baber/WOPTO huggingface dataset:
Patent JP-H03225303-A (JP)
Title: Production of optical waveguide of semiconductor
Inventor: HAMAMOTO KIICHI
IPC: G02B6/12
Filed: 1990-01-31
Abstract: PURPOSE:To improve the controllability of etching depth by continuously carrying out etching at an increased exhaust speed and an increased flow rate of a gas and etching at a reduced exhaust speed and a reduced flow rate of the gas in an etching stage at the time of forming a rib part. CONSTITUTION:A first clad layer of Al0.5Ga0.5As, a waveguide layer of GaAs and a second clad layer of Al0.5Ga0.5As are successively grown on a GaAs substrate. A photoresist mask 11 having the shape of a waveguide to be formed is then formed on the resulting GaAs/AlGaAs wafer 10. First dry etching in a relatively high physical sputtering state attained by increasing exhaust speed and the flow rate of a gas and second dry etching in a relatively high reactive state attained by reducing exhaust speed and the flow rate of the gas are continuously carried out with the same gas. The controllability of etching depth can be improved independently of the surface state of the wafer.
Patent JP-H01196960-A (JP)
Title: Color picture processing unit
Inventor: MATSUNAWA MASAHIKO
IPC: H04N1/48
Filed: 1988-01-30
Abstract: PURPOSE:To decrease the deviation of an image forming position in case of using a lens with color aberration by providing an infrared ray cut-filter before a spectrum system and specifying the transmission characteristic. CONSTITUTION:An object 2 is lighted by a light source 110 and an infrared ray cut-filter 100 is arranged in front of the lens 3 constituting the optical system. The filter whose range of 50% of transmittivity is within a wavelength of 600-660nm is used as the transmission characteristic of the filter 100. As a result, the long wavelength area of the light source 110 is attenuated by the filter 100, the color aberration is decreased and the deviation of the relative image forming position with respect to CCDs 5-7 is made slight. Thus, even when the lens 3 having the color aberration is used, the color aberration is corrected substantially.
Patent JP-H10217627-A (JP)
Title: Offset printing original plate
Inventor: TATSUKI SHOJI
IPC: C09D11/30
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To provide an excellent offset printing original plate which has a favorable image quality, and a high printing resistance by specifying the surface smoothness of the image receiving layer. SOLUTION: A solid ink method is a method wherein right before a printing, a solid ink is molten to be used by a thermal energy, and for the component, a hydro-carbon wax is used as a solvent. A preferable melting point of the hydro-carbon wax is 70-150 deg.C. This printing original plate has a hydrophilic image receiving layer (including a layer which becomes hydrophilic after some sort of treatment), provided that a solid ink is used, and the surface smoothness of the hydrophilic image receiving layer is a range of 100sec to 1500sec by the surface smoothness conforming to JIS P 8119. By this method, without applying a special post-treatment after a printing, the image quality is favorable as an offset printing plate, and the printing resistance is excellent as well.
Patent JP-H10223832-A (JP)
Title: Multi-chip module and its manufacture
Inventor: YAMAZAKI MATSUO
IPC: H01L23/538
Filed: 1997-02-04
Abstract: PROBLEM TO BE SOLVED: To eliminate the need of fine adjustment of irregularity in heights between lots in bear chip parts and to load the various kinds of bear chip parts by flattening and working an insulating film, bumps and blocks to be the same heights and forming a first wiring pattern with a metal layer on them. SOLUTION: The bear chip parts 6 constituted of plural semiconductor elements or IC chips having metallic bumps 5 on electrodes 4 loaded on a base substrate 3 where a ground conductor layer 2 is provided, conductive blocks 7 loaded on the base substrate 3, a first insulating film 8-1 covering the bear chip parts 6 and the conductive blocks 7 so that they are buried and the first wiring pattern 9-1 formed on the film are provided. The bumps 5 are higher than the irregularity of the bear chip parts 6, and the first insulating film 8-1, the bumps 5 and the conductive blocks 7 are flattened and worked to the same prescribed heights. The first wiring pattern 9-1 is formed on them, and the bumps 5, the conductive blocks 7 and a part of the first wiring pattern 9-1 are connected.
Patent JP-H03226383-A (JP)
Title: Device for teaching robot for spot welding
Inventor: SUZUKI SHIGERU
IPC: B23K11/11
Filed: 1990-01-31
Abstract: PURPOSE:To easily and accurately teach a spot position and a spot angle of spot welding to a robot by detecting optically an angle of an electrode chip with respect to materials to be welded by using a beam sensor. CONSTITUTION:The robot 1 is operated manually and the tip of the beam sensor 7 is brought close to a master member for the spot position. Beam light is projected on the surface of the master member from a light emitting member 8 provided on the beam sensor 7 and reflected light is received by a light receiving member 9 and converted into an electrical signal which is sent to a detection unit 13. This signal is amplified by an amplifier 15 and an angle for the surface of the master member of a shank 6 is determined by this signal. When a converted angle is 0 - 2 deg., it is determined as correct straightness and a lamp 17 is lit up and a buzzer 18 sounds to inform a teacher 24. The robot 1 stores the spot position and the spot angle by a welding chip to be fitted to a chip holder 4 by switching a teaching button 25 of the teacher 24 ON. This step is repeated until the next spot position.
Patent JP-S59147529-A (JP)
Title: Comparator circuit
Inventor: NIIZAKI SHINYA
IPC: H03K5/08
Filed: 1983-02-14
Abstract: PURPOSE:To attain the comparison with high input impedance in high speed by providing a differential preamplifier where each drain of two FETs is connected to each emitter of two bipolar transistors (TRs) and a load is connected to each collector and giving the two outputs to inputs of the comparator. CONSTITUTION:Since the gain of the bipolar TRs Q3, Q4 in cascode connection with the FETs Q1, Q2 is nearly the unity in the differential preamplifier 1, the gain is decided by the FETs Q1, Q2. Further, since the output static capacitance of the bipolar TRs Q3, Q4 is smaller nearly in the order of one digit than that of the FETs Q1, Q2, the time constant comprising the capacitance in addition to the floating static capacitance at the collector and the load resistor R1 or R2 is small. Moreover, the effect of the feedback static capacitance on the input static capacitance is less, because the resistance value of the TRs Q1, Q2 viewed from the emitters is several ohms - several tens of ohms and it is smaller nearly in the order of one digit than that of the load resistors R1, R2, and thus, the high input impedance is realized without losing the high speed performance.
Patent JP-H11214475-A (JP)
Title: Substrate transporting apparatus and apparatus for measuring pattern position, using the same
Inventor: IWASAKI MASAYA
IPC: G01B21/00
Filed: 1998-01-20
Abstract: PROBLEM TO BE SOLVED: To avoid dimension variation due to the thermal change of a substrate when pattern information (coordinate positions, etc.), are detected on the substrate. SOLUTION: For a substrate transport apparatus a substrate housing unit 30 for housing a substrate, stage 10 mounting the substrate, and transport unit 20 for transporting the substrate housed in the substrate housing unit 30 along specified transport path 21 are provided. A temp. controller 40 for controlling the temp. in the substrate housing unit 30, based on the temp. near the stage 10 is provided to adjust so that the temp. near the stage 10 is equal to that of a gas in the housing unit 30. Hence the substrate transported to the stage 10 is at the same temp. as that near the stage and the dimension variation due to thermal change never occurs.
Patent JP-2000219276-A (JP)
Title: Film for packaging stacked article
Inventor: TANNO KOUTAN
IPC: B65D71/08
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To prevent a bar code from being mistakenly read without degrading the recognizability of an article to be packaged. SOLUTION: In a film 1 for packaging stacked articles in which stacked cans 2 are see-through, a single bar code 5 for the total stacked cans 2 is displayed using a material to transmit the visible beam and absorb the infrared ray. When the stacked cans 2 are packaged by the film 1, an outer circumferential surface of the respective cans 2 can be visually checked without being screened except a part of the bar code 5 while a bar code reader can not read the bar code 3 of each can 2, and only the single bar code 5 of the total cans 2 can be read.
Patent JP-S54114238-A (JP)
Title: Lighting device
Inventor: YOSHIDA MASAAKI
IPC: F21V7/00
Filed: 1978-02-27
Abstract: PURPOSE: To obtain a small and good lighting device by providing stepwise reflecting faces to an optical element which permits building-in of a lighting source.  
     CONSTITUTION: Light source light of a lamp 10 or the like inserted into an optical element 6 reflects on the reflecting faces 6 1  thru 6 6  provided stepwise in the convex arc form portion of the element 6 to become uniform light which then illuminates required parts. On the other hand, the required parts may be strongly illuminated by the illuminating light emitting directly from the lamp 10 in the direction immediate thereunder. Thereby, the small and good lighting device for illuminating the finder or the like of a camera may be provided. The similar results may also be obtained even if the light source light is reflected by the concave faces formed by the arc face without providing the stepwise reflecting faces to the arc face. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H09190591-A (JP)
Title: Radio meter-inspection system
Inventor: OSUGA SHINGO
IPC: G08C17/00
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To improve the reliability of communication and to improve the management and setting of an ID number. SOLUTION: A slave set 10 and a meter 11 are respectively provided with storage devices 14 and 12 for storing the ID number. At the time of receiving ID number setting communication from a meter inspection device, the slave set 10 stores the ID number in its own storage device 14 and executes ID number setting communication to the connected meter 11, and the meter 11 receives this and stores the ID number in its own storage device 12 so as to make the ID numbers of the slave set 10 and the meter 11 the same value.
Patent JP-H09184716-A (JP)
Title: Ultrasonic sensor and dispensing device using it
Inventor: MIZUKAMI KAZUAKI
IPC: G01F23/28
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To provide an ultrasonic sensor for achieving a highly accurate measurement even by a relatively low ultrasonic frequency. SOLUTION: An ultrasonic sensor detects the rising point of a first wave for a transmission wave. Also, for a reception wave, sampling is made with a frequency which is 2n (n: an integer of at least 1), a plurality of regarding peak points P which are regarding as peaks are detected among them, and a waveform reference point where the time axis coordinates of a virtual envelop line for connecting the quasi-peak points P is minimized are detected. Then, by adding a specific offset time to the time of the waveform reference point of the reception wave, the rising time of the first wave of the reception wave is calculated and a lapse time from the rsing point of the first wave of the transmission wave to the rising point of the first wave of the reception wave is calculated. Distance to the measuring object is calculated based on the calculation result.
Patent JP-H10326275-A (JP)
Title: Method and device for morpheme analysis and method and device for japanese morpheme analysis
Inventor: YAMAMOTO MIKIO
IPC: G06F17/27
Filed: 1998-02-03
Abstract: PROBLEM TO BE SOLVED: To perform fast, high precision morpheme analyzing process and to save resources by outputting the most likelihood array of words among all combinations of whether or not a word border is right after each character. SOLUTION: An escape character string generation part 22 generates all escape character strings from a text inputted from an input/output device 10. A chain probability calculation part 24 obtains chain probabilities of all the generated escape character strings. An optimum path search part 26 selects an escape character string, which gives the highest chain probability among the obtained chain probabilities, as an optimum escape character string and outputs an analysis result including the array of word strings corresponding to the optimum escape character string. Thus, the array of optimum word strings is determined by obtaining the chain probabilities of escape characters. Therefore, a morpheme analysis of an unknown word can be performed more precisely than a conventional method using a dictionary.
Patent JP-2000223245-A (JP)
Title: Carbon heating unit and manufacture thereof
Inventor: SUDA YOSHIHISA
IPC: C04B35/52
Filed: 1999-01-29
Abstract: PROBLEM TO BE SOLVED: To enhance secular change characteristics and the heat stability due to repeating current flow by containing a carbon as an electrical conductor and by setting the contents of Fe, Ca, K and Na as impurity elements at specific value or under. SOLUTION: The contents of impurity elements in a heating unit is that Fe is 100 ppm or under, Ca is 100 ppm or under, K is 50 ppm or under and Na is 50 ppm or under. This heating unit is manufactured whereby after the heating unit is fired, the heating unit is mixed with a composition showing a carbon residue yield substantially not zero and a metal or semimetal compound and is fired by a pressure of 1×10-2 Pa at temperature of 1500 deg.C or more to 2200 deg.C or under. Thereby, the impurity elements deteriorating the secular change characteristics and heat stability of the heating unit is removed. A composition to be used is an organic substance showing 5% or more of carbonization yield by being fired in an inert gas atmosphere and a polyvinyl chloride, etc., is named. As the metal or semimetal compound, a boron carbide and a silicon carbide, etc., are used.
Patent JP-H01197280-A (JP)
Title: Sorter
Inventor: TAMIYA YOSHIYUMI
IPC: B65H39/11
Filed: 1988-02-03
Abstract: PURPOSE:To embody a less expensive and high process speed sorter by providing a row of a plurality of shift deflection parts capable of lifting along a sheet carriage means in a vertical direction and making the deflection claws for other than the lowest shift deflection part capable of displacement. CONSTITUTION:Copied sheets fed on a vertical transfer belt 2 at a high speed and continuously are stored in the uppermost bin 1 and then lower bins in turn, with the first shift deflection part 15 with a deflection claw 3 projected like a dotted line via a solenoid 4 lowering in turn on the operation of a stepping motor M2 and a timing belt 24. Upon completion of sheet storage in the bin 1 in charge, the first shift deflection part 15 delivers the following sheets to the second shift deflection part 16 having a fixed deflection claw 3 while the solenoid 4 is turned off and the deflection claw 3 retreated with a spring 17. The second shift deflection part 15 stores sheets in lower bins 1 in turn with the lowering of a motor M3 and a timing belt 25. In the meantime, the first shift deflection part 15 moves up to a home position for standby. According to the aforementioned construction, the sorting of sheets can be done at a high speed.
Patent JP-H09198748-A (JP)
Title: Helical scan system tape recorder
Inventor: SATO ICHITARO
IPC: G11B15/43
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a helical scan system taperecorder capable of prolonging the service life of a head and hardly causing any adverse effect caused by a running effect. SOLUTION: At the time of running a tape, a depth decreasing effect in an inlet part of a rotary drum is large, and a contact pressure between the head and the tape is changed by using the head for a long time, and then a signal level is lowered as compared with a middle part, etc., of the drum (Figure A). Then, the signal level of the inlet part is extracted by a sampling pulse as shown in Figure C, while a signal level of the middle part a sampling pulse as shown in Figure D. A difference between the signal level of the middle part as a reference and the signal level of the inlet part is evaluated so that a decrease of the depth can be detected. Consequently, by controlling back tension based on this difference, the contact pressure between the head and the tape can always be kept constant. Thus, the service life of the head can be prolonged, and since a proper contact pressure is always given to the head, adverse effect caused by the running effect can hardly be caused.
Patent JP-H04261242-A (JP)
Title: Network configuration system
Inventor: KONISHI YOJI
IPC: H04L12/40
Filed: 1991-02-15
Abstract: PURPOSE:To attain the extension and movement of a terminal without system- down by employing a concentrator comprising a balun converting an unbalanced signal into a balanced signal so as to convert a bus type network into a star type network. CONSTITUTION:An unbalanced signal of a control unit 10 is outputted to a coaxial cable 9 and converted into a balanced signal by a balun 20. The resulting signal is fed to a twisted pair line 19 and converted into an unbalanced signal by a balun 21 via an adaptor 18, and cross connectors 16,14 and then inputted to a concentrator 22. Then an unbalanced signal from terminals T1-Tn is converted into a balanced signal respectively by baluns B1-Bn and given to a twisted pair line 11 and converted into an unbalanced signal by a concentrator 22 and outputted. This signal is converted into a balanced signal by a balun 21 and converted into an unbalanced signal by the balun 20 via the cross connectors 14,16 and the adaptor 18 and the result is inputted to the control unit 10.
Patent JP-H07252339-A (JP)
Title: Production of highly reactive modified phenolic resin, molding powder containing this resin, material for electronic and electrical component and semiconductor sealing material
Inventor: TSUMURA MASAHIRO
IPC: C08L63/00
Filed: 1995-01-18
Abstract: PURPOSE:To produce a highly reactive modified phenolic resin having low melt viscosity and improved in moldability, electrical insulation properties, heat resistance, humidity resistance, corrosion resistance, dimensional stability and strengths by lowering the molecular weight of a specified modified phenolic resin in the presence of an acid catalyst by using a phenol. CONSTITUTION:A mixture comprising 1mol of a petroleum-derived heavy oil or pitch having an aromatic hydrocarbon fraction of 0.40-0.95 and an aromatic ring hydrogen content of 20-80% and 1-15mol (in terms of the weight of formaldehyde) of a formaldehyde polymer is heated under agitation in the presence of an acid catalyst, 0.35mol of a phenol is added to the reaction mixture, and the entire reaction mixture is polycondensed at 50-160 deg.C for 0.5-10hr to obtain a crude modified phenolic resin. This resin is treated with a 10C or lower aliphatic hydrocarbon solvent or a 10C or lower alicyclic hydrocarbon solvent and to thereby obtain a modified phenolic resin. 100 pts.wt. this resin is mixed with at least 10 pts.wt. phenol, and the resultant mixture is reacted at 50-120 deg.C for 15min to 3.0hr in the presence of an acid catalyst to lower its molecular weight.
Patent JP-S59147687-A (JP)
Title: Extractant consisting of citric acid and zeolite substituted by aluminum
Inventor: NAGASHIMA KEIJI
IPC: C02F1/26
Filed: 1983-02-14
Abstract: PURPOSE:To provide a titled extractant which diminishes remaining sludge in a sludge treatment by microorganisms and improves the dehydration property of anaerobic sludge and consists of citric acid, H2O2, water in a specified ratio. CONSTITUTION:A solution consisting of, by weight, 0.5-65% citric acid, 0.01- 20% H2O2 and the balance water is added to a mixture consisting of 0.05-10% Al, 1-25% zeolite, 0.1-5% zeolite powder, 0.01-1% glycol, 0.01-0.1% copper sulfate to produce a 100% composition. By heating the composition, an extractant consisting of citric acid and zeolite substituted by Al in which active ions are extracted is obtd. The sludge remaining after cleaning treatment of sewage by microorganisms is further activated and cleaning actions such as deodoration, diminishing of org. matters, adsorption of inorg. matters or the like are carried out to diminish the remaining sludge. The above-mentioned aqueous solution is used only in the cases of diminishing the viscosity of the anaerobic sludge at the first stage and of improving the separation of water in a precipitation tank by increasing separation and dehydration properties and improving the dehydration action.
Patent JP-S63192838-A (JP)
Title: Aluminum-alloy powder compact excellent in creep resisting characteristic
Inventor: OMI FUMIHIKO
IPC: C22C21/02
Filed: 1987-02-04
Abstract: PURPOSE:To obtain the titled Al-alloy powder compact having strength at high temp., by providing a compact of the rapidly solidified powder of an Al alloy containing respectively prescribed amounts of Si, one or more elements among Fe, Mn, and Ni,and further one or more elements among Mo, Cr, and Zr. CONSTITUTION:The titled Al-alloy powder compact is formed of the rapidly solidified powder of an Al alloy consisting of, by weight ratio, 10-30% Si, 4-8% of one or more elements among Fe, Mn, and Ni, and the balance Al and further containing, if necessary, 0.5-5% Cu and/or 0.2-3% Mg. This Al- alloy powder compact maintains the strength of the conventional Al-alloy powder compact and has improved creep characteristics in the application to sliding member to be used under high-temp. and heavy-load conditions. Accordingly, the design stress can be heightened, and lightening weight to a greater extent and following property improvement can be contrived.
Patent JP-S53108372-A (JP)
Title: Substrate for wireless bonding
Inventor: SHIBATA SUSUMU
IPC: H01L21/60
Filed: 1977-03-04
Abstract: PURPOSE: To simplify the checking of electrical connections for the semiconductor element and conductive pattern, by providing a plural number of lead wires with each terminal of the semiconductor element, in the wiring conductive pattern for bonding. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H05212326-A (JP)
Title: Painting apparatus
Inventor: NAKAMURA KIMINORI
IPC: B05B12/12
Filed: 1992-02-07
Abstract: PURPOSE:To perform lap-painting under the optimum condition by applying painting to a work according to a wet-on-wet system by a second automatic painting machine after the work is painted by a first automatic painting machine and making the interval between two automatic painting machines changeable so as to satisfy specific relation. CONSTITUTION:In order to apply intermediate coating or topcoating to a car body B along the feed direction of a feed conveyor C, first automatic painting machines 1a, 1b are provided so as to be movable in the feed direction of the conveyor C and a second automatic painting machine 1c is provided. A temp. sensor 8 for measuring the temp. in a painting booth is provided and speed measuring devices 9 for measuring the speed of the conveyor are provided to the motors 7a, 7b of the conveyor C. A flash time T (min) is calculated from the temp. in the booth, the speed of the conveyor and the volatilization amount of a solvent by a microcomputer 10 and the interval D (m) between the painting machines 1b, 1c can be adjusted so as to become the product TXV of the flash time T and the conveyor speed V.