baber/WOPTO huggingface dataset:
Patent JP-S62226206-A (JP)
Title: Control system for synchronous position
Inventor: ITO KOJI
IPC: G05D3/00
Filed: 1986-03-27
Abstract: PURPOSE:To prevent the asymmetrical properties due to disturbance by feeding the position shifts of both master and slave axes back to each position control system. CONSTITUTION:A large arch-shaped column 11 of a machine tool, etc., contains foot parts 12 and 13 symmetrical to each other and ball screw shafts 14 and 15. These shafts 14 and 15 are driven by motors 16 and 17 respectively. The motors 16 and 17 are actuated by the position command value R to secure synchronism between shift positions C1 and C2 of both parts 12 and 13. When the synchronous positioning is carried out between both parts 12 and 13 through each of position control systems 1 and 2, the command value R is supplied to both systems 1 and 2 to obtain the outputs of both systems, i.e., the mutual differentials between positions C1 and C2. Then the compensation elements H1 and H2 of both systems 1 and 2 are applied to those differentials (C1-C2) and (C2-C1) to obtain the value of compensation. This value of compensation is fed back to the value R is both systems 1 and 2 respectively. Thus the constant responsiveness is secured to the value R.
Patent JP-S51144916-A (JP)
Title: A.c. power generator
Inventor: HAZUMI KENJI
IPC: H02M5/48
Filed: 1975-06-10
Abstract: PURPOSE: A.C. power generator with a simple construction needs not prorivde a syncronous control means, by rectifying output of a high frequency power generator, providing a reverse polarity to the rectified output alternately and time selectingly regardless of the phase of the high frequency output. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H08268373-A (JP)
Title: Power assist for bicycle
Inventor: TAKURA TOSHIYASU
IPC: B62M6/55
Filed: 1995-03-28
Abstract: PURPOSE: To improve general-purpose utility and provide pertinent power assistance by starting an electric motor when the rotation speed of a pedal crank and the acceleration of a bicycle reach a level equal to or above the preset value respectively in assisting power through the transmission of the rotation of the motor to a crankshaft or the like via a reduction gear. CONSTITUTION: CPU 54 reads the rotation speed detection signal of a pedal crank from a rotation speed sensor circuit 56 via an I/O port 55, and reads the acceleration detection signal of a bicycle from an acceleration sensor circuit 57. When the rotation speed and the acceleration respectively reach a level equal to or above the present constant values, the CPU 54 sends a motor drive signal to a motor control circuit 58 via the port 55. On the other hand, the circuit 58 receives the motor drive signal, and control the drive of an electric motor 17. In other words, the rotation of the motor 17 is transmitted to a crankshaft or a wheel through a reduction gear for assisting power. Thus, this power assist can be easily mounted on a commercially available ordinary bicycle and the general-purpose utility thereof can be enhanced. In addition, pertinent power assistance can be provided.
Patent JP-2000269401-A (JP)
Title: Semiconductor device
Inventor: MUTO YASUNARI
IPC: H01L23/50
Filed: 1999-03-16
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device provided with a die pad which hardly warps, with superior adhesion with sealing resin and high strength. SOLUTION: For this semiconductor device, plural pieces of dimples 10 forming a semispherical shape are formed in a semiconductor chip mounting area, where a semiconductor chip 1 is to be mounted in the upper surface (semiconductor chip mounting surface) of the die pad 3 and the plural pieces of the dimples 11 forming the semispherical shape are formed in a state to be an alternate arrangement of the dimples 10 in the semiconductor chip mounting area in the lower surface (semiconductor chip non-mounting surface) of the die pad 3. The dimples 10 are densely arranged, within the range of not overlapping with each other and arranged in the state of being arranged in a columnar shape in a direction which crosses with the side part of the die pad 3 at a prescribed angle. The dimples 11 provided with the same shape and the same size as the dimples 10 are similarly arranged as well.  The semiconductor chip 1 is mounted on the upper surface of the die pad 3 and sealed with resin through a wiring process.
Patent JP-H06280666-A (JP)
Title: Atmospheric pressure detector for engine control
Inventor: KAKO HAJIME
IPC: G01L23/24
Filed: 1993-03-29
Abstract: PURPOSE:To detect the atmospheric pressure without detecting the fully opened condition of a throttle valve by storably holding intake pipe pressure as the atmospheric pressure when the variation amount of the intake pipe pressure falls within an allowable valve for a predetermined period. CONSTITUTION:A pressure sensor 9 for detecting the pressure in an intake pipe 2 for conducting air to an engine and a controller 10 for judging whether or not the variation amount of the detected intake pipe pressure falls within an allowable value of a preset variation amount for a predetermined period and storing the detected intake pipe pressure in a memory as the atmospheric pressure when the intak pipe pressure falls within the allowable value for the predetermined period are provided.
Patent JP-H05235054-A (JP)
Title: Field-effect semiconductor device
Inventor: SAWADA MINORU
IPC: H01L29/778
Filed: 1992-02-19
Abstract: PURPOSE:To improve a mutual conductance while a noise factor at the time of the high-frequency operation of a field-effect semiconductor device is suppressed low by a method wherein a channel layer is formed into a laminated structure consisting of an undoped InGaAs layer, an n-type InGaAs layer and an undoped InGaAs layer. CONSTITUTION:A buffer layer 2 is provided on a semi-insulative GaAs substrate 1 and moreover, a channel layer 10 is provided. This channel layer 10 consists of a layer 10a constituted of an undoped InGaAs semiconductor layer having an electron affinity larger than that of a GaAs semiconductor layer constituting the layer 2, a layer 10b consisting of an n-type InGaAs semiconductor layer, which has the electron affinity larger than that of the GaAs semiconductor layer constituting the layer 2 and is doped with an n-type impurity in a high concentration, and an undoped InGaAs layer 10c having the electron affinity larger than that of the GaAs semiconductor layer constituting the layer 2. Thereby, electrons in a channel at the time of operation of an element are brought in a first excited state and the probability of the existence of the electrons is small in the n-type InGaAs layer 10b and is increased in the undopd InGaAs layers 10 and 10c.
Patent JP-H09260738-A (JP)
Title: Piezoelectric transformer
Inventor: SUZUKI HIROMI
IPC: G11B5/02
Filed: 1996-03-26
Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric transformer having a structure such that an electrode on a transformer device side and a lead terminal made by a plate spring on a package side are pressed and come into contact with each other by the spring force, in which initial variation in the contact state of the electrode on the transformer device side and the lead terminal is small and the change with time is small. SOLUTION: A contact point part 11B has in advance an inclined angle inclined in the extending direction from a base part 12B. When a static pressure force from a transformer device 1 is applied to the contact part 11B, the base part 12B supported by a case side wall 5B is deflected, and the turn angle of the contact part 11 by the deflection of the base part 12B is canceled by the inclined angle. Consequently, the contact part 11B and the electrode of the transformer device 1 are always kept parallel to each other. The turn angle can be also canceled by a structure in which the contact part 11B is provided at the end of a short cantilever-structured second plate spring, extending from the end, in the extending direction of the base part 12B toward the case side wall 5B.
Patent JP-H02194146-A (JP)
Title: High strength hot rolled steel sheet having excellent cold workability and surface quality and its manufacture
Inventor: KISHIDA KOJI
IPC: C21D9/46
Filed: 1989-03-24
Abstract: PURPOSE:To manufacture the steel sheet having excellent cold workability and surface quality by subjecting a steel contg. specific ratios of C, Mn, S, Cu, P, Si, N, SolAl and B to hot rolling under specific conditions and coiling it. CONSTITUTION:A steel contg., by weight, 0.0005 to 0.015% C, 0.05 to 0.5% Mn, 0.001 to 0.030% S, 1.0 to 2.2% Cu, <=0.200% P, <=1.0% Si, <=0.0050% N, 0.002 to 0.10% SolAl, 0.0002 to 0.0030% B and the balance Fe with inevitable elements is subjected to hot rolling at the temp. of Ar3 or above. After that, the hot rolled steel band is coiled at <=500 deg.C, preferably at about <=350 deg.C. In this way, the generation of pearlite is evaded to obtain the high strength hot rolled steel sheet essentially consisting of a ferritic phase and having excellent cold workability and surface quality can be obtd.
Patent JP-H10250800-A (JP)
Title: Multiple lock type preventive device against mistaken oil-feeding
Inventor: SATO KAZUO
IPC: B67D7/32
Filed: 1997-03-07
Abstract: PROBLEM TO BE SOLVED: To prevent mistaken oil-feeding brought at feeding oil, by additionally providing another lock for selection of pipes to a tilting bracket for locking a bottom valve as a foolproof device and forming the key to have a pin-shape to discriminate it from other keys. SOLUTION: A key K1a is inserted in the key hole of a discharge valve and turned anticlockwise to raise an inverted L-shaped hook 10. And at the same time, the discharge valve key 23 is separated from a hook lock 20 as the key K1a is inserted therein. In this time, since the rising stroke of the hook 10 is small, a handle lock 15 of the bottom valve is not tilted and the bottom valve handle 5 is not released. Then, a pin-shaped key is horizontally inserted into a pin-shaped key hole 25 formed on the external wall of the inclined lock part 21 to unlock the inclined lock part 21 to manually tilt it by 90 degrees in maximum. The bottom valve handle lock 15 is completely unlocked to release the bottom valve handle.
Patent JP-S56165970-A (JP)
Title: Tape time display system
Inventor: NAGASAWA KENICHI
IPC: G11B27/34
Filed: 1980-05-26
Abstract: PURPOSE:To enable the operating display for tape time at all times, by detecting the reel rotating speed at constant speed running of a cassette tape and detecting the reel rotating speed immediately before the fast forwarding and rewinding operations. CONSTITUTION:Pulse signals responding to the rotating period of reels SR, DR are picked up with a rotating discs (a), (b) fitted to supplying and winding side reels SR, DR and sensors Sa, Sb, and either one of the signals is fed to a CPU via a switch SW1. The residual amount mode or running mode is discriminated with the output signal of switches SW2 and SW3. The operation at constant speed running is made with programs and constant data stored in an ROM, and the tape residual amount time or tape running time is calculated. When a fast forwarding or rewinding button is depressed, the tape time is calculated from the newest rotating period signal stored in the RAM and displayed 12 at via a display driver 11. Thus, the tape time can always be operated and displayed.
Patent JP-S56166277-A (JP)
Title: Ink for marking pen
Inventor: KAWAGUCHI KEIZOU
IPC: C09D11/17
Filed: 1980-05-26
Abstract: PURPOSE: The titled ink, containing a coloring agent, an organic solvent and an amino acid derivative expressed by a specific formula, capable of suppressing the poor writing when used without a cap and retaining the rapid drying of the script, and suitable for a white board marker.  
     CONSTITUTION: An ink prepared by mixing (A) a coloring agent, e.g. a dye or pigment, with (B) an organic solvent, (C) an N-acrylated amino acid derivative expressed by the formula (R is 4W18C alkyl; R' is 1W18C alkyl; n is 1W4; M is H, alkali metal or alkaline earth metal), preferably at a weight ratio between the components (A) and (B) of 1W20%: 40W90%, and adding 0.5W10%, preferably 1W 5%, component (C) thereto.  
     EFFECT: The script is rapidly dried in 15W20sec, and writing is possible in 4hr without a cap. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S59196833-A (JP)
Title: Method and apparatus for producing anhydrous methanol
Inventor: AKAHA TOSHIAKI
IPC: B01D3/00
Filed: 1983-04-21
Abstract: PURPOSE:To obtain the titled anhydrous alcohol, economically, by heating the liquid in the first concentration column with the compressed column-top gas of the column, and at the same time, heating the atmospheric and azeotropic distillation column and the solvent recovery column with the column-top vapor of the second concentration column operating under pressure, and supplying the condensation liquid obtained after the heating to the second distillation column. CONSTITUTION:The column-top vapor 2 of the first concentration column A operating under normal pressure is compressed with the compressor G attached to the column A, and the body of the column A is heated (E-2) with the compressed gas 2'. A part (4) of the condensed liquid obtained after the heating is supplied to the second concentration column B, and the remaining part (3) is recycled to the top of the column A. The distillation column B is operated under pressure. The azeotropic distillation column C and the solvent recovery column D both of them are operated under normal pressure are heated (E-4, E-6) with the column-top vapor 5 of the column B, and a part (7) of the condensed liquid obtained after the heating is recycled to the top of the column B and the remaining part (8) is fed to the column C. The bottom liquid 23 of the column B is recycled to the column A. Anhydrous ethanol 11 can be produced directly, with low energy consumption, from a dilute and slurry raw material of ethanol 1.
Patent JP-S51147798-A (JP)
Title: Dielectric composite
Inventor: OOE ETSUO
IPC: H01B3/20
Filed: 1975-06-13
Abstract: PURPOSE: The dielectric composite in less increase in the dielectric tangent by the deterioration under heat. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H02250477-A (JP)
Title: Video signal processing circuit
Inventor: SHIBAYAMA TAKECHIKA
IPC: H04N5/66
Filed: 1989-03-23
Abstract: PURPOSE:To obtain maximum contrast and to preclude deterioration in picture quality due to light-dark inversion by equalizing the pedestal level of the input or output signal of a clip circuit, which removes a signal smaller than the pedestal level of a supplied video signal, to the input voltage with which a liquid crystal panel has minimum transmissivity. CONSTITUTION:Respective clamp circuits 6R, 6G, and 6B equalize the pedestal levels of respective signals to the clip levels of dark clip circuits 7R, 7G, and 7B of following stages, which remove signals smaller than the pedestal levels. Further, clamp circuits 8R, 8G, and 8B are adjusted to the pedestal levels of the respective signals to the voltage level (voltage at a point (e)) at which the liquid crystal panels 5R, 5G, and 5B go to the minimum transmissivity. Consequently, the maximum contrast that the liquid crystal panels have is obtained, the light-dark inversion is precluded, and an image of superior picture quality can be reproduced.
Patent JP-H06255758-A (JP)
Title: Container arranging device
Inventor: TSURUYAMA KATSUJI
IPC: B65G47/24
Filed: 1993-03-05
Abstract: PURPOSE:To obtain a container arranging device, which can enlarge the compatibility of dimensions of containers to be carried and which has high general purpose applicability, by providing a robot for aligning the direction of containers and for delivering them from a first carrying conveyor onto a second carrying conveyor and a correcting means for standing the containers carrier by the conveyor. CONSTITUTION:This device 1 is provided with a first and a second carrying conveyors 4, 10, a robot 11 for delivering containers 3, a guide member 24 and a chute 26 for standing the fallen containers 3. When a container 3 supplied onto the first carrying conveyor 4 is carried to a holding position A, the container 3 is sucked and gripped by the robot 11, and delivered into each bucket 10 of the second carrying conveyor 10. The robot 11 turns the container 3 by a required quantity, and aligns the direction of them in a specific direction. Thereafter, each container 3 carried by the second carrying conveyor 10 is stood from the fallen condition by the guide member 24 and the chute 26.
Patent JP-H05274092-A (JP)
Title: System and method for duplication in external storage device
IPC: G06F3/06
Filed: 1992-03-27
Abstract: PURPOSE:To heighten reliability and to shorten processing time by providing a detail information storage file in which the logical division part name of a duplication origin, a file name before the name of the duplication origin is changed, and a file name after the name of the duplication origin is changed are written. CONSTITUTION:When a duplication start instruction is commanded from terminal equipment 1, the same name file retrieval part of a control part 5 decides whether or not a file with the same name exists in the duplication origin. When it exists, it is decided whether or not the detail information storage file 6 is generated. When no such file is generated, the detail information storage file generating part of the control part 5 generates the detail information storage file 6. When the detail information storage file 6 is already generated, the detail information storage file write part of the control part 6 writes the file name of the logical division part of the duplication origin on the detail information storage file 6. The file name change part of a change part 8 changes the file name to an arbitrary name. Thereby, it is possible to prevent a required file from being deleted accidentally or the file from being destroyed, etc.
Patent JP-2000264505-A (JP)
Title: Press roll of web winding device
Inventor: YUKI KOICHI
IPC: B65H27/00
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To provide a press roll capable of being installed in a narrow space and giving a nip pressure of sufficiently large size. SOLUTION: A press roll is composed of a plurality of section rolls 3 arranged in series on a support beam 2, a coupling 14 to couple the section rolls 3 with one another, and a motor to transmit the rotational power to one of the section rolls 3. The arrangement further includes minor diameter coupling shafts 11 formed at the ends of each section roll 3, a pair of bearings 21 fitted on the coupling shafts 11, and a minor diameter supporting cylinder 22 supported by the two bearings 21 and having a smaller diameter than the rolls, wherein the cylinder 22 is furnished in the center with a ring-shaped supporting part 23 having a diameter some smaller than the outside diameter of the rolls, and part of the ring-shaped supporting part 23 is attached to the support beam 2 through a bracket 5.
Patent JP-S51147031-A (JP)
Title: Side vaporizing type oil combustor
Inventor: NAKAMURA KAZUHARU
IPC: F23D3/18
Filed: 1975-06-12
Abstract: PURPOSE: Practical oil combustor of the above description whith can obtain satisfactory heating value even with combination with the double funnel type combustion room. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-2000265420-A (JP)
Title: Covering net type rock-fall preventive construction method
Inventor: KUBOTA TOSHIO
IPC: E01F7/04
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To enhance impact resistance by arranging a connecting metal fitting for moving a sandwiching place when force not less than sandwiching frictional force is applied by holding ropes by constant sandwiching force and a shock absorbing part for extending the ropes when tensile force not less than a fixed quantity is applied, and opening a skirt of a net body. SOLUTION: Crossing parts of horizontal ropes 3 and vertical ropes 4 are connected by crossing part metal fittings 2. When installing a net body, shock absorbing part metal fittings 1 are installed in end parts of the vertical/horizontal ropes 3, 4, and the shock absorbing metal fittings 1 are connected to rock anchors 6 driven/fixed in an upper edge part and both side parts of a net covering object place. When a fall of rock is caused, a falling rock collides with the horizontal ropes 3 in the middle of falling, and is decelerated by the frictional force to slide down from an opening place under the net body. When the falling rock is large, the horizontal ropes 3 extend against sandwiching force of the shock absorbing part metal fittings 1 when tensile force not less than a fixed quantity is applied.  A crossing connecting position of the vertical/horizontal ropes 3, 4 changes, and when force applied to the crossing part acts as tensile force of the vertical ropes 4, the vertical ropes 4 extend to absorb impact force to thereby secure safety as well as to improve workability, economical efficiency and durability of the net body.
Patent JP-S61235507-A (JP)
Title: Production of killed steel low in nitrogen content
Inventor: JIYAN MISHIERU NOO
IPC: B22D1/00
Filed: 1986-03-31
Abstract: The process for producing killed steel having a low content of nitrogen comprises pouring an effervescent steel from a converter into a ladle in which there are added to the molten steel contained in the ladle, in the course of the pouring operation, additives for killing the steel, such as aluminium, silicon, etc. . . . The invention comprises pouring the effervescent steel into the ladle before introducing the killing additives, and prior to the introduction of the killing additives carbon dioxide in the form of carbon dioxide snow in the vicinity of the lower part of the pouring jet and on the surface of the bath of steel in the ladle in a quantity sufficient to protect the surface of the molten metal from the surrounding air upon the introduction of the killing additives into the ladle.
Patent JP-H11325950-A (JP)
Title: Local navigation system
Inventor: THEIMER WOLFGANG
IPC: G01C21/00
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To reduce the necessity of a memory for holding the data of individual course, and detailed information about all regions along a route by disposing a route calculator remotely from a vehicle. SOLUTION: A route calculator is disposed remotely from a vehicle and a processor moving together with a vehicle is provided with means for loading a proposed route and a bypass route. After a starting point and a goal are inputted by a driver, for example, a microcontroller unit MCU 15 establishes connection with a service provider 14 through a cellular telephone 19, a base station 12 and a mobile switching center MSC 13. The service provider 14 calculates a route involving an optimal path and an attracter region based on starting point and a goal information. The service provider 14 transmits the determined information through a cellular network to a navigation system 10 where the information is stored in a memory 16.