baber/WOPTO huggingface dataset:
Patent JP-S60218175-A (JP)
Title: Absolute value circuit
Inventor: ARAI YASUHIRO
IPC: G06G7/25
Filed: 1984-04-13
Abstract: PURPOSE:To set up gain simply with the small number of parts by acting an output stage amplifier as a non-inversion amplifier and an inversion amplifier. CONSTITUTION:When an input Vi is positive, voltage VN applied to a resistor R3 becomes VN=Vi. Since the non-inversion input terminal and inversion input terminal of the amplifier OP2 are set up to the same potential, the output voltage Vo becomes Vo=Vi. When the input is negative, a diode is cut off and the voltage VN applied to the non-inversion input terminal of the amplifier OP2 becomes VN=0 and the amplifier OP2 acts as an inversion amplifier. If a resistor R1 is made equal to a resistor R2, an output Vo becomes Vo=-Vi.
Patent JP-S60216816-A (JP)
Title: Process and apparatus for concentrating soil residue and sludge in night soil treatment
Inventor: TANAKA SHIGEMASA
IPC: B01D33/06
Filed: 1984-04-13
Abstract: PURPOSE:To obtain soil residue having small content of sticking night soil and concentrated sludge reasonably and economically by executing recovery of the soil residue of the night soil treatment and the concn. of the sludge with separate screens. CONSTITUTION:After recovering the soil residue 17 from green night soil 1 with a rotary screen 23, the night soil is treated in the form of filtered night soil 3 by a biological treatment 4 to produce primary treated water 5, which is then separated in a setting concentration tank 6 into the secondary treated water 7 and returned sludge 12. The major portion of the returned sludge 12 is returned to the biological treatment stage 4, and the excess portion is withdrawn as excess activated sludge 13, which is coagulated together with coagulated settled sludge 11 by the coagulant 15 added to a coagulating tank 24. It is then charged as coagulated sludge 25 to a rotary screen 26, separated into separated water 27 and concentrated sludge 18. The separated water 27 is separated from the residue and is led to the biological treatment stage 4 together with the filtered night soil 3. Further, the recovered soil residue 17 and the concentrated sludge 18 are fed to a dehydrator 19 where it is separated into the separated water 20 and dehydrated cake 21, and the separated water 20 is returned to the biological treatment stage 4 and treated therein.
Patent JP-S58190918-A (JP)
Title: Laser scanner
Inventor: TATSUMI RIYUUJI
IPC: B23K26/082
Filed: 1982-04-30
Abstract: PURPOSE:To irradiate a laser beam with an even spot diameter and over a wide range, by adding a laser beam viewfield stop-down mechanism consisting of a aperture and an optical element to a scan optical system of a laser scanner. CONSTITUTION:The laser beam radiated from a laser device 1 enters a beam expander 3 via a reflector 2 to be magnified and reaches a reflector 5 via a reflector 4. The beam passed through these reflectors reaches an objective lens 7 via a reflector 6 which limits the beam diameter with a slit 10 and is magnified by a concave lens 11. In this case, a reduced image of the slit 10 is formed by the lens 11, and an image is formed on the surface 12 of a workpiece by an objective lens 7 which uses the above-mentioned reduced image as a light source. In this case, the distance is constant between the slit 10 and the lens 7 if X and Y tables 8 and 9 move. Therefore both a slit image 10' and the lens 7 have no change.
Patent JP-H09247371-A (JP)
Title: Image reader
Inventor: WATANABE MASARU
IPC: H04N1/04
Filed: 1996-03-04
Abstract: PROBLEM TO BE SOLVED: To obtain image data of high precision even if a component or transmission body deteriorate in precision with time. SOLUTION: A read start reference point 37 and a read end reference point 38 are arranged on the reverse surface of a 2nd document abutting member 36 and when the image reader is powered on, a prescan is made to extract an image of the read start reference point 37 and an image of the read end reference point 38; and the distance (number of lines) between those read start reference point 37 and read end reference point 38 is measured and on the basis of the measurement result, the number of read lines when an image of a document 5 is read out is adjusted.
Patent JP-S63237569-A (JP)
Title: Manufacture of mis type semiconductor device
Inventor: KOYAMA KENICHI
IPC: H01L27/12
Filed: 1987-03-26
Abstract: PURPOSE:To increase Vt of a transistor corresponding to the sidewall of an element region larger than that of a transistor at the top of the element region by forming a semiconductor film which contains in high concentration the same impurity as that of a substrate only at the sidewall of the region, and increasing the thickness of the oxide film of the sidewall of the region. CONSTITUTION:A polysilicon film 6 on a surface is etched to retain the film 6 diffused in high concentration with boron only on the sidewall of a silicon film 3, and the films 3, 6 are partly thermally oxidized. An Si3N4 film 4 prevents the top of an element region from being oxidized at this time. As a result, a thick oxide film 2' is formed only on the sidewall of the region. Thus, the film 6 in which boron is diffused in high concentration and the film 2' are formed on the sidewall of the region of an MOS semiconductor device of SOI structure. Thus, Vt of the transistor of second channel region corresponding to the sidewall of the region is increased larger than that of a transistor of a first channel region to remove the influence of the transistor of the sidewall.
Patent JP-S60216564-A (JP)
Title: Manufacture of semiconductor ic
Inventor: SAGA MISAO
IPC: H01L21/302
Filed: 1984-04-12
Abstract: PURPOSE:To enable easy formation of a narrow groove for interelement isolation and the reduction in damage of the crystal by a method wherein a groove is formed in a semiconductor substrate by irradiation with light beams, and an isolation layer is formed by filling the groove with an insulator. CONSTITUTION:The groove 12 of required shape and depth is formed by repeatedly scanning the Si substrate 1 with laser beams. Next, an Si oxide film 15 is formed on the upper surface of the substrate 1 and the inner surface of the groove 12. Then, a polycrystalline Si layer 18 is deposited on the substrate 1. The surface is smoothened by removing the layer 18 of the region except inside the groove 12 through etching. In the manufacture as above, a narrow isolation layer can be formed by reducing damage in the crystal of the substrate 1 and without the need of mask patterns.
Patent JP-S52156784-A (JP)
Title: Liquid crystal composition
Inventor: NAKANO FUMIO
IPC: C09K19/48
Filed: 1976-06-23
Abstract: PURPOSE: To provide a nematic liquid crystal compsn. which is stable in a supercooled state over a long time, e.g., at -40°C for ≥ 500 hr. by mixing one or more out of specified azoxy cpds. with one or more out of Schiff base cpds. and heating the mixt. while stirring. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S58193379-A (JP)
Title: Electrolytic cell for alkali chloride
Inventor: SHIBATA HIDENORI
IPC: C25B1/46
Filed: 1982-05-04
Abstract: PURPOSE:To inhibit the deformation of an ion-exchange membrane, in performing electrolysis while forming the difference in pressure between electrode chambers, by providing a member for inhibiting the deformation of the ion-exchange membrane inside the chambers. CONSTITUTION:When operation is performed in a vertical electrolytic cell for an alkali chloride having an ion-exchange membrane as a diaphragm while forming the difference in pressure between cathodic and anodic chambers, a member for inhibiting the deformation of the ion-exchange membrane is provided inside the electrode chambers in a manner such that the ion-exchange membrane is not pushed from the side of the high-pressure electrode chamber to the low-pressure electrode chamber. Side member for inhibiting the deformation is pref. a heat and corrosion-resistant material, e.g. polypropylene, polyethylene or polytetrafluoroethylene.
Patent JP-S59198238-A (JP)
Title: Paper feeder
Inventor: KOBAYASHI SEIICHI
IPC: B65H27/00
Filed: 1983-04-26
Abstract: PURPOSE:To prevent the occurrence of rumples in time of paper feeding, by forming one side of paper feed rollers into a concavo-concave form tapering diametrically by degrees with a staged taper from both end parts to the central part of a roller. CONSTITUTION:A roller 3 on one side is constant in its outer diameter extending over its axial direction, while a roller 4 on the other side is of a rigid body in structure comprising a concavo-concave form tapering diametrically by degrees with a staged taper from both end parts to the central part of this roller. As for the left half of a sheet of paper P, it tends to be pulled to the left by a difference in a contact area between these rollers 3 and 4 as well as a difference in peripheral velocity by the roller 4. Likewise, the right half is also pulled to the right whereby the sheet of paper P to be conveyed by these rollers 3 and 4 comes to one that has no rumples at all in consequence.
Patent JP-H08279823-A (JP)
Title: Packet base telecommunication network
Inventor: KAI EN IN
IPC: H04L12/56
Filed: 1996-03-28
Abstract: PROBLEM TO BE SOLVED: To reduce the construction cost and communication cost of the packet base telecommunication network. SOLUTION: The order of transmission of packets to the network is stored as well as a virtual network, but packet base telecommunication architecture which requires neither call setting nor disconnection by nodes is disclosed differently from the virtual network. Further, packet switches (1 to 15) having this architecture are simpler than those used for datagram or the virtual network. In one embodiment, a step for determining the topology of a network of packet switches interconnected by communication links, a step for making at least two names correspond to at least one packet switch (10), and a step for inputting data so that an element network having topology of a sink tree (oriented nonlooped graph) having packet switches with names at the root of tree at the packet switches and communication links for respective names respective router tables in the packet switches are included.
Patent JP-H02251644-A (JP)
Title: Structure of circular knitting machine
Inventor: OKADA TOSHIHIKO
IPC: D04B15/14
Filed: 1989-03-25
Abstract: PURPOSE:To facilitate exchange of kettles having different sizes or gages by providing the upper kettle with a polygonal cut hole, forming the outer edges of a support plate for the upper kettle into a shape engageable with the cut hole and enabling the lower kettle to divide into the upper and lower parts. CONSTITUTION:In a circular knitting machine having the upper kettle 5 and the lower kettle 14, the outer edges (4A) of a support plate 4 for fixing the upper disklike kettle 5 are formed into a polygonal shape and the upper kettle 5 is provided with a cut hole (5B) in a form similar to that of the polygon. The outer edges (4A) of the support plate 4 are somewhat smaller than the cut hole (5B) of the upper kettle 5 to provide dimensions capable of engaging both. Furthermore, the lower kettle 14 is provided with a structure for dividing into the upper part (14B) and the lower part (14A) and integrally connecting both.
Patent JP-S60215436-A (JP)
Title: Automatic clutch control device
Inventor: MOROTO SHIYUUZOU
IPC: B60W10/10
Filed: 1984-04-11
Abstract: PURPOSE:To prevent a life of a starting device from being deteriorated as well as prevent a high speed stage from being started due to mistake by a driver by controlling a clutch operation means, and operating an alarming device to inform a driver of occurrence of an accident and thereby shifting down the clutch. CONSTITUTION:An automatic clutch control device 1 comprises a negative pressure servo 2, a servo pressure control means 3, a negative pressure sensor 6, and a computer 8. The computer 8 is inputted with, besides an input signal from the negative pressure sensor 6, a signal indicative of an what position a shift lever 7 having seven setting positions is situated. The computer 8 checks a car speed signal 74, a throttle opening signal 75, and a shift lever set position signal 71 in operation of the clutch from a release state to an engagement state or in the engagement state, and instructs a means 3 to prevent the clutch from being engaged when the car speed is less than a certain value, the throttle opening more than a certain valve, and a signal 71 is of 3-5th. And the computer switches on the alarming device 76 to instruct the driver to shift down the clutch.
Patent JP-S52156427-A (JP)
Title: Combustion method and its device for upper stoking system soaking pit
Inventor: WADA YOSHIROU
IPC: F27B3/20
Filed: 1976-06-22
Abstract: PURPOSE:To allow the rapid soaking of steel ingot bottom, by performing imperfect primary combustion at the upper part of a furnace and by carrying out the secondary combustion of combustion gas, which is generated by the imperfect combustion, at the lower part of the furnace.
Patent JP-S547850-A (JP)
Title: Commutation circuit for reverse couducting thyristor
Inventor: ISHIDOU MICHIHARU
IPC: H02M1/06
Filed: 1977-06-20
Abstract: PURPOSE: To establish a new circuit enabling to restrict di/dt(com) and increasing the commutation characteristics, with a simple means only connecting a series circuit of a bypass diode Dand a saturated reactor RE in anti-parallel with main SOR. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S61233441-A (JP)
Title: Optical head device
Inventor: KUWAYAMA TETSUO
IPC: G11B7/135
Filed: 1985-04-09
Abstract: PURPOSE:To eliminate the effects of the wavelength variance of a light source by increasing the size of a photodetecting surface in the direction where it is diffracted by a diffraction grating in comparison with the size of said photodetecting surface in the direction orthogonal the first mentioned direction. CONSTITUTION:The traveling direction of the diffracted light 11 is changed slightly by the wavelength variance of a light source 1. The change of direction due to said wave motion variance is coincident with the direction due to said wave motion variance is coincident with the direction diffracted by a diffraction grating. Therefore 11a'-11c' have vertical fluctuations to the distribution of light quantity of 11a-11c. Here the photodetecting surfaces 13a-13d of a photo detector 13 have relatively large sizes in the direction where the luminous flux is shifted by said wavelength fluctuation. At the same time, the dividing line of each photodetecting surface is set in parallel to said direction. As a result, the output of each photodetecting part is not substantially affected despite the wavelength variance of the light source 1. This attains the correct auto- focusing and auto-tracking actions.
Patent JP-S63237728-A (JP)
Inventor: OTAKE YUTAKA
IPC: A01K89/015
Filed: 1987-03-27
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-H05224601-A (JP)
Title: Path search device
Inventor: MATSUMOTO YOSHIYUKI
IPC: G05B13/02
Filed: 1992-02-12
Abstract: PURPOSE:To preferentially search for an optimum path on which a driver's favorite is reflected by rewriting a total evaluation function so that the weight of a parameter which is made small in cost value increases. CONSTITUTION:The previously set total evaluation function including parameters of plural costs of the distances, mean travel times, road widths, right/left turning frequencies, etc., of respective paths connecting two points set on a road map according to road map data is used under the control of a signal processor 3 to search for the path which minimizes the numeral. A composite search for paths decreasing the numeral of the total evaluation function is made in preferential order and one of them is optionally selected by input operation from an operation device 8. Then the total evaluation function is rewritten by learning each time the paths are selected so that the weight of the parameter decreasing the cost value of the selected path, and the optimum path on which the driver's favorite is reflected is preferentially and gradually searched for.
Patent JP-H08268814-A (JP)
Title: Herbicide composition for paddy field
Inventor: EDA SADAFUMI
IPC: C07D493/14
Filed: 1995-03-30
Abstract: PURPOSE: To obtain a herbicide containing decreased amount of active compo nent, applicable at an arbitrary stage from the pre-emergence stage of weeds before transplantation to the growing stage of the weeds and capable of control ling the weeds over a long period by using a new furobenzopyran derivative in combination with a sulfonylurea derivative. CONSTITUTION: This herbicide composition for paddy field contains at least one kind of furobenzopyran derivative of formula I [R1 is an alkyl; R2 is an alkyl, an alkoxy, etc.; R3 is an alkyl, an alkoxy, benzyloxy, etc.; R4 is H or an alkyl; R5 is cyano, nitro, phenyl, etc.; (m) is 0-4; (n) is 0-2; (p) is 1-3] in combination with at least one kind of compound selected from sulfonylurea derivatives such as methyl 2-[3-(4,6-dimethoxypyrimidin-2-yl)ureidosulfonylmethyl]benzoate. The new compound of formula I can be produced by the intramolecular cyclization reaction of a tetrahydrofuran derivative of formula II. The composition is preferably applied by flooded soil treatment at a rate of 0.01-5kg/ha.
Patent JP-H04285967-A (JP)
Title: Developer composition for flexographic printing plate
Inventor: OTA KATSUYUKI
IPC: G03F7/32
Filed: 1991-03-14
Abstract: PURPOSE:To obtain a developer compsn. enabling the formation of a relief having superior reproducibility, not deteriorating work environment and ensuring satisfactory safety and hygiene. CONSTITUTION:This developer compsn. for a flexographic printing plate contains an org. solvent having <=10wt.% solubility to water at 20 deg.C, a surfactant and water and is used at the time of producing a flexographic printing plate with a photosensitive resin compsn. consisting of thermoplastic elastomer, a photopolymerizable unsatd. monomer and a photopolymn. initiator.
Patent JP-S61235367-A (JP)
Title: Feeding unit for various kinds of threads with rewinder
Inventor: TAJI SEIJI
IPC: B65H67/04
Filed: 1985-04-08
Abstract: PURPOSE:To enable to rewind plural kinds of threads while feeding automatically at a time by a single automatic rewinder, by classifying the automatic rewinder into groups of disposing of threads, and furnishing a spooled thread feeding conveyer for other sorts of threads parallel to the existing feeding conveyer. CONSTITUTION:As well as an automatic rewinder 1 is classified into groups A and B to dispose of different kinds of threads, a spooled thread feeding belt conveyer 10 for other different threads is furnished parallel and nearly at the same level to the spooled thread feeding belt conveyer 3. And as well as feeding a spooled thread automatically to a cup magazine 2, the excessive spooled threads not fed yet are introduced to the rear sides 3a and 10a of the feeding belt conveyers by returning devices 5 and 5a respectively, and returned to the feeding belt conveyers 3 and 10 by lifting devices 6 and 11. In such a way, by using only one rewinder, rewinding can be carried out while different kinds of threads are fed automatically, and the disposing can be also automatic.
Patent JP-S62228570-A (JP)
Inventor: WATANABE HIDESHI
IPC: E04H6/12
Filed: 1986-03-31
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-H11275395-A (JP)
Title: Video camera and computer readable recording medium
Inventor: ONO YASUMASA
IPC: H04N5/225
Filed: 1998-03-23
Abstract: PROBLEM TO BE SOLVED: To easily view character display on a monitor screen when facing photographing is executed after turning-over by vertically inverting the liquid crystal monitor of a video camera. SOLUTION: The monitor screen becomes the one indicated in a figure (a) in a normal mode where a liquid crystal monitor is at the side of a view finder and the mark 107 of an REC pose is displayed as shown in the figure. When facing photographing is executed by vertically inverting and turning over the monitor so as to permit it to face the same direction as that of a lens, a font like the mark 107a indicated by the figure (b) is prepared and displayed so that easily recognized display is attained like the figure (c) even when a left and right scanning direction is changed in accordance with vertical inversion. Besides, visible recognition is attained even at the time of separation from the camera by executing display being larger than that of the normal mode.
Patent JP-H04285475-A (JP)
Title: Power source
Inventor: MORI HITOSHI
IPC: H03H7/075
Filed: 1991-03-12
Abstract: PURPOSE:To reduce in size and weight by using an LC composite element in a resonance switching power source. CONSTITUTION:An LC composite element in which dielectric elements 21, 22 and conductor foils 23, 24 are alternately superposed, electrode lead conductors 25, 26 are provided from starting and finishing ends of a winding to be wound in a cylindrical shape and a magnetic element 27 is passed inside, is used as a resonance element of a resonance inverter. The size and the weight are reduced, and the efficiency is enhanced as compared with the case of using discrete elements.
Patent JP-H04284893-A (JP)
Title: Septic tank for sewage
Inventor: SATO HACHIRO
IPC: C02F3/00
Filed: 1991-03-12
Abstract: PURPOSE:To heighten the sludge returning efficiency by supplying air to an air lift pipe in combination with interrupting gas dispersion owing to the difference of water levels when an automatic switching valve is opened, and to hinder the water flea growing conditions and make denitrification conditions by lowering the dissolved oxygen amount in a contact aeration tank by the oxygen deficient treatment liquid flowing from an anaerobic sludge tank. CONSTITUTION:Anaerobic sludge tanks 1A, 1B and a contact aeration tank 1C are provided and an air lift pipe for returning sludge from the tank 1C to the tanks 1A, 1B is installed. An air supplying pipe 3A to the pipe 2 is installed by branching an air supplying pipe 3 for gas dispersion to the tank 1C and air outlet 3B of the pipe 2 is set to be at higher position than a gas dispersing pipe 4, and at the same time, an automatic switching valve 5 is installed in the branched pipe 3A to the pipe 2. A controlling apparatus 6 to control the valve to be opened for a set period by a timer 6A and closed besides the period is installed in the valve 5. As a result, separated sludge can be returned efficiently, and at the same time, water flea propagation which causes separated sludge generation in the contact aeration tank can be suppressed.
Patent JP-H10271832-A (JP)
Title: Power supply unit
Inventor: MURAKAMI YOSHINOBU
IPC: H02M7/06
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To suppress input harmonic distortion with a simple circuit configuration, and current passing through a switching element. SOLUTION: A filer capacitor C4 is connected between DC output terminals of a full wave rectifier consisting of diodes D1 to D4 through a diode 5, and a serial circuit of switching elements Q1 , Q2 is connected across it. High-frequency input current from an AC power source Vs is distributed into a load circuit including a resonance circuit constituted of a capacitor C2 and an inductor L2 and the serial circuit to a charging circuit including an inductor L1 so that switching current may be reduced, and is controlled so that input current harmonic distortion may be improved.