baber/WOPTO huggingface dataset:
Patent JP-H07292083-A (JP)
Title: Monodisperse polymer and production thereof
Inventor: INOUE SHOHEI
IPC: C08G64/30
Filed: 1995-01-31
Abstract: PURPOSE:To efficiently obtain a monodisperse lactone polymer having an extremely narrow mol.wt. distribution by using a specific organoaluminum compound as a Lewis acid catalyst to react two lactone monomers by ring- opening addition in the presence of an initiator. CONSTITUTION:A lactone monomer (e.g. delta-valerolactone) is reacted by ring- opening addition reaction in the presence of an initiator (e.g. ethylene glycol) and as a Lewis acid catalyst an organoaluminum compound represented by the formula (wherein R is a 1-4C alkyl; Y is H or a substituent, and (p) is 1, 2, or 3) (e.g. 2,6-di-tert-butyl-4-methylphenol disubstituted aluminum) to obtain a monodisperse lactone polymer. Reacting a cyclic carbonate monomer (e.g. propyl glycol carbonate) in place of the lactone monomer by ring-opening addition reaction gives a monodisperse carbonate polymer. The lactone or carbonate polymer is suited for use as a material for a polyurethane, coating composition, etc.
Patent JP-S61197161-A (JP)
Title: Dressing device
Inventor: CHIKAMOTO TAKESHI
IPC: B24B53/08
Filed: 1985-02-25
Abstract: PURPOSE:To enable a dressing operation to be easily and accurately performed without skill by a power drive for free rotation and transverse movement of a dresser holder. CONSTITUTION:A dresser holder 31 is mounted on the front end of a spindle 7 through a movable disk 19 and an arbor 25. Also a pinion gear 39 which is rotated by a hydraulically reciprocating rack member 43 is provided on the spindle 7, which rotates the dresser holder 19. A pinion shaft 47 is rotatably provided in the spindle 7. A rack 55 mounted on the movable disk 19 is actuated by a pinion 53 by rotating the pinion shaft 47 by a rack member 67 and the movable disk 19 is laterally moved with respect to the spindle 7. The combination of these operations performs a desired operation of the dresser holder 31.
Patent JP-S63206157-A (JP)
Title: Refrigerant supplying device for superconducting rotor
Inventor: WATANABE YUTAKA
IPC: H02K55/04
Filed: 1987-02-19
Abstract: PURPOSE:To maintain a liquid level position in a rotor in a predetermined range and to automatically regulate a stable liquid surface level position by balancing the pressure in a vapor refrigerant supplying tube and the pressure in an axial refrigerant supplying tube, and stopping the supply of the refrigerant. CONSTITUTION:Even if a radial supplying tube 3b is merged at its end under the liquid surface of liquid refrigerant 6, the liquid refrigerant is fed from an external liquid refrigerant reservoir through a bayonet 3a into a rotor while a vapor refrigerant supplying tube 3c is open at its end within vapor refrigerant 7. When the liquid surface rises so that the end of the tube 3c is merged in the refrigerant 6 with the result that no escaping routes of the vapor refrigerant are present, the pressure of the tube 3c rises, the pressures before and after an automatic closing valve 8 are balanced, the valve is closed by a spring 8a, and the liquid supply from an axial refrigerant supplying tube 3 is stopped. When the liquid surface level drops so that the end of the tube 3c is opened within the refrigerant 7, the pressure in the tube 3c drops to the pressure in the rotor. Accordingly, the valve 8 is opened, and the liquid refrigerant is returned to a predetermined position.
Patent JP-H01208831-A (JP)
Title: Manufacture of semiconductor device
Inventor: HAMADA HIROYUKI
IPC: H01L23/522
Filed: 1988-02-16
Abstract: PURPOSE:To prevent the extension of an opening section for a contact by forming a nitride film onto an insulating film on a semiconductor substrate and the opening section for the contact reaching an element region and conducting anisotropic etching so that the nitride film is left on the sidewall of the opening section. CONSTITUTION:An insulating film 5 composed of an oxide is shaped onto an silicon substrate 1, to which a diffusion layer 4, a thermal oxide film 2 and an electrode 3 are formed, through a CVD method, and an opening section 6 for a contact is shaped to the insulating film 5 on the diffusion layer 4 through anisotropic etching. A nitride film 7 is formed onto the insulating film 5 and the opening section 6, anisotropic etching is performed so that the nitride film 7 is left only on the sidewall of the opening section 6, and a thin oxide film 9 shaped onto the surface of the silicon substrate 1 in the opening section 6 with the lapse of, time is etched with HF and removed. Since the nitride film 7 is left on the sidewall section of the opening section 6 at that time, the opening section 6 is not extended, thus improving the degree of integration.
Patent JP-S54127272-A (JP)
Title: Hot-cathode electron source unit
Inventor: SAITOU KOUJI
IPC: H01J37/06
Filed: 1978-03-25
Abstract: PURPOSE: To prolong the lifetime of a LaB 6  hot cathode without hindrance to practical use by enabling the heating temperature of the LaB 6  hot cathode to vary with the diameter of an electron beam striking a sample.  
     CONSTITUTION: By a current supplied from a power supply unit, LaB 6  hot cathode 1 is heated under high vacuum, and electron beam 2 generated is focused by electron lenses 3 and 4 and then caused to strike sample 5. Then, an electron-beam spot formed on sample 5 generates information on the shape and material of a sample such as a secondary electron to control electron beam 13 of cathode-ray tube 12, thereby varying the brightness of the phosphor of the cathode-ray tube screen. At this time, the heating temperature of LaB 6  hot cathode 1 is controlled to increase or decrease as the beam diameter of electron beam 2 is smaller or larger. As a result, the temperature of hot cathode 1 will never be increased unnecessarily in case of low magnification, so that the lifetime of hot cathode 1 can be prolonged. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H02212863-A (JP)
Title: Copying machine
Inventor: MAEDA YASUTAKA
IPC: G03G15/06
Filed: 1989-02-14
Abstract: PURPOSE:To adjust image density with the same change width in both a gradation expression mode and a standard mode by adjusting the image density with the aid of exposure in an ordinary mode and controlling the difference of the surface potential of a photosensitive body from developing bias in a mode where a screen is used. CONSTITUTION:In the standard mode where the screen for controlling gradation characteristic is not put in an exposure optical path for the photosensitive body, the exposure is controlled 29 according to the instruction of an image density adjusting instruction means 22. In the gradation expressing mode where the screen for controlling the gradation characteristic is put in the exposure optical path for the photosensitive body to perform exposure, the difference of the surface potential of the photosensitive body from the developing bias is controlled 30 according to the instruction of the image density adjusting instruction means 22. By thus controlling the difference of the surface potential of the photosensitive body from the developing bias in the gradation expressing mode, the light quantity of a light source lamp in the gradation expressing mode need not be increased perticularly and the image density can be adjusted with the nearly same change width. Then, the screen for controlling the gradation characteristic can be selectively used even in a color copying machine in which the photosensitive body having comparatively low sensitivity is used.
Patent JP-S61197820-A (JP)
Title: Yoke for universal joint
Inventor: AITOKU ATSUSHI
IPC: F16D3/40
Filed: 1985-02-25
Abstract: PURPOSE:To miniaturize the fitting part of a yoke by bending up each yoke part of a plate with bending lines set at a base part as datums, and by forming embossments over the base part with its both sides lacking and the yoke parts in the inward direction. CONSTITUTION:A plate 22 has a base part 23 and yoke parts 24a, 24b, and bending lines 26a, 26b to cross the plate (22)'s line of apsides 25 are set in the base part 23 near the yoke parts 24a, 24b, and the yoke parts 24a, 24b at the both sides are bent up. Stiffening ribs 33a, 33b facing inward are formed inside the yoke 21 to stretch over the base part 28 and the yoke parts 30a 30b. Thus, through small in size, it ensures the strength required for a yoke.
Patent JP-H09232680-A (JP)
Title: Semiconductor light emitting element and its manufacturing method
Inventor: KAMIMURA NOBUYUKI
IPC: H01S5/323
Filed: 1996-02-22
Abstract: PROBLEM TO BE SOLVED: To cut down the threshold value current by a method wherein a ridge or mesa around a laser structured electrode made of an N containing III-V group compound is etched away to be laminated and buried in with the group compound in the smaller effective refractive index in lateral direction than that in a current implanted part. SOLUTION: An n-type A N buffer layer 2, an undoped GaN optical guide layer 4, an undoped Ga0.9 In0.1 N active layer 5, an undoped GaN optical layer 6, etc., are formed on a substrate 1. Next, an undoped AlN layer 8 to form a mask leaving a specific width region for removing the undoped AlN layer by an etching step. Next, an N clad layer 7 is laminated further to form an In electrode 9 and Ni/Au electrode 10. By the formation of the AlN layer 8, the effective refractive index difference in the lateral direction between a current implanted part and a non-implanted part can be increased thereby making feasible the single lateral mode oscillation.
Patent JP-H02213391-A (JP)
Title: Washer-dryer
Inventor: ARAKAWA MASAYUKI
IPC: D06F39/08
Filed: 1989-02-13
Abstract: PURPOSE:To supply rinse water to both the inside and outside of an inner basket in which the laundry is placed to perform an effective rinse of laundry by a method wherein water is gently supplied toward the periphery of the inner basket from a first tap near the periphery, and water is also supplied into the inner basket from a second tap. CONSTITUTION:Washing is carried out in such a manner that an outer drum is filled with water, and an inner basket 33 in which the laundry is put is rotated around the horizontal axial line X-X or a tilted axial line. And dewatering of the laundry is performed in such a way that the inner basket in which washed laundry is held is spun around the vertical axial line Y-Y at a high speed. In rinse operation, water is gently supplied toward the periphery of the inner basket 33 from a first tap 84a near the periphery to wash away the foam adhered on the periphery of the inner basket 33, and at the same time water is supplied into the inner basket 33 from a second tap 85a to wash away the detergent adhered on the laundry, so that the rinse water in the outer drum is continuously replaced with fresh water while rinsing is carried out.
Patent JP-H01210542-A (JP)
Title: Connecting metal fittings for beam or the like
Inventor: TANAKA SUSUMU
IPC: E04B1/58
Filed: 1988-02-17
Abstract: PURPOSE:To absorb an error and improve a fastening force, by arranging angle plates internally and movably in a fixed range in a connector, and by forming screw holes in the angle plates to be fitted to the bolt holes of the connector. CONSTITUTION:On the side wall section of the connector 11 of a polygonal cross-sectional area, bolt holes 23-26 are formed, and in the connector 11, angle plates 27, 28 are internally arranged. The angle plates 27, 28 are bent at the same angle as that of the corner section of the connector 11, and the corner sections of the connector 11 and the corner sections of the angle plates 27, 28 are fitted on each other. Then, the angle plates 27, 28 are arranged movably in a fixed range along the internal wall surface of the connector 11, and on the angle plates 27, 28, screw holes 29, 30 fitted on the bolt holes 23-26 are formed. As a result, without lowering the fastening force of a bolt 31, a great error can be absorbed.
Patent JP-2000234568-A (JP)
Title: Temperature control method and device for intake air
Inventor: UBUKATA KAZUMI
IPC: F02M35/10
Filed: 1999-02-12
Abstract: PROBLEM TO BE SOLVED: To reduce pumping loss under partial load operation, and effectively prevent output reduction under total load operation. SOLUTION: This method for controlling temperature of intake air of an internal combustion engine is composed of varying opening/closing rates of a hot air valve 3 according to temperature variation of intake air containing hot air, outside air, or both of them. The temperature of the intake air is kept within a specified range by controlling the mixture ratio of the hot air and the outside air. The mixture ratio is also controlled based on negative pressure variation in an intake chamber 13 and a negative pressure state specified from control parameters. Under the specified condition, the hot air valve 3 is forcibly opened for introducing the outside air irrespective of temperature of the intake air.
Patent JP-H03240725-A (JP)
Title: Maillard reaction inhibitor
Inventor: MORISAKI MAYUMI
IPC: A61K31/352
Filed: 1990-02-15
Abstract: PURPOSE:To obtain a Maillard reaction inhibitor, containing a flavonoid contained in Scutellariae Radix as a pharmacologically active ingredient and capable of inhibiting the formation itself of an Amadori transition reaction product which is a direct causative substance for forming intermolecular crosslinkages. between protein molecules in the Maillard reaction. CONSTITUTION:Scutellariae Radix is dipped in a mixture solution of water and a lower alcohol, preferably a mixture solution of 80-70wt.% methanol or ethanol based on 20-30wt.% water and warmed (preferably at 40-60 deg.C) to provide an extract solution. To the resultant extract solution, is added water in an amount of >=2 times based thereon. Alternatively, the alcohol is volatilized to reduce the concentration thereof to <=25wt./vol.% and afford an extract composed of a sparingly water-soluble deposited substance. The obtained extract is then contained as a pharmacologically active ingredient in the objective inhibitor. The aforementioned inhibitor is used for treating or preventing various diabetic complications or diseases of the same kind (e.g. atherosclerosis, cerebal angiopathy or senile cataract) caused by aging.
Patent JP-S57150402-A (JP)
Title: Liquid separator
Inventor: EGUCHI TAMIYUKI
IPC: B01D63/02
Filed: 1981-03-10
Abstract: PURPOSE: To facilitate handling and exchanging, to increase the rate of packing of hollow yarn and to withstand long-term high pressure operation by securing both ends of a bundle consisting of many hollow yarn membranes together with a sleeve enclosing the bundle thereby forming a cartridge.  
     CONSTITUTION: A cartridge secured with both ends of a hollow yarn bundle 2 is contained in a cartridge containing case 1 provided with outlets and inlets 11, 12 for the 1st and 2nd fluids. The case 1 and the cartridge are sealed by sealants 5, 6, and the force exerted upon this is transmitted from only the secured parts 4. The cartridge is fixed to the case 1 by means of snap ring 10 and gives virtually no load upon a sleeve 3. Since there is no need for core bars for the purpose of sealing both end parts and a tough sleeve, the device maintains the same high rate of packing of the hollow without decreasing and provides a high membrane area per volume. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S52117616-A (JP)
Title: Radio-sensitive composition
Inventor: MIYAMURA MASATAKA
IPC: C08L23/00
Filed: 1976-03-29
Abstract: PURPOSE: To provide a radio-sensitive composition comprising a specific metalloxene(derivative), which is used in posi-type micro-pattern forming materail for production of IC, etc. to increase its sensitivity to radio active rays and improve gamma-value in characteristic curves. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S643023-A (JP)
Title: Production of glass
Inventor: KAYANE KAZUO
IPC: C01B33/158
Filed: 1987-02-18
Abstract: PURPOSE:To produce glass of high quality free from breakage, warpage, and cracks by drying and sintering a wet gel formed by the sol-gel method, from a sol solution containing metal alkoxides as major starting materials to eliminate water and alcohol uniformly. CONSTITUTION:For example, a mixed solution of water, hydrochloric acid and alcohol is poured into a commercially available ethyl silicate, stirred for 1-2hr in a dispersing device to effect complete hydrolysis. The resultant sol solution mainly containing metal alkoxides is gradually dried in a drier at 60-80 deg.C for about 10 days under control of heating temperature, air humidity and air flow rate to form a moist gel of high quality 1. The gel is transferred into an air-permeable vessel 2 of an equivalent size, e.g., made of porous glass or honeycomb ceramics, when needed, the vessel is covered with a lid 3 to close tightly and subjected to drying and sintering as the temperature is gradually raised up to 1,100 deg.C.
Patent JP-S61196066-A (JP)
Inventor: HAYASHI AKIRA
IPC: E02D27/01
Filed: 1985-02-22
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-H05238706-A (JP)
Title: Production of sulfuric acid from dilute hydrogen sulfide
Inventor: IZUMI JUN
IPC: C01B17/76
Filed: 1992-02-21
Abstract: PURPOSE:To improve production efficiency by alternately applying the selective adsorption of an H2S-contg. gas and the vacuum reducing concentration by countercurrent contact with a purge gas to recover H2S, burning the H2S to SO2, then catalytically oxidizing the SO2 to SO3 and bringing the SO3 into contact with water. CONSTITUTION:A gaseous mixture 1 contg. H2S is supplied to the adsorption tower 4a between the adsorption towers 4a and 4b packed with an adsorbent 5 such as synthesized phosphate-treated gamma-alumina, untreated-alumina or silicalite. The H2S is selectively adsorbed by the adsorbent 5, and the unadsorbed gaseous component is discharged from a passage. After the adsorption of H2S is finished in the tower 4a, a part of the unadsorbed gaseous component is countercurrently passed through the tower 4b through a pressure reducing valve 10 and purged, and the gaseous HS reduced in volume and concentrated is recovered. The recovered gas is sent to a combustion chamber 13, mixed with an auxiliary fuel 14, burned and converted to SO2, and the gas is passed through a passage 15, cooled and then supplied to a reactor 18 packed with an oxidation catalyst. Here, SO2 is catalytically oxidized to SO3 in the reactor, the SO2-contg. gas is cooled and then supplied to a water absorption tower 20 to absorb SO3 in the circulating water, and dil. sulfuric acid is obtained at a high recovery rate.
Patent JP-H07223481-A (JP)
Title: Loading deck lift
Inventor: KAMEGAWA MASAYASU
IPC: B60P1/46
Filed: 1994-02-09
Abstract: PURPOSE:To prevent right and left elevating members from falling in the event that connecting and hanging members such as wire are cut by connecting the elevating members together via an interlock means in such a manner that they can be raised and lowered in synchronization, and coupling either the right or left elevating member to a lift drive so that it can be raised and lowered by the lift drive. CONSTITUTION:This loading deck lift is provided with right and left elevating members 6, 7 that rise and fall while serving as guides to columns, with a loading deck 10 disposed between the elevating members 6, 7. The piston portion 12 of a hydraulic cylinder 11 serving as a lift drive is pinned to the connecting member 8 of one of the lift members (6) at its end, and the cylinder portion 14 of the hydraulic cylinder 11 is pinned to the upper end of each column at its end. The lift is provided with an interlock means 19 that is made endless with wire 23 passed through pulleys 21, 22 and secured to the upper end of the elevating member 8 and wire 27 passed through pulleys 25, 26 and secured to the upper end of the elevating member 6. The elevating members are made to rise and fall synchronously by the interlock means 19 so as to prevent the loading deck 10 from falling off.
Patent JP-H06268330-A (JP)
Title: Vcsel with horizontal index guide
Inventor: DONARUDO II ATSUKURII
IPC: H01S5/183
Filed: 1994-02-09
Abstract: PURPOSE: To realize a more efficient vertical cavity surface emitting laser by suppressing a lasing or optical mode to a minimum dimension mode, and suppressing current to a volume of a vertical cavity surface emitting laser for lasing. CONSTITUTION: A mesa 13 is formed on an upper surface 11 of a substrate 10. A first stack 14 of a reflector or mirror of a vertical cavity surface emitting laser 10 is formed by covering with alternate layers of doped aluminum and gallium arsenide and the aluminum arsenide. The stack 14 is epitaxially covered with a first clad layer 16 to form a first main surface of an active region 15. The layer 16 is epitaxially covered with an active layer 17 made of one GaAs quantum well. The layer 17 is covered with a second clad layer 18 having the same aluminum gallium arsenide composition and thickness as the layer 16. A surface of the layer 18 of the region 15 is covered with a second stack 19 of the reflector or mirror.
Patent JP-S55127503-A (JP)
Title: Reinforcing tube for optical fiber
Inventor: HIRATSUKA TOSHIO
IPC: H01B7/18
Filed: 1979-03-26
Abstract: PURPOSE: To enable only the required portions to be readily reinforced by constituting the reinforcing tube that reinforcing members composed of material whose elongation by tension is smaller than that of glass with arraying parallel to the axis and linearly along the outside circumference of an optical fiber.  
     CONSTITUTION: Plural strands of, e.g., Kepler R fiber bundles, of elongation smaller than that of glass, as reinforcing members 2, are evenly and longitudinally linearly disposed in the circumferential direction among nylon fiber bundles 1 to make an interwoven tubular braid body, thence it is applied with polyvinyl chloride coating 3, whereby the optical fiber reinforcing tube is made. Since the reinforcing members 2 are perfectly interwoven in the braid body composed of the nylon fiber bundles 1, they do not hinder the insertion of optical fibers and have the effect of providing perfect protection in elongation and strength against tensile stress. Hence, it is possible to readily reinforce only the required portions of the optical fibers. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S60179812-A (JP)
Title: Rotary working device sensitive to temperature
Inventor: SUZUKI YUUICHI
IPC: F03G1/00
Filed: 1984-02-28
Abstract: PURPOSE:To obtain large rotational force and to attain low cost by holding the engaging state of a stopper by bending a shape memory alloy member 9 when the temperature of the member is less than a deformation temperature,and at a temperature more than the deformation temperature, disengaging the stopper by a force recovering the member to its memorized shape. CONSTITUTION:When the temperature of the shape memory alloy member 9 is less than the deformation temperature, a hooking part 15 of the stopper 7 is engaged with the leading end of an arm 13 to stop the rotation of a rotor 3. Since force returning the member 9 to the memorized shape is weak, the member is kept at the bent state. When the temperature exceeds the deformaion temperature, the member 9 pushes the hook part side of the stopper 7 strongly by the force returning the member 9 to the memorized shape, so that the hook part side of the stopper 7 is deformed as shown by a dotted line and the hook part 15 is disengaged from the leading end of the arm 13. Therefore, the rotor 3 is rotated in the arrow B direction by twisting moment accumulated on a coil spring 5. Since the repulsion turning force of the coil spring 5 is used as it is for the turning force of the rotor 3, the turning force can be increased sufficiently.