baber/WOPTO huggingface dataset:
Patent JP-H11228617-A (JP)
Title: Alpha-olefin polymerization catalyst and production of alpha-olefin polymer
Inventor: SATO ATSUSHI
IPC: C08F10/00
Filed: 1998-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a highly stereoregular α-olefin polymer with slight fine powder and good powder disposition, and to obtain a catalyst for α-olefin polymerization having high catalytic activity enough to dispense with removing catalyst residues and amorphous polymers. SOLUTION: This catalyst for α-olefin polymerization is composed of (A) a titanium compound-contg. solid catalytic component which is prepared by the following process: a solid product formed by mutual contact between a Si-O bond-bearing organosilicon compound, an ester compound and an organomagnesium compound is treated with an ether compound, titanium tetrachloride and an organic acid halide compound followed by a mixture of an ether compound and titanium tetrachloride or a mixture of an ether compound, a titanium tetrachloride and an ester compound, (B) an organoaluminum compound, and (C) an electron-donating compound. The other objective method for producing an α-olefin polymer comprises homopolymerization of an α-olefin, or copolymerization between an α-olefin and ethylene or another α-olefin, using the above catalyst.
Patent JP-S60180848-A (JP)
Title: Liquid jet recorder
Inventor: SAKURADA NOBUAKI
IPC: B41J2/205
Filed: 1984-02-29
Abstract: PURPOSE:To obtain stable recording with high speeds by providing a means to prohibit the discharge of timing beyond the upper limit of frequency to which a head is responsible when controlling discharge timing for tonal display, etc. CONSTITUTION:Image density data are put in a discharge timing-discriminating circuit 4, and discharge timing selection signals O1-O4 are put in a discharge timing control circuit 5. In the circuit 5, whether the signals O1-O4 are within the upper limit of the frequency characteristics of the head 3 is judged, discharge timing is determined, and discharge timing control pulse TE is generated.
Patent JP-S51113635-A (JP)
Title: Image forming apparatus
Inventor: HASEGAWA SHIGERU
IPC: B41B17/06
Filed: 1975-03-28
Abstract: PURPOSE: After projecting the desired image on the electrificated photoconductive photosensitive body from the originals fo type photo-composing mechanism, to develope the formed electrostatic latent image and to make color title card of desired color in a short time. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H08214523-A (JP)
Title: Resolver
Inventor: TANIGUCHI MASAMITSU
IPC: H02K24/00
Filed: 1995-02-03
Abstract: PURPOSE: To immediately detect the fault of a resolver by detecting the fault when the output time of the OR signal between the first comparison signal and the second comparison signal is under a specified value. CONSTITUTION: The fault detector 13 of a resolver 10 is composed of a first comparison means 13a, the second comparison means 13b, an OR operation means 13c, a first time limiting means 13d, and a second time limit means 13e. And the first comparison means 13a outputs a first comparison signal when the induced voltage Er1 is not less than the specified threshold, and a second comparison means 13b outputs a second comparison signal when the induced voltage Er2 is not less than the specified threshold. Moreover, the OR operation means 13c output an OR signal when the OR of the first comparison signal and the second comparison signal materializes, and the second time limiting means 13e measures time and resets the measurement time when a reset signal is inputted within the specified time and outputs a fault signal to outside when the measured time exceeds the specified value.  As a result, the rotor can be stopped immediately and countermeasure can be taken.
Patent JP-H11230413-A (JP)
Title: Joint structure of earthquake resistant propulsion pipe
Inventor: ARAKAWA NORIYUKI
IPC: F16L1/024
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To cover a member, such as a press ring, a fastening bolt, or a rubber ring for seal, with earthquake resistant provided through easy and simple structure when earthquake resisting pipes are laid through a propulsion method. SOLUTION: One end of a straight pipe forms a spigot 2, the other end forms a socket 3 capable of receiving the spigot 2, and an outer surface is covered with a sheathing material 11 such that a portion, except a spigot part 2A, extending from the tip of the socket to the spigot has the same outside diameter. The so formed propulsion pipe 1 is pushed with a liner 4 inserted in the tip of the spigot 2 and inserted in the socket 3. In a so formed earthquake propulsion pipe, a space between a socket end face 3A and the end face of the sheathing material 11 of the other pipe is filled with an embedding material 12 being approximately the same thickness as that of the sheathing material and divided in a peripheral direction. An annular cover material 13 having expandability and contractility is mounted in a fit-in state on the outer surface of the embedding material 12.
Patent JP-H11219129-A (JP)
Title: Head-mounted display unit
Inventor: TENTO HISASHI
IPC: H04N5/64
Filed: 1998-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a light and small head-mounted display unit capable of adjusting easily a forming position of a display image. SOLUTION: This display unit has a display light emitting part mounted on the head of an observer and emitting image display light toward a front side of the observer, a connecting member 12 extended from the display light emitting part toward the front side of the observer, and an optical system 13 connected to the tip side of the connecting member 12 in the front of observer's eyes so as to change a light path of the image display light to be guided to the observer's eyes. A relative position with respect to the connecting part 12 of the optical system 13 is changeable so as to regulate the advancing direction of the image display light of which light path is changed by the optical system 13.
Patent JP-S60185022-A (JP)
Title: Cigarette lighter
Inventor: TAKEYAMA KOUICHI
IPC: F23Q7/00
Filed: 1984-02-29
Abstract: PURPOSE:To shorten waiting time by informing a user of ignitable timing at an early stage, by providing a timer device making an alarming device actuate at the earlier time than the time to be released by a bimetal clamp. CONSTITUTION:When a knob 6 of a lighter body 2 is kept pressing in against a return spring 10 a heat unit case 12 is connected with a bimetal clamp 5 and the lighter body 2 is connected with the inside of a case body for holding. Then under this state the bimetal clamp 5 becoming of a contact point 20 and the heating unit case 12 are connected with each other and a heating wire 14 is heated by electrifying the heating wire 14. Then when the heating wire 14 arrives at a fixed temperature (about 1,200 deg.C), the connection of the bimetal clamp 5 with the heating unit case 12 is released by deforming the bimetal clamp 5. On the one hand, a light emitting diode 3 as an alarming device is fixed to a through hole 16 formed on a knob 6 in a state exposing the surface part and controlled by a timer device 4 so that the light emitting diode 3 emits a light when the temperature of the heating wire 14 has become of the practically ignitable temperature (about 400 deg.C).
Patent JP-S61196360-A (JP)
Title: Word processor
Inventor: INOUE SAKAE
IPC: G10L15/00
Filed: 1985-02-27
Abstract: PURPOSE:To save the labor of the reinputting of the operator by making part of the inputted sentences into the word for recognizing the voice defined by the user. CONSTITUTION:While the voice input processing is executed in accordance with the program in a memory 32, a word registering key is pushed down, and then, a CPU 31 matches a cursor to the characters at the head and the end of part of the inputted sentences, stores the start end address of a displaying memory 33 to a memory and the inverting displaying is executed. Next, the extracting character column is uttered, the voice is inputted and the column is registered as the standard pattern of a word number (m). Next, since the operator executes the registered voice input and then, the word number (m) is sent at a voice input part 2, the CPU 31 refers to the x+m address of the memory 32, reads the contents of the address from a B address in which the definition character column is included as an address, and executes the input processing as an input character column.
Patent JP-H08229685-A (JP)
Title: Method for welding clad steel tube
Inventor: OGATA YOSHINORI
IPC: B21C37/08
Filed: 1995-02-27
Abstract: PURPOSE: To realize the defect-free welding by arranging two welding wire which are the electrodes connected to one power source orthogonal to the weld line with the interval of two welding wires being wider than the width to be removed of a clad plate, and providing an electrode of one wire rearward thereof. CONSTITUTION: Two welding wires 13, 14 for high alloy steel to be fed from a wire feeding equipment 12 connected to a welding power source 11 are held by a welding tip 10 of a preceding electrode, and a welding wire 18 connected to a welding power source 16 is held by a welding tip 15 of a succeeding electrode. The interval of the welding wires 13, 14 is wider than the notch width of a clad plate by 4-8mm, and the welding wires are orthogonal to the weld line while the welding wire 18 is set at rearward of the welding wires 13, 14 by 5-20mm. The clad plate is melted to form the molten pool so that the arc of the preceding welding wires 13, 14 may not be directly applied to a part to be welded of the low alloy steel part, and the succeeding welding wire 18 increases the amount of the deposited metal in the molten pool.  Uniform and defect-free welding of the inner clad plate can be achieved thereby.
Patent JP-H10240679-A (JP)
Title: Data bus switching circuit
Inventor: FUKUDA ATSUO
IPC: G06F13/36
Filed: 1997-02-21
Abstract: PROBLEM TO BE SOLVED: To sufficiently use performance which micro processors have by providing a means for switching connection between data buses based on an input signal so that an enabled memory and the selected micro processor are connected. SOLUTION: The data bus 40 between the micro processors 21 and 22 and the memories 31 and 32 is switched for permitting the first micro processor 21 having the data bus width of 16 bits and the second micro processor 22 having the data bus width of eight bits to access to the first and second memories 31 and 32 having the data bus width of eight bits. An enable means 1 enabling at least the memory 31 or 32 based on the input signal is formed by a decoder 1a provided inside. Then, the switching means 2 changing over connection between the data buses 40 based on the input signal is formed by a logic circuit 2a provided inside.
Patent JP-H09227186-A (JP)
Title: Cement admixture
Inventor: KAWAI MASARU
IPC: C23C18/16
Filed: 1996-02-26
Abstract: PROBLEM TO BE SOLVED: To apply phosphorous acid or its salt as a cement admixture useful as a coagulation accelerating agent, a rust-preventing agent for reinforcing steel or a cold protecting agent. SOLUTION: This cement admixture is composed of phosphorous acid and/or its salt. An alkali metal salt, especially sodium salt, is preferable as the phosphorous salt. The cement admixture may be composed only of phosphorous acid and/or its salt. However, the admixture may be composed of a waste liquid of electroless nickel plating, its concentrate or purified material. The cement admixture is preferably added in an amount of >=3 pts.wt., most preferably 6-24 pts.wt., in terms of phosphorous acid and/or its salt as an active component to every 100 pts.wt. of a cement.
Patent JP-S58154625-A (JP)
Title: Sensor for detecting illumination of whole sky
Inventor: OKI MASATO
IPC: G01J1/06
Filed: 1982-03-10
Abstract: PURPOSE:To detect the illumination of thw whole sky even in a densely built-up area, by fitting separators forming light passing holes between a light collecting hole and a photosensor to prevent the reflected light from the inwall surface of a light shielding cylinder from being made incident to the photosensor. CONSTITUTION:The light collecting hole H1 with radius r1 is formed on the upper surface of the light shielding cylinder 1 having square sections of which the whole inside and outside surfaces are coated with delustering black paint and an illuminometer 2 having the photodetecting area of radius r2 (r2<r1) is attached to the bottom of the cylinder 1. In order to prevent the light from the light collecting hole H1 from being reflected by the inwall of the cylinder 1 and irradiated to the iluminometer 2, the separators 3-6 are fitted between the upper surface of the cylinder 1 and the illuminometer 2. When the whole sky luminance E' around the periphery of the zenith is to be measured by turning the cylinder 1 upwards, the whole sky illumination E is found from E=K.E' when a constant fixed by the shape of the whole sky illumination sensor ODS, a measuring time band and the weather at the time band is defined as K.
Patent JP-S52121332-A (JP)
Title: Thermal recording sheet and thermal printing card produced therefrom
Inventor: KUBO TAKASHI
IPC: B41M5/28
Filed: 1976-04-06
Abstract: PURPOSE:To enhance the water proofness, abrasion resistance, solvent resistance, and particularly, alcohol resistance in order to improve its preservation by providing a thermal color forming layer containing a thermal color forming substance insoluble in an organic solvent and in an adhesive resin soluble in the organic solvent.
Patent JP-H07249545-A (JP)
Title: Driving electrolyte of electrolytic capacitor
Inventor: HONGO SHUZO
IPC: H01G9/035
Filed: 1994-03-09
Abstract: PURPOSE:To actuate an explosion-proof valve without short-circuiting at all even if the electrolytic capacitor is impressed with an overvoltage by a method wherein an alkyl ether sulfate represented by a specific formula is added to the electrolyte of electrolytic capacitor to improve the breakdown voltage without raising the specific resistance at all. CONSTITUTION:An alkyl ether sulfate represented by the formulas I or II is added to the electrolyte of electrolytic capacitor. In the formula I, R1, n, m and M respectively represent CnH2n+1 integers of 8-18; 2, 4, 6; NH4, Na, K while in the formula II, R2, j, M respectively represent CjH2j+1, integers of 8-9, NH4, Na, K. Through these procedures, the breakdown voltage can be improved without raising the specific resistance at all.
Patent JP-S55131945-A (JP)
Title: Electron gun
Inventor: NAKASUJI MAMORU
IPC: H01J1/16
Filed: 1979-03-31
Abstract: PURPOSE:To obtain a great specimen current of high luminance and long life by making an improvement to the shape of a monocrystalline LaB6 cathode. CONSTITUTION:An electron gun 1 consists of a cathode 11 of a monocrystalline LaB6 whose tip is sharpened, a heater 12 adapted to heat the cathode 11, an anode 13, and a Wehnelt 14. The electron rays from the electron gun 1 is focused into a crossover at the point a. The image of the crossover is contracted by condenser lenses 2 and 3 and then projected onto the specimen 5 through an object lens 4. The cathode curvature radius at the concave tip of the cathode 11 is 20-40mum.
Patent JP-S51113513-A (JP)
Title: Specific telephone service system
Inventor: KODAMA TOSHIO
IPC: H04M3/44
Filed: 1975-03-31
Abstract: PURPOSE:To enable performance of specific telephone service without providing register and common controller with any specific function.
Patent JP-H05319963-A (JP)
Title: Non-oxidizable carbon material and its production
Inventor: UEDA TAKASHI
IPC: C04B35/80
Filed: 1991-03-05
Abstract: PURPOSE:To obtain a non-oxidizable carbon material not releasing by heat strain of coating material and not reducing strength of carbon parent material by excessive modification by coating the surface of a carbonaceous base with a mixture of carbon and a metal carbide and increasing the ratio of the metal carbide from the base side toward the surface side of the coating film. CONSTITUTION:A mixture of a metal element-containing compound to form a metal carbide by heating and an organic compound to form carbon by heating, subjected to composition adjustment, is applied to a carbon material comprising a carbonaceous material as a base and a heating process is repeated. Consequently, the formed mixture of carbon and the metal carbide has a higher carbon ratio at the base side, gradually reduces the ratio of carbon toward the surface side and increases the ratio of the metal carbide.
Patent JP-H04277944-A (JP)
Title: Multi-channel digital signal receiver
Inventor: KITAGAWA KAZUO
IPC: H04B1/16
Filed: 1991-03-05
Abstract: PURPOSE:To accurately and economically eliminate the noises produced by the channel switching actions in a simple circuit constitution that can be easily integrated. CONSTITUTION:A set timing generating part 38 receives a selection signal 35 and supplies a selection signal 44 delayed by a prescribed time to a selection part 34 to perform the switch of channels. At the same time, the part 38 supplies a switch signal 43 to a low order synchronization adding part 36 for another prescribed time including the prescribed time and adds the synchronizing signal of a pattern where the distance between the codes is larger than a prescribed level to the synchronizing signal of a low order digital signal to mute the signal at selection of the low order digital signal. Thus the noises produced by the channel switching actions can be prevented.
Patent JP-H01213013-A (JP)
Title: High-frequency amplifier
Inventor: OTA KAZUYOSHI
IPC: H03G1/00
Filed: 1988-02-22
Abstract: PURPOSE:To prevent the leakage of a high frequency by inserting a relay switch switch-acted with the turning on of a push switch in the power source system of a high frequency amplifying part. CONSTITUTION:A through hole 5 in the thickness direction is opened in a flange 3a of an output waveguide 3, and a push switch 6 is provided at the back position of the through hole 5. When a connecting waveguide 4 is not connected, the push switch 6 goes to a turning off condition, a relay coil 7a is not energizing a relay switch 7b turns off, the power supply from a power source 8 to a high frequency amplifying part 2 is stopped, and also the output of a high frequency to the output waveguide 3 is stopped.
Patent JP-S59163760-A (JP)
Title: Alkaline zinc storage battery
Inventor: FURUKAWA SANEHIRO
IPC: H01M4/42
Filed: 1983-03-08
Abstract: PURPOSE:To enable a zinc electrode to bear a longer cycle life by further reducing the deformation of the zinc electrode by making the concentration of indium in the peripheral area of the electrode larger than that in its central area. CONSTITUTION:A zinc electrode 1 principally consists of zinc metal and zinc oxide and contains at least one chosen from among indium metal and indium compounds. The concentration of indium in the peripheral area of the plate is made larger than that in its central area. When the concentration of indium in the peripheral area of the plate is adjusted to twice that in its central area, the cycle life of an alkaline zinc storage battery is further improved. Since a large amount of indium exists in the peripheral area of the plate, dissolution of zinc which is an active material is suppressed causing almost the same degree of zinc dissolution in the central area and in the peripheral area of the plate. As a result, deformation of the plate which may start from its peripheral area is suppressed, thereby suppressing capacity reduction of the battery and improving its cycle characteristic.
Patent JP-S58157655-A (JP)
Title: Paper forms misholding detecting unit
Inventor: IDE MIKIO
IPC: G03G15/00
Filed: 1982-03-13
Abstract: PURPOSE:To surely detect misholding of paper forms to prevent units like copiers from operating by installing a light sensor onto a paper forms-holding position of a forms-holding member at the time when the holding member starts holding paper forms. CONSTITUTION:In a paper forms conveying mechanism like a copier in which a paper form 1 is conveyed being held by a holding member 9, a light sensor 17 is installed onto a paper form holding position of the holding member 9 at the time when the member 9 starts holding a paper form. Namely, just before the holding member 9 holds the tip of a paper form 1, the light sensor 17 can detect whether the tip of the paper form 1 is held properly or not, thus, since it is possible to prevent the copier from starting its operation by detecting any misholding before  allowing the whole copier to start. This can eliminate recovery operation of the  copier it finishes copy work and stops, so that simple operation and control of the copier can be achieved. In addition, since the subsequent paper form-feeding is automatically suspended if paper forms-misholding is detected, occuurnce of jamming can also be prevented.
Patent JP-H04292575-A (JP)
Title: Ignition timing control device of internal combustion engine
Inventor: HASHIMOTO ATSUKO
IPC: F02P5/15
Filed: 1991-02-12
Abstract: PURPOSE:To improve the accuracy of the ignition timing by setting the ignition timing freely even between the teeth of a crank shaft by a timer control of a microcomputer. CONSTITUTION:A rotational angle signal is generated at every specified rotational angle according to the rotational angle of a crank shaft of an internal combustion engine by a signal generating means 1, and one or more rotational angle signal (s) are omitted at the specified angle of the crank shaft. Then, the rotational angle signals are counted from the omitted angle position by means of a control signal 4A, and the specified crank angle is determined, and the ignition timing is calculated from the point time by the timer control and control is realized thereby.
Patent JP-H08208007-A (JP)
Title: Position-recognitive pallet for automatic operation-controlled warehouse
Inventor: OCHIAI KATSUTOSHI
IPC: B65G1/04
Filed: 1995-02-03
Abstract: PURPOSE: To provide a position recognitive pallet for an automatic operation- controlled warehouse, which is excellent in its saving, stabilization and rationalization, because no hands are required and also positioning accuracy is high when housing a plurality of articles in their respective predetermined positions of the pallet in a warehouse, and further recognizing marks do not need to be put on all articles. CONSTITUTION: This pallet is equipped with coordinate position recognizing marks 5 regularly attached per each grid on the top surfaces of respective grid-like diaphragms of the pallet. A robot 05 takes out and returns a magnetic tape 1 from/to the pallet based on the coordinate position recognizing marks 5.
Patent JP-H01213579-A (JP)
Title: Method and device for measuring surface resistance
Inventor: UMEMURA YOSHIO
IPC: G01R31/28
Filed: 1988-02-22
Abstract: PURPOSE:To reduce contact resistance produced at the time of surface resistance measurement so as to perform highly accurate surface resistance measurement by giving ultrasonic vibrations to plural probes after the probes are brought into contact with the surface of a semiconductor substrate, and then, measuring the resistance of the substrate. CONSTITUTION:Four probes 23-1-23-4 are arranged in a line above the surface of a semiconductor substrate 21, namely, above the surface of a diffusion layer 22 and their end sections are almost perpendicularly brought into contact with the surface of the diffusion layer 22. Thereafter, ultrasonic vibrations are given to the probes 23-1-23-4. Accordingly, the end sections of the probes make friction movement at the points where the end sections are brought into contact with the surface of the layer 22 due to the ultrasonic vibrations and the dust and oxidized crusts adhering to the end sections of the probes or the surface of the layer 22 are removed. Therefore, surface resistance measurement can be performed in a state where the surface resistance is reduced with a little probe loads which do not produce stress strain in the semiconductor substrate.
Patent JP-S51114849-A (JP)
Title: Dc signal amplifier circuit
Inventor: KATOU KAZUO
IPC: H03F3/00
Filed: 1975-04-02
Abstract: PURPOSE:Make the bias source for compensating offset voltage of DC signal amplifier circuit a high impedance.