of a cycloconverter. CONSTITUTION:An effective current command value I*P is obtained by a multiplier ML from a torque command T* and a command value omega through a control compensating circuit HN(S) and a limiter LIM from the deviation epsilonN between a speed command value omega* and a speed detected value omega. A reactive current command value I*Q is obtained through a control compensator HQ(S) from the deviation epsilonQ between the reactive power set value Q* and the reactive power detected value Q from a reactive power calculator VAR. (I*Q)<2>, (I*P)<2> are respectively calculated by square calculators SQ1, SQ2, are added by an adder A1, and the input current command value I0 is obtained by a square root calculator SQR from a cycloconverter CC. I*P/I*0 is calculated by a divider DIV, the output voltage command value V*0 is obtained from the converter CC through an  operational amplifier KV, and the firing phase angle of the converter CC is controlled on the basis of the deviation epsilon0 between the command value V*0 and the current.
Patent JP-S59106976-A (JP)
Title: Magnetic printer apparatus
Inventor: FUJIOKA NARUSADA
IPC: H04N1/04
Filed: 1983-11-14
Abstract: PURPOSE:To print an image with high accuracy at a high speed, by a method wherein a plurality of head cores are arranged at equal intervals to be moved only over integer-fold at the interval of a recording pitch and, thereafter, operation for moving said head cores only over the distance corresponding to the product of the recording pitch and the numbers of the head cores is repeated while scanning conversion is performed by using a plurality of pattern memories. CONSTITUTION:A magnetic recording head 202 has cores 401-404 which are arranged in one line at min. intervals each of which is the integer-fold of a recording pitch in a head feed direction. The head 202 records lines 1, 5, 9, 13 in zero rotation while scanning the same and, after the recording of third rotation is finished, the head 202 is displaced over 13 lines to start the recording of fourth rotation. Each of pattern memories 603, 604 holds a character pattern corresponding to one line and alternate writing and reading in synchronous relation to recording at every one line. The pattern memory is divided into four corresponding to the regions to be recorded by each head and the address thereof consists of a line number showing a head sending number and the position in a drum circumferential direction.