baber/WOPTO huggingface dataset:
Patent JP-S5551668-A (JP)
Title: Tractor
Inventor: ITOU KATSUMI
IPC: B62D11/00
Filed: 1978-10-04
Abstract: PURPOSE:To enable steering over operation even the amount of handle operation is little and enable small turning by arranging a control mechanism for engaging an angular speed detecting mechanism and a relative speed varying mechansim. CONSTITUTION:The front and rear wheels on the left side are driven by a first and a second hydraulic motors M1 and M2, and the front and rear wheels on the right side are driven by a third and a fourth hydraulic motors M3 and M4 through feeding of pressurized oil by pump, and these four wheels are driven separately. A detector 7 for detecting the revolution operation state of a handle 5 is arranged, and the pulse from the detector 7 is input into a counter 8 and a converter 9, and further input into a handle operation angular speed detecting circuit. A control mechanism 19 is constituted that due to the linkage of the mechanism 11 for detecting the operation angular speed of the handle 5 and a relative speed varying mechanism 17, when the operating angular speed for handle becomes above a prescribed value, the driving speed of the wheels on the handling direction side becomes automatically smaller than that of the wheels on the opposite side.
Patent JP-H02301974-A (JP)
Title: Residual capacity determination method for sealed lead-acid battery
Inventor: SHIOMI MASAAKI
IPC: H01M10/48
Filed: 1989-05-17
Abstract: PURPOSE:To accurately determine residual capacity by measuring it from capacitance data of a battery. CONSTITUTION:Capacitance of a battery is measured by using a power source having a frequency of 1HZ or more, and the residual capacity of the sealed lead-acid battery is determined by this capacitance value. The relation between the residual capacity and the capacitance is linear as shown in the figure. C' = capacitance X number of cells/nominal capacity is found, then the relation between C' and residual capacity is found from the next equation. residual capacity (%) = 2000C'/3-100/3.
Patent JP-2000314058-A (JP)
Title: Method for knitting knit fabric in flat knitting machine
Inventor: KONYA HIDEYUKI
IPC: D04B7/26
Filed: 1999-04-30
Abstract: PROBLEM TO BE SOLVED: To enable to knit a knit fabric excellent in design without using an excess amount of yarn feed package as required and provide a method for knitting a knit fabric without generating end threads requiring treatment in the knit fabric. SOLUTION: This method is to knit a knit fabric in a flat knitting machine having a pair of needle beds arranged in front and rear and, in knitting a predetermined one course of knit fabric by feeding several knitting threads from two or more of thread feed ports through which different kinds of knitting threads are inserted, includes a first process in which the knitting is carried out by plaiting knitting by simultaneously traveling the two or more of thread feed ports with keeping predetermined spaces and simultaneously feeding several knitting threads to each knitting needles and a second process in which the knitting is carried out by using knitting needles of the pair of needle beds with several knitting threads by separately traveling the two or more of thread feed ports.
Patent JP-H02303344-A (JP)
Title: Blower
Inventor: OI SHINICHI
IPC: H02K21/22
Filed: 1989-05-17
Abstract: PURPOSE:To prevent the deformation of the fan of a blower and to maintain the positional relation between the field magnets and armature of the blower constantly by integrally forming reinforcing members at the coupling positions between the vanes and the boss section of the fan and, at the same time, fitting the field magnets to the reinforcing member. CONSTITUTION:This blower 1 is composed of an armature 2 at the center, fan 3 provided above the armature 2 so as to enclose the armature 2, and printed circuit board 4 at the bottom. The fan 3 is manufactured by integrally forming a vane wheel 8 and boss section made of a resin and reinforcing members 10 provided at the coupling position between the wheel 8 and section 9 and, at the same time, arranging field magnets 11 in grooves 10a provided inside the members 10. Since this blower 1 is provided integrally with the members 10 at the coupling position between the wheel 9 and section 9, deformation of the blower 1 due to a temperature change can be prevented. Moreover, since the magnets 11 are put in the member 10, the positional relation between the magnets and armature can always be maintained constantly. Therefore, the blower can be operated stably.
Patent JP-S63289972-A (JP)
Title: Element for low temperature liquid detection
Inventor: SUZUKI HIROYUKI
IPC: H01L39/00
Filed: 1987-05-22
Abstract: PURPOSE:To facilitate the taking of a change in measuring temperature and to upgrade an S/N ratio, by using an element whose ratio R of resistance at a liquid vaporization temperature to that at a room temperature is a specific value or above. CONSTITUTION:A low temperature liquid detection element, whose ratio of resistance at a liquid vaporization temperature to that at a room temperature is 500 or more, is used. An La-Sr-Cu-O material (such as La1.8Sr0.2CuO2) used in said low temperature liquid detection element can be applied as a material whose vaporization temperature is 40K or less. An R0.4Ba0.6CuOx material, in which yttrium or a lanthanum material (R) is used, can be applied as the cryogenic liquid material whose vaporization temperature is 100K or less. For example, a cryogenic liquid (liquefied nitrogen or liquefied oxygen) detection element 1 is mounted on a cryogenic liquid container 3. Supply cocks 41, 42 are opened while no cryogenic liquid 2 exists in the container, and the cock 42 is closed when the cryogenic liquid 2 is detected by the cryogenic liquid detection element 1.
Patent JP-H0419556-A (JP)
Title: Oxygen concentration measuring system
Inventor: KISO SHIGEO
IPC: G01N27/409
Filed: 1990-05-14
Abstract: PURPOSE:To allow the strict measurement management and control of the concn. of PO2 in an ultra-low concn. region by providing an arithmetic unit which computes the concn. of the PO2 from the output of a zirconia cell and the temp. of the zirconia cell and discretely outputs the mantissa part and exponent part thereof. CONSTITUTION:The output of the zirconia cell 4 is amplified by an amplifier 5 and is directly outputted as the output of the cell 4 and is, in the meantime, subjected to A/D conversion 6. The temp. of the cell 4 is detected by a thermocouple 7 and the output thereof is also amplified by an amplifier 8 and is converted 6. The converted 6 oxygen concn. signal and temp. signal are inputted to the arithmetic unit 9 which computes the value of the concn. of the PO2, determines the mantissa part and exponent part of the results of the computation and discretely outputs the mantissa part and exponent part by digital signals. The output signal of the mantissa part is subjected to D/A conversion 11. The concn. of the PO2 in the oxygen atmosphere of an ultra-low concn. is measured by one system of the output system.
Patent JP-H01294229-A (JP)
Title: Focus servo device
Inventor: OTOGAWA MITSUHIRO
IPC: G02B7/28
Filed: 1988-05-23
Abstract: PURPOSE:To perform stable focus servo by providing a means which sets the level of a focus error signal to a certain value in accordance with the reflectivity of a disk. CONSTITUTION:A focus error detecting optical sensor 17 has four light receiving 17a-17d, and a differential amplifier 18 is provided for differences of light receiving faces. When a disk having a high reflectivity is inserted, the output voltage of the differential amplifier 18 is increased, and the output voltage of a memory 5 is increased, and the turning-on resistance of a transistor TR 3 is reduced, and the gain is so controlled that a focus error signal 12 is reduced. When a disk having a low reflectivity is inserted, the gain is so controlled that the signal 12 is increased. Thus, the gain of the focus servo system is kept at a certain value.
Patent JP-H01293684-A (JP)
Title: Semiconductor laser element
Inventor: KURIHARA HARUKI
IPC: H01S5/00
Filed: 1988-05-23
Abstract: PURPOSE:To obtain an excellent far field pattern by a method wherein a width of two auxiliary grooves is increased continuously as the grooves advance from a boundary between the neighborhood of end faces of a resonator and the central part of the resonator toward the end face of the resonator in order to make a bend of an active layer gentle. CONSTITUTION:A current-blocking layer 2 composed of n-type GaAs is formed on a p-type GaAs substrate 1 by liquid epitaxial growth; after that, a main groove 11 and two auxiliary grooves 12, 13 are formed by etching. A width of the auxiliary grooves 12, 13 is increased continuously as the grooves approach end faces of a resonator from a boundary at the central part of the resonator. Then, a P-type clad layer 3, a p-type active layer 4, an n-type clad layer 5 and an n-type ohmic contact layer 6 are formed one after another. Then, metal electrode layers 7, 8 are formed; after that, this assembly is cut to be chip- shaped; a laser element is obtained. By this setup, a bend of the active layer in a longitudinal direction of the resonator becomes gentle; a far field pattern can be made good.
Patent JP-H11307346-A (JP)
Title: Common mode filter using compound magnetic material
Inventor: AKINO NAOHARU
IPC: H01F17/06
Filed: 1998-04-20
Abstract: PROBLEM TO BE SOLVED: To enable restraining the electromagnetic disturbance noise of common mode ranging from a MHz band to a GHz band which travels on a line, by using compound magnetic material whose main component is Si-Fe based metal magnetic powder having a scale shape or the like, and improving the frequency characteristic of the impedance. SOLUTION: Two penetrating conducting members 12 are made to penetrate through and fixed on a compound magnetic member 10, constituted of a molded member of compound magnetic material whose main component is scale-shaped Si-Fe based metal magnetic powder. Parts which stretch to both sides of the compound magnetic member 10 are made as external terminals 13. A space between the two penetrating conducting members 12 is prevented from the infiltration of the compound magnetic material, and a common through-hole part 11 is formed to the two penetrating conducting members 12.
Patent JP-H10313647-A (JP)
Title: General purpose type combine
Inventor: HAMADA KENJI
IPC: A01D67/00
Filed: 1997-05-14
Abstract: PROBLEM TO BE SOLVED: To solve such a problem that a front view field can not be secured when viewing from a maneuvering part since the maneuvering part is arranged on the side of a feeder house in the right front part in the advancing direction of a machine body frame. SOLUTION: In this general purpose type combine, in which a cutting part C is arranged through a feeder house 12 to a machine body front part and a threshing part D provided with the threshing cylinder 6 of a screw type, a sorting device and a grain tank 4 are mounted to a rear part, the left-and- right center of the feeder house 12 is offset and arranged to the left-and-right center of the platform 14 of the cutting part C, the maneuvering part A is arranged on the feeder house 12, the front end of the maneuvering part A is almost matched with the front end of the feeder house 12 in a side view and also the rear end of the maneuvering part A is almost matched with the rear end of the feeder house 12.
Patent JP-S5826247-A (JP)
Title: Two-wavelength spectrophotometer
Inventor: KOMORI RITSUO
IPC: G01N21/27
Filed: 1981-08-10
Abstract: PURPOSE:To perform measurement in the range that no proportionality to density is lost, by connecting an alarm device to a circuit amplifying a signal having larger absorbance in a two-wavelength spectrophotometer. CONSTITUTION:Light including comparatively near wavelengths lambda1, lambda2 is absorbed by a sample housed in an absorption cell 4 and the difference between these absorbances is recognized. The difference is detected by a detector 5 for a wide area and is amplified by a preamplifier 6. The light of lambda1 is amplified by an amplifier circuit 8a and the light of lambda2 is moreover amplified by an amplifier circuit 8b through a changeover switch 9. Both of them enter a subtraction circuit 9 and are converted into an output signal 10 by carrying out an operation and then, are recorded on a recorder. The absorbance of lambda1 is proportional only when the density is low, but the absorbance of lambda2 is proportional in a fairly wide range of the density. An alarm device 12 is connected to the output side of the circuit 8b of lambda2 and the accuracy of an analysis is maintained by giving an alarm in losing proportional properties of a calibration curve due to preliminarily found lambda2.
Patent JP-S57111824-A (JP)
Title: Degausser of magnetic head
Inventor: SHIMOZAWA KIYOSHI
IPC: G11B5/465
Filed: 1981-08-10
Abstract: PURPOSE:To realize simple degaussing of a magnetic head, by providing movably a degaussing electromagnet that produces an AC magnetic field which attenuates as the time elaspses. CONSTITUTION:A large-capacity capacitor 3 is charged when a changeover switch 5 is switched to the battery side, and a degaussing electromagnet is made to touch a magnetic head 6 to be degaussed. Interlocking to this action,  the switch 5 is changed to the side of a driving circuit 2. As a result, the electric charge of the capacitor 3 is supplied to the circuit 2. And the terminal voltage of the capacitor 3 is reduced as the time elapses. Accordingly, the AC magnetic field generated by the magnet 1 is reduced as the time elapses. Thus the degaussing is carried out automatically for the head 6.
Patent JP-H05299666-A (JP)
Title: Semiconductor device
Inventor: UDA NAONORI
IPC: H01L29/80
Filed: 1992-04-16
Abstract: PURPOSE:To provide a basic structure of a semiconductor device in which an amplifier having excellent high frequency characteristics and low input impedance, a small-sized switching element having excellent performance and small size, and a device for obtaining a stable microcurrent can be manufactured. CONSTITUTION:A nondoped AlGaAs layer 4 as a tunnel layer is laminated on an n<+> type GaAs layer 3 of a channel layer between an emitter electrode 7 and a collector electrode 8, and part of a current flowing in the channel layer (n<+> type GaAs layer 3) is passed through the tunnel layer (the layer 4) in a direction perpendicular to the flow by a tunnel effect, and output as the tunnel current to the side of a base electrode 6.
Patent JP-H09307128-A (JP)
Title: Manufacturing equipment and method of thin film photoelectric transducer
Inventor: FUJIKAKE SHINJI
IPC: H01L31/04
Filed: 1996-05-20
Abstract: PROBLEM TO BE SOLVED: To form a photoelectric conversion layer having high quality multilayered structure with height productivity by forming each thin film on a belt type flexible substrate wound up from one roll to the other roll. SOLUTION: In a stepping roll system which stops a substrate and form a film, an intermediate storing mechanism capable of storing substrates 1 for one frame, such as movable roll mechanism, is installed between a plurality of reaction chambers for film formation. The movable roll mechanism consists of, e.g. two carrying rolls 4 and a movable roll 5. Thereby the opening time of each reaction chamber can be shifted and mutual diffusion of reaction gas can be restrained, so that the conventional evacuation time for preventing mutual diffusion is made unnecessary. As a result, the tact time can be reduced by 17-20%.  In a roll to roll film forming system which continuously forms a film while moving a substrate, mutual diffusion of reaction gas between reaction chambers is restrained and film quality is improved, by installing a valve mechanism 55 with a roll between the reaction chambers in which mechanism a movable roll mechanism 54 and gate valves 20 are combined.
Patent JP-H09308230-A (JP)
Title: Boosting converter
Inventor: ISHII TAKUYA
IPC: H02J1/02
Filed: 1996-05-20
Abstract: PROBLEM TO BE SOLVED: To reduce the recovery current of diodes by adding a series circuit, comprising the primary winding of a transformer and a switching means, and a series circuit, comprising the secondary winding of the transformer parallel- connected across the output terminals of a boosting converter and a diode. SOLUTION: A boosting converter is constituted of a choke 2, a first switching means 3 and a first diode 4. A series circuit comprising primary winding 71 and a second switching means 8 is parallel-connected with the first switching means 3. A series circuit comprising secondary winding 72 and a second diode 9 is parallel-connected with an output capacitor 5. A fly-back converter is constituted of the transformer 7, the second switching means 8 and the second diode 9.
Patent JP-H10321942-A (JP)
Title: Light emitting semiconductor device
Inventor: KAMIMURA NOBUYUKI
IPC: H01S5/343
Filed: 1997-05-14
Abstract: PROBLEM TO BE SOLVED: To increase the light emitting characteristic and reduce the operating voltage, by forming an AIN semiconductor layer for preventing the diffusion of impurities between an active layer and a clad layer. SOLUTION: The deposition of a pair of a barrier layer 16a and an active layer 16b is repeated five times, and then another barrier layer 16a is deposited on the multilayered film to form a multiple quantum well layer 16. Then, a second guide layer 17 is grown on the multiple quantum well layer 16. Furthermore, an AlN (1) layer 181a is grown on the guide layer 17 and a GaN (10) layer 182a is grown on the AlN (1) layer 181a. In the same manner, AlN layers 181b-181k and GaN layers 182b-182k are alternately grown, and finally an AlN (1) layer 181 1 is grown on the GaN (10) layer 182k to form a diffusion preventing layer 18. After that, a p-type clad layer 19 is grown on the diffusion preventing layer 18.
Patent JP-H06332236-A (JP)
Title: Electrostatic charge developer
Inventor: UMENO TOMOYASU
IPC: G03G9/08
Filed: 1993-05-26
Abstract: PURPOSE:To enable the formation of images which are free from fogging and do not generate partial missing of the images, black dots, etc., by using an org. photosensitive body contg. a specific polycarbonate resin into a charge transfer layer and adding and mixing two kinds of inorg. particulates to and with the developer. CONSTITUTION:The org. photosensitive body provided with the charge transfer layer contg. a charge transfer material and the polycarbonate resin expressed by at least either of formula I or formula II is used. The developer added and mixed with the coloring particles and two kinds of the inorg. particulates is used. The inorg. particulates consist of the inorg. particulates A having 5 to 20nm primary particle size and the inorg. particulates B of 30 to 500nm primary particle size and are so formed as to satisfy ¦phi1-phi2¦<=0.4 when the work function of the org. photosensitive body is defined as phi1 and the work function of the inorg. particulate B as phi2. In the formulas I, II, R1, R2 are hydrogen atoms, hydrocarbon groups, arom. groups, etc., and at least one thereof are >=3C bulky groups; R3 to R10 are hydrogen atoms, halogen atoms, hydrocarbon groups, etc.; Z is an atom group necessary for forming a carbon ring and heterocycle.
Patent JP-H09312567-A (JP)
Title: Control circuit for pll frequency synthesizer
Inventor: KAMIKUBO YASUNOBU
IPC: H03L7/183
Filed: 1996-05-20
Abstract: PROBLEM TO BE SOLVED: To reduce the current consumption of a PLL section without losing features of low noise and high speed lock-up of the fractional N system by configuring the control circuit whose N-value changes with each reference cycle through the combination of a frequency divider circuit and a logic circuit. SOLUTION: A fractional N control circuit whose N value is changed with each reference cycle is configured by the combination of a frequency divider circuit (D flip-flop circuits 25, 27) and logic circuits (an exclusive OR circuit 26, AND circuits 20-30, and an OR circuit 32) by taking a timing of output of a carry signal into account in advance so as to use a frequency comparatively lower than that of a conventional circuit adopting feedback control. Thus, the low current consumption of a PLL section is attained without losing features of low noise and high speed lock-up of the fractional N system and a delay from a reference clock is minimized.
Patent JP-H0421789-A (JP)
Title: Formation of composite film on steel sheet or galvanized steel sheet
Inventor: OGINO RIKUO
IPC: C23C28/00
Filed: 1990-05-15
Abstract: PURPOSE:To enhance corrosion resistance and coating properties of the surface to be treated by depositing the film of specified metal and metal-lic oxide on the surface of steel sheet by cathodic electrolysis and forming a chromate film and a high polymer resin film on one side thereof. CONSTITUTION:A film of metal and metallic oxide having 3-150mg/m<2> is deposited by cathodically electrolizing steel sheet or galvanized steel sheet at 0.3-30.0A/m<2> and 0.3-10.0C/dm<2> amount of electricity in an alkaline metallic aq. aoln. contg. an alkali component such as alkali metallic hydroxide, 0.001-0.6 mol/[ metallic ion such as Fe and Ni and ammonium hydroxide wherein total of ammonium group, etc., is regulated to mol concn. of six times for metallic ion. After this film is washed by water, a chromate film layer of 10-150mg/m<2> expressed in terms of metallic chromium is formed on one side. The film layer of organic high polymer resin contg. 10-120 parts silica sol for 100 parts solid is formed at 0.1-5.0g/m<2> thereon. One side with a double layer film formed thereon is excellent in water resistant secondary adhesive property. The other side is excellent in workability and weldability.
Patent JP-S5458818-A (JP)
Title: Chopper circuit fault detection
Inventor: KATOU AKIRA
IPC: H02M3/135
Filed: 1977-10-19
Abstract: PURPOSE: To detect the fault of a thyristor without applying current to a motor by obtaining output through a combination of the gate signals to the main and sub thyristors after the current of a supplementary charge circuit is detected and passed through an AD converter.  
     CONSTITUTION: After the charge current of a circuit consisting of the main thyristor 1 to control motor current, commutation circu9t 2, and DC power 8 is detected and passed through an AD converter 15, a signal 17 without gate pulse to the main and sub thyristors 1 and 6, signal 19 with the gate pulse to the sub thyristor 6, and signal 21 with the gate pulse to the main and sub thyristors 1 and 6 are compared with this signal by comparators 18, 20, and 22 and applied to a comparison amplifier 23, then a display unit 24 is operated. Accordingly, both thyristors are normal only when the output of each comparator is 0, 1, and 0. As a result, the fault can easily be determined 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H05323091-A (JP)
Title: Condensed water purification device for reactor power plant
Inventor: YAMAMOTO TETSUO
IPC: G21D3/08
Filed: 1992-05-18
Abstract: PURPOSE:To eliminate iron component in water effectively by increasing the proportion crystal iron in condensed water for making water characteristic easy for filtering. CONSTITUTION:To a boiling water reactor 1, a turbine 2 is connected, a low pressure condensed water pump 4 is connected downstream of a condenser 3 connected with this turbine 2 and an oxygen injection device 5 is connected in the branch from the delivery of the low pressure condensed water pump 4. To the delivery of the low pressure condensed water pump 4, a condensed water filter 6 containing a hollow string film filter 7 is connected and in the downstream of the condensed water filter 6, a condensed water demineralizing tower 8 and a high pressure condensed water pump 9 are connected. Pure water is supplied by the high pressure condensed water pump 9 to the boiling water reactor 1. To the condensed water filter 6, the condensed water controlled with the oxygen injection device 5 is supplied.