baber/WOPTO huggingface dataset:
Patent JP-2000117805-A (JP)
Title: Manufacture of thermoplastic resin foam
Inventor: KAWABATA YASUSHI
IPC: C08J9/06
Filed: 1998-10-20
Abstract: PROBLEM TO BE SOLVED: To provide excellent dimensional stability and mechanical strength and to enhance productivity by kneading a foamable resin composition consisting of a liquid crystal resin, a thermoplastic resin having a melting temperature not higher than a transition point of the liquid crystal resin and a foaming agent at a temperature not lower than the transition temperature of the liquid crystal resin, shaping the composition while foaming it, and continuously extrusion molding the composition. SOLUTION: A foamable resin composition consisting of a liquid crystal resin, a thermoplastic resin having a melting temperature not higher than a transition temperature of the liquid crystal resin and a foaming agent is kneaded at a temperature not lower than the transition temperature of the liquid crystal resin, then shaped while foaming the composition in a cooling mold and a foam is then continuously extrusion molded. As the agent, a thermal decomposition type foaming agent is preferably used. As the thermoplastic resin, an olefin resin, a polystyrene or their copolymer having suitable compatibility with the liquid crystal resin is preferably used, and its melt index is preferably 0.1 to 20 g/10 min.  As the liquid crystal resin, a thermoplastic liquid crystal polyester or a thermoplastic polyesteramide is preferably used. 0.5 to 50 pts.wt. is preferable to 100 pts.wt. of the thermoplastic resin.
Patent JP-H07154179-A (JP)
Title: Manufacture of surface acoustic wave element
Inventor: YAMANO MASARU
IPC: H03H3/10
Filed: 1993-11-29
Abstract: PURPOSE:To easily and surely adjust the resonance frequency by immersing a surface acoustic wave element after electrode forming to a neutral aqua group liquid. CONSTITUTION:A positive resist layer 2 is coated to the entire side of a lithium tetraborate (LBO) single crystal substrate 1. Then a mask 3 with a negative electrode pattern corresponding to plural elements formed thereto is closely fitted to the substrate 1 and is exposed to ultraviolet rays 4. Then an Al is vapor-depositted to the entire face of the substrate 1 on which the pattern 2b is formed to coat a metallic layer being an electrode layer. Then an electrode pattern 5a is formed by the lift-off method. The substrate is cut off a dotted lines by a dicing device to separate each discrete element and the resonance characteristic of each element is measured and the elements are sorted to plural groups. Then the frequency is adjusted.
Patent JP-H06124937-A (JP)
Title: Processing of semiconductor substrate, formation of diffraction grating and manufacture of optical semiconductor device
Inventor: TAKAHASHI SHOGO
IPC: H01S5/00
Filed: 1992-10-09
Abstract: PURPOSE:To collectively form etching grooves in the whole surface of a semiconductor substrate in a short time by forming a Zn diffusion region having a specific carrier concentration on the part where etching grooves of a semiconductor substrate or a semiconductor crystal layer are to be formed and later performing wet etching of the semiconductor substrate or the whole surface of the semiconductor crystal layer. CONSTITUTION:After the patterning formation of an SiN film 5 on a GaAs substrate in a striped shape, a diffusion source film 6 consisting of a mixed film of ZnO and SiO2 and an SiO2 protective film is formed on the whole surface of the substrate 1 for being subjected to heat treatment in an N2 atmosphere. In this way, a Zn diffusion region 7 having a carrier concentration higher than 1 =X 10<19>/cm<3> is formed. Next after removing the SiN film 5 and the diffusion source film 6, wet etching is performed by using a mixed etchant of HF, H2O2. and H2O. Thereby, the etching grooves 4 having the smooth etched surfaces corresponding to the Zn diffusion layer are formed.
Patent JP-H07156047-A (JP)
Title: Grinder
Inventor: IMAI TOMOYASU
IPC: B24B5/04
Filed: 1993-11-29
Abstract: PURPOSE:To reduce an amount which has to be ground by the straight part of a grinding wheel and minimize a heat generation amount by connecting plural steps tapered part for rough grinding to the straight part for finish grinding in parallel to a work rotational axis, in the case of the peripheral surface of the grinding wheel for grinding a work. CONSTITUTION:Rough grinding on a work periphery is carried out by the front step tapered part 19B and the rear step tapered part 19A of a grinding wheel 16 and then finish grinding on the work periphery is carried out by a straight part 18. In this case, as the grinding wheel 16 is shifted from the position shown by two dots chain line to the position shown by a full line when the work is rotated by one turn, a place ground by the tapered parts 19A, 19B in the previous one turn has to be ground by the straight part 18 of a dull grinding wheel 16, but the amount of an oblique line part H which has to be ground by the straight part 18 is extremely reduced by the existence of the rear step tapered part 19A with a small taper angle thus a heat generation amount is reduced.
Patent JP-H05110539-A (JP)
Title: Digital transmission system
Inventor: ARAYA MASANOBU
IPC: H04L1/00
Filed: 1991-10-17
Abstract: PURPOSE:To improve the utilization efficiency of a circuit by varying an encoding rate of an error correction code in accordance with a circuit state. CONSTITUTION:A transmitting side is provided with an encoding rate variable encoder which can vary an encoding rate, and a variable rate error correcting encoder 2 for performing a necessary thinning-out processing with regard to an output from the encoding rate variable encoder, varying the encoding rate and adjusting the error correcting capacity. Also, a receiving side is provided with a decoder 3 for decoding an encoded signal sent from the transmitting side, and a circuit state detecting part 4 for detecting a circuit state, and by feeding back the circuit state detected by the circuit state detecting part 4 to the transmitting side, the transmitting side varies the encoding rate by the encoding rate variable encoder and the encoding rate for correcting an error by the variable rate error correcting encoder 2 in accordance with the circuit state. In such a way, high reliability, a high throughput and a small delay time can be realized simultaneously, and the utilization efficiency of the circuit can be improved.
Patent JP-H09181540-A (JP)
Title: Bi-directional current source with high symmetry
Inventor: FUIRITSUPU GIRARUDO
IPC: H03F3/345
Filed: 1996-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a multi-directional current source generating source current and sink current which is exactly equal all over the output voltage ranges. SOLUTION: A bi-directional current source 18 with high symmetry which is biased between first and second power source voltage (Vdd, Gnd) by MOSFET technique is provided with a new circuit 19 and a general switching circuit 12. The switching circuit 12 is composed of two parallel complementary FET device pairs, and a unit gain operational amplifier is connected between the common nodes. The new circuit 10 has the circuit (OP 2, R) in which the operational amplifier is made a base, the positive input terminal is connected with an intermediate node 20, the negative input terminal is connected with the one 15 of the common nodes, an output is connected with node 21 formed by the gate of a second mirror device T 12 and the gate of an output device T 5, and a potential difference is prevented from generating between the nodes 14, 15 and 20.
Patent JP-H02143708-A (JP)
Title: Channel return device
Inventor: SUZUKI JUNICHI
IPC: H04N5/44
Filed: 1988-11-25
Abstract: PURPOSE:To concentrate the viewing and hearing to an unpopular program by receiving a main channel program again even if plural unpopular programs on other channels are viewed, and automating the changeover to the main channel having been implemented by the user operation. CONSTITUTION:An input device 13 is provided with a channel key and a return key, an instruction decoder 14, a channel return function processing unit 15, a storage device 16, a tuner controller 17, a counter and counter processing unit 18, a display data processing unit 19 and the block surrounded by broken lines is subject to circuit integration. In the return node, even when plural unpopular programs on other channels are viewed by using the channel key or the like, when the return mode is finished, the main channel program is received again and the return to the normal mode is present by the return key. Thus, the attention to the viewing of the unpopular program on other channel is concentrated.
Patent JP-2000134840-A (JP)
Title: Manufacture of permanent magnet rotor and rotor obtained thereby
Inventor: OFFRINGA LODEWIJK JACOB JAN
IPC: H02K15/02
Filed: 1999-10-20
Abstract: PROBLEM TO BE SOLVED: To avoid the slack of a magnet at a high rotation speed and damage to a rotor by fitting a screen that is made of a highly conductive material to a rotor magnet galvanically. SOLUTION: A ring 16 made of an electrically conductive material such as copper and aluminum is provided at each end part of a sleeve 14. Then, a screen 18 made of an electrically, highly conductive material is fitted to the outer surface of a magnet 4 and a ring 16, namely a surface in an opposite direction from the sleeve, galvanically. Then, a paint containing a silver particle is applied to the surface, thus enabling the surface of the rotor for forming the screen 18 to be conductive. All non-galvanized surfaces are covered with the layer of an insulation material. Then, a cylindrical support sleeve 20 made of a polymer material or the like being reinforced by fiber is mounted onto the screen 18, thus avoiding the slack of the magnet and the damage to the rotor especially at a high rotation speed.
Patent JP-H06148339-A (JP)
Title: Holding device for neutral position of swing lever
Inventor: HATAMACHI TADASHI
IPC: G07D3/00
Filed: 1992-11-09
Abstract: PURPOSE:To accurately maintain the neutral position of a swing lever by a method wherein the protrusion of the swing lever is constituted so as to be pressed by, and sandwiched between and held by, both end parts of one torsion coil spring in the neutral position of the swing lever and the difference in a pressure force is eliminated when the protrusion is pressed by, sandwiched between and held by, both end parts. CONSTITUTION:In the state of a neutral position, both ends of a protrusion 12b at a swing lever 12 are pressed by, sandwiched between and held by, both end parts of one torsion coil spring 16. Thereby, the neutral position is held. At this time, no difference is caused in the pressure force of the torsion coil spring 16 which presses, sandiwches and holds, both ends of the protrusion 12b. As a result, the neutral position of the swing lever 12 is maintained accurately, and the neutral position of the swing lever 12 is not changed due to an irregularity in the spring constant of the torsion coil spring 16. In addition, the number of coil springs is reduced as compared with a case where a plurality of coil springs are used, and the title device can be manufactured easily.
Patent JP-2000117842-A (JP)
Title: Manufacture of porous material
Inventor: SUZUKI MASAAKI
IPC: C08J9/26
Filed: 1998-10-20
Abstract: PROBLEM TO BE SOLVED: To manufacture a porous material having high degree of freedoms of a shape, an excellent heat insulation and a low density by forming a composite gel obtained by filling a thermally decomposable polymer having not higher thermally decomposing temperature than a thermal deformation temperature of a mesh skeletal material in air gaps of a mesh structure for constituting the skeletal material. SOLUTION: First, a composite gel obtained by filling a thermally decomposable polymer 2 having not higher thermally decomposing temperature than a thermal deformation temperature of a mesh skeletal material in air gaps of a mesh structure for constituting the skeletal material is formed. Then, the gel is heat treated at a thermally decomposing temperature or above of the polymer 2, only the polymer 2 is gradually decomposed, and removed while holding a mesh structure in the gel so that pores 3 are formed. That is, the porous material in which the pores exist in the air gaps of the structure is finally obtained. Since the polymer 2 exists in the gaps of the structure of the gel, a shrinkage of the porous material can be suppressed, and the porous material having infinitesimal pore size and low density can be obtained.
Patent JP-H03158934-A (JP)
Title: Starting system for multi-processor system
Inventor: TANAKA MICHIYO
IPC: G06F15/16
Filed: 1989-11-17
Abstract: PURPOSE:To execute the processing even in the case a fault is generated in the midst of the starting processing by constituting the system so that a processor of a stand-by system drives the own processor, in the case information for showing a load completion of a program is not written in a shared memory even if a prescribed time elapses after the starting processing is started. CONSTITUTION:When a starting processing is started, a processor 2 of a stand-by system refers to a shared memory 3. Subsequently, in the case informa tion for showing a load completion of a program is not written in a shared memory 3 even if a prescribed time elapses after the starting processing is started, the right of control of a program store medium 5 is obtained by issuing a request to a program store medium switching means 7, and thereafter, loading of the program is executed, and the loaded program is actuated. In such a way, even in the case a fault is generated in a processor of an existing system on the way of the raising processor, switching of the existing system and the stand-by system can be executed.
Patent JP-H11135172-A (JP)
Title: Elastomer connector for connecting ic card
Inventor: NISHIZAWA KOJI
IPC: H01R35/00
Filed: 1997-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a connector which can be managed with a comparatively small compression load at pressure contacting and which will remain in tight attachment to the connecting electrode of an IC card, even when IC card is removed and will not slip off from a connector holder. SOLUTION: Insulating elastomer 3 and conductive elastomer 4 are laminated alternately on the two surfaces of an insulative elastomer sheet or film 2 in such a way that their surfaces stretch parallel to one another, and thus a rod- shaped connector member is formed which is installed with its laminate surface positioned vertically so that an elastomer connector 1 for connecting an IC card is accomplished, wherein the conductive elastomer 4 is structured so that 5-20 pts.wt. carbon fibers 5 are contained, with respect to 100 pts.wt. crude material for conductive eleastomer is substantially oriented vertically relative to a connecting electrode surface 6 of the elastomer connector 1 and protrudes 10-30 μm from the connecting electrode surface of the connector 1.
Patent JP-H03159112-A (JP)
Title: Manufacture of semiconductor device
Inventor: SHIRAI HISATSUGU
IPC: H01L21/027
Filed: 1989-11-16
Abstract: PURPOSE:To obtain a method for forming alignment marks which can ensure detection of alignment marks by a method wherein a silicon nitride film in a region where a film thickness is made to be thin either in an alignment mark forming region or an element forming region is etched and a silicon nitride film of required thickness is formed. CONSTITUTION:A silicon nitride film 2 is formed on a surface of a semiconductor substrate 1, a resist film 4 is formed on a surface of the silicon nitride film 2, and the resist film 4 in a region where a film thickness is made thin either an alignment mark forming region or an element forming region is patterned to be removed. Then the silicon nitride film 2 in the region with the resist film 4 removed is etched and a silicon nitride film 3 of a required thickness is formed on the region where the resist film 4 has been removed. Then after the resist film 4 for example is removed, a resist film 5 is formed on an entire face, the respective regions are patterned to form an alignment mark 2a in the alignment mark forming region and an element separating window 3a on the element forming region, the resist film 5 is removed.
Patent JP-H09118414-A (JP)
Title: Conveyor and solid formulation printer provided with the conveyor
Inventor: YAMAMOTO TAIZO
IPC: B65G17/42
Filed: 1995-10-24
Abstract: PROBLEM TO BE SOLVED: To improve workability of attaching and detaching slats on a conveyor which includes a pair of endless chains and numbers of slats provided between the endless chains and conveys articles taken on the slats by moving the struts by means of driving the endless chains in circulation. SOLUTION: A salt 4 is composed of a slat base 5 laid and fixed between a pair of endless chains and a slat plate 6 fitted on the slat base 5 in a detachable manner and holding means 14, 14 for holding the slat plate 6 on the slat base 5 in a detachable manner, by which slat plate 6 is made detachable from the slat base 5. Thus labor and time for replacing slats can be sharply reduced.
Patent JP-H10143983-A (JP)
Title: Method and device for discriminating magnetic medium
Inventor: TERAMURA KOJI
IPC: G11B5/02
Filed: 1996-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a device discriminating a medium magnetic stored without contacting by using a magneto-optical effect without affected by vibration from a transfer means. SOLUTION: The medium 10 having a magnetic stored area is transferred using a transfer device. When the area pattern of the magnetic medium 10 is detected on the way of a transfer path, a magnetic medium discrimination device is constituted of an incident optical system 52 making incident light incident on the medium and a detection optical system 54 detecting an intensity change of light based on the magneto-optical effect e.g. a magnetic Kerr effect or a Faraday effect caused on the magnetic medium by the incident light without contacting.
Patent JP-H05136265-A (JP)
Title: Lsi arrangement treatment
Inventor: MIZUMAKI TOSHIHIRO
IPC: G06F17/50
Filed: 1991-11-14
Abstract: PURPOSE:To reduce wirings which pass through blocks difficult for wiring to pass through by making longer a virtual wiring length of the nets passing the wire-passing difficulty blocks and not selecting the position which brings about the passing nets as the arrangement position of blocks. CONSTITUTION:Blocks 101 to 103 and a wire-passing difficulty block 301 are arranged and the blocks 101 to 104 are connected with nets 201. A block 104 has arrangement candidate positions 401, 402 is a state that the block 104 is not arranged. For example, in the case of arranging the block 104, a virtual wiring length of the net 201 when the block 104 is arranged in the arrangement candidate positions 401, 402 is obtained in order to get the values 100, 1025, respectively. When the block 104 is arranged in the arrangement candidate position 401, the net 201 passes the wire-passing difficulty block 301. Therefore, the virtual wiring length becomes 230 by adding a semi-periodical length 130 of the wire-passing difficulty block 301. Therefore, the virtual wiring length of the arrangement candidate position 402 becomes short and the block 104 is arranged in the position 402.
Patent JP-H04171790-A (JP)
Title: Part mounting board
Inventor: SUZUKI YUKIHARU
IPC: H05K3/30
Filed: 1990-11-05
Abstract: PURPOSE:To disperse and reduce share stress put on a solder joint by providing an insulating layer thicker than a land between a board and a body of leadless parts where an electrode is reflow-soldered on the land of the board. CONSTITUTION:An insulating layer 21 sufficiently thicker than a land 13 is formed on a surface of a printed wiring board 11 through printing excepting a conductor pattern such as the land 13. Then, an electrode 14 of electroless parts 12 is connected to the land 13 through a solder joint 15 formed through reflow-soldering. Hereby, the insulating layer 21a is adapted to serve as a spacer, whereby there can be dispersed shear stress repeatedly produced owing to a periodic temperature change based upon the difference between thermal expansion coefficients of the board 11 and the leadless parts 12.
Patent JP-S63150683-A (JP)
Title: Ultrasonic transmitting and receiving matching box
Inventor: NAKAGAWA YUKIO
IPC: G01S15/89
Filed: 1986-12-16
Abstract: PURPOSE:To obtain a diagnostic image of superior picture quality by bringing a main delay means which gives a necessary delay time at the time of reception under the switching control of a transmission/reception switching control circuit. CONSTITUTION:The main delay means 70 which gives the delay time based on a received signal corresponding to the distance difference between a focus and an exciting ultrasonic wave transducer 15 and a prepositioned delay means 60 which controls the delay time of the main delay means 70 finely according to the difference time between a transmission and a reception delay time are brought under the switching control of the transmission/reception switching control circuit 80. The main delay means 70 is connected to a receiving circuit side at specific timing at the time of reception and the series body of the main delay means 70 and prepositioned delay means 60 is switched and connected to a transmitting circuit side at the time of transmission.
Patent JP-H05134845-A (JP)
Title: Data converter
Inventor: ITO SHINKICHI
IPC: G06F5/00
Filed: 1991-11-15
Abstract: PURPOSE:To reduce processings in which a CPU participates by calculating the address of converted data by regarding the converted data, which are outputted from a conversion memory based on the access of an access means, as the output data from a virtual memory. CONSTITUTION:This device is equipped with the virtual memory to store the address of data to be converted in a data memory 21 as a relative address, and an address converter 53 to convert the address to the virtual memory to the address of the data memory 21 concerning the correspondent data to be converted based on the access to the converted data and to perform access. A multiplexer(MUX) 54 is provided to access the data to be converted outputted from the data memory 21 based on the address converted by this address converter 53 while converting into the address of the conversion memory 22 where the converted data to be existent. Then, since the converted data outputted from the conversion memory 22 based on the access of the MUX 54 are regarded as the output data from the virtual memory, the burden of a CPU 1 is reduced.
Patent JP-S62156083-A (JP)
Title: Production of steel tube
Inventor: HOSODA TAKUO
IPC: B23K11/24
Filed: 1985-12-27
Abstract: PURPOSE:To stably manufacture the electric welded tube having no defect on weld zone by controlling the welding heat input quantity by the strip steel thickness just close to the this side of the welding point and the tube making speed in welding the butt end part of the welding steel strip in case of manufacturing a resistance welded steel tube. CONSTITUTION:The strip steel W as for the material for manufacturing electric welded steel tube is bent from the plate shape by the fin pass roll R with plural steps and made in the state of leaving a slight gap C on the butt both end parts of the strip steel W at the time when coming out of the final fin pass roll Re. The gap C is subjected to an electrical welding by abutting completely by a squeezing roll S via a seam guide roll Rs thereafter. In this case, the variation in the strip steel plate thickness in bending the strip steel is caused, so the strip steel plate thickness t is measured at the closest position to the welding point, the necessary electric power q for obtaining the fixed welding heat input quantity Q in the prescribed quantity is found by substituting it into Q=q/v.t (Q = welding heat input, q = output electric power) together with the pipe making speed V measured separately and by performing the welding of the plate thickness measuring part with this electric power the resistance welded steel tube having no welding defect is manufactured.