baber/WOPTO huggingface dataset:
Patent JP-H05132485-A (JP)
Title: New methotrexate derivative
Inventor: MATSUOKA KOJI
IPC: A61P29/00
Filed: 1991-08-13
Abstract: PURPOSE:To provide the subject compound useful as an antirheumatic agent because of its strong antirheumatic activity and low toxicity. CONSTITUTION:A compound of formula I [R1 is CH2, CH2CH2, CH2S, etc.; R2, is 1-4C alkyl, benzyl; R3 is COOR4 (R4 is H, 1-4C alkyl), NHCOR5 (R5 is phenyl which may be substituted), etc.; n is 1-4]. For example, N-[1-[(2,4- diamino-6-puteridinyl) methyl] indoline-5-carbonyl]-L-glutamic acid. The compound of formula I is obtained e.g. by stirring a compound of formula II (A1 is protecting group) in the presence of an acid-halogenating agent in DMF, etc., condensing the obtained compound of formula III with a compound of formula IV in the presence of an inorganic base, removing the protecting group from the condensation product with anisole, etc., dissolved in a hydrogen bromideacetic acid solution, and subsequently reacting the product with a compound of formula V (X is halogen).
Patent JP-H03168215-A (JP)
Title: Processing of poly(arylene sulfide sulphone) polymer
Inventor: RETSUKUSU REO BOBUSEIN
IPC: C08G75/02
Filed: 1990-10-25
Abstract: PURPOSE: To improve the heat stability and purity of a polyarylene sulfide/ sulfone polymer by bringing it into contact with a soluble zinc compd. and then with an acidic soln.  
     CONSTITUTION: A polyarylene sulfide/sulfone polymer (pref. polyphenylene sulfide/sulfone obtd. by the copolymn. of a dihaloarom. sulfone, an alkali metal sulfide, and a polar org. compd.) is brought into contact with a soluble zinc compd. (pref. zinc acetate) pref. at 0-300°C and then with an acidic soln. (pref. acetic acid, etc.) pref. at 0-300°C, is recovered by filtration, etc., and is washed with water, etc., to give a high-purity polyarylene sulfide/sulfone polymer excellent in heat stability and clarity. 
     COPYRIGHT: (C)1991,JPO
Patent JP-H07142697-A (JP)
Title: Optical semiconductor device
Inventor: AZUMA TOSHIO
IPC: H01L27/15
Filed: 1993-11-17
Abstract: PURPOSE:To lessen an optical semiconductor device in oscillation threshold and polarization dependence by a method wherein a selective light absorbing layer possessed of a tensile strain is inserted into a first clad layer of certain conductivity formed on a semiconductor substrate or a second clad layer of conductivity opposite to that of the first clad layer. CONSTITUTION:An N-type InP first clad layer 2a is arranged on an N-type InP substrate 1, and an N-type GaAsP distortion layer 3 possessed of tensile distortion 1% or so is formed thereon. The distortion layer 3 functions as a light absorbing layer when it is turned depleted. Furthermore, a thin N-type InP second clad layer 2b is arranged on the distortion layer 3. By this setup, the distortion layer 3 is high in light absorption coefficient to a TM mode, so that an optical semiconductor device of this constitution can be controlled in light absorption free from polarization dependence as a whole.
Patent JP-2001105482-A (JP)
Title: Method for manufacturing hollow body
Inventor: SUZUKI MASAAKI
IPC: B29L22/00
Filed: 1999-10-08
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for easily manufacturing a hollow body by using two sheets. SOLUTION: Two sheets 21 and 22 are overlapped together, and in the state of heating the overlapped two sheets 21 and 22 at the given temperature, both sheets 21 and 22 are made to adhere each other and vacuum formed or the air-pressure formed by using the protruded mold or a recessed mold 41, and during or before or after the vacuum forming or the air-pressure forming, the peripheral edges of the two sheets 21 and 22 are welded to manufacture a hollow body 10.
Patent JP-S62147663-A (JP)
Title: Molten carbonate fuel cell
Inventor: HADO KAZUHITO
IPC: H01M8/02
Filed: 1985-12-20
Abstract: PURPOSE:To increase corrosion resistance by using an alloy obtained by containing a specified amount of aluminum in iron, chromium, or nickel as a material in a part in contact with molten carbonate or its vapor in a molten carbonate fuel cell. CONSTITUTION:A molten carbonate fuel cell is operated by using hydrogen as fuel and air as oxidizing agent at high temperature. An alloy containing 1-70wt%, preferably 5-30wt% aluminum in iron, chromium, or nickel is used as a material of cell mount, bipolar plate, active material gas distributer, and active material gas supply pipe which are in contact with molten carbonate or its vapor. Since aluminum reacts with alkali metal carbonate to form an oxide such as lithium aluminate, cementation and corrosion resistance are increased. Cell performance is keep high over a lengthy period of time.
Patent JP-2001110496-A (JP)
Title: Metal fitting for female terminal
Inventor: MAKITA YASUMITSU
IPC: H01R13/115
Filed: 1999-10-08
Abstract: PROBLEM TO BE SOLVED: To avoid decrease in the strength of wall parts is caused by a cutting and standing up of the wall parts in a metal fitting of a female terminal, where deflection regulation parts for regulating an excessive deflection of an elastic contact strip are formed by cutting and standing up the wall parts of an engagement area. SOLUTION: Front and rear sides deflection regulating parts 26F and 26R for regulating an excessive deflection of an elastic contact strip 20 are formed, by cutting and standing up an engagement part 11. The front-side deflection regulation part 26F is formed on a bottom wall 13 of the engagement part, while the rear-side deflection regulation part 26R is formed on a sidewall 14 thereof. Since the two deflection regulating parts 26F and 26R are formed on different wall parts, a smaller area for opening for cutting and erecting each wall part, when compared with, the two being formed on the same wall part, the strength of the wall parts can be maintained.
Patent JP-H01129478-A (JP)
Title: Light-emitting diode
Inventor: NOGUCHI ETSUO
IPC: G02B6/12
Filed: 1987-11-16
Abstract: PURPOSE:To obtain an incoherent light-emitting diode capable of inhibiting FP mode oscillation even when an element length is shortened by narrowly burying an active layer in a current injection section, spreading an active layer to a tapered shape in a non-injection section and burying the active layer in an area wider than the active layer formed to the current injection section. CONSTITUTION:An N-type GaInAsP optical guide layer 2, a non-doped GaInAsP active layer 3 and a P-type InP clad layer 4 are grown onto an N-type InP substrate 1 through LPE method, etc., a current injection section 9 is left to a striped shape of approximately 400mum in width of approximately 3mum along the direction <100> through photoetching, and approximately 200mum length is shaped to a tapered shape of width from 3mum to finally 40-50mum in a non-excitation region 10. An end face buried section 11 is approximately 50mum wide, and no mask is formed. Two trenches 17 holding the active layer 3 and a window layer section 18 in the end face buried section 11 are shaped. P-type and N-type InP current constriction layers 13 and 14 are formed through second LPE. A P-type InP buried layer 15 and a P-type GaInAsP electrode layer 16 are grown, and a P-type ohmic electrode 8 is formed onto the whole surface of the top face of the layer 16 and an N-type ohmic electrode 12 onto the whole surface on the substrate 1 side.
Patent JP-H06139899-A (JP)
Title: Circuit breaker
Inventor: YAMASAKI SHINSAKU
IPC: H01H73/06
Filed: 1992-10-27
Abstract: PURPOSE:To easily insert or extract an accessory device in recesses without removing an auxiliary cover by forming the auxiliary cover closing the recesses of the main cover of a breaker case with a flexible material, and forming bendable linear thin sections on the auxiliary cover. CONSTITUTION:An accessory device is stored in recesses 103, 104 of a main cover 102 fixed to the main base 101 of a circuit breaker, the recesses 103, 104 are closed with an auxiliary cover 109, screws 110 are inserted into insertion holes 111 and screwed into screw holes 112, and the auxiliary cover 109 is fitted to the main cover 102. The auxiliary cover 109 is made of a flexible material (e.g. polyamide resin), and thin sections 115, 116 linearly extended over the whole, edge sections in the longitudinal direction are formed between edge sections 113, 114. When the accessory device is inserted or extracted from the recesses 103, 104, the screws 110A on one edge section (e.g. 113) are removed, the auxiliary cover 109 is bent at the thin sections 115, 116, and the work is facilitated.
Patent JP-H03151944-A (JP)
Title: Apparatus for pulse doppler measurement
Inventor: NISHIYAMA HISASHI
IPC: G01P5/00
Filed: 1989-11-08
Abstract: PURPOSE:To enable a measurement of a high S/N ratio by detecting a phase difference of an ultrasonic pulse, which is received after reflected by an object, from a reference signal and by carrying out a correction of this phase difference and also a modification of average phase difference when an addition average of those phase differences is executed. CONSTITUTION:Ultrasonic pulses transmitted from a transmission circuit 2 are repeatedly sent at an equal pulse spacing T toward a reflecting object 14 through an ultrasonic transducer 1. An ultrasonic pulse reflected from the object 14 is received by a reception circuit 3, its phase is made to compare with a reference signal by a phase comparator 4 and an output Vn is obtained through an A/D converter 5 and a static target removing filter (MTI) 6. This signal indicating a phase vector Vn is supplied to a velocity operation unit 7 one after another. In the velocity operation unit 7, an additive averaging operation is executed by carrying out a correction of Doppler shift angle based on a phase difference averaging method and modifying it to an angle on a new coordinate, wherein an angle nearly the center of the dispersed phase differences is defined as a reference axis. It becomes possible, by using this apparatus, to carry out a measurement of good S/N ratio even in case that the phase differences are widely dispersed by noise contaminations.
Patent JP-H05124572-A (JP)
Title: Scaffold for in-tank inspection of marine vessel
Inventor: FUTAHASHI MAYUMI
IPC: B63B9/00
Filed: 1991-11-05
Abstract: PURPOSE:To facilitate inspection of a ship side by providing a platform, for which a columnar member provided with a rack is fixed to the outer peripheral surface in the axial direction, and a platform having a driving pinion to be engaged with the rack, and by lifting them in such a manner as a caterpillar. CONSTITUTION:When used as a scaffold for in-tank inspection of a marine vessel, two columnar members 2, for which a rack 1 is provided on the outer peripheral surface in the axial direction, a first platform 3, to which one end of each columnar member 2 is fixed, and a second platform 4 having a pinion to be engaged with the rack 1 as well as a hydraulic motor for rotating the pinion, are provided Stoppers 7, 8 to be engaged with vertical materials 32 (23a, 32b...) which are projections in a tank, are provided on each platform 3, 4 so that the stoppers can be freely drawn in and out. The platforms 3, 4 are lifted like caterpillars by the combination of engagement of each stopper 7, 8 with the vertical material 23 and relative lifting movement of the columnar member 2, and the scaffold at a predetermined height is thus ensured.
Patent JP-H04163720-A (JP)
Title: Method and apparatus for manufacturing magnetic recording medium
Inventor: HAKOMORI KAZUMI
IPC: G11B5/842
Filed: 1990-10-26
Abstract: PURPOSE:To equalize the film thicknesses at the front and rear surfaces of the magnetic paint films by moving and approaching drying preventing plates in parallel with a spindle shaft in correspondence with the front and rear surfaces of the magnetic paint film which are formed by applying magnetic paint on a nonmagnetic substrate, and changing the stopping position with a mechanical stopper after the movement. CONSTITUTION:A spindle motor 5 is rotated at a low speed, and magnetic paint is applied on the front and rear surfaces of a nonmagnetic substrate 2 through a nozzle 1. Thus the magnetic paint films are formed. When the spindle motor 5 is rotated at a high speed and the control for the thickness of the magnetic paint films is started, drying preventing plates 3 which are arranged in correspondence with the front and rear surfaces of the nonmagnetic substrate 2 are moved and made to approach in the direction in parallel with a spindle shaft 4 with air cylinders 6, respectively. After the movement, the stopping position can be changed with a mechanical stopper in response to the thicknesses of the magnetic paint films. In this way, the same thickness can be provided for the front and rear surfaces of the magnetic paint film.
Patent JP-S63141755-A (JP)
Title: Recording apparatus
Inventor: ARIGA TORU
IPC: B41J2/14
Filed: 1986-12-04
Abstract: PURPOSE:To increase a thermal efficiency, to enable the attainment of recording with low power an to enable the attainment of density gradation recording by means of overstriking by forming the upper part of a heating body of a thermal head in a recessed shape so that a very small quantity of ink be held therein in a recording apparatus wherein heat recording is conducted while ink is filled up minute holes of a film. CONSTITUTION:A cavity 3 in a recessed shape is provided in the upper part of a heating body 2 of a thermal head. A film 4 with ink 6 applied in minute holes 5 and on the rear moves slidably on the top of the thermal head 1, and the ink 6 is held in the recess 3 with the sliding movement of the film 4. The heating body 2 disposed in the upper part of the thermal head 1 is heated arbitrarily by a driving device, a heat is applied to the ink 6 held in the recessed part 3, and thereby an air bubble 7 is produced. With the growth of this air bubble 7, a pressure toward the outside of the air bubble is generated. The ink 6 inside the minute hole 5 positioned above them heating body 2 is jetted outward by this pressure, and thereby recording is conducted on paper or the like which is disposed oppositely. The ink 6 on the rear of the film 4 is supplemented from the part of contact of the film 4 with the thermal head 1 by the surface tension of ink remaining in the recess 3, and therefore the repeated jetting of ink is enabled without making the film 4 slide afresh.
Patent JP-2000119391-A (JP)
Title: Copoly(ethylene terephthalate/ethylene terephthalamide) and its production
Inventor: NAKANO MASAYOSHI
IPC: C08G69/44
Filed: 1998-10-12
Abstract: PROBLEM TO BE SOLVED: To obtain a copoly(ethylene terephthalate/ethylene terephthalamide) having a high glass transition temperature, excellent in heat resistance and moldability and useful for fibers, films or the like by reacting a poly(ethylene terephthalate) resin with a specific quantity of ethylenediamine in a specific solvent. SOLUTION: This copoly(ethylene terephthalate/ethylene terephthalamide) is obtained by reacting 1 mol (calculated based on a repeating unit) poly(ethylene terephathalate) resin including the repeating unit of formula I [wherein, (m) is 10-500] with 0.05-0.5 mol ethylenediamine in at least one kind of solvent selected from the group consisting of a (halogenated)hydrocarbon-based solvent, an ether-based one, an acetal-based one and an aprotic and, protophobic polar one so as to substitute ethylenediamine for a part of dihydric OH in the poly(ethylene terephthalate) resin to introduce a repeating unit of formula II [wherein, (n) is 1-10], followed by subjecting the reaction product to solid-phase polycondensation or melt polycondensation.
Patent JP-H01130129-A (JP)
Title: Liquid crystal element
Inventor: TOMITA EISUKE
IPC: G02F1/1333
Filed: 1987-11-16
Abstract: PURPOSE:To simplify constitution by forming a high-polymer film contg. a liquid crystal and dichromatic dyes on a substrate on which transparent electrodes are formed and forming transparent electrodes on the high-polymer film. CONSTITUTION:This element is constituted of the substrate 1 on which the transparent electrodes 2a are formed, the high-polymer film 7 contg. the liquid crystal and dichromatic dyes 6 formed on the substrate 1 and the transparent electrodes 2b formed on the high-polymer film 7. The molecular arrangement of the liquid crystal molecules 5 and the dichromatic dye molecules 6 change and the transmitted light and absorbed light change when electric fields are impressed via the transparent electrodes 2a, 2b to the high-polymer film 7. The effect similar to the effect of the conventional liquid crystal element is thereby obtd. as a display element and optical shutter; furthermore, just one sheet of the substrate is necessitated and the need for gap control is eliminated. Since the liquid crystal is oriented in the high-polymer film 7, the need for an oriented film is eliminated. The lighter constitution of the element is possible at the time of forming the large-area element.
Patent JP-H10115644-A (JP)
Title: Optical integrated voltage sensor
Inventor: ITO HIROSHI
IPC: G01R1/07
Filed: 1996-10-11
Abstract: PROBLEM TO BE SOLVED: To provide a voltage sensor, which has a compact configuration and the stable characteristics and has a function for protecting a sensor part from the dielectric breakdown caused by a high voltage input furthermore. SOLUTION: The measuring light applied from an optical fiber 28 is branched into first and second modulating waveguides 15a and 15b in a branching and wave synthesizing part 19 in an optical integrating circuit 32. Voltages are applied in modulating electrodes 34a and 34b so that the positive and negative signs are reverse to each other. Thus, the signs of the respective phase changes propagating in the first and second modulating waveguides 15a and 15b are reverse to each other. The phase difference is generated between both sides. Then, the measuring light is reflected from a reflecting surface 40, propagated in the first and second modulating waveguides 15a and 15b and made to pass the optical-intensity modulation part again.  By receiving the phase modulation, the phase difference of the measuring light advancing in the reverse direction in the first and second modulating waveguides 15a and 15b can be made approximately twice of the phase difference of the measuring light immediately before the reflection from the reflecting surface 40.
Patent JP-H02136274-A (JP)
Title: Image forming system
Inventor: KOISHIKAWA AKIRA
IPC: B41J2/385
Filed: 1988-11-16
Abstract: PURPOSE:To perform system control in an optimum condition by outputting changes in controllable/uncontrollable status of additional devices after the end of initialization of an image forming system, from an image forming device to an image processor by serial communication. CONSTITUTION:After start-up of an image forming system, any change in controllable/uncontrollable status of additional devices such as a multi-stage paper supplying device 5A, a large-amount paper supplying device 5B, an inverting and paper discharging device 5D and a feeder for both-side recording 5E is detected by a main body 4 of an image forming device through a serial communication line SB according to commands from a command issuing means 4b. The main body sends this information to a host system 1, whereby an optimum system control is constantly performed. Thus, even when turning-ON or turning-OFF of a power supply, fitting or detachment, failure/recovery or the like occurs at the additional device on an individual basis after initial setting, the newest information can be obtained at the host system, and it is possible to give the information to the operator by displaying or to perform an optimum control.
Patent JP-H02136309-A (JP)
Title: Wheel suspension device for automobile
Inventor: SEKINO YOSUKE
IPC: B60G7/02
Filed: 1988-11-16
Abstract: PURPOSE:To enhance the twisting stiffness of a pivot as well as to make a device light in weight concurrently by improving the structure of the pivot in the device which permits one end side section of the respective based ends of control arms at an upper and a lower section supporting a wheel in such a way as to be vertically rocked, to be held by the pivot onto a car body. CONSTITUTION:A knuckle 2 rotatably supporting a wheel 1, is held onto a car body by means of respective upper and lower control arms 3 and 4 the outer end sides of which are connected with the upper and lower end sections of the knuckle. The respective control arms 3 and 4 are branched into paired arm sections 3f and 3r: 4f and 4r at their base end sides, then, the end sections of the arm sections 3f and 4f of respective front sections are held onto the car body by a pivot 12. In this case, the pivot 12 is furnished with paired cylinders 13 and 14 which are arranged up and down so that it is constituted to permit paired upper and lower branch arms 15 and 16 which are provided for the respective cylinders 13 and 14 in such a way as to be projected afterward to be connected by a connecting stem 17. In addition, elastic members are arranged respectively between the respective shaft cylinders 13 and 14 and core shafts 22 and 23 which are arranged at the center of the shaft cylinders so as to be fixed onto the car body.
Patent JP-H05123578-A (JP)
Title: Manufacture of hydrocarbon conversion catalyst
Inventor: INO TAKASHI
IPC: C10G11/05
Filed: 1991-11-06
Abstract: PURPOSE:To provide a catalyst effective and suitable for a fluidizing and catalytic cracking catalyst for heavy oil by using a magnesium silicate salt mineral containing magnesium as an oxide in a specified range for a metal capturing agent of a hydrocarbon conversion catalyst. CONSTITUTION:As an agent to capture a metal contained in a slurry, a magnesium silicate salt mineral such as a serpentine, olivine, etc., containing 10-60wt.% of magnesium as an oxide is used. The metal capturing agent is previously treated with a phosphorus containing solution such as an aqueous phosphoric acid solution and an aqueous mixed solution of phosphoric acid and ammonia. Together with a binder, a crystalline aluminosilicate zeolite and the treated metal capturing agent are kneaded to obtain a slurry. Then, the slurry is sprayed and dried to give the objective hydrocarbon conversion catalyst. The catalyst obtained in this way is especially suitable for catalytic cracking of heavy oil containing nickel and vanadium.
Patent JP-H01131083-A (JP)
Title: Sintered hollow material of ceramic
Inventor: SAWADA MINORU
IPC: B22D1/00
Filed: 1987-11-17
Abstract: PURPOSE:To obtain a sintered hollow ceramic material having excellent heat- insulation and sound shielding properties, by applying a green ceramic to an outer circumference of a core made of combustible material and baking the product. CONSTITUTION:The objective sintered hollow ceramic material can be produced by applying a green ceramic 5 to the outer circumference of a core 4 made of a combustible material and baking the ceramic. The combustible material is burnt out by the baking treatment and the green ceramic applied to the outer circumference of the combustible material is baked to form a sintered hollow ceramic article having excellent strength and durability and exhibiting the heat-insulation and sound-shielding properties, etc., by the air existing in the sintered hollow ceramic. The shape of the sintered hollow ceramic 1 is usually sphere from the viewpoint of productivity and the adhesivity of magnesia, etc., however, it may be elliptic, cube, etc. The green ceramic may be alumina, silica, etc., as well as magnesia.