baber/WOPTO huggingface dataset:
Patent JP-H04307995-A (JP)
Title: Radio wave absorber
Inventor: MATSUZAKI EIICHI
IPC: H05K9/00
Filed: 1991-04-05
Abstract: PURPOSE:To obtain a radio wave absorber having small frequency dependency of permittivity by composing the absorber of a prefoamed bead, a binder, and graphite having special mean particle size and special carbon content. CONSTITUTION:A resin-based binder and graphite having 5-30mum of average particle size and 97% or more of solid carbon are mixed with prefoamabed beam such as prefoamed polystyrene bean, prefoamed polyethylene bead, etc., and mixed. Then, after obtained mixture is filled in a mold, molded in a form of a desired shape, it is dried by hot blast to form a radio wave absorber 1. The absorber 1 is laminated on a board 2 to form a radio wave absorber T. Thus, frequency dependency of permittivity is reduced, radio wave absorption of a frequency range near 30-1000MHz is averaged, and radio wave absorption of the low frequency range near 30MHz is improved.
Patent JP-H06289440-A (JP)
Title: Optical scanner
Inventor: YASUDA KATSUMI
IPC: G02F1/313
Filed: 1993-03-31
Abstract: PURPOSE:To provide the optical scanner of an electrooptical deflection type having high efficiency and photoresolving power. CONSTITUTION:The refractive indices of a double refractive optical material 2a and optical material 2b are both equaled and the periodic structure of a diffraction grating 2 is not sensed when the incident light on an optical waveguide 1 is propagated as, for example, a polarization mode (a), This light advances rectilinearly in the optical waveguide 1 without being diffracted. The polarization mode is changed from (a) to (b) by an electrooptical effect when an electric field is generated in the optical waveguide 1 by impressing a prescribed voltage to an electrode group 3. Consequently, the double refractive optical material 2a and the optical material 2b have eventually the refractive indices different with the polarization mode (b) and the light senses the periodic structure of the diffraction grating 2 and is immediately diffracted so as to be bent in the progression direction. Then, the light scanning is executed by changing over the position where the voltage of the electrode group 3 is impressed.
Patent JP-H11248891-A (JP)
Title: Radiation image conversion panel
Inventor: TAZAKI SEIJI
IPC: C09K11/00
Filed: 1998-03-05
Abstract: PROBLEM TO BE SOLVED: To improve the resolution of an image by a constitution in which a phosphor layer is formed by filling numerous fine pores of an aluminum anodic oxidation coating with stimulable phosphors, and the fine pores have at least specific average diameter specific, depth and specific rate of open area. SOLUTION: A stimulable phosphor layer comprises a porous aluminum anodic oxidation coating and stimulable phosphors filled in fine pores of the coating. In the aluminum anodic oxidation coating, the average diameter of the fine pores is 0.05 to 0.3 μm the depth is 100 to 300 μm and the rate of open area is 70% to 90%. The method for filling the fine pores of the aluminum anodic oxidation coating with the stimulable phosphors is conducted by a vapor deposition method and a sputtering method, etc. In addition, light metals such as Mg, Al and Ti, for example, glass such as constituted mainly of Si and O2 and ceramics are used as a material of a support.
Patent JP-S61231704-A (JP)
Title: Permanent magnet
Inventor: HAYASHI MITSUHARU
IPC: A61N2/08
Filed: 1985-04-05
Abstract: PURPOSE:To obtain a permanent magnet which can be adhered by merely giving heat by a method wherein a hot melt bonding agent is mixed in a magnetic material, and they are molded and magnetized. CONSTITUTION:A permanent magnet 8 is a plastic magnet wherein a hot melt bonding agent is mixed. The hot melt bonding agent is fused by applying heat using a hot press and the like, and the permanent magnet 8 is adhered and fixed to the surface of a cushion material 2. Said hot melt bonding agent is composed of thermoplastic resin, an adhesion-giving agent, wax and the like, and a multicomponent bonding agent is obtained as occasion demands by adding an anti-oxidation agent and a filler.
Patent JP-S62230224-A (JP)
Title: Phase synchronizing oscillation circuit
Inventor: MAKINO SHINYA
IPC: H03L7/08
Filed: 1986-03-31
Abstract: PURPOSE:To attain no adjustment of the titled circuit and to reduce the propagation of jitter by constituting the circuit by digital circuits only, counting the phase difference between an input clock and an output clock as to lead/lag phases and correcting the phase of the output clock by a half of them. CONSTITUTION:A clock signal F inputted from a clock input terminal l is compared with an output clock signal E by a phase comaprator 3, and the pulse width of lead/lag phase error signals G,H is counted respectively by counters 7,8. In shifting the output right by one bit, the vlaue is halved and inputted to a subtractor 9 and an adder 10. Thus, the response is halved and even when jitter is included in the input clock signal, since the fluctuation by one phase correction is halved, the propagation of jitter is reduced.
Patent JP-S56169242-A (JP)
Title: Magnetic video recorder and reproducer
Inventor: KANAZAWA YOSHIKAZU
IPC: G11B15/02
Filed: 1980-05-28
Abstract: PURPOSE:To dry the dew of a rotary drum quickly, by foring only the rotary drum to rotate once a dewing detecting circuit detects a dewing state. CONSTITUTION:When a dewing sensor 2 detects a dewing state, its resistance value increases and while the base of a transistor TR6 goes to a high level, the TR6 turns on. The conduction of the TR6 turns off a TR10 and a TR14 turns off to hold its collector at a low level. Then, an unloading circuit 30 places a tape in an unloading state and also opens a switch 21. A low-level signal from the collector of the TR14, on the other hand, sets the base of a TR23 to a low level via a diode 18. Therefore, the TR23 turns on to hold its collector at a high level, and with its high-level signal, a driving circuit 26 rotates a rotary drum. Consequently, the dew of the rotary drum is dried rapidly, so the damage of the tape is prevented.
Patent JP-S60216048-A (JP)
Title: Combustion controller for engine
Inventor: NAGAISHI HATSUO
IPC: F02D41/24
Filed: 1984-04-11
Abstract: PURPOSE:To improve the operation performance of an engine by increasing the accuracy of the intake negative-pressure data by outputting the min. time correction signal necessary for the detection of the atmospheric pressure only in a prescribed operation state where the variation of the intake negative-pressure is little and properly controlling the combustion state at all times. CONSTITUTION:According to the program, a correction signal Sn is outputted only in the C state where the variation of the intake negative-pressure Pm is little, and the data of the atmospheric-pressure or the intake negative-pressure is stored as memory value after the start of outputting the correction signal Sh or after the lapse of 10ms from the stop of output. Therefore, the error precision of the intake negative-pressure data during the correction time can be reduced, and the atmospheric pressure or the intake negative-pressure can be certainly detected by an intake negative-pressure sensor 7 in the min. time. The intake negative- pressure at present can be correctly calculated with the intake negatve-pressure Pm as the corrected intake negative-pressure Pmh. A control unit 9 controls the fuel feeding amount and the ignition timing on the basis of the corrected intake negative pressure Pmh, and combustion state can be controlled precisely.
Patent JP-H01247373-A (JP)
Title: Method for winding up yarn
Inventor: HIRAI KAZUYASU
IPC: B65H54/08
Filed: 1988-03-28
Abstract: PURPOSE:To make the yarn winding speed of a package constant by changing the rotation of a take-up roller shaft in accordance with the change of input and increasing the rotating speed of a take-up roller by the amount of reducing the rotating speed of a traverse cam because of the increase in package diameter. CONSTITUTION:The rotation of a motor shaft 5 is transmitted to and rotates the planetary gears 20, 20, 20 of a differential gear 7 via a supporting member and rotates a take-up roller shaft 6 via a sun gear 19 to rotate a take-up roller 3. As a package diameter is increased by yarn layers wound up on a package 1 by receiving that rotation, the rotation of the package 1 receiving the rotation transmission of the take-up roller 3 is lowered. The change in this rotation is transmitted to a traverse cam 10 via a toothed belt 13 and further to the outer gear 17 of the differential gear 7 via gears 14, 15, 16 and a toothed belt 18 to rotate same, which increases the rotating speed of the take-up roller shaft 6. Thereby, the take-up roller 3 is accelerated enabling a yarn winding speed to be constant.
Patent JP-S58189241-A (JP)
Title: Production of microporous film
Inventor: KONDOU YOSHIKAZU
IPC: C08J9/26
Filed: 1982-04-30
Abstract: PURPOSE:To obtain industrially easily and inexpensively a porous film having excellent performance and mechanical strength, by forming a film from a soln. of a mixture of a film-forming polymer, a polymer miscible with, but incompatible with said film-forming polymer, and an additive, and then removing the additive. CONSTITUTION:A film is formed from a soln. of a mixture of a film-forming polymer (A) such as an acrylic polymer, modacrylate polymer or cellulose acetate, a polymer (B) miscible with, but incompatible with the polymer A (e.g. cellulose acetate or a styrene polymer when the polymer A is acrylic or modacrylate polymer) and an additive (C) such as Turkey red oil. Then the additive is removed before or after the film is stretched at least uniaxially, to produce a microporous film having microvoids in the polymer A and macrovoids formed by phase separation at the interface between polymers A and B.
Patent JP-S63240536-A (JP)
Title: Retrieval mark detector
Inventor: IMAI RYOICHI
IPC: G03B21/11
Filed: 1987-03-27
Abstract: PURPOSE:To execute a retrieval operation of a microfilm in the best state by displaying on a display means the fact that an output value of a photodetecting member is unchangeable when an input value of a light source for detecting a retrieval mark is varied. CONSTITUTION:A retrieval mark detector increases or decreases an output value of a photosensor 22 so that it becomes a correct value, and sets it to the correct value based on an output of the photosensor 22, while varying a supply current to an LED 15 by a minute step current. However, when the output value of the photosensor 22 is varied even if an input value of the LED 15 is varied, to put it in the concrete, an abnormality of the photosensor 22, an abnormality of the LED 15, an abnormality between optical paths of the photosensor 22 and the LED 15, etc. are detected, and a microcomputer 32 sends out this detecting signal to a display means consisting of an alarm 37 and an indicator 38. In such a way, abnormal heating, etc., of a light source are prevented, and the retrieval operation can always be executed in the best state.
Patent JP-S63238999-A (JP)
Title: Driving device for machine press for forming powder
Inventor: ARITOSHI HIROYUKI
IPC: B30B11/02
Filed: 1987-03-27
Abstract: PURPOSE:To perfectly synchronize each punch and to prevent the defective crack of a forming body by installing the driving system of a lower sub-punch on the load cell box frame of a lower main punch and stopping the driving system of the lower sub-punch at formed extrusion time. CONSTITUTION:The rotary force of a motor 1 is transmitted to a speed reducer 2 shaft 3. The rotary force of the shaft 3 is transmitted to a load cell box 7, which is moved in the vertical direction. The vertical directional movement of the load cell box frame is transmitted to a load cell 9, rod 10, die plate 11, lower main punch holder 12 and lower main punch 13 and to the forming body inside the die. On the other hand, a nut 28 is fitted to a load cell box 29, which is fitted by a linear guide 33, hence the rotation force of a motor 21 is converted into the movement in the vertical direction of the load cell box 29. This vertical movement of the load cell box 29 is transmitted to the forming body inside the die via load cell 30, lower sub-punch holder and lower sub-punch.
Patent JP-S56169788-A (JP)
Title: Steel sheet useful as welded can
Inventor: HIGUCHI YUKINOBU
IPC: C25D11/38
Filed: 1980-06-03
Abstract: PURPOSE: To provide a steel sheet with good properties well-applicable in a can- producing process using an electric resistance welding method, by forming an Ni- plated layer having a specified thickness on the surface of the steel sheet and then a thin chromate film layer on the surface.  
     CONSTITUTION: The surface of a steel sheet is electroplated with an Ni layer at an adhesion rate of 150W2,500mg/m 2  per one side. Residuals on the surface from the Ni plating bath are removed by washing or the like. The steel sheet is then chromated in an aqueous solution of anhydrous chromic acid, a chromate or a perchromate, or these mixture, so as to form a chromate coat of 2W15mg/m 2  calculated as Cr per single surface on the Ni-plated layer. The obtained steel sheet useful as a main vessel for a welded can is excellent in corrosion resistance, weldability, coatability and corrosion resistance after painting, and also unexpensive. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S52156776-A (JP)
Title: Production of porous membrane
Inventor: DOI YOSHINAO
IPC: C25B13/08
Filed: 1976-06-24
Abstract: PURPOSE: To produce the porous membrane of low electric resistance and having sufficient mechanical strength, by melt forming the mixture of the specific quantities of each of an inorganic finely powdered substance, an organic liquid substance of solubility parameter (SP value) of 8.4 - 9.9 and a polyolefin resin of the weight-average molecular weight below 300,000 and the number-average molecular weight above 150,000, and then, by extracting the organic liquid substance. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S63237962-A (JP)
Title: Kanji (japanese) character generator
Inventor: SHIMADA TETSUYA
IPC: B41J3/01
Filed: 1987-03-27
Abstract: PURPOSE:To simplify an external decode circuit by effectively utilizing a memory area by a method wherein a space area as large as the 2 factorial number of characters existing in a regular area easy to be decoded is used, and a pattern consisting of one character is stored therein. CONSTITUTION:In the case where a size of a pattern of one character is N dots by depth in a scanning direction, an area is divided by a minimum number 2<n> of 2 factorial larger than N, and each character pattern consisting of one character is at first distributed to those areas. Then, those clearance areas E1-E3 are further collected as many as a minimum number 2<n> where (2<n>-N)X2<n>>=N holds and a character pattern P4 of another one character content are divided by P4-1-P4-3 to be respectively stored therein. At that time, an excess area among the clearance areas E1-E3 is made a unused area. Therefore, many character patterns can be effectively stored and further, a decode circuit to be appended outside can be also comparatively simply constructed.
Patent JP-S53761-A (JP)
Title: Hair beauty device
Inventor: TSUCHIYA MITSURU
IPC: A45D20/50
Filed: 1976-06-22
Abstract: PURPOSE: To provide the hair beauty device of compact and light weight capable of performing brushing simply and comfortable, to culture the beautiful and lively hairs by promoting circulation of blood giving appropriate stimulus to the head skin as well as to dry the skin in a short time. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S57189163-A (JP)
Title: Developing device
Inventor: SAWAYAMA NOBORU
IPC: G03G15/08
Filed: 1981-05-16
Abstract: PURPOSE:To eliminate automatically an offset phenomenon of a developing agent, by providing a mechanism which controls a feeding amount in a direction crossing with a feed in a developing agent circulating direction in accordance with an offset of said agent distribution in a transverse direction. CONSTITUTION:A developing device provided with a circulating type stirring mechanism for developing agent having a mechanism which feeds a developing agent in turn, is provided with a developer intake lower discharge orifice 13 right under a developer intake 9, and when the discharge orifice is closed, the developing agent is carried and discharged to a discharge orifice 12 at the opposite side through a path 10 from the intake 9 by a screw 11. On the contrary, when the discharge orifice 13 is not closed with the developing agent in a well 3 for developing agent, the developing agent is carried to a transverse and an offset of the developing agent at a discharge orifice 12 side for developing agent is prevented. By this way, the offset phenomenon of the developing agent is automatically eliminated by providing a lengthwise discharge orifice under the intake for developing agent.
Patent JP-S51149665-A (JP)
Title: Piling device of steel plate
Inventor: HIGO YOSHISUKE
IPC: B65H29/26
Filed: 1975-06-17
Abstract: PURPOSE: A puiling device of steel plate arranged at the end of conveyor, to automatically pile the steel plate sequentially, by utilizing flexing of the plate by own weight. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H03274318-A (JP)
Title: Burner
Inventor: AIHARA TOMOYASU
IPC: F02C7/16
Filed: 1990-03-23
Abstract: PURPOSE:To lower a wall temperature, and to improve thermal efficiency, antioxidation, thermal impact resistance by superposing a second wall on a first wall made of a porous heat resistant material having a connection hole of a thickness direction in a burner for a rocket engine, etc., providing a fuel supply passage, and forming a wall. CONSTITUTION:The wall of a cylindrical burner is formed in a double structure wall in which a first wall 1 is superposed in contact with the entire inner surface of a second wall 2 made of Hastelloy X. The wall 1 is formed of porous SiC fiber reinforced SiC. Both ends of the walls 1, 2 are coupled by a coupling plate made of Hastelloy X and bolts. Many holes are formed in parallel on the outer surfaces in contact with the walls 1, 2 along longitudinal and circumferential directions to form a fuel supply passage 3, and connected to a fuel cylinder. With this structure, a wall temperature is lowered, and its thermal efficiency, antioxidation and thermal impact resistance can be improved.
Patent JP-S62233043-A (JP)
Title: Bearing oil feeder for rotary electric machine with horizontal shaft
Inventor: SHIRATA SHINSAKU
IPC: F16N39/02
Filed: 1986-04-02
Abstract: PURPOSE:To shorten the start preparation time of a generator, by supplementing lubricant through an upper tank when the oil quantity of a bearing oil tank is reduced. CONSTITUTION:When a main machine is operated, then a valve 11 set on an oil feed pipe passage 7 is opened, and an automatic valve 20 set on a bypass pipe pasaage 19 is closed by signal through an oil level relay 21 set on a bearing oil tank 2, and so the whole feed oil quantity through an upper oil tank flows into the oil feed pipe passage 7. The lubricant is fed to the bearing oil tank 2, and is discharged to a lower tank from the oil feed pipe passage 7 and a leakage oil pipe 9. On the stop of the main machine, when the oil level of the bearing oil tank 2 is lowered and the oil level relay 21 is worked, then the automatic valve 20 is opened, and the lubricant 14 is supplemented to the bearing oil tank 2 via the bypass pipe passage 19 through the upper tank.
Patent JP-H04286740-A (JP)
Title: Method for joining optical disk substrate and hub
Inventor: OTSUKI TSUKASA
IPC: G11B23/00
Filed: 1991-03-15
Abstract: PURPOSE:To improve the tacky adhesive characteristic before setting and the adhesive strength after setting by adhering optical disk substrates and a hub by a curable tacky adhesive compsn. compounded with a specific unsatd. polyester oligomer, tacky adhesive acrylic polymer, polymn. initiator, and polyisocyanate. CONSTITUTION:The optical disk substrates 6 and the hub 5 are adhered by using the curable tacky adhesive compsn. compounded with the unsatd. polyester oligomer (A) obtd. by bringing a compd. (a) having a hydroxyl group, a cyclic acid anhydride (b) and epoxide (c) having an ethylenic unsatd. group into reaction, the tacky adhesive acrylic polymer (B), the polymn. initiator (C) and the polyisocyanate (D) and applying this compsn. on the substrates 6 and/or the hub 5. The compsn. is improved in aggregation power without impairing its curing property by being added with the polyisocyanate (D). Methanol, ethanol, 2-propanol and others are used for the compd. (a). Aliphat. polyvalent carboxylic anhydride, alicyclic polyvalent carboxylic anhydride, etc., are used for the cyclic anhydride (b).
Patent JP-S57189361-A (JP)
Title: Disc reproducing ciruit
Inventor: YOSHIOKA JIYOUJI
IPC: G11B9/06
Filed: 1981-05-19
Abstract: PURPOSE:To eliminate the need for cavity resonators for resonance circuits by adding the electrostatic capacity between a disc and the electrode of a reproducing stylus to the oscillation output of an oscillation circuit to provide an FM-modulated wave signal and subjecting this signal to FM demodulation. CONSTITUTION:The 1st oscillation circuit 10 transmits the oscillation output of a frequency f1 + DELTAf1 and the 2nd oscillation circuit 11 transmits the oscillation output of a frequency fD. On the other hand, a frequency conversion circuit 12 transmits a differential frequency signal of a differential frequency fx. The signal FM-democulated by the DELTAf1 corresponding to recording information is  outputted from the circuit 12. The output signal of the circuit 12 is removed of amplitude type noises, after which it is supplied to an FM demodulation circuit 14. Therefore, the circuit 14 fetches the signal corresponding to the DELTAf1 as a recording information reproducing signal by FM-demodulating the input signal of the frequency (f1 - f0) + DELTAf1 and transmits the same to an output terminal  15.
Patent JP-H03274635-A (JP)
Title: Manufacture of directly heated cathode
Inventor: TAKENAKA HIROAKI
IPC: H01J9/04
Filed: 1990-03-23
Abstract: PURPOSE:To prevent short circuit between a wire portion and a control electrode by tensilely fixing preset one of a group of heaters to cut off the wire portion, which is projected outside of leads, by means of electric spark. CONSTITUTION:For a coil heater 3a, preset one of a group of heaters is tensilely fixed and a wire portion 3b which is projected outside of leads 1a, 1b beyond fixed positions is cut off. At this time, the leads 1a, 1b to which the heater 3a is tensilely stuck are positioned depending on lower electrodes 6a, 6b. An upper electrode 5 is put in contact with the bottom of the heater wire portion 3b which is left outside of the leads 1a, 1b to turn a switch 8 on. Then, small electric spark is generated between the tip of the electrode 5 and the wire portion 3b to cut off the wire portion 3b from the bottom. As a result, there is no projection of the wire portion 3b and therefore no short circuit between the wire portion 3b and the electrodes 6a, 6b, and so a good directly heated cathode can be obtained.