baber/WOPTO huggingface dataset:
Patent JP-S5930061-A (JP)
Title: Colorimetric determination of trace metal
Inventor: YAMASATO FUJIO
IPC: G01N31/00
Filed: 1982-08-12
Abstract: PURPOSE:To improve the accuracy of analysis, by using a surfactant as masking agent in the colorimetric determination of zinc or nickel employing a 2-pyridylazoaminophenol derivative or the salt thereof as color former. CONSTITUTION:In the colorimetric determination of zinc or nickel employing a 2-pyridylazoaminophenol derivative or the salt thereof represented by formula [I ], a surfactant is highly effective as a masking agent of a specified metal. The surfactant to be used, though not particularly specified, is preferably clearly soluble in an optimal range of pH4-10 of the color former. Regarding zinc, a nonionic, cationic or ampholytic surfactant inhibits the color formation of iron, copper, cobalt and nickel without blocking the color formation of zinc. Regarding nickel, when used together with a conventional masking agent for iron, copper, cobalt and zinc, the anionic surfactant inhibits the color formation of iron, copper, cobalt and zinc without blocking the color formation of nickel.
Patent JP-S63304363-A (JP)
Title: Character input device
Inventor: KANAMARU TOMOKO
IPC: G06F17/22
Filed: 1987-06-04
Abstract: PURPOSE:To retrieve a KANJI (Chinese character) having a undefined radical by retrieving the radical based on the number of strokes. CONSTITUTION:For instance, the number of radical strokes '4' is supplied via an input means 1b and a stroke number/radical converting part 4 retrieves the radical of the input stroke number '4' and outputs it to a control part 5. The part 5 sends the radical corresponding to the stroke number '4' to a display part 2 to display it on a display device. An operator selects a desired radical via a radical selection means 1c and the part 5 outputs selected radical information to a radical/KANJI converting part 3. The part 3 retrieves the KANJI corresponding to the selected radical and displays it on the part 2 via the part 5. Thus it is possible to easily retrieve the KANJI even though its radical is not defined.
Patent JP-S5765277-A (JP)
Title: Protective device for overcurrent in pulse width modulation type bridge inverter
Inventor: YOKOI YASUO
IPC: H02M7/48
Filed: 1980-10-06
Abstract: PURPOSE:To prevent the breakdown of a switching element of the inverter, and to obtain stable operation by using an overcurrent control pulse width modulation system, employing a gate turn-off type thyristor as the switching element and mounting an overcurrent protective circuit. CONSTITUTION:DC voltage is obtained by means of a rectifying circuit consisting of diodes D7-D12 and a capacitor C from input terminals R, S, T connected to a commercial three-phase AC power supply. The bridge inverter is constituted in such a manner that the terminals J, K of a two terminal circuit 1 for protecting overcurrents are connected to a DC supply line, and a parallel circuit of the gate turn-off type thyristors GTO1-GTO6 and feedback diodes D1-D6 is connected between the terminal K at the output side of the two terminal circuit 1 and three-phase AC  output terminals U, V, W. Each gate turn-off type thyristor GTO1-GTO6 is severally controlled by means of ignition control circuits A1-A6.
Patent JP-2000326084-A (JP)
Title: Method and device for curvature adjustment of variable curvature mirror
Inventor: NAKAMURA ATSUSHI
IPC: B23K26/046
Filed: 1999-05-20
Abstract: PROBLEM TO BE SOLVED: To realize stabilized laser beam machining by freely changing a curvature of a reflecting face of a bend mirror and appropriately controlling a spot diameter of one converging lens. SOLUTION: When a laser beam LB is reflected by a variable curvature mirror 21 and is converged by a converging lens in a laser beam machining head, a reflecting face M of the variable curvature mirror 21 is made a recessed face and has a thin wall disk shape, a gas pressure is introduced into a sealable gas tight pressure chamber 25 arranged to the rear face of the variable curvature mirror 21 from a gas supply passage 29 so as to increase in a positive pressure, the curvature of the reflection face M is changed from a recessed face to a projecting face. A changing quantity of the curvature of the reflection face M is adjusted by controlling the gas pressure at positive pressure.  By freely changing the curvature of the reflection face M of the variable curvature mirror 21, the light wave face curvature accompanying transmission of the laser beam LB is changed to suppress a changing quantity so that the focus position for a work is stabilized.
Patent JP-H11315568-A (JP)
Title: Holding construction for shower head
Inventor: NAKAMURA KAYOKO
IPC: E03C1/06
Filed: 1998-05-06
Abstract: PROBLEM TO BE SOLVED: To solve troubles in a shower head such as backlash of the shower head inside a shower hook or, in some case, the shower head is disengaged from the shower hook when a water pressure is suddenly applied to a shower head or a shower hose has a peculiar habit while the shower head is hooked to a shower hook or retained. SOLUTION: A shower head 10 is inserted to an insertion hole 24 of a shower hook 22 for retaining. In this case, a linking recessed portion 36 is provided in the shower hook and a linking projection 42 in the shower head 10 respectively and they are linked. Then, a sprig member 49 for performing exerting effect in a direction of linkage between a linking projection 42 and a linking recess 36 is provided. Also, a release operation button 44 is provided for releasing the linkage between the linking projection 42 and linking recess 36 by giving an elastic deformation to the spring member 49.
Patent JP-S63304175-A (JP)
Title: Settling characteristic measuring method
Inventor: HIWADA KIYOYASU
IPC: G01R29/02
Filed: 1987-06-04
Abstract: PURPOSE:To execute the measurement of a settling characteristic with high accuracy by deriving an error portion due to the setting characteristic of a measuring system itself in a frequency area by using a pulse generator for generating an ideal waveform, and compensating a measured data of a signal to be measured, by said error portion. CONSTITUTION:A pulse of an ideal waveform of a flat pulse generator (FPG) 101 is given to a measuring system 100. The pulse passes through a transmission line 105, a sampler 107 and a digitizer 109, and a data is stored in a memory 111 in a form of a time series. By using its data as a reference data, a Fourier- transformation is executed by a CPU 113. It is compared with a Fourier- transformation of an ideal step waveform, and a transmission characteristic of the measuring system 100 is derived. Subsequently, an output signal of a DUT 103 for measuring a settling characteristic is measured by the measuring system 100 in the same way as an output signal of the FPG, and a data is stored in the memory 111 in a form of a time series. It is brought to a Fourier- transformation by the CPU 113.
Patent JP-H08333420-A (JP)
Title: Production of (meth)acrylic acid (co)polymer
Inventor: SASAKI YASUSHI
IPC: C08F6/06
Filed: 1995-06-07
Abstract: PURPOSE: To obtain a (meth)acrylic acid (co)polymer excellent in low- temperature stability without depositing Glauber's salt, etc., by removing the hydrogen peroxide being the polymerization initiator remaining in the system after the polymerization by decomposition with catalase. CONSTITUTION: (Meth)acrylic acid is polymerized or copolymerized with a monomer copolymerizable therewith in the presence of hydrogen peroxide as a polymerization initiator in an aqueous medium, and the hydrogen peroxide remaining in the reaction system is removed from the system by decomposition with catalase. According to this process, the remaining hydrogen peroxide is decomposed not by a conventional chemical method but by a biochemical method using catalase which is a kind of an enzyme which decomposes hydrogen peroxide, so that a (meth)acrylic acid (co)polymer having excellent low- temperature stability and not deteriorating in this effect even when used in combination with an antibacterial agent or an antimildew agent can be obtained without depositing glauber's salt etc.
Patent JP-H06345822-A (JP)
Title: Fluororesin for powder coating
Inventor: YASUMURA TAKASHI
IPC: C09D131/04
Filed: 1993-06-11
Abstract: PURPOSE:To obtain a fluororesin excellent in weather resistance, surface smoothness and storage stability and capable of being used for thermosetting powder coating. CONSTITUTION:This fluororesin is composed of monomer units of a fluorinated olefin, a fatty acid vinyl ester and a hydroxyalkylallyl ether and has 35-120 mgKOH/g hydroxyl value and >=50 deg.C softening temperature by viscoelastic measurement and 10000-30000 number-average molecular weight and 20000-70000 weight-average molecular weight based on measurement of gel permeation chromatography.
Patent JP-S5930552-A (JP)
Title: Image forming device
Inventor: TSUCHIYA HIROAKI
IPC: G03G15/043
Filed: 1982-08-13
Abstract: PURPOSE:To eliminate the need for filters and to deal with the diversification, etc. in a photosensitive material, by using a semiconductor color sensor as a detection means which detects the various densities of an original. CONSTITUTION:The original on an orginal placing plate 20 is irradiated with an original illumination lamp 21, and the reflected light exposes a photoreceptor 25 through mirrors 22, 23 and an imaging lens 24. A semiconductor color sensor 26 is provided in the optical path on the exit side of the lens 24, and the output thereof is supplied through a correction circuit for approximating the same to the spectral characteristic of the photoreceptor to a lighting circuit 28 for the lamp 21. The circuit 28 controls the lighting of the lamp 21 so that the light onto the photoreceptor 25 is kept always at a specified quantity. The output of the sensor is thus approximated to the spectral sensitivity characteristic of the photoreceptor without using any filter and the image having good quality is stably obtd.
Patent JP-S5264845-A (JP)
Title: Malfunction detecting unit of logical circuit
Inventor: SUZUKI HODOHISA
IPC: G06F11/00
Filed: 1975-11-26
Abstract: PURPOSE: To secure an assured detection of malfunction for logical circuit which performs cyclic computation of program through malfunction judgement by existence of input variation pulse when output variation pusse exists. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H0434480-A (JP)
Title: Developing unit
Inventor: FUKUCHI YUTAKA
IPC: G03G15/08
Filed: 1990-05-30
Abstract: PURPOSE:To detect the remaining amount of toner continuously at all times even when printing operation is not in process by displaying a toner deficient state and a toner near-end state with a combination of a toner concentration detection signal and a toner remaining amount detection signal and holding input data to a display means until the supplementation of toner is detected. CONSTITUTION:The detection signal of a toner concentration detecting means part 7 which detects the concentration of toner in a developer and the detection signal of a toner remaining amount detecting means 13 which detects the remaining amount of toner at a toner supplementation part are combined to display the toner deficient state and toner near-end state on a display means 26. The input data to the display means 26 is held by data holding means 20 and 21 until a toner supplementation detecting means 16 detects the supplementation of toner, so the remaining amount of toner can be displayed continuously at all times even when the printing operation is not in process. Thus, the accurate rest can be detected even when the printing operation is not in process.
Patent JP-H04340339-A (JP)
Title: Field winding slot for salient pole synchronous machine
Inventor: ETO HIROSHI
IPC: H02K1/16
Filed: 1991-05-16
Abstract: PURPOSE:To reduce the depth of slot and to increase the width of pole without varying the area of slot. CONSTITUTION:Two adjacent slots 3 are punched simultaneously with the opposite sides 1a, 1a of a pole 1, formed between thus punched slots 3, being in parallel with each other. Consequently, side face part 3a of the slot 3 is widened and the depth of the slot 3 is decreased thus enhancing the filling effect of field winding while furthermore availability of machine is enhanced by decreasing the width of a wedge supporting piece 2 and increasing the width of the pole 1.
Patent JP-H04230229-A (JP)
Title: Aromatic compound, production thereof and harmful organism controller comprising the same compound as active ingredient
Inventor: SHUDO AKIRA
IPC: C07C43/205
Filed: 1991-05-15
Abstract: PURPOSE:To obtain a new aromatic compound useful as a harmful organism controller, having excellent young hormone-like activity to insects. CONSTITUTION:A compound shown by formula I [R<1> is H, halogen, 1-4C (halo) alkyl, 1-3C (halo)alkoxy, CN, NO2 or adjoining two R1s form methylenedioxy which may be replaced; p is 1-5 ; R<2> is H, halogen or methyl; g is 1-3; R<3> is halogen or 1-3C alkyl; R<4> is H or 1-3C alkyl; R<5> is halogen, 1-3C (halo)alkyl, 1-3C (halo)alkoxy or adjoining two R<5>s form methylenedioxy which may be replaced; r is 1-5; X is O, S, CO, SO, SO2, NH or CH2; Y is O or 5] such as [2-chloro-1-(4-ethylbenzyloxy)-5-phenoxy]benzene. The compound is obtained by reacting a (thio) phenolic compound shown by formula II (M is alkali metal or H) with a compound shown by formula III (A is halogen).
Patent JP-2000325520-A (JP)
Title: Table tennis racket having hollow grip packed with synthetic resin foam
Inventor: SCHNEIDER MICHAEL
IPC: A63B60/06
Filed: 1999-05-21
Abstract: PROBLEM TO BE SOLVED: To obtain a table tennis racket which is light in weight, provides a good feed of hitting a ball and has a hollow grip packed with a synthetic resin foam substantially preventing the occurrence of the failure and peeling of grip component members accompanied with the fall onto a hard floor surface and a temperature change. SOLUTION: This table tennis racket includes a plywood base plate 1 which includes a grip part 2a and two divided grip shell members 3a and 3a which are adhered in superposition to the front surface and rear surface of the grip part 2a of the base plate 1. The grip part 2a is subjected to penetration machining relating to the positions corresponding to the inside of the two divided grip shell members 3a and 3a, by which the one continuous cavity 4a is shaped together with the two divided grip shell members 3a and 3a over the inside thereof with each other. This cavity 4a is integrally packed with the cured synthetic resin foam.
Patent JP-H036913-A (JP)
Title: Surface acoustic wave filter and mobile radio equipment using same
Inventor: OONUKI HIDEO
IPC: H03H9/64
Filed: 1989-06-05
Abstract: PURPOSE:To obtain a surface acoustic wave filter with small insertion loss, excellent frequency characteristic and small size by differentiating the electrode digit, mean value of interval of electrode digits, and distance with the adjacent electrode. CONSTITUTION:Input interdigital electrodes 2-1, 2-7, 7-2, 7-6 and 2-3, 2-5 are constituted the same and output interdigital electrodes 4-1, 4-6, and 4-2, 4-5 and 4-3, 4-4 are of the same constitution respectively. The electrode figure of the interdigital electrodes 2-1, 2-7 at the outermost side is selected least in comparison with that of the other interdigital electrodes and the mean value of the electrode digits interval is selected largest. Thus, the amplitude and phase of a surface acoustic wave converted by each interdigital electrode are selected differently. Then the excellent frequency characteristic as the while filter is obtained.
Patent JP-S62296325-A (JP)
Title: Seam welding process
Inventor: FURUTA TAKESHI
IPC: B23K11/00
Filed: 1986-06-17
Abstract: PURPOSE:To enable seam welding to be carried out nicely without sacrificing welding speed by seam welding under the specific initial welding pressure for the upward slope of a circular arc of a member and seam welding with increased welding pressure at the top of the circular arc for the downward slope of the circular arc of the member. CONSTITUTION:The upward slope of a circular arc is seam welded under the specific initial welding pressure P, set by a pressurizing means 16 as shown in the pressurization curve 1, the position is detected at the top of the circular arc and the pressurizing force is changed by switching an air circuit. Then, the downward slope of the circular arc is seam welded by increasing the pressure so as to substantially copensate reduced pressure. In this instance, the initial welding pressure P, which is to become substantial welding pressure at the top-most vertex B is set to the lowest limit, or in its vicinity, of the proper welding pressure range 12, and the substantial at starting welding point A and the substantial welding pressure at the top-most vertex B after pressure increase are respectively set to the upper limit, or in its vicinity, of the proper welding force range 12. By this method, reduction of welding strength in the vicinity of the starting climb, welding burns and spattering in the vicinity of the descending terminal are avoided, thus enabling a good seam welding to be carried out.
Patent JP-S5365948-A (JP)
Title: Discharge counter system for lightning conductor device
Inventor: MIZOGUCHI HITOSHI
IPC: H01T15/00
Filed: 1976-11-26
Abstract: PURPOSE: To provide a discharge counter system for counting passage of current caused by discharge or short-circuit current due to a lightning impulses by providing a reactor in paralllel with first and second circuits consisting of respective rectifiers and parallel circuits each consisting of a counter and a capacitor. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S5265452-A (JP)
Title: Method and apparatus for magnetic brush development in copying machine
Inventor: OONUMA TERUYUKI
IPC: G03G15/09
Filed: 1975-11-26
Abstract: PURPOSE: To obtain an image of a good reproduction by a novel development process wherein two developing rollers are separately provided at the development station, and a holding power which holds a developer at the developing position of one developing roller positioned at the entrance side of a recording body is rendered to be weaker than the holding power of the other developing roller in order to perform the development. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S6120653-A (JP)
Title: Oscillating method of mold for continuous casting of steel
Inventor: SUZUKI MIKIO
IPC: B22D11/053
Filed: 1984-07-10
Abstract: PURPOSE:To draw a billet at a high speed by oscillating vertically a casting mold in such a manner that the oscillation waveform is made non-sinusoidal waveform having a prescribed waveform distortion factor and that the time ratio of a negative strip attains a specific value or below. CONSTITUTION:The casting mold is vertically oscillated in such a manner that the oscillating waveform thereof is made non-sinusoidal waveform having the waveform distortion factor expressed by the prescribed equation and that the time ratio of the negative strip expressed by the specific equation in one cycle attains <25%. The desired compressive stress is thus always applied to the solidified shell in the mold and the oscillation frequency of the mold is decreased to flow thoroughly the powder slag between the solidified shell and the mold. The drawing of the billet having the excellent surface characteristic at a high speed from the mold is thus made possible and the generation of breakout is obviated.
Patent JP-S5366201-A (JP)
Title: Demodulator of angle-modulated wave signal reproduced from multichanneldisc record
Inventor: KASUGA MASAO
IPC: H03D3/02
Filed: 1976-11-25
Abstract: PURPOSE: To achieve the reduction and removal of abnormal noises in demodulated signal by controlling the circuit gain of a first PPL and the gain control circuit of the demodulated signal with the control signal based on the output signal of a synchronous detector. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S62298499-A (JP)
Title: Continuous pulverization treatment of hydrous waste
Inventor: MURAKAMI TOMIO
IPC: C02F11/14
Filed: 1986-06-18
Abstract: PURPOSE:To efficiently pulverize hydrous waste by throwing a high-speed dehydrating and desiccating agent and water successively to a kneading machine to induce a primary high-speed exothermic reaction, and throwing the hydrous waste successively therein to induce a secondary reaction, thereby pulverizing the waste. CONSTITUTION:The high-speed dehydrating and desiccating agent 11 and a prescribed volume of fish and shellfish juice 18 are successively thrown into the kneading machine 8 to induce the primary high-speed exothermic reaction. Such waste is transferred. The dehydrated waste 7 formed by dehydrating the hydrous waste such as sludge contg. fish and shellfishes and dung of livestock is crushed by a crusher 9 and is successively thrown into the kneading machine 8 where the above-mentioned primary reaction takes place. While the waste is agitated and transferred by a screw into the kneading machine 8, the secondary reaction of heating, evaporating and dehydrating are induced to heat up the waste quickly. The steam generated by the secondary reaction is cleaned up by a stem recovering device 20; at the same time, the dehydrated waste 7 in the kneading machine 8 is pulverized. As a result, the hydrous waste such as sludge contg. the fish and shellfishes and the dung of livestock is continuously and efficiently pulverized.
Patent JP-H09323136-A (JP)
Title: Method for forging bar shaped work
Inventor: KAMEDA TERUKI
IPC: B21J5/08
Filed: 1996-06-04
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of an underfill to such a degree that it can not be removed by ironing which is a succeeding process by making a twist occur in the swelling part of the bar shaped work after upsetting forging, and after that, ironing the outer peripheral surface of the swelling part of the bar shaped work. SOLUTION: In a first upsetting forging process, the bar shaped work 1 with a circular shape cross section is compressed in the axial direction And also, a work material is stretched in the diameter direction. Consequently. a first swelling part 10 is formed in a part in the axial length direction of the bar shaped work 1. After that, by using the bar shaped work 1, in a second upsetting forging process, it is compressed in the axial direction. Consequently, a second swelling part 15 is formed on the bar shaped work 1. After that, the outer peripheral surface of the second swelling part 15 is ironed by an ironing die to contract its diameter. Consequently, the outer peripheral surface with the diameter contracted is made an ironed surface. Even if a shallow underfill part occurs on the second swelling part 15, caused by the ironing, the underfill part can be removed by the ironing.