baber/WOPTO huggingface dataset:
Patent JP-H04272446-A (JP)
Title: Pressure accumulation type fuel injection device of diesel engine
Inventor: OSHIMA KAZUHIKO
IPC: F02B3/06
Filed: 1991-02-27
Abstract: PURPOSE:To maintain good exhaust gas characteristic even at a transient likely occurring at sudden change of the operating conditions, and prevent increase of smokes at accelerating and also NOx increase and noise generation at deceleration. CONSTITUTION:In a fuel injection control device of common rail type, the actual common rail pressure PC is compared with the target common rail pressure PFIN (S6), and if PC<PFIN-alpha, a correction is executed so as to reduce the target fuel injection amount QFIN (S7). As a result, the fuel with a lower pressure than the target value will never injected in any large quantity, which should prevent generation of smokes. If PC>PFIN+beta, the target fuel injection timing is delayed to suppress violent combustion, and noise generation and NOx increase are prevented.
Patent JP-S59159687-A (JP)
Title: Controlling method and device of pwm inverter
Inventor: NAGASE HIROSHI
IPC: H02P27/08
Filed: 1983-02-28
Abstract: PURPOSE:To reduce the noise irrespective of a load state by regulating the gain of a current control system of a PWM inverter proportional to the speed of an AC motor and reducing the ripple of a sinusoidal voltage command signal at the low speed time. CONSTITUTION:A deviation beteen a speed detection signal and a speed command signal of an AC motor 2 is applied to a current instructing circuit 13 to obtain a sinusoidal current command signal, compared with a current detection signal and applied to a multiplier 19. On the other hand, a signal proportional to the speed detection signal is generated from a gain setter 18, inputted to the multiplier 19, the output is compared with a triangular signal T of an oscillator 16 to control a PWM inverter 1, thereby driving a motor 2. Accordingly, the gain of a current control system is automatically regulated in proportion to the rotating speed by the setter 18 to reduce the ripple component contained in a sinusoidal voltage command signal at the low speed operation time, thereby reducing the magnetic sound generated from the motor 2.
Patent JP-S54124930-A (JP)
Title: Photo sensor system
Inventor: KIYAMA YOSHITO
IPC: G06T1/00
Filed: 1978-03-22
Abstract: PURPOSE: To stabilize the operation of sensor system by varying the quantity of light at the luminous part of the photo sensor system, by detecting the optical characteristics variation attending on the variation, and by making an automatic adjustment of the quantity of luminescence so that this detected photo-detection-part output signal level will be equal to a specific value obtained by correcting the characteristics variation of the sensor system.  
     CONSTITUTION: This system is provided with light emission diode 3 which can vary the quantity of light and photo transistor 9 which receives light from diode 3; the quantity of light emitted from this diode 3 is varied by changing current I by controlling transistors Tr5 to Tr7 by applying the output of switching logic part 2 to diode 3 via buffer amplifier 8. Then, when logic output transistor Tr9 reaches a certain value, control signal 4 is applied to all Tr5 to Tr7 over an inspection over the relation between the control state of current I of diode 3 and logic output 11 by logic part 2, thereby correcting the variation in characteristics of the sensor system. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H01209048-A (JP)
Title: X-ray diagnostic device
Inventor: KAKIMURA MASAHITO
IPC: A61B6/04
Filed: 1988-02-16
Abstract: PURPOSE:To obtain an soft start effect and to prevent the oscillation of a bed by intermittently operating a motor for a fixed time at the time of a start-up when the bed is at prescribed rising/falling angle and rising/falling direction. CONSTITUTION:An I/O unit 1 inputs a rising/falling action switching signal and a rising/falling angle detecting signal and outputs a driving signal to a motor driving circuit 2. The motor driving circuit 2 drives a rising/falling motor 3 and rise-fall-drives the bed. The I/O unit 1 has a CPU 1a and a ROM 1b in which a pulse string generating sequence program is written beforehand, and when the bed is at the prescribed rising and falling angle and rising/falling direction, the rising/falling motor 3 is intermittently operated for the fixed time at the time of the start-up.
Patent JP-H02215038-A (JP)
Title: Device for analyzing trace element using microwave plasma
Inventor: OKAMOTO YUKIO
IPC: H01J49/12
Filed: 1989-02-15
Abstract: PURPOSE:To enable the efficient movement of dissociation   excitation ionization of a liquid sample as well as a gas sample by forming a micro wave plasma torch with a coaxial waveguide haerical coil and a double-tube-type discharge lamp and a cooling system for cooling the discharge lamp from the axial direction. CONSTITUTION:A device is formed in a coaxial waveguide structure which consists of an inside conductor and an outside conductor, and the inside conductor is excited to the circularly polarized wave by a herical coil 30, and the plasma is formed in a discharge lamp 70 with that wave. A double-tube is used as the discharge lamp 70, and a sample 90 and the plasma gas 80 are guided into the discharge lamp 70 under the separated condition. Further, the discharge lamp 70 is cooled by the blow from the axial direction. Consequently, the doughnut plasma 100 of the plasma gas 80 guided into the discharge lamp 70 is efficiently formed and a liquid sample 90 from a nebulizer is guided to the central part of it through a sample guiding tube 71. Thereby, the movement of dissociation   excitation   ionization with the high efficiency can be performed.
Patent JP-S62192438-A (JP)
Title: Base for optical information recording medium
Inventor: SATO FUMIO
IPC: G11B7/2533
Filed: 1986-02-18
Abstract: PURPOSE:To obtain the titled base excellent in heat resistance, mold release, mechanical strength, optical properties and transferability, by combining a copolymer based on methyl methacrylate and an N-substituted maleimide with a specified mold release. CONSTITUTION:A copolymer (A) is obtained by copolymerizing a first principal component comprising 95-50wt% methyl methacrylate and 0-20wt% aromatic vinyl compound [e.g., (alpha-methyl)styrene] with a second principal component comprising at least one member selected from among N-cyclohexylmaleimide, N-t-butylmaleimide, N-acrylmaleimide, etc. 100pts.wt component A is mixed with 0.05-2.0pts.wt. mold release comprising at least one compound (B) selected from among a fatty acid monoalcohol ester of the formula (wherein R1-2 are each a 5-20 C alkyl), stearyl alcohol, stearic acid, cetanol, glycerol stearate and an oligomer containing a perfluoroalkyl group and an oleophilic group to obtain the titled base of a heat distortion temperature >=105 deg.C.
Patent JP-H10229667-A (JP)
Title: Brushless motor
Inventor: NAKAJIMA TAKESHI
IPC: H02K5/24
Filed: 1997-02-18
Abstract: PROBLEM TO BE SOLVED: To prevent intrusion of foreign matter through a silencer hole by employing an elastic material in the housing surrounding a motor and a membrane being stretched over a hole in an end bracket. SOLUTION: The thin outer rotor type brushless motor comprises a housing 1, an end bracket 2, a stator core 3, and a stator coil 4 on the stator side and a rotor case 5, a permanent magnet 6, and a shaft 7 on the rotor side. The housing 1 is provided with a concentric silencer groove or hole for varying the natural frequency. A rotor is disposed in the housing and in order to prevent intrusion of a foreign matter, the groove or the hole must be choked with thermoplastic elastomer having hardness close to that of rubber. Hardness of the elastomer is set in the range of Shore hardness (D) 45-55. According to the structure, intrusion of dust, and the like, can be prevented while eliminating vibration and keeping silence.
Patent JP-H06246121-A (JP)
Title: Method for detecting damage of filter cloth for bag filter dust collector
Inventor: TANIYOSHI SHUICHI
IPC: B01D46/42
Filed: 1993-02-23
Abstract: PURPOSE:To detect the damage of filter cloths by the stoppage of current or the lowering of the current value by embedding conductive wires in cylindrical filter cloths from the upper end to the lower end in the longitudinal direction of the cylindrical filter cloths and feeding constant DC current to the conducting wires through a closed loop circuit from a constant-current power source. CONSTITUTION:Each cylindrical filter cloth 2 is interwoven with carbon fiber 1 as a conductive wire from the upper end to the lower end in the longitudinal direction of the filter cloth 2. Leads 3 are connected to the upper end and the lower end of the carbon fiber 1. Then the leads 3 of the cylindrical filter cloths 2 are alternately connected to each other in series above and below the filter cloths 2 with both ends outside a No.1 bag chamber to form a closed loop through a switching device 5 and a current detector 6. When any one of the cylindrical filter cloths 2 forming the closed loop is damaged together with the carbon fiber 1 and physically cut, the failure is detected by the current detector 6.
Patent JP-H03238499-A (JP)
Title: Scrolling control method
Inventor: YAMAMOTO RYOJI
IPC: G06F3/048
Filed: 1990-02-16
Abstract: PURPOSE:To make a high-speed display, to facilitate the processing of scrolling control, and to improve the processing speed by indicating a display start position to a bit map memory from an input means and displaying data of the memory on the screen of a display means. CONSTITUTION:The bit map memory 34 consists of a memory which has two areas corresponding to one line of display characters of a display means 38 and successive optional (n)-character areas (n: optional). The display start position P and an (N+n)th position are detected on the bit map memory to perform scrolling operation. The scrolling can easily and continuously be stopped and restarted only by specifying a position and all characters in one line are developed in a bit map firstly, so the high-speed display can be made. Consequently, the processing of the scrolling control is simplified and the speed is improved.
Patent JP-S53118356-A (JP)
Title: Darlington circuit containing clamping diode
Inventor: KAMIBAYASHI KAZUTOSHI
IPC: H03K19/088
Filed: 1977-03-25
Abstract: PURPOSE: To prevent the reduction of the switching speed of a Darlington circuit when it is used to the buffer circuit part of a logic circuit, by connecting a diode between the base and collector of the transistor installed at the rear step of the Darlington circuit. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S63201437-A (JP)
Title: Air conditioner
Inventor: TSUJII MASATOSHI
IPC: F24F1/00
Filed: 1987-02-17
Abstract: PURPOSE:To provide quiet and safe blast, not to spoil a view in a room, by laying an ion blower unit into a housing space provided in the inside wall of a room. CONSTITUTION:A housing space 2 for a blower unit 3 is provided in the inside wall 1 of a room, and the blower unit 3 is laid into the housing space 2. The blower unit 3 consists of an ion blower part 4, a high voltage generator part 5, an operating part 6, and a decorative grille 7. The operation of a blower unit is quiet because of an ion blast. Because both the ion blower part 4 on which high voltage is impressed and the high voltage generator part 5 are laid into the inside wall of a room 1, there occurs no projection into the room. Accordingly the space in the room can be utilized efficiently as well as safely, and a view in the room is not spoilt as well.
Patent JP-H11220500-A (JP)
Title: Mobile host, mobile host support node, multicast group participation control method for mobile host and recording medium
Inventor: OKANOUE KAZUHIRO
IPC: H04L12/66
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To prevent the packet transfer of unwanted multicast group by transmitting a group report message composed of only the multicast group to be managed by a direct participation multicast group managing means when a group inquiry message is received. SOLUTION: When the group inquiry message is received from a router, the group report message composed of only the multicast group to be managed by the direct participation multicast group managing means is broadcasted and a group report message related to an indirect participation multicast group is not broadcasted. A direct participation group managing mans 520 supplies the multicast address of a multicast group, in which a present mobile host is participated by direct participation, to an IGMP message processing means 510. The IGMP message processing means 510 transmits an IGMP membership report message concerning the multicast group to be participated by direct participation.
Patent JP-H10234133-A (JP)
Title: Power load reduction system
Inventor: SERIZAWA TOMOO
IPC: H02J3/00
Filed: 1997-02-18
Abstract: PROBLEM TO BE SOLVED: To control power load reduction appropriately and effectively by setting a demand supervisory controller for power management with a plurality of target demand values and performing power management by switching the target demand value through a switching means. SOLUTION: A first target value 11 is employed at normal seasons in an operation. When peak power must be reduced in summer season, the data is previously registered in a timer 24. At a specific data set in the timer 24, a target value switching means 23 is operated by a signal from the timer 24 to make a switching automatically to a second target value 12. The second target value 12 and the switching data being registered in the timer 24 are recommended by a power company. The second target value 12 is set lower than the first target value 11, in order to suppress power consumption, and since the system is operated at a lower demand power, i.e., a target value, power consumption is reduced.
Patent JP-H02213134-A (JP)
Title: Etchant and etching method
Inventor: IDOTA TAKESHI
IPC: H01L21/306
Filed: 1989-02-14
Abstract: PURPOSE:To make it possible to form an etching face, which forms an angle of 45 deg. with the (100) face and is vertical to the (01-1) face, on an InP crystal substrate by using, for etchant, the mixed liquid of hydrochloric acid, hydrogen peroxide, and acetic acid, wherein the values of respective volume percentages of the hydrochloric acid, the hydrogen peroxide, and the acetic acid meet the specified formulas. CONSTITUTION:The solution, wherein hydrochloric acid, hydrogen peroxide, and acetic acid are so mixed as to meet the formulas that (x-a)/9=(y+ a-40)/13=(60-z)/24 at the time of 3<=z<=93 and 3<=z<=60, and (x-a)/3=(y+ a-400)4=(60-z)/7 at the time of 60<=z<=93 (but here x shows the volume percentage % of hydrochloric acid, y that of hydrogen peroxide, and z that of acetic acid), is used as etchant. But, a's among the said formulas shall be 15<=a<=20. Moreover, an InGaAsP layer is formed on the (100) InP crystal substrate, and on the (100) face of the InGaAsP layer, an etching mask, where a pattern including the line in the [01-1] direction is patterned, is formed, and using the said etchant the InGaAsP layer and the InP crystal substrate are etched.
Patent JP-S55126937-A (JP)
Title: Coating process of inside conductive film in picture tube
Inventor: YAMAZAKI ISAMU
IPC: B05D7/22
Filed: 1979-03-23
Abstract: PURPOSE: To simplify the coating work of a conductor, save the waste of the conductor, and enable uniform coating of the conductor by coating the conductor using centrifugal force inside the funnel of a picture tube.  
     CONSTITUTION: When the liquid conductor 20 drops from the dropping device 14 on the revolving stand 17 which revolves at high speed by the motor 19, it becomes sprayable by the centrifugal force of the revolving stand 17 and is sprayed and coated on the inside of the funnel 11 of a picture tube. By moving the body of revolution 17 at fixed speed horizontally and vertically, the conductor 20 can uniformly and economically be coated on the whole inside of the funnel of the picture tube. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H06230345-A (JP)
Title: Liquid crystal display device
Inventor: MIYAWAKI MAMORU
IPC: G02F1/1333
Filed: 1993-02-01
Abstract: PURPOSE:To provide the liquid crystal display device which is free from the deterioration in characteristics, etc., in spite of an environmental change and has excellent reliability by making the volume of a liquid crystal material equal to or larger than the volume of a flowable material. CONSTITUTION:A potting material 101 is disposed on a liquid crystal driving element layer 103. A transparent glass 102 is placed on this potting material 101. The transparent glass 102 is fixed by a frame material 104 to hermetically enclose the potting material 101. The volume of the potting material 101 is equal or smaller than the volume of the liquid crystal layer 105 at this time. While the flowable material (potting material) is essential for the purpose of reinforcement, the volume of the liquid crystal material is required to be equal to or larger than the volume of the flowable material. The reason thereof lies in that the thermal expansion and change by atm. pressure of the flowable material do not deform the liquid crystal cell, etc., and that the display characteristics stable to the environmental change are realized.
Patent JP-S56130667-A (JP)
Title: Measuring circuit for reverse recovery time of diode or the like
Inventor: AIDA AKIRA
IPC: G01R31/26
Filed: 1980-03-19
Abstract: PURPOSE:To use general analogue switch elements to measure a short reverse recovery time with a high precision, by controlling switching times of two analogue switches individually. CONSTITUTION:Element DUT to be measured is connected through detecting resistance Rd so that its forward direction becomes opposite to that of current source IS2. When the driving signal is input to terminal T, the square signal of width t1 is generated by Schmitt circuit SCH1 and is inverted by inverter IN and is input to the gate of analogue switch AS1 to turn on AS1. Thus, forward current IF is flowed to DUT, and reverse current IR is flowed back through AS1 and IS1 and is not flowed to DUT. When AS1 is turned off, IF does not become 0 immediately due to the floating capacity though IR is flowed to DUT. AS2 is caused to turn on just before turning-off of AS1 by Schmitt circuit SCH2 to short-circuit the floating capacity at the turning-off time of AS1. As a result, a very high-precision reverse recovery time value is obtained.
Patent JP-H09230426-A (JP)
Title: Shutter for camera
Inventor: TAKAMI TOKUJI
IPC: G03B9/10
Filed: 1996-02-21
Abstract: PROBLEM TO BE SOLVED: To make fitting precision or fitting strength excellent when a shutter is fitted and to make shutter small in size by using at least one of fitting parts for fitting the shutter to a camera body also as the rotary shaft of a shutter blade. SOLUTION: The back surface of a substrate is provided with a shutter baseplate 3 leaving a gap in between gap. Then, the shutter blades 4 and 5 are arranged in the gap and the actuation areas thereof are fixed. Besides, shutter fitting columns MA, MB and MC integrally formed on the back surface of the substrate are made to pierce through the baseplate 3 and extended to the lower part of the baseplate 3. The column MA is used also as the rotary shaft of the blade 4. Since the column MA is arranged within the actuation area of the shutter, it is advantageous in viewpoint of that the shutter is made small in size and the columns MA, MB and MC are satisfactorily arranged. Therefore, the degree of freedom for arranging the columns MA, MB and MC is high. Besides, the shutter is well-balanced when it is fitted and it can be made small in size.
Patent JP-S60177719-A (JP)
Title: Gold code generator
Inventor: NISHIGUCHI OSAMU
IPC: H04J13/10
Filed: 1984-02-23
Abstract: PURPOSE:To simplify the circuit constitution and to attain the cost reduction for a gold code generated by extracting M series codes out of a feedback input part to a multi-stage shift register at a code generating part. CONSTITUTION:A main control part 9 delivers signals I1-I4 and performs generation of M series codes as well as execution of the synthesizing process of gold codes. When the data on a logic ''1'' of a data bus D0 is set at a latch circuit after a start signal I1 is transmitted, the next latch circuit is set to open a gate circuit. Thus clocks are supplied all at once to each flip-flop of code generating parts 1A and 1B respectively. Then different M series codes are extracted from each code extracting part. These M series codes are synthesized by a code synthesizing circuit 5, and gold codes are produced.
Patent JP-H09201816-A (JP)
Title: Frame for molding manhole concrete pipe and molding method
Inventor: IKEDA HIRONARI
IPC: B28B23/00
Filed: 1996-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a molding frame for a manhole concrete pipe which enables an auxiliary molding die for holding a step metal to be simply attached and detached without the necessity to install a supporting pillar for the step metal in a concrete material. SOLUTION: A clamping mechanism 19 with an inverted L-shaped outer face plate 8, clamping plates 9, 11 is provided on an auxiliary molding die 4 engaged with an inner molding frame 1. In addition, a lifting mechanism 31 for lifting the auxiliary molding die 4 to an upper position where its top face part 4a is higher than the top face part 1a of the inner molding frame 1 and an advancing/receding mechanism 20 for moving back the auxiliary molding die 4 to a receding position where a concrete pipe can be drawn out, are provided in the inner molding frame 1.
Patent JP-H11220063-A (JP)
Title: Outer-periphery lower part heat dissipating semiconductor plastic package
Inventor: TAKE MORIO
IPC: C08G73/06
Filed: 1998-01-30
Abstract: PROBLEM TO BE SOLVED: To eliminate moisture absorption from the lower surface of a semiconductor chip, and to greatly improve heat dissipation property, by exposing one part of an inner layer metal plate to the external surface of a printed wiring board, by exposing a metal projection to a surface, and by exposing the inner-layer metal plate being used as the outer periphery of the printed wiring board to the rear side of the printed wiring board. SOLUTION: An inner-layer metal plate being slightly larger than a printed wiring board is insulated by a front and back circuit conductor and a thermosetting resin composition, a clearance hole with a diameter being larger than that of a through hole conductor is formed on the inner-layer metal plate, and the hole wall of the clearance hole is insulated Then, one part of the inner-layer metal plate is exposed to the external surface of the printed wiring board being used for fixing a semiconductor chip, at the same time, at least one metal projection with size being nearly the same as area for fixing the semiconductor chip is exposed to a surface. Furthermore, the inner-layer metal plate of a part corresponding to one part or the whole part of the periphery of the printed wiring board is exposed to the rear side of the printed wiring board, and the inner-layer metal plate being exposed to the outer periphery and a lower part is used for dissipating heat.
Patent JP-H10217278-A (JP)
Title: Production of bearing structure
Inventor: YUMOTO TETSUO
IPC: H05K5/03
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To produce a bearing structure possible to rotate and impossible to escape by a series of molding processes and to achieve the reduction of production cost and wt. reduction. SOLUTION: An oxyalkylene group-containing polyvinyl alcohol resin is injected to mold a temporary shaft having a large diameter part 3a to a part to be born and the part to be born of the temporary shaft is inserted to inject an aromatic polyester liquid crystal polymer to mold a bearing part 2 and this bearing part 2 is heated in hot water to elute the temporary shaft in hot water and this bearing part 2 is inserted to inject a polyacetal resin to mold a shaft and a bearing structure A wherein the shaft 3 is born in a freely rotatable manner by the bearing part 2 by molding contraction force at a time of the molding of the shaft 3 is molded.