baber/WOPTO huggingface dataset:
Patent JP-2001050782-A (JP)
Title: Optical fiber sensor
Inventor: KURII MASATO
IPC: E02B3/04
Filed: 1999-08-16
Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber sensor capable of monitoring efficiently all the time scouring for a riverside and a coast, various kinds of levee all bodies and the like such as a river embankment and a tide embankment. SOLUTION: Split bodies 13 in each of which a remaining length 12a of an optical fiber 12 is curvedly stored between a pair flexible tape-like or sheet- like laminate material to be sandwiched from its both sides so as to hermetically sealed water-tightly are continuously arranged plurally in series in the same optical fiber 12, and the optical fiber 12 is led out outsides from the respective split bodies 13 positioned in the both ends. The optical fiber 12 excellent in excecutability, conveyability, and connectability to an optical path for monitoring is provided thereby.
Patent JP-H0871631-A (JP)
Title: Manufacture of aluminum tube for driving shaft
Inventor: MOCHIZUKI HIROYUKI
IPC: C22C1/10
Filed: 1994-08-31
Abstract: PURPOSE: To obtain an aluminum-made tube which is used for automobile driving shaft and the like and which can be formed in a desired shape. CONSTITUTION: A particle-dispersed composite material, in which aluminum oxide particles are dispersed for 15 to 25 volume % in an Al-Mg-Si system alloy, is extruded into a cylindrical tube stock, and treated for sol. heat treatment. Then, the tube stock is reduced in diameter with the rate of change for 5% or less in the cross sectional area basing the extruded cylindrical shape as a reference and, after that, an age treatment is applied. When the tube stock is reduced in diameter with the rate of change for 5% or less in the cross sectional area, the lowering of the Young's modulus is suppressed, and a tube with a required shape is produced from the particle-dispersed composite material that is superior in mechanical strength.
Patent JP-H0871417-A (JP)
Title: Catalytic composition for fluidized catalytic cracking of heavy oil
Inventor: SHIBAZAKI MASAHITO
IPC: B01J27/053
Filed: 1994-08-31
Abstract: PURPOSE: To obtain a catalytic compsn minimized in coke deposition time of use and giving a high yield of intermediate fraction. CONSTITUTION: This catalytic compsn. contains silica-alumina having a structure formed by sticking and bonding silica to the surface of alumina as nuclei as a catalytic component. The silica-alumina has 120-200m<2> /g specific surface area and 0.40-0.65mmol total amt. of acids including 35-70% strong acid.
Patent JP-H1074939-A (JP)
Title: Power mosfet
Inventor: OKUTO TAKASHI
IPC: H01L29/423
Filed: 1996-08-30
Abstract: PROBLEM TO BE SOLVED: To provide a power MOSFET which can suppress the concentration of electric field on the bottom surface of a trench and increase a breakdown strength between a drain and a source. SOLUTION: An n-type epitaxial layer 2 is formed on one main, surface of an n<+> -type single crystal silicon substrate 1, and a p-type well area 3 is formed on one main surface thereof, and further an n-type source area 4 is formed as to be included within the p-type well area 3. In addition, a trench 5 is formed in such a state that it penetrates the n<+> -type source area 4 and p-type well area 3 and reaches the n-type epitaxial layer 2, and a V-shaped groove 7 is formed on the bottom thereof. Then a gate oxide film 8 is formed on the inner side surface of the trench 5 and V-shaped groove 7, and a polysilicon layer 9 is formed as to fill the trench 5 and V-shaped groove 7.  In addition, a silicon oxide film 10 is formed on one main surface of the n-type epitaxial layer 2, and a source electrode 11 and a gate electrode 12 are formed in a manner that they may be connected electrically to the n<+> -type source area 4 and polysilicon layer 9 respectively, and a drain electrode 13 is formed on the two main surfaces of the substrate 1.
Patent JP-H0291218-A (JP)
Title: Polyester yarn having ramie-like feeling and production thereof
Inventor: KAWAMOTO MASAO
IPC: D06M101/16
Filed: 1988-09-13
Abstract: PURPOSE:To provide the subject yarn having a ramie-like feeling and a good touch by heterogeneously mixing a specific ethylene-vinyl acetate copolymer saponified product with a thermoplastic polyester resin just before spun, extruding from nozzles and subsequently subjecting the spun yarn to an alkali weight reduction treatment. CONSTITUTION:(A) An ethylene-vinyl acetate copolymer saponified product having an ethylene content of 30-70mol% and a saponification degree of >=95% and (B) a thermoplastic polyester resin comprising mainly polyethylene terephthalate or polybutylene terephthalate, respectively, are separately melted and extruded into the feeding holes 2 and 3 of a feeding plate 1. Two the components are heterogeneously mixed with a static mixer 11 disposed in mixing plates 4 and 5 just before spun in such a degree as the layer states of two the components remain in some extents within an A:B weight ratio range of 5:95-40:60wt.%, and extruded from the spinning nozzles of a spinneret 10 through a filter 8 and a flow-straightener 9 into a yarn, followed by subjecting the prepared yarn to an alkali weight reduction treatment to provide the objective yarn the cross sections of whose single filaments have different random surface uneven shapes, respectively, and whose single filaments are randomly stuck therebetween.
Patent JP-S6383754-A (JP)
Title: Developing device
Inventor: OGAWA YASUHIRO
IPC: G03G15/09
Filed: 1986-09-29
Abstract: PURPOSE:To adjust the density of toner by providing a net-like member having plural openings with opening diameters larger than the size of a magnetic carrier particle and that of a toner particle, both of which are provided so as to be burred in a developer. CONSTITUTION:In order to develop an electrostatic latent image, the toner 92 on a development sleeve 2 is consumed. Then, according to the quantity that the toner 92 is consumed, pressure applying to the developer 9 in a part surrounded by the development sleeve 2, a blade 4 and the net-like member 5 drops. With the toner 92 electrostatically attracted, the magnetic carrier 91 in the toner developer with high toner density passes through the opening of the net-like member 5 due to the attraction, that is, the magnetism of a magnetic roller 3 in the development sleeve 2, and supplied to the side of the development sleeve 2. The net-like member 5 is provided in an area that the magnetic filed of the magnetic roller 3 affects, and in the burying position in the developer 9. By keeping constant pressure applying to the developer 9 on the development sleeve 2, the toner 92 is supplied according to the quantity as if found consumed together with the movement of the magnetic carrier 91, and the density of the toner is maintained appropriately.
Patent JP-S60122141-A (JP)
Title: Method and device for manufacturing information recording disk
Inventor: HIRANO SHIZUO
IPC: B29C43/56
Filed: 1983-12-06
Abstract: PURPOSE:To permit manufacturing of a disk with a thin layer of resin by reducing, to a certain degree of vacuum, the pressure of a resin layer between a stamper and a transparent substrate. CONSTITUTION:During the process of transfer an upper housing 21 descends, forming a hermetically closed chamber between the upper housing and the lower housing 20. At this time a vacuum pad 37 makes contact with the upper surface of a substrate 43 and sticks fast to it by suction with a negative pressure of -650mm.Hg (approx.) of vacuum. later the degree of vacuum of the hermetically closed chamber is reduced to a negative pressure of -500mm.Hg (approx.). Under such circumstances, a difference in pressure of 150mm.Hg (approx.) occurs between the inside of vacuum pads 37 and that of the hermetically closed chamber. Thus, within the hermetically closed chamber where the degree of the vacuum was reduced to a negative pressure of -500mm.Hg, by gradually lowering the substrate 43 against the stamper 15 from the inner periphery to the outer periphery, the engulfing of bubbles into the inside of photopolymer may be decreased.
Patent JP-H0783036-A (JP)
Title: Exhaust emission control device for internal combustion engine
Inventor: KANETOSHI KAZUHIKO
IPC: F01N3/20
Filed: 1993-09-17
Abstract: PURPOSE:To elongate life of a catalyst by preventing thermal deterioration of a sub-catalytic converter owing to heat conduction from an internal combustion engine. CONSTITUTION:An air supply mechanism 9 is arranged on an upstream side of a bypass passage 6 which connects an exhaust manifold 2 to a main catalytic converter 5. When a temperature of a sub-catalyst which is detected by a sub- catalyst temperature detection sensor 12 reaches a reference value, cooling air is supplied into the bypass passage 6 from the air supply mechanism 9. Thus a sub-catalytic converter 7 is cooled.
Patent JP-H0681894-A (JP)
Title: Shock absorber for vacuum vessel
Inventor: TAKAMA TOSHIHIDE
IPC: F16F15/04
Filed: 1992-08-31
Abstract: PURPOSE:To facilitate designing of regidity (plate thickness) of a vacuum vessel and rigidity of a foundation. CONSTITUTION:An anchor frame 21 is suspended to be opposed to a vacuum vessel 1 in a position symmetrical to a position of mounting a pipe 2 of using a vacuum bellows 3, and a pipe 23 of interposing the same vacuum bellows 22 to the vacuum bellows 3 is mounted between this anchor frame 21 and the symmetrical position of the vacuum vessel 1. Accordingly, thrust F, generated by the vacuum bellows 3 to act in the vacuum vessel 1 at vacuum operating time, is supported by the anchor frame 21 through the pipe 23 of interposing the vacuum bellows 22 provided in the symmetrical position, to make zero overturning moment M (=F.H) of the vacuum vessel 1. Thus in the case of designing rigidity of the vacuum vessel 1 and foundation 4, rigidity against an external pressure and mounting load is only required to be studied, and the rigidity can be easily designed by an ordinary degree.
Patent JP-H0878689-A (JP)
Title: Semiconductor circuit
Inventor: YAMAZAKI SHUNPEI
IPC: H01L21/84
Filed: 1994-08-31
Abstract: PURPOSE: To obtain a low leakage current characteristic required for pixel elements and a high mobility characteristic required for peripheral drive circuits, by forming crystalline silicon TFTs capable of high-speed operation and amorphous silicon TFTs having a low OFF-current characteristic on the same substrate. CONSTITUTION: Selective crystalization of an amorphous silicon film 12 is performed by applying a laser beam to the region where an extremely thin silicon film 13 containing nickel has been formed of the amorphous silicon film 12. Metal elements of a density of 1×10<16> -5μ10<19> cm<-3> are added to the active region of a thin-film transistor to help the crystalization of silicon. On the occasion of this crystalization a large number of monodomain regions 121 and 122 are formed. Since any metal elements are not introduced into an amorphous region 123, and a laser beam is not applied either, it is not crystalized, and remains in an amorphous state. Accordingly, it becomes possible to form crystalline silicon TFTs capable of high-speed operation and amorphous silicon TFTs having a low OFF-current characteristic on the same substrate.
Patent JP-2000066912-A (JP)
Title: Method for changing data of triple fault tolerant system
Inventor: YAMAMOTO SHUZO
IPC: G06F11/18
Filed: 1998-08-17
Abstract: PROBLEM TO BE SOLVED: To realize a multiple system data changing method capable of making the good use of the merits of a multiple system without losing the redundancy of plant control and delaying the detection/generation of an alarm. SOLUTION: In this triple fault tolerant system, 1st to 3rd units 10, 20, 30 are connected side by side and after plant data for respective systems which are periodically inputted from the I/O parts 15, 25, 35 of the respective units 10, 20, 30 are operated by respective control operation parts 13, 23, 33, the operation results of the respective systems are processed by a majority and the processed results are periodically outputted to the operation systems of the plant.  In this case, the I/O parts 15, 25, 35 of the 1st to 3rd units 10, 20, 30 are mutually connected by a data changing synchronizing signal line 40 and after receiving changed data from an external man-machine interface 50, each of the units 10, 20, 30 outputs a synchronizing signal to all the units 10, 20, 30 through the synchronizing signal line 40 to synchronize all the units 10, 20, 30 and to change control data based on the changed data.
Patent JP-H09111428-A (JP)
Title: Production of superplastic aluminum alloy
Inventor: KEBIN AARU BURAUN
IPC: C22F1/053
Filed: 1996-08-30
Abstract: PROBLEM TO BE SOLVED: To produce an aluminum alloy having superplasticity without executing expensive heat treatment and mechanical treatment by executing hot rolling at a specified temp. and allowing the temp. range of the hot rolling finishing temp. and the cold working rate to lie in specified relation.  
     SOLUTION: Heating is executed in the temp. range of about 750 to 1,100°F for about 1 to 24hr to homogenize an alloy. At first, it is hot-rolled in the temp. range of about 700 to 1,000°F, and the finishing temp. is regulated to about 650 to 70°F. The alloy is held in the temp. range of about 650 to 850°F for at least 2hr. The range of the hot finishing temp. and the cold working ratio are regulated to the range prescribed by the line connecting the points A, B, C and D: the point A, 350°F-10%, the point B; 600°F-99%, the point C; 70°F-10% and the point D; 70°F-10%. The alloy subjected to cold working is annealed. As the compsn. of the aluminum alloy, the following one is preferable: by weight, approximately, 4 to 4.9% Mg, 0.4 to 1% Mn, ≤0.25% Cr, ≤0.4% Fe, ≤0.4% Si, and the balance substantial Al. 
     COPYRIGHT: (C)1997,JPO
Patent JP-H0783415-A (JP)
Title: Radiant tube
Inventor: WAKE KOICHI
IPC: F23C3/00
Filed: 1993-09-17
Abstract: PURPOSE:To alleviate a load of a W-shaped radiant tube and to improve its life by connecting a burner to an opening provided at an outer surface of a second bend of the tube. CONSTITUTION:Support fittings 8 mounted at first and third bends 2, 4 of a radiant tube are respectively supported by bearers 7 disposed at a furnace body 5. A first linear tube 9 coupled to the bend 2 and the other end of a fourth linear tube 12 coupled to the bend 4 protrude out of a furnace through the body 5. An opening of a fixed size is provided at an outer surface of a second bend 3, and a pipe 13 engaged at one side and protruding at the other out of the furnace is disposed in the opening. A flange 14 is installed at the outer protrusion of the furnace of the pipe 13, and fixed to the body 5. A burner 6 is connected to the flange 14. Combustion gas burned by the burner is split by the second bend to the first and third bends to be fed, and hence burning loads of the tubes are alleviated.
Patent JP-S61111067-A (JP)
Title: Recording device
Inventor: FUKUSHIMA HISASHI
IPC: B41J2/07
Filed: 1984-11-05
Abstract: PURPOSE:To eliminate such as the black streaks at a boundary part and thereby to improve the picture quality by dividing the record range into matrix divisions and by so forming the matrix units as to be selectively driven so that the boundary part of the neighboring scanning record areas become completementary to each other. CONSTITUTION:On a recording paper 1, an ink jet nozzle 4 of array length (b) is transferred for a distance (a) in an (x) direction, and then transferred for a distance (c) in a (y) direction shown by an arrow 12. After stopping, the nozzle 4 is transferred again to the (x) direction and the movement is iterated likewise. And the input data is applied dither matrix; m in (y) direction and (n) in (x) direction. When the pseudo half tone expression is performed, the recording-head transferring distance (c) is made shorter than the nozzle length (b) by an amount of integer times of the matrix size (1/m) in (y) direction. At this time, as shown by the slant lines, the record ranges immediately prior and immediately posterior each other overlap. As to the matrices of the overlapped recording ranges, per-matrix selection is done between the the record ranges prior and posterior. That is, within the range where the first scanning and the second scanning overlap each other, either one of the matrices of the scannings is alternately selected so that the recording become complementary.
Patent JP-H0396685-A (JP)
Title: Fluid compressor
Inventor: SONE YOSHIKUNI
IPC: F04C18/107
Filed: 1989-09-08
Abstract: PURPOSE:To prevent the gas leakage by connecting at least a part of a blade to a rotary body, in a fluid compressor made by providing eccentrically the rotary body to which a spiral blade is furnished, in a tube-form cylinder. CONSTITUTION:In a cylinder 3 furnishing the suction side 4 and the release side 5, and a spiral groove 6 formed to have a pitch smaller gradually from the suction side 4 to the release side 5 on the inner surface, a piston 7 as a columnar rotary body is inserted rotatable eccentrically. At the periphery of the piston 7, a blade 8 formed in a spiral form with a material of an adequate flexibility, extending from the suction side 4 to the release side 5 of the cylinder 3 is provided. In such a fluid compressor, a part of the inner surface side of the end 15 of the blade 8 at the release side 5 is inserted to the inside of the piston 7, and the inserting part 16 is connected to the piston by a fixing pin 17.
Patent JP-H0891646-A (JP)
Title: Thermoplastic resin film roll and manufacture thereof
Inventor: NISHIGAKI YASUO
IPC: B65H23/18
Filed: 1994-09-27
Abstract: PURPOSE: To provide the thermoplastic resin film roll, which can avoid the generation of wrinkles due to the temperature shock. CONSTITUTION: A thermoplastic resin film at 10μm or less of film thickness and at 0.012μm or less of film surface roughness (SRa) is wound up so as to form a film roll, and film interlayer porosity of this thermoplastic resin film roll is set at 1.5-2.8%.
Patent JP-S60124580-A (JP)
Title: Agricultural tractor
Inventor: OOTSUKI HARUKI
IPC: B62D49/00
Filed: 1983-12-08
Abstract: PURPOSE:To reduce the size by providing a bumper above front wheel to form an engine room from upper to lower sections while a bonnet rearwardly from the upper end of light provided immediately above the leading edge section of bumpper. CONSTITUTION:The tractor body 1 is provided with a pair of front and rear wheels 2, 3 while a floor step 4 is provided between them 2, 3. A bumper 9 is formed above front wheel 2 while covering the front wheel 2 and projecting to the side. The engine room 10 is formed from upper to lower sections of bumper 9. A headlight 11 is arranged immediately above the leading edge section of bumper 9 while a bonnet 12 is formed rearward from the upper portion of headlight 11 while rising linearly. Consequently, the entire body 1 can be reduced resulting in improvement of front view and maneuverability.
Patent JP-H04278534-A (JP)
Title: Element separation method of semiconductor device
Inventor: HAN TENSHIYU
IPC: H01L21/762
Filed: 1991-09-11
Abstract: PURPOSE: To minimize a bird's beak formed from an element separation area to an element formation area, by preventing flank diffusion of an oxide film by a 2nd silicon nitride film formed in a field area when a field oxide film is grown. CONSTITUTION: After a pad oxide film 12 is grown on a semiconductor substrate 11, a polysilicon film 13 and a 1st silicon nitride film 14 are formed. To limit an active area, the 1st silicon nitride film 14 in patterned. Then, a 2nd silicon nitride film 15 and an oxide film 16 which are formed over the entire surface are etched anisotropically to form an oxide film spacer 16a and a nitride film spacer 15a. Those are used as a mask for the ion injection of impurities, forming a channel stop area 17. Then, the oxide film spacer 16a is removed and a field oxide film 18 is grown. At this time, the L-shaped nitride film spacer 15a prevents the flank diffusion by the oxide film at the time of the field oxide film growth, so the spread of the bird's beak is suppressed.
Patent JP-S6476943-A (JP)
Title: Superconducting material
Inventor: NATORI EIJI
IPC: C04B35/00
Filed: 1987-09-16
Abstract: PURPOSE:To provide a superconducting material having critical temperature near normal temperature with few limitations of the place to be used, containing specific metal element, rare earth element, Ca and Cu. CONSTITUTION:(1) nitrate(s) of A-element(s) (A is at least one kind of element selected from Sc, Y, La, Nd, Sm, Eu, Cd, Dy, Ho, Er, Yd and Lu), (2) Ca(OH)2, (3) nitrate(s) of M-elements (M is Ti, Zr, Hf or combination thereof) and (4) copper acetate are mixed followed by calcination and grinding to carry out forming followed by calcination in an oxygen-contg. atmosphere, thus obtaining the objective superconducting material of formula (0.3<=x<=0.8; 0.05<=y<=0.4).
Patent JP-H0393525-A (JP)
Title: Polyester film for lamination of metal
Inventor: MORI KUNIHARU
IPC: B29L7/00
Filed: 1989-09-06
Abstract: PURPOSE:To enhance the stretchability and impact resistance of a film and to prevent the generation of a crack at the time of drawing processing after the film is laminated to a steel plate by lowering the density and degree of in-plane orientation of a biaxially stretched polyester film than certain levels, that is, by suppressing stretching/orientation crystallization. CONSTITUTION:In a biaxially oriented polyester film, density is below 385g/cm<3> and the degree of in-plane orientation (AO) is below 0.130. Herein, AO=(nx+ny)/2-nz (wherein nx is a refractive index in a longitudinal direction, ny is a refractive index in a lateral direction and nz is a refractive index in a thickness direction). As a stretching method, both of simultaneous stretching and sequential stretching may be used and, further, multistage stretching may be also adapted. For example, in the case of manufacturing due to a sequential biaxial stretching method, polyester is extruded at temp. equal to or higher than the m.p. thereof and quenched to obtain a non-stretched film. At this time, the constitution of the non-stretched film may be a single layer or a multilayer.
Patent JP-S59121830-A (JP)
Title: Epitaxial wafer
Inventor: KOBASHI KOUJI
IPC: H01L21/208
Filed: 1982-12-27
Abstract: PURPOSE:To obtain a GaAs epitaxial wafer suitable for manufacture of infrared LED of higher efficiency and higher output by forming the wafer with an N type GaAs epitaxial layer doped with specified Si formed on the surface of an N type GaAs single crystal substrate, a P type GaAs epitaxial layer and a specified P type Ga1-xAlxAs mixed crystal. CONSTITUTION:The epitaxial wafer consists of an N type GaAs single crystal substrate, an N type GaAs epitaxial layer of 20-100mum thick formed on said substrate doped with Si whose carrier concentration is 1.0X10<17>-2.0X10<18>cm<-3>, a P type GaAs epitaxial layer of 10-80mum thick formed on said N type GaAs epitaxial layer, doped with Si whose carrier concentration is 1.0X10<17>-5.0X 10<18>cm<-3> and a P type Ga1-xAlxAs mixed crystal of 20-90mum thick formed on said P type GaAs epitaxial layer, whose carrier concentration is 1.0X10<17>-5.0X 10<18>cm<-3>, and comprises a epitaxial layer whose rate of mixed crystal (x) is 0.03<=x<=0.8 within a region at least 2mum distance from the interface of the P type GaAs epitaxial layer.