baber/WOPTO huggingface dataset:
Patent JP-S61260044-A (JP)
Title: Optical resolution of (+-)-1-(2-naphthyl)ethylamine
Inventor: NOHIRA HIROYUKI
IPC: C07C211/30
Filed: 1985-05-13
Abstract: PURPOSE:To enable the optical resolution of the titled compound easily in high efficiency, by using an optically active (2R,3R)-3-(2-aminophenylthio)-2- hydroxy-3-(4-methoxyphenyl)-propionic acid as a resolution agent. CONSTITUTION:The 1-(2-naphthyl)ethylamine (2-NEA) of formula I is made to react with an optically active (2R,3R)-3-(2-aminophenylthio)-2-hydroxy-3-(4- methoxyphenyl)-propionic acid (APA) of formula II as a resolution agent preferably in a mixture of acetone and water. A racemic acid, especially an optically active 2-NEA useful as an optical resolution agent of the acid component of synthetic pyrethroid can be produced easily and efficiently by this process.
Patent JP-H11293516-A (JP)
Title: Superfine acrylic fiber having water absorption properties, its sheet-like product, and split acrylic fiber having water absorption properties
Inventor: OISHI SEIZO
IPC: D01F6/18
Filed: 1998-04-13
Abstract: PROBLEM TO BE SOLVED: To provide a superfine acrylic fiber having water absorbability and capable of retaining enough wet web strength to exhibit excellent processability in wet paper making process, a sheet-like product using the same and fibers therefor, and a split acrylic fiber having water absorbability. SOLUTION: This superfine acrylic fiber is made of a polymer having (0.2-9 m mol/g) hydrophilic functional groups, and has a freeness of <=300 ml and a fineness of <=0.01 dtex. This splitting acrylic fiber having water absorption power has the internal structure of stripe like phase separation between an acrylonitrile-based polymer and a polymer incompatible with the same and is made of a fiber-forming polymer having (0.2-9 m mol/g) hydrophilic functional groups.
Patent JP-H08297258-A (JP)
Title: Bearing device
Inventor: YOSHINO ONORI
IPC: G02B26/12
Filed: 1995-04-25
Abstract: PURPOSE: To reduce a noise and to prolong the life in a bearing even in high speed rotation by non-contact supporting a rotary body in the axial direction and the radial direction also. CONSTITUTION: A rotary shaft 40 is hydraulically born with a radial bearing member 16 through lubricant, and a rotor 60 is magnetically born with a housing 10 by combinations of a core 17 and a driving magnet 63, and a U-shaped ring 65 and a magnetic bearing magnet 11. Usually, pressure inside the bearing becomes low by centrifugal force due to the high speed rotation, and the lubricant is scattered to an outer peripheral side, and the noise and vibration occur due to the reduction of the lubricant.  However, outdoor air flows in through at least one opening part 100 penetrated through the rotor 60 and arranged on a position close to the rotary shaft 40 of the rotor 60, and the pressure inside the bearing becomes near to outside pressure, and a difference of pressure between an outer peripheral part and an inner peripheral part is eliminated, and the scattering of the lubricant is reduced, and the noise is reduced and the life is prolonged in the bearing.
Patent JP-H03297059-A (JP)
Title: Silver oxide battery
Inventor: SENOO KIKUO
IPC: H01M4/62
Filed: 1990-04-17
Abstract: PURPOSE:To decrease the amount of graphite without causing increment of the internal resistance and enhancing the capacity of a battery by using a graphite having a specific surface area and apparent density which are in the specified amounts. CONSTITUTION:A pos. electrode black mix 1 is prepared by mixing silver oxide with graphite, and the mixture is molded by pressure into columnar form to be put fully in the bottom part of a pos. electrode case 2. Therein graphite is used as an electroconduction aid, having a specific surface area of 100m<2>/g or more and an apparent density of 0.1g/cc or more. The larger specific area the graphite has, the smaller become the particle diameters, so that the number of particles increases in the case of the same quantity, and therefore, the same electroconductivity is obtained with less amount, and further because the apparent density does not vary substantially, so that a molded article of pos. electrode black mix 1 involves lesser change in the density. Thereby the adding amount of graphite can be decreased without increasing the internal resistance, in the same size battery, and the capacity of battery can be increased.
Patent JP-H05298733-A (JP)
Title: Objective cleaning mechanism of optical information recording/reproducing apparatus
Inventor: MURAOKA OSHI
IPC: G11B7/12
Filed: 1992-04-21
Abstract: PURPOSE:To provide an objective-cleaning mechanism, in which a foreign matter stuck to an objective lens can be eliminated easily, without removing a body of equipment each time in an optical information recording/reproducing apparatus having an optical system contained in the body of equipment. CONSTITUTION:A cleaning mechanism 6 is provided in the position of a body of equipment 2 facing the objective lens of an optical system. Thus, a foreign matter stuck to the objective lens can be eliminated easily and an efficient cleaning effect can be expected.
Patent JP-S58219256-A (JP)
Title: Thermoplastic resin composition
Inventor: NANBU JIYUNJI
IPC: C08L33/00
Filed: 1982-06-15
Abstract: PURPOSE:To prepare the titled composition having excellent weld strength and suitable for molding use, by compounding an epoxy resin and/or a phenoxy resin with a mixture of a polycarbonate resin and a rubber-modified styrene-maleic anhydride copolymer resin. CONSTITUTION:The objective composition can be prepared by mixing (A) 45- 94.9wt% of a polycarbonate resin having the recurring unit of formula I , (B) 5-40wt% of a rubber-modified styrene-maleic anhydride copolymer, and (C) 0.1-15wt% of an epoxy resin, e.g. a bisphenol-type epoxy resin of formula II(R is H or methyl; l is 0-100,000), etc. and/or a phenoxy resin of formula III(n is 0-20) (having a viscosity of 2,800-10,000cp as a methyl ethyl ketone solution containing 40% solid content). The mixing is carried out, e.g. by kneading under melting.
Patent JP-S585505-A (JP)
Title: Oil pressure cylinder with oil reservoir
Inventor: NAKAMURA TAKASHI
IPC: F15B15/22
Filed: 1981-06-29
Abstract: PURPOSE:To reduce the size and weight of the stem of an unload valve by providing a cylinder head cover with a butting projection for opening the unload valve when a piston approaches the end of a low pressure chamber side. CONSTITUTION:A piston 5 which is slidably inserted in a cylinder main body 1 partitions said body 1 into a high pressure chamber (a) and a low pressure chamber (b), which communicates with an oil sump t of a cylinder head cover 3 through an open port at the tip of the cylinder main body. When a flange piece 17 on the tip of a valve rod 14 of an unload valve V provided on a piston 5 is joined with a butting projection 19 formed on the cylinder head cover 3, pressured oil in the high pressure chamber (a) flows into the low pressure chamber (b) through a communication groove 18, and generation of surge pressure in the high pressure chamber (a) is prevented.
Patent JP-H08298378-A (JP)
Title: Production of multilayer printed wiring board
Inventor: OTO NORIYASU
IPC: H05K3/46
Filed: 1995-04-26
Abstract: PURPOSE: To defoam a resin efficiently while suppressing the resin flow by superposing required number of prepregs on the upper and lower surfaces of an inner layer circuit board and applying a metal foil to the opposite sides thereof before conducting hot press under specified conditions. CONSTITUTION: Required number of prepregs, produced by impregnating a basic material with a resin varnish having lowest fusion viscosity of 5,000-20,000 poise at a temperature rise rate of 2-3 deg.C/min, are superposed on the upper and lower surfaces of an inner layer circuit board. A metal foil is then applied to the opposite sides thereof before conducting hot press. The pressure is set at zero until the temperature of the prepreg reaches 50-60 deg.C and increased at a rate of 1-1.5kg/cm<2> /min until the temperature reaches 130-140 deg.C. After the pressure reaches at 25-45kg/cm<2> , hot press is conducted under a pressure of 5-10kg/cm<2> in an atmosphere of 50Torr or below. A temperature profile 2, a pressure profile 1 and a fusion viscosity profile 3 of resin being attained under such shaping conditions are shown on the graph.  With such a method, inperfect adhesion can be suppressed at the time of multilayer bonding.
Patent JP-S5624842-A (JP)
Title: Wrong pattern generating circuit
Inventor: SUGIYAMA YASUO
IPC: H04L1/24
Filed: 1979-08-06
Abstract: PURPOSE:To obtain a wrong pattern generating circuit having a good random performance, by using the multiple pseudo random signal generator. CONSTITUTION:The logics (00)(01)(10)(11) of flip flop 62 corresponding to flip flop 61 are made to correspond to four units of dimensions 0, gamma, gamma<2> and 1 respectively in order to have the feedback as shown in the figure. Thus the 4-dimension M-series pseudo random signal generator having the property polynomial h(x)= x<3>+x<2>+gammax+gamma<2> can be obtained. The patterns in a cycle of the series are 11gamma, gamma01, 0gamma1, gamma11, gammagamma2gamma<2>, gamma<2>0gamma<2> and 100 each. And with supply of the output of terminal Q' to AND gate 7, the output of gate 7 becomes 000, 010, 100, 000, 000, 010 and 011 each. Thus an output pattern suited to imitate an error rate of 25% is obtained.
Patent JP-S60245935-A (JP)
Title: Microwave oven
Inventor: HANATANI SAKIO
IPC: F24C7/02
Filed: 1984-05-18
Abstract: PURPOSE:To improve the degree of correctness of heating and simplify the structure of the range by a method wherein the amount of vapor in a heating chamber is detected to control a high-frequency supplying means and a fan in the microwave oven, in which the temperature of the heating chamber and the finishing condition of food to be heated are detected and indicated. CONSTITUTION:The temperature of air, comming out of the heating chamber 1 upon heating an oven, is detected by a temperature sensor 7 provided alone in a conventional duct 3 and whereby the ON and OFF operation of the heater is controlled. On the other hand, a sensitivity switching means is operated during stopping of operations of a high-frequency generating unit 13 and the high- frequency fan upon heating by high-frequency to increase the detecting sensitivity of the sensor 7 and detect vapor sucked into the convention duct 3 by the fan which is produced from the food to be heated. The finishing condition of the food is detected by the detecting signal to control the microwave heating. According to this constitution, the heating of the food-stuff may be effected properly.
Patent JP-H11296147-A (JP)
Title: Liquid crystal driving circuit
Inventor: NAKAO TOMOAKI
IPC: G09G3/20
Filed: 1998-04-13
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal driving circuit in which the increases in the circuit size and the cost are prevented even though the number of gradation levels is increased while a liquid crystal panel is driven in multi-levels. SOLUTION: A charging capacitor 4 and a distributing capacitor 5 have respective first and second electrodes. The first electrodes of the capacitors 4 and 5 are connected together. A switch 6 is provided to disconnect the connection of the second electrodes of the capacitors 4 and 5. A selection switch 3 is provided to select or disconnect first and second reference voltages for the second electrode of the capacitor 4. An operational amplifier 13 is provided to output an analog signal for a multi-level gradation display in accordance with the amount of the electrode charge of the capacitor 5 and the second reference voltage. A controller 15 alternatively controls the switches 6 and 3 by digital signals for the display.
Patent JP-S63267096-A (JP)
Title: Testing device for remote controller
Inventor: MORIYA SUSUMU
IPC: H04Q9/00
Filed: 1987-04-24
Abstract: PURPOSE:To improve the reliability of a device by connecting a testing device which can be switched to a learning mode/testing mode to a serial bus line. CONSTITUTION:The testing device 4 which can be switched to the learning mode/testing mode is connected to the serial bus line 100. According to the learning mode, a signal transmitted from a light transmitting and receiving unit 3a and an automatic switching unit 3b is stored, a signal transmitted from the simulated unit 5 of a remote station 1 is monitored according to the testing mode and the data at the time of the learning mode and the testing mode is compared. Accordingly, when they do not coincide, the failure of the light transmitting and receiving unit or the like in a near station 2 can be recognized. Thereby, the change of the operation of a function unit 3 can be easily coped with, a human error such as a simple overlock is eliminated to improve the reliability of the device.
Patent JP-H07275142-A (JP)
Title: Mounting tool for undercounter basin
Inventor: SHIRAI YASUHIRO
IPC: A47K1/05
Filed: 1994-04-04
Abstract: PURPOSE:To perform the post-fitting of a basin after a counter is installed and to execute the mounting work of the basin even by a single worker. CONSTITUTION:This mounting tool 1 is constituted of a receiving member 2, a hanging member 3 and a presser member 4. The insertion part 3a of the hanging member 3 is inserted to the insertion hole 2a of the receiving member 2 fixed on the lower plane of the counter. A suspending part 3b is formed by folding following the insertion part 3a, and moreover. it is bent a little, which forms a bolt part 3c. The presser member 4 inserts the bolt part 3c to the opening hole 4b of a base part 4a, and also, it is loaded on the bolt part 3c by enagaging with a nut 6. A supporting part 4c is provided on one terminal of the presser member 4, and an erecting part 4d on the other terminal of it, respectively, and since the centroid of the presser part 4 is set so as to be set nearer to the supporting part 4c for the opening hole 3a, a stable posture can be obtained in a state where the tip of the supporting part 4 is set at the lowest position.
Patent JP-H07280003-A (JP)
Title: Return spring of brake for vehicle
Inventor: WATANABE GIICHI
IPC: F16D65/09
Filed: 1994-04-05
Abstract: PURPOSE:To provide simple structure on which a return spring is easily amounted since the return spring was interfered and there was difficulty in mounting the return spring because the return spring was provided close to a hole for mounting a cylinder and a brake in the brake of a vehicle and also close to a hub on the vehicle side. CONSTITUTION:A return spring 20 has two wings 21, 22, and a mounting hole so formed as to twist a plate material nearly at the center between the first wing 21 and the second wing 22 and a hook part is provided at the ends of both wings 21, 22. The return spring is mounted by providing a mounting pin 41 provided in a bracket 40 and fixation pins 34 for hanging both wings 21, 22 in the web 31 of a brake shoe.
Patent JP-H06130248-A (JP)
Title: Method for connecting optical waveguide and optical fiber array
Inventor: OTA KAZUYOSHI
IPC: G02B6/12
Filed: 1991-04-08
Abstract: PURPOSE:To easily connect an optical waveguide and an optical fiber array by observing a connecting part by means of a long focus stereoscopic microscope from diagonally above the optical fiber array and connecting the waveguide and the array upon confirmation that the visible rays on an incident side and exit side exist on a concentrical circle. CONSTITUTION:The waveguide 1 formed by providing an SiO2 clad layer on an Si substrate, constituting an 8-branch optical waveguide of TiO2-doped SiO2 and covering the upper part thereof with SiO2. An He-Ne laser output is made incident from the incident side of the waveguide and two pieces of optical fibers 5 at both ends of the optical fiber array 2 and the juncture is observed via quartz glass in the upper part of the optical fiber array 2 diagonally from above the optical fiber array 2 by the stereoscopic microscope 3. The respective axes of a fine adjustment base are finely adjusted while the rays emitted from two pieces of the optical fibers 5 at both ends of the optical fiber array 2 align to the spot in the waveguide part on the exit end face of the waveguide corresponding thereto on the concentrical circle.
Patent JP-H041759-A (JP)
Title: Image recorder
Inventor: SHIRAI MASAHIRO
IPC: G03B27/46
Filed: 1990-04-19
Abstract: PURPOSE:To obviate the spoiling of photographed films by operating a warning means and stopping development after the developing state is maintained for the period of the time required for the final exposed image to complete the development processing when detection signals are detected after driving of a cutter. CONSTITUTION:The warning means 31 is operated and the development is stopped after the developing state is maintained for the period of the time required for the final exposed image to complete the development processing 16 when the detection signals are detected from detecting means P1, P2 after driving of the cutter 14. A signal for an exchange of the cutter or the like is, therefore, emitting even in the case of the outbreak of such a trouble that the film fails to be cut by the wear or corrosion of the cutter blade. The operator is able to make the development processing without spoiling the films photographed thus far and the wasteful consumption of the films is prevented in this way.
Patent JP-H09268871-A (JP)
Title: Shaft mucker
Inventor: SAKAE TAKESHI
IPC: E21D1/03
Filed: 1996-04-01
Abstract: PROBLEM TO BE SOLVED: To enable shaft construction economically and in a short term of work by installing a central post in the center of a place planned to be shaft- mucked, and fitting a drilling device to a rotary arm adapted to freely rotate and lower, which is fitted to the central post. SOLUTION: A place planned to be shaft-mucked is excavated to make a hole in the center, and a steel pipe is inserted in the hole to install a central post 1. A cylindrical rotary driving device 21 is fitted to the central post 1, and a branch-like rotary arm 2 is projected from the rotary driving device. Further, the central post 1 is provided with an elevating device 22 adapted to elevate like a measuring worm by interposing a vertical jack between upper and lower rings and fastening the central post 1 by upper and lower rings mutually. Further, the rotary arm 2 is provided with an excavating device 3 adapted to excavate sediment and rock mass by rotation of a cutter drum 31 fitted to a horizontal shaft. The excavating device 3 fitted to the rotary arm 2 performs rotation round the central post 1 and lowering along the central post 1, thereby spirally excavating the shaft base.
Patent JP-S5528637-A (JP)
Title: Automatic gain control unit
Inventor: TAGUCHI SHIGERU
IPC: H03G3/30
Filed: 1978-08-21
Abstract: PURPOSE:To enable to automatically restore the control system from open to closed loop, by detecting the level of the input pilot signal of the variable gain control circuit with the selection circuit when the level of the pilot signal is in failure. CONSTITUTION:The level of the pilot signal picked up from the variable gain circuit 12 is fed to the circuit 12 via the memory circuit 21 to control the gain of the circuit 12. Further, the pilot level detection circuit 17 detects the level of the pilot signal of the output of the circuit 12 when the level of the pilot signal is normal and within the predetermined range, and detects the level of the input pilot signal of the circuit 12 with the selection circuit 26 when the level of the pilot signal is not normal and out of the predetermined range. Thus, when the pilot signal is restored from abnormal to normal level, only the level of the input pilot signal can automatically restore the control system from open to closed loop.
Patent JP-H11353637-A (JP)
Title: Acicular hematite particle powder for nonmagnetic base layer and magnetic recording medium having nonmagnetic base layer using the acicular hematite particle powder
Inventor: HAYASHI KAZUYUKI
IPC: G11B5/73
Filed: 1999-04-09
Abstract: PROBLEM TO BE SOLVED: To obtain acicular hematite particle powder suitable for nonmagnetic particle powder of a nonmagnetic base layer of a magnetic recording medium which has small transmittance for light, smooth surface, large strength and excellent durability and which suppresses deterioration in the magnetic characteristics. SOLUTION: This hematite particle powder is obtd. by dissolving an aq. suspension of an acicular hematite particle powder with an acid under conditions of >=1.0 N acid concn., <=3.0 pH, and 20 to 100 deg.C temp. range, then controlling the pH to >=13, and heat treating at 80 to 103 deg.C. The obtd. powder has 0.004 to 0.295 μm average major axial length, 35.9 to 212 m<2> /g BET specific surface area, >=8 pH of the powder, <=300 ppm soluble sodium salts amt. expressed in terms of Na, <=150 ppm soluble sulfates amt. expressed in terms of SO4 , and 0.05 to 50 wt.% aluminum expressed in terms of Al in the particle.
Patent JP-S60244826-A (JP)
Title: Temperature sensor
Inventor: SUGANO TADAO
IPC: G01K7/22
Filed: 1984-05-21
Abstract: PURPOSE:To facilitate manufacture by flanging the end part of a sensor head to which a sensor chip for temperature detection and a sensor metallic fixture are fixed, and joining the flange fixedly to the flange at the end part of a cylindrical case. CONSTITUTION:The sensor chip 6 is fixed to a sensor head 15 with a joint layer 7. The sensor chip 6 consists of an insulating substrate 3, electrode film 4, and temperature sensing resistor film 5. Further, the sensor metallic fixture 9 is fixed to the sensor head 15. An insulating plate 8 is fitted to the sensor metallic fixture 9. A groove or hole 12 for guiding a sensor lead wire 11 is provided to the insulating plate 8. The sensor head 5 is provided with a flange, which is joined with the flange of a cylindrical case 16. The sensor head 15 is brought into contact with the bottom part of a cooking container 1 to detect the temperature.
Patent JP-H01270893-A (JP)
Title: Drum type washing machine
Inventor: SUNAKAWA AKIRA
IPC: D06F21/04
Filed: 1988-04-25
Abstract: PURPOSE:To improve assembly operability and to simplify the constitution of a tub by composing a tub frame of a receiving member, which loads the tub and receives the load of the tub, and a fixing member to fix the tub. CONSTITUTION:A tub frame 5 is composed of one pair of receiving members 6, 6 and fixing members 7, 7 and the receiving member 6 and fixing member 7 are linked by a screw 8 stopper. Then, the tub frame 5 is assembled. A motor supporting board 9 is screw 10-stopped and a driving motor 11 is fit. After that, a fitting part 6d of the receiving member 6 is fit and mounted to a rod 4 so that the tub frame 5 can be loaded on a suspension 2 which is integrated to a bottom board 1. Successively, a tub 12 is loaded on receiving parts 6b so as to be inserted to an interval between the receiving members 6 from the upper direction of the tub frame 5 and further, projecting parts 13 for tub 12 positioning are fit to a notch part 7c of the fixing member 7. Then, the screws 5 are inserted through a through-hole 7d of the fixing member 7, fastened and fixed to a screw hole 14a in a projecting part 14 of the tub 12.
Patent JP-H06304949-A (JP)
Title: Mold for ring-shaped member composed of thermoplastic elastomer
Inventor: KAJIWARA KEIZABUROU
IPC: B29K19/00
Filed: 1993-04-28
Abstract: PURPOSE:To provide a mold suitable for molding a ring-shaped member. CONSTITUTION:A ring-shaped cavity 23 is formed between mold members 33, 34 and recessed and protruding fitting parts 41, 42 fitted each other are concentrically formed to the inner and outer peripheral side parts of the annular cavity 23 so as to hold the cavity 23 therebetween.