baber/WOPTO huggingface dataset:
Patent JP-H0191672-A (JP)
Title: Inverter device
Inventor: SHIMIZU KEIICHI
IPC: H02M7/48
Filed: 1987-09-30
Abstract: PURPOSE:To enhance conversion efficiency by providing with a pair of switching devices between both terminals of a partial pressure circuit and providing with an output circuit having a parallel resonance circuit between a node of these devices and a voltage dividing point of the partial pressure circuit. CONSTITUTION:When a switching device 24 is turned on, a condenser 22- an inductor 29- the device 24- a parallel resonance circuit 27- a closed circuit of the condenser 22 is constituted, and the circuit 27 generates the resonance output. Then, when the device 24 is off and a switching device 25 is on, a condenser 23- the circuit 27- the circuit 25- an inductor 30a closed circuit of the condenser 23 is constituted, and energy is stored in the condenser 30 so that the constant current operation is continuous regardless of switching by inductors 29 and 30. Accordingly, the circuit 27 generates the resonance output as well as the above. In addition, the capacity of condensers 22 and 23 at the partial pressure circuit 20 can be selected as required so that a ripple of the voltage dividing point can be optional.
Patent JP-H1093174-A (JP)
Title: Light amplifier
Inventor: YOSHIDA MINORU
IPC: H01S3/10
Filed: 1996-09-18
Abstract: PROBLEM TO BE SOLVED: To further improve gain with respect to signal light and also improve the S/N ratio of the signal light. SOLUTION: Amplifying optical fibers 2a, 2b are provided, and an ASE removing optical fiber 3 is connected with the amplifying optical fibers 2a, 2b. The ASE removing optical fiber 3 has its bending diameter and length set to satisfy the conditions (1) λs>λc' and (2) λASES<λc, where λs represents the wavelength of the signal light, λASES represents the lower limit value in a wavelength range of spontaneous emission light (ASE), generated inside of the amplifying optical 2a, 2b, λc' represents the cut-off wavelength, and λc represents the upper limit value in a wavelength range, representing the increase in loss when predetermined bending is applied to the ASE removing optical fiber 3.
Patent JP-H1183029-A (JP)
Title: Halogen cooking applilance
Inventor: KANEKO YASUNORI
IPC: F24C7/04
Filed: 1997-09-11
Abstract: PROBLEM TO BE SOLVED: To eliminate limits in a cooking range and a menu due to adherence of dirt or stuck by heat by constituting to sense temperature of a heat resisting glass surface by a temperature sensor contained in a cooking appliance, and to control it at available temperature of a coating layer. SOLUTION: When a halogen lamp 10 of the halogen cooking appliance is energized, heat of high temperature is generated via a quartz tube. Thus, temperature of heat resisting glass is gradually raised, and hence temperature of fluorine coating layer 16 on a surface of the glass is raised as well. A temperature sensor 14 senses temperature of a heating zone part of the glass and controls so as not to become predetermined temperature or higher. Thus, there is no fear of deteriorating a fluorine film by the heat, and adherence of dirt or stuck to the glass surface is stably prevented. Hence, long clean heating surface can be ensured. As a result, a problem due to the dirt of the glass does not occur. A cooking range and a menu of the halogen cooking appliance can be enlarged to a great extent.
Patent JP-S62108836-A (JP)
Title: Aromatic alkane derivative, production thereof and insecticide containing said derivative as active component
Inventor: KITAJIMA ATSUJI
IPC: C07C67/00
Filed: 1985-11-05
Abstract: NEW MATERIAL:The compound of formula I (X and Y are H or F). EXAMPLE:1-(4-Fluoro-3-phenoxyphenyl)-3-(2,2,3,3-tetramethylcyclopropyl )propane. USE:Insecticide. PREPARATION:The compound of formula I can be produced by (1) chlorinating 2,2,3,3-tetramethylcyclopropylmethanol with thionyl chloride, (2) reacting the resultant compound of formula II with Mg to obtain a Grignard reagent, (3) reacting the reagent with methyl orthoformate and then treating with an acid, (4) subjecting the obtained compound of formula III and a phosphorus compound of formula IV [R is -P(=O)(OR1)2 or -P<+>(Ph)3Z<->; R1 is lower alkyl; Z is halogen] to Wittig reaction and (5) catalytically reducing the resultant compound of formula V in the presence of a Pd catalyst, etc., preferably in a solvent. The compounds of formula II, III and V are novel.
Patent JP-H0693978-A (JP)
Title: Variable volume vane pump
Inventor: YAMAMOTO TOSHIHIKO
IPC: F04C2/344
Filed: 1992-09-16
Abstract: PURPOSE:To suppress vibration of a cam ring owing to a pressure in a pump chamber. CONSTITUTION:A rotor 34 and vanes 40A-40C are contained at the inside of a cam ring 26 swung in a side housing 10. A protrusion part 46 is formed on the outer peripheral part of the cam ring 26 and first and second pressure control chambers 60L and 60R are formed on both sides thereof. First and second holes H1 and H2 communicated with the first pressure control chamber 60A and third and fourth holes 3 and 4 communicated to the second pressure control chamber 60R are formed between a fluid suction groove 20 and a liquid delivery groove 22. Rotor protrusion part 37a and a recessed part 37b to open and close the holes 1-H4 are formed in a rotor 34. Rocking of the cam ring owing to a pressure in the pump chamber 29 is suppressed by means of a difference in an internal pressure between the two pressure control chambers 6OL and 60R occasioned by opening and closing thereof.
Patent JP-H03112416-A (JP)
Title: Cultivation of lepidium sativum l
Inventor: SETO ATSUSHI
IPC: A01G1/00
Filed: 1989-09-25
Abstract: PURPOSE:To enable to equalize the qualities of Lepidium sativum L and stably cultivate the Lepidium sativum L in a high density in a constant space by sowing seeds on a medium comprising a foamed plastic, germinating the seeds, raising and subsequently harvesting the raised Lepidium Sativum L as bud vegetables. CONSTITUTION:A continuous medium 3 is spread in a sowing tray 2 and seeds 4 are sowed on the medium 3. Water or a nutritive solution is preliminarily absorbed in the medium 3, and the desired seeds and water in a volume of 2-5 times the volume of the seeds the charged to a container and stirred in a suspension state wherein the seeds are homogeneously dispersed in the slim- like solution. The suspension is coated on the surface of the medium 3 with a spatula or roller. The seeds are highly densely and uniformly sowed on the surface of the medium in the dispersed and adhered state without overlapping. After sowing, the tray carrying the medium 3 is transferred into a darkened germination chamber and allowed to stand for approximately 2 days until the cotyledons of the seeds generate and open or substantially open. The medium is subsequently divided into small media and transferred into package boxes for shipment.
Patent JP-H0559100-A (JP)
Title: Lectin b obtained form tachypleus tridentatus and its separation and purification
Inventor: MATSUKAWA MASAHITO
IPC: C07K14/435
Filed: 1991-09-02
Abstract: PURPOSE:To provide a novel lectin B obtainable from the blood lymph of Tachypleus tridentatus, having affinity for sialic acid and sialic acid-bound glucid, or human and animal erythrocytes, thus useful for reagents to detect N-acetylneuraminic acid in biological samples. CONSTITUTION:A column is packed with a substrate for affinity chromatography made by binding sialoglycoprotein (e.g. glycophorin HA) extracted from horse's erythrocyte membrane by conventional means to a solid phase carrier (e.g. Affigel 10), and the blood lymph of Tachypleus tridentatus is injected into the substrate, and the matter not adsorbed is washed away. Thence, the matter adsorbed to the substrate is eluted with a 50mM tris-hydrochloric acid buffer solution (pH 7.2) containing 0.3 M NaCl to collect the adsorbed fraction, which is, in turn, put to gel filtration and purified, thus giving the objective lectin B having affinity for sialic acid and sialic acid-bound glucid and human and animal erythrocytes, with its hemagglutination ranking represented by +++, ++, and - for horse, human, and chicken erythrocytes, respectively.
Patent JP-H04125920-A (JP)
Title: Growth method of semiconductor thin film
Inventor: OGURA ATSUSHI
IPC: H01L21/205
Filed: 1990-09-17
Abstract: PURPOSE:To obtain a semiconductor thin film, by forming two silicon oxide films on a silicon substrate, interposing a polycrystalline silicon film between the silicon oxide films, forming a cavity region by processing, and utilizing selective growth in the lateral direction. CONSTITUTION:A first silicon oxide film 20 is formed on the surface of a silicon substrate 10 by thermal oxidation method. By photolithography and etching, an aperture is formed in the film 20, and a part of the substrate 10 surface is exposed. Only in the aperture, silicon is eptiaxially grown, and thereon polycrystalline silicon 40 is deposited. A second silicon oxide film 50 is deposited, and an aperture is formed. Hydrogen chloride gas is introduced, and the polycrystalline silicon 40 is etched from the aperture, thereby forming a cavity region. After that, trimethyl galliunm is selectively grown by using arsine gas, and the cavity part is filled back with a gallium arsenide thin film 60. Thereby, dislocation density and crystal defect are decreased as the silicon oxide film 20 is grown in the lateral direction, and a large area semiconductor thin film whose lattice constant is different from silicon can be obtained.
Patent JP-H08110669-A (JP)
Title: Color image forming device
Inventor: KOBAYASHI MASAKAZU
IPC: G03G15/01
Filed: 1994-10-12
Abstract: PURPOSE: To provide a color image forming device capable of preventing color slurring without enhancing the dimensional accuracy and the attaching accuracy of an image carrier belt and a driving roll, preventing it even when thermal expansion and contraction is caused based on temperature change and preventing it without causing the rise of cost. CONSTITUTION: This color image forming device is provided with an intermediate transfer belt device 16 constituted of an inner belt 17A frictionally contact with an intermediate transfer belt 15, an inner belt driving roll 17B driving the inner belt 17A through a driving transmission system from a motor, a tensioner 17C giving specified tensile force to the inner belt 17A by a spring 27 stretched between the main body of the color image forming device and the tensioner 17C, and a guide 17D fixed so that the inner belt 17A may be brought into contact with the outer peripheral surface of the driving roll 17B. The radius of the driving roll 17B is made fixed by correcting eccentricity by the pressing of the guide 17D.
Patent JP-H1175600-A (JP)
Title: Electronic name plate for pet and livestock, and management system for pet and livestock by using the same
Inventor: MORISHIMA MASAHIKO
IPC: A01K11/00
Filed: 1997-09-11
Abstract: PROBLEM TO BE SOLVED: To provide an electronic name plate for a pet and a livestock, readily carried by a small animal or the like, readily attached thereto by using a recording medium capable of allowing the properties of the animal to be readily confirmed, and further to provide a system for managing the pet and the livestock by using the electronic name plate. SOLUTION: This electronic name plate 1 for a pet and a livestock is the one attached to a collar 10 for the pet and the livestock and having an information-recording means and has a recording medium incorporated therein. The recording medium can be subjected to a recording medium-reading machine to readout the recorded information.
Patent JP-H1188799-A (JP)
Title: Monitor operation console
Inventor: FURUBE SHOZABURO
IPC: H04N7/18
Filed: 1997-09-11
Abstract: PROBLEM TO BE SOLVED: To move a monitor and an engineering key board at a position at which the operator easily conducts confirmation and operation and to ensure a space for an office job by providing 1st and 2nd support members to move a monitor and the engineering key board to a rear side and a side face from a desk respectively. SOLUTION: An engineering key board 6 is fitted freely turnably to both side faces of the monitor operation console 1 via a mount member 4. Furthermore, a thin profile LCD 5 is fitted to a rear side of the monitor operation console 1 via the mount member 4. Thus, the vertical turning, horizontal turning (oscillation) and horizontal sliding of the thin profile LCD 5 and containment of the LCD 5 into a monitor container board 2 provided to the rear side of the monitor operation console 1 are attained, and the vertical turning, horizontal turning (oscillation) and horizontal sliding of the engineering key board 6 LCD 5 and containment of it into an engineering key board container board 3 provided to both sides of the monitor operation console 1 are attained.
Patent JP-H03109133-A (JP)
Title: Transfer supporting structure for four-wheel drive vehicle
Inventor: SAGARA KIYOSHI
IPC: B60K17/34
Filed: 1989-09-22
Abstract: PURPOSE:To improve the supporting rigidity and noise/vibration suppressing performance by installing the front and rear side parts of a transfer which is directly connected to a differential gear and transmits the driving power of an engine to a wheel, on the engine through gussets. CONSTITUTION:Behind a transmission 9, a differential gear 12 is arranged, and a differential center Y is arranged in parallel to a transmission center Z, and interlocked with the transmission 9 through an idler 13. In the upper part of the differential gear 12, an engine 14 having a crankshaft center X is arranged behind the transmission center Z and above the differential center Y. Further, a 4WD transfer 20 is directly connected to the differential gear 20. Further, the front and rear side parts of the 4WD transfer 20 are fixed to the installation flange 29 of an oil pan 28 with a bolt 30 through the front and rear gussets 26 and 27.
Patent JP-2001067628-A (JP)
Title: Magnetoresistive element, production of magnetoresistive element, system for detecting magneto-resistance and magnetic recording system
Inventor: HAYASHI KAZUHIKO
IPC: G11B5/40
Filed: 1999-09-01
Abstract: PROBLEM TO BE SOLVED: To eliminate the occurrence of short-circuit between a lower electrode layer and an upper electrode layer at the time of manufacturing a magnetoresistive element. SOLUTION: A magnetoresistive element 2 has the lower electrode layer 8 which is formed on a lower shield layer 4 via a lower gap layer 6, a magnetoresistive film 10 which is formed in a part of a region on the lower electrode layer 8 and the upper electrode layer 12 which is formed above the lower electrode layer 8 and at least a part of a lower surface of which extends while being in contact with an upper surface of the magnettoresistive film 10. Further the upper electrode layer 12 is constituted of a first upper electrode layer 22 and a second upper electrode layer 24 and whole of the second upper electrode layer 24 extends in a forming region of the lower electrode layer 8 at planar view.  Accordingly, even if roughness of an edge part 20 of the lower electrode layer 8 is increased by being exposed to a release agent solution in which a photoresist is dissolved at the time of manufacturing, no upper electrode layer exists above the edge part 20 of the lower electrode layer 8 and thereby causing no electric short-circuit between the lower electrode layer and the upper electrode layer.
Patent JP-S63102409-A (JP)
Title: Temperature fluctuation compensating circuit
Inventor: TSUYAMA ISAO
IPC: H03F3/45
Filed: 1986-10-20
Abstract: PURPOSE:To attain stable differential amplification by compensating a gain temperature characteristic of a 2nd differential amplifier set to a desired gain by the gain temperature characteristic of a 1st differential amplifier so as to prevent the gain fluctuation due to temperature fluctuation. CONSTITUTION:The 1st differential amplifier 1 consists of transistors (TRs) Q1, Q2 pair and the 2nd differential amplifier 2 consists of TRs Q5, Q6 pair. Then a series circuit comprising a resistor 3 and a diode 4 is connected as a load circuit of the TRs Q1, Q2 of the amplifier 1 so as to have an inverse characteristic as the gain temperature characteristic of the amplifier 2 and a signal fed to an input terminal 5 is amplified differentially and outputted from an output terminal 6. As a result, the amplifier 1 has a characteristic whose gain rises as temperature rises and the amplifier 2 has a characteristic whose gain is decreased as temperature rises and the temperature gain characteristic of the amplifier 2 set to a desired gain is compensated by the amplifier 1. Thus, in case of circuit integration, the gain is not fluctuated by temperature change and stable differential amplification is attained.
Patent JP-H0986467-A (JP)
Title: Intake system mud proof structure for unit swing type engine
Inventor: NISHIGAYA MITSUMASA
IPC: B62J15/00
Filed: 1995-09-26
Abstract: PROBLEM TO BE SOLVED: To make a vehicle compact via the reduction of a lower fender size, enable a sufficient proof effect to be expected against mud, and eliminate a trouble even in the case of adjusting a carburetor. SOLUTION: This intake system mud proof structure A for a unit swing type engine is provided with a lower fender 5A having a shield 13 to cover the immediate rear part of a carburetor 9 laid in the vicinity of a position forward of the rear wheel upper part of a motorcycle or a motor tricycle equipped with a unit swing type engine.
Patent JP-H0991942-A (JP)
Title: Disk driver
Inventor: KONNO MAKOTO
IPC: G11B33/12
Filed: 1995-09-26
Abstract: PROBLEM TO BE SOLVED: To obtain a disk driver contributing cost reduction by decreasing a sheet metal material area for making an ejection plate. SOLUTION: A protrusion 118 for regulating the deformation and biasing in a direction for approaching the side plate of the main frame of a side plate part is formed inward at parts corresponding to side plate parts 122 and 123 of an ejection plate 120. The area of the required sheet metal can be reduced by the regulation utilizing the main frame side plate.
Patent JP-H1156886-A (JP)
Title: Nose forming device
Inventor: SHIMURA YUMIKO
IPC: A61F5/01
Filed: 1997-08-08
Abstract: PROBLEM TO BE SOLVED: To provide a nose forming device to be suited the size of any nose by inserting and pinching the tip of the nose. SOLUTION: An inserting tool with a spring 1 is provided with an adjusting bolt 3 and a buffering material 5 is provided inside of the inserting tool. In addition, knobs 4 on the side surface of the inserting tool are provided an formed to be of a size without covering a nostril.
Patent JP-H0692899-A (JP)
Title: Selective carboxylation at para position of phenols
Inventor: WATABE YASUYOSHI
IPC: C07C65/03
Filed: 1992-09-17
Abstract: PURPOSE:To selectively produce a para-hydroxybenzoic acid without generation of a salicylic acid or a 4-hydroxyisophthalic acid as a by-product while simplify ing separation and purification by reacting carbon dioxide with a quaternary phosphonium salt of a phenol. CONSTITUTION:A phenol (e.g. phenol) is mixed with toluene and a 40wt.% aqueous solution of tetra-n-butylphosphonium hydroxide is added thereto. The resultant mixture is stirred for 1 hour while blowing nitrogen gas thereinto and then subjected to a dehydration reaction at 88 to 112 deg.C. Toluene is subsequently recovered by heating the reaction mixture and a quaternary phosphonium salt of the phenol is obtained. The resultant compound is then dissolved in dimethylformamide and heated up to 140 deg.C at the ordinary pressure in an atmosphere of nitrogen. Immediately after reaching the temperature, carbon dioxide is introduced and substituted for nitrogen so as to be allowed to react therewith. Thus, the objective para-hydroxybenzoic acid can selectively be produced in a high yield without generation of a salicylic acid or a 4- hydroxyisophthalic acid as a by-product while simplifying the separation and purification process.
Patent JP-S61126602-A (JP)
Title: Magnetic head
Inventor: OTOGAWA TAKAO
IPC: G11B5/105
Filed: 1984-11-26
Abstract: PURPOSE:To prevent satisfactorily tape squeaking by adding fluorine polymer powder subjected to a surface treatment by an org. solvent to a fixing material which fixes a magnetic core. CONSTITUTION:The magnetic core 1 is constituted into a ring shape by butting and joining, via a magnetic gap G, a pair of magnetic core halves 1a, 1a constituted of the laminate of, for example, thin magnetic sheets of high magnetic permeability. The core 1 is fitted into a shielding case 2. The top end having the magnetic gap G is positioned to face an aperture 2a formed on the sliding surface S side of the case 2. The magnetic core is fixed by the 1st and 2nd fixing materials 4, 4 packed into the case 2. The 1st fixing material 4 formed by adding powder of silica and calcium carbonate as a filler to an epoxy resin 5 used as a base material is packed into the part except the part near the aperture 2a like in the known constitution. The 2nd fixing material 3 formed by adding the fluorine polymer powder 6 treated preliminarily with the org. solvent to the base material consisting of the epoxy resin 5 is packed near the aperture 2a so as to face the sliding surface S.
Patent JP-2001077646-A (JP)
Title: Light-receiving device
Inventor: MASUDA TORU
IPC: H04B10/60
Filed: 1999-09-02
Abstract: PROBLEM TO BE SOLVED: To reduce a source voltage by composing an automatic gain control amplifying circuit of a variable transconductance circuit, which varies with the voltage applied to a transconductance adjustment terminal and an active load circuit, equipped with a bias circuit which shunts respective output currents of the variable transconductance circuit. SOLUTION: This variable transconductance circuit 51 can be composed of one stage of a differential pair by inserting potential difference generating circuits 31a and 31b between the bases of transistors Q1 and Q2, and Q3 and Q4 respectively. The active load circuit 52 with the bias circuit has its voltage drop reduced by making the output current of the variable transconductance circuit 51 flow directly to a constant-voltage terminal V12 by the bias circuit, composed of resistances R15 and R16 inserted between the bases of transistors Q11 and Q12 and the constant-voltage terminal V12 for the highest-order voltage of the optical reception device.
Patent JP-H05212-A (JP)
Title: Dehydrator
Inventor: FUKUSHIMA YOSHITAKA
IPC: B01D29/88
Filed: 1991-06-24
Abstract: PURPOSE:To obtain a dehydrator capable of reducing the content of moisture contained in the scooped substance such as sand and ore. CONSTITUTION:A notch is formed to the bottom part of an inclined tank 1. A dehydration frame fitted with a screen is attached to this notch via the vibration-proof material 4. Moreover both a vibration motor 8 and an elastic body 9 are provided to the lower part of the dehydration frame 5. Thereby vibration is given to the scooped substance such as sand and ore which are moved on the screen 7. Moisture contained in the scooped substance is dehydrated from the screen 7.