baber/WOPTO huggingface dataset:
Patent JP-2001116933-A (JP)
Title: Light guide
Inventor: NASUDA SHOGO
IPC: G02B23/26
Filed: 1999-10-14
Abstract: PROBLEM TO BE SOLVED: To provide a light guide which protects optical fibers while preventing the optical fibers from spreading apart and also shows excellent flexibility. SOLUTION: The light guide 1 is equipped with optical fibers 5 which have both ends bundled and fixed by metal fittings 3 and a rubber-made tube 7 which covers the optical fibers 5. The tube 7 is so constituted to a large diameter as to cover the optical fibers 5 while leaving a gap and both the ends 7a are thermally shrunk and then fixed onto the outer peripheries of the metal fittings 3. The tube 7 prevents the optical fibers 5 from spreading apart and protects the optical fibers 5. Further, the tube 7 covers the outer peripheries of the optical fibers 5 while leaving the gap, so the individual optical fibers 5 are able to spread and move within the range of the gap and the flexibility of the light guide 1 is also secured.
Patent JP-S62153231-A (JP)
Title: Production of pseudocumene and/or durene
Inventor: ASAOKA SACHIO
IPC: C07C1/00
Filed: 1985-12-26
Abstract: PURPOSE:A zeolite mainly composed of metallosilicate containing iron and aluminum in its skeleton is used as a catalyst to produce the title compound of high purity from methanol and/or dimethyl ether in high yield and selectivity. CONSTITUTION:A zeolite mainly composed of crystalline metallocilicate containing iron and aluminum in its skeleton, preferably ZSM-5 or a substance resembling it in the silica skeletal structure, is used as a catalyst, to effect the reaction of methanol and/or dimethyl ether at 320-500 deg.C under normal p[ressure to a little elevated pressure to give pseudocumene or durene. The catalyst is prepared by the hydrothermal reaction of aluminum source, silica sources, iron sources and crystallzer in an aqueous medium.
Patent JP-H05109240-A (JP)
Title: Video tape recorder
Inventor: OGURO MASAKI
IPC: G06F12/00
Filed: 1991-10-12
Abstract: PURPOSE:To shorten the time for making a table for managing the recording state of a video tape in the lump. CONSTITUTION:A management area is provided in the beginning of the tape for the purpose of grasping its recording state, where management information including a compressed picture signal and an address signal showing its position is recorded. The impressed picture signal and the address signal and an index signal for its mark are recorded in the leading position of a program. When a desired picture is selected by displaying a table of the management information on a screen at the time of reproducing a video signal, a program can be retrieved by detecting its index signal. When the index signal is detected by an index/address signal detecting circuit 18 at the time of fast forward reproducing and high speed search, etc., in the video tape recorder 1, the management information recorded in the leading position of the program corresponding to this index signal is stored in memories 19 and 21, and hence the information is always renewed. At the time of turning off a power source and at the time of ejection, such management information of a tape range whose management information has not the whole tape is recorded in the management area of the beginning of the tape.
Patent JP-S62154994-A (JP)
Title: Color video camera circuit
Inventor: SOKEI HIROICHI
IPC: H04N9/73
Filed: 1985-12-27
Abstract: PURPOSE:To obtain excellent picture quality even when the color temperature of lighting deviates from standard color temperature of 3,200 deg.K by providing a brightness signal correcting circuit which controls a brightness signal level by using a white balance control signal. CONSTITUTION:A negative feedback loop is so formed that analog voltages obtained by a converting the counted value of an up/down level counter circuit 13 through DA converters 19 and 20 are used as control voltages of variable gain amplifiers 2 and 3. Then, a blue variable gain amplifier 2 and a red variable gain amplifier 3 are brought under gain control so that color difference signals B-YL and R-YL are zero, thereby adjusting white balance automatically. A brightness signal correcting circuit 21, on the other hand, slices the excessive part of the difference signal between the gain control voltage and brightness signal YL outputted by the DA converters 19 and 20 of the up/down level counter 13 with a constant slice level outputted from slice circuits 24 and 25. Then, the remaining color difference signal is added to the brightness signal YH to add or subtract the brightness signal YH, thereby correcting the brightness. Consequently, the brightness is adjusted to the standard brightness of the NTSC system.
Patent JP-S62152720-A (JP)
Title: Manufacture of high-strength polyvinyl alcohol molded part with high elasticity modulus
Inventor: AMANO MICHIYUKI
IPC: B29K29/00
Filed: 1985-12-27
Abstract: PURPOSE:To make it possible to realize polyvinyl alcohol (PVA) products in various shapes higher in strength and elasticity modulus by a method wherein a polyvinyl alcohol molded part is oriented by heating with microwaves in two steps at specified orienting temperatures. CONSTITUTION:When a PVA molded part 1 is oriented by heating with microwaves, the part is heated with microwaves at an orienting temperature of 160 deg.C or lower and oriented at a draw ratio of 8. After that, the part is further heated with microwaves at an orienting temperature of 170-210 deg.C and oriented at least draw ratio of 15. Because high-strength PVA molded parts with high elasticity modulus in various shapes can be manufactured in such a manner as mentioned above, the resultant molded part can be used for various applications such as rope, tape material, communication cable material, film material, construction material and the like, to all of which the strength and resistance to deformation are requested.
Patent JP-2000104382-A (JP)
Title: Roofing tile
Inventor: KATAYAMA TORU
IPC: E04D1/30
Filed: 1998-09-30
Abstract: PROBLEM TO BE SOLVED: To provide a roofing tile which is provided with a function of a gutter in itself in common with the tile by only roofing the eaves of the roof and which can be beautifully constructed by eliminating the gutter at the eaves in the external appearance. SOLUTION: This roofing tile 1 is made of plastic or other materials for roofing the eaves of the roof and forming a gutter. The eaves end of the roofing tile body 2 is made hollow to form a rainwater reservoir 3. A rainwater outfall 4 communicating with the rainwater reservoir 3 is provided at the eaves end side of the upper face of the roofing tile body 2. A joint structure constituted of the communication hole 9 of the rainwater reservoir 3 side and a connection cylinder 10 connecting the communication holes 9 corresponding to each other is provided at both sides of the lower end of the rainwater reservoir 3.
Patent JP-H03154208-A (JP)
Title: Manufacture of magnetic head
Inventor: OTA HIROYUKI
IPC: G11B5/23
Filed: 1989-11-10
Abstract: PURPOSE:To form a gap in an excellent way by making gap forming faces of a couple of head core block halves in contact with each other and pressing outer faces from the outside through the use of a pressing member via an interposing member. CONSTITUTION:Gap forming faces of a couple of head core block halves 101, 102 are made in contact with each other and pressing members 103, 104 are provided respectively to press outer faces 113, 114 of the head core block halves 101, 102. Then interposing members 201, 202 made of a copper or a copper alloy are interposed between the press members 103, 104 and the core block halves 101, 102 are welded together by pressing the press members 103, 104 from the outside to form a gap. The interposing members 201, 202 are subject to creep deformation at depression and uniform pressing force is exerted to the head core block halves 101, 102, then a gap is formed in an excellent way.
Patent JP-H01136556-A (JP)
Title: Protective circuit for acceleration power unit
Inventor: WATANABE KAZUHIRO
IPC: H02M9/00
Filed: 1987-11-20
Abstract: PURPOSE:To prevent voltage sharing elements from destructing, by detecting the elements of which the power losses exceed the specified value and by turning ON and OFF first or second semiconductor switches connected in parallel to the elements. CONSTITUTION:A main circuit of an acceleration power unit comprises thyristor switches 11, a step-up transformer 12, a rectifier 13, a smoothing capacitor 14, a voltage control circuit 30, a control circuit 41, a second semiconductor switch (GTO) 50, a rector 60 and feeds a current to a load 18. DC voltage dividers 171-17n are provided for measuring voltages of first semiconductor switches 311-31n respectively, and voltage signals 241-24n therefrom are inputted to the control circuit 41. A direct current transformer 51 is provided between the second semiconductor switch 50 and the reactor 60, and a current signal from the transformer 51 is inputted to the control circuit 41 likewise. Power loss of each of visual voltage sharing elements 321-32n is thereby detected. When it exceeds a predetermined value, the first semiconductor switches 311-31n provided in parallel are closed.
Patent JP-H08207295-A (JP)
Title: Ink jet printing mechanism,wiper assembly,and cleaning method for printing head
Inventor: ERITSUKU ERU AARUBIN
IPC: B41J2/165
Filed: 1995-10-17
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet printing mechanism of an in jet printer, a plotter, a scanner, a facsimile or the like equipped with a cleaning function of a printing head nozzle portion. SOLUTION: An ink jet printing mechanism is provided with a plurality of printing heads 24-27 having nozzle portions 28-31, a carriage 20 capable of carrying a plurality of the printing heads to a service station 16 through a printing region 18, and the wiper assembly 40 attached to the service station to clean the nozzle portions 28-31 of the printing heads. A first wiper portion for wiping the first set of at least one printing head nozzle portions and a second wiper portions for wiping the second set of a plurality of the printing head nozzle portions are provided.
Patent JP-H04108331-A (JP)
Title: Fishing line and fishing hook
Inventor: SHINODA NORIMASA
IPC: D02G3/36
Filed: 1990-11-01
Abstract: PURPOSE:To obtain a fishing line and a fishing hook which hold a sufficient tensile strength when used and which are naturally decomposed and disappeared when left or discarded in water, by employing a specific hydrolyzable polyester as a raw material. CONSTITUTION:A fishing line is composed of the fiber of a hydrolyzable polyester having a repeating unit structure containing at least glycolic acid units and/or lactic acid units, such as polyglycolic acid, polylactic acid or glycolic acid-lactic acid copolymer, or a twisted yarn and/or a knitted yarn of the above fiber with a non-hydrolyzable fiber, and coated with a polymer having a lower hydrolyzability than the hydrolyzable polyester, such as polylactic acid. The hydrolyzable polyester is employed as a raw material to provide a fishing hook.
Patent JP-H08136400-A (JP)
Title: Method and device for detecting element characteristic defect
Inventor: SHOJI HIROYUKI
IPC: G01R31/26
Filed: 1994-11-04
Abstract: PURPOSE: To detect minute characteristic defects by measuring discontinuous points (kink) of a characteristic curve of differential efficiency (dL/dI) or the like of a laser diode or the like without any error. CONSTITUTION: Measured characteristic curve data of dL/dI (L: output light, I: drive current) of a laser diode are input to a model circuit 2 through a data input device 1. The model circuit 2 smoothes the characteristic curve data (a) by a remote two-point average method. Remote two-point average method model data (b) are input to a feature extraction circuit 3, and a difference between the characteristic curve data (a) which are input data and the remote two-point average method model data (b) is calculated in the circuit 3. The calculated result is output to a judgment circuit 4 as difference data (c).  In the judgment circuit 4 the difference data (c) from the feature extraction circuit 3 are compared with discrimination threshold values (d), if the difference data (c) are smaller than the judged threshold values at all points, products are judged to be good and if not so, the products are judged to be inferior.
Patent JP-H11129496-A (JP)
Title: Ink jet recorder
Inventor: USUDA HIDENORI
IPC: B41J2/175
Filed: 1997-10-27
Abstract: PROBLEM TO BE SOLVED: To detect the ink end with high accuracy. SOLUTION: Based on the fact that the voltage variation rate per unit time is different significantly when ink is present and not present in an ink cartridge if the output voltage from a temperature detection circuit built in a head driver IC 10 indicates a level proportional to the chip temperature, head driving is stopped quickly at the ink end thus performing highly accurate ink end detection for using up the ink.
Patent JP-S63147188-A (JP)
Inventor: YOKOISHI SHOJI
IPC: G02F1/17
Filed: 1986-12-10
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-H08152741-A (JP)
Title: Electrostatic charge image developing toner
Inventor: SAWAI MASAYUKI
IPC: G03G9/08
Filed: 1994-11-29
Abstract: PURPOSE: To prevent occurrences of offset on a fixing roller and filming on a photoreceptor drum by incorporating a colorant and a styrene-acrylic copolymer and a polyethylene specified in its melt viscosity. CONSTITUTION: This electrostatic charge image developing toner comprises the colorant and the styrene-acrylic copolymer and the polyethylene having a melt viscosity of 22,000-26,800mPa.s at 140 deg.C. The styrene-acrylic copolymer as the toner binder is embodied by a styrene-acrylate copolymer and the like and it is used alone or in its mixture, thus preventing occurrence of the offset phenomenon that a part of a toner image is attached to the surface of the fixing roller and transferred to the next transfer sheet and scratching the photoreceptor drum, and therefore, occurrence of the filming phenomenon can be prevented.
Patent JP-2001152139-A (JP)
Title: Water-repellent film and its preparation process
Inventor: NAKAJIMA AKIRA
IPC: B05D5/00
Filed: 1999-10-18
Abstract: PROBLEM TO BE SOLVED: To prepare a film having a transparency and a super water-repellency and retains the super water-repellency over a long time, and a coating material therefor and to provide a preparation process therefor. SOLUTION: A transparent ground layer which has a surface having an average roughness of <=100 nm and a maximum roughness of <=1.0 μm and fine irregularities with an average pore size of<= 200 nm, is subjected to a water-repellent treatment using a fluororesin to yield a super water-repellent transparent film. By adding an appropriate amount of a photocatalyst to this super water-repellent transparent film, its super water-repellent property is retained over a long time. When the photocatalyst is titanium oxide, the appropriate amount of the photocatalyst is about 2 wt.%.
Patent JP-H05136586-A (JP)
Title: Refrigerator water pan structure and support structure thereof
Inventor: SHIMAZAKI TETSUYA
IPC: F25D21/14
Filed: 1991-11-12
Abstract: PURPOSE:To enable a water pan to be lessened in manufacturing man-hours and quickly and easily assembled in a refrigerator by a method wherein the water pan is formed in one piece with synthetic resin, and a hole to which the water pan is fitted. CONSTITUTION:Vent holes 31 are provided vertically penetrating a water pan 27, and the water pan 27 receives cooling water which is generated in a refrigerator to drop. The water pan 27 is formed in one piece, so that it can be formed in a short time and enhanced in dimensional accuracy. As the water pan 27 is molded from synthetic resin into an integral structure, it can be formed lightweight, easily handled, and easily assembled in a refrigerator. Furthermore, a hole 26 into which the end of the water pan 27 is fitted is provided to the refrigerator, so that at least one end of the water pan 27 can be supported at the refrigerator only by fitting it into the hole 26, and man-hours required for assembling the water pan 27 in the refrigerator can be lessened.
Patent JP-S63148414-A (JP)
Title: Magnetic recording medium
Inventor: SHOJI SABURO
IPC: C10N40/18
Filed: 1986-12-12
Abstract: PURPOSE:To provide the titled medium which has excellent durability and exhibits a good lubricating effect for a long period and to improve the reliability of a magnetic disk by fixing one end of compds. containing a fluorine group into the surface layer of the magnetic recording medium. CONSTITUTION:At least one kind of the compds. expressed by formula I is incorporated into the surface layer of the magnetic recording medium. In formula I, Rf denotes a fluorine containing alkyl group or fluorine contained polyether group, R' denotes -CH2- or -CO-, R'' denotes an oxyalkylene group of 2-3C, (m) denotes an integer, >=0, (n) denotes an integer of (0-5). More specifically, a phenyl group 5 without contg. fluorine has good affinity to the binder resin in a magnetic layer 2 and is, therefore, securely fixed into the magnetic layer. Since the fluorine contained compd. 4 contg. cargon atoms at a high ratio and having particularly excellent lubricating effect has low surface energy, said compd. is oriented in the surface of the magnetic layer and the lubricating effect thereof is exhibited sufficiently and continuously for a long period. The memory medium having high durability is thereby obtd.
Patent JP-H07144429-A (JP)
Title: Static recording device
Inventor: MORIYAMA AKIHIRO
IPC: B41J2/385
Filed: 1993-11-25
Abstract: PURPOSE:To provide a static recording device which especially holds a set space against an electrode between a recording electrode and an intermediate recording medium across the entire width directional area of a developer transport path, prevents the developer from fusing and depositing and can form a recorded image with superb resolution and excellent sharpness. CONSTITUTION:The tip of a recording electrode sheet 17 adhering to a spring sheet material 18 is formed of a recording electrode EL, in such a state that the tip protrudes from a stepped part provided on a development sleeve and faces a cylindrical electrode 5. In addition, the spring sheet material 18 has the tip bent so that its waving is prevented from occurring. Thus the flatness of the recording electrodes ELs arranged in parallel is ensured so that a recorded image with stable resolution and excellent sharpness can be formed, across the entire recording electrodes installed in parallel without pressing a developer, against the vibration or deviation of the stem of the cylindrical electrode 5 and a projecting part formed on the development sleeve 15.
Patent JP-H10146920-A (JP)
Title: Article with water-and oil-repellent film and forming method thereof
Inventor: OGAWA KAZUFUMI
IPC: C09K3/18
Filed: 1997-10-28
Abstract: PROBLEM TO BE SOLVED: To provide a highly water- and oil-repellent molecular membrane coated article by a method wherein an uneven layer prepared by mixing finely divided particles and a silicate glass is provided on the surface of a glass base and, in addition, a water- and oil-repellent film consisting of a fluorocarbon group and siloxane group-containing polymer layer or single molecular layer is chemically bonded onto the above-mentioned layer through a siloxane bond. SOLUTION: By coating finely divided particles 2 and silicate glass on the surface of a glass base 1, a rough surface consisting of a layer 3 having a submicron-micron order unevenness is formed. By thinly coating fluorine-based surface active agent such as CF3 CH2 O(CH2 )15 SiCl3 or the like together with nonaqueous solvent, a dehydrochlorination reaction is conducted. Next, by removing excess surface active agent, fluorine group containing molecules are bonded to the glass base and/or the surface of the finely divided particles, resulting in obtaining a film 4 excellent in water- and oil-repellency and improving the water repellency to the water 5.
Patent JP-H08163215-A (JP)
Title: Radio telephone system
Inventor: SUMINO TOSHIO
IPC: H04M1/73
Filed: 1994-11-29
Abstract: PURPOSE: To reduce the power consumtion of radio telephoney system by decreasing the frequency of reception processing. CONSTITUTION: At the radio telephoney system, the current time is counted and a RAM 7 stores time zones such as midnight in which the incoming of calling information is few. A time deciding circuit 9 decides whether the counted current time belongs to such a time zone or not and when such a time zone comes, a timing signal for intermittently receiving a call is thinned out by a reception timing control circuit 5. Synchronously with the thinned timing signal, a reception system TDMA processing part 4 performs the detection processing of calling information. Thus, the timing signal is thinned out so that the power consumption at the reception system TDMA processing part 4 can be reduced.
Patent JP-S62155233-A (JP)
Title: Separation of 4,4'-dihydroxydiphenyl ether
Inventor: ONO NORIO
IPC: C07C43/295
Filed: 1985-12-27
Abstract: PURPOSE:To easily obtain the titled substance, by carrying out dehydrative dimerization reaction of hydroquinone in a water-immiscible solvent, contacting the liquid reaction mixture with water to extract unreacted hydroquinone and the titled substance to the water phase and precipitating the objective substance from the separated water phase. CONSTITUTION:Hydroquinone is subjective to dehydrative dimerization reaction in a water-immiscible solvent in the presence of a solid acid catalyst (e.g. synthetic mica, ion exchange resin, etc.). The resultant liquid reaction mixture is made to contact with water to extract the unreacted hydroquinone and the titled substance to water phase and the titled substance is precipitated from the separated water phase at <=50 deg.C. The amount of water to be contacted with the liquid reaction mixture is selected to be sufficient to dissolve the whole unreacted hydroquinone at >=70 deg.C and the contacting temperature is >=55 deg.C (preferably 70-90 deg.C). EFFECT:Thermal decomposition of the product is prevented because the separation is carried out without applying excessive heat. USE:Raw material for synthetic polymers, organic chemicals, etc.
Patent JP-H05136589-A (JP)
Title: Assembly method of optical data link
Inventor: IMAMURA KEIICHI
IPC: H04B15/00
Filed: 1991-11-12
Abstract: PURPOSE:To enable an optical data link to be enhanced in ESD resistant property by a method wherein the grounding plane of a circuit board is connected to that of a case with conductive material. CONSTITUTION:The rear side 2 of a circuit board 1 of an optical data link is made to serve as a solid grounding plane, and a grounding plane 3 on the front side is connected to the solid grounding plane 2 through a through-hole 4. A figure 5 denotes a mounted component. On the other hand, a case 6 is formed of non-conductive material, but the inner wall 7 of the case 6 where the circuit board 1 is mounted is formed into a solid grounding plane 7 with copper plate or the like, and the solid grounding plane 7 is connected to a grounding foot pin 8A out of outer foot pins 8 with a host pin 9A through a wiring provided inside the case. The other host pins 9 are electrically connected to the foot pins 8 excluding the grounding foot pin 8A with a wiring inside the case and connected to an electrode provided onto the surface of the circuit board 1. The solid grounding plane 2 formed on the rear side of the circuit board 1 as above is connected with the solid grounding plane 7 provided onto the inner wall of the case 6 with electrically conductive resin 10, and the circuit board 1 is mounted on the case 6. By this setup, an optical data link of this design can be sharply improved in ESD resistant properties.