baber/WOPTO huggingface dataset:
Patent JP-H02163435-A (JP)
Title: Air-fuel ratio controller for engine
Inventor: MAMIYA KIYOTAKA
IPC: F02D41/14
Filed: 1988-12-15
Abstract: PURPOSE:To improve the responsiveness and secure the high performance in the air-fuel ratio control by feedback-controlling the fuel feed quantity at least from one between the fuel feeding means which are installed on the upstream and downstream sides of a suction passage on the basis of the residual oxygen concentration and further carrying out the learning control. CONSTITUTION:A control unit 20 feedback-controls the fuel feed quantity supplied at least from one between fuel injection valves 14 and 13 arranged on the upstream side of a surge tank 9, and the convergence part downstream side of a bypass passage 11 according to the residual oxygen concentration in the exhaust gas which is detected by an O2 sensor 23 and optimizes the air-fuel ratio of the mixed gas supplied into an engine 1. On the basis of the feedback control learning control for the fuel feed quantity by the both fuel injection valves 13 and 14 is carried out, and the learned value is used in the control of the fuel feed quantity. Thus, the delay in the operation response in the case when the ratio of the fuel feed quantity from the both fuel injection valves varies is eliminated, and the influence of the dispersion of the faculty due to the change after the lapse of years, etc. is eliminated, and the air-fuel ratio can always be controlled to a proper value.
Patent JP-H07171735-A (JP)
Title: Liquid treatment equipment
Inventor: YAMASHITA MASAHIRO
IPC: B23Q11/10
Filed: 1993-12-17
Abstract: PURPOSE:To reduce the amount of industrial waste, reduce the cost to maintain a liquid treatment device, and reduce the cost of liquid treatment by dispensing with the filter replacement of a collected liquid filtering device to filter the liquid to be returned from a dirty tank to a clean tank. CONSTITUTION:A liquid treatment equipment of circulating system is provided where the cleaning liquid 11 in a clean tank 10 is fed to the prescribed place to use the liquid (cleaning chamber) 34, the used liquid where foreign matter is mixed is collected to a dirty tank 20, and the collected liquid 21 to be collected in this dirty tank 20 is filtered and returned to the clean tank 10. The liquid treatment equipment is provided with a filtering passage 42 to feed the collected liquid 21 in the dirty tank 20 to the clean tank 10, a collected liquid filtering device 70 which is incorporated in this passage 42 and filters the collected liquid 21, and a filter cleaning passage 56 to feed the cleaning liquid 11 in the clean tank 10 to the direction opposite to that during the filtering operation into this collected liquid filtering device 70.
Patent JP-S63226221-A (JP)
Inventor: TSUCHIYA AKIRA
IPC: A01G9/02
Filed: 1987-12-16
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-2000143278-A (JP)
Title: Projection exposure device having enhanced durability and production of image forming optical system
Inventor: JINBO HIROKI
IPC: C03B8/04
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To obtain a projection exposure device less liable to deteriorate optical characteristics such as transmittance even when light is radiated over a long period of time by incorporating an optical member comprising a quartz glass whose chlorine concentration is a specified value or below and an optical member comprising a quartz glass whose chlorine concentration is in a specified range into an optical system. SOLUTION: An optical member comprising a quartz glass having <=1 ppm chlorine concentration synthesized using an organosilicon compound and silicon fluoride as starting materials is disposed at a part at which the energy density of light from a light source is high because it has high durability. An optical member comprising a quartz glass having 1-200 ppm chlorine concentration synthesized using silicon chloride as starting material is disposed at a part at which the energy density of light from the light source is low because it has good initial transmittance and is excellent in homogeneity. The hydrogen molecule content of each high purity synthetic quartz glass is preferably 5×1017-5×1018 molecules/cm3 from the viewpoint of UV resistance. Calcium fluoride crystals excellent in light transmittance in a short wavelength region are also used.
Patent JP-H02164029-A (JP)
Title: Manufacture of semiconductor
Inventor: ASHIDA OSAMU
IPC: H01L21/302
Filed: 1988-12-19
Abstract: PURPOSE:To prevent a silicon substrate from being damaged upon a polycrystalline silicon layer being subjected to final etching by forming a silicide layer on a silicon substrate at an opening portion by reacting the side of the opening portion with heat-resistant metal by covering the same side with a silicon oxide film. CONSTITUTION:After the whole of a polycrystalline silicon layer 30 including the side of an opening portion after first etching is coated with silicon oxide matters 70 is formed thereon and heat-treated to form a silicide layer 80 on a silicon substrate 10. Then, the side of the opening portion and the silicon oxide matter 40 on the polycrystalline silicon layer 30 are removed to form a second polycrystalline layer 100, and further final etching is applied to a second polycrystalline layer silicon layer 100 other than the second polycrystalline silicon layer 100 coated with a resist 120 to form a direct contact. The silicon substrate 10 is protected without having any damage such as scraping and the like because there is no silicide layer 80 existent upon unnecessary portions in the removal by final etching.
Patent JP-H08181862-A (JP)
Title: Image forming device
Inventor: YAMANISHI HIDEKAZU
IPC: G03G15/00
Filed: 1994-12-21
Abstract: PURPOSE: To remove histogram sampling from other than source documents, to plot an appropriate histogram and to execute automatic gradation adjustment according to an appropriate correction reference value. CONSTITUTION: Main CPU 11 generates the histogram by a histogram plotting circuit 80 from picture data from a scanner part 1 in a picture processing part 44. A histogram clearance judgment part 88 detects the white peak and the black peak of the histogram, and compares a white threshold and a black threshold. When the white peak is larger than the white threshold or when the black peak is larger than the black threshold, it is judged whether the total sum of the frequencies of n-blocks on both sides of a white or black peak value is beyond a prescribed value or not. When it is beyond the value, a correction reference value calculation part 81 calculates a reference value for gradation adjustment from the histogram in the line, and a histogram value stored in the histogram plotting circuit 80 is cleared. Then, the new histogram is plotted from the extraction of next scan data.
Patent JP-2001135825-A (JP)
Title: Device simulation method
Inventor: KIMURA MUTSUMI
IPC: H01L21/66
Filed: 1999-11-09
Abstract: PROBLEM TO BE SOLVED: To avoid generation of a singular point, that is, a phenomenon of reduction to ρ=∞, in the crystal grain boundaries in a polycrystalline thin film transistor containing crystal grains and the crystal grain boundaries existing between the crystal grains and to make it possible to solve a potential equation by a device simulation method, wherein a semiconductor element is divided into meshes and a physical equation, such as the potential equation and a carrier continuous equation, is solved by each mesh. SOLUTION: The crystal grain boundaries being contained in a polycrystalline thin film transistor are respectively represented by a microscopic region containing a plurality of meshes. When the impurity concentration in the crystal grains contained in the transistor is assumed N (m-3) and the trap concentration in the crystal grain boundaries is assumed Q (m-2), the width w (m) of the microscopic region is formed so that it is shown by the following formula: (N.w)/Q<; 0.1. Moreover, the microscopic region is divided into at least four meshes or more.
Patent JP-H10163571-A (JP)
Title: Nitride semiconductor laser element
Inventor: SANO MASAHIKO
IPC: H01S5/343
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To lower threshold current and threshold voltage by forming a p-type electrode between a flat surface and side face of a ridge stripe except a ridge of a resonance surface side. SOLUTION: A buffer layer 2, an n-type contact layer 3, a crack preventive layer 4, an n-type clad layer 5, an n-type optical guide layer 6, a multiple quantum-wall structure active layer 7, a p-type cap layer 8, a p-type guide layer 9, a p-type clad layer 10 and a p-type contact layer 11 are sequentially laminated in this order on a substrate 1. The layers 10 and 11 are formed in a stripe-like ridge shape, and a p-type electrode 20 is formed between the side face of the stripe and a flat surface of the ridge uppermost part p-type contact layer 11. Since the electrode 20 is formed to the side of the stripe, substantial area of the electrode having low contact resistance with the p-type layer is increased, and hence current density per unit area is decreased, and threshold current, threshold voltage can be lowered.
Patent JP-2000152561-A (JP)
Title: Ventilation filter and ventilation cooling type dynamo electric machine provided with ventilation filter
Inventor: YAGI NOBUYUKI
IPC: H02K9/06
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a ventilation filter in which elimination performance of dust in outside air for cooling taken in a dynamo electric rotating machine is improved, and a self ventilation cooling type dynamo rotating machine which has the filter, prevents dust from sticking and depositing on a rotor part or the like, and permits long term operation without decomposition. SOLUTION: A ventilation filter 16 is equipped with an outside air intake 16a which is opened almost vertically downward, and a slewing wind tunnel 16b of an almost circular arc type which stretches from the intake 16a over at least a half periphery. The inner peripheral side end portion 16c of the wind tunnel 16b is connected with a cooling air entrance 17a of a frame 4 of a dynamo electric machine 1. The outer peripheral side end portion 16d of the wind tunnel 16b is connected with a bypass air entrance 17b of the frame 4 of the dynamo electric machine 1.
Patent JP-H04190581-A (JP)
Title: Heating device
Inventor: NOMURA YASUHISA
IPC: H05B3/00
Filed: 1990-11-24
Abstract: PURPOSE:To eliminate production of unbalance components, and prevent change of a set temperature of a heating body by a long-period use by applying AC of a positive/negative symmetric waveform to the heating body so as to cause on/off action corresponding to an output in a section between zero-cross points of a voltage and a current. CONSTITUTION:AC of a positive/negative symmetric waveform is applied to a heat-sensitive layer 4 of a heat-sensitive heater wire 1 by both of inside/outside conductors 2, 3. When a section measuring means 7 measures a preset value to cause a heater control means 8 to make an on-action, an AC of a positive/ negative symmetric waveform is applied to the heating body 1. A section between zero-cross points detected by a zero-current detecting means 5 and a zero-voltage detecting means 6 is changed by a temperature of a heat-sensitive layer 4, so a temperature of the heating body 1 is detected by measuring this section by the section measuring means 7. A phase angle phi is, therefore, a value having no relation with a size of the heat-sensitive layer 4 at all, and this corresponds with the temperature. An AC of a positive/negative symmetric waveform is thus applied, and a stable temperature control can be achieved for a long-period use.
Patent JP-H11154794-A (JP)
Title: Converter for receiving satellite broadcast
Inventor: ITO WATARU
IPC: H04B1/26
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a converter capable of improving assembling workability by fixing an LNB (low noise frequency converter) substrate, chassis and shield cover by soldering step, while equalizing the earth potential of the LNB substrate and the whole circuit. SOLUTION: A converter is composed of an upperside opened case type chassis 1 containing an LNB substrate 3 including a local oscillation circuit on the bottom face as well as an underside opened case type shield cover 2 to be inserted into the opening of the chassis 1 to be fixed to the chassis 1 having the outer peripheral side face in the opposing shape to the innerside wall of the chassis 1. In such a constitution, the upperside earth pattern of the LNB substrate 3 and the underside of the shield cover 2 are soldered as well as the earth pattern of the underside of the LNB substrate 3 and the inner backside 1c of the chassis 1 are also soldered.
Patent JP-H11154618-A (JP)
Title: Manufacture of laminated inductor
Inventor: INOUE YASUSHI
IPC: C04B35/64
Filed: 1997-11-20
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of a laminated inductor on which cracking and decline of strength can be decreased, and strain of stress is not developed without providing a void between an insulative layer and an inner conductor. SOLUTION: Conductive pattern 21-1 to 21-n are formed on a surface of conductive sheets 22-1 to 22-m having a through hole and on magnetic sheets having on through hole, using the conductive paste such as Ag, etc. Then, the magnetic sheets having printed conductive pattern are laminated in such a manner that they are electrically connected with each other. After the laminate is press-bonded under constant pressure and cut into the desired shape, it is released from binding at 350 to 550 deg.C in the air, it is fired at 850 to 950 deg.C in the air, and a sintered body is obtained. Subsequently, a thermal shock treatment is performed once or more times at the temperature difference of 120 deg.C or higher against the sintered body. The heating up speed and the cooling down speed when the thermal shock treatment is performed are set at 20 deg.C/mic. or lower.
Patent JP-2000151286-A (JP)
Title: Direct conversion receiver
Inventor: SUGIYAMA SHIGERU
IPC: H03D7/00
Filed: 1998-11-10
Abstract: PROBLEM TO BE SOLVED: To obtain the direct conversion receiver with good reception sensitivity by making none of frequency components due to secondary intermodulation that a low-noise base-band amplifier generates appear at a BB output terminal. SOLUTION: A mixer which has differential outputs is used as an even-higher- harmonic waveform direct conversion mixer 19, which inputs and amplifies differentially outputted signals through the frequency mixture of a high-frequency signal from an RF input terminal and a local oscillation wave from an LO input terminal 2 by low-noise base-band amplifiers 8a and 8b, and them sends them to a 180 deg. composition unit 20 and puts them together, so that the result is outputted as a base-band signal from a BB output terminal 3.
Patent JP-2001138540-A (JP)
Title: Printing head protecting apparatus and operation control method thereof
Inventor: KIMURA SHIGERU
IPC: B41J2/165
Filed: 1999-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a printing head protecting apparatus for an ink jet printer capable of preventing not only the clogging of nozzles but also the color mixture of ink at the time of starting and capable of reducing the waste of ink. SOLUTION: A printing head protecting apparatus is equipped with a cap 5 covering the printing surface 1a of the printing head of an ink jet printer at the time of non-printing operation, a cap transfer mechanism 15 allowing the cap 5 to advance or retreat with respect to the printing surface 1a of the printing head 1 and a main control part 17A for controlling the operation of the cap transfer mechanism 15 in a predetermined timing. A moisture retaining liquid supply mechanisms for supplying a predetermined amount of a moisture retaining liquid to the cap is provided in the cap and the main control part 17A has a liquid supply operation control function for controlling the operation of the moisture retaining liquid supply mechanism 4 in a predetermined timing.
Patent JP-H03182500-A (JP)
Title: Fluid control device
Inventor: YOSHIDA NARITAKA
IPC: B66F19/00
Filed: 1989-12-08
Abstract: PURPOSE:To easily operate and move a load body with a slight force by providing a fulcrum on a load transmitting body incorporating a box applied with a load and an external force, and fitting a lever which is rotatably coupled with the box at one end as application points and has a control handle at the other end as a force point. CONSTITUTION:A cylinder 3 with a piston 2 connected to an output transmitting body 1 is provided in series to a bulb case 12 (load transmitting body) suspending a load body 17. A box constituted of the first chamber with a constant volume connected to a fluid feed path, a fluid entrance path 9 connected to the cylinder 3, and the second chamber with a variable volume communicated to a fluid discharge passage and the above first chamber respectively is arranged in the bulb case 12. A lever which has a fulcrum 20 on the bulb case 12 and is rotatably coupled with the box at one end as application points 7a, 7b and has a control handle 18 at the other end as a force point is fitted on a bulb case 12. The weight of the load body 17 is instantaneously detected in the zero gravity state, and the load body 17 can be freely moved by a slight force applied from the handle 18.
Patent JP-H10164701-A (JP)
Title: Motor driving controller for electric vehicle
Inventor: MATSUNAGA YASURO
IPC: B60L9/18
Filed: 1996-11-29
Abstract: PROBLEM TO BE SOLVED: To prevent regenerative current from flowing when a torque command value is zero by means of inverter-controlling by adding a correction value for applying positive torque to the torque command value when a detected rotational speed value exceeds rotational speed. SOLUTION: This motor controller 9 controls an inverter main circuit 5 based on a torque command value Te*, and calculates the rotational speed Nm of a synchronous motor 6 by a pulse signal from a rotation sensor 7. When a battery 1 is in a fully charged condition and actual motor rotational speed Nm is higher than a motor rotational speed Nm0 where the induced voltage of the synchronous motor 6 exceeds battery voltage Vb, the inverter main circuit 5 is controlled by a real torque command value Te' to which a correction value (α) for applying positive torque to the torque command value Te* is added. As a result, it is possible to prevent regenerative current from flowing when the torque command value Te* is zero even if a control error is present in the motor driving controller, therefore, it is also possible to prevent the battery in a fully charged condition from being overcharged.
Patent JP-H05125142-A (JP)
Title: Urethane composition for paper-feeding roller
Inventor: SUZUKI YASUHITO
IPC: C08L75/04
Filed: 1991-11-06
Abstract: PURPOSE:To obtain the subject urethane composition of low hardness, no migration of additives and high friction coefficient by using a specific urethane prepolymer, a glycol curing agent, and a plasticizer of a certain volume resistivity. CONSTITUTION:The subject urethane composition comprises (A) a urethane prepolymer from the reaction of an etheric polyol such as polypropylene glycol with an isocyanate such as tolylene diisocyanate, (B) a glycol curing agent such as 1,4-butanediol, and (C) a plasticizer having a volume resistivity of from 5X10<5> to 1X10<8>OMEGA.cm/100V (direct current voltage) where the amount of component C is 5 to 50 pts.wt. per 100 pts.wt. of component A and the surface resistivity of the cured product therefrom is 5X10<8> to 1X10<10>OMEGA/100V (direct current voltage).
Patent JP-H01160513-A (JP)
Title: Kneader
Inventor: KONO GENICHIRO
IPC: A47J43/046
Filed: 1987-12-17
Abstract: PURPOSE: To enable to sufficiently knead powder material with less kneading members by rotating the kneading members in synchronization so that the kneading sections of adjacent kneading members close to and leave from. each other according to the rotation. CONSTITUTION: Two impellers 21 and 22 are extended from impeller pieces 21b and 22b as a kneading section, and the impeller pieces 21b and 22b are designed so that the impeller 21 is longer than the right impeller 22. The diameters of pullys with gears 10 and 11 are made to be same, the impellers 21 and 22 rotate at the same speed, and their rotary areas are overlapped a little. The impeller pieces 21b and 22b are attached to shafts 17 and 18 so that they are almost opposite to each other, and they rotate in synchronization so that they close to and leave from each other at a place where their rotary areas are overlapped according to the rotation. That is, a bread material is pressed in the closing process and is pulled in the leaving process, and by repeating these processes, the bread material is efficienty kneaded.
Patent JP-H02164563-A (JP)
Title: Character processor
Inventor: NAKANISHI KEIKO
IPC: G09G5/24
Filed: 1988-12-19
Abstract: PURPOSE:To convert from vector form to dot form quickly by judging whether an output is requested in the direction of row or column and controlling a converting means such that conversion from vector form to dot form can be carried out efficiently. CONSTITUTION:A CPU 1 reads out specific data stored in a RAM 3 in vector form then the data is multiplied by a magnification/reduction factor and converted into co-ordinate data. It is judged whether an output is requested in a row or a column, and if the output is requested in a row the co-ordinate data is stored with profile unit and the row is smeared away. When the output is requested in a column, a profile table is generated and the column is smeared away. By such arrangement, conversion from vector form to dot form can be carried out efficiently.
Patent JP-H01172533-A (JP)
Title: Chlorination of metallurgical composite
Inventor: FUIRITSUPU HANNATSUKAA
IPC: C01G25/04
Filed: 1987-12-17
Abstract: PURPOSE: To inexpensively and easily chlorinate and collect Ti, Zr, Mg, etc., in ores by mixing the hydrous plastic aggregate obtd. by shearing brown coal and ores and heating the carbide aggregate obtd. by compressing, drying and heating the resultant mixture in the presence of chlorine.  
     CONSTITUTION: The multi component mixture composed of the hydrous plastic aggregate formed by subjecting the brown coal mainly to shearing force and the ores, such as ilmenite, rutile, zircon and magnesite, is formed. The compressed aggregate obtd. by compressing such multi component mixture is dried at an ambient temp. The dried and compressed aggregate is heated to a temp. in a range of 500 to 900°C to form the carbide aggregate. This carbide aggregate is then heated in the range of 500 to 1000°C in the presence of chlorine. As a result, the chlorides of the Ti, Zr and/or Mg incorporated into the ores described above are formed. These chlorides are easily recovered as vapor or free flowing liquid at a reaction temp. 
     COPYRIGHT: (C)1989,JPO
Patent JP-H08176390-A (JP)
Title: Thermoplastic resin composition
Inventor: NEGISHI HIROAKI
IPC: C08K5/541
Filed: 1994-12-22
Abstract: PURPOSE: To provide a thermoplastic resin composition containing a polyarylene sulfide resin and a fluororesin produced by the copolymerization of tetrafluoroethylene, vinylidene fluoride and an asymmetric fluorine-based monomer and having excellent heat-resistance, chemical resistance, impact resistance and elongation. CONSTITUTION: This thermoplastic resin composition having toughness and improved impact resistance and tensile elongation can be produced without deteriorating the heat-resistance, chemical resistance and flame retardancy by compounding (A) a polyarylene sulfide resin (e.g. polyphenylene sulfide) with (B) a crystalline thermoplastic fluororesin produced by the copolymerization of (i) tetrafluoroethylene, (ii) vinylidene fluoride and (iii) an asymmetric fluorine- based monomer of formula (R is a halogen, a fluoroalkyl or a fluoroalkoxy) (e.g. chlorotrifluoroethylene) and (C) a silane compound having an organic functional group on the structure such as a silane coupling agent (e.g. γ- glycidoxypropyl trimethoxysilane), etc.