baber/WOPTO huggingface dataset:
Patent JP-H04117401-A (JP)
Title: Production of sulfonated chitosan
Inventor: HAYASHI JISUKE
IPC: C08B37/08
Filed: 1990-09-07
Abstract: PURPOSE:To obtain inexpensively sulfonated chitosan in which the hydroxyl groups in positions C3 and C6 are selectively sulfonated by dissolving chitosan in an aqueous acetic acid solution, regenerating the chitosan with an aqueous alkali solution, immersing and compressing the regenerated chitosan in a polar solvent, and treating the compressed chitosan with a specified complex in a nonpolar solvent. CONSTITUTION:Chitosan is dissolved or highly swollen in an aqueous acetic acid solution and regenerated with an aqueous alkali solution (desirably NaOH). The regenerated chitosan is washed with water and then with an alcohol and immersed and compressed in a polar solvent (desirably dimethylformamide or dimethyl sulfoxide). The compressed chitosan is treated with an SO3-DMF complex or a ClHSO3-DMF complex to selectively sulfonate the hydroxyl groups in positions C3 and C6. According to the above process, the hydroxyl groups of chitosan can be selectively sulfonated with an inexpensive sulfonating agent and unreacted sulfonating agent and the solvent can directly be recirculated without subjecting them to fractional distillation or the like, so that sulfonated chitosan in which the hydroxyl groups in positions 3C and 6C are selectively sulfonated can be produced economically.
Patent JP-H0763134-A (JP)
Title: Fuel injection stopping method for distribution type fuel injection pump
Inventor: ISHIHARA YOSHITOSHI
IPC: F02M41/12
Filed: 1993-08-27
Abstract: PURPOSE:To prevent re-injection of fuel and improve injection stopping precision by reducing pump chamber pressure instantly through processes of cutting off a fuel passage by means of a fuel cut solenoid valve at the time of key off and at the same time increasing positively an overflow quantity to a fuel tank from the pump chamber. CONSTITUTION:In the case of the distribution type fuel injection pump of a diesel engine, the fuel in a pump chamber 5 is delivered under pressure by means of a feed pump, and is fed to a plunger 7 that can reciprocate rotatably, through a fuel passage 13 to be opened/closed by means of a fuel cut solenoid valve 23, and the fuel is pressurized by means of the plunger 7, and is distributed to each cylinder. In this instance, a stop device 1 is provided at a pump housing 2. That is, the stopping device 1 is constituted that the fuel passage 13 may be cut off by means of the fuel cut solenoid valve 23 at the time of a key switch 9 being off, and at the same time a stopping orifice 102 having an opening area to be able to reduce the pressure of the pump chamber 5 may be opened by means of a stopping solenoid valve 1c, and the pressure of the pump chamber 5 may be lowered forcedly.
Patent JP-H04118369-A (JP)
Title: Hydraulic feeder for rear-wheel steering system
Inventor: TAKEHARA SHIN
IPC: B62D7/14
Filed: 1990-09-07
Abstract: PURPOSE:To shift a steering shaft in the axial direction with yet smaller force by prohibiting any energizing force of a centering spring to act on a steering shaft at a time when the steering shaft is shifted in the axial direction to steer each rear wheel. CONSTITUTION:A rear-wheel steering mechanism 171 is provided with a piston 84 being installed in a steering shaft slidably in a cylinder chamber 92 and partitioning off this cylinder chamber 92 into each of first and second cylinder chambers 94, 95, while it feeds pressure oil to either of these cylinder chambers 94, 95 with action of a spool valve mechanism 148, and shifts the steering shaft 80 in the axial direction. In this case, usually, pressure oil out of a hydraulic source 150 is fed to two pressure chambers 115, 102, thereby releasing any contact between spring pressers 124, 125 and ring parts 122, 123 against a centering spring 126, and such a fact that energizing force of the centering spring 126 works on the steering shaft 80 is prohibited, and at time of trouble happening, there is provided a centering mechanism 172 which keeps the steering shaft 80 in a neutral position by means of the centering spring 126.
Patent JP-H0679185-A (JP)
Title: Overload preventive device for rice hulling selector
Inventor: HACHITSUKA KOICHI
IPC: B02B3/04
Filed: 1992-09-03
Abstract: PURPOSE:To prevent the overload in hulling by setting a micro-overload reference value a little smaller than the given overload reference value in the case a breaker switch is off, although the sensed load current value is within specified range. CONSTITUTION:The micro-overload reference value 1B a little smaller than the overload reference value 1K is set, and in the case a breaker switch 41 is off and the drive of a rice hulling roll is stopped, although the sensed load current value 1F of a load current sensor 35 is within the range of 1B<=1F<=1K, the overload reference value 1K is corrected automatically higher by the given value from the following operation afterwards. Thus in the case a low load current value of one phase out of the three phases of a power source is sensed by the load current sensor 35 of a main motor 34 and the sensed value is not in conformity with the load current value sensed by the breaker switch 41, the off state of the breaker switch 41 is prevented from the restart of the following operation afterwards to carry out the rice hulling and selecting works efficiently.
Patent JP-H0882110-A (JP)
Title: Mechanical parking device
Inventor: MARUKO TOSHIHIRO
IPC: E04H6/42
Filed: 1994-09-05
Abstract: PURPOSE: To reduce a required amount of fire extinguishing gas required when a fire breaks out. CONSTITUTION: A fireproofing wall 16 is installed on both sides of a running passage 4 and fixed between parking chambers 8 adjacent in the front and rear where a horizontally movable shutters 17 are installed side by side to the fireproofing wall 16. The horizontally movable shutter 17 are located in an elevation higher than a running rail 7 and engaged with each other at the central part of the running passage. Vertically movable shutters 18 installed to the horizontally movable shutters 17 fall between rails 7 with the horizontally movable shutters 17 engaged with each other, thereby dividing a unit 2 into a plurality of fireproofing sections. Since the area of one fireproofing section is reduced, this construction makes it possible to minimize a required amount of fire extinguishing gas.
Patent JP-H04121047-A (JP)
Title: Superconducting brushless motor
Inventor: TAJIMA YUKIMICHI
IPC: H02K29/00
Filed: 1990-09-07
Abstract: PURPOSE:To rotate at a variable high speed by providing a rotation angle detecting mechanism having a laser light source, a mirror, a photodetector in a superconducting magnetic bearing motor for driving. CONSTITUTION:A superconducting brushless motor A has a magnetic bearing composed of a high temperature superconductor 2 and a levitation bearing permanent magnet 3 having N-poles and S-poles in an axial direction. As a driving system of a rotor 8 separately having a permanent magnet 5 for driving rotation, a rotation angle detecting mechanism composed of a laser light source 10, mirror 9, and photodetectors 11, 14 is employed. That is, a rotation angle detecting mechanism for receiving a laser light LL from the source 10 by the photodetector 11 through the mirror 9 mounted at the other end of a rotor body 4 is provided in a superconducting magnetic bearing motor, currents of solenoids 6, 7 for driving rotation are inverted to vary the rotating speed. Thus, high speed rotation is performed at a variable speed to sufficiently achieve the performance of a magnetic bearing motor.
Patent JP-H0683901-A (JP)
Title: Logic circuit optimizing device
Inventor: NISHIO SEIICHI
IPC: G06F17/50
Filed: 1992-09-03
Abstract: PURPOSE:To obtain optimization effects of larger timing than those of local conversion without greatly increasing a processing time. CONSTITUTION:This device consists of a reconvergence path detection part 3 which detects a reconvergence path in a critical path, a branch stage quantity detection part 4 which detects the number of logic stages from a reconvergence source signal to a branch to logic other than the logic on the reconvergence path in the presence of the branch, a branch deletion part 5 which duplicates the logic from the reconvergence source signal to the branch and deletes the branch when the number of stages is less than a certain number, a fixed value conversion part 6 which converts a signal value of one of two reconvergence paths detected by the reconvergence path detection part into a fixed value according to conditions of the logic circuit on the reconvergence path, and a fixed value input optimization part 7 which simplifies combinational logic inputting the fixed value obtained by the conversion.
Patent JP-H1186591-A (JP)
Title: Match strobe setting method and timing generator using this method
Inventor: WATANABE NAOYOSHI
IPC: G06F1/04
Filed: 1997-09-01
Abstract: PROBLEM TO BE SOLVED: To unnecessitate a delay circuit and to simplify a manufacturing method by providing a strobe generator and a match strobe generator in a timing generator, setting a generation timing of a strobe pulse in the strobe generator and generating the generation timing and a match strobe. SOLUTION: A normal mode setting signal is fed to a control terminal S of a multiplexer 13A, and a strobe STRB1 which is outputted with the strobe generator GE is outputted with the multiplexer 13A. Delay data Xns and Yns are written into the strobe generators GE and GF, and the strobe STRB2 is outputted at a timing delayed by Xns from a reference timing of a periodic pulse with the strobe generator GE. The delay data Xns is written into the the match strobe generator G14, and with respect to a delaying quantity, the match strobe MAC is outputted at a timing delayed by a time wherein a Mns previously stored in itself is added to the delay data Xns.
Patent JP-S6287458-A (JP)
Inventor: PIITAA TOOMASU SUTAA
IPC: C04B35/106
Filed: 1986-10-03
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-H0398001-A (JP)
Title: Convex reflecting mirror
Inventor: MIYAKE SHINYA
IPC: G02B5/10
Filed: 1989-09-12
Abstract: PURPOSE:To eliminate extreme distortion of an image by inscribing discontinuous areas to radii of curvature which are made by a fine difference less than their radii of curvature, arraying them on the same axis in a rotating shape, and thus forming ring areas which move as fine points. CONSTITUTION:The surface area 2 of a mirror main body 1 is sectioned into spherical areas 3, 3a... by radii Ra - Rc of curvature which set optionally according to the purpose of use on the same axis at specific intervals, and the discontinuous areas 4, 4a... which are formed between the adjacent spherical areas of 3, 3a... are inscribed in order to the radii which are by a fine difference less than their radii of curvature. Further, the ring areas 5, 5a which move as fine points are formed by arraying the areas on the same axis in the turning direction. Consequently, although the spherical areas 3, 3a... which differ in radius of curvature are present on the mirror main body 1, a natural reflected image is obtained without being extremely distorted.
Patent JP-2001060803-A (JP)
Title: Distributed constant filter
Inventor: TAKEDA SHIGEKI
IPC: H01P1/203
Filed: 1999-08-23
Abstract: PROBLEM TO BE SOLVED: To constitute and realize a theoretically correct circuit where a structure is simplified, loss is reduced and performance is improved by converting a reference conversion low-pass filter in frequency, which is provided with a specified transmission function. SOLUTION: A phase characteristic is fixed by not less than sextic Hurwitz's polynomial of a complex frequency having a phase linear characteristic, which is a denominator rational polynomial. The imaginary roots of the even function of the complex frequency being a numerator rational polynomial is designated to arrange a transmission zero point in the desired frequency and the real root of the numerator rational polynomial is fixed to make an amplitude characteristic flat in a passage band. A circuit network function consists of the numerator rational polynomial and the denominator rational polynomial and is adopted as the transmission function to synthesize the reference conversion low-pass filter. The element of a negative value is converted into a really existing positive value element by equivalent conversion and frequency conversion is executed in a band pass characteristic.  Then a circuit is equivalently converted into an unbalanced distributed constant circuit to realize a distributed constant filter.
Patent JP-H04115306-A (JP)
Title: Device for supporting structural design of fuzzy control rule
Inventor: TANABE SHOJI
IPC: G05B13/02
Filed: 1990-09-05
Abstract: PURPOSE:To easily and properly design the structure of a fuzzy control rule and to improve the accuracy of control for a process to be controlled by properly dividing the whole area constituting the fuzzy control rule into divided areas each of which corresponding to the fuzzy label of another input variable or output variable. CONSTITUTION:This supporting device 1 is constituted so as to be integrated into a fuzzy control system A for controlling a process B to be controlled. A fuzzy control rule stored in a fuzzy knowledge base 2 read out from the base 2 to an editor 4 and the three-dimensional display coordinates of a fuzzy label of each input variable to be the contents of an antecedent part are calculated. Then, a label space 30 (whole area) constituted of using the fuzzy labels of respective input variables as respectively rectangular coordinate axes is displayed on a CRT 5. The space 30 is displayed so as to be divided into plural unit spaces 20 indicating the contents of the antecedent part of each fuzzy control rule. The device 1 is provided with respective functions for the inspection and change of a the position of each divided space, the display of the contents of each fuzzy control rule, etc., the selection menu of these functions is displayed on the CRT 5 and a required function out of the functions is selected through a keyboard 3.
Patent JP-H0286758-A (JP)
Title: Sheet-like deoxidizing agent
Inventor: MORIYA TAKEHIKO
IPC: A23L3/3436
Filed: 1988-09-22
Abstract: PURPOSE:To provide the subject deoxidizing agent having a high deoxidizing rate and a large oxygen-absorbing capacity and useful for preserving foods, by disposing a deoxidizing agent main material consisting essentially of iron powder and a metal halide an a sticking material between two sheet-like surface materials and thermally melt-bonding the materials. CONSTITUTION:(A) A deoxidizing main agent consisting essentially of (i) iron powder and (ii) a metal halide and (B) a sticking material comprising (iii) a natural or synthetic fibers and (iv) thermally meltable fibers or resin powder are placed between (C) two sheet-like surface materials and heat-pressed to provide the thermally melt-bonded deoxidizing agent. The obtained deoxidizing agent is preferably covered and adhered with a covering material fro both the sides thereof or received in a bag formed on the covering material.
Patent JP-H0663270-A (JP)
Title: Safety device for sewing machine
Inventor: SUMIYOSHI KOJI
IPC: D05B69/36
Filed: 1992-08-13
Abstract: PURPOSE:To use a computer-controlled sewing machine extremely safely at the time of its start. CONSTITUTION:In a computer-controlled sewing machine, a start signal- generating device A such as a controller 1 or a start and stop switch 2, an electric source switch B for supplying electric power required for the sewing machine, a safety-determining device C for determining whether it is normal or not, a forcibly stopping device D for insuring safety by stopping the whole operation at the time of abnormal operation, a safety-indicating device E for indicating such information that the electric source switch is turned on, to an operator, a switch mechanism F by which the whole of a system such as the electric source switch B is made resettable, are provided.
Patent JP-2001059809-A (JP)
Title: Method for testing light fastness
Inventor: YAMAMOTO KOJI
IPC: G01N17/00
Filed: 1999-08-24
Abstract: PROBLEM TO BE SOLVED: To provide the method for testing light fastness capable of evaluating whether a material/product (containing a coating film) such as a resin molding or the like is easy to receive the effect of ultraviolet rays under light environment for a short time. SOLUTION: In a light fastness testing method performed by irradiating a test sample with ultraviolet rays, plasma 5 is formed and the test sample 6 is directly irradiated with ultraviolet rays emitted from the formed plasma 5. The plasma 5 is formed by ionizing gas under reduced pressure by a high frequency electric field. The output of a power supply for forming the plasma is 100-400 W and the ultraviolet irradiation time of the test sample is 60-600 sec.
Patent JP-H03100918-A (JP)
Title: Magnetic recording medium
Inventor: HASHIMOTO HIROSHI
IPC: C09D5/23
Filed: 1989-09-12
Abstract: PURPOSE:To improve electromagnetic conversion characteristics and durability of a medium by successively forming a first magnetic layer and a second magnetic layer on a nonmagnetic supporting body and incorporating amine-modified vinyl chloride copolymers as a binder into the second magnetic layer. CONSTITUTION:The first magnetic layer and second magnetic layer comprising ferromagnetic powder dispersed in binders are successively formed on the nonmagnetic supporting body to constitute the medium. Amine-modified vinyl chloride copolymers are incorporated as the binder into the second magnetic layer. The binder in the first layer is vinyl chloride copolymer containing at least one of polar groups such as -OH, epoxy group, -COOM, -SO3M, -OSO3M, -PO3M2, -OPO3M2 (wherein M is hydrogen, alkali metal or ammonium). By this method, the obtd. second magnetic layer has high packing property and smoothness, improves the electromagnetic conversion characteristics and gives a tough coating film. Thereby, deterioration of durability due to cracks or plastic change of a magnetic layer caused by sliding of a VTR head, etc., can be prevented.
Patent JP-2001068348-A (JP)
Title: Reactor
Inventor: KONDO JUNJI
IPC: H01F27/06
Filed: 1999-08-24
Abstract: PROBLEM TO BE SOLVED: To provide a lead type reactor wherein a pair of cores are fixed easily by omitting jigs such as clips and keeping the magnetic gap constant. SOLUTION: The lead type reactor is constructed such that a reactor body 1 is mounted on a mounting piece 12. The body 1 has coil bobbins 2, coils 7 wound around the barrels of the bobbins 2, and a pair of cores 8 and 8 fixed to the hollow portions of the barrels of the bobbins 2 while inserting their leg portions thereinto, respectively. In this lead type reactor, biasing pieces 16 and 16 for biasing outside end faces 8' and 8" of the cores 8 and 8 are erected at portions 15 and 15 of the piece 12 on which the body 1 is mounted, respectively.
Patent JP-H0788897-A (JP)
Title: Molds and gas injection molding method
Inventor: MARUOKA HIROYUKI
IPC: B29C45/26
Filed: 1993-09-22
Abstract: PURPOSE:To reduce a cost of a hollow molded form by drawing a plurality while obtaining moldability. CONSTITUTION:Resin flows from a resin gate 36 as a submarine gate to cavities 50, 52, 54, 56 through a starting part 28 to flow the respective cavities and stops at a rear false part 62. After the flow of the resin is completed, pressurized gas starts to flow from the part 62 into the resin to flow in the resin toward the part 62. Thus, an S-shaped tube is obtained as a hollow molded form. Gas flowing from a gas gate 24 is altered in its direction at the part 28, and its direction altering angles are the same in all the cavities. The cavities are disposed at equal distance positions from the part 28. Accordingly, the gases for feeding in the resin in the cavities are made uniform in all the cavities. Excellent gas pressure balance can be obtained among the cavities.
Patent JP-H1083915-A (JP)
Title: Coil and its manufacture
Inventor: IKEHARA TAKESHI
IPC: B81C1/00
Filed: 1996-09-06
Abstract: PROBLEM TO BE SOLVED: To realize downsizing of a coil and high-current density by forming an aluminum thin film on an insulating substrate and performing anodic oxidation processing to reach the thickness of the aluminum thin film while masking wiring parts of the coil with resist. SOLUTION: An insulating film 12 is formed on one surface of a silicon substrate 11, and an aluminum thin film having coil conductor portions 13 at predetermined portions is formed on the insulating film 12 on the substrate 11. The coil conductor portions of the aluminum thin film are masked with resist, and anodic oxidation processing to reach the thickness of the aluminum thin film is performed. This forms the aluminum coil conductor portions 13 partitioned with aluminum oxide layers of insulator portions 14. Next, the respective layers of the laminated aluminum thin film are electrically connected to substantially increase the number of turns, and form a contact 15. The above processing is repeated to form a multi-layer coil. The contact 15 between the layers is formed of a portion which has been masked and not oxidized in the anodic oxidation.
Patent JP-H1076899-A (JP)
Title: Lid structure of air bag device for vehicle
Inventor: KIKUCHI HIROHIKO
IPC: B60R21/20
Filed: 1996-09-06
Abstract: PROBLEM TO BE SOLVED: To ensure the strength of a bridge itself for locking a tether in which the tether is inserted and connected on a rear surface of a lid and prevent the occurrence of shrinkage on a surface of the lid so as to reduce an amount of resin raw material to be used, by providing the bridge integrally and forming a hollow part in a leg part of the bridge. SOLUTION: When each bridge 24A, 24B and 25A, 25B which is integral with a rear surface of a lid plate part 22 is molded from a resin on the rear surface thereof by an injection molding means, the inside of a leg part which forms each bridge, a reinforcing rib 27, etc., is made hollow by using a gas assist injection method. Consequently, it is possible to prevent, reduce the weight of a product (lid), and achieve economy due to the reduction of an amount of resin used while ensuring the strength of the bridges. That is, when the lid 21 made of a resin is injection-molded, respective bridges and reinforcing rib 27 are formed and pressurizing gas is forced into to hollow the inside of the leg part of the bridge and the reinforcing rib 27 so that a hollow part is formed.
Patent JP-H04115271-A (JP)
Title: Image forming device
Inventor: KITADA TAKASHI
IPC: G03G15/08
Filed: 1990-09-05
Abstract: PURPOSE:To surely prevent the leakage of a developer, and the degradation in the quality of an image formed on a copy sheet by forming the length of a layer thickness regulating member longer than that in the shaft direction of a developer carrier. CONSTITUTION:The length of the layer thickness regulating member 19 which is made into an L-shape and held on one side wall of a holding member 9, is formed longer than that in the shaft direction of a developing roller 6 and that between both side walls of a housing room 4. When one component toner is started to be heaped inside the member 19 accompanying with a rotation, excess toner which is not carried to the surface of the roller 6 is moved along the member 19, and collected on both end parts of the roller 6. However, the member 19 is not so long as to have a space in which the toner collected to both end parts of the roller 6 is heaped, so that even if the toner is concentrated on both end parts of the roller 6, the toner is not heaped thereon. Therefore, a simple sealing member 23 is disposed on both end parts of the roller 6, so that the leakage of the toner is prevented.