baber/WOPTO huggingface dataset:
Patent JP-2000213978-A (JP)
Title: Liquid level detection device having shield drive
Inventor: SHO DAII
IPC: G01F23/26
Filed: 1999-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a cheap liquid level detection device with a simple constitution capable of inhibiting an influence on liquid level detection by a stray capacitance variation caused by a vertical and rotation motion of a sampling arm. SOLUTION: Liquid 5 is separately poured to a container 3 of a retaining portion 4 and liquid level is detected by a probe 6. In the liquid surface detection device, the probe 6 is made to a shield drive which is constituted by an operation amplifier between an inner tube 6a and an outer tube 6b of the probe 6 and the outer tube 6b is not earthed and is made to a low impedance at the same potential as the inner tube 6a. Since the inner tube 6a and the outer tube 6b have the same potential, an electrostatic capacity between them is 0 and a variation of the electrostatic capacity is not generated caused by a descending of the probe 6 and a position deviation of a wiring.  A difference of a capacity when the probe 6 is contacted with the liquid and a capacity when the probe 6 descends becomes a capacity between the probe 6 and the retaining portion 4 and a stable liquid surface detection becomes possible.
Patent JP-H04211032-A (JP)
Title: Process for purifying 1,1,1-tris(4'-hydroxyphenyl)ethane
Inventor: HAINTSU SHIYUTORUTSUTSU
IPC: C07C37/68
Filed: 1991-02-08
Abstract: PURPOSE: To purify 1,1,1-tris(4'-hydroxyphenyl)ethane.  
     CONSTITUTION: A process for the purification of 1,1,1-tris(4'-hydroxyphenyl) ethane by washing a crude mixture contaminated with impurities with a saturated solution of 1,1,1-tris(4'-hydroxyphenyl)ethane in water and methanol; and isolating the washed crude mixture from the effluent and dissolving the washed crude mixture in methanol, and adding water and sodium borohydride to the dissolved, washed crude admixture to form a precipitate of 1,1,1-tris(4'- hydroxyphenyl)ethane, and filtering the precipitate to form purified target product and a filtrate is provided. Another embodiment of the invention provides iteratively repeating the process by washing an additional crude batch with the filtrate from a prior purification. 
     COPYRIGHT: (C)1992,JPO
Patent JP-H08206111-A (JP)
Title: Method for displaying ultrasonic image and ultrasonic diagnostic apparatus
Inventor: RI TAIHOU
IPC: A61B8/00
Filed: 1995-02-06
Abstract: PURPOSE: To improve drawing capability of microblood vessels in the Doppler power mode. CONSTITUTION: An operating part 11 for self-correlation and others outputs Doppler power data P and a shade-adding part-extracting part 21 extracts the left side part of the contour of an ultrasonic image from the Doppler power data P. A data value-converting part 22 converts the data value of the extracted shade adding part to the data value corresponding to the shade and also converts the data value except the shade adding part to the value except the data value corresponding to the shade. An image can be seen three-dimentionally thereby to facilitate diagnosis. Especially, in an ultrasonic image of the Doppler power mode, the blood vessels can be seen three-dimentionally and even microblood vessels can visually and clearly be recognized.
Patent JP-S56116364-A (JP)
Title: Processor for facsimile video signal
Inventor: KURATA MASAMI
IPC: H04N1/407
Filed: 1980-02-19
Abstract: PURPOSE:To reproduce a color original with shorter width or black original with continuity with fidelity, by sampling-hold of a signal in reference white zone to make an automatic background adjusting circuit control signal and using a signal in the reference white zone and a part of video signal with synthesis. CONSTITUTION:The video information converted into electric signal from a sensor 7 is the signal with waveform (a) by the original retaining A, C, original B and reference white zone D at a preamplifier 8. At the period of OFF a2 of this signal (a), the semiconductor switch 12 is ON to input the information of white zone D to the voltage storage device 9 for the OFF a2 period and for the storage for a given scanning time. This information is attenuated to the voltage VB of threshold value which is discriminated as the background at the automatic background adjusting circuit 11 by means of a voltage attenuator 10. Further, the semiconductor switch 13 is switched with this voltage VB and the information of the original B, and amplification degree of the circuit 11 is adjusted depending whether the background of the original B is higher or lower than the voltage VB, allowing to reproduce color original in narrow width or continuous black original with fidelity.
Patent JP-H07228653-A (JP)
Title: Cross-linked polyurethane ionene
Inventor: KINOSHITA KOJI
IPC: C08G18/48
Filed: 1994-02-15
Abstract: PURPOSE:To obtain a cross-linked polyurethane ionene useful not only as an elastomer having a high strength, a high modulus and semiconductivity but also as various functional elastomers having functional properties including water absorptivity. CONSTITUTION:This cross-linked ionene is obtained by reacting a mixed polyol comprising a mixture of a poly(caprolactone)ester polyol with a poly(oxyethylene) glycol with 4,4'-methylenebis(phenyl isocyanate) in a molar amount of 2 times based on the mixed polyol, preparing a prepolymer having terminal isocyanate groups, reacting the resultant prepolymer with tris(2-hydroxyethyl) isocyanurate, then reacting the prepared prepolymer with 2-dimethylaminoethanol in an equimolar amount to the prepolymer, preparing a trifunctional prepolymer having an isocyanurate ring structure and dimethylamino groups as terminal functional groups and then reacting the prepared prepolymer with N,N,N',N'- tetramethyl-1,6-diaminohexane and 1,6-dibromohexane.
Patent JP-H11169847-A (JP)
Title: Oil recovering device
Inventor: MOHN FRANK
IPC: C02F1/40
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To provide an oil recovering device in which oil floating just below the surface of the water and floating on the surface of the water is scraped off and sent into a recovery vessel by a pump. SOLUTION: This device has a float 25 fitted to a pump 13. The pump 13 has a funnel type input port 18 whose outer periphery is surrounded by the float 25 and which is connected to a flexible skirt 23 whose position can be adjusted to the surface of the water and to a fan 14. Sensors 42-44 are mounted on the recovering device so that data is formed depending on, for example, water pressure drop across the pump, pump output pressure, pump fluid temperature, oil and water levels, oil layer thickness, and the like. This data is treated by a microprocessor means positioned on the device or away from it, and the control signal controls the floating level of the skirt and/or the velocity of the pump.
Patent JP-H11220146-A (JP)
Title: Manufacture of solar cell
Inventor: KARAKIDA SHOICHI
IPC: H01L31/04
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To form a rough surface shape to effectively confine light by etching an Si substrate having a rough surface formed by the mechanical slicing, using a water soln. contg. an alkali hydroxide in a specified concentration range. SOLUTION: An Si substrate having a rough surface formed by the mechanical slicing is etched, using a water soln. contg. an alkali hydroxide 0.25-3.0 mol/l. This method specifies an optimum alkali hydroxide concn., hence a surface layer part damaged by the slice step is removed and the rough shape formed by the slice step can be left. If it is either a single crystal Si or polycrystalline Si, a fine irregularity can be formed on the substrate surface. Accordingly the solar cell more absorbs the light to improve the performance. The etching for removing contaminants and that for forming the rough shape are made at once and the treating process can be lessened.
Patent JP-H10225107-A (JP)
Title: Dc-dc converter
Inventor: TAKIMOTO HISAICHI
IPC: H02M3/155
Filed: 1997-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a DC-DC converter which makes it possible to shorten charging time and at the same time to prevent the increase of a chip area when charging batteries in parallel. SOLUTION: An output element 3 executes switching operations based on the output signal of a PWM comparator 9. A filter circuit 24 filters the output signal of the output element 3 to output DC output voltages VO1 , VO2 and DC output currents VO1 , VO2 . A voltage control amplifier 21 detects the DC output voltages VO1 , VO2 to control the PWM comparator 9 in such a way as to maintain the DC output voltage at a certain voltage. A current control amplifier 8 detects the DC output currents IO1 , IO2 to control the PWM comparator 9 in such a way as to maintain the DC output current below a certain value. Comprising a multiple input amplifier capable of receiving the plurality of inputs of the DC output voltages, the voltage control amplifier 21 controls the PWM comparator 9 based on a DC output voltage having the lowest value of all the DC output voltages.
Patent JP-H04256777-A (JP)
Title: Working device for sheet material with pattern
Inventor: ITOU HIROSUMI
IPC: D05B27/22
Filed: 1991-02-12
Abstract: PURPOSE:To automatically execute the adjustment of a white balance and a dynamic range for executing exactly the pattern detection, in a pattern matching sewing machine provided with a pattern detection color sensor. CONSTITUTION:A pattern detection head 113 is incorporated into a middle plate 104 of an edge guider of a pattern matching sewing machine, and also, a color reference plate is provided so as to be movable on the upper plate 303 and the lower plate 305, respectively, and on its color reference plate, a first black coated face 311 and a second white coated face 312 are provided and the color reference plate is moved by an air cylinder 320, and a first coated face and a second coated face are placed alternately and opposingly to a pattern detection head. When a first coated face is placed opposingly, adjustment of a dynamic range is executed automatically, and thereafter, when the color reference plate is moved and a second coated face is placed opposingly, adjustment of a white balance is executed automatically.
Patent JP-S63186751-A (JP)
Title: Production of fine particle of highly water-absorptive resin
Inventor: OGURA MASATO
IPC: C08L29/04
Filed: 1987-01-29
Abstract: PURPOSE:To produce the title fine particles without the necessity of grinding after drying, by homogenizing an aqueous dispersion containing a vinyl ester- based or ethylenically unsaturated carboxylic acid-based monomer, a polymerization catalyst, a dispersant, etc., polymerizing the dispersion to obtain fine particles and saponifying the fine particles under specified conditions. CONSTITUTION:A dispersion containing a monomer based on a vinyl ester (e.g., vinyl acetate) and/or an ethylenically unsaturated carboxylic acid or its derivative [e.g., methyl (meth)acrylate], a polymerization catalyst (e.g., benzoyl peroxide) soluble in said monomer and further containing at least either of a dispersant (e.g., PVA) and an anionic emulsifier (e.g., sodium lauryl sulfate) is homogenized and polymerized to obtain fine polymer particles. These particles are saponified in the presence of an alkali and a dispersant under conditions in which these particles are not dissolved to produce highly water-absorptive fine particles of an average particle diameter of 3-30mu.
Patent JP-S59144156-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKAMOTO ISAMU
IPC: H01L23/48
Filed: 1983-02-08
Abstract: PURPOSE:To improve the moisture resistance by assembling and resin-sealing leads with a leadframe which is previously formed with leads. CONSTITUTION:A leadframe 11 is bent at the bending point 8 of its lead terminal 13 so that the bonded part of the ends of the leads and an element placing part can be floated from the surface of the leadframe together with the lateral frame 4' of the leadframe. A semiconductor element 5 is placed on the leadframe 11, and sealed with sealing resin 7. The terminal 13 is isolated from the frame 4. Then, a gap which allows the invasion of moisture can be eliminated, thereby enhancing the insulating reliability.
Patent JP-H11216840-A (JP)
Title: Apparatus and method for printing with cream solder
Inventor: ONISHI HIROAKI
IPC: B41F15/40
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for printing with cream solder by which stable printing can be performed. SOLUTION: A squeegee 710a for filling and a squeegee 714a for scraping are provided and the apex 724a of the squeegee 710a for filling and the apex 720a of the squeegee 714a for scraping are arranged by a dimension D so as to make a mask 3 bend only once by their continuous passing. In addition, the squeegee 710a for filling is moved under noncontact condition to the surface 3a of the mask 3 and unnecessary cream solder is removed by the squeegee 714a for scraping immediately after the cream solder is filled into an opening part 4. Therefore, even when squeegee speed is made high by using a cream solder with a low viscosity, there exists possibility of neither poor filling of the cream solder into the opening part nor poor scraping of the cream solder and stable printing on a circuit base sheet can be performed.
Patent JP-H04236419-A (JP)
Title: Liquid supply equipment
Inventor: KURODA YUKITERU
IPC: G03F7/16
Filed: 1991-01-18
Abstract: PURPOSE:To obtain a liquid supply equipment capable of inspecting the supply amount of treatment liquid like resist solution, by a simple method. CONSTITUTION:Firstly, an arm 20a is made to retreat from above a nozzle- awaiting block 32 without retaining a resist nozzle 18. Secondly, an inspector takes out the resist nozzle 18 for inspecting discharge amount by hand. Thirdly the inspector makes the resist nozzle 18 discharge treatment liquid by using an operation panel. By receiving the discharged treatment liquid with a measuring cylinder or the like, the discharge amount is inspected.
Patent JP-S63190028-A (JP)
Title: Method for stopping spinning frame and apparatus therefor
Inventor: YAKUSHI MAKOTO
IPC: D01H1/20
Filed: 1987-01-29
Abstract: PURPOSE:To wind a yarn into a pirn with enlarged winding pitch, by providing clutches between a driving system of a drafting device and a driving system of a lifting device and increasing the rotational speed of the lifting device- driving system behind the clutches after the stop of the operation of the spinning frame. CONSTITUTION:Clutches 30, 31 are provided in a gear train present at a junction between a drafting device-driving system (before a gear train g) and a lifting device-driving system (after a gear train h) and the gear ratio of the gear trains 32, 33 is made larger than that of the gear trains 10', 10. When the operation of a frame is stopped, the clutches 30, 31 becomes the states of 'ON' and 'OFF', respectively, and the lifting device-driving system is driven faster than the state of normal spinning operation. The generation of sloughing phenomenon in the unwinding of yarn can be drastically reduced by the use of the apparatus.
Patent JP-S60164074-A (JP)
Title: Butterfly valve
Inventor: OOTANI FUMIO
IPC: F16K1/22
Filed: 1984-02-07
Abstract: PURPOSE:To stabilize the downstream by forming a flow path communicating between the upstream and downstream sides of the center of valve shaft on the side face of valveboard at the downstream thereby suppressing the separating region at the downstream of valve body. CONSTITUTION:A plurality of flow paths 8 opening to the side face of valve board 2b at the downstream are formed in the side face of valve body 2 at the downstream simultaneously with casting of valve body 2. The position of the opening 9, 10 of flow path 8 is in parallel with the center of valve shaft 2a and when assuming the distance between the center of valve shaft and the opening is L, while the radius of valveboard is R, the ratio L/R is set in the range of 0.5-1 for the upstream opening 9 while in the range of 0-2/3 for the downstream opening 10. Consequently, the fluid is fed from the downstream opening 10 through the flow path 8 in the valve board 2b to the upstream opening 9 by the differential pressure resulting in stabilization of downstream.
Patent JP-H11220889-A (JP)
Title: Power supply device, discharge lamp lighting device and luminaire
Inventor: TAKAHASHI YUJI
IPC: H02M7/48
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device in which a low withstanding voltage and small capacity switching device can be employed and whose efficiency is improved. SOLUTION: The voltage of a DC power supply E is converted into a high frequency AC voltage by turning on/off field effect transistors Q1 and Q2 alternately. A predetermined voltage is applied to a fluorescent lamp FL by the series resonance of an inductor L1 and a capacitor C2 to start and light the fluorescent lamp FL. A filament preheating current is cancelled by a detection winding 12 and only a lamp current generated by a discharge between filaments FLa and FLb is detected by a lamp current detection circuit 16. The voltage of the lamp current detection circuit 16 corresponding to the lamp current is compared with the voltage of a reference power supply E1 by an error amplifier 17.  If the voltage of the lamp current detection circuit 16 is higher than the voltage of the reference power supply E1, the DC voltage of the DC power supply E is lowered by a DC voltage control circuit 18. If it is lower, the DC voltage of the DC power supply E is elevated. Thus, the lamp current is controlled to be constant in accordance with the voltage value set by the reference power supply E1.
Patent JP-S57133424-A (JP)
Title: Attachment lens
Inventor: SATOU HIDEJI
IPC: G02B15/12
Filed: 1981-02-10
Abstract: PURPOSE:To obtain a small-size attachment lens which extends the focal length about 1.5 times and reduce the brightness to the half approximately, by satisfying prescribed conditions in the lens system consisting of convex, concave, and concave meniscus lenses. CONSTITUTION:In the lens system consisting of a meniscus convex lens having a strong convex face in the image side, a meniscus concave lens having a strong concave face in the object side, and a meniscus concave lens having a strong concave face in the object side, conditions of expressions (1)-(5) are satisfied. In these expressions, fA is the resultant focal length of the lens system, and r1- r5 are radiuses of curvature of the first- the fifth faces, respectively, and n1 and n2 are refractive indexes of the first and the second lenses, respectively. Thus, a small-size attachment lens is obtained which extends the focal length about 1.5 times and reduces the brightness to the half approximately.
Patent JP-H10224240-A (JP)
Title: Detector for patient or the like
Inventor: NAGAYAMA MUNEHITO
IPC: H04B1/16
Filed: 1997-01-31
Abstract: PROBLEM TO BE SOLVED: To identify many transmitters which are carried by patients, etc., by receiving a carrier which undergoes phase modulation by an assigned ID code and reproducing an ID code by undergoing multiplication detection of it with a delayed signal. SOLUTION: A carrier oscillator 20 intermittently oscillates a carrier C1 according to a timing signal S1. An EX-OR 17 undergoes 180 degree phase modulation of the signal C1 by an ID code signal, that is read from ROM 18 which is assigned an ID. An RF amplification 16 amplifies a signal and sends it through an antenna 15. A receiving end creates an IF signal S40 by receiving it and amplifying it. A delay circuit 7 delays the signal S40 by only 1/4 cycle T of a transmission read clock S2, and a multiplier 8 multiplies it and detects it. The waveform of a signal S7 that acquires a detection output through an LPF 9 is non-inverted, when an ID code is inverted and it is inverted, when the ID card is non-inverted. Therefore, an identification circuit 10 easily identifies an ID card, reproduces it, and displays it.
Patent JP-S61179524-A (JP)
Title: Single crystallization method of polycrystalline silicon film
Inventor: MORITA SHIGERU
IPC: H01L21/263
Filed: 1985-02-04
Abstract: PURPOSE:To reduce the time of single crystallization and to single-crystallize a great area easily and with high processing capability by irradiating energy light in running spirally toward outward from the center of the region where a polycrystalline silicon film formed directly on a semiconductor substrate or on an insulation film on the substrate is single-crystallized. CONSTITUTION:A silicon oxide film 22 is grown on an N-type silicon (100) substrate 21 in the atmosphere of H2+O2 by hydrogen burning oxidation before single crystallization, a polycrystalline silicon film 23 is deposited on the film 22 and a wafer is obtained. Then, the water is fixed on a shaft 24 rotated by an electric motor by vacuum sucking. The inside of the shaft 24 is a hollow and the lower end of the shaft is connected to a vacuum pump. The wafer is rotated with the shaft 24 to the direction, e.g., shown with an arrow A and laser light 25 is moved from the center toward outward (shown with an arrow B). This makes the laser light irradiate in running from the center toward outward spirally (shown with an arrow C) on a polycrystalline silicon film 21.
Patent JP-S60164147-A (JP)
Title: Air conditioner with temperature difference controller
Inventor: TAKENAKA SHINYA
IPC: F24F11/02
Filed: 1984-02-07
Abstract: PURPOSE:To protect human body from becoming disordered as well as having uncomfortable feeling as a man moves to the outdoor by controlling the internal temperature of a room in such a way as to allow it to follow the outdoor temperature while keeping a set temperature difference proper. CONSTITUTION:The difference between an indoor temperature sensor 1 to detect the internal temperature of a room and an outdoor temperature sensor 5 to detect the atmospheric temperature outside the room is detected by the first differential circuit 6 and sent out. Also, the difference between a temperature difference setting circuit 7 to set up a target value of temperature difference and the first differential circuit 6 is detected by the second differential circuit 8 and a given control signal is sent out. In the indoor temperature controller 4, the indoor temperature is controlled on the basis of the control signal. Since the difference in temperature between the indoor and the outdoor can be set properly, the human body can be protected from becoming disordered and also having uncomfortable feeling as the human body moves to the outside of the room.
Patent JP-S57134724-A (JP)
Title: Alternating current stabilized power supply
Inventor: EDA TADAHIRO
IPC: G05F1/10
Filed: 1981-02-12
Abstract: PURPOSE:To prevent the generation of an abnormal voltage at disconnection of a load, by adding a voltage-dependant resistor. CONSTITUTION:A voltage applied to a load 3 is detected with a voltage detecting transformer 4, and a conduction phase controlling circuit 5 adjusts control pulses to a phase controlling circuit 20 according to this voltage. Thus, the power from an AC power supply 1 to the load 3 is stably adjusted according to the state of the load 3. When the load 3 is disconnected, a greater current flows to each part of circuits in a transient manner for further induction. Since a transient current includes higher harmonics, resonant or abnormal voltage is generated in every place through the frequency. Thus, a voltage-dependant registor 10 is connected in parallel with the load 3 and the transient current is absorbed, then the generation of abnormal voltage can be avoided. The voltage- current characteristics of the voltage-dependant resistor has a relation of I=kV<n> (where; k is a constant and n=3-4).
Patent JP-S63258917-A (JP)
Title: Continuous wearing contact lens improved in physical characteristics
Inventor: UIRIAMU JII DEIICHIYAATO
IPC: C08F220/22
Filed: 1988-02-01
Abstract: The physical properties of highly oxygen-permeable continuous-wear contact lenses, comprising a copolymer of an organosilicone monomer, a fluoroalkyl ester monomer and a hydrophilic monomer, are improved by the further addition of a linear polysiloxane oligomeric cross-linking agent with or without neopentylglycol dimethacrylate.