baber/WOPTO huggingface dataset:
Patent JP-H08107401-A (JP)
Title: Digital radio communication equipment
Inventor: MUTO AKINORI
IPC: H04J3/00
Filed: 1994-10-04
Abstract: PURPOSE: To provide a digital radio communication equipment with which the communication efficiency of a time division multiplex system can be considerably improved. CONSTITUTION: Respective communication slots further dividing one frame constituted on a time base into N pieces can be used as slots for both transmission and reception. Therefore, more than two local oscillation circuits 14 and 15 for generating the local oscillate signals of different frequencies are provided at least, and the different local oscillate signals are simultaneously supplied to respective frequency converting circuits 4 and 8 for reception and transmission. Besides, power supply is controlled for simultaneously operating transmission and reception circuits.
Patent JP-S60131482-A (JP)
Title: Image tracking device
Inventor: IMAMURA KAZUO
IPC: H04N7/18
Filed: 1983-12-20
Abstract: PURPOSE:To save memory space by determining the scanning direction of picture element signals in a gate provided in a field or frame memory according to smaller width than the width between the horizontal width and vertical width of a gate. CONSTITUTION:A video signal 3 obtained by an image pickup device 2 is supplied to a binary coding circuit 7 to obtain a binary-coded picture element signal 8, while is stored in the frame memory 9 by one frame. A gate control signal 6 generated by a gate setting circuit 5, on the other hand, is inputted to the frame memory 9 and only picture element signals in the gate specified on the basis of a gate set value 4 are outputted as in-gate picture element signals 10 from the frame memory 9 to an area number giving circuit 11. A gate position signal 12 from the gate setting circuit 5 is inputted to a scanning direction control circuit 13 to output a scanning direction control signal 14 for controlling the scanning direction (horizontal or vertical direction) of said circuit 11.
Patent JP-2000078884-A (JP)
Title: Changeover type reluctance driving device having high power factor
Inventor: WEBSTER PAUL DONALD
IPC: H02P25/08
Filed: 1999-08-26
Abstract: PROBLEM TO BE SOLVED: To take out electric power from a power source with a high power factor by always maintaining a multiphase changeover type reluctance machine in a substantially conducted state in one or more phases by means of a power converter circuit. SOLUTION: Chopping can be made mainly by two methods. In the most simplest method, two switches, for examples, switches 71 and 72 coupled with a phase winding are simultaneously opened. As a result, energy is returned to a DC link from a machine in each 'chop'. This is also known as 'hard chopping'. In a substitutional method, only one of the switches, for example, the switch 71 is opened so that a current may freely circulate or flow through a loop composed of a winding 16, the other switch 72, and a diode 74. This is known as 'free wheel chopping'. In this control mode, no energy is returned to the DC link until each phase cycle ends.
Patent JP-S60133041-A (JP)
Title: Ethylene-vinyl acetate copolymer composition
Inventor: SUZUKI YUUJI
IPC: C08L51/00
Filed: 1983-12-22
Abstract: PURPOSE:To obtain titled composition of improved heat resistance without impairing the characteristics inherent in EVA, by incorporating EVA with a polymer derived from graft polymerization of an EVA-vinyl chloride system while being kept in a swelled state without dissolving the former in the latter. CONSTITUTION:The objective composition can be obtained by incorporating a blend of (A) 100pts.wt. of ethylene-vinyl acetate copolymer (EVA) with a vinyl acetate content 1-50wt% and (B) 100pts.wt. of another EVA with a vinyl acetate content 1-60(pref. 20-60)wt% with (C) 1-100(pref. 10-90)pts.wt. of a polymer derived from suspension graft polymerization of 5-200pts.wt. of vinyl chloride or a monomer mixture consisting mainly of the same in an aqueous medium while being kept in a swelled state without dissolving the same kinds of EVAs mentioned above in said monomer (mixture).
Patent JP-S6396171-A (JP)
Title: Isolation purification of polyisocyanate containing biuret group
Inventor: JIYAN RODAN
IPC: C07C273/18
Filed: 1987-09-28
Abstract: Isolation and purification of polyisocyanates containing a biuret group, more particularly of those prepared from an aliphatic, cycloaliphatic or arylaliphatic diisocyanate and a biuretising agent.   It consists more particularly in treating the crude polyisocyanate containing a biuret group with an inert gas in the liquid or supercritical state. A polyisocyanate containing a biuret group containing a very small quantity of free monomeric diisocyanate is thus obtained.
Patent JP-2000054551-A (JP)
Title: Corrugated sheet
Inventor: HYODO KATSUMORI
IPC: E04C2/20
Filed: 1998-08-11
Abstract: PROBLEM TO BE SOLVED: To provide a corrugated sheet good in decoration and beauty, having crystal feeling in brightness and provided with good daylighting and proper shielding. SOLUTION: A corrugated sheet 1 comprising light transmission resin has a number of transparent line parts 2 formed substantially linearly, and an irregular roughness face part 3 formed between the transparent line parts 2. Preferably, the transparent line part 2 is formed into a cross line pattern mutually crossing in the oblique direction to the corrugated direction of the corrugated sheet, and the flat surface of the transparent line part 2 has a deeper recess than the minute recess part of the irregular roughness face part 3. Good daylighting is given by using the light transmission resin, and proper shielding is given due to light scattering by the irregular roughness face part 3.  Thus, contrast between the transparent line part 2 and the irregular roughness face part 3 is large, and decoration and beauty are improved since an impression being a line in which the transparent line part 2 is crystal-cut is given.
Patent JP-2001066835-A (JP)
Title: Image density correcting method in image forming device
Inventor: NISHIKINO SACHIKO
IPC: G03G15/04
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To reduce a density irregularity in a main scanning direction by detecting the density of an image at each position, calculating the difference of the density and adjusting exposure output in the main scanning direction so that difference of the density may be within a specified tolerance, thereby correcting the density of an image. SOLUTION: A density patch previously stored in a memory in an image forming device main body is printed out. The image printed out is read by the image forming device main body or another scanner (S101). When the image is read by the image forming device main body, the image density at both ends is detected by a density sensor (S102). The detected density of the density patch on one end side in the main scanning direction is defined as Dα and the density of the density patch on the other end side is defined as Dβ, and the density difference of the density patches at both ends is calculated (S103). Whether or not the calculated density difference is within the previously fixed tolerance is judged (S104). When it is out of the tolerance, writing light quantity corresponding to the density difference, that is, exposure output in the main scanning direction is adjusted (S105).
Patent JP-2001066335-A (JP)
Title: Measuring instrument
Inventor: MACHIDA MASANOBU
IPC: G01R23/16
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To provide a measuring instrument which can measure characteristics over a wide band in a short time. SOLUTION: The measuring instrument is equipped with a signal generation part 2 which supplies a wide-band high-frequency measurement signal to an object body to be measured, and a measuring means which measures characteristics of the object body to be measured over wide-band frequencies according to the high-frequency measurement signal inputted through a specific path. The signal generation part 2 generates a high-frequency measurement signal S0 by putting together wide-band signals S1 and S2 which have mutually different main frequency components.
Patent JP-2001068978-A (JP)
Title: Level shifter circuit
Inventor: HARASAWA TEI
IPC: H03K5/02
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To suppress a through-current without the need for increasing the size of transistors(TRs) and to realize high circuit integration without making the circuit configuration complicated. SOLUTION: The level shifter circuit is provided with 1st and 2nd NMOS TRs N1, N2 in pairs whose gates receive complementary input signals whose level is changed between GND and a VDD1 by a 1st inverter INV 1 and whose sources are connected to GND, 1st and 2nd pair PMOS TRs P1, P2 whose sources are connected to a VDD3 and whose gates are in cross connection to drains of the opposed TR, and 3rd and 4th PMOS pair TRs P3, P4 whose gates are connected to a VDD2, whose drains are connected to drains of the 1st and 2nd NMOS TRs and whose sources are connected to the drains of the 1st and 2nd PMOS TRs P1, P2. A relation of VDD3>VDD 2>VDD 1 holds.
Patent JP-S6395491-A (JP)
Inventor: SHIMADA SHIGERU
IPC: G09G5/24
Filed: 1986-10-13
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-H0287627-A (JP)
Title: Semiconductor wafer
Inventor: KATO TAKESHI
IPC: H01L21/304
Filed: 1988-09-26
Abstract: PURPOSE:To eliminate formation of an acute angle at a ground end face even after the rear has been ground by a method wherein, in a semiconductor wafer provided with a double cross-sectional structure by a ground part which has been ground and removed and by a part on it which is used actually, a rounded part is formed in such a way that a mounted is formed at an end part of the part which is used. CONSTITUTION:A semiconductor wafer is used as a transistor for ultrahigh- frequency oscillation use; a semiconductor substrate is used as a collector; in order to obtain a large oscillation gain, it is desirable that a series resistance of the collector is as small as possible; it is required to finish a chip device with a thickness of 250mum. In this case, the semiconductor wafer used for this manufacture is, e.g., 650mum<t> thick; accordingly, the rear is ground by 400mum before a dicing operation in a final process and is finished to be 250mum thick. At an end part, there exists an asymmetric shape as a shape formed by bonding a semiconductor wafer 2, with a thickness of 250mum, which is used and a ground part 3, i.e., a maximum overhang part in a part of the semiconductor wafer 2; an acute angle is not formed at the end part after the ground part 3 has been removed and polished.
Patent JP-H04120788-A (JP)
Title: Semiconductor laser
Inventor: INOGUCHI KAZUHIKO
IPC: H01S5/00
Filed: 1990-09-11
Abstract: PURPOSE:To form an active layer having a narrow width with high reproducibility by providing a double hetero structure multilayer film including a laser oscillation active layer having smaller width than that of a stripelike protrusion, and current constriction means formed on the surface region or the surface of a semiconductor substrate. CONSTITUTION:The sides (in planes {221} and {111}) of a stripelike protrusion 11 and the surfaces in plane (100) of an n-type InP substrate 10 at both sides are all covered with Fe-doped InP layers 14. Thereafter, an Al2O3 stripelike mask 17 is removed by using HF solution to obtain an n-type InP substrate 10 having a current constriction structure. In this case, the layer 14 has a high resistance, and is operated as a function of a semi-insulating current constriction layer. An Si-doped n-type InP thin film 12' and a nondoped GalnAsP thin film 13' are sequentially grown, a trapezoidal sectional shape perpendicular to the direction of a resonator is formed on the protrusion 11, and a multilayer film of a double hetero structure surrounded by a B surface in plane (111), i.e., multilayer films of the B surface in plane (111) grown from both ends of the protrusion 11 on its oblique surfaces are formed on the protrusion 11.
Patent JP-H04120727-A (JP)
Title: Manufacture of semiconductor device
Inventor: SUGANO YUKIYASU
IPC: H01L21/285
Filed: 1990-09-12
Abstract: PURPOSE:To improve electrical characteristics of a semiconductor device by cooling a semiconductor substrate immediately before or after vapor growth so as to prevent the heat generation or wiring discontinuity due to the decrease in area of a wiring layer. CONSTITUTION:An aluminum wiring layer 14 is vapor-deposited on a heated semiconductor substrate 11 by sputtering. The substrate is transferred into a chamber 26 through a hander 21 to coat the wiring layer with an antireflection film of TiN or TiON. Since the inside of the hander 21 is kept at a vacuum, transfer into the chamber 26 is carried out in a short time and the substrate is cooled quickly compared with a normally slow cooling manner. Therefore, the diffusion of grain boundary in the wiring layer is limited.
Patent JP-2001063392-A (JP)
Title: Control device for front-and-rear wheel drive vehicle
Inventor: MORISAWA KUNIO
IPC: B60L50/16
Filed: 1999-08-27
Abstract: PROBLEM TO BE SOLVED: To obtain sufficient driving force for a vehicle by surely preventing the vehicle from slipping. SOLUTION: When front wheels driven by an engine 10 slip, a generator (an energy generating means) 24 driven by the engine 10 generates energy to consume part of output of the engine 10, thus lowering the driving force of the front wheels. At the same time, the energy generated by the generator 24 is supplied to an MG 28 to drive rear wheels. If the front wheels are still going to slip, the driving force of the front wheels is further lowered by a first driving-wheel driving-force reducing means 70, and therefore the slip of the front wheels is surely eliminated to cause the front wheels to grip a road surface, thus providing sufficient driving force for a vehicle.
Patent JP-2000071132-A (JP)
Title: Work holding device and bolt press-fitting equipment using work holding device
Inventor: NAKAO TOMOYASU
IPC: B23P19/06
Filed: 1998-08-27
Abstract: PROBLEM TO BE SOLVED: To provide a bolt press-fitting equipment equipped with a work holding device, capable of easily positioning various types of housings in relation to a bolt press-fitting machine. SOLUTION: In a bolt press-fitting equipment 10 having a work holding device 11 for holding a housing 1 having a bolt insertion hole 6 and a bolt press-fitting machine 12 for forcing a bolt 5 into the bolt insertion hole 6 of the housing 1 held in the work holding device 11, the work holding device 11 is provided with a pallet 13 which is conveyable by a conveyor, and a sub- ring 14 which is to be mounted to the pallet 13. The sub-ring 14 is structured to be easily mounted to and demounted from the pallet 13, and has a positioning part for regulating its relative position to the pallet 13, a work supporting part 35 for putting the housing 1 on it, and a bolt receiving hole 31 at a position through which the bolt 5 temporarily put in the bolt insertion hole 6 of the housing 1 can be inserted.
Patent JP-H0690605-A (JP)
Title: Riding lawn mower
Inventor: ISHIMARU TAKEYUKI
IPC: A01D34/63
Filed: 1992-09-11
Abstract: PURPOSE:To prevent spontaneous falling of a collector by installing an operation lever for operating a hydraulic cylinder for lifting the collector at a place close to an operator seat and further installing two locking mechanisms linked to each other with a wire, etc., on the operation lever and the hydraulic cylinder. CONSTITUTION:An operation lever 34 for operating a hydraulic cylinder for lifting a collector is installed at a place close to an operator seat, and the movement of the operation lever 34 is locked with the first locking device comprising a locking tine 40 and a locking plate 42. The second locking device for preventing spontaneous return of the elongated hydraulic cylinder is further installed. The first locking device and the second locking device are linked to each other with a mechanical linking mechanism such as a wire 56.
Patent JP-H08109006-A (JP)
Title: Deuterium generator
Inventor: NAGAI MASAHIKO
IPC: H01M8/06
Filed: 1994-10-06
Abstract: PURPOSE: To provide a deuterium-manufacturing facility which can produce a large amount of deuterium in high efficiency. CONSTITUTION: Sea water 101 as a starting substance is purified with a multi- flash evaporator 2 to pure water 102, and the pure water is electrolyzed in a solid macromolecular electrolyte water electrolyzer 3 into a hydrogen and deuterium mixed gas 105 and oxygen 106. The mixed gas 105 is separated using a pressure-swing adsorption separator 4 into deuterium 107 and hydrogen 108. The oxygen gas 106 generated from the electrolyzer 3 and the hydrogen 108 separated from the separator 4 are treated with a solid macromolecular electrolyte fuel cell 5 to recover the electric power and heat.
Patent JP-H0666732-A (JP)
Title: Inspecting and finishing method for painting
Inventor: FUJII YASUYUKI
IPC: G01M99/00
Filed: 1992-08-19
Abstract: PURPOSE:To conduct an inspection to finishing of painting in painting step without depending upon a skilled operator. CONSTITUTION:Image data of a painting surface is fetched by a visual sensor 2, imaged by a computer to inspect a defective position. When the defective position is detected, a space coordinates of the position is calculated, and finishing is conducted by a finish robot 3 based on the coordinates in next finishing operation.
Patent JP-H03104437-A (JP)
Title: Digital signal multiplex transmission system
Inventor: ISHII JUNICHI
IPC: H04J3/24
Filed: 1989-09-19
Abstract: PURPOSE:To simplify a control circuit for multiplexing by converting a speed of a data from each terminal equipment, adding an accommodated location identification signal to the data and controlling the system so that the data is sent on a same channel in matching with the speed of a high speed transmission line. CONSTITUTION:Data speed converters 100, 101 apply multi-point sampling to a data from each low speed terminal equipment by a command of a control section 104 to apply high speed conversion. The data subjected to high speed conversion at the data speed converters 100, 101 is sent to a transmission data selection section 103. The transmission data selection section 103 adds respectively an accommodated location identification signal to the data from each terminal equipment and each data added with the accommodated location identification signal is sent to a same channel respectively in matching with the data speed of the terminal equipment. Thus, a high speed transmission data 201 multiplexed from the transmission data selection section 103 is sent to the transmission line.
Patent JP-H07107033-A (JP)
Title: Base station equipment and mobile station equipment for mobile communication
Inventor: DOSONO YOICHI
IPC: H04B7/26
Filed: 1993-09-29
Abstract: PURPOSE:To reduce interference to other mobile stations and the number of communication channels by transmitting signals for letting the mobile station correct transmission power to make a target level received from the mobile station small corresponding to the number of base stations which simultaneously perform communication by the base station. CONSTITUTION:In the base station, a correlation device 12 inversely spreads the transmission radio waves of the mobile station and a reception level measuring circuit 15 measures a reception level and transmits the result to a mobile station transmission power setting circuit 26. The circuit 26 obtains a value to be the target level 30 or 20dB from the table of its own circuit depending on whether the number of the connection destination base station is one or two when a bit error rate is defined as 10<-3> for instance. So as to make the measured level of the circuit 15 be the target level, the circuit 26 obtains correction signals for controlling the mobile station transmission power from the different table and transmits them to a signal multiplex circuit 20. By the correction signals transmitted from the circuit 20 to the mobile station by an encoder, a modulator and a spreading device 21-23, the mobile station controls and corrects the transmission power. Thus, the interference to the other mobile stations is reduced, the number of the communication channels is reduced and a subscriber capacity is increased.
Patent JP-S62103397-A (JP)
Title: Production of steel sheet for can making having excellent adhesiveness of coated film
Inventor: SAITO TAKAO
IPC: C25D11/38
Filed: 1985-10-31
Abstract: PURPOSE:To produce a surface-treated steel sheet for can making having excellent adhesiveness of a coated film by subjecting the surface of the steel sheet to Sn plating then to a chromate treatment with a chromate treatment liquid having a specific compsn. CONSTITUTION:The steel sheet which is a stock for can making is subjected to Sn plating to <=1,500mg/m<2> per side and further the plated surfaces of the Sn plated steel sheet are heated to the melting temp. of Sn or above to melt the Sn plating layer by which an Fe=Sn alloy layer is formed. The steel sheet is then subjected to the chromate treatment. The compsn. of the chromate treatment coating layer is so adjusted that the content Xmg/m<2> of oxide chromium to be dissolved when immersed into a hot alkali and the total chromium content Ymg/m<2> to be measured by fluorescence X-rays, etc. attain X>=10mg/m<2> and 10mg/m<2Y<=30mg/m<2>. The plating layer of <=100mg/m<2> in terms of Ni as underlying plating contg. Ni or Ni and >=1 kinds among Fe, P, Zn, and Cr is formed on the steel sheet prior to the Sn plating treatment or the plating layer is heated to be diffused into the steel sheet for better results.
Patent JP-H08111125-A (JP)
Title: Electric wire/cable
Inventor: YAMAZAKI TAKANORI
IPC: H01B7/02
Filed: 1994-10-06
Abstract: PURPOSE: To provide a new electric wire/cable in which water tree formation is suppressed and which has improved dielectric breakdown strength even if defects such as voids, foreign matter exist inevitably. CONSTITUTION: An insulation layer 3 to be formed on a conductor 1 or a conductor shielding layer 2, 4 is made up of a resin composition consisting of mainly polyethylene with 0.930-0.945g/cm<3> density and 0.5-5.0g/10min MI and produced by polymerization with a single site catalyst, containing also an organic peroxide compound of 1-(2-tert-butylperoxyisopropyl)-4-isopropylbenzene, 1-(2-tert- butylperoxyisopropyl)-3-isopropylbenzene or its mixture, and crosslinked.
Patent JP-H056768-A (JP)
Title: Separator for electrochemical battery
Inventor: MAAKU PII KERUMEN
IPC: H01M50/469
Filed: 1991-06-19
Abstract: PURPOSE: To provide a method to prevent effectively an internal short circuit in a bottom region of a cell container by installing an electrical insulating barrier wall on at least one surface of bottom segments of separator strips. CONSTITUTION: An electrical insulating barrier wall 8 is installed between separators 2 and 4 in a region 6. When these separator strips 2 and 4 are thrust into a cylindrical cavity of a container, walls 10, 12, 14, 16 of the strips 2, 4 are bent at right angles at the region 6 to form a cylindrical structure. This cylindrical structure coincides in shape with the inner surface of a negative electrode 32 which is strongly pushed against an inside wall of the cell container. The region 6 of the strips partly overlapped each other including the barrier wall 8 is placed at the bottom of the cylindrical cavity of the negative electrode 32, contacting the inner bottom of the electrode 32. Thus, negative electrode material of the cell is kept from penetrating through the separators in the bottom region of the cell container; an internal short circuit is thereby effectively prevented.