baber/WOPTO huggingface dataset:
Patent JP-2000341061-A (JP)
Title: Switching noise reduction circuit
Inventor: KUROSAKI MASAMI
IPC: H03G1/04
Filed: 1999-05-26
Abstract: PROBLEM TO BE SOLVED: To obtain a switching noise reduction circuit that can properly suppress a switching noise with a simple configuration. SOLUTION: The switching noise reduction circuit is provided with a shift switch 1 consisting of 1st resistor groups comprising resistors 11, 12, 13 and of a 1st switch group comprising switches 14, 15, 16, a ladder switch 2 consisting of a 2nd resistor group comprising resistors 21, 22, 23, 24 and of a 2nd switch group comprising switches 25, 26, 27, 28, a signal amplification operational amplifier circuit 4 that receives a signal adjusted by the shift switch 1 and the ladder switch 2, and a capacitive element 3 that is provided to eliminate a high frequency component from the signal to be given to the signal amplification operational amplifier circuit 4.
Patent JP-S55101720-A (JP)
Title: Internal combustion engine having subsidiary chamber
Inventor: HISADA YARIICHI
IPC: F02B17/00
Filed: 1979-11-11
Abstract: PURPOSE: To cause laminar combustion of mixture effectively by concentrating rich mixture locally in subsidiary chambers, through employment of an arrangement in which at least one of a plurality of subsidiary chambers is constituted by forming a recess in the upper surface of piston and an ignition plug is disposed in a first subsidiary chamber.  
     CONSTITUTION: A main chamber 5 is constituted by a space defined by cylinder 1, inner surface of cylinder head 2 and upper surface of piston 4 having an inclined spiral surface 6. A first subsidiary chamber 11 is constituted by forming a recess in the upper surface of piston 4 at a portion thereof near intake valve 9, and a second subsidiary chamber 12 in a hemispherical form is formed in the upper surface of piston 4 in the manner that it is communicated to the first subsidiary chamber 11. An ignition plug 13 is fixed to cylinder head 2 such that its top is located in the first subsidiary chamber 11. In intake pipe 7, a fuel injection valve 16 is fixed at a position spaced from intake valve 9, so that fuel can be supplied directly to the first and the second subsidiary chambers 11, 12 or to an adjacent portion during suction  stroke of piston 4. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5771248-A (JP)
Title: Device for electromagnetic coupling with motor
Inventor: OKADA TAKAAKI
IPC: H02K7/112
Filed: 1980-10-17
Abstract: PURPOSE:To obtain a stabilized speed controlling performance having a small inertial moment and an excellent responsiveness by a method wherein an output section is formed using a thin conductive plate, and an eddy current coupling, whereon a magnetic member to be used to close a magnetic circuit and a driving member are formed in a body, is adopted. CONSTITUTION:The driving member 10 is securely provided at the end section of a rotating shaft 5 protruding on the left side in axial direction from the second bracket 9 which supports other bearing 8 on the rotating shaft 5, and this driving member constitutes a part of the magnetic circuit. Also, by activating the first magnetic coil 12, a magnetic pole piece 12 is provided on the driving member 10 in such a manner that counter poles are constituted alternately in the direction of circumference. Besides, a magnetic member 14, which closes the magnetic circuit opposing to a magnetic pole piece 13 through a void, is provided on the driving member 10 through the intermediary of a nonmagnetic member 15. Through these procedures, a stabilized speed control with a small inertial moment and an excellent responsiveness can be performed.
Patent JP-S5368509-A (JP)
Title: Signal process system
Inventor: ONOSE KOUICHI
IPC: G06T9/00
Filed: 1976-11-30
Abstract: PURPOSE: To minimize the disturbance of the picture image due to the error of the transmission system by recording the information of before and after the error in a facsimile device. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S5849085-A (JP)
Title: Controlling circuit for current type 3-phase inverter
Inventor: TERAJIMA MASAYUKI
IPC: H02M7/521
Filed: 1981-09-18
Abstract: PURPOSE:To improve the adaptability of a current type 3-phase inverter by deciding the phase difference alphaN to the varying time point at the load current after the variation and selecting the thyristor to be conducted, thereby reducing pulsating torque. CONSTITUTION:The phase difference alphaT from the start of the state of 1' of a load currentIL at the present time to the end of the state of 1' in the load currentIL after the variation is calculated by an alphaT arithmetic unit 16, while the phase difference theta from the start of the state of 1' of the loadIL at the present point to the varying time point c is compared by (alphaT-theta) arithmetic unit 18, thereby calculating (alphaT-theta). An arithmetic unit 20 selects the state of the load currentIL after the variation at the varying time point is selected by the magnituide relation to a certain period based on the output of the unit 18. Then, the phase difference alphaN from the start of the state to the varying time point is calculated, thereby selecting the thyristor to be conducted.
Patent JP-H0818640-A (JP)
Title: Case structure for electronic equipment
Inventor: SAKAGUCHI KENICHI
IPC: H04B7/26
Filed: 1994-06-28
Abstract: PURPOSE:To provide a case structure with improved waterproof property and impact resistance for which a number of components and assembly man-hours for holding internal packaging components are reduced and an internal packaging capacity is large in a portable communication equipment and a portable information processor. CONSTITUTION:An upper inner side case body 3b and a lower inner side case body 4b using soft resin are integrally formed on the inner side of respective upper outer side case body 3a and lower outer side case body 4a using hard resin, an opening part is provided with a difference in level and the upper inner side case body 3b is provided with a notched part 3c. At the time of combining the upper outer side case body 3a and the lower outer side case body 4a, by pushing with the lower inner side case body 4b, the inner packaging component 5 is held. At the time, since the lower inner side case body 4b is large, it is deformed and presses the inner packaging component 5.
Patent JP-H073874-A (JP)
Title: Catch basin
Inventor: ISAKA YOSHITAKA
IPC: E03F5/10
Filed: 1993-06-17
Abstract: PURPOSE:To distribute widely all loads exerting on an outer cover to a subsoil basin and prevent the settlement of a catch basin by installing a rib which projects outside from the outer peripheral wall surface of a riser pipe. CONSTITUTION:In a riser pipe 5 whose lower end is inserted to an upper side- connection part 4 of a catch basin main body 3 to be connected to an underground drain pipeline 2 and, which extends near no an underground area, a plurality of ring-shaped ribs are installed, which extend outside from the outer peripheral wall surface in order to prevent the settlement of the catch basin. The ribs 9 are made by dividing a ring-shaped raw material into two sections equally and brought into contact with the outer peripheral surface of the riser pipe 5 and fastened with bolts, thereby mounting the ribs 9 to the riser pipe 5. The load which exerts on an outer cover 6 is widely distributed to a buried subsoil basin by the settlement prevention ribs 9 projecting outside from the outer peripheral wall surface of the riser pipe 5 and received, which makes it possible to absorb the load exerted from above ground through this peripheral wall area by means of a large friction force.
Patent JP-S5848796-A (JP)
Title: Centrifugal impeller
Inventor: KANEKO HIROMI
IPC: F04D29/22
Filed: 1981-09-18
Abstract: PURPOSE:To prevent generation of cavitation by a method wherein a communicating hole is provided in the shroud of the impeller and a part of flowing water increased in the pressure thereof by the impeller is introduced into the inlet of the impeller through said communicating hole to increase the static pressure of the inlet port of the impeller. CONSTITUTION:A communicating hole 13 is provided in a front shroud 1a and a gap 8 between a fixed wall 6 and the front shroud 1a is communicated directly with the inlet port of the impeller. Therefore, the static pressure of the inlet port of the impeller may be increased by introducing a part of the flowing water, increased in its pressure by the impeller, from the gap 8 into the inlet port of the impeller even when the suction pressure of the pump is reduced. According to this method, the cavitation will never be generated, and therefore, corrosion due to the cavitation may be prevented.
Patent JP-S5770008-A (JP)
Title: Exchanger for disk of skew rolling mill
Inventor: AKITA SHINJI
IPC: B21B19/04
Filed: 1980-10-21
Abstract: PURPOSE:To shorten the time requirement of the exchanging work, by moving a couple of disk shoes parallelly outward, by alternately turning a couple of holding devices so as to face to the disk shoe, and by replacing the old disk shoe with a new one. CONSTITUTION:The chocks 23, 24 are parellelly moved outward as far as a distance l by clinders 31, 32 and screws 33, 34. Holding devices 41, 42 on one side are theta1, theta2 turned to positions opposite the disk shoes 21b, 22b. A holder 45 is lifted up by a cylinder 44 of the holding device 42, the disk shoe 22b is detached by a detaching machine 47, the holder 45 is then brought down, and then, the holding device 42 is again theta2 turned so as to turn to the initial position. A holding device on  another side provided with a new disk shoe 22c is theta4 turned so as to make the new disk shoe 22c face to the main shaft 26; then, the holder is lifted up, the new disk shoe 22c is set to the main shaft 26 by the detaching machine, and the holder is brought down. Then the chock 24 is again parallelly moved inward as far as the distance l, and the new disk shoe 22c is mounted on the normal position.
Patent JP-H0613913-A (JP)
Title: Data string rearrangement circuit
Inventor: OKI MITSUHARU
IPC: H03M7/30
Filed: 1991-05-23
Abstract: PURPOSE:To reduce the circuit scale and to quicken the operating speed by connecting storage means in cascade, using a selection means to select an output from a connecting point among plural storage means connected in cascade and outputting only one output. CONSTITUTION:The circuit is provided with a storage means (FF) receiving each input data string to latch the data and shifting the data stored in response to a prescribed signal and with a selection means 24 receiving plural input signals and selectively outputting only one signal among the plural input signals. Then plural FFs 211-21m are provided and connected in cascade and the selection means 24 selectively outputs the output from connecting points (including input output points) of the plural FFs 211-21m connected in cascade as plural input signals to rearrange the sequence of the input data strings. Thus, the plural FFs 211-21m implement the processing shifting only the data stored in terms of prescribed signals.
Patent JP-S628454-A (JP)
Title: Fuel cell
Inventor: NAKAMURA HARUYA
IPC: H01M8/04
Filed: 1985-07-05
Abstract: PURPOSE:To improve reliability and realizes long operation life by giving electric insulation property to a spacer and providing a projected portion projected from the side of electrode to the exit side of gas in the gas flow path. CONSTITUTION:A spacer 6 having the electric insulation property is formed with the protruded portions 6a, 6b protruded from the side surface of oxidation agent pole 1 and fuel pole 2 provided respectively to the gas exit side of the oxidation agent pole 1 and fuel pole 2. Thereby, the electrolyte leaking from the exit of gas flow paths 1a, 2a with an exhaust gas, for example, the phosphoric acid and water is rejected by the spacer 6 having the protruded portions 6a, 6b and accordingly it is prevented to adhere to the side surface of laminated cell bridging over the electrodes 1, 2. As a result, corrosion at the side surface of laminated cell and short-circuit of electrodes 1, 2 can be prevented, reliability of fuel cell can be improved and operation life thereof can also be expanded.
Patent JP-S5848034-A (JP)
Title: Automatic electronic flash device
Inventor: OKINO TADASHI
IPC: G03B15/05
Filed: 1981-09-17
Abstract: PURPOSE:To execute continuous flash photographing over a wide range, by switching an aperture value controlling characteristic based on distance information in accordance with switching to a continuous photographing mode by continuous motor-driven winding, and shortening a recycle time. CONSTITUTION:When a switch 46 is switched so that a contact 46a is connected to a contact 46c, a regular photographing mode is converted to a continuous photographing mode by continuous motor-driven winding, and through a distance information generating potentiometer, an output of a distance information buffer amplifier 37 whose reference voltage is varied in accordance with a distance becomes a value which is difference from a case of the regular photographing mode. Simultaneously, an input current to an aperture controlling circuit of a joint A through an operational amplifier 45 which sets the output of the amplifier 37 to an input, also becomes a value different from a case of the regular photographing mode. A recycle time is shortened by switching an aperture value characteristic based on distance information in accordance with switching to this photographing mode, and satisfactory continuous flash photographing can be executed over a wide range from a short distance to a long distance.
Patent JP-S5478976-A (JP)
Title: Semiconductor device
Inventor: OOKATA MITSUO
IPC: H01L23/04
Filed: 1977-12-06
Abstract: PURPOSE: To prevent the destruction of cover ring and ring insulator, by locating the insulation ring of L shaped cross section so that one cover ring and ting insulator can be shielded at the external the semiconductor element.  
     CONSTITUTION: The end surface of the inner circumference of the insulation ring 4 consisting of the ceramic of high melting point such as ring shaped aluminum of L shaped cross section is in contact with the external circumference of the first electrode 21 and the inner circumference of the cylinder part is in contact with the external circumference of the support metal plate 12 of the semiconductor element 1. The contact clearance should be made small to the utmost. With this construction, the surrounding of the Si plate 11 of the element 1 is completely enclosed with the insulation ring 4, and the cover ring 22 and the ring insulator 22 are shielded. Accordingly, even if great short circuit current flows to the element, no molten chips are scattered to the external. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H10188661-A (JP)
Title: Smoke-collecting filter device for luminaire and luminaire fitted therewith
Inventor: WADA TORANOSUKE
IPC: B01D53/38
Filed: 1997-06-04
Abstract: PROBLEM TO BE SOLVED: To provide a simple smoke-collecting filter device which quickly sucks ambient cigarette smoke in to keep the smoke from scattering without requiring a large-scale device. SOLUTION: An air hole 17 provided at the top of the shade 23 of a luminaire is covered with a filter 15, and smoke (air) collecting inside a smoke- collecting base 21 is fed to the filter 15 by a fan 14 mounted inside the smoke- collecting base 21, to clean the air. The filter 15 has a dust removing part 15b formed by folding a nonwoven fabric into bellows to remove dusts and a deodorizing part 15c having an activated carbon sealed therein to absorb odors. An embodiment in which the air that has passed through the filter also passes through the fan in also applicable.
Patent JP-H0813370-A (JP)
Title: Production of cellulosic fiber and absorbing structure
Inventor: ISHIKAWA HISAO
IPC: D04H1/413
Filed: 1994-06-28
Abstract: PURPOSE:To provide a method for producing a cellulosic fibers suitable for an absorbing member such as diaper, sanitary napkin and pad for incontinent person and to obtain an absorbing structure using the cellulosic fibers. CONSTITUTION:Mercerized cellulosic fibers in a water wet state are provided with shear force by mechanical stirring treatment, dried at 105170 deg.C in a nonrestricted state and fluffed. The prepared cellulosic fibers are used to constitute absorbing structure.
Patent JP-S628165-A (JP)
Title: Two-component developer
Inventor: KOIZUMI FUMIO
IPC: G03G9/087
Filed: 1985-07-05
Abstract: PURPOSE:To form a visible image having good durability to resins and excellent shelf life by incorporating a crosslinkable polyester resin and epoxy resin into toner powder and forming the toner so as to have the specific frictional electrostatic charge quantity and the change value of the frictional charge quantity with lapse of time in the frictional charge with a carrier. CONSTITUTION:The toner powder contains the crosslinkable polyester resin and epoxy resin and the toner satisfies the relations expressed by inequalies (I)-(III) when the frictional charge quantity of the toner by the carrier is desig nated as A, the frictional charge quantity of the toner powder by the carrier as B and the change value of the frictional charge quantity of the toner by the carrier with lapse of time as C. An external additive has <=100mmu primary particle size. The external additive to constitute the toner is exemplified by a fluidity improving agent for improving the fluidity of the toner, a polishing agent for adequately polishing the surface of a photosensitive body and others.
Patent JP-S5370861-A (JP)
Title: Chain and band and their production
Inventor: YOKOSUGA KOUICHI
IPC: A44C5/10
Filed: 1976-12-07
Abstract: PURPOSE: To obviate the disengagement of chains owing to the elongation of rings and eliminate the need for labor and skill by using materials comprising disposing brazing material to the core part of metal pipes and making chains and bands through fabrication of these. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H10337920-A (JP)
Title: Printer
Inventor: HOSOMI HIROAKI
IPC: B41J11/70
Filed: 1997-06-04
Abstract: PROBLEM TO BE SOLVED: To obtain a printer in which full cut/partial cut can be switched without increasing the cost. SOLUTION: An auto-cutter unit 4 is movable to the left and right while being guided by a guide shaft 2. Under the state shown on the drawing, a movable cutter 5 intersects a recording sheet over the entire transverse region and the recording sheet is full cut. When the auto-cutter unit 4 is shifted to the right, the movable cutter 5 does not reach a part of the recording sheet on the left side and a part of the recording sheet is not cut.
Patent JP-S5271151-A (JP)
Title: Liquid crystal display element
Inventor: AKIYAMA MASAYUKI
IPC: G09F9/00
Filed: 1975-12-10
Abstract: PURPOSE: To reduce the number of components and to enable automatic assembling, by unifying the panel case and the keyboard thru the use of plastic transparent plate for the display element board. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H08162713-A (JP)
Title: Method for manufacture of surface light-emitting ridge-type vcsel with self-aligned contact and sidewall reflector
Inventor: CHIYANNROON SHIEE
IPC: H01S5/042
Filed: 1994-06-07
Abstract: PURPOSE: To make the arrangement of a light emitting window and an electric contact more accurate, and simplify the manufacture, and make it easy to execute, and raise the efficiency, by performing the alignment between the electric contact and the light emitting region in a self matching manner. CONSTITUTION: A contact layer is provided on the topside of the first mirror stack 14. The first metallic contact layer 20 is overlaid on the topside of the contact layer, and there ohm contact is made. Layers 20, 25, and 30 are used as etching masks in the subsequent processing. When the etching masks are arranged, the contact layer and the second mirror stack 14 are etched to the specified thickness. Injection material 32 is injected into the residual part of the second mirror stack 14. When a ridge or a mesa is made and the injection material is arranged, a part of a layer 25 capable of etching is removed, and the first section of the metallic contact layer 20 is exposed. When the etching mask is removed, the exposed part of the metallic contact layer 20 is removed, and the light emitting window of VCSEL can be exposed or opened.
Patent JP-H01313450-A (JP)
Title: Ester derivative and production thereof
Inventor: AZUMAI TAKAYUKI
IPC: C07C43/23
Filed: 1988-06-14
Abstract: NEW MATERIAL:The ester derivative of formula I (X is -COO-, -OCO-, -CH2Oor -OCH2-; A is 5-20C alkyl or alkoxy; R' is lower alkyl; l and m are 1 or 2). EXAMPLE:4-Pentyloxybenzoic acid 4'-(1-acetoxyethyl)-4-biphenylyl ester. USE:Useful as an intermediate for organic electronic materials and liquid crystal compounds. PREPARATION:The objective compound of formula I is produced by reacting an alcohol of formula II with >=1 equivalent, preferably >=4 equivalent (based on the compound of formula II) of a lower alkyl carboxylate in a solvent (e.g., tetrahydrofuran) in the presence of a catalyst (e.g., dimetnylaminopyridiene). The starting compound of formula II can be synthesized by reducing a ketone of formula III with a reducing agent.
Patent JP-S627467-A (JP)
Title: Coating method and apparatus
Inventor: KOMAI TOSHIYA
IPC: B05D1/28
Filed: 1985-07-04
Abstract: PURPOSE:To contrive to prevent not only the scattering of a solution but also the thick coating of an edge part, in a method for forming a liquid sump immediately before the contact part of a bar and a web prior to coating, by making the effective rotary width of the bar narrower than the width of the web and sucking an excessive solution along the end surface of the bar. CONSTITUTION:In a steady state, a coating solution 3 is applied to a web 2 through the liquid sump 8 formed in the contact part of a rotating bar 1 and the web 2. At this time, the effective rotary width of the bar 1 is made narrower than the width of the web 2 not only to prevent the scattering of the solution from the bar 1 by centrifugal force but also to suck the excessive solution from a suction port 11 along the end surface 10 of the bar 1 and the thick coating of the edge part of the coated layer is prevented. For example, the end surface 10 of the bar 1 formed into a shape having almost concentric circular cavities and the outer shape 12 of a suction port 11 is formed into a stationary shape holding engagement relation to make the liquid crosslinking of the excessive solution extremely small.
Patent JP-H07336872-A (JP)
Title: Pulse generator
Inventor: KADOKAWA TAKANORI
IPC: H02H3/08
Filed: 1994-06-06
Abstract: PURPOSE:To provide a pulse generator having high current detecting accuracy and high power efficiency. CONSTITUTION:A pulse generator is constituted so that pulses are output in response to driving pulses from a charging means 41 charged by constant currents through a constant current diode, etc., 3 from a power supply 1, current supply from the power supply to the charging means is interrupted by a first switch 7 and the supply of driving pulses by a second switch 8 is interrupted, and a current detecting means 2 as a photo-coupler with the primary side, through which currents fed from the power supply 1 to the charging means 41 flow, and the secondary side, which is insulated electrically from the primary side and through which currents proportional to currents flowing through the primary side flow, is provided. When the duty of currents flowing through the secondary side of the current detecting means 2 reaches a predetermined value or more, at least one of the first switch or the second switch is interrupted and operated.