baber/WOPTO huggingface dataset:
Patent JP-H09140180-A (JP)
Title: Motor speed controller
Inventor: SHINGYOUCHI MITSURU
IPC: H02P29/00
Filed: 1995-11-09
Abstract: PROBLEM TO BE SOLVED: To provide a motor speed controller for settling the motor speed at a target speed quickly when a motor reaches the target speed. SOLUTION: At the time of accelerating a motor 19 to a target speed or decelerating the motor 19 therefrom, speed control is performed by the rising voltage V of a rising voltage generation circuit 16. When a target speed is reached, an MPU 21 predicts a phase difference at the time of synchronism based on the target speed and produces a reference signal R having a phase difference δθ from an encoder pulse signal E and frequency corresponding to the target speed. A phase comparison circuit 11 receives the reference signal R and deliver a phase error signal Vθ, corresponding to the phase difference from encoder pulse signal E, to an adder 13. The adder 13 adds an offset voltage V0 to the phase error signal Vθ which is then delivered to a motor driver 18.  After waiting a time (T/2-<δT) determined one half of a period T corresponding to a target speed and a time δT obtained from the phase difference δθ, the MPU 21 inverts the reference signal R and then inverts the reference signal R at a period of T/2.
Patent JP-H07231468-A (JP)
Title: Radio selective call receiver incorporated with radio modem for computer
Inventor: MIYASHITA YUKIO
IPC: H04W84/02
Filed: 1994-12-20
Abstract: PURPOSE:To confirm a reception message of a carrying party immediately when a radio modem is carried by connecting a computer use radio modem and a carrying case with 1st and 2nd connection sections so as to form the radio selective call receiver. CONSTITUTION:A radio modem 10 and a carrying case 30 are connected by connection sections 50a, 50b. An ID memory 18 stores its own call number in the radio modem 10. A decoder 16 detects the coincidence between a call signal in a radio signal and its own call signal, provides an output of a coincidence signal and of succeeding message information. Upon the receipt of the coincidence signal, a message control section 22 stores message information to a message memory 20. A PCMCIA interface 24 provides message information to a notice control section 34 of the carrying case 30. Upon the receipt of the message information, the control section 34 displays a message on an LCD 42.
Patent JP-H04188056-A (JP)
Title: Gas detecting element
Inventor: KOSHIZAKI NAOTO
IPC: G01N27/00
Filed: 1990-11-22
Abstract: PURPOSE:To improve the sensitivity and the selectivity of gas by laminating a different kind of metal oxide semiconductor film on a metal oxide semiconductor film, laminating a different kind of metal oxide film furthermore on the metal oxide semiconductor film, and forming the three-layer structure. CONSTITUTION:In a gas detecting element, CuO of a metal oxide semiconductor film and NiO of a film are combined, and four kinds of arrangements (a - b - c) are constituted. Currents are conducted through both electrodes (d) and (d) of these gas detecting elements. The changes in electric resistances before and after the introduction of the gas are measured under the constant temperature. At this time, the gas detecting elements are arranged in the atmosphere of air having the concentration of 100ppm of hydrogen H2. The changes in electric resistances before and after the introduction of the hydrogen are measured. As a result, the sensitivity is higher in the element wherein the different kinds of the metal oxide films are combined in comparison with that of the gas detecting element having the three-layer structure wherein the metal oxide semiconductors in a single kind are combined.
Patent JP-H05161380-A (JP)
Title: Motor drive circuit
Inventor: ISHIDA TSUNEHISA
IPC: H02P7/288
Filed: 1991-11-29
Abstract: PURPOSE:To keep the number of revolutions of a motor constant against the fluctuation in a supply voltage over a wide range by correcting the difference in current characteristics generated between a reference transistor and current regulation transistor, as the supply voltage changes, through providing a correction resistor and through causing a compensation current to flow. CONSTITUTION:When the number of revolutions of a motor M lowers due to a load becoming heavier, etc., a counter electromotive force lowers, the potential of the connection of voltage divider resistors RA and RB rises and an error amplifier OP operates so that the current quantity of a reference transistor QA and current regulation transistor QB becomes higher and the number of revolutions of the motor M is maintained at a constant value. For the purpose of compensating the difference in characteristics of the reference transistor QA and current regulation transistor QB accompanying the fluctuation in a supply voltage VCC, in this case, a correction resistor RV with high value of resistance is connected between the connection of resistors RT and RA and earth and a current proportional to the potential of the connection of the resistors RT and RA is caused to flow so that a motor M is rotated at a constant speed also against the fluctuation in the supply voltage.
Patent JP-H07168286-A (JP)
Title: Device for moving back and forth
Inventor: SAITO MASANORI
IPC: H04N1/04
Filed: 1993-12-16
Abstract: PURPOSE:To provide a device for moving back and forth capable of always stably actuating a carriage from the initial state of the real use and keeping the relative positional accuracy, the driving accuracy, the speed fluctuation and positional errors high accurate. CONSTITUTION:This device is provided with the carriage 8 equipped with an optical member, etc., a needle 11a constituted of a rotor or a slider attached to the carriage 8, and a guiding member 9 supporting the carriage 8 in contact with the needle 11a and extended in a direction where the carriage 8 is moved back and forth so As to guide the carriage 8 to move forward and move backward. A recessed part 21 having a specified size is formed at an abutting part A where the needle 11a abuts on the guiding member 9 before the real use of a device body by which the carriage 8 is moved back and forth.
Patent JP-H02162205-A (JP)
Title: Pattern checking apparatus
Inventor: OKA KOJI
IPC: H05K3/00
Filed: 1988-12-16
Abstract: PURPOSE:To make it possible to take out a pattern in a wiring part positively even if a region whose light reflectivity is small is present in the wiring part by adding an optical system for detecting a three-dimensional pattern. CONSTITUTION:Scanning is performed with laser light through a rotary polygonal mirror 7. The light is condensed in a spot shape through a scanning lens 8. The light is inputted into an object 2 in the vertical direction through a mirror 9. An optical scanning line (the moving locus of an optical scanning point) is formed on the object 2. The image of the scanning line is formed in the slant direction (angle theta) with respect to the laser incident direction through an image forming lens 10 for the optical scanning line. The optical cut image corresponding to the shape of the surface of the object 2 is split into two parts on the image splitting line by an image splitter 12 on the image forming plane. The integrated value of optical energy of each image is detected with an optical sensor A or B. Then a detected height signal H can be obtained by operating H=(A-B)/(A+B) (where A and B are the outputs of the sensors A and B >=0) in a height operating circuit 17.
Patent JP-H05151559-A (JP)
Title: Magnetic recording medium
Inventor: GOTO YOSHIKI
IPC: G11B5/64
Filed: 1991-11-29
Abstract: PURPOSE:To obtain the magnetic recording medium which has a good traveling property and durability and is usable under all environmental conditions by forming a carbon protective film on a thin-film type magnetic recording medium layer and a long-chain alkyl silane compd. layer thereon. CONSTITUTION:The magnetic recording medium is constituted by forming the thin-film type magnetic recording medium layer 2 on a nonmagnetic substrate 1, forming the protective layer 3 consisting of CVD carbon thereon and further forming a lubricative layer 4 contg. the branch type long-chain alkyl silane compd. thereon. The lubricative layer contg. 1 kind or more of compds. contg. 16 to 24C branch type hydrocarbon chains and others, such as halogen and alkoxy group is used as the lubricative layer 4. The magnetic recording medium with which the smooth contact state of decreased wear with mechanism parts, such as heads, posts and cylinders, at the time of traveling of the magnetic recording medium is assured and which has the excellent traveling resistance and durability is obtd. by providing the carbon protective layer 3 and the lubricant 4 of the long-chain alkyl silane compd. layer in such a manner.
Patent JP-H05345737-A (JP)
Title: Production of bisphenol a
Inventor: ASAOKA SACHIO
IPC: C07C39/16
Filed: 1992-10-30
Abstract: PURPOSE:To provide the method for producing highly pure bisphenol A. CONSTITUTION:The method contains a reaction process for reacting acetone with an excessive amount of phenol in the presence of an acid catalyst to produce the bisphenol A, a separation process for separating the reaction products, a crystallization process for crystallizing the crystal adduct of the bisphenol A to the phenol, a crystal product-separating process for separating the crystal adduct from the mother liquid, a crystal adductliquidizing process for liquidizing the crystal adduct, a phenol-removing process for removing the phenol from the phenol solution containing the bisphenol A, and a bisphenol A-granulating process for granulating the bisphenol A, and further containing an acetone- circulating process for circulating the acetone separated from the separation process in the reaction process, etc.
Patent JP-H09184763-A (JP)
Title: Method for measuring color stimulas value of semi-transparent object and device for performing measurement
Inventor: BERNER MARKUS
IPC: A61C19/10
Filed: 1996-11-27
Abstract: PROBLEM TO BE SOLVED: To accurately measure the color stimulas value of semi-transparency by performing a plurality of measurements having different illuminating areas and measuring areas, calculating a correction value according to the refernce value measured from a reference object, correcting the measured values thereby, and determining a color stimulas value whose transparency is under examination. SOLUTION: An opaque reference object is brought into contact with a probe head 8 to start measurement, and lamps 11 and 12 are lit up in sequence, then the reflected light is transmitted through a lens 21 and an optical conductor 22 to a spectrometer 23, and the analog signal that is divided into spectral elements and converted thereby is digitalized 24 and stored in a memory module 32. Thus two reference measured values are obtained. Next, a test object M is allowed to be close to the probe head 8, and the measurement is carried out corresponding to the reference object, so that the measured value is evaluated and stored. Then, a remission spectrum is calculated according to all spectral measured values. Furthermore, a correction corresponding to the optical loss due to semi-tranparency is added to the remission data so as to evaluate the color stimulas value of the test object.
Patent JP-H10158228-A (JP)
Title: Production of n-acetylethylenediamine
Inventor: HARA YASUSHI
IPC: C07C231/06
Filed: 1996-11-27
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as a pharmaceutical intermediate without the production of N,N'-diacetylethylenediamine as a by-product by using a specific catalyst. SOLUTION: This compound, i.e., N-acetylethylenediamine is obtained by reaction between ethylenediamine, acetonitrile and water in the presence of a catalyst selected from the group consisting of (A) an organic acid salt, e.g. a carboxylate or a sufonate, especially a monocarboxylate of a metal, e.g. zinc or copper, (B) an inorganic acid salt, e.g. a chloride or a nitrate of a metal, e.g. zinc or copper, (C) a metal oxide, e.g. copper oxide or zinc oxide, combined with an organic acid, e.g. a carboxylic acid or a sulfonic acid, especially a monocarboxylic acid, and (D) a metal oxide, e.g. copper oxide or zinc oxide, combined with an inorganic acid, e.g. hydrochloric acid or nitric acid, wherein the reaction is carried out in a liquid phase at 100-300 deg.C by using optionally a fixed bed or a suspended bed.
Patent JP-H04187812-A (JP)
Title: Exhaust manifold fixing structure
Inventor: AKIYAMA KOICHI
IPC: F02B77/00
Filed: 1990-11-21
Abstract: PURPOSE:To alleviate a thermal stress and prevent any generation of gas leakage by forming a space for alleviating the thermal stress between a bolt hole and a shaft portion of a bolt, and disposing a flange pressing member between cylinder head fixing flanges and a head portion of the bolt. CONSTITUTION:Cylinder head fixing flanges 1f are independently provided at ends of branch pipes 1a, 1b, 1c, 1d, respectively. A space 6 is formed between a bolt hole 1h and a shaft portion of a bolt 4. Since the bolts 4 are tightened via a flat flange pressing member 5, the cylinder head fixing flanges 1a-1d are moved together with the thermal expansion/contraction of an exhaust manifold 1 so that a thermal stress caused by the thermal expansion/contraction of the exhaust manifold 1 can be alleviated sufficiently. Because the flange pressing member 5 is disposed across the cylinder head fixing flanges 1a-1d, vertical bending rigidity with respect to a flange fixing surface becomes high, thus eliminating any possibility of gas leakage from between the cylinder head fixing flanges 1a-1d and a gasket 3.
Patent JP-H07165845-A (JP)
Title: Molding resin composition
Inventor: SUGAWARA MASANORI
IPC: C08F283/01
Filed: 1993-12-16
Abstract: PURPOSE:To obtain a composition excellent in mechanical strengths, impact strength and curing cracking resistance. CONSTITUTION:This composition comprises 50-85wt.% epoxy resin modified unsaturated polyester obtained by reacting a carboxyl-terminated unsaturated polyester (A) obtained by esterifying 2mol of maleic anhydride with 1mol of a glycol component having a bisphenol skeleton in the molecule and having at least two hydroxyl groups with an epoxy resin (B) having a bisphenol skeleton in the molecule and at least two epoxy groups, and 15-50wt.% reactive diluent having at least one ethylenic unsaturation in the molecule.
Patent JP-H11150252-A (JP)
Title: Color solid-state image-pickup element and its manufacturing method
Inventor: HORIUCHI SHUNJI
IPC: H01L27/146
Filed: 1997-11-19
Abstract: PROBLEM TO BE SOLVED: To eliminate defect failures due to peel-off and turn up by increasing a adhesion property with the foundation of a color filter, without increasing development residue and sensitivity nonuniformity. SOLUTION: A color filter layer 6G (green) of color with a maximum ratio of the sum of an area being occupied in an image-pickup region is formed as the lowest (first) color filter layer. For the first color filter layer, the end parts of color filter layer 6R (red) and 6B (blue) of each layer of a second layer or more are made to overlap with the end part of the first color filter layer.
Patent JP-H07176445-A (JP)
Title: Manufacture of soft magnetic thin-film
Inventor: KIYOUHO MASANORI
IPC: H01F10/14
Filed: 1993-12-17
Abstract: PURPOSE:To provide a thin film with good soft magnetic characteristics and high saturation magnetic flux density, by specifying a ratio of N. gas and a temperature of a substrate for forming an Fe-Si-N thin film in a sputtering step. CONSTITUTION:An Fe-Si-N thin film is formed by sputtering in an Ar-N2 mixed gas atmosphere. The substrate is heated at a temperature Tsub1, the heat treatment after film formation is carried out at a temperature Ta, and the mixed gas includes N2 and Ar gases of volume VN and VAr, at 0 deg.C under one atmosphere pressure, respectively. With the temperature Tsub of the substrate, given by 150 deg.C <=Tsub <=250 deg.C and the heat treatment temperature Ta, given by Tsub < Ta <=500 deg.C, the ratio of the N2 gas in the mixed gas and the substrate temperature Tsub are adjusted in such a relation expressed by a formula. In this way, the Fe-Si-N thin film has good soft magnetic characteristics in a wide temperature range from 150 to 500 deg.C, and at the same time a high saturation magnetic flux density can be obtained.
Patent JP-H05152685-A (JP)
Title: Semiconductor light-emitting element
Inventor: YAMAMOTO MOTOYUKI
IPC: H01S3/10
Filed: 1991-12-02
Abstract: PURPOSE:To change the arrangement of atoms in a luminous layer and to control the oscillation wavelength of an InGaAlP semiconductor light-emitting element into a short wavelength at low cost by a method wherein in the InGaAlP semiconductor light-emitting element, which has at least the luminous layer on a III-V compound semiconductor substrate and has P-type and N-type optical confinement layers respectively on both sides of the luminous layer, an ion implantation of a P-type impurity is performed up to the luminous layer and the impurity is heat-treated. CONSTITUTION:An N-type InGaAlP clad layer 111, an undoped InGaAlP luminous layer 112, a P-type InGaAlP clad layer 113 and an N-type GaAs layer 114 are continuously grown on a GaAs semiconductor substrate 110 by an MOCVD growth method. After that, one part of the layer 114 is removed in a stripe form 115 and Zn ions are implanted in this stripe part 115 by an ion implantation deice. The Zn ions are implanted up to a luminous layer 116. This substrate is again put in an MOCVD device and a P-type GaAs layer 117 is grown. The arrangement of atoms in the luminous layer is changed by an ion implantation and a heat treatment.
Patent JP-H08177378-A (JP)
Title: Two-stage shield machine
Inventor: SONODA TETSUJI
IPC: E21D9/087
Filed: 1994-12-21
Abstract: PURPOSE: To smoothly start a slave shield by easily separating the slave shield from a master shield, and preventing the unexpected rotation or displacement of a cutter ring after the separation. CONSTITUTION: This machine is equipped with a jointing device 26 capable of jointing the cutter ring 20 of a master shield 2 to the cutter disc 21 of a slave shield 3, as well as a fixing device 40 for fastening the cutter ring 20 to the master shield 2 after the separation of the cutter ring 20 from the cutter disc 21. Also, the device 26 is formed out of pins capable of projection along the radial direction of a shield body, and bosses for allowing the pins to be coupled. When the surface of the cutter disc 21 is taken as an X-Y plane, and the shaft of the slave shield 3 as a Z-axis, the displacement of some bosses along the X-axis direction is constrained, while the displacement of other bosses along the Y-axis direction is constrained. Furthermore, the displacement of remaining bosses along the Z-axis direction is constrained.
Patent JP-H08179589-A (JP)
Title: Contact charger and manufacture of charge member
Inventor: HIRAI YOSHIHIRO
IPC: F16C13/00
Filed: 1994-12-21
Abstract: PURPOSE: To reduce the charge noise of a charge roller and to abtion uniform charge on a surface to be charged. CONSTITUTION: A core metal is surrounded by an elastic layer 2b and further, it is covered with a surface layer 2c to form the charge roller 2A. In the boundary surface 2b1 of the elastic layer 2b, fine holes G having reqularity in size, shape and array formed. Thus, the variance of the resistance value of the charge roller 2A is reduced. Grooves may be used as well instead of the fine holes G. Theses fine holes or grooves are formed by irradiation with leser beams for instance.
Patent JP-H04189027-A (JP)
Title: Output buffer circuit
Inventor: FUJINO YOSHIYUKI
IPC: H03K19/0175
Filed: 1990-11-22
Abstract: PURPOSE:To reduce output noise and to decrease a delay of an output signal lower due to deviation in timing by deviating an operating timing of each output broadcast circuit even when an input signal enters simultaneously the plural output buffer circuits. CONSTITUTION:When an input signal D1 changes from H to L with a control signal OE set to L, an output signal Dout1 of an output buffer circuit 10 reaches a high impedance. Moreover, a pulse generating circuit 7 detects the leading/ trailing of the input signal D1 to generate a pulse signal P1 whose timing is adjusted to have a wider pulse width than that of a pulse P0 in such a way that the pulse falls down when a change in the signal Dout1 is finished. Then its output is inputted to a buffer circuit 11 receiving an input signal D2 in which the similar operation is implemented and the output buffer circuits are connected similarly and they are operated. Thus, even when an input signal enters simultaneously the plural output buffer circuits, since output timings are deviated from each other, production of noise due to simultaneous change is suppressed.
Patent JP-H10163498-A (JP)
Title: Thin film transistor, fabrication thereof and liquid crystal display
Inventor: FUKUDA KAICHI
IPC: H01L21/77
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To fabricate a thin film transistor having a highly accurate LDD structure easily by providing an etching stopper layer between a lightly doped LDD region and a side wall. SOLUTION: An insular semiconductor layer is formed on an insulating substrate 1. The semiconductor layer has a central undoped channel region 2a, a lightly doped LDD region 2b contiguous to the channel region 2a, and a heavily doped low resistance layer 2c contiguous to the LDD region 2b. A gate insulator 3 is deposited on the entire surface while covering the semiconductor layer and a gate electrode 4 is formed in a region corresponding to the channel region 2a before forming an etching stopper layer 5 covering the gate electrode 4. Finally, a side wall 6 is formed on the side of the gate electrode 4 through the etching stopper layer 5. According to the structure, damage on the gate insulator 3 can be suppressed.
Patent JP-H06198448-A (JP)
Title: Sheathed torch head assembly for welding/cutting torch and manufacture of said assembly
Inventor: BITSUKEN AARU SAAKISHIAN
IPC: B23K9/29
Filed: 1992-11-05
Abstract: PURPOSE: To prevent an insulated sheath from being weakened by bending a spiral type conductor, and yet to surely maintain electrical connection with a conduction torch head to a spiral type conductor. CONSTITUTION: A torch head assembly comprises a conduction torch head 10, a conductor electrically engaged with this torch head 10 and connected to a power source, an insulated sheath 18 enveloping the torch head 10 and the conductor, and a conductive and elastic adhesives 32 which stands intervened in an engaging part between the torch head 10 and the conductor and forms an elastic, mechanical and electrical connection between the torch head and the conductor. Therefore, the sheathed torch head assembly for the welding/ cutting torch so as to hold the engaging part against a separating action effected by the use of the torch head assembly, is manufactured.
Patent JP-H05146798-A (JP)
Title: Treatment of oils and fats containing waste water
Inventor: FUKASE TETSURO
IPC: C02F9/00
Filed: 1991-12-03
Abstract: PURPOSE:To efficiently decompose and remove the oils and fats contained in waster water with simple device and operation by decomposing the oils and fats into the form easy to assimilate and assimilating the decomposition product by microbes. CONSTITUTION:Lipase is added to an oils and fats-contg. waste water agitated and mixed to hydrolyze the oil, and the water is then biologically treated to decompose and remove the oil decomposition product and other BOD components.