baber/WOPTO huggingface dataset:
Patent JP-2001102879-A (JP)
Title: Power amplifier for high frequency
Inventor: FUJII YASUTO
IPC: H03F3/60
Filed: 1999-09-28
Abstract: PROBLEM TO BE SOLVED: To further enhance the efficiency of a high frequency power amplifier while controlling the higher harmonic wave of an output matching circuit. SOLUTION: This high frequency power amplifier is provided with high frequency power amplifying parts Q3 and Q4 in dual stage configuration, input matching circuit 22 connected to an input electrode Q3 of the prestage, inter- stage matching circuit 23, output matching circuit 24 connected to an output electrode 32 of the poststage and DC current bias circuit connected between the output electrode 28 of the prestage and the inter-stage matching circuit 23 and composed of a distribution constant line SL12 having a resistance value higher than 60 mΩ and lower than 130 mΩ. While attaining matching of impedance, the drop of a bias voltage is reduced and the efficiency of power amplification can be improved. While attaining miniaturization, power can be amplified with higher efficiency.
Patent JP-H03138373-A (JP)
Title: Ceramic coated material having excellent wear resistance and thermal impact resistance
Inventor: WATANABE HISASHI
IPC: C23C18/12
Filed: 1989-10-24
Abstract: PURPOSE:To produce the ceramic coated material having excellent wear resistance and heat resistance by forming a ceramic coating consisting of Al2O3 and Cr2O3 under specific conditions on an iron/chromium alloy steel contg. a specific ratio of Cr. CONSTITUTION:The stage for immersing the iron/chromium alloy steel contg. >=3wt.% Cr into a slurry consisting of the Al2O3 and chromic anhydride (CrO3) having <=2mu average grain size and water to apply the slurry on the alloy steel and heating the alloy to form the porous film of the Al2O3/Cr2O3 system, then executing impregnation-calcination by using a satd. aq. chromic acid soln. is repeated about 7 to 8 times. The iron/chromium alloy steel is used as the base material and the ceramic film which contains 30 to 80wt.% particles of the Al2O3 and Cr2O3 having <=2mu average grain size as aggregate, consists of the balance <=0.1mu Cr2O3 formed by the calcination of the impregnated chromic acid and has the excellent hardness, wear resistance and thermal impact resistance is obtd. on the surface thereof.
Patent JP-H05123827-A (JP)
Title: Device and method for manufacture of mold part for casting
Inventor: RAINAA ROMERU
IPC: B22C15/24
Filed: 1991-10-23
Abstract: PURPOSE: To provide a molding apparatus and a molding method for mold parts, with which the automatic assembly of mutual mold parts is achieved, the molding work is improved, the molding can be executed by using various kinds of molding materials having each casting characteristic and using a treating parameter in the molding material characteristic according to the use of this molding material and particularly, the working cost and the necessary time of the molding can be saved. CONSTITUTION: In the molding apparatus of the mold parts for casting, such as a sand core or sand shell, a mold unit 2 for molding at least two mold parts, at least two shooting heads 7a, 7b and at least two sand magazines 6a, 6b having shooting zones 4a, 4b separately arranged in each shooting hood 4. Each of the shooting heads 7a, 7b is pressurized with each individual pressure air sources 11a, 11b for shooting.
Patent JP-S63128818-A (JP)
Title: Multiple conversion circuit
Inventor: KATO YUJI
IPC: G06F5/00
Filed: 1986-11-18
Abstract: PURPOSE:To facilitate large scale integration by controlling the storage of a serial data into a buffer group via a timing generating circuit comprising shift registers and outputting sequentially a column buffer output via a corresponding selector thereby reducing the equivalent gate. CONSTITUTION:A shift register comprising edge trigger form multi-stage flip- flops EF1-EF8 is operated by a frame pulse of a clock synchronously with an input timing of serial data IN1-IN8. Data IN1-IN8 are stored respectively in a row buffer comprising edge trigger form flip-flops F11-F18, F21-F28 of each row buffer of a matrix buffer group. The stored data is converted into a parallel data sequentially and outputted in response to the select signal via selectors SEL1-SEL8 corresponding to each column. The number of shift registers is constituted less to reduce the equivalent gate and to facilitate large scale integration.
Patent JP-S61150172-A (JP)
Title: Outermost track detecting system
Inventor: SUZUKI TAKASHI
IPC: G01B11/00
Filed: 1984-12-25
Abstract: PURPOSE:To lower a consumed power for detecting an outermost track by feeding power to an outer most track detecting means when a step signal counting value to a step motor for moving a carriage block is situated within a predetermined range. CONSTITUTION:A step signal from a host computer 1 is impressed, a movement of a carriage block section 5 is controlled through a driving circuit 9 and a positioning of a disk 3 of a magnetic head 4 to a desired track is performed. This step signal is also supplied to a counter 10 to increase and decrease a count value. When the count value goes to zero or a predetermined range, a changeover circuit 12 is controlled by a microprocessor 11, an electric power is suppied to an outermost track detecting means of a light emitting element and a photodetecting element 6, 7, an amplifier 8 and the like, and during detecting the outermost track a high level track 00 signal is outputted from a microprocessor 11. By a construction in which the electric power is supplied only during required, a consumed electric power for detecting the outermost track is lowered.
Patent JP-H09109018-A (JP)
Title: Brittle material machining method and machining device therefor
Inventor: HACHISUGA MASARU
IPC: B24B35/00
Filed: 1995-10-24
Abstract: PROBLEM TO BE SOLVED: To machine brittle material easily even if objective shape is complicated by vibrating a hammer ultrasonically, and bringing the hammer into contact with the brittle material so that the amplitude direction of the hammer has a normal line component at a contact point with the brittle material. SOLUTION: When a hammer 11 formed of diamond or the like is pressed with suitable force to the surface of brittle material such as glass 1, the vicinity of a part pressed by the hammer 11 is plastically deformed. The surface of a workpiece 1 is therefore hammered continuously by the hammer 11 with suitable roundness at the tip, and this workpiece 1 is relatively moved synchronously with the motion of the hammer 11 to generate a shape by deformation processing. In the case of increasing the machining quantity, the output adjusting volume of an oscillator is operated to adjust for the output increase of alternating voltage applied to a vibrator so as to enlarge the amplitude of the hammer 11.
Patent JP-H09110862-A (JP)
Title: Upright production apparatus and production of ester cyclic dimer
Inventor: OBARA HITOMI
IPC: B01J19/20
Filed: 1995-10-24
Abstract: PROBLEM TO BE SOLVED: To provide both an apparatus for producing an ester cyclic dimer, having a proper retention time and a sufficient vapor-liquid surface and a method for producing the dimer. SOLUTION: First, a catalyst is thrown into a main body 10 of a reactor. A prepolymer of an α-hydroxycarboxylic acid is supplied from an α- hydroxycarboxylic acid prepolymer tank 1 to the main body 10 of the reactor by a liquid sending pump 13. The pressure in the main body 10 of the reactor is kept under fixed pressure by a vacuum pump 2 and the temperature of the main body 10 of the reactor is controlled at a fixed temperature by a heating medium to a heating medium jacket 7. A helical ribbon blade 8 is rotated by a motor. An ester cyclic dimer formed into a thin film is synthesized while raking up the α-hydroxycarboxylic acid prepolymer containing the catalyst stored in the lower part of the main body 10 of the reactor. The ester cyclic dimer is gasified and sent to a condenser 9. The ester cyclic dimer is condensed in the condenser 9.
Patent JP-H07109625-A (JP)
Title: Detector for roving breakage of roving frame
Inventor: OGISO TAKASHI
IPC: D01H13/16
Filed: 1993-10-06
Abstract: PURPOSE:To provide a detector for the roving breakage without disturbing the roving piecing operation. CONSTITUTION:This detector for the roving breakage is provided by arranging reflecting type photoelectric detectors (25a) and (25b) composed of a projector 23 and a receptacle 24 respectively corresponding to a roving (10a) in the front row and a roving (10b) in the rear row extending over a front draft roller and flyer tops on the respective rovings (10a) and (10b) in a state of one row in the longitudinal direction of a frame. The respective reflecting type photoelectric detectors (25a) and (25b) have focal lengths according to distances to the corresponding rovings (10a) and (10b). Thereby, the respective reflecting type photoelectric detectors (25a) and (25b) are capable of detecting the rovings (10a) and (10b) in the front and rear rows at the different distances, and the roving piecing operation is facilitated by a structure equipped with the detectors (25a) and (25b) installed only on one side of the rovings (10a) and (10b).
Patent JP-H03139536-A (JP)
Title: Production of open-cell crosslinked ethylene resin foam
Inventor: SENUMA AKITAKA
IPC: C08L23/04
Filed: 1989-10-25
Abstract: PURPOSE:To obtain the title foam improved in a foaming efficiency and a crosslinking efficiency by sealing the surface of a specified foam. CONSTITUTION:A sheet is obtained by molding a composition for an open-cell crosslinked ethylene resin foam comprising 100 pts.wt. ethylene resin, 1-30 pts.wt. blowing agent of a foaming temperature (Tf) of 90-220 deg.C, 0.2-10 pts.wt. organic peroxide of a 10-min half-life temperature (Tp) of 100-220 deg.C and 0.01-10 pts.wt. compound selected from among an organopolysiloxane of formula I [wherein R<1> is an aliphatic unsaturated group; R<2> is an (un)substituted monovalent hydrocarbon group except R<1>; 0<x<1; 0.5<y<3; and 1<x+y<3], a silicon oil of formula II [wherein R is an (un)substituted monovalent hydrocarbon group; and n >=10], a polyether of formula III (wherein R is H or an alkyl; (a), (b) and (c) are each 0 or a positive integer, and (a+b+c)=10), etc., and satisfying formula IV. A 0.03-0.8mm thick film comprising 100 pts.wt. ethylene resin and 0.05-10 pts.wt. organic peroxide is laid on at least either surface of the sheet and heated to 120-300 deg.C.
Patent JP-H04153942-A (JP)
Title: Reel motor driving device
Inventor: WATANABE TATSUYA
IPC: G11B15/43
Filed: 1990-10-17
Abstract: PURPOSE:To keep tension approximately constant and to stably run a tape by increasing an application current under the control of a driving current and decreasing the application current under the control of a control current. CONSTITUTION:When the loading torque of a reel motor on the wind-up side is below a specified value, the reel radius on the tape supply side is detected from a reel rotation speed, the electrical self braking torque is detected from the rotation speed under the control of the control current and the control current for obtaining the control tension is calculated. When the loading torque of the reel motor on the wind-up side is above the specified value and when the following conditions are satisfied: TG>FS.(alpha)max.(RT)max, where a reel controlling tension on the tape supply side is FS, max. reel diameter on the roll up side is (RT)max, max. alpha taking into account the deterioration of the tape and mechanism and the variation is (alpha)max and the wind-up torque is TG, it is found that the controlling tension FS exceeds the specified value and the control current of the reel motor on the tape supply side is changed in such direction that the tension can be reduced. Thus, the tension can be kept approximately constant.
Patent JP-H06127243-A (JP)
Title: Alignment control method of vehicle suspension device
Inventor: MIICHI YOSHIAKI
IPC: B60G17/015
Filed: 1992-10-14
Abstract: PURPOSE:To improve the straight course stability in traveling at high speed and the steering property in traveling at low speed by increasing the degree of controlling the toe angle for the change in the steering angle when the steering angle exceeds the specified value, and thereby realizing the alignment control of the vehicle suspension device. CONSTITUTION:Actuator mechanisms 5, 8 having variable arm length in a suspension device are operated by a controller and a driving circuit. After the correction value of the respective handle angles is obtained, the control gain is obtained from the relationship of the controller handle angle. The control gain is set to the specified value when the handle angle is below the specified value, while the control gain is gradually increased as the handle angle is increased when the handle angle exceeds the specified value. This constitution allows the toe angle to be greatly changed when the vehicle is steered at a large steering angle, while preventing the toe angle from being greatly changed in the range of small steering angle.
Patent JP-H08133534-A (JP)
Title: Supply device of machine glazed paper
Inventor: TANAKA YOSHINORI
IPC: G07B1/00
Filed: 1994-11-10
Abstract: PURPOSE: To provide a supply device of machine glazed paper by which an automatic paper feeding condition becomes possible only by setting machine glazed paper in a machine glazed paper loading part and operability of an operator can be remarkably improved while being simple constitution. CONSTITUTION: When machine glazed paper 14 is placed in the designated direction on a driving roller 50A and an idle roller 50B arranged in parallel to each other, the whole machine glazed paper 14 is rotated in the winding direction (the anticlockwise direction) according to rotation of the driving roller 50A. When the winding end 14B of the machine glazed paper 14 is positioned below, it falls in a clearance G formed between the rollers 50A and 50B by dead weight, and is detected by a winding end detecting sensor 56.  Afterwards, the driving roller 50A rotates in the inverse direction, and the whole machine glazed paper 14 is rotated in the delivering direction (the clockwise direction), and the machine glazed paper 14 is delivered, and is introduced to a machine glazed paper supply passage 20 through guide plate pairs 70, and is put in a sandwiched condition by feeding roller pairs 16.
Patent JP-H08135596-A (JP)
Title: Impeller for centrifugal blower
Inventor: KIDERA YASUHITO
IPC: F04D29/30
Filed: 1994-11-10
Abstract: PURPOSE: To reduce the turbulent nose of a one side suction type centrifugal blower impeller by intensifying air blowout in radial direction in a portion from a suction side end for certain distance, thereby suppressing recirculation flow in a casing and reducing an eddy. CONSTITUTION: In a one side suction type, by being held with an end ring 21 and an annular ring 23 so as to form side face of a cylinder of the impeller 2 from an end 2b for certain distance. Plural plate type blades 25 are similarly installed so as to form side face in the remaining portion of the cylinder of the impeller 2. Outlet angle of blades 24 between extension direction at outlet side end and direction opposite to circumferential speed vector of blades 24 is set to be smaller than outlet angle of blades 25 in the remaining portion. At least in the remaining portion, outlet angle of blade 25 is larger than 90 deg. so as to be sirocco type.
Patent JP-H01119182-A (JP)
Title: Teletext receiver
Inventor: KOTAKA YOSHIKAZU
IPC: H04N7/08
Filed: 1987-10-31
Abstract: PURPOSE:To surely looking and listening newest necessary page information with an easy operation by informing a user immediately that the program information of a television character broadcasting which the user reserves is updated. CONSTITUTION:The title receiver is equipped with updating detecting means 6-8 to detect that the page information is updated, and updating display preparing means 18 to 20 to display an updating display to indicate that the updating is executed on a displaying screen based on the detecting outputs of the updating detecting means 6-8. Consequently, since the updating display can be displayed on the displaying screen based on the detecting outputs of the updating detecting means 6-8, the user can recognize that the updating is executed to the page information of the television character broadcasting. Thus, the user can view the newest necessary page information easily.
Patent JP-S62138180-A (JP)
Inventor: SUZUKI NOBUKATSU
IPC: A24F13/06
Filed: 1985-12-11
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-H02122157-A (JP)
Title: Hot-water supplier with noise-suppressing function
Inventor: MAEDA TOSHIMASA
IPC: F24H9/00
Filed: 1988-10-31
Abstract: PURPOSE:To produce hot-water supplying equipment with a function to suppress noise by making air-feeding fans respectively for two combustion chambers differ from each other in fan characteristics, such as supply air pressure, number of revolutions, and shape of the fan. CONSTITUTION:Each unit U1, U2 of hot-water supplying equipment comprises a gas- feeding line P-1 and a heat-exchange line P-2. By igniting the gas sent by the gas- feeding line P-1 to a gas nozzle 17, the water flowing through the heat-exchange line P-2 is turned to hot water by the heat of the combustion and supplied through a supply main 24 to outlets requiring hot water. The exhaust gas produced at the respective combustion chambers 16, 16 of the hot-water supplying units U1, U2 is passed through respective exhaust gas inlets 36, 37 into an exhaust gas chamber 19 provided at an upper position in the casing 10 and then into a flue and discharged out of the equipment. Since, for the supply of air for combustion to the combustion chambers 16, 16 in the above-mentioned constitution and method, the equipment is provided with air-feeding fans 18, 18 which differ from each other in fan characteristics, vibration, noises, and the like that result from disorder in the air-feeding system are prevented from resonance and amplification when the flows of exhaust gas are joined, such as in extending the flue, and the exhaust noise can be reduced.
Patent JP-S63129710-A (JP)
Title: Signal processing unit
Inventor: AKATA MASAO
IPC: H03M1/12
Filed: 1986-11-19
Abstract: PURPOSE:To improve the accuracy of evaluation of performance by providing a scan path register between A/D, D/A conversion section and a digital signal processing unit respectively so as to measure the characteristic of each section individually. CONSTITUTION:The level of a control terminal C of scan path register 13, 14 is brought into an H level in a proper timing and a signal inputted from an analog input terminal 1 is observed at a scan path output terminal 12a to measure the characteristic of an A/D conversion section. The signal inputted from a scan path input terminal 11b is observed by an analog output terminal 2 to measure the characteristic of the D/A conversion section. Similarly, the signal inputted to a scan path input terminal 11a is observed by a PCM signal of a PCM output terminal 6 to measure the characteristic of the digital signal processing unit 5 from the input terminal I11 to the output terminal P11, and the characteristic of the digital signal processing unit 5 from the input terminal I12 to the output terminal P12 is measured by observing the PCM signal inputted from a PCM input terminal 7 at the scan path output terminal 12b.
Patent JP-H01119104-A (JP)
Title: Grounding type multiple folded antenna system
Inventor: OKUDA YOSHINORI
IPC: H01Q9/42
Filed: 1987-10-30
Abstract: PURPOSE:To form an antenna system in which no radiant efficiency is lowered and with low height by forming a multiple folded antenna, connecting a matching apparatus to the antenna, and enabling impedance at a feeding point to be matched even when the frequency of a transmission power is varied. CONSTITUTION:The transmission power outputted from a transmitter 2 is fed to the feeding terminal A of a sub conductor 8 via the matching apparatus 3. The matching apparatus 3 performs a function to transmit a broadcasting program, etc., without lowering the radiant efficiency at the time of radiating an electromagnetic wave to a space to feed the transmission power to the multiple folded antenna 28 in a state where the impedance of the feeding point at the feeding terminal A of the multiple folded antenna 28 is matched corresponding to the frequency of the transmission power. Therefore, it is possible to fold the sub conductor for arbitrary number of times in spite of the point of a current loop or a current node in the distribution of the standing wave of the electromagnetic wave to be radiated to the space. In such a way, it is possible to suppress the height of the grounding type multiple folded antenna 28 and to reduce a space required for the installation of the antenna.
Patent JP-H07128882-A (JP)
Title: Electrophotographic photoreceptor
Inventor: AMANO MASAYO
IPC: G03G5/06
Filed: 1993-11-08
Abstract: PURPOSE:To obtain an electrophotographic photoreceptor for a copying machine having high sensitivity and excellent in repetitive characteristics by using novel org. materials in a photosensitive layer. CONSTITUTION:This electrophotographic photoreceptor contains at least one kind of distyryl compd. represented by formula I as an electric charge transferring material in the electric charge transferring layer of a photosensitive layer formed on the electric conductive substrate and at least one kind of bisazo compd. represented by formula II, etc., as an electric charge generating material in the electric charge generating layer. In the formula I, each of Ar1-Ar4 is optionally substd. aryl or an arom. heterocyclic group. In the formula II, each of R1 and R2 is H or alkyl and A is a residue of a coupler.
Patent JP-H08113134-A (JP)
Title: Braking force control device of eddy current type reduction gear
Inventor: KUROSAWA IKUO
IPC: B60T8/18
Filed: 1994-10-18
Abstract: PURPOSE: To prevent the locking of rear wheels by increasing and decreasing the operating amount of a magnet holding circle to the inside of a braking drum according to the empty-loading condition. CONSTITUTION: A guide tube 29 is provided inside a braking drum 27 which rotates together with the output shaft 5 of a transmission 10. To the peripheral wall of the guide tube 29 opposing to the braking drum 27, numerous ferromagnetic plates 28 are combined at the same intervals in the peripheral direction. A magnet holding circle 24 furnishing magnets 25 opposing to the ferromagnetic plates 28 on the peripheral wall is held to the guide tube 29 movable in the axial direction step by step.  The loading amount of a vehicle is found from the signal of an empty-loading sensor 9 to detect the empty-loading condition of the vehicle, an optimum braking force is found from the loading amount of the vehicle, an object operating amount of magnet holding circle 24 corresponding to the optimum braking force is found from the control map of an electron control device 12 corresponding to the running condition such as the car speed, and a servomotor 23 to drive the magnet holding circle 24 is controlled by the electron control device 12.