baber/WOPTO huggingface dataset:
Patent JP-2000004058-A (JP)
Title: Fiber optical amplifier and amplifying method of optical signal
Inventor: SHAW HERBERT J
IPC: G02B6/26
Filed: 1999-06-09
Abstract: PROBLEM TO BE SOLVED: To inject a signal using an identical multiplication coupler by pumping a lasing material and causing an inversion distribution in a doped material so that a signal is amplified by induction radiation in passing through the doped material thereby realizing symmetrical bi-directional amplification. SOLUTION: A pumping illumination source 42 is coupled with the fiber 12a of a coupler and provides the port A of a multiplication coupler with pumping illumination. A signal to be amplified is coupled with one end of a fiber 12b at port C of the coupler. Pumping illumination from the light source 42 and the signal to be amplified are coupled at port D of the coupler through amplifying function of the coupler. The pair of signal wavelengths are delivered to an ND:YAG crystal 44 to be coupled with the fiber 12b. A signal input at port C is amplified in the ND:YAG crystal 44 and coupled with an optical fiber 46 before being transmitted through an optical fiber system.
Patent JP-H0242756-A (JP)
Title: Semiconductor storage device
Inventor: SAWADA SEIJI
IPC: H01L27/10
Filed: 1988-06-28
Abstract: PURPOSE:To reduce a standby current by a method wherein a periphery of a P-well is surrounded by a P<+> diffusion layer in order to make a substrate current shallow. CONSTITUTION:A high-concentration P-type impurity is implanted into a P-type silicon substrate 1; a P<+> diffusion layer 4 is formed. A low-concentration N-type impurity is implanted into the layer; a P-well 2 whose P-type impurity concentration is low and whose concentration is higher than that of the P-type silicon substrate 1 is formed by using the P<+> diffusion layer 4; then, a high- concentration N-type impurity is implanted; an N<+> diffusion layer 3 is formed. When an input voltage VIL is applied to an external input terminal 5 and a voltage which is lower than a substrate voltage VBB is applied by an undershoot, the N<+> diffusion layer 3 and the P-well 2 become a forward bias; a potential of the N<+> diffusion layer 3 behaves as shown by a broken line; an electron moves to the side of the P-type silicon substrate 1; since the P-type impurity in the P<+> diffusion layer 4 is more than that in the P-well 2, the electron hardly injected into the P-type substrate 1. When the P-well part is surrounded by the P<+> diffusion layer in this manner, a standby current of a semiconductor storage device can be reduced.
Patent JP-H0326433-A (JP)
Title: Work assembling method
Inventor: FUJIWARA SATORU
IPC: B65G47/90
Filed: 1989-06-22
Abstract: PURPOSE:To provide transportation without looseness and complete assembling by- fitting a ring part and a sheet body around the protruding part of the first jig of the same shape as that of a metal mold press part inserted in the hole of the second jig for transporting them up to a metal mold, and setting the second jig at the metal mold for pressing. CONSTITUTION:On the first jig 10 fixed on a conveyer 9, the second jig 11 is placed, and around the protruding part 17 of the first jig 10, a ring part 3 and a sheet body 4 are fitted so as to fit the positioning hole 46 of the sheet body 4 around the positioning protruding part 16 of the second jig 11. Transportation is made in the direction of a metal mold, the hand part 15 of the second jig 11 is held by the arm chuck part of a transportation mechanism, and an arm is raised to remove the second jig 11 from the first jig 10, so as to transport it up to the upper part of the metal mold pressed surface of the same shape as the protruding part 17 of the first jig 10 and lower the arm for regular placing. Then an upper mold is lowered for pressing and assembling of the ring part 3 on the sheet body 4, and the upper mold is raised to raise the arm so as to remove the second jig 11 from the press surface for returning it, and after removing the arm, the sheet body 4 in which the ring part 3 has been assembled, is taken out from the second jig 11.
Patent JP-S6054432-A (JP)
Title: Semiconductor exposure device
Inventor: ISOHATA JIYUNJI
IPC: H01L21/027
Filed: 1983-09-05
Abstract: PURPOSE:To enable to accurately match at the position without fluctuating the pattern image of a mask by flowing a fluid of the prescribed temperature and prescribed flow rate between the mask and a wafer. CONSTITUTION:A mask 1 and a wafer 3 are matched at the position when the pattern of the mask 1 is seized on the wafer. In this case, when an alignment error occurs between the pattern of the mask 1 and the pattern on the wafer 3 seized in the previous step, a wafer chuck 4 is controlled at the temperature to correct the wafer 3. Further, fluid 7 of the prescribed temperature and the prescribed flow rate is fed onto the wafer 4 by a fluid feeding unit 5 to remove a fluctuating phenomenon of air on the wafer 3 occurred by the temperature control of the chuck 4. The fed fluid 7 is sucked and exhausted by a fluid exhausting unit 6.
Patent JP-S647191-A (JP)
Title: Sheet paper processor
Inventor: YAMAGUCHI HIROYUKI
IPC: B65H1/30
Filed: 1987-06-29
Abstract: PURPOSE: To make it possible to observe the inside of an inserting/ejecting part and to prevent the occurrence of problem in burglar prevention by previously providing two shutter members of a transparent structure and an opaque structure and half independently operating these shutter members corresponding to states or purposes. CONSTITUTION: At the inserting/ejecting part for paper sheets formed at a piling part where stored paper sheets are successively sent out of a storage box, two shutter members 41 and 52 in a structure of shutting the external opening of the inserting/ejecting part from the outside are provided so as to be opened/closed. One shutter member 41 is made to have a transparent structure so as to be able to observe the inside of the piling part and the other shutter member 52 is made to have an opaque structure. The shutter member 52 of an opaque structure can be closed only when the shutter member 42 in transparent structure is closed.
Patent JP-H0325719-A (JP)
Title: Magnetic recording medium
Inventor: ISHIDA TOSHIO
IPC: G11B5/73
Filed: 1989-06-23
Abstract: PURPOSE:To improve the traveling durability over a wide range of temp. and humidity conditions by using a compd. having a perfluoroalkenyl group and specific bonds and a binder contg. a polymer introduced with specific polar groups at a specific ratio in a magnetic layer or on the surface of the magnetic layer. CONSTITUTION:The compd. having the perfluoroalkenyl group and the bond expressed by formula and the binder contg. the polymer into which >=1 kinds of the polar groups selected from an epoxy group, -SO3M, -OSO3M, -PO3M2, -OPO3M2 (M is hydrogen, alkaline metal, ammonium, N hydrocarbon-substd. ammonium) at 1X10<-6> to 1X10<-3> equiv. per 1g polymer are used in the magnetic layer or on the surface of the magnetic layer.
Patent JP-H057791-A (JP)
Title: Kitchen garbage disposal device
Inventor: BABE TOMOKI
IPC: B02C18/00
Filed: 1991-07-03
Abstract: PURPOSE:To obtain a kitchen garbage disposal device capable of crushing kitchen garbage containing fibrous material and maintaining high disposal capacity. CONSTITUTION:A rotary plate 6 for receiving kitchen garbage is provided, then a cylindrical fixed blade 7 is mounted on the rotary plate 6 and an electric motor 12 for rotating the rotary plate 6 is installed. Further, a notched part 9 which communicate with both an inner and an outer peripheral surfaces is formed on the fixed blade 7 and a rotary blade 16 facing the notched part 9 is installed upright on the outer peripheral surface side of the fixed blade 7. The rotary blade 6 rotates by drive action of the motor 12 and kitchen garbage dumped into a kitchen garbage disposal device is received by the rotary plate 6. The kitchen garbage thus received is thrown to the inner peripheral surface of the fixed blade 7 by centrifugal force of the rotary plate 65, passing through the notched part 9. At that time, the garbage is shredded by the rotary blade 16 and, further, is sent out to the outer side of the rotary blade 6 forcibly by centrifugal force of the rotary plate 6. Finally, the shredded kitchen garbage is discharged to an area, outside a kitchen disposal device.
Patent JP-S5950946-A (JP)
Title: Core sand for casting
Inventor: HIRUTA NORIMOTO
IPC: B22C1/16
Filed: 1982-09-16
Abstract: PURPOSE:To provide core sand for a casting having improved surface stability, strength and a collapsing property after casting by using a specific amt. of bentonite and dextrin as a binder in a refractroy inorg. filler, adding water thereto and mixing and adjusting these materials. CONSTITUTION:Core sand for a casting is prepd. by mixing and adjusting a refractory inorg. filler such as silica sand, 5-10wt% bentonite based on the weight of the filler, 2-6% dextrin based on the weight of the filler and water, as well as 0.5-2% starch and 1-3% carbonaceous powder based on the weight of the filler according to need. Such core sand has a good shelf life and does not require the time for calcination and reaction, thus offering a reduction in an initial cost.
Patent JP-H05331341-A (JP)
Title: Acrylic rubber composition for gasket
Inventor: OHATA HIROYUKI
IPC: F16J15/10
Filed: 1992-05-28
Abstract: PURPOSE:To obtain a new acrylic rubber composition which can be molded into a gasket used for an automobile part and having low-temperature resistance and a good balance among properties such as heat resistance, degraded oil resistance, compression set, and compression set in oil. CONSTITUTION:The composition comprises 100 pts.wt. acrylic rubber polymer containing vinylorganosilicon groups and comprising 80-90wt.% butyl acrylate units, 3-10wt.% methoxyethyl acrylate units, 3-10wt.% acrylonitrile units, 0.l-5wt.% (the total being 100wt.%) units of an ethylenically unsaturated monomer containing a vinylorganosilicon group, 10-200 pts.wt. reinforcing filler and l-10 pts.wt. organic peroxide vulcanizer.
Patent JP-H11347448-A (JP)
Title: Discharge electrode for air cleaner
Inventor: OKUDA TERUO
IPC: B03C3/41
Filed: 1998-06-10
Abstract: PROBLEM TO BE SOLVED: To make a dust collecting unit light in weight. SOLUTION: In a discharge electrode formed by combining many needle electrodes 12 with many counter electrodes arranged adjacently to the needle electrodes 12, each of the needle electrodes 12 is constituted of a discharge part 15 forming a discharge electrode and a supporting pot 16 supporting the discharge part, the discharge part is made of stainless steel and the supporting part is made of aluminum or an aluminum alloy.
Patent JP-H05331597-A (JP)
Title: Coil spring with high fatigue strength
Inventor: MURAI TERUYUKI
IPC: F16F1/02
Filed: 1992-05-27
Abstract: PURPOSE:To produce a coil spring excellent in fatigue resistance and settling resistance by subjecting a wire rod having specific composition to patenting, wiredrawing, and quench-and-temper treatment and regulating surface roughness to a specific value. CONSTITUTION:A wire rod having a composition which consists of, by weight ratio, 0.5-0.8% C, 1.2-2.5% Si, 0.4-0.8% Mn, 0.7-1.0& Cr, 0.005-0.030% N, two or three kinds among 0.1-0.6% V, 0.005-0.50% Mo, and 0.05-0.50% W, and the balance Fe with inevitable impurities and where the contents of Al and Ti among the inevitable impurities are regulated to <=0.005% and <=0.005%, respectively, is subjected to patenting, to wiredrawing, to quench-and-temper treatment, and then to spring forming, by which a coil spring having <=Rmax10 surface roughness can be produced. By this method, the coil spring excellent in fatigue resistance can be obtained.
Patent JP-H1111354-A (JP)
Title: Structure of front fender part of automobile
Inventor: MATSUZAWA TOMOYUKI
IPC: B62D25/16
Filed: 1997-06-19
Abstract: PROBLEM TO BE SOLVED: To prevent the noise generated from front tires from entering a space between a front pillar outer and a front fender by providing an approximately closed space which is surrounded by a front fender, a front fender protector, and a box-shaped member. SOLUTION: A front fender protector 7 is mounted on a box-shaped member 10 provided with a front tender 3, a dash floor 9, a hood ridge lower, and an opening part 11 so as to cover an upper part of front tires, and a space 4 between a front pillar lower outer 2 and a front fender 3 is covered thereby. An approximately closed space 13 is surrounded by the box-shaped member 10, the front fender 3 and the front fender protector 7, and a part to cover the approximately closed space 13 constitutes a resonator 14. The noise which transmits the front pillar lower outer 2 from the front tires and enters a cabin can be efficiently reduced.
Patent JP-H05335713-A (JP)
Title: Printed substrate lamination board with fine through-hole with one side closed and conduction plating method of the board
Inventor: SATO FUMITAKA
IPC: H05K3/40
Filed: 1992-05-28
Abstract: PURPOSE:To improve reliability of conductive plating by forming a satisfactory plating thickness even in an inner bottom part of a through-hole without lowering throwing power during plating treatment even if the through-hole of a double-sided or multilayer printed substrate lamination board is fine and a one side closed type. CONSTITUTION:A through-hole 8 of a double-sided or multilayer printed substrate lamination board 1 is formed fine and a one side closed type from a front conductor 2 to an inner surface 5 of a rear conductor 4 or an inner surface of an inner layer conductor through an insulation layer 3. Conductive plating 13 is deposited from the inner surface 5 of the rear conductor 4 of an inner bottom part of the through-hole 8 or the inner surface of the inner layer conductor to form nearly columnar conductive plating 13 to an opening peripheral part 9 of the front conductor 2 through an inside of the through-hole 8.
Patent JP-H0327460-A (JP)
Title: Personal computer system
Inventor: WADA MASAJI
IPC: G06F12/00
Filed: 1989-06-23
Abstract: PURPOSE:To start a system from RAM at high speed when a system is raised by means of an operating system by storing the operating system in the area of RAM to which power supply is backed up. CONSTITUTION:Backup power is supplied to hard RAM 132 from a power circuit 30 when the system terminates. Thus, the operating system (MS-DOS) stored in hard RAM 132 is preserved even if the system stops. Consequently, the system can be executed from the area of hard RAM 132 in RAM 13 at the time of re-raising MS-DOS. Thus, the system is started at high speed compared to a case when the system is raised from a disk memory.
Patent JP-H0918500-A (JP)
Title: Token system bus type lan and method for constituting logical ring therefor
Inventor: KUMAKURA KIKUYA
IPC: H04L12/40
Filed: 1995-06-28
Abstract: PURPOSE: To speed up the reconstitution process of a logical ring and to shorten communication interruption time in a token system bus type LAN. CONSTITUTION: Each transmission controller 10 of the control station and the normal station of a bus type LAN has a two-pair type logical ring constitution means 130 determining a next station passing a token. In the constitution of the logical ring, an invitation frame including an invitation address n is transmitted from the constitution means 130 of the control station and the response is monitored. When the invitation address n of the invitation frame is the present station address/the present station +1, the constitution means 130 of each normal station returns a response frame defining the present station address as a transmission origin.  When the control station receives not only the response frame from a station but also the response frames from two stations, the control station subscribes and sets the normal station of the transmission origin address in a logical ring control table 132. When a collision is detected during the monitoring, the normal station of invitation addresses n and n-1 is subscribed and set.
Patent JP-H0832971-A (JP)
Title: Method and device for communication and recording of digital image for monitoring system
Inventor: ARAYASHIKI AKIFUMI
IPC: H04N19/134
Filed: 1994-07-14
Abstract: PURPOSE:To efficiently perform communication and recording of image data for monitoring. CONSTITUTION:The length of one picture of image data to which interframe predictive encoding is applied is checked by a code length inspector 109, and it is transmitted via a modulator 103, a transmission line 104 and a decoder 105 only when it shows a value over a prescribed value, and the recording on a data memory device 108 and restoration by an information source decoder 106 are performed. In this way, the video of a monitoring camera in a factory or warehouse remains unchanged at night ordinarily, and it changes when certain abnormality occurs. At this time, since the code length of encoded image data of one picture to which the inter-frame predictive encoding is applied is increased, the transmission/recording of the image data can be performed only when the abnormality occurs, which improves efficiency.
Patent JP-H0763821-A (JP)
Title: Test circuit
Inventor: KAWAMURA YUJI
IPC: G01R31/28
Filed: 1993-06-30
Abstract: PURPOSE:To make it possible to reduce the number of test pins by using a part or more of boundary registers as P/S(parallel/serial) converters at the rime of scan tests, and performing the input and output of scan data through the converters. CONSTITUTION:Four registers 16 at the upper right among the boundary scan registers 16 are used as P/S converters 22, and the registers at the lower right can be used as S/P converters 24. The converters 22 shift the test data by one bit per clock pulse at the scan path test and outputs the serial data into an internal scan register 20 of a system logic circuit 12. Meanwhile, the converters 24 shift the output data, which are inputted in serial form from the registers 20, in accordance with the clock output the data in parallel. In this way, the input and the output of the scan data can be performed in parallel from the ordinary input/output pins. It is not necessary to provide scanning-type input/output pins additionally.
Patent JP-S5593567-A (JP)
Title: Simple record player
Inventor: MIURA YASUTAKA
IPC: G11B3/085
Filed: 1978-12-29
Abstract: PURPOSE: To make it possible to perform a good reproducing operation stably by positioning a tone arm and a motor driving switch in a prescribed relation.  
     CONSTITUTION: Tone arm 4 is so provided that the upper face of pickup part 3 may be slided on the lower face of sound propagation material 2 pressed by stylus pressure spring 1, and arm 4 is pressed to the reproducing start point by reset spring 4'. When reproducing stylus 3' is brought into contact with the groove of record 5 and material 3 reaches reproducing end point S', sound propagation material 2 is lifted by cam 6 of the record center, and stylus 3' is reset to start point S, and switch SW is turned off, and the power source of motor M is turned off. In this case, fixed contact SW 1  of SW and movable contact SW 2  of SW are made opposite to each other vertically similarly to the stylus pressure direction; and when arm 4 is reset to start point S, SW 2  descends to break contact to SW 1 . 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H02114052-A (JP)
Title: Locking preventive brake system
Inventor: DEBITSUDO CHIYAARUZU HAASUTO
IPC: B60T8/173
Filed: 1989-06-23
Abstract: PURPOSE: To enable accurate control by improving a filtering system in a device for controlling the slip level of wheels by comparing the actual vehicle speed with the vehicle reference speed obtained by processing a wheel speed signal by the filtering system. CONSTITUTION: A filtering system is provided with a selection network 10 for inputting a plurality of wheel speed information from a normal wheel speed sensor and selecting the speed information from one wheel or a combination of a plurality of wheels, and an error signal is formed by finding the difference between the selected wheel speed signal and the reference speed by a subtracter 12. Next, the error signal is input to a non-linear device 14 and converted into an output not exceeding a specified limit value, and the output is fed to a first integration device 16, and the difference between the integrated output and the reference value is found by a subtracter 18 to form a second error signal. Moreover, the integrated output is fed to a second integration device 20, and the integrated output is fed as a vehicle speed evaluation signal VREF.
Patent JP-H065171-A (JP)
Title: Pressure switch
Inventor: MASAKU MASATOSHI
IPC: H01H35/38
Filed: 1992-06-22
Abstract: PURPOSE:To improve the water proofness of a terminal portion, reliability of electric contact, etc., by fixing a water-proof type connector used at an electric connection part to a stopper and making up an electric contact member separately from a piston operation regulating member. CONSTITUTION:A water-proof connector 32 having electric connection terminal portions 33 of a terminal member 34 at an opening portion is fixed to a stopper 31. Moreover, a pair of contact members 37 which have resilience and are fixed to the end of a terminal member 34 and come into contact with the periphery of a spacer 28 are installed opposed to each other. When the pressure of a hydraulic line increases to more than a set pressure, the hydraulic pressure led in from the pressure lead-in hole of the case 21 installed at the hydraulic line moves a piston 25 resisting the power of a bias spring 30 and makes the conductive portion 26 of the spacer 28 come into contact with the pair of contact members 37. Thereby, an electric current flows to one of the electric connection terminal portions 33, the terminal member 34, one of the contact members 37, the conductive portion 26, the other of the contact members 37, the terminal member 34 and the other of the electric connection terminal portions 33 in that order to electrically turn the switch on.
Patent JP-S646076-A (JP)
Title: Method for applying ceiling material
Inventor: YAMAGUCHI HIROSHI
IPC: F16B11/00
Filed: 1987-06-30
Abstract: PURPOSE:To apply a ceiling material to a ceiling panel, such as an automobile, by forming a remoistened paste layer on an adhesive surface of the ceiling material, bringing the remoistened paste layer into contact with water, remoistening the layer and applying the ceiling material thereto. CONSTITUTION:For example, a remoistened paste layer 4 is formed on a ceiling substance 1 of polyvinyl chloride leather and applied to a ceiling panel 5. In the process, water is sprayed on the remoistened paste layer 4 with a spray gun 6 and the remoistened layer is then applied to the ceiling panel 5.
Patent JP-H11347953-A (JP)
Title: Wafer chamfering grinding wheel
Inventor: KATAYAMA ICHIRO
IPC: B24B9/00
Filed: 1998-06-10
Abstract: PROBLEM TO BE SOLVED: To provide an economical grinding wheel for chamfering a wafer. SOLUTION: This wafer chamfering grinding wheel 10 is configured so that a metal bond whetstone 12 and resin-bond whetstone 14 are installed coaxially, wherein the resin-bond whetstone 14 is fixed by screw 20 to the metal-bond whetstone 12. When the resin-bond whetstone 14 has worn, the screw 20 is set off and the resin-bond whetstone 14 is removed from the metal-bond whetstone 12 to be replaced with a new one, and processing is resumed.