baber/WOPTO huggingface dataset:
Patent JP-S6425510-A (JP)
Title: Magnet device for mri
Inventor: MAEDA TOMOHISA
IPC: A61B10/00
Filed: 1987-07-22
Abstract: PURPOSE:To obtain an image characterized by excellent linearily and no distortion, by dividing a coil material into a plurality of planer parts on the facing surfaces of magnetic poles, forming coils in this way, setting the ampere turns of the divided coils at mutually related values, thereby making the gradient of the slanted magnetic field in each direction to approach a constant value. CONSTITUTION:In a slanted magnetic field in the direction Y, a slanted magnetic field generating part 40 is composed of coils 11a, 12a, 11b and 12b, which are divided into two parts in a concentric pattern. Ampere turns IN1 and IN2 of these coils 11a, 12a, 11b and 12b are set at the specified related values. In slanted magnetic fields in the direction X and in the direction Z, a slanted magnetic field generating part 40 is composed of first straight line parts 17 and 18, second straight line parts 19 and 20 and returning line parts 21 and 22, which are obtained by dividing parallel 4-line parts. Ampere turns IN1 and IN2 of these first straight line parts 17 and 18 and the second straight line parts 19 and 20 are set at specified related values. Thus the space uniformity of the gradient in each magnetic field can be enhanced. Therefore, the gradient becomes a very small value. The values become approximately equal for the directions. An image characterized by excellent linearily and less distortion is obtained.
Patent JP-2001023310-A (JP)
Title: Defect registering method, defect map recording medium and disk device
Inventor: ANDO HARUO
IPC: G06F11/00
Filed: 1999-06-29
Abstract: PROBLEM TO BE SOLVED: To make it possible to enhance throughput of a recording device at the time of accessing a data recording medium by discriminating a defect sector train consisting of plural defect sectors which satisfy prescribed conditions about a partial region in which an address is consecutive and is arranged or the corresponding alternate sector, and registering with the front address and a sector length in the defect map. SOLUTION: This disk device forms the primary defect map PDM (a) which individually registers physical block addresses D.ABA, of initial defect sectors. Subsequently, the disk device discriminates the defect sector train in which D.ABA is consecutive from the PDM (a) and which consists of the plural initial defect sectors existing in the same track, and forms a PDM (b) in which the defect sector train is registered with a front physical block address D.ABA.ST and a defect sector length D.LE in block. Subsequently, the D.ABA.ST is transformed into a pseudological block address F.LBA, and a PDM (c) is formed.
Patent JP-H0350028-A (JP)
Title: Driving torque distribution device for vehicle
Inventor: YOSHIDA HIROAKI
IPC: F16H48/27
Filed: 1989-07-14
Abstract: PURPOSE:To control driving torque transmission to right and left wheels with a relatively simple construction by constituting the device so that a reversible hydraulic motor and a differential device are combined each other for use, the rotating direction of the hydraulic motor is controlled with a control valve, and the control valve is controlled by a control means. CONSTITUTION:At receiving driving force from an engine side, a differential case 3 is rotated by the driving force transmitted from a shaft 9 to the ring gear 2 of a differential device 1, and the driving torque is distributed to right and left side gears 7,8 (output shafts 5,6) through pinion gears 4 and transmitted to right and left wheels. The differential case 3 and the output shaft 5 are relatively rotated by rotation output of a reversible hydraulic motor 11 provided between the differential case 3 and the left output shaft 5. A hydraulic pump 22 is driven with the shaft 9 to suck and discharge oil in a reservoir 23. A control valve 26 controls the direction of pressure oil fed to the motor 11 to control rotating direction of the motor 11, and the valve 26 is controlled by a control means.
Patent JP-S5973394-A (JP)
Title: Device for ceasig ship signal and engine
Inventor: NAKAJIMA FUJIYA
IPC: B63B45/00
Filed: 1982-10-19
Abstract: PURPOSE:To hold a ship close to a position where a person falls, by providing, on a step arranged on a deck below a steering wheel, a normally-open and actively-close way which is actuated in association with getting-on and off of a person, and as well by ceasing the alarm and the engine when this normally- open and actively-close way is closed. CONSTITUTION:Upon steering, a person manipulates a steering handle 25, standing on a step 5 so that the step 5 is moved downward, and therefore, a normally-open and actively-open way 4 does not operate. Accordingly, a signal lamp 7 and a buzzer 8 are not enerized, and as well, an engine 22 does not come to a stop since a solonid selector valve 22 is not energized. When, for example, a person falls onto the sea durig steering, the step is moved upward to actuate the normally-open and actively-close way 4. Accordingly, A time-limit operation contact 17 is energized so that the signal lamp 7 and the buzzer 8 are activated a few minutes later. Further, the solenoid valve 24 is actuated to cut off fuel, and therefore, the engine 22 comes to a stop. Thereby, the advance of the ship is ceased, and the ship is held to be close to the position where the person falls.
Patent JP-H1024611-A (JP)
Title: Liquid discharging head, head cartridge and liquid discharging device
Inventor: KUDO KIYOMITSU
IPC: B41J2/05
Filed: 1996-07-12
Abstract: PROBLEM TO BE SOLVED: To obtain higher discharging efficiency and discharging force by orienting the pressure transmission based on the bubble generation to the discharging opening side. SOLUTION: An element substrate 1 is provided with a heat generating member 2 for generating bubbles in a liquid in a liquid channel 10 by applying heat to the liquid. A movable member 31 is provided facing to the heat generating member 2. The movable member 31 has a free end 32 at a discharging opening 18 side so that it can be displaced away from the heat generating member 2 according to the pressure based on the bubble generation. A recessed part 60 elongating from the free end 32 to a flucrum 33 side is provided at the surface of the movable member 31 facing to the heat generating member 2.
Patent JP-S6245912-A (JP)
Title: Oil feeding device for hydraulic tappet of internal combustion engine
Inventor: SONODA TOSHIYA
IPC: F01M1/06
Filed: 1985-08-21
Abstract: PURPOSE:To prevent a syphon phenomenon by air sucked into an air vent route, when an engine stops, so as to get a certain checking function, by connecting the air vent route to the upper part of a flow-checking route which rises from an inlet of a distributor. CONSTITUTION:When an engine is started, oil is sent with pressure into a feed route 32 by the operation of an oil pump 31, and after that, the flow of the oil is divided into a lubricating oil route 34 and a distributor route 28 by an orifice 33, at the proper rate of division. Then, a part of the oil divided into the distributor route 28, flows into an air vent route 38 through an orifice 39, and is sent to a lubricating oil route 23. On the other hand, when the engine and the oil pump 31 are stopped, it is prevented that the oil in the distributor 28 is returned toward the oil pump 31-side, by a flow-checking route 30 which rises from the distributor 28. Moreover, as air in a tappet chamber 14 is sucked into a concave part 37 through the lubricating oil route 23 and the air vent route 38, according to the downward flow of the oil in the feed route 32, a syphon phenomenon in the flow-checking route 30 can be suppressed.
Patent JP-S5974520-A (JP)
Title: Observing method of optical fiber end face
Inventor: USUI HIROICHI
IPC: G02B6/24
Filed: 1982-10-21
Abstract: PURPOSE:To observe simultaneously both end faces of optical fibers facing each other, by forming mirror faces in the end part of a butting rod in two directions facing each other at about 45 deg. to the axis of the butting rod. CONSTITUTION:Optical fibers 1 and 1' are brought into contact with both side faces of a butting rod 9 where mirror faces 10 and 10' are formed in two directions facing each other at 45 deg. and optical fibers 1 and 1' are positioned. Thereafter, the butting rod 9 is allowed to fall, and mirror faces 10 and 10' are placed between end faces of optical fibers 1 and 1'. When they are observed by a microscope 4 provided above the butting rod 9, side faces 12 and 12' of optical fibers 1 and 1' and images 11 and 11' of end faces of optical fibers 1 and 1' projected to mirror faces 10 and 10' are observed in the visual field. In this case, lengths l and l' from the center of the visual field to images 11 and 11' are measured and are compared with each other to discriminate whether they are equal to each other, thereby confirming whether optical fibers 1 and 1' are shifted axially or not.
Patent JP-H1130199-A (JP)
Title: Centrifugal compressor
Inventor: NOSUMI TADASHI
IPC: F04D17/10
Filed: 1997-07-09
Abstract: PROBLEM TO BE SOLVED: To attain high efficiency over a wide operating range by providing a diffuser provided surrounding an impeller, and a scroll provided at the outer periphery of the diffuser, and independently adjusting the passage width of the diffuser and the cross-sectional area of the scroll. SOLUTION: In a diffuser 2 provided surrounding an impeller 1, a clearance between a sealing plate 5b and a movable wall 7a of a movable diffuser 7 is formed as a diffuser passage. An annular piston member 7c provided at the inner surface is accommodated in an annular groove 5d formed at a shroud casing 5c, so as to make the movable diffuser 7 shiftable with oil pressure. A piston member 9a provided at the outer periphery of a variable scroll member 9 is accommodated in an annular groove 5e formed at the inner surface of an outer casing 5a, so as to make the variable scroll member 9 shiftable with oil pressure. Matching between the diffuser 2 and a scroll 3 can therefore be attained over a wide flow range.
Patent JP-S6072907-A (JP)
Title: Polymerization or copolymerization of 1,3-butadiene
Inventor: SEKI TOMOAKI
IPC: C08F4/00
Filed: 1983-09-30
Abstract: PURPOSE:To make it possible to produce a 1,3-butadiene polymer having a wide range of a vinyl content, by polymerizing 1,3-butadiene in the presence of tetrahydrofuran and ethylene glycol dibutyl ether. CONSTITUTION:1,3-Butadiene, alone or together with a vinyl-substituted aromatic hydrocarbon, is polymerized in the presence of an organolithium compound of the formula, a hydrocarbon diluent, 0.0001-1wt%, preferably, 0.001- 0.5wt% based on the hydrocarbon diluent, tetrahydrofuran, and 0.0001-1wt%, preferably, 0.0001-0.5wt% ethylene glycol dibutyl ether. In the forumula, R<1> is an aliphatic, alicyclic, or aromatic hydrocarbon group, and X is 1-4. Preferred vinyl-substituted aromatic hydrocarbons include compounds having a benzene nucleus to which one vinyl group is bonded, especially styrene.
Patent JP-S6339292-A (JP)
Title: Chrominance signal suppression circuit
Inventor: SUGIHARA SHOICHI
IPC: H04N9/77
Filed: 1986-08-04
Abstract: PURPOSE:To suppress a C signal at the time of high luminance and to obtain a proper picture quality even in a video camera where a Y signal and the C signal are separated and outputted by inputting a chrominance signal in a clipping circuit and clip-separated ping the chrominance signal into a high luminance. CONSTITUTION:The Y signal is inputted in an input terminal 21 and a clamp pulse is inputted in the input terminal 22, then it is clamped in a clamp circuit consisting of a capacitor 23, transistor 24 and a clamp power source 25 to fix its DC level. Resistances 27 and 28 which become the load of the transistor 26 have same values and the emitter of the transistor 26 obtains the same phase signal to the input and the collector of the transistor 26 obtains an antiphase signal, the amplification degree of a voltage becomes '1' and '-1'. Transistors 29 and 30 are buffers and constitute an emitter follower which corrects the temperature characteristic of the VBE of the transistor 26. And in case of picking up with a spot the process is like a figure and only the C signal in the part of a Cy is clipped. A dot-line shows the clipped part. Even if the Y signal and the C signal are separated, a proper clip can be executed.
Patent JP-H0626776-A (JP)
Title: Heat exchanger
Inventor: YAMASHITA HIROYUKI
IPC: F28F1/12
Filed: 1992-07-10
Abstract: PURPOSE:To enhance the whole strength of a heat exchanger and prevent an increase in draft resistance attributable to a failure which keeps a sufficient span between mesh-shaped fins. CONSTITUTION:A heat exchanger comprises a large number of heat exchanger tubes 1 laid out in parallel and a large number of mesh-shaped fins 2 joined with the outer circumference of the heat exchanger tubes in parallel to the longitudinal direction of the tubes. Span holding members 4 are interposed between these mesh-shaped fins 2 so as to hold a specified span between the mesh-shaped fins.
Patent JP-H0862349-A (JP)
Title: Watch
Inventor: MISHIERU AREN SHIEBURUURU
IPC: G02B25/00
Filed: 1995-07-20
Abstract: PROBLEM TO BE SOLVED: To provide such a watch as being capable of enlarging information from an information display means with high information density to be easily read out by using a compact optical enlarging device. SOLUTION: A watch 31 has a liquid crystal display 34 arranged under a glass 8 and a clock movement 32 working therewith. The watch 31 also has an active display 36 arranged in a case 4, a mirror 40 arranged in an outer cap 6 and a magnifying lens 38 arranged under the glass 8. Optical elements are arranged so that light coming from the active display 36 can be reflected from the mirror 40 toward the magnifying lens 38.
Patent JP-H0831837-A (JP)
Title: Deposition method of polysilicon for eg
Inventor: YAMAMOTO MINORU
IPC: H01L21/322
Filed: 1994-07-12
Abstract: PURPOSE:To obtain a method for depositing polysilicon for EG in which contamination due to organic compound and generation of protrusions are suppressed and the level of metal impurities is lowered without lowering gettering capacity with small grain boundary. CONSTITUTION:A silicon wafer is cleaned with SC-1 and then cleaned with hydrofluoric acid. It is then immersed into ozone solution having concentration of 0.5ppm or above thus depositing several Angstrom  oxide. Subsequently, polysilicon is deposited on the rear side of the wafer by low pressure CVD.
Patent JP-S6428506-A (JP)
Title: Position detector
Inventor: KARAKIDA SHIYOUJI
IPC: G01B11/00
Filed: 1987-07-23
Abstract: PURPOSE:To detect the absolute position of a moving body and the presence thereof out of a position detection range, by simple constitution such that the comparing output of a photosensor row is passed through an FF and an edge detector to hold an absolute position and the FF is cleared by a scanning start pulse. CONSTITUTION:A drive circuit 6 receives the clock signal A from an oscillator 4 and the timing signal B divided in frequency from a counter 5 to start scanning at the falling of the signal and applies a signal C stopping scanning at the rising of the signal after the output of (N) (the number of sensors of a sensor row 3) pulse trains to the sensor row 3. The output of the sensor row 3 receiving the light of the light source 2 of a moving body 1 becomes a digital signal by a comparator 13 through a waveform processing circuit 12 and said digital signal is latched in a latch circuit 9 by the first pulse through an FF 14 cleared by the scanning start pulse of the signal B and an edge detection circuit 15 to output an absolute position signal. When the moving body 1 is present out of a position detecting range, the output signal G of the FF 14 becomes zero and, therefore, this state can be detected from the outside.
Patent JP-H0740389-A (JP)
Title: Molding method of solid wiring board
Inventor: SEKI TAKAHIRO
IPC: H05K3/00
Filed: 1993-07-26
Abstract: PURPOSE:To contrive molding of a product which secures a uniform flow at a product part and has neither a warp nor a twist, by a method wherein at the time of molding of a thin molded board for a solid wiring board, a tab becoming a resin rich area is provided at a final filling part facing a film gate. CONSTITUTION:In a product part 1 molding a thin board, a film gate 2 is provided in its long side direction and resin circulated through the gate 2 is received by a tab 3 as a resin receipt at an end part of the circulation. Hereby, a resin flow at the product part 1 is kept uniform and the product part 1 is prevented from generating a warp or a twist. Then, after the resin of the product part 1 is cured, the tab 3 and gate 2 are cut off, the product part 1 becomes a molded product, even a thin product can be filled with the resin having a fixed circulating direction and neither a warp nor a twist are generated.
Patent JP-H0741868-A (JP)
Title: Continuous annealing furnace
Inventor: SUGIYAMA SEIJI
IPC: C21D1/52
Filed: 1993-07-26
Abstract: PURPOSE:To prevent overheat of the width edge surfaces of a strip caused by the overheat of the faced wall surface to burners in a non-oxidizing type continuous annealing furnace for steel strip using the flame burners. CONSTITUTION:In the furnace, temp. measuring instruments 4 are arranged in the width direction of the strip S, and the cooling devices 3 for cooling excess heating at the edge parts of the strip S based on the measured strip temp. distribution are attached to the side wall at the position faced to the burners 2. By this method, the overheat of the wall surface faced to the flames of the burners 2 is prevented and the overheat at the edge parts in the width direction of the strip S by radiation from the wall surface can be prevented, and the accurate temp. control in the width direction can be executed.
Patent JP-S6245186-A (JP)
Title: Manufacture of semiconductor light-receiving device
Inventor: FUJIWARA YUZURU
IPC: H01L31/107
Filed: 1985-08-23
Abstract: PURPOSE:To increase the breakdown strength and to improve the multiplication factor characteristics in an n<+>-p-pi-p<+> type Si.APD, by appropriately selecting the concentration of ions implanted into a p-type layer and the duration of time for performing heat treatment. CONSTITUTION:A pi-type layer 2 having an impurity concentration of 5X10<12>-6X10<13> is formed on a high-concentration p<+> type Si substrate 1. An oxide film 3 is formed thereon and is provided with a window in its light- receiving surface section. Ions are implanted in a quantity of 4-5X10<12>cm<-2> so as to form a p-layer 5 having a width of 6-8mum in a part of the pi layer and the structure is heat treated at 1200 deg.C. A channel stopper 8 and an n-type diffused layer 10 are then formed and the whole surface is concered with a passivation film 12. A window is provided for n<+> type junction of the light- receiving section and ions are implanted to form n<+> type layer 14. An SiO2 film 15 in then formed on the N<+> type layer 14. The p-type layer is ultimately provided with a width of 9-11mum. Finally, an Al electrode 16 is provided.
Patent JP-H0233693-A (JP)
Title: Vending machine and merchandise packaging box
Inventor: MURAKAMI HIROMU
IPC: G07F11/00
Filed: 1988-07-23
Abstract: PURPOSE:To supply directly to a merchandise housing shelf and to simplify a merchandise supplying work by loading a merchandise packaging box into the machine while it is not opened, pulling out a tow rope from the packaging box and winding and operating to the winding drum in the machine. CONSTITUTION:In a merchandise packaging box 4, a tow rope 4d such as a tape and a string is extended in a zig zag way between a merchandise column and an intermediate partition plate 4a. One edge of the two rope 4d is fixed by a fixed tool 4e and other edge is pulled out from the hole of the part of a merchandise output 4b part to an external part. The packaging box 4 is mounted on a loading stand 5 in the machine while it is not opened, and the free edge of the tow rope 4d is winded to a winding drum 9a of a merchandise paying-out mechanism 9. In this condition, a motor 9b is driven, the tow rope 4d is winded and then, the merchandise to arrange at the lower-most step out of a merchandise 10 cuts and opens the sawing machine score of the output 4b, is opened and delivered to the starting wheel of a merchandise conveying control mechanism 8. Thus, the merchandise supplying work can be simplified and the labor burden of a person in charge of maintenance is reduced.
Patent JP-H0929482-A (JP)
Title: Method for brazing aluminum alloy casting material
Inventor: YAMAMOTO HIDEO
IPC: B23K35/28
Filed: 1995-07-20
Abstract: PROBLEM TO BE SOLVED: To provide a method for brazing aluminum alloy casting materials capable of well brazing these materials at a low temp. SOLUTION: The method for flux brazing the aluminum alloy casting materials uses an Al-Zn-Si alloy which contains 70 to 90wt.% Zn and 1 to 7wt.% Si, consists of the balance Al with impurities and is regulated in Fe as the impurity to <=0.1wt.% as a brazing filler metal. A flux mixture contg. 0.5 to 5wt.% CuCl and 0.5 to 5wt.% SnF2 and consisting of the balance BaCl2 , NaCl, LiCl and ZnCl2 is used as the flux.
Patent JP-H0929339-A (JP)
Title: O press forming of uo steel tube
Inventor: YAMASHITA HIDEKAZU
IPC: B21D5/01
Filed: 1995-07-20
Abstract: PROBLEM TO BE SOLVED: To form a product having outer diameter range which is unformable by executing O press forming by using a die for O press forming in which radiuses and radius center positions of upper/lower dies are different. SOLUTION: O press forming is executed with an upper die 1 and lower die 2 for O press forming. The upper die 1 is a UO steel tube O press forming die for existing inch size. The lower die 2 is a die to be newly produced for millimeter size. A radius R/radius center A of the upper die 1 and radius R'/ radius center A' of the lower die 2 are different in value/position. The upper/ lower dies 1, 2 have a liner part B cut off from true round state. An offset quantity α of the radius centers A, A' of the upper/lower dies, an expanding rate β after forming and an outer diameter Z of product steel tube are in conformance with the equation I and equation II. Roundness of the steel tube after O press forming is taken into account, an offset quantity and radius R' are decided and then a steel tube of an outer diameter Z is formed.  The lower die 2 only is required to newly produce and the die production cost is made low.
Patent JP-H0351701-A (JP)
Title: Measuring method for surface of sample using tunnel current
Inventor: OGUCHI TAKAHIRO
IPC: G01B7/34
Filed: 1989-07-19
Abstract: PURPOSE:To enhance resolution by laminating a conductive monomolecular film which has a hydrophilic part and a hydrophobic part and comprises organic molecules, and measuring the roughness of the surface by using a tunnel current. CONSTITUTION:A conductive monomolecular film 2 which has a hydrophilic part and a hydrophobic part and comprises organic molecules is laminated on the surface of an insulating sample 1. Leading electrodes 3 to the outside are attached. The irregularities on the surface of the sample are observed. A bias voltage is applied across a probe and the sample through the electrodes 3. A tunnel current flowing between the probe and the sample is inputted into a control circuit. Thus, a minute movement controlling mechanism is controlled. The distance between the electrodes 3 is controlled with the control circuit so that the tunnel current is constant all the time. Thus, the probe is controlled, and the surface of the sample is observed. In this way, the surface roughness of the sample can be measured readily for the large area with high resolution.