baber/WOPTO huggingface dataset:
Patent JP-H0472903-A (JP)
Title: Low frequency sound emphasis circuit
Inventor: SATO HIROSUKE
IPC: H03G5/16
Filed: 1990-07-13
Abstract: PURPOSE:To reproduce a natural music sound by detecting a low frequency level from a signal whose low frequency component is emphasized and controlling a low frequency cut-off frequency of the signal subject to low frequency emphasis depending on the level so as to apply proper low sound frequency emphasis to the sound. CONSTITUTION:An input audio signal is given to a low sound frequency emphasis section 10 via a variable resistor VR1 in which an audio signal whose low sound frequency is emphasized is given to a low frequency level detection section 20 and a low frequency cut-off frequency control section 30. The low frequency level detection section 20 generates a control signal in response to the level of the low sound frequency component. The control signal is given to the low frequency cut-off frequency control section 30, which is controlled so that the cut-off frequency is increased as the level of the low sound frequency is higher. Thus, an output audio signal of the low sound frequency emphasis section 10 is outputted as an audio signal whose low sound frequency cut-off frequency is controlled in response to the control signal and given to a power amplifier.
Patent JP-H0348723-A (JP)
Title: Position detecting device
Inventor: HIMURO AKIRA
IPC: G01D5/245
Filed: 1989-07-17
Abstract: PURPOSE:To improve the resolution by detecting the quantity of relative displacement between two detectors as the absolute position of resolution equivalent to the absolute position of a periodic pattern in one pitch to the overall length of an aperiodic pattern. CONSTITUTION:A detector 23A can be displaced relatively to a scale 18 and generates a phase detection signal corresponding to its periodic pattern 20. A detector 23B can be displaced relatively to a scale 19 associatively with the detector 23A and generates an absolute position signal corresponding to its aperiodic pattern 21. Then a detecting circuit 32 finds the absolute position in one-pitch lambda units of the periodic pattern 20. Then a detecting circuit 25 finds the absolute value within a range of one pitch lambda of the periodic pattern 20. For the purpose, when the length of the aperiodic pattern 21 of the scale 19 is set to practical length with resolution of order of about one pitch lambda of the periodic pattern, the maximum measured length can be set within a range of practical use and the resolution is improved almost to that of an incremental system.
Patent JP-S6427737-A (JP)
Title: Brass material for metallic mold
Inventor: TAKEYA TOSHIYUKI
IPC: B22C9/06
Filed: 1987-07-23
Abstract: PURPOSE:To obtain a brass material for metallic mold having excellent strength and hardness and without development of any burr and unevenness in groove cutting work by containing the specific quantities of Ni and Cu and the balance Zn and ordinary impurities. CONSTITUTION:Composition of the brass material for metallic mold has <=5.0wt.% Ni, 55.0-72.0wt.% Cu and the balance Zn and ordinary impurities. By this method, as the metallic mold for forming lens and screen, the development of the burr, unevenness, etc., at the time of groove cutting work is prevented and accuracy and quality of the formed lens and screen are improved.
Patent JP-S6340265-A (JP)
Title: Manufacture of electrolyte retaining matrix for phosphoric acid fuel cell
Inventor: HAYASHI OSAMU
IPC: H01M8/02
Filed: 1986-08-05
Abstract: PURPOSE:To increase the permeability and retainability of phophoric acid without decrease in bubbling pressure by forming a matrix with paste obtained by mixing silicon carbide powder, polyetheretherketone powder, and a thickening agent in water. CONSTITUTION:An electrolyte retaining matrix is obtained by using highly heat resistant polyetheretherketone as a binder of silicon carbide filler. The content of polyetheretherketone is 5-20wt% of the silicon carbide filler. If the content is less than 5%, it is difficult to retain the form of the matrix. If the content is more than 20%, pores formed in the matrix is too small. Polyetheretherketone powder having a mean particle size of 3mum or less is used.
Patent JP-S6078186-A (JP)
Title: Gland packing for valve
Inventor: SUZUKI HISASHI
IPC: F16J15/18
Filed: 1983-10-04
Abstract: PURPOSE:To increase sealing effect by combining a hard packing and a soft packing and increasing the ratio of the hard packing in the part where a compression force acts strongly and making the friction force between a gland packing and a valve rod uniform and small. CONSTITUTION:A gland packing is tightened by a packing pressing ring 6 fitted onto the outer peripheral part of a valve rod 1 and superposed between the pressing ring 6 and a neck sleeve 7 for supporting the other edge, and used in the combination with a hard packing 8 and a soft packing 9. The hard packing 8 is formed by braiding tetrafluoroethylene resin fibers into lattice form, and the soft packing 9 is an asbestos braided packing containing tetrafluoroethylene resin. Since the hard packing 8 and the soft packing 9 are properly combined, the bulging-out phenomenon of the soft packing 9 is prevented by the hard packing 8, and the service life can be prolonged. Further, since the tightening force by the packing pressing ring 6 is sufficiently transmitted to each part, the tightening force for a valve rod is made uniform, and the sealing effect is increased, and the seizure due to the excessive tightening on the packing pressing side is prevented.
Patent JP-H0935146-A (JP)
Title: Processor for commodity sales registering data
Inventor: YAMAKAWA TERUKAZU
IPC: G06Q20/24
Filed: 1995-07-20
Abstract: PROBLEM TO BE SOLVED: To make it possible to execute credit paying processing plural times by one time of reading of a credit card and one time of inquiry to a master equipment. SOLUTION: Credit data answered from a master equipment 100 after the execution of credit paying processing can be updated by reflecting the contents of the current credit paying processing, the updated credit data are formed so as to be written in a rewritten card by a readable code through a scanner 15 and credit paying processing can be executed by using credit data read out from the rewritten card by the scanner 15, so that credit paying processing can be executed plural times through the rewritten card and one inquiry to the master equipment 100.
Patent JP-S6244915-A (JP)
Inventor: KOSAKA SHIGEO
IPC: H02J13/00
Filed: 1985-08-22
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-S6163991-A (JP)
Title: Magnetic disk device
Inventor: SUZUKI TOMIO
IPC: G11B23/03
Filed: 1984-09-05
Abstract: PURPOSE:To obtain a fixing mechanism as well as a seal of a dust cover which reduce the width of a magnetic disk device with simple constitution and without imparing a head positioning error, by using two parts to form a seal groove. CONSTITUTION:A seal groove is formed with a base 3 to which a spindle 1 and a carriage 2 are fixed and a bracket 9 having an L-shaped section at the base outer circumference. Then silicone rubber is supplied into the seal groove before a cover 6 is attached. This rubber is turned into an elastic matter and functions as a seal member. Therefore no stress if produced at a seal part and the high size accuracy is not required to the cover 6 nor the base 3. Furthermore, a stud 10 is put close to the inner surface of the cover 6 and serves as a guide. In such a way, the number of assembling processes can be decreased for a magnetic disk device.
Patent JP-H0527524-A (JP)
Title: Image forming device
Inventor: SAKURAI MASAAKI
IPC: G03G15/00
Filed: 1991-07-24
Abstract: PURPOSE:To always obtain a stable high-quality image without causing unevenness such as the ripple of density by changing developing contrast voltage only in a specified period. CONSTITUTION:Humidity is detected by an environment sensor 19, developing contrast potential Vcont corresponding to the humidity is obtained, and an image forming condition is set based on the obtained value. Between the papers in the middle of copying, a patch at a specified level is formed on a photosensitive drum 3 and the reflected light quantity from the patch is read by a photodiode, deviation  E from a set value E0 (=E0-E) is calculated and the set value of toner density C() is changed to C0+ C according to the calculated value. Besides to that, the Vcont is changed from V0 to V0+ V at which image density becomes appropriate. Provided that  C and  V are deviation and correction term in accordance with  E. Then, toner is supplied. By repeating the same control between the papers again, the image of the appropriate density without the ripple of density is always obtained.
Patent JP-H0470279-A (JP)
Title: Digital still camera
Inventor: TANIGUCHI NOBUYUKI
IPC: H04N5/238
Filed: 1990-07-11
Abstract: PURPOSE:To attain the photographing of high resolution in a character photographing mode by making a low pass filter withdraw outside an optical path in the character photographing mode. CONSTITUTION:When a switch Sp is turned into an ON-state, and a normal photographing mode is selected, a CPU 17 sends a control signal to an LPF withdrawing means 71 so as to arrange the LPF 70 on the optical path. Thus, in the normal photographing mode, a high frequency component is cut off. On the other hand, when the switch Sc is turned ON, and the character photographing mode is selected, the CPU 17 sends the control signal to the LPF withdrawing means 71 so as to withdraw the LPF 70 out of the optical path. Thus, in the character photographing mode, the fall of the resolution due to the LPF 70 is removed, and the high resolution can be obtained.
Patent JP-H0740526-A (JP)
Title: Solder printer
Inventor: UEDA YOICHIRO
IPC: H05K3/12
Filed: 1993-07-27
Abstract: PURPOSE:To provide a solder printer having function inspecting the state of the aperture part of a metal mask in parallel to printing operation. CONSTITUTION:In a solder printer moving a printing head 23 having a squeezee 24 attached to the lower part thereof to print solder on a printed circuit board through a metal mask 22, a color line sensor camera 28 is fixed to the printing head 23. The color line sensor camera 28 takes the image of the aperture part of the metal mask 22 successively along with the movement of the printing head 23. The color extraction only of the solder printed region on the printed circuit board 21 seen through the aperture part is performed by an image confirming device 37 and a judging means 38 detects removal-of-plate inferiority and the shift of the printed circuit board from the metal mask from the area or position thereof before the printing of solder and detects the wetting inferiority of solder after printing.
Patent JP-S6429079-A (JP)
Title: Chrominance signal correction system
Inventor: ISHITOBI YOSHIMITSU
IPC: H04N1/60
Filed: 1987-07-24
Abstract: PURPOSE:To upgrade the accuracy of correction by calculating a correction value by using the correction matrices adjacent to two reference color selected from the hue of an input color signal, weighting the correction value as prescribed, and synthesizing it to finally obtain a correction value. CONSTITUTION:A color hue calculation means 1 calculates the hue of an input color signal, and selects two kinds of reference colors which are the same hue as the input signal or a hue close to the input signal. By using the correction matrices generated for the selected reference colors, a correction value calculation means 2 calculates a correction value for the input color signal. A distance ratio calculation means 3 calculates the ratio of distance in a hue space between the hue of an input color signal calculated by the means 1 and the two kinds of reference colors selected by the means 1. A correction value synthesizing means 4 synthesizes the correction value calculated by the means 2 as weighting it by the distance ratio of the hue space calculated by the means 3, and thus a final correction value is calculated.
Patent JP-H0234086-A (JP)
Title: Image pickup device
Inventor: UOZUMI HIROAKI
IPC: G02B7/00
Filed: 1988-07-25
Abstract: PURPOSE:To simplify and facilitate the loading/ejection of an optical filter by providing a slit to four corners at an opening of a fixed plate. CONSTITUTION:The slit 401 is provided to four corners of an opening of an optical filter fixing plate 4 to fix an optical filter 1 to a front end of an image pickup device main body 6, the spring action by the slits is utilized so as to absorb a mechanical pressure caused at fixing the filter. The optical filter 1 is loaded/ejected simply and easily without damaging an optical filter and without using any cushion member other than the optical filter fixing plate 4.
Patent JP-S6181510-A (JP)
Title: Valve gear for internal-combustion engine
Inventor: AJIKI YOSHIO
IPC: F01L1/24
Filed: 1984-09-04
Abstract: PURPOSE:To perform zero adjustment for two valves, by installing a pair of rocker arms to be connected oil disconnected to or from a pair of suction or exhaust valves, driving them with a single cam, while installing a hydraulic lifter in each tip end of both these rocker arms. CONSTITUTION:A pair of suction valves or exhaust valves V1 and V2 are installed in one cylinder, and they are driven by a single cam C via a pair of rocker arms. These two rocker arms are connected or disconnected by a plunger 64 of a valve stop mechanism 5, and in time of disconnection, one side valve V1 alone is driven. Hydraulic fluid is fed to each tip end of both these rocker arms through a throttle 32, and there is provided with a hydraulic lifter T2 having a reservoir 16 to be interconnected to the outside through a throttle 33. Zero such adjustment takes place with both valves V1 and V2, whereby smooth connecting operation for the valve stop mechanism 5 is carried out. With this constitution, a sudden variation in hydraulic pressure inside the reservoir 16 is in no case entailed there and, what is more, unusual actions are thus prevented from occurring.
Patent JP-2001016073-A (JP)
Title: Band-limiting filter
Inventor: KAJITA KUNIYUKI
IPC: H03H17/02
Filed: 1999-06-30
Abstract: PROBLEM TO BE SOLVED: To provide the band-limiting filter which is decreased in arithmetic quantity and reduced in power consumption and hardware scale, and its band- limiting process method. SOLUTION: A shift number generator 103 sets how many bits need to be shifted by respective bit shifters of respective filter parts 102 so as to actualize desirable amplitude characteristics on the band-limiting filter 101 as a whole, and the starting filter part 102 shifts a data sequence inputted to the band- limiting filter 101 by prescribed data groups through registers, shifts respective shifted data groups by a bit number indicated by the shift number generator 103 and adds them together, and outputs the result to a next filter part 102, and the input data sequence are passed through all the filter parts 102 one after another and are processed.
Patent JP-H1129627-A (JP)
Title: Decomposable polymer and its production
Inventor: MINAZU HIROSHI
IPC: C08L101/16
Filed: 1997-07-10
Abstract: PROBLEM TO BE SOLVED: To obtain the subject polymer having excellent heat resistance, decomposability and toughness by performing a reaction in a reaction system containing a specific hydroxycarboxylic acid and/or lactones, a polyfunctional carboxylic acid compound and/or its acid anhydride, a polyhydric alcohol and a catalyst. SOLUTION: This polymer is obtained by performing a polymerization in a reaction system containing (A) a cyclic dimer of a hydroxycarboxylic acid and/or lactones (preferably L-lactide), (B) a polyfunctional carboxylic acid compound having more than three carboxyl groups and/or its acid anhydride (e.g. 1,2,3,4-cyclopentanetetracarboxylic acid), (C) a polyhydric alcohol having more than two hydroxyl groups (e.g. ethylene glycol) and (D) a metal of I to V group in the periodic table, its oxide or its salt, etc., (e.g. zinc dust) as a catalyst. Preferably, the component B is 0.01-0.5 wt.% based on the polymer and an equivalent ratio of carboxyl group in the component B to hydroxyl group in the component C is (100/90)-(100/110).
Patent JP-H0349136-A (JP)
Title: Image display device
Inventor: KURODA HARUO
IPC: H01J31/12
Filed: 1989-07-18
Abstract: PURPOSE:To secure the relative position relation between a height regulating bar and an insulating wire regulating metal plate and reduce assembling man- hours by integrally forming the height regulating bar and the insulating wire regulating metal plate. CONSTITUTION:A height regulating bar 33 is fitted and fixed by an insulating wire regulating metal plate integrated with a height regulating bar fitting metal 37. The relative position relation between the intersection between an insulating wire 31 and a linear cathode 2 and the height regulating bar 33 is determined by the component size precision of the metal plate 37 independently from the assembling size precision. Assembly precision is improved, the metal plate 37 is fitted to a back electrode 1, the bar 33 is fitted and fixed to the electrode 1, thus assembly man-hours can be reduced.
Patent JP-H058139-A (JP)
Title: Engine piston positioning and fixing device
Inventor: YOSHIDA KOZO
IPC: B23Q3/06
Filed: 1991-06-28
Abstract: PURPOSE:To process and measure a piston profile correctly to a pin hole in a piston, and facilitate installation and removal of the piston. CONSTITUTION:A piston pulldown rod 8 is composed to be pushed by a pushup operation means 15 against a spring 12. A piston is installed at a piston receiving cylinder frame 7 on a reference cylinder frame 3 to penetrate a piston engagement pin 10 covering the pin hole in the piston 20 and a pin hole 8a bored at an upper part of the piston pull--down rod 8. When pushup to the piston pulldown rod 8 by the pushup operation means 15 is released, the piston pulldown rod 8 is resiliently pressed by the spring 12, and the piston 20 is fixed to the piston receiving cylinder frame 7. The piston 20 can thus be positioned correctly to the reference of the pin hole, thereby a piston profile can be processed and measured correctly.
Patent JP-H0637545-A (JP)
Title: Distortion generation circuit
Inventor: ASANO TAKAHIRO
IPC: H03B19/14
Filed: 1992-07-14
Abstract: PURPOSE:To provide a distortion generation circuit which outputs only distortion that is higher harmonies. CONSTITUTION:A signal inputted to an input terminal 1 is divided into two signals, a signal A and a signal B with phase of -90 deg. against the signal A by a first 3dB90 deg. hybrid 2. The signal A passes a first dual gate transistor 3 and a phase shifter 5, and is inputted to the input terminal on one side of a second 3dB90 deg. hybrid 6. The signal B passes a second dual gate transistor 4, and is inputted to the input terminal on the other side of the second 3dB90 deg. hybrid 6. As a result, no signals A, B that is fundamental waves appear on an output terminal 7 since they are offset. Therefore, when signals C, D that is fundamental waves are inputted from the input terminal 1, no signals C, D that is fundamental waves appear on the output terminal 7, and the distortion that is the higher harmonics appears on the output terminal 7 since the electric length of the second 3dB90 deg. hybrid 6 becomes less than lambda/4 (lambda: wavelength of higher harmonies), therefore, only the distortion that is the higher harmonies can be outputted.
Patent JP-H0898680-A (JP)
Title: Production of luciferase
Inventor: KAJIYAMA NAOKI
IPC: C12N9/02
Filed: 1995-07-21
Abstract: PURPOSE: To obtain purified luciferase useful for the quantitative determination of ATP, etc., by purifying luciferase originated from Luciola vitticollis (a kind of firefly) in the presence of ethylene glycol. CONSTITUTION: Crude luciferase liquid or crude luciferase powder originated from Luciola vitticollis is purified by gel filtration, adsorption and elution, electrophoresis, precipitation, affinity chromatography, molecular sieve membrane treatment, etc. At least one of the above purification processes is carried out in the presence of ethylene glycol. The purified luciferase produced by this process catalyzes the oxidation of luciferin, is inert to DP, CTP, UTP and GTP, has an optimum pH of 8.0-9.5, a stable pH range of 6.5-9.0 and an optimum working temperature range of 0-50 deg.C and is completely deactivated at pH <=5.0 or >=11.0 after 4hr or by the heat-treatment at pH7.8 and 50 deg.C for 15min.
Patent JP-S6247899-A (JP)
Title: Eprom device
Inventor: MUTO TADASHI
IPC: G11C16/02
Filed: 1985-08-26
Abstract: PURPOSE:To perform a stable writing action at a high speed by providing a current limiting FET to a memory array in series to a FET which receives a write signal. CONSTITUTION:An array M-ARY comprises nonvolatile memory elements (FETs Q1-Q6) containing control gates and stray gates, word lines W1 and W2 and data lines D1-Dn. A common source line CS is grounded via a depression type FETQ10 which receives a write control signal (the inverse of We). The FETQ10 functions as a variable resistance element to reduce conductance with 'L' of the write control signal (We) in a write mode. Thus the potential of the line CS is set at a high level and therefore the threshold voltage Vth of the memory element is increased by substrate effects. Then the leakage current to a non-selection element is reduced and the writing current produced from the high writing voltage VPP flows to the selected element with high efficiency. Thus a stable writing action is secured at a high speed.
Patent JP-S6162904-A (JP)
Title: Automatic machine device
Inventor: FUJITA SHIGEKI
IPC: G05B19/42
Filed: 1984-09-05
Abstract: PURPOSE:To clamp many kinds of objects of clamping by the same clamping mechanism by programming the timing of clamp opening and closing operation of a clamping mechanism, and supplying this programmable timing to an automatic machine device body as a teaching command. CONSTITUTION:A four-axis horizontal swivel type robot consists of the 1st-the 3rd arms 1-3 and their driving sources 4-6, a support arm 7, a column 8, etc. and is controlled by a controller 10. The clamping mechanism 11 atop the 1st arm is controlled by a clamping mechanism controller 12. This controller 12 is equipped with a program input device 13, control unit 14, driving unit 15 for a motor 16, and detectors 17 and 18 for a speed and a position. The control unit 14 sends a torque command corresponding to work clamping force inputted through said input device 13 to the driving unit 15 to drive the motor 16. Further, when a clamping device 11 is opened, the control unit 14 sends a speed command to the driving unit 15 similarly according to the opening quantity of the clamp to drive the motor 16, opening the clamping device 11.
Patent JP-H1114284-A (JP)
Title: Heat exchanger and its manufacture
Inventor: SAKANO AKIRA
IPC: F28F9/00
Filed: 1997-06-25
Abstract: PROBLEM TO BE SOLVED: To easily, accurately and temporarily fix a header pipe to a bracket by providing a recess on one of an outer periphery of the header pipe and a mounting surface of the bracket, and providing a protrusion to be engaged with the recess on the other. SOLUTION: Recesses 12, 13 are provided on outer peripheral surfaces 10, 11 of a pair of header pipes 2, 3, and protrusions 14, 15 are provided at both ends of the bracket 8 at its mounting surface 9 side. And, the protrusions 14, 15 are formed integrally with the bracket 8. The protrusions 14, 15 corresponding to the recesses 12, 13 are engaged with the recesses 12, 13, the bracket 8 is temporarily fixed to the pipes 2, 3 and brazed. Accordingly, at the time of engaging the protrusions 14, 15 with the recesses 12, 13, the surface 9 of the bracket 8 is elastically deformed, and hence its engaging operation can be simply executed.