baber/WOPTO huggingface dataset:
Patent JP-H04118902-A (JP)
Title: Magnetic fluid whose discoloration has been prevented
Inventor: MURE HIROKI
IPC: H01F1/34
Filed: 1990-08-14
Abstract: PURPOSE:To effectively prevent a black color from being changed to a brown color by a method wherein thioglycolic acid, gluconic acid or their water-soluble salt is added to a water-based magnetic fluid which uses magnetite fine particles as dispersoids. CONSTITUTION:When a magnetic fluid of a water solvent is prepared by using magnetite prepared in an ordinary reactor equipped with a stirrer, 5g of dodecyl benzene sodium sulfonate, 5g of sodium oleate, 5g of sodium naphthenate and 5g of sodium thioglycolate are added to 100 of magnetite, their pH is adjusted and a water-based magnetic fluid is obtained. The magnetic fluid is left at a standstill for four weeks in an oven at 52 deg.C in a state that its 5cc have been filled in a pen-shaped container. After that, even when a line 60mm in length is drawn by the fluid, its color is not changed from the color of a line which has been drawn before the fluid is left at a standstill inside the heating oven. Even when the magnetic fluid is left at a standstill for 120 hours in the oven at 80 deg.C in a state that it is diluted to 100 times, it is possible to prevent its discoloration.
Patent JP-H02162005-A (JP)
Title: Drilling device for making
Inventor: ARUTSUURU FUITSUSHIYAA
IPC: B28D1/14
Filed: 1989-08-23
Abstract: PURPOSE: To obtain a drilling apparatus with a simple structure for producing drilled holes having an undercut by incorporating a bulge portion in a range between a stopper ring and a drilling head in a drill shaft, and using the shaft itself as a turning bearing during drilling via the bulge portion. CONSTITUTION: A drilling tip 4 is inserted into a drill head 3, and a side cutting blade of the tip 4 is bent from a drill shaft 1 and projected. The shaft 1 has a bulge portion 5 used as a turning bearing in the case of producing an undercut 6 between the head 3 and a stopper ring 2. The portion 5 is brought into contact with a wall of a drilled hole 7 with a cylindrical shape in this range, the turning range is limited by a shape of the portion 5, and a predetermined undercut is produced at a bottom of the hole. The ring 2 is fixed to the shaft 1 to limit a depth of penetration of the head 3. A drilling chip guiding groove 8 is provided to guide drilling chips generated during a drilling operation.
Patent JP-2000044791-A (JP)
Title: Polyurethane composition and fiber obtained therefrom
Inventor: KITAMURA KOTA
IPC: C08L75/04
Filed: 1998-07-30
Abstract: PROBLEM TO BE SOLVED: To obtain a polyurethane compsn. which is effectively protected from discoloration due to NO2 without detriment to characteristics inherent in polyurethane by incorporating (A) a specific diacid hydrazide compd. and (B) a hindered amine compd. into a polyurethane. SOLUTION: Ingredient A comprises at least one compd. represented by formula I (wherein R1 and R2 are each an alkyl or an aralkyl; R3 is a 1-10C alkylene; and (n) is 0-10), an example being a compd. of formula II. A known hindered amine compd. is used as ingredient B, such as an alkylpiperidine deriv. or an urethane compd. formed from a tert.-nitrogen-contg. diol and an org. diisocyanate. The amts. (wt.%) of ingredients A and B added, based on the polyurethane, are in the range represented by the formulas: 0.1 < ingredient A<5, 0.1 < ingredient B<5, and 0.05<A/B<5. A known polyurethane, such as based on a polyether, can be used.
Patent JP-2000043184-A (JP)
Title: Flame retardant decorative plate and its production
Inventor: KURODA SEIJI
IPC: B32B33/00
Filed: 1998-07-30
Abstract: PROBLEM TO BE SOLVED: To produce a flame retardant decorative plate having fire resistance, heat resistance, contamination resistance, abrasion resistance and others easily at low costs by laminating an adhesive layer, a decorative sheet layer, a surface protective layer comprising a curable resin added with a flame retarder in turn on one side of an inorganic substrate. SOLUTION: In a flame retardant decorative plate 1 in which an adhesive layer 3, a decorative sheet layer 4, and a surface protective layer 7 are laminated on the upper surface of an inorganic substrate 2, the surface protective layer 7 is formed from a curable resin incorporated with a flame retarder. A resin used as a known curable resin for a decorative plate such as an ionizing radiation curable resin or a thermosetting resin, a room temperature curing resin, and a two-component reaction curing resin can be used as a curable resin for forming the protective layer 7 on the surface of a paper sheet 5. The flame retarder to be added to the curable resin which forms the protective layer 7 of the decorative plate 1 is selected from an inorganic flame retarder, a phosphorus-containing flame retarder, a halogen type flame retarder, and others.
Patent JP-S6371445-A (JP)
Title: Automobile tail lamp control circuit
Inventor: OIDE SAKUJI
IPC: B60Q1/44
Filed: 1986-09-12
Abstract: PURPOSE:To enable to clearly warn the succeeding automobile of the running condition and to improve safety in running by arranging the constitution in such a way that a brake stepping amount detector is provided and the current to be supplied to a tail lamp may be increased according to the stepping amount of the brake. CONSTITUTION:In the driving of a car, when a driver steps on a brake pedal 10, analog current in proportion to the stepping amount is output by a brake stepping amount detector 3 and impressed to a lamp illuminance control circuit 4. Further each output signal of a speed detection sensor 5 and an external illuminance detection sensor 6 is input into the same circuit 4. In this lamp illuminance control circuit, current value in proportion to the detected value of the brake stepping amount is calculated and this current value is compensated according to the detected value of the running speed and the external illuminance. And the constitution is so arranged that a tail lamp 12 may be lit at proper illuminance according to the output signal of the lamp illuminance control circuit 4.
Patent JP-H0378111-A (JP)
Title: Magnetic head driving device
Inventor: KANEKAWA HIROSHI
IPC: G11B5/588
Filed: 1989-08-21
Abstract: PURPOSE:To obtain a recording track with superior linearity by fixing a cylindrical bobbin supported elastically at a constant position by using a fixing device. CONSTITUTION:Permanent magnets 22, 25, yokes 21, 24 which form a magnetic gap between the permanent magnets, and a magnetic head 16 are mounted on the device. When a current is made flow on shape memory alloy 36 and self-heating occurs in recording, the shape memory alloy 36 is extended in a direction perpendicular to the central axis of the bobbin, and an elastic member 35 is pressed in all directions, which fixes the bobbin 30 at the constant position. Therefore, the magnetic head can be fixed at the constant position without being oscillated in the up-and-down direction even when disturbance, etc., is applied. Thereby, the recording track with superior linearity can be obtained.
Patent JP-2000047633-A (JP)
Title: Resetting method of plasma display panel
Inventor: GYO INHITSU
IPC: G09G3/291
Filed: 1999-07-29
Abstract: PROBLEM TO BE SOLVED: To obtain a resetting method in which wall electric charges are eliminated by a weaker discharge during the address/display separation driving of a plasma display panel. SOLUTION: In the resetting method of a plasma display panel, a final maintaining discharge voltage is applied between first and second display electrodes of a unit subfield on the panel and residual wall electric charge is eliminated the surrounding of the electrodes. A first voltage, which has a higher level compared with the final maintaining discharge voltage and which has an opposite polarity, is applied between the first and the second display electrodes, and the wall electric charge is accumulated while a first discharge is executed. Then, the level of the first voltage is gradually reduced until the first and the second display electrodes have the same potential. While a second discharge which has a lower intensity than the first discharge and which has a longer time duration is caused by the accumulated wall electric charges, the wall electric charge is eliminated.
Patent JP-S58111710-A (JP)
Title: Method for measuring hose diameter
Inventor: TADA MIKIO
IPC: B29C48/92
Filed: 1981-12-25
Abstract: PURPOSE:To measure the inner and outer diameters of rubber hose formed by extrusion molding under the half cured state on line, by detecting the hose diameters through a pair of ultrasonic wave transmitting and receiving devices arranged on the outside of the rubber hose. CONSTITUTION:The rubber hose 12 is extruded and molded by an extruding machine 11, passes the central part of the ultrasonic wave transmitting and receiving device 15 wherein four ultrasonic wave transducers 1, 1', 2, and 2' are arranged so as to face each other through a water tank 14, and wound by a reel 13. The ultrasonic waves transmitted from the ultrasonic transducers 1, 1', 2, and 2' are reflected by the outer surface 3 and the inner surface 4 of the rubber hose. The reflected waves S3, S3', S4, and S4' are detected by the ultrasonic wave transducers 1, 1', 2, and 2', and the inner and outer diameters of the rubber hose 12 are obtained. A nozzle moving part of the extruding machine 11 is controlled by a control device 16, and the rubber hose 12 is kept at the axial center of the sensor 15. In this way, the inner and outer diameters of the rubber hose 12 are measured under the half cured state on line.
Patent JP-H0773427-A (JP)
Title: Magnetic recording medium
Inventor: MOROISHI KEIJI
IPC: G11B5/64
Filed: 1993-08-31
Abstract: PURPOSE:To improve the magnetic characteristics of a magnetic recording medium and to improve the S/N thereof. CONSTITUTION:A first ground layer 2 is formed on a nonmagnetic substrate 1 and a second ground surface layer 3 is formed on this first ground layer 2. A magnetic layer 4 is thereafter formed on the second ground layer 3. Chromium is included in the first ground layer 3, chromium and molybdenum are included in the second ground layer 3 and cobalt and platinum are included in the magnetic layer 4. The first ground layer 2 is formed to have a film thickness larger than the film thickness of the ground layer 3. The concn. of molybdenum in the second ground layer 3 may be so determined as to increase in a direction toward the magnetic layer 4 from the nonmagnetic substrate. The magnetic layer 4 may be formed to further include molybdenum.
Patent JP-S58110522-A (JP)
Title: Agent for vasography
Inventor: TSUDA YOSHIO
IPC: A61K49/04
Filed: 1981-12-25
Abstract: PURPOSE:An agnet for vasography having low side effects, capable of adjusting osmotic pressure to a physiologically isotonic state, comprising a specific brominated perfluorocarbon, an emulsifying agent such as phospholipid of egg yolk, etc., and a specific emulsifying auxiliary. CONSTITUTION:5-100w/v% 6-7C brominated perfluorocarbon[e.g., BrCF2 (CF2)4CF2Br, etc.]containing 2 bromines atoms in the molecule is blended with 2-6w/v% emulsifying agent selected from phospholipid of egg yolk or phosholipid of soybean and/or a nonionic surface active agent of high polymer (e.g., polyoxyethylene polyoxypropylene copolymer, etc.) having a molecular weight of about 2,000-20,000 and 0.001-0.1w/v% emulsifying auxiliary consisting of 8- 22C fatty acid ester (e.g., capric acid, caprylic acid, etc.) or fatty acid salt or fatty acid monoglyceride, and the blend is adjusted to physiologically isotonic state with a highly isotonic electrolytic solution, to give an agent for vasography having particle diameters of 0.05-0.4mu. A required amount of the agent can be fed depending upon the purpose.
Patent JP-H0263081-A (JP)
Title: Developing device
Inventor: NAKAGAWA HITOSHI
IPC: G03G15/08
Filed: 1988-08-30
Abstract: PURPOSE:To all scrape away an old developer made to adhere to a sleeve and to prevent the occurrence of a fog, density lowering in long-term use, etc., by providing a member which abuts on a non-magnetic member (the sleeve) mounted near a regulating board member. CONSTITUTION:In a vessel 4, a blade 20 abutting on the sleeve 7 is provided in the longitudinal direction of the sleeve 7. The developer which was once carried on the sleeve 7 and remains without being used for development on a latent image carrier is brought into contact with the blade 20 and scraped away from the sleeve 7 simultaneously when the sleeve 7 is rotated. Then, a fresh developer conveyed by an agitating mechanism 10 is carried onto the surface of the sleeve 7 and is formed into a thin layer by a blade 9. Therefore a fresh developer layer is evenly formed on the sleeve 7 and development on the latent image carrier is smoothly performed. Thus, the occurrence of a fog and long-term density lowering is prevented.
Patent JP-S6194856-A (JP)
Title: Fitting structure of head rest in small car
Inventor: AKIYAMA SHIGERU
IPC: B60R21/055
Filed: 1984-10-15
Abstract: PURPOSE:To obtain the simple and rigid fitting structure of a head rest by forming seating and cargo compartments by a division extended transversely and providing the head rest thereon. CONSTITUTION:An upper body 2 is monolithically formed with resin and comprises a surrounding wall 2a, a front pillar 2b, a rear side part 2c and a roof 2d. Also, a lower body 3 is monolithically formed with resin, consisting of a surrounding wall 3a, a foot rest 3b, a seat 3c and a cargo space 3d. The lower end of a stay 10 is connected to a fitting plate 13 and a reinforcement 14 fitted to the inner side of a division 7, and a heat rest is provided on the top of the stay 10.
Patent JP-H0381364-A (JP)
Title: Polyamide resin composition for filament and filament made therefrom
Inventor: DEGUCHI RYUICHI
IPC: C08L77/00
Filed: 1989-08-24
Abstract: PURPOSE:To provide a polyamide resin composition which yields mono and multifilaments excellent in strength, elongation, rigidity, drawability, thermal shrinkage, dimensional stability, etc., by compounding a polyamide resin with a specified amount of a layered silicate. CONSTITUTION:The title composition comprises 100 pts.wt. polyamide resin, e.g. nylon 6, and 0.05-30 pts.wt. layered silicate, e.g. montmorillonite. When a multilayered clayey mineral is used as the silicate, this composition can be prepared by bringing the silicate into contact with a swelling agent, such as octadecylamine, 12-aminododecanoic acid or epsilon-caprolactam, to widen the gap between the layers themselves to thereby facilitate the incorporation of polyamide monomers, mixing the resultant silicate with the monomers, and polymerizing the monomers. Filaments produced by spinning the obtained composition are suitably used in producing fishlines, ropes, fibers for apparel use, etc.
Patent JP-H0544112-A (JP)
Title: Crack-containing carbon fiber and its production
Inventor: OSAKI TAKASHI
IPC: D01F11/16
Filed: 1991-08-01
Abstract: PURPOSE:To obtain the subject fiber capable of rapidly taking out guest molecules, etc., from an intercalation compound composed of carbon fiber having condensed annular carbon planes oriented along a fiber axis, bursting the intercalation compound from the interior and inserting the guest material into the graphite crystal planes in a short time. CONSTITUTION:Carbon fiber having <=3mu diameter and condensed annular carbon planes 2 oriented along the fiber axis is used as a host and anhydrous ferric chloride, etc., are used as a guest. Both are kept so as not to mutually mix. A vessel is then charged therewith and evacuated to a vacuum. The interior of the vessel is subsequently replaced with chlorine atmosphere and hermetically sealed. The hermetically sealed vessel is then heat-treated at 300 deg.C in an electric furnace for 24hr to form an intercalation compound, which is then introduced into water and ultrasonically treated for 5min to rapidly take out the guest molecules or guest atoms from the intercalation compound and burst the intercalation compound from its interior. Thereby, the objective crack-containing carbon fiber having cracks 1 extending from the interior to the outer peripheral part along the fiber axis (A), <=10X maximum diameter thereof and <=200mu length is obtained.
Patent JP-S6195691-A (JP)
Title: Duplicating device of video signal recording media
Inventor: KAWAKAMI KAZUKUNI
IPC: H04N9/81
Filed: 1984-10-17
Abstract: PURPOSE:To carry out dubbing with a simple operation while a video is monitored by synchronizing the discrimination for synchronization, being line- sequential again and recording to another magnetic recording media after a line sequential color difference signal is synchronized and reproduced to a monitor. CONSTITUTION:For a color difference signal out of video signals recorded on a magnetic disk 12, a color difference line sequential system, where two kinds alternately repeat for every horizontal scanning, is adopted. A line sequential color difference signal is discriminated at a discriminating circuit, a discriminating signal PS is inputted to a terminal 56 and a TV signal is formed in accordance with a video signal at a line sequential synchronizing circuit. A video signal is displayed at a monitor 106. A change-over switch 108 is operated in response to a signal PS, operated so that a color difference signal, which will not pass through a delay circuit in the synchronizing circuit, may be supplied to an FM modulator 110, and a synchronized color difference signal is made line-sequential again. After that, a video signal is recorded to a non- recorded disk 12.
Patent JP-H0646254-A (JP)
Title: Hand scanner
Inventor: IMOTO KUNIO
IPC: H04N1/40
Filed: 1992-07-23
Abstract: PURPOSE:To realize the hand scanner not affected by dispersion in the subscanning speed. CONSTITUTION:A resulting output voltage amplified by each element of a sensor cell 1 by a prescribed amplification factor in the calibration operation mode is converted into a digital value at an A/D converter 3, a correction section 6 calculates a 1st correction coefficient and it is stored in a RAM 8. In the case of reading an original, a speed detection section 7 detects the subscanning speed based on a period of an output pulse from an encoder, a 2nd correction coefficient is calculated, a D/A converter 4 converts it into an analog quantity to control a variable amplification factor amplifier 2. Thus, the effect of the subscanning speed is corrected from the amplified voltage and it corresponds to a prescribed storage time. Shading correction is conducted also by converting an output of the variable amplification factor amplifier 2 into a digital quantity by the A/D converter 3 and using the correction section 6 to correct the quantity with the 1st correction coefficient read from the RAM 8.
Patent JP-H0963619-A (JP)
Title: Fuel reforming apparatus for fuel cell power generating apparatus and drive method thereof
Inventor: IWASA NOBUHIRO
IPC: H01M8/06
Filed: 1995-08-25
Abstract: PROBLEM TO BE SOLVED: To make a combustion gas flow almost evenly in a combustion furnace at the starting and temperature rise time. SOLUTION: Air 2 for combustion is used for a fuel reforming apparatus 1. The supply amount of air 2 for combustion to be supplied to an air inlet 54 of a burner 5 is set to 2 in theoretical air-fuel ratio value to the supply amount of a fuel 5a, which is a raw fuel, in the starting condition and also in the drive condition of the fuel reforming apparatus 1 in a temperature rise state. The supply amount of air 2 for combustion in the drive condition in which electricity generating operation of the fuel cell power generating apparatus is made possible is completely the same as that in the case a conventional fuel reforming apparatus is employed.
Patent JP-H1195547-A (JP)
Title: Development method
Inventor: KOGA YOSHIRO
IPC: G03G13/08
Filed: 1998-07-31
Abstract: PROBLEM TO BE SOLVED: To provide a development method which is capable of electrifying toner to a specific polarity steadily, is suitable for developing the magnetic toner into a high resolution image, and is capable of developing the magnetic toner by pressure-contact. SOLUTION: In the development method for forming the toner 8 into a thin layer on a toner carrier 9 by means of an elastic blade 13 and developing the toner 8 on the toner carrier 9 to a latent-image carrier 1, the toner 8 is spherical, and rolls and is electrified on the toner carrier 9 by the elastic blade 13, and the toner carrier 9 is in pressure contact with the latent-image carrier 1. Also, the toner carrier 9 has a magnetic-field generation layer 22 on its surface, the toner 8 is magnetic, and the film thickness of the magnetic-substance generation layer is 100 μm or less.
Patent JP-H0265457-A (JP)
Title: Picture reader
Inventor: UDAGAWA YUTAKA
IPC: H04N1/04
Filed: 1988-08-31
Abstract: PURPOSE:To read a nontransmission part of a transmission original optionally and to attain excellent read to all originals by providing a means switching optionally lighting/extinguishing of a light source for lighting a reflection original. CONSTITUTION:When a transmission original lighting light source 90 lights up a transmission original to read its picture, a changeover means (microprocessor) switches the lighting/extinguishing of the light source 19 for reflection original lighting to light up the transmission original optionally. Thus, if the transmission original includes the nontransmission part, the light source of the required original is led to a read means 18 in details by the light of the reflection original lighting light source 19 and it is not required to light the reflection original lighting light source at all times in the case of reading the transmission original. Thus, excellent picture read is attained independently of the kind of the original and the power consumption is reduced and the service life of the light source is extended.
Patent JP-S59106700-A (JP)
Inventor: MIZUTANI TSUTOMU
IPC: E21D9/12
Filed: 1982-12-10
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-H0499530-A (JP)
Title: Electric hot-water heater
Inventor: YOKONO MASAHIRO
IPC: A47J41/00
Filed: 1990-08-17
Abstract: PURPOSE:To easily execute the alignment for placing a vessel at the time of pouring hot water by providing a light source for irradiating the outside of the vessel body, and setting its irradiated direction to almost the same direction as the hot water pouring direction from a hot water pouring port. CONSTITUTION:A light source 12 for irradiating the outside of a vessel body is placed adjacently to a hot water pouring port 7, and turned on and off by a second switch 13. A condensing member 14 consists of an illuminating material and has a lens function for condensing an irradiation light from the light source 12. The direction in which the irradiation light from the light source 12 passes through the condensing member 14 and irradiates the outside of the vessel body is set to almost the same direction as the hot water pouting direction to the outside of the vessel body of hot water. At the time of placing a vessel 8 on the vessel body installing surface and pouring hot water therein, first of all, the light source 12 is turned on by operating a second switch 13, and the vessel is placed so that the center of the bottom face of the vessel 8 becomes almost the same as the center of the part of the installing surface irradiated with its irradiation light, and thereafter, a pump 5 is operated by operating an operating control 10, and a liquid can be poured surely into the vessel 8.