baber/WOPTO huggingface dataset:
Patent JP-H08213939-A (JP)
Title: Echo canceler
Inventor: HACHITSUKA YOTARO
IPC: H04B3/23
Filed: 1995-02-03
Abstract: PURPOSE: To realize high speed convergence and stable operation by introducing a pseudo roll-off filter to the device so as to reduce an impulse width of an adaptive filter of a pseudo echo generator. CONSTITUTION: A single pseudo roll-off filter 23 is inserted between a pseudo echo generator 10 and a subtractor 14. The impulse width of an adaptive filter in the pseudo echo generator 10 is made narrow by inserting the pseudo roll-off filter 23 whose characteristic is close to a frequency roll-off characteristic of a transmission band of an echo pulse, that is, the echo canceler with high quality realizing excellent convergence characteristic and stability is realized, in which the number of taps requiring adaptive control is reduced. A low pass filter whose pass band is flat and having a typical broad band frequency roll-off characteristic for an echo pulse almost depending on, e.g. a PCM coder/decoder or a high pass filter whose pass band is flat and having a typical low frequency roll-off characteristic for an echo pulse is adopted for the pseudo roll-off filter 23.
Patent JP-S60182779-A (JP)
Title: Photocoupler
Inventor: TAKAGI NOBUYOSHI
IPC: H01L31/173
Filed: 1984-02-29
Abstract: PURPOSE:To enable miniaturization and mass production by a method wherein a light emitting element, photo detecting element, and photo guiding element formed by selective lamination of amorphous Si and its compound are integrally formed on the same substrate by connection. CONSTITUTION:The section where a clear electrode 3, an a(amorphous)-SiC layer, a-Si layer 6, a-SiC layer 7, electrode layer 8 have been laminated on the substrate 1 is the light emitting element 14. The part of lamination of a clear electrode 4, p<+> a-Si layer 9, I-a-Si layer 10, n<+> a-Si layer 11, and electrode layer 12 constitutes the photo detecting element, and the part of lamination of SiOx layer 13 on an SiO2 layer 2 constitutes the photo guiding element 16. The elements 14, 15, and 16 thus integrally formed to the substrate 1 constitute the photocoupler 17. Therefore, the photocoupler 17 formed by integral lamination of respective constituent elements on the substrate 1 allows the light generated in the element 14 to be effectively confined, and to input to the element 15 by progation through the layer 2. Such a construction enables the manufacture of an IC-processed photocoupler without using an expensive manufacturing process.
Patent JP-H07223868-A (JP)
Title: Beta-sialon-based sintered material for sliding material and production thereof
Inventor: NODA YOSHIRO
IPC: C10N40/02
Filed: 1994-02-10
Abstract: PURPOSE:To obtain a beta-sialon-based sintered material for a sliding material excellent in sliding properties such as abrasion resistance and anti-seizing property and capable of holding these properties for a long period at a high level and provide production method thereof. CONSTITUTION:This beta-sialon-based sintered material is composed of basic particles consisting of beta-sialon particles of a main component and an inter- particle phase consisting of at least one of a glass phase and a crystalline phase and the standard deviation of a degree of solid solution of the sialon particles expressed by the formula Z=6XAl/(XSi+XAl) is g 0.03. In the formula, XSi expresses an atomic % of Si in terms of 100 atomic % of the total of Si and Al composing the beta-sialon particle and XAl expresses that of Al. The sintering is carried out in the condition that the temperature is elevated at a speed of >=10 deg.C/min (up to 1500-1800 deg.C), kept for <=2hr at the level and lowered at a speed of >=10 deg.C/min and the oboe sintered material is obtained.
Patent JP-S60182324-A (JP)
Title: Air-fuel ratio control device for engine
Inventor: SHIMOMURA SETSUHIRO
IPC: F02D41/18
Filed: 1984-02-27
Abstract: PURPOSE:To control air-fuel ratio to a good condition, by obtaining a quantity of fuel in accordance with the speed of an engine and its throttle valve opening or the pressure of an intake pipe in the range of operation of the engine where a quantity of intake air can not be measured due to pulsation. CONSTITUTION:A quantity of fuel is normally obtained in accordance with the signal of an intake air amount sensor 1 outputting a frequency in proportion to a quantity of air. The quantity of intake air can not be accurately detected in the operative range of an engine where pulsation of the intake air and its blow back are increased. In the range such as described, the quantity of fuel is obtained in accordance with a signal from a speed sensor 2 and a load sensor 3 which detects a throttle valve opening or the pressure of an intake pipe. In this way, air-fuel ratio can be controlled to a good condition even in the range with a large level of pulsation.
Patent JP-H08232813-A (JP)
Title: Injector
Inventor: TAKAGI TAKAAKI
IPC: B23P15/16
Filed: 1995-02-27
Abstract: PURPOSE: To enable precise fuel injection regardless of a simple structure. CONSTITUTION: In an injector which is provided with a plate shaped orifice 133 on the ejection part of fuel and in which is drilled an injection hole for injecting fuel on the orifice 133, a curve shaped part 154 is formed on the inlet circumferential edge part of the injection hole 155, and a cylindrical projection part 161 having the same inner diameter as the inner diameter of the injection hole 155 is formed on the outlet of the injection hole 155.
Patent JP-H01211372-A (JP)
Title: Digital magnetic picture recording and reproducing device
Inventor: SHIMOTASHIRO MASAFUMI
IPC: G11B20/10
Filed: 1988-02-19
Abstract: PURPOSE:To make solid writing possible without increasing an azimuth angle and improve frequency utilizing efficiency and, at the same time, to make recording and reproduction without receiving any influence from reproduction distortion by recording multilevel digital codes on a magnetic recording medium after performing multilevel orthogonal amplitude modulation on the codes and decoding the codes by means of a Viterbi decoder. CONSTITUTION:A multilevel converter 2 converts n-bit digital codes into 2<n/z>-value digital I signals and 2<n/z>-value digital Q signals and outputs the signals to a multilevel QAM 3. The multilevel QAM 3 outputs the signals to an adder 4 after performing multilevel orthogonal amplitude modulation on the signals. The output of the adder 4 is bias-recorded on a magnetic recording medium 8 through an REC amplifier 6 and magnetic head 7. On the reproducing side, a multilevel QAM demodulator 10 demodulates multilevel orthogonal amplitude modulated signals from a head amplifier 9 into multilevel digital I and Q signals and outputs the signals to a Viterbi decoder 11. The decoder 11 performs decoding by regarding the frequency deterio ration caused by magnetic recording and reproduction as convolutional codes. Therefore, solid writing becomes possible even though the azimuth angle is not set so large and the frequency utilizing efficiency is improved. Moreover, recording and reproduction become possible almost free from influences of reproduction distortion.
Patent JP-2000242180-A (JP)
Title: Clasping mechanism
Inventor: MOFUJI KUNIHIKO
IPC: F16B45/00
Filed: 1999-02-17
Abstract: PROBLEM TO BE SOLVED: To provide a clasping mechanism which facilitates fastening of a metallic wire-shaped member to an object to be hung and makes the object to be hung hardly removable from the wire-shaped member. SOLUTION: The mechanism for clasping a metallic wire-shaped member 12 to an object to be hung 10 which is hung via this wire-shaped member 12 includes the ends 20 of the wire-shaped member having front end portions bent like hooks, a pair of apertures 24 and 26 disposed at the object to be hung and frames 22 for regulating the edges therebetween. The one aperture 24 of the frame permits the insertion of the end of the wire-shaped member and the other aperture 26 permits the penetration of the front end portion of the end after the insertion. The edges are contactable with the wire-shaped member between the front end portions after the penetration and the base portions communicating therewith.
Patent JP-S5910665-A (JP)
Inventor: MATSUGASHITA NOBUYUKI
IPC: E04G11/34
Filed: 1983-03-10
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-S52121727-A (JP)
Title: Frequency changer
Inventor: KIUCHI MITSUSACHI
IPC: H02M5/27
Filed: 1976-04-05
Abstract: PURPOSE: To be able to change high freuqency electric power to make turn off time of thyrister short, by applying reverse bias voltage between gate cathades when thyrister current reaches to zero. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S59165528-A (JP)
Title: Reducing device of impulsive noise
Inventor: ISHIGAKI YUKINOBU
IPC: H04B1/10
Filed: 1983-03-09
Abstract: PURPOSE:To reduce the noises without causing unnatural auditory feeling by giving a linear interpolating operation to a desired signal through a signal compensating circuit while the impulsive noises are generated and actuating a de- emphasizing circuit while no impulsive noise is generated. CONSTITUTION:A capacitor C and a resistance R for a de-emphasizing circuit are connected to each other via a switch circuit SWa while no impulsive noise is generated in an input signal. Then the signal passing through between a terminal 5a and a terminal 5b is de-emphasized. When the impulsive noise is generated in the input signal, the circuit SWa is turned off by a control signal S2a. At the same time, a switch circuit SWb is turned on by a control signal S2b. Then an interpolating operation is carried out to a drop-out period of signals by the functions of the series of circuits including a differentiating circuit 6, a sampling/holding circuit 7, a signal compensating circuit 5A, etc.
Patent JP-H07248480-A (JP)
Title: Cooler of liquid crystal projector
Inventor: KOBAYASHI KENZO
IPC: G02F1/13
Filed: 1994-03-09
Abstract: PURPOSE:To provide a cooler of a liquid crystal projector which is small and inexpensive and has a decreased difference in cooling effect between the upper and lower parts of a liquid crystal panel. CONSTITUTION:The cooling liquid housing container 7 of the cooler of the liquid crystal projector formed by arranging the cooling liquid housing container 7 between the liquid crystal panel and a polarizing plate and packing a cooling liquid therein has a sheet-shaped cooling part space 3 of a shape to cover one surface of the liquid crystal panel 1 and cooling liquid circulating part spaces 4 at both right and left ends thereof. The cooling liquid circulating part spaces 4 and the cooling part space 3, exclusive of the upper and lower parts are partitioned. At least the cooling liquid housing container 7 is transparent in the part forming the cooling part space 3 and is in tight contact with the liquid crystal panel 1. Heat radiating fins 5 are mounted in the cooling liquid circulating part space 4. The circulation of the cooling liquid is smooth and a high cooling effect is maintained over a long period of time if the cooler is constituted in such a manner.
Patent JP-S62222238-A (JP)
Title: Automatic original feeding device
Inventor: TOYAMA TETSUYUKI
IPC: G03B27/62
Filed: 1987-02-20
Abstract: PURPOSE:To remove useless processing operation by providing a copying machine or the like with a sensor for detecting an image state before the arrival of an original at an image processing position, and at the detection of a blank sheet, inhibiting the image processing of the sheet. CONSTITUTION:Originals are set up on a tray 7 and carried to a carrier 23 one by one by a feeding roller 25 and a separating roller 27. The original is passed through a regist roller 3 in an automatic original carrying device 5, pressed against a carrying belt 55 driven by a roller 51 and carried to a platen 3. In this case, a line sensor 41 is arranged between rollers 35, 37 and the roller 51 to detect whether the original is a blank sheet or not. In case of image processing on the platen 3, an original having images on both the sides is image- processed at one side at first, and then the original is turned upside-down to process the image on the other side. In the original having a blank surface on one side, only the side having an image is processed without executing the image processing of white paper.
Patent JP-H02220381-A (JP)
Title: Manufacture of contactor
Inventor: HAYASHI MICHI
IPC: H01R43/00
Filed: 1989-02-17
Abstract: PURPOSE:To simplify a heat process and improve the productivity by applying a heat process to a press moulded matter for restoring its spring property after an oil cleaning process in a continuous plating process. CONSTITUTION:A press moulded product M of a contact obtained by a press moulding process 1 is plated in a continuous plating process 2. In the continuous plating process 2, a pre-processing part 23, a plating process 24 and a post- processing part 25 are set between a supply reel 21 to a take-up reel 22. After a process of drying 39 after a process of hot water washing 38 in the post- processing part 24, a heating part 40 is provided for applying a heat process for annealing for restoring the spring property of the press moulded product M. The heat process can thus be simplified and the productivity can be improved.
Patent JP-H05184994-A (JP)
Title: Liquid spray apparatus
Inventor: INOUE KIYOSHI
IPC: B05B17/06
Filed: 1992-01-09
Abstract: PURPOSE:To improve spraying efficiency and to increase spraying region of finely sprayed particles over a wide range. CONSTITUTION:A liq. is fed to a rotating disc 1 rotated by means of a motor 3 from a nozzle 5 to perform spraying and spouting 7 while the fed liq. is dispersed from the peripheral edge of the disc 1. A oscillating device 4 providing an ultrasonic oscillation vertically to the rotating direction is provided to prepare a traveling wave with a certain relation based on a superposition of a rotational centrifugal force and a vertical ultrasonic oscillation, which sprays the liq.
Patent JP-S617532-A (JP)
Title: Rapid manual closing mechanism of interrupter
Inventor: RUI BOWARO
IPC: H01H71/52
Filed: 1985-03-01
Abstract: 1. Mechanism for rapid manual closing of a current breaking device, notably a switch or circuit breaker, having a handle (10) connected by a kinematic chain to a contact arm (32), characterized in that elastic part (56) forming an abutment which can be overrun, is located at a predetermined point on the trajectory of movement of one (54) of the elements of the switchgear closing mechanism in such a way as to impede said movement and to constitue a hangup point (alpha2 ) requiring an increased force on the handle to overrun said point 'alpha2 ) corresponding to a position of the contact arm (32) close to the position where the contacts (38, 40) come into contact, said part (56) being inactive after said overrun, to bring about rapid closing by the action of said increased force and when the handle (10) is moved in the switchgear opening direction.
Patent JP-S56138016-A (JP)
Title: Sunvisor
Inventor: MATSUZAKI YASUO
IPC: B60J3/06
Filed: 1980-03-28
Abstract: PURPOSE: To obtain the sunvisor for the car with a wide field of view and shading the direct rays of rising and declining sun, by using the transparent polarizing plate consisting of the polarizing sheet sandwiched between a pair of transparent rigid sheet.  
     CONSTITUTION: The polarizing sheet 4 is made up of the polyvinyl alcoholic film iodized and the triacetal films adhered to both sides of it, and the polarizing plate 3 is made up of the above-mentioned polarized sheet 4 with the transparent plates 5 made of acylic or poly-carbonate ester adhered to both sides of its in the state of sandwich. The sunvisor is made up of the above-mentioned polarized plate 3 with the fitting shaft and the metal fittings attached to it. By this constitution, the field of view of the sunvisor is not decreased, as well as the direct rays is prevented from coming into the driver's eyes, when the sun is low in the morning and in the evening. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11237336-A (JP)
Title: Organic substance detection device for enabling index calibration and organic substance monitoring system using it
Inventor: TAKANO YUSUKE
IPC: G01N21/41
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To provide an organic substance detection device that is configured so that it can adjust the zero point of a measuring instrument and calibrate indication at a monitoring center. SOLUTION: The device is provided with a detection element 30 for causing an attribute change when it touches an organic substance, first means 38, 48, and 56 for allowing a medium to touch the detection element 30, a second means for causing at least one medium out of a medium that does not contain an organic matter and a medium that contains an organic substance with a known concentration to touch the detection element 30, and an optical means 26 for outputting light to be applied to the detection element 30 and at the same time receiving light being reflected by the detection element. The device is connected to a monitoring center with a supply part for supplying either medium out of the medium that does not contain the organic substance and the medium that contains an organic substance with a known concentration for a specific period.
Patent JP-H02243958-A (JP)
Title: Method for packing moving plug column for liquid chromatography
Inventor: SAKAMOTO SUMIAKI
IPC: B01D15/08
Filed: 1990-02-20
Abstract: PURPOSE:To allow a rapid high-density packing operation by the combination use of the characteristics in the structure of the moving plug type column used in a mechanical pressurization packing method and a liquid passage pressurization packing method. CONSTITUTION:A loading material-dispersed slurry 20 adjusted in concn. is introduced into a set reservoir 21 for packing and a column body 22 and is allowed to settle by gravity until a prescribed coarse density state is attained. The supernatant liquid is thereafter removed and the reservoir 21 is removed. The moving plug 24 is inserted into the body 22 with respect to a loading material packed layer 26 of the coarse density and an upper flange 25 is fixed. Liquid is then passed through the body 22 and is pressurized under a prescribed liquid passage pressure from above by a constant- flow rate pump to gradually form the high-density loading material packed layer 26. While the liquid passage is continued, the moving plug 24 is moved downward to fix the packed layer 26. The movable plug 24 is descended while executing the liquid passage to fix the packed layer 26. The excellent sepn. performance is obtd. by such packing with the liquid passage pressurization under the low pressure; in addition, the strength of the column to the pressure can be lowered and the load of the liquid passage equipment can be lessened.
Patent JP-H06252820-A (JP)
Title: Power supply circuit and radio communications equipment using thereof
Inventor: ORIMO NORIO
IPC: H04B1/38
Filed: 1993-02-26
Abstract: PURPOSE:To provide the radio communications equipment of the time division multiplexer system in which a power supply of an amplifier element of an RF power amplifier uses a battery at a comparatively low voltage. CONSTITUTION:The radio communications equipment incorporates an RF power amplifier 12 amplifying a transmission signal operated at a high voltage to a predetermined power and sending the signal and a signal processing circuit operated at a low voltage and a battery 20 as a drive power supply of the circuits employs a lithium ion battery whose nominal output voltage is 3.6V and having a high energy density. A 1st switch 22 closes its contact in the case of transmission. A DC/DC converter 23 boosts an output voltage of the battery 20. A capacitor 24 charges/discharges the power supplied to the RF power amplifier 12. A 2nd switch 26 closes/interrupts the power of the RF power amplifier 12 under the control of a CPU 30. Through such a constitution the lithium ion battery at a low output voltage is used for a power supply and power is supplied to the RF power amplifier 12 at the same efficiency as in the case using a regulator and a battery at a high output voltage.
Patent JP-H04258455-A (JP)
Title: Structure for execution of work for tiled wall surface
Inventor: OKADA YOSHIAKI
IPC: E04F13/21
Filed: 1991-02-08
Abstract: PURPOSE:To lay tiles easily with increased setting strength over a backing material in a method in which the tiles are laid, being locked with locking parts that are provided over the backing material so that they can protrude beyond the surface of the backing material. CONSTITUTION:A dovetail slot 1a is formed on the rear side of a tile 1 in a form that is wide at the lower part while being narrow at the upper part. The tile 1 is fitted from above on to a locking part 2a provided over a backing material 2 and is fixed to the backing material by inserting the locking part 2a into the dovetail slot 1a.
Patent JP-S59167175-A (JP)
Title: Picture data processing device
Inventor: SUZUKI TAKEO
IPC: H04N1/00
Filed: 1983-03-11
Abstract: PURPOSE:To attain an output of restored information at high speed through the use of an inexpensive facsimile by receiving code data and a format designation index from a host device, forming respectively them as dot pattern data and transferring picture data obtained by synthesizing both the data to the facsimile. CONSTITUTION:Restored data transferred from a computer center is written in the EBCDIK code and in transferring simultaneously the restored data of plural lines, the restored data at each line is transferred by being delimited by a delimiter. When the restored data for one line's share transferred from the center is received, a terminal controller 9 divides the data into the format information comprising a format number 14 and a line number 15 and a restored data part 16 and extracts designated format data from a format file 10 by the format number 14 and the line number 15. Then, the restored data part 16 is expanded into character pattern data in terms of dots by referring a character pattern file 11. The format data and character pattern data are edited for facsimile output at a synthesis file 12 and outputted to a facsimile 3.
Patent JP-H1147489-A (JP)
Title: Filter for washing machine
Inventor: SHIN JUNG SOO
IPC: D06F39/10
Filed: 1998-02-20
Abstract: PROBLEM TO BE SOLVED: To provide a filter for a washing tank, which can sufficiently trap foreign matters mingled in washing water even though a small amount of laundry is washed with a small quantity of washing water. SOLUTION: A filter for a washing machine is composed of a filter casing 300 attached to the lower part of the inside of a spin basket in the washing machine defining therein a predetermined space between itself and the spin basket, a front panel 210 attached on one side thereof with a mesh member 220 for trapping fringe mingled in washing water, a rear panel 230 openably attached to the front panel 210 by means of a hinge pin 232, and attached on one side thereof with a mesh member 240 for trapping fringes mingled in washing water, for defining a predetermined space between itself and the front panel 210, a check valve 250 for cutting off washing water flowing between the front and rear panels 210, 230, and pocket filters 200 to be fitted in the filter casing 300.