baber/WOPTO huggingface dataset:
Patent JP-S6392292-A (JP)
Title: Operation control method of dc motor
Inventor: KUBOKURA KUNIAKI
IPC: H02P7/29
Filed: 1986-10-03
Abstract: PURPOSE:To perform constant-speed control at low loss and high stability, by a method wherein duty of a power element is controlled by result of comparison of current feedback voltage with speed feedback voltage. CONSTITUTION:If a power transistor 2 is turned on, current IL flows through a coil 3, a capacitor 6, a motor 4 and a current detecting resistor 5. If the power transistor 2 is turned off, the current IL circulates in a diode 7. A comparator 9 for PWM oscillation controls duty of the power transistor 2 according to signal of current feedback voltage V9 subtracted by rotational speed feedback voltage V4 of the motor. In this constitution, constant-speed control can be performed at low loss and high stability.
Patent JP-H04116253-A (JP)
Title: Piston for internal combustion engine
Inventor: NAGATA TADASHI
IPC: F02F3/00
Filed: 1990-09-06
Abstract: PURPOSE:To keep the rigidity of boss sections high and prevent the transfer of high heat to the boss sections by connecting the back section of an apex and the inner end upper sections of the boss sections with a reinforcing wall in the direction nearly perpendicular to the axis of a piston pin, and forming the portion from the center of the apex to piston ring grooves thick. CONSTITUTION:Pin holes 23a to be coupled with a piston pin 10 are formed on boss sections 23 of a piston 20, and the inner end upper sections of the boss sections 23 and the back section of an apex 22 are connected by a reinforcing wall 26 extended in the direction nearly perpendicular to the axis of the piston pin 10. The portion (a) from the center of the apex 22 of the piston 20 to piston ring grooves 24, 25 is formed thick, and the thickness t2 of each reinforcing wall 26 is set smaller than the thickness t1 of the portion (a). The rigidity of the boss sections is kept high, the transfer of high heat to the boss sections is prevented, and the occurrence of adhesive wear between the inner periphery of a pin hole and the outer periphery of the piston pin 10 can be prevented.
Patent JP-H0879174-A (JP)
Title: Optical communication equipment
Inventor: ARAKI TOMOHIRO
IPC: H04B10/11
Filed: 1994-09-05
Abstract: PURPOSE: To greatly increase the transmission output and reduce the weight of an optical communication equipment by optically amplifying each branch laser signal light subjected to phase control up to an output level necessary for transmission by the use of an optical amplifier and transmitting the amplifier signal light through a small-sized telescope. CONSTITUTION: The laser signal light emitted from a main oscillation laser part 1 is branched off into many laser signal beams by a branching device 2 and led to the phase controllers 4-1 to 4-9 via the optical fibers 3-1 to 3-9 respectively to undergo the phase control. Then the laser signal beams which are controlled by the controllers 4-1 to 4-9 are led to the optical amplifiers 5-1 to 5-9 and optically amplified up to the necessary output levels respectively. These amplified signal beams are led to the small-sized telescopes 6-1 to 6-9 and sent to the opposite party side of communication.  In regard of these phase control operations performed by the phase controllers 4, the phase difference caused by the optical path length difference is corrected so that the reduction of light quantity due to the mutual interference of light beams that is caused by the phase difference of optical antennas can be minimized in a remote place.
Patent JP-H0680013-A (JP)
Title: Outside air introducing device for vehicle
Inventor: FUNAKOSHI KEIICHI
IPC: F24F1/00
Filed: 1992-09-02
Abstract: PURPOSE:To provide an outside air introducing device of a vehicular air conditioner by which an exclusive possession area of the floor surface can be reduced to the possible minimum level. CONSTITUTION:In a vehicular air conditioner unit 11, an outside air filter to introduce outside air from the floor surface 13 is composed of at least two filters 16a and 16b partitioned in an outside air introducing direction, and is constituted so as to be inserted in/taken out from an opening 18 on the side surface of the unit. The outside air filter 15 can be removed by taking out one by one the respective filters 16a and 16b taken out from the unit. In order to take out the next filter easily, after both the filters are connected to each other beforehand, for example, by means of magic tapes 23a and 23b, if connection is released when the filter 16a is taken out, operation becomes effective. When the filters are pushed outward elastically by using packings 21 and 22, removal becomes easy.
Patent JP-H02109587-A (JP)
Title: Shaving head for drive shave apparatus
Inventor: UERUNAA MESHINGAA
IPC: B26B19/04
Filed: 1989-09-08
Abstract: PURPOSE: To enable a shaving wheel to follow up the bending action of a lower blade to which shaving pressure is applied and to be easily detached by changing elasticity to a tongue part at the lengthwise terminal part of a frame according to different functions such as the configuration and form of the tongue part. CONSTITUTION: Tongue parts 12 and 13 are made elastic, the attachment of a freely exchangeable frame 3 to a shaving head 1 is provided in the style of an opening 14, and this opening is engaged with the section of a hook-shaped projecting part 15. The hook-shaped projecting part is provided on an inner surface 16 of a frame 1 for the shaving head, and the opening and the projecting part can be fitted only in vertical action but there is no action in the operating direction of the lower blade as slide fitting. Therefore, the frame and the shaving wheel are made correspondent only in the bending action in the direction of arrow A or in the opposite direction.  The height of the opening 14 is a little more than a movable amount B of the lower blade 5, to which shaving pressure is applied, and limited in downward direction while engaging the lower edge of the frame with the upper edge of the frame for the shaving head.
Patent JP-S6295034-A (JP)
Title: Optical signal receiver
Inventor: OGIWARA SATOSHI
IPC: H04B10/60
Filed: 1985-10-22
Abstract: PURPOSE:To always maintain the S/N of a receiving signal in the best state, by selecting a photodetector existing within a range in which its S/N is improved, from among plural photodetectors. CONSTITUTION:The titled receiver is provided with a multiplexer 2 for selecting one in a light receiving part 1 and inputting a signal from its light receiving part, a band pass filter 3 for cutting other frequency than a specified frequency, AC coupling amplifiers 4, 10, a signal level measuring part 5 for measuring the level of an amplified signal, a control part 6 for determining from which light receiving part the signal is selected as a receiving signal and also storing a noise level corresponding to the number of pieces of the light receiving part, a signal selecting part 7 for making a signal from the selected light receiving part pass through, a signal adding part 8 for adding analogously the inputted signal, a demodulating part 11 for demodulating its added signal after it passes through a band pass filter 9 and the AC coupling amplifier, and a waveform shaping part 12 for shaping a waveform. In this way, the subsequent signal is formed by adding its level in order of a larger signal level from the photodetector, and selecting only the photodetector at the time when the S/N of that time becomes the highest.
Patent JP-2001059172-A (JP)
Title: Film forming device and film forming method
Inventor: FUJII HIDEO
IPC: G02B1/11
Filed: 1999-08-20
Abstract: PROBLEM TO BE SOLVED: To provide a film forming device capable of obtaining various film compositions and film constitutions, efficiently producing a desired thin film in a short time and easily forming a thin film with a gradient refractive index in particular and a film forming method using this film forming device. SOLUTION: A film forming device 1 has a chamber 2, a holding part 4 holding a substrate 3, a film thickness gauge 5, a shutter 6, a 1st material feeding source 7, a 2nd material feeding source 8, a driving system 11 and a controlling means 12. The 1st material feeding source 7 is fixed and disposed to the bottom part of the chamber 2. The 2nd material feeding source 8 is provided with the driving system 11 and can be moved in the vertical direction to the film forming face in the substrate 3.
Patent JP-S6388120-A (JP)
Inventor: MIRUTON HARORUDO SHIETSUPUSU
IPC: C07C43/295
Filed: 1987-09-18
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-H0397769-A (JP)
Title: Recording liquid
Inventor: TAKIMOTO HIROSHI
IPC: C09D11/00
Filed: 1989-09-11
Abstract: PURPOSE:To obtain a recording liquid for ink jet recording and writing tool containing a water soluble dye, aqueous medium and specific compound and capable of providing printing excellent in recording characteristics, storage stability, light resistance of recording image, ozone resistance, weather resistance and water resistance. CONSTITUTION:The aimed recording liquid containing (A) a water soluble dye (e.g. C.I. Direct Black-17), preferably of 2-8wt.%, (B) an aqueous medium (e.g. water, ethylene glycol, etc.), preferably of 10-50% and (C) a compound (e.g. compound expressed by formula II) expressed by formula l [X is R, -SO3M (M is alkali metal, ammonium or amine salts), -COOM, alkyl, alkoxy, amino, acylamino or -NHCH2SO3H], preferably of 2-5wt.%.
Patent JP-S6389633-A (JP)
Title: Apparatus for producing high-purity aluminum
Inventor: OTSUKA YOSHITATSU
IPC: C22B21/06
Filed: 1986-10-02
Abstract: PURPOSE:To deposit high-purity Al at a high yield around a rotary cooling body by putting molten Al into a crucible provided with plural baffle plates in the axial direction on the inside surface and an annular member for preventing air inclusion thereon, inserting the rotary cooling body into the central part thereof, and rotating said body thereby stirring and cooling the molten Al. CONSTITUTION:8-16 sheets of the baffle plates 4 are provided in the longitudinal direction on the inside surface of the crucible 2 and the annular member 15 for preventing air inclusion is provided thereon. The device is so constituted that the top ends of the baffle plates 4 and the member 5 are submerged under the bath surface of the molten Al 6 when the molten Al is put into the crucible 2. The inverted circular conical-shaped rotary cooling body 3 which is rotated by a rotary shaft 7 is then inserted into the molten Al and is rotated. The oxidation of the molten Al 6 to form Al2O3 by the inclusion of air into the molten Al is prevented by the presence of the baffle plates 4 and the annular member 5 and the relative speed between the surface of the body 3 and the molten Al is increased. The extremely high-purity Al is thus deposited at the high speed on the surface of the body 3 while the oxidation loss of the molten Al 6 is decreased.
Patent JP-H1082768-A (JP)
Title: Method and equipment for ultrasonic flaw detection
Inventor: TAKADA HAJIME
IPC: G01N29/44
Filed: 1996-09-05
Abstract: PROBLEM TO BE SOLVED: To eliminate erroneous indication of defect due to external noise while decreasing the number of sheets of C scope, by recording C scope with reference to the elements of a matrix only when it is judged that a defect is present. SOLUTION: Respective outputs from an AND circuit 20 are delivered to an OR circuit 21 which outputs a binary signal indicative of a decision result that an erroneous indication of error due to an external noise is not contained. Output from the OR circuit 21 is delayed through a delay circuit 22 by a time equal to a specified times of ultrasonic wave transmitting/receiving period and delivered to a two-dimensional image memory 23. Upon receiving a delayed signal indicative of presence of a defect from the delay circuit 22, the two-dimensional image memory 23 outputs each stored content, in the form of a digital value or an image signal, to an image recorder 24. Consequently, only such part of C scope as really having a defect can be recorded in the image recorder 24.
Patent JP-H04116809-A (JP)
Title: Iron core of transformer
Inventor: ISHIHARA KENJI
IPC: H01F27/245
Filed: 1990-09-07
Abstract: PURPOSE:To enable the title transformer iron cores to be composed making less noise without deteriorating the magnetic characteristics by a method wherein the title transformer iron core is composed in a manner that the number of one-time laminated iron core comprising low magnetostrictive material is less than that of one-time laminated iron core composed of the grain oriented silicon steel plates. CONSTITUTION:A laminated layer iron core 11 comprising laminated layer of grain oriented silicon steel plates 11a is arranged in the central part and then laminated layer iron cores 12 comprising laminated 6.5% silicon steel plates 12a as low magnetostrictive materials are arranged covering almost the same sectional space as that of the laminated iron core 11 so as to compose an assembled iron core 10. At this time, within the laminated layer iron cores 11, 12, respective grain-oriented silicon steel sheets 11a and 6.5% silicon steel sheets 12a are successively laminated assuming the one-time laminated sheet numbers per layer comprising both leg parts and upper and lower yoke parts to be one or several sheets while the number of the 6.5% silicon steel plates 12a of the laminated iron cores 12 per layer is less than that of one-time laminated sheet per layer of the grain oriented silicon steel plates 11a of the laminated iron cores 11.
Patent JP-2000066031-A (JP)
Title: Assembling tool of optical connector
Inventor: TAKAYAMA KAZUHIRO
IPC: G02B6/00
Filed: 1998-08-21
Abstract: PROBLEM TO BE SOLVED: To provide an assembling tool of an optical connector permitting to easily assemble an optical connector by hand work in a short time without using a grinding device at a laying site of an optical line. SOLUTION: This assembling tool is constituted so as to hold a ferrule 19 for inserting an optical fiber therein to be freely attachable and detachable, to position a fiber holder 12 for gripping the optical fiber projected from the end face of the ferrule by the rear part, and to have a gripping part 22 for gripping a moving member 10 to freely move in the 1st direction and the optical fiber extended from the ferrule. In this case, this tool is provided with a turning member 20 which is turned around the axis parallel to the 1st direction and sags the optical fiber, and a cutting member 30 which is arranged between the moving member 10 and the gripping part 22 to freely move in parallel to the 1st direction and cuts the optical fiber in a sagged state.
Patent JP-H0975920-A (JP)
Title: Portable water purifying device and housing device for its disinfectant
Inventor: IMAI MASAYUKI
IPC: C02F1/28
Filed: 1995-09-13
Abstract: PROBLEM TO BE SOLVED: To make it possible to reduce a size, to continuously suck and purify the water of a water source and pour out the water by a simple manual operation. SOLUTION: The entire part is composed to a pen type and the captioned number 1 is its front body. The water purifier consists of a grippable cylinder 10 and has a water suction part 2 on its front end side. The water intake part 2 has a stop valve 3. The captioned number 5 denotes its rear body and consists of a grippable cylinder 50 which has a water pouring port 51 on its base end side. A piston 6 is mounted concentrically thereon. This piston 6 has a water inflow port 61 on its front end face and an opening for insertion of the cartridge at its base end face, respectively, and a purifying cartridge 8 is mounted therein. The piston 6 is inserted into the front body 1.  The piston 6 is actuated forward and backward in the front body 1 by the manual operation to push and pull the rear body 5 with respect to the cylinder 10, by which the water is continuously sucked from the suction part 2. The sucked water is purified through the purifying cartridge 8 and the purified water is poured out of the pouring port 51.
Patent JP-H04116402-A (JP)
Title: Minute-gap measuring apparatus
Inventor: KANEKO REIZO
IPC: G01B9/02
Filed: 1990-09-07
Abstract: PURPOSE:To improve the measuring accuracy of a minute gap by providing a pulse-light emitting means which makes a semiconductor laser emit pulse light. CONSTITUTION:Pulses P are outputted from a pulse generator 10 at a constant time interval. A laser driving circuit 11 drives a semiconductor laser 1 every time the pulses P are outputted. Therefore, emitted light 15 from one output edge of the semiconductor laser 1, reflected light 17 and an optical output 18 from the other output edge of the semiconductor laser 1 becomes the intermittent lights. The optical output 18 is detected with a photodetector 3. The detected signal (a) is amplified in an preamplifier 12 and sent into a box-car integrator 13. The integrator 13 performs synchronous detection for the signal (a) indicating the optical output 18 with the pulses P from the pulse generator 10 as a reference signal. The detected signal undergoes peak holding, and a signal A is outputted. A minute interval can be measured with this signal A. In this way, heating of the semiconductor laser can be largely decreased, and the highly accurate measurement of the minute gap can be performed.
Patent JP-S6295705-A (JP)
Title: Reproducing device for digital signal
Inventor: SATO KENICHI
IPC: G11B5/00
Filed: 1985-10-22
Abstract: PURPOSE:To attain the effective use of a dynamic range of an A/D converter by changing the detected current supply to a magneto-resistance element from a DC voltage supply circuit and a comparison reference voltage of the A/D converter interlockingly. CONSTITUTION:An output voltage of the DC voltage source circuit 13 is varied by a control signal from an externally controlled terminal 14, a detection current is fed to MR elements (8-1)-(8-n) through each resistor R and fed to a comparison reference voltage input terminal 15 of the A/D converter 11. The output voltage of the circuit 13 is changed by using the control signal from the terminal 14 to change the reproducing sensitivity of the MR head and the converting sensitivity of the converter 11 is changed at the same time in response to the reproducing sensitivity of the head. Further, the dynamic range of the converter 11 is used effectively.
Patent JP-S60128437-A (JP)
Title: Heat-developable color photosensitive material
Inventor: ISHIKAWA HISASHI
IPC: G03C8/40
Filed: 1983-12-16
Abstract: PURPOSE:To improve the shelf stability of a raw photosensitive material after coating and drying by forming a photographic constituent layer contg. photosensitive silver halide, an org. silver salt, a specified reducing agent, a dye providing substance which is an active site substituted coupler, and a binder on a base. CONSTITUTION:At least one photographic constituent layer is formed on a base. The layer contains photosensitive silver halide, an org. silver salt, a reducing agent whose precursor is a compound represented by the formula (where R<1> is H, alkyl, aryl or a heterocyclic residue, R<2> is H, alkyl, aryl, amino, a heterocyclic residue or the like, B is sulfo or -SO2-R<3>, and R<3> is amino, alkyl, aryl or a heterocyclic residue), an active site substituted coupler having an immobilizing group at the substituted part and forming a diffusible dye, and a binder.
Patent JP-H04116897-A (JP)
Title: Wrong insertion preventive mechanism for electronic machine card
Inventor: SUE HIDEO
IPC: H05K7/14
Filed: 1990-09-06
Abstract: PURPOSE:To prevent the wrong insertion of an electronic machine card and the breakdown of a connection connector, by changing the engaging position of a protruding part for guide of an electronic machine card and a guide groove of a cage which engage with each other, for every electronic machine cards. CONSTITUTION:Electronic machine cards 1a, 1b are guided by guide rails 7a-7d, 8a-8d installed on a front bar 6 of a cage 5, and connected by engaging connector 9a-1 or the like on a back board 10 side with connectors 4a-1, 4a-2, 4b-2, etc., on the card 1a, 1b side. When the connectors of the cards 1a, 1b are mutually different, protrusions 3a, 3b installed on the respective front panels 2a, 2b are engaged with the respective guide grooves 11a, 11b installed on the front bar 6 of the cage 5. Since the engaging positions of the protrusion 3a, 3b for guide and the guide grooves 11a, 11b are changed for every cards 1a, 1b whose connectors are mutually different, the wrong insertion of the cards 1a, 1b into the back board 10 can be prevented.
Patent JP-H04117133-A (JP)
Title: Power supply switching circuit
Inventor: SHIMODA SADAYUKI
IPC: G05F1/00
Filed: 1990-09-05
Abstract: PURPOSE:To lengthen service life of a sub-battery power supply for applying a voltage on one input terminal by feeding the positive power supply of an inverter from an output terminal, providing transistors, respectively, between source and drain of a switching transistor and a substrate, and driving the switching transistor and respective transistors at the input or output terminal of the inverter. CONSTITUTION:When main power supply at an input terminal 1 is removed and only a sub-power supply is applied on an input terminal 2, input terminal of an inverter 4 goes LOW and a voltage is applied from the sub-power supply onto an output terminal 6 thus supplying a voltage to the inverter 4. Consequently, output of the inverter 4 is inverted to High level. As a result, a transistor 8 is turned OFF and a transistor 9 is turned OFF and thereby a switching transistor 5 is turned OFF to short-circuit the electrode on the output 6 side of the switching transistor 5 and a substrate thus forming a parasitic diode having an anode and a cathode, respectively, on the input terminal 1 side and the output terminal 6 side. Since the diode has a positive potential at the output terminal 6 and a ground potential at the input terminal 1, it is biased reversely and no current flows from the input terminal 2 toward the input terminal 1.
Patent JP-S61262495-A (JP)
Inventor: MITSUSHIERU KARUZENSUKI
IPC: B23Q3/10
Filed: 1985-10-22
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-S60130429-A (JP)
Title: Joining method of plastically deformable sheet
Inventor: SANBE YOSHIMASA
IPC: B21D39/03
Filed: 1983-12-16
Abstract: PURPOSE:To obtain inexpensively and with high productivity strong joining by burring two pieces of sheet materials overlapped on each other at the same time and compressing the formed burred-cylindrical body in its axial direction. CONSTITUTION:Sheet materials (a), (b) to be joined together are overlapped and set on lower dies 4a, 4b, to sandwich them between the dies (a), (b) and an upper blank holder 2 by lowering a ram. Next, a burring punch 1 touches the sheet (a) to form a cylindrical part (burring part) while piercing a die hole (g) in the materials (a), (b) and expanding it. Further, the dies 4a, 4b descend along the slant surface of a cam 8 while expanding the die hole (g), and the burring part (c) of materials (a), (b) descends at the same time. Meanwhile, the part (c) is sandwiched between a counter punch 3 and the holder 2 and is compressed by them, to form a joining part having a curling shape or a complexly buckling shape, or a combined shape of them.