baber/WOPTO huggingface dataset:
Patent JP-H04136118-A (JP)
Title: Production of refractory steel products for building structure
Inventor: UCHIDA KIYOSHI
IPC: C22C38/14
Filed: 1990-09-28
Abstract: PURPOSE:To improve weldability and high-temp. strength by hot rolling steel products for structure purposes having a specific compsn., then subjecting these steel products to air cooling after a rapid cooling treatment. CONSTITUTION:The steel products consisting of the compsn. contg. 0.03 to 0.15wt.% C, 0.01 to 1.0%, Si, 0.10 to 1.0% Mn, and 0.15 to 0.40% Mo and contg. at least one kind selected from 0.005 to 0.030% V, 0.005 to 0.030% Nb, 0.005 to 0.030% Ti, and 0.001 to 0.020% REM, and consisting of the balance Fe and unavoidable impurities are heated to 1100 to 1200 deg.C. After the hot rolling is ended in a temp. range of 950 to 800 deg.C, the steel products are rapidly cooled down to 750 to 500 deg.C and are thereafter cooled with air. The refractory steel products for building structures which are equal in ordinary temp. strength to the conventional rolled steel products for welded structures and are low in the degradation of yield strength at a high temp. are obtd. in this way.
Patent JP-H10105954-A (JP)
Title: Magnetic recording medium
Inventor: ISOBE TSUTOMU
IPC: G11B5/66
Filed: 1996-09-27
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium which has improved adhesion between a carbon substrate and a magnetic layer, etc., and has improved magnetic characteristics. SOLUTION: The magnetic recording medium 1 constituted by providing at least ground layers 3, 3' and the magnetic layer 4 on the carbon substrate 2 is provided with a first ground layer 3 consisting of Cr directly on the carbon substrate 2 and a second ground layer 3' consisting of Cr or a Cr alloy between the first ground layer 3 and the magnetic layer 4. Further, no texture layer is provided between the first base layer 3 and the magnetic layer 4.
Patent JP-H1197719-A (JP)
Title: Lightning guard adaptor
Inventor: HARADA TSUKUHIDE
IPC: H01L33/00
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To prevent creeping of a lightning surge inputted from the public network side and protect communication equipment, by physically isolating the public network side and the communication equipment by first and second optical transmission systems, and providing separate power supply circuits for driving the public network and the communication equipment, respectively. SOLUTION: Light emitting diodes 9a to 9c and light receiving diodes 10a and 10b of a first optical transmission system, and light emitting diodes 24a and 24b and light receiving diodes 25a to 25c of a second optical transmission system are arranged to face each other with a transparent insulator provided between them. By thus perfectly electrically isolating the first optical transmission system and the second optical transmission system, a lightning surge inputted from a public network side to a lightning guard adaptor 3 is stopped at the first optical transmission system and is prevented from entering the second optical transmission system.  Also, as a power supply circuit 11 for driving the first optical transmission system uses a power source obtained by rectifying an alternating voltage supplied from the public network and storing the alternating voltage in a battery 5, creeping of the lightning surge to the side of a communication equipment 2 is prevented.
Patent JP-H01100571-A (JP)
Title: Process unit
Inventor: MARUYAMA AKIRA
IPC: G03G15/02
Filed: 1987-10-13
Abstract: PURPOSE:To easily clean the entire periphery of a corona wire without any uncleaned part by making the corona wire penetrates a corona wire cleaning part and pressing the entire peripheral surface of the corona wire which is brought into contacts with a member at all times. CONSTITUTION:The corona wire 12 penetrates the corona wire cleaning member 14 and is pressed against the entire peripheral surface of the corona wire contacting the member 12 at all the times. Consequently, the entire peripheral surface of the corona wire 12 is cleaned. Further, the cleaning is performed by one-directional operation, so the process unit is realized which provides good handling at the time of cleaning the corona wire 12.
Patent JP-H04134772-A (JP)
Title: Cartridge for detecting object lens contamination for optical disk drive device
Inventor: KONO HARUHIKO
IPC: G11B23/00
Filed: 1990-09-26
Abstract: PURPOSE:To prolong the life of an optical disk drive by reducing the number of times of the cleaning of the objective lens of optical pickup by providing a light source and a light receiving means in a cartridge case, and outputting this light reception result to outside the cartridge. CONSTITUTION:An optical disk detects the cartridge for detecting the contamination of the objective lens by the detection hole 9 of a cartridge 8, and controls it to a dust detection state. Next, the light reception amount Sm at a photodetector 5 for a monitor and the light reception amount Se fora photodetector 4 is taken out to an external electric processing circuit, and the necessity of cleaning is decided by the calculation of Se/Sm. That is, the reflectivity of the surface fixed to the photodetector 5 for the monitor for a polarized filter 6 is made to be X, the reflectivity of an objective lens 2 to incident light beam L is made to be Y, and the reflectivity X is set so that the formula X=1/(1+Y) is satisfied. Thus, the cleaning is executed at an appropriate time, and the life of the optical disk drive is prolonged.
Patent JP-H0599744-A (JP)
Title: Method for erasing information recorded in infrared-visible transducer
Inventor: TAMURA YASUAKI
IPC: G01J5/48
Filed: 1991-10-04
Abstract: PURPOSE:To erase the information accumulated in an infrared-visible transducer by applying an AC voltage and/or pulse voltage across an infrared accelerated phosphorescence. CONSTITUTION:This infrared-visible transducer is constituted by providing an infrared accelerated phosphorescence 1 between a transparent electrode 2 and electrode 3 and at least infrared rays and excitation light (visible or ultraviolet rays) are transmitted through the electrode 2. At the time of writing information, the phosphorescence 1 is irradiated with infrared rays for readout from the electrode 2 side. At the time of erasing written information, an AC voltage and/or pulse voltage are applied across the electrodes 2 and 3. When the phosphorescence 1 is of a CaS-Eu-Sm type, electrons caught by the Sm are again caught by the Eu and the erasure of written information becomes possible.
Patent JP-H1198824-A (JP)
Title: Dc-dc converter
Inventor: YABE YASUSHI
IPC: H02M3/155
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To suppress the decline in efficiency at light loading and cope with a wide range of loads by switching FETs to be used in a converter by a signal output when load current detected by a plurality of FETs is at least a preliminarily set value. SOLUTION: A current detecting resistor is inserted before a load and the output (load) current is detected by a current detecting section 7 and the detected current is sent to a control section 8 which outputs signals to control pulses A, B according to the detected value and controls pulses. When a FET2-1 has a large current supply capacity and a FET2-2 has a small current supply capacity and the detected output current is the set value, the control section 8 outputs H signals to the control pulse B to give the H signals to the gate of the FET2-2 of a small current supply capacity. When the detected value is more than the set value, H signals are given to the gate of the FET2-1 from the control pulse A.  Thus, by switching FETs to be used in a converter or increasing the number of FETs when the output current becomes more than the set value and using the FETs efficiently, a wide range of loads can be coped with.
Patent JP-H1197103-A (JP)
Title: Installing method for waterproof wiring bushing and wiring appliance
Inventor: MIZUCHI YASUHIRO
IPC: H01R13/52
Filed: 1997-09-24
Abstract: PROBLEM TO BE SOLVED: To prevent intrusion of water drops and/or moisture to the inside of the wall surface from a wiring hole made on the outdoor wall surface and the fastening part of wiring appliance. SOLUTION: A waterproof bushing 30 for wiring has outside dimensions as capable of being fitted into a wiring hole 1a without a gap and is provided with a hollow in such a shape and dimensions to admit insertion of a wire 20 without a gap, and a waterproof packing 40 for the fastening part is provided around a fastener 2. The wire 20 drawn out of the hole 1a is inserted through the hollow of the bushing 30, and the busing 30 is inserted into the hole 1a. Around the fastener 2, the packing 40 is installed in such a condition as in tight contact with the wall surface 1.
Patent JP-H02108767-A (JP)
Title: Parallel type vertical circulation parking device with conveying device
Inventor: OKUMURA TAKASHI
IPC: B65G1/127
Filed: 1988-10-14
Abstract: PURPOSE:To enable application of a device to both a longitudinal row type and a lateral row type, to reduce the weight of a conveying part, and to shorten a parking handling time by a method wherein vertical circulation parking devices using a single entrance exist in common installed in juxtaposition, and a conveying truck is arranged between the parking devices. CONSTITUTION:Two vertical circulation parking devices 3a and 3b using a single entrance exist 6 is parking device 3a near the entrance exist 6 is ordinarily formed such that a tray 20a is secured to a conveying device 10a, and a space part 5 equivalent to a space wide enough to contain at least one conveying device 10a therein is provided. The second parking device 3b is provided with a conveying device 10b in which a tray 20b can be mounted to and demounted from a conveying device frame. A conveying device 30 formed with a rail 31 and a conveying truck 33 running thereon and conveys the tray 20b of the second parking device 10b is provided. This constitution enables parking of cars in the two parking devices 3a and 3b using a single entrance exist in common.
Patent JP-H0573984-A (JP)
Title: Light pickup device
Inventor: HORIE NORISADA
IPC: G11B7/09
Filed: 1991-09-11
Abstract: PURPOSE:To attain the miniaturization, light weight, and low cost of a light pickup device. CONSTITUTION:Glass plates 14 and 15 arranged to be inclined to an optical axis are provided between a semiconductor laser 11 and a condenser optical system composed of a collimate lens 12 and an objective lens 13. A 1/2 wave length plate or a polarizing plate 18 is provided between the semiconductor laser 11 and the glass plate 14. The polarizing direction of the emitted light of the semiconductor laser 11 is adjusted by the 1/2 wave length plate or the polarizing plate 18. The emitted light radiated from the semiconductor laser 11 is condensed on an optical disk 20 by the condenser optical system. A reflected light from the optical disk 20 is condensed by the condenser optical system, reflected by the glass plates 14, 15, and received by photodetectors 21, 22 through photodetecting elements 31, 32. A data reading signal, tracking error signal, and focusing error signal are prepared based on the output signals of the photodetectors 21, 22.
Patent JP-2000084610-A (JP)
Title: Speed synchronizing device between rolling material and roller
Inventor: KATAYAMA HIROYUKI
IPC: B21C51/00
Filed: 1998-09-11
Abstract: PROBLEM TO BE SOLVED: To provide a speed synchronizing device for a rolling material and a roller by directly measuring the speed difference between the roller and the rolling material so as to make more precise control possible. SOLUTION: A device, which synchronizes the peripheral speed VR of a roller 3 to be driven by a motor 5 and a transfer speed VS to be transferred on the roller 3, is provided with a flaw detection device 8 to detect a slip flaw generated based on the speed difference between the roller 3 and a rolling material 4 and a speed controller 9 to adjust the roller speed VR of the roller 3 based on the detected flaw information.
Patent JP-S62155697-A (JP)
Title: Method and apparatus for control in time-sharing multiplex frame
Inventor: ARAN FURANKU GUREIBUZU
IPC: H04J3/04
Filed: 1986-10-31
Abstract: A multiplexed bit stream consists of interleaved words all of the same number of bits, the words corresponding to respective channels one of which is a synchronizing channel. A predetermined one of the bits of the words is used to identify the synchronizing channel, and may be used in the other, information, channels to carry service-related overhead and signalling information. The bit rate of the multiplexed bit stream is a harmonic of the bit rate of the individual channels. Such but streams can be further multiplexed together in a word-interleaved harmonic manner, whereby a harmonic structure of signals at different levels of multiplexing is built up.
Patent JP-H0570371-A (JP)
Title: Fat-soluble vitamin preparations for animal
Inventor: AOKI SEIJI
IPC: A61K47/10
Filed: 1991-09-11
Abstract: PURPOSE:To provide fat-soluble vitamin preparations enhanced in the absorption of the fat-soluble vitamin into the body of an animal by adding a medium chain fatty acid triglyceride to a fat-soluble vitamin composition. CONSTITUTION:A fat-soluble vitamin (e.g. vitamin A, E), a medium chain fatty acid triglyceride (e.g. caprylic acid), a surfactant (e.g. polyoxyethylene-hardened castor oil), a polyhydric alcohol (e.g. glycerol), and water are compounded as active ingredients and subsequently prepared into the subject preparations by a conventional method. The medium chain fatty acid triglyceride is compounded in an amount of 0.1-30 pts.wt. per pt.wt. of the fat-soluble vitamin, and the surfactant is employed in an amount of 1-10 times the total weight of the fat-soluble vitamin and the medium chain fatty acid triglyceride. The polyhydric alcohol is compounded in an amount of 0.1-2 pts.wt. per pt. wt. of the surfactant, and the water is added in a proper amount.
Patent JP-H03122095-A (JP)
Title: Method for forming polycrystal silicon thin film of large grain diameter
Inventor: NISHIDA AKIYUKI
IPC: C30B25/02
Filed: 1989-10-05
Abstract: PURPOSE:To improve characteristics, reproducibility and film quality of a polycrystal silicon film by controlling formation density of growing nuclei under specific conditions in the initial stage of forming the thin film at a low temperature. CONSTITUTION:A substrate 205 mounted on a substrate holder 206 is kept at 200-400 deg.C with a heater 208. A mixed gas of a raw material gas for forming a polycrystal silicon thin film, a hydrogen halide gas in an amount of 5-200 times based on the flow rate of the raw material gas and H2 gas in an amount of 10-1,000 times based on the flow rate of the raw material gas is then introduced from a gas introduction pipe 201 into a film forming chamber 202. The interior of the film forming chamber 202 is kept under 10<-5> to 300 Torr with an evacuation pipe 209 and an evacuation device 210. Activation energy is subsequently applied to the spacing between the upper electrode 203 and the holder 206 with a radio-frequency (RF) power source 204 to start discharge. The mixed gas is then excited and decomposed to form a large-grain diameter polycrystal silicon thin film of >=1 mum grain diameter while controlling the formation density of nuclei at >=5X10<4> to <=10<8> cm<-2>.
Patent JP-H03120618-A (JP)
Title: Production of magnetic recording medium
Inventor: TOBISAWA SEIICHI
IPC: G11B5/842
Filed: 1989-10-04
Abstract: PURPOSE:To obtain a high-quality coating state of the uppermost layer by incorporating urethane resin as a binder into the coating material for lower magnetic layers, incorporating vinyl chloride resin and urethane resin both containing polar groups as a binder into the coating material for the uppermost magnetic layer, and kneading the coating material for specified time. CONSTITUTION:The recording medium is produced by successively or simultane ously applying coating materials in a wet state on a traveling flexible body to form several magnetic layers, and then drying and calendering the layers. The coating material for a lower magnetic layer contains urethane resin as the binder and is applied by the amt. <=30cm<3>/m<2>. Vinyl chloride resin and polyurethane resin each containing polar groups are incorporated as the binder into the coating material for the uppermost magnetic layer. The coating material is kneaded for 5 minutes to 2 hours under the actual load of >=0.1 kw/kg- magnetic powder on the motor of the kneader, and then applied by the amt. <=25cm<3>/m<2>. By this method, coating property for the uppermost layer is signifi cantly improved and troubles in the coating process can be largely reduced.
Patent JP-2000074811-A (JP)
Title: Method for measuring fluidity characteristic of powder and grain
Inventor: KATSUTA HIROAKI
IPC: G01F3/26
Filed: 1998-08-27
Abstract: PROBLEM TO BE SOLVED: To quantitatively evaluate the uniformity of fluidity behavior of powder and grain by gradually inclining a holding member for powder and grain, and measuring the time required for falling a fixed quantity of powder and grain through the outflow part. SOLUTION: A support mechanism 4 has a rotating member 13 supported rotatably around a horizontal axis by a strut 12, and a holding member 2 is attachably and detachably provided at the tip of the rotating member 13. The opening of the holding member 2 formed the outflow port 2a of powder and grain 3. The holding member 2 is gradually inclined at a set speed, and the time required for falling a fixed quantity of the powder and grain 3 through the outflow part 2a is measured. This time shows the fluidity property corresponding to the easiness to flow of the powder and grain 3, and the shorter the time is, the better the fluidity is.  Since the time required for falling a fixed quantity of the powder and grain 3 through the outflow part 2a can be regulated by changing the speed of gradually inclining the holding member 2, this time can be prevented from being too shortened to evaluate the fluidity.
Patent JP-S62119076-A (JP)
Title: Mechanism for adjusting gap of printing head or printer
Inventor: OIKAWA TATSUHIKO
IPC: B41J25/308
Filed: 1985-11-19
Abstract: PURPOSE:To make it possible to automatically and easily adjust the gap of a printing head to a proper value corresponding to the thickness of paper without generating an error, by mounting a link mechanism for moving the movable body of a paper thickness detection mechanism with the operation of a paper setting lever while displac ing the same to the side of a fixed body and moving the printing head to the side of a platen by detected movement quantity. CONSTITUTION:When a paper setting lever 22 is picked up and pushed down rearwardly, a link 25 is horizontally slid to a forward direction and a movable roller 20 moves downwardly in a state contacted with an inclined edge 25b under pressure to widen the interval between the roller 20 and a fixed roller 19 and the rear side edge of a recessed part 25a is engaged with a head moving lever 12 to revolve said lever 12 to a counterclockwise direction and a printing head 10 is retracted from a platen 13. Then, paper 14 is set between upper and lower paper guide plates 15, 16. Thereafter, when the paper setting lever 22 is further forwardly pushed down from a neutral position, the link 25 is horizontally slid to a rearward direction and the movable roller 20 is raised by the inclined edge 25b and the front side edge of a recessed part 25b is engaged with a moving lever 22 to revolve said lever to the clockwise direction and the printing head 10 advances toward the platen 13.
Patent JP-H01122201-A (JP)
Title: Differential amplifier
Inventor: JIYON ERU ADEISU
IPC: H03F3/45
Filed: 1987-10-14
Abstract: PURPOSE: To restore the differential amplifier from its excess load state to a linear operation state within minimum delay time by connecting two feedback routes to be selectively formed in accordance with a linear or excess load state between the emitter of a Darlington feedback transistor(TR) and the base of one of emitter-connected TRs. CONSTITUTION: When a fine signal is impressed to an input terminal 18 under normal linear operation, a fine change is generated in a collector current of a TR Q2 and the change is fed back to the base of the TR Q2 by the emitter- follower function of TRs Q3, Q4 and normal state diodes D1, D2. When large negative voltage oscillation is generated in the terminal 18, the whole current from a current source 2IE is allowed to flow into a resistor 42 and not to flow into a resistor 40. Thereby the diodes D1, D2 and the TR Q4 are cut off and the feedback route is opened. When a diode D4 is turned on, a feedback route is applied from the collector of the TR Q2 to the base through the base-emitter connection of the TR Q3 and diodes D3, D4.
Patent JP-H07227569-A (JP)
Title: Formation of coating film
Inventor: AOKI MOTOHISA
IPC: B05D7/00
Filed: 1994-09-29
Abstract: PURPOSE:To provide an improved coating film forming method capable of being utilized to enhance the outer diameter precision regardless of the machining precision of a cylindrical or columnar substrate. CONSTITUTION:A cylindrical or columnar substrate 1 is horizontally supported and rotated, a coating soln. is supplied to the surface, and a coating surface forming member 18 is paralleled with the axis of the substrate 1 and brought into contact with the coating surface before the soln. loses its fluidity. As a result, the substrate for an electrophotographic photoreceptor having a required outer diameter precision (straightness, roundness, cylindricity, surface roughness, etc.) is produced only by additional simple coating without thinning the metallic substrate.
Patent JP-H0790726-A (JP)
Title: Weighing fiber-blending and mixed-spinning method
Inventor: NAKAMOTO TERUO
IPC: D01G13/00
Filed: 1993-09-21
Abstract: PURPOSE:To surely blend various kinds of stock fibers. CONSTITUTION:The delivered amounts of raw stocks opened by plural bale openers 2 are weighed batchwise by respective weighing mechanisms 3. The delivery starting time of each raw stock is adjusted and the stocks are blended in a common suction duct 5. The blended stock is mixed by a suction fan 4 and successively supplied to each tank of a mixing opener 6 provided with a number of tanks. The accumulated stock delivered from each tank of the opener is doubled, opened and mixed. Each raw stock is effectively mixed by the mixing in the common suction duct and the passing through the suction fan. The delivery unevenness (so-called large unevenness) of various raw stocks in the former step can be eliminated because the mixed raw stock is opened after doubling the raw stocks having different delivery timings by the mixing opener.
Patent JP-H06109430-A (JP)
Title: Method of measuring growth rate of crystal
Inventor: SHIOMI YUJI
IPC: G01J4/04
Filed: 1992-09-29
Abstract: PURPOSE:To obtain a method of measuring a crowth rate of crystal, wherein the growth rate of a specific crystal orientation can be measured with good accuracy and in a real-time manner without being affected by the convection, the agitation and the like of a mother liquor. CONSTITUTION:A beam of light (h) at a single wavelength is passed through a first polarizing plate (i). It is polarized. It is made incident perpendicularly on the crystal face of a crystal (j) which is being grown. Beams of light [a beam (n) of ordinary light and a beam (o) of extraordinaly light] which have come out by being transmitted through the crystal (j) are passed through a second polarizing plate (k) and composed. The intensity of a beam of composed light (p) which has come out by being passed through the second polarizing plate (k) is measured by a light-intensity measuring element 1. The cycle of a change in the light intensity of the beam of composed light (p) is measured, and the growth rate of the crystal (j) is obtained from the cycle of the change in the light intensity of the beam of composed light (p).