baber/WOPTO huggingface dataset:
Patent JP-S57109618-A (JP)
Title: Both faces fresnel lens and its manufacture
Inventor: TAKAHASHI TATSUMI
IPC: B29C39/00
Filed: 1980-12-27
Abstract: PURPOSE:To obtain said lens of which both faces have symmetrical shape and the corresponding grooves of the concentric rings coincide each other, by forming a mother by an original plate with plating material, making two pieces of the mold by the mother, positioning them and heat and pressure molding lens material between the both molds. CONSTITUTION:The mother 26 is formed with plating material by the orginal plate 21 on which the part 20 corresponding to the Fresnel lens face is shaped and two pieces of the mold 12, 14 are made with plating material by the mother 26 according to the same procedure. Lens material of thermoplastic resin is placed between the molds 12, 14 and is heat and pressure molded. Molds 12, 14 are provided with the positioning holes 30, guided on the guide rail of the molder, and the both molds 12, 14 are positioned accurately and mated with good precision. The both faces Fresnel lens 23 of high precision of which both faces have symmetrical shape and the grooves 31 of the concentric rings coincide at both faces is obtained.
Patent JP-2001013199-A (JP)
Title: Measuring method for characteristic of semiconductor laser having plural luminous points
Inventor: SUZUKI YASUO
IPC: H01S5/022
Filed: 1999-06-30
Abstract: PROBLEM TO BE SOLVED: To provide a measuring method capable of measuring a characteristic of each luminous point of a semiconductor laser having plural luminous points in a state similar to an actual use state. SOLUTION: In this measuring method for a characteristic of a semiconductor having plural luminous points, a laser characteristic of a luminous point whose characteristic is measured is measured by driving a laser of the luminous point whose characteristic is measured with a current IOPLD1 above a threshold current value Ith, with driving a laser of at least one luminous point among the luminous points except the luminous point whose characteristic is measured with a current IOPLD2 less than the threshold current value Ith.
Patent JP-S5974554-A (JP)
Title: Photosensitive material
Inventor: CHINO NAOYOSHI
IPC: G03C1/85
Filed: 1982-10-21
Abstract: PURPOSE:To obtain a photosensitive material having superior antistatic property, by incorporating a nonionic surfactant contg. a polyoxyethylene group and a specified fluorine-contg. anionic surfactant in a hydrophilic colloidal layer. CONSTITUTION:In one or more hydrophilic colloidal layers formed on a support, such as polyethylene terephthalate film, there are incorporated with (A) a nonionic surfactant having a polyoxyethylene group such as compds. of formula I , II; and (B) a fluorine-contg. anionic surfactant having general formula III in which Rf is 2-10C perfectly or partially fluorinated alkyl; A is CO or SO2; R' is H or lower alkyl; B is carboxylic or sulfonic group or their salt; x and y are each 0 or 1; z is 0 or a positive integer, such as compds. of formulae IV and V. As a result, a potosensitive material having superior antistatic property is obtained.
Patent JP-H0472785-A (JP)
Title: Semiconductor laser device and manufacture thereof
Inventor: ANAYAMA CHIKASHI
IPC: H01S5/00
Filed: 1990-07-13
Abstract: PURPOSE:To obtain a semiconductor laser device which is excellent in current constriction and low threshold current through manufacturing processes smaller in number by a method wherein a current block layer discontinuously formed on a semiconductor substrate, a lower clad layer formed on the current block layer and the side face of the step of the semiconductor substrate, and an upper clad layer deposited on the active layer are provided. CONSTITUTION:A buffer layer 12 is formed on a substrate 10 provided with a step, and a current blocking layer 14 is formed on the buffer layer 12, the buffer layer 12 and the current block layer 14 are discontinuously laminated as divided into two pieces at the step respectively. A double hetero-structure composed of a clad layer 18, an active layer 18, and a clad layer 20 is formed thereon. Furthermore, a contact layer 22 is formed thereon, an electrode layer 24 serving as an N-side electrode is formed on the contact layer 22, and an electrode layer 26 serving as a P-side electrode is formed on the underside of a substrate 10. In this semiconductor laser device, as the current block layer 14 whose conductivity type is opposite to that of the substrate 10 is interrupted at the side of the step to constitute an interrupted part, the buffer layer 12 is brought into contact with the clad layer 16 at the side face of the step concerned, in result an excellent current constriction structure where a current is made to flow through only the contact area concerned can be realized.
Patent JP-S6246634-A (JP)
Title: Manufacture of tire bead
Inventor: NAKANO TATSUZO
IPC: B29D30/48
Filed: 1985-08-26
Abstract: PURPOSE:To improve the pasting accuracy of a bead filler by a method wherein the bead filler is cylindrically wound round the outer peripheral surface of a bead core by pasting the thin-walled protruded part of the bead filler onto said surface and the top of the bead filler is raised by expanding a bladder so as to bond the bottom face of the bead filler to the thin-walled protruded part in order to form the bead filler into a disc shape. CONSTITUTION:The side face of the thin-walled protruded part 2 of a bead filler 1 is cylindrical pasted and wound onto the outer peripheral part at the top surface of a bead core 4 held by a bead clamp ring 3. In this case, the terminal part of the bear filler 1 is cut off and wound so as to mate the cut terminal part to the top of the bead filler by fixing under pressure. From the state of the bead filler as just mentioned above, the inside tip 1b side of the bead filler 1 is raised by expanding the bead filler 1 by 90-120 deg. as shown in the figure 4 through the expansion of a bladder 5 which is arranged at the side of the bead core, due to the introduction of the air W into the bladder 5 in order to fix the back surface side of the bead filler against a back plate 6, which is arranged outside the bead core 4, and, at the same time, to bond the bottom face of the bead filler 1 to the top surface 2a of the thin-walled protruded part 2.
Patent JP-H06345115-A (JP)
Title: Spare manual compression pump for liquid spray
Inventor: PATORITSUKU RAFUUGERU
IPC: F04B9/14
Filed: 1991-01-10
Abstract: PURPOSE: To reduce a projecting degree from a container by reducing a diameter of a lower part of a manual spare compression pump for liquid spray, and fitting most part of the manual spare compression pump into an opening of a container. CONSTITUTION: The arms 36 radially extending and forming the shape of a star are mounted on an approximately intermediate part of a central path 35 of a lower piston 34. A center rod 37 coaxial with the lower piston 34 and having a smaller diameter is supported by the arms 36. One end of a helical spring 18 for returning, of the lower piston 34 is fitted to the central path 35 to be contacted with the arms 36, and the other end is contacted with a stopper S integrated with an inner wall of a main body 4.
Patent JP-H0242280-A (JP)
Title: Magnetic fluid seal device
Inventor: FURUMURA KYOSABURO
IPC: F16J15/43
Filed: 1989-07-20
Abstract: PURPOSE:To improve seal performance by a method wherein a groove for generating a dynamic pressure integrally molded during molding of a plastic magnet member is formed in the surface of the magnet member positioned facing a metallic member. CONSTITUTION:An annular plastic magnet 4 is formed such that a pair of annular plastic magnets 4a and 4b having a herring bone grove 6 formed in their surfaces positioned facing a rotary shaft 1 is combined together. Since, during rotation of the rotary shaft 1, a high dynamic pressure is generated at magnetic fluid 7, enough seal performance can be provided by means of the dynamic pressure and the magnetic force of a magnet 4. Further, since the herring bone groove 6 for generating a dynamic pressure is integrally molded at the time of molding a plastic magnet 4 member, improvement of mould precision enables production of a large amount of the high-precise magnets 4 at a low cost.
Patent JP-H0234942-A (JP)
Title: Transfer device for lead frame of semiconductor device
Inventor: ISHIZUKA MITSUHIRO
IPC: H01L21/50
Filed: 1988-07-25
Abstract: PURPOSE:To detect the transfer error and the dislocation of a lead frame so as to prevent the damage of the lead frame by storing a sensor which detects a hole for positioning of a lead frame in the inside of the pin for positioning. CONSTITUTION:A sensor 6 which detects the hole 1a for positioning of a lead frame 1 opposed to it is stored in the inside of a pin 3 for positioning. By moving the pin 3 for positioning vertically by a driving system 5 so as to let it pass through the hole 1a for positioning, the lead frame 1 is positioned. At this time, a control system 4 reads the condition of the sensor 6 and controls the driving system 5 from it. Hereby, judgement on whether the position 3 for positioning can be elevated or not can be done accurately, which enables damage to be removed from the lead frame 1.
Patent JP-2001013050-A (JP)
Title: Material testing machine
Inventor: MORI MITSUHIRO
IPC: G01N3/08
Filed: 1999-06-30
Abstract: PROBLEM TO BE SOLVED: To provide a material testing machine in which the range of an amplifier for load detection or an amplifier for elongation measurement can be changed over by hand or automatically even when a load or an elongation is selected as a controlled variable and by which a test can be made while the range of every amplifier for detection or for measurement is being kept always properly. SOLUTION: When a load or an elongation is selected as a controlled variable, the range of an amplifier for measurement of the load or the elongation is changed over by hand or automatically. A desired value which is set in advance is reset so as to be proportional to the change rate of the gain of the amplifier before or after the range is changed over. Thereby, the consistency of a signal within a control feedback loop is maintained before or after the range is changed over.
Patent JP-2001014890-A (JP)
Title: Semiconductor device and test method for semiconductor device
Inventor: OTANI JUN
IPC: G11C11/401
Filed: 1999-06-30
Abstract: PROBLEM TO BE SOLVED: To relieve efficiently a defective memory by replacement using an inexpensive test system by transmitting test data generated by a memory control circuit to a first memory region and transferring a compared result of a self-test circuit to a second memory region as data for analysis at the time of test mode. SOLUTION: When a test of a bank A of a semiconductor device 1 is performed and a defective memory cell is replaced by a redundant memory cell, a test result of each memory cell of the bank A is stored in a memory cell of a bank B, and the bank B is used for a memory for analysis. Therefore, a defective address of the bank B is previously relieved by a general use external test device and a general use external redundant replacing device. Next, a test of the bank A is performed using an internal BIST circuit 36, defective address information of the bank A is written in the bank B. And defective address information of the bank A is extracted from the bank B using an external read-out device.
Patent JP-H063698-A (JP)
Title: Thin film transistor device
Inventor: ITOIDA SATOSHI
IPC: H01L29/78
Filed: 1992-06-19
Abstract: PURPOSE:To prevent Al elusion in a later process by reducing the contact resistance between an upper layer wiring and a lower layer wiring, and precluding Al from being exposed at the cut surface of a base board. CONSTITUTION:An Al wiring 12 as a gate wiring is formed on an insulative board 11, and the terminal part of the Al wiring 12 is enclosed with a Cr film 13, and at the same time, all gate wirings are connected outside of the board cut part (A-A line) by Cr film. An Al2O3 film 14 is formed by positive electrode oxidation. A SiNX film 15 is formed, and thereover a a-Si film is formed in the form of island. At the same time with formation of the drain wiring, another Cr film 16 is formed at the terminal part of the gate wiring, and when pixel electrodes are formed, an ITO film 17 is formed at the terminal part.
Patent JP-H0474046-A (JP)
Title: Speed converter for atm cell
Inventor: YORINAGA TOMOYUKI
IPC: H04L7/00
Filed: 1990-07-13
Abstract: PURPOSE:To prevent overflow from being caused to an FIFO by checking a reception cell to write only a valid cell to the FIFO and inserting an idle cell properly when underflow takes place in the FIFO. CONSTITUTION:When underflow takes place in an FIFO 5, a cell data management section 16 receives an FIFO underflow notice signal 11 and informs it to a read processing section 8 by using a read stop command signal 16. The read processing section 8 inactivates a read command signal 10 and activates an idle cell generation trigger signal 18 on the occurrence of underflow in the FIFO 5 and triggers an idle cell generating section 19 so that an idle cell is generated in the same timing as a valid cell. A SEL 22 selects either a valid cell data 17 read from the FIFO 5 or an idle cell data 20 outputted from the idle cell generating section 19 by using an idle cell output command signal 21 from the read control section 8 and outputs the selected cell as a transmission cell data 23.
Patent JP-S5886797-A (JP)
Inventor: HAMURO MITSUO
IPC: H05K13/00
Filed: 1981-11-19
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-S6247545-A (JP)
Title: Streaming potential measuring method
Inventor: IIJIMA HIDEKI
IPC: G01N27/26
Filed: 1985-08-27
Abstract: PURPOSE:To improve the accuracy for measuring a streaming potential by inserting one end of a hollow-shaped cylindrical pipe into a hollow-shaped metallic pipe which is connected to a flow body supply tank, inserting the other end into other hollow- shaped metallic pipe of the same kind, and using two metallic pipes as electrodes. CONSTITUTION:A pressure part 3 to a flow liquid 9, and a pressure sensor 4 are installed to a flow liquid supply tank 2. Also, a hollow-shaped metallic pipe 5 is connected to the supply tank 2, and one end of a hollow-shaped cylindrical pipe 1 for measuring a ZETA potential is inserted into this metallic pipe 5, and also its gap is filled with a seal 13. The other end of the cylindrical pipe 1 is inserted into a hollow- shaped metallic pipe 7 of the same kind as the metallic pipe 5, and the gap is filled with a seal 13'. Also, the other end of the metallic pipe 7 is connected to a flow liquid receiving/supplying tank 12 by a connecting adaptor 6' and an adhesive agent 14'. The ZETA potential of the inside wall surface of the cylindrical pipe 1 is measured by a potentiometer 8 by using the metallic pipes 5, 7 as measuring electrodes by a streaming potential method. Accordingly, an incorrectness caused by using a porous body, and an imperfection, etc. of an electrode installing system caused by using a capillary tube, etc. are eliminated, and the measuring accuracy can be improved.
Patent JP-H1131994-A (JP)
Title: Transceiver
Inventor: HONDA KOUJI
IPC: H04B1/56
Filed: 1997-07-11
Abstract: PROBLEM TO BE SOLVED: To simultaneously perform the bidirectional communications by means of the same frequency and to improve the application efficiency of the information carrier frequency by controlling the transmission timing of both transmission and reply information based on the trigger signal that is received at a slave station. SOLUTION: When the information is sent to a slave unit from a master unit which is kept in a bidirectional transmission/reception state, the trigger signals having each fixed period are generated in sequence. Based on the trigger signal, an arithmetic unit 12 controls a modulator 17 to operate it in every first half of a repetition period of the trigger signal and to stop it in every second half of the repetition period. Receiving the signals from the master unit, the slave unit extracts the trigger signal sent from the master unit via a trigger signal detector 13 and supplies it to a synchronizing signal generator 14 to generate a new trigger signal that is delayed by a half period. Then the unit 12 controls the modulator 17 to operate it in every first half of a repetition period of the new trigger signal and to stop it in every second half of the repetition period respectively.
Patent JP-S6079275-A (JP)
Title: Ac ammeter
Inventor: WANI KOUICHI
IPC: G01R15/14
Filed: 1983-10-07
Abstract: PURPOSE:To enable the measurement of an AC current with the waveform containing a very high harmonics and higher harmonic by combining a shunt and an effective value conversion circuit. CONSTITUTION:This AC ammeter detects an AC current as signal voltage with a shunt and generates a signal corresponding to the effective value thereof. The shunt is so arranged as to be a coaxial type shunt structural body comprising a cylindrical body serving a first current path and a bar-like body inserted into the cylindrical body insulated therefrom to serve as the second current path, in which the intermediate section of either said cylindrical body or bar-like body is removed to be replaced with a resistor while one end each of the cylindrical body and the bar-like body shall be a connection terminal for the power source unit while the other end each thereof a connection terminal for loads. An arithmetic unit processes an input signal analogically and outputs DC voltage corresponding to the effective value of the input signal. As the shunt 4 has a flat frequency characteristic even covering MHz band, this enables the measurement of current with a high frequency up to several hundreds kHz combined with the frequency characteristic of an effective value conversion circuit 2 and AC current with the waveform containing a higher harmonic upto several hundreds kHz.
Patent JP-S6431193-A (JP)
Title: Equal-interval broken line lithography system
Inventor: TANAKA SHIGERU
IPC: G09G1/00
Filed: 1987-07-28
Abstract: PURPOSE: To facilitate plotting of a equally pitched broken line without increasing plotting time, regardless of change in the angle against the horizontal direction of the broken line, by using a read only memory stored with data in which a pattern length is converted in accordance with the angle. CONSTITUTION: In a broken line plotting system equipped with a bit map memory 16, pattern register 1 and DDA 15, using as an address the pattern and angle given to the plotting pattern register, a read only memory(ROM) 2 is used storing data in which the pattern length is converted in accordance with this angle. Consequently, without increasing the time required for plotting and regardless of change in the angle against the horizontal direction of the broken line, a broken line plotting system can be obtained in which the broken line element and its pitch are the same. In addition, by changing a ROM table 2, displaying is made possible with the optimum length of the broken line element in accordance with the aspect ratio of the display.
Patent JP-H1014390-A (JP)
Title: Vegetation culture mat
Inventor: KASHIWAGI SHIGERU
IPC: A01G1/00
Filed: 1996-06-27
Abstract: PROBLEM TO BE SOLVED: To prepare a vegetation culture mat, satisfying necessary conditions (an adequate level of water permeability, air permeability and water retainability) as a vegetation culture mat, having simple structure, improved in workability on construction, at the same time having a reduced degree of weak point such that a vegetation culture mat has large settleability in its surface and further well designed for heat insulating properties by using a newly developed special foaming synthetic resin having stable water permeability and heat insulating property both in perpendicular and horizontal directions, lightweight and an adequate level of hardness as a water permeable hard supporting material. SOLUTION: This vegetation culture mat 1 is composed of water permeable hard supporting materials 2 and water absorbing soft materials 3 which are alternately placed in the horizontal direction. As an alternative form, the vegetation culture mat 1 is composed of water permeable hard supporting materials 2 and water absorbing soft materials 3 which are engaged with each other. Further, a light-transmitting protective material 5 is placed on a vegetation culture mat 1.
Patent JP-2000012742-A (JP)
Title: Semiconductor device and circuit module therewith
Inventor: HASEGAWA YASUO
IPC: H05K1/18
Filed: 1998-06-17
Abstract: PROBLEM TO BE SOLVED: To secure the electrical insulation between the external lead terminals of a compact semiconductor device for handing a relatively high voltage. SOLUTION: In a semiconductor device, where a plurality of external lead terminals 2 are led from the same exposure surface as that of an envelope where at least one semiconductor element is sealed, projecting parts 1A and 1B for extending the creepage distance between the external lead terminals 2 are formed between the external lead terminals 2, and at the same time, a stopper part 1C that is higher than the projecting parts 1A and 1B is provided on the same exposure surface where the projecting parts 1A and 1B are formed.
Patent JP-S6430326-A (JP)
Title: Digital phase synchronizing circuit
Inventor: NAKAMURA SHINICHI
IPC: H03L7/06
Filed: 1987-07-27
Abstract: PURPOSE:To obtain a stable multiple signal processing circuit without adjustment by digitizing a phase synchronizing circuit. CONSTITUTION:An analog digital converted input signal (synchronized frequency signal) A is supplied through a latch circuit 11 to a gate circuit 13, the output of the gate circuit 13 is integrated by an integrating circuit 14 and thus, amplitude information of 0 or 1 is obtained. By the amplitude information, the frequency-dividing ratio of a frequency-dividing circuit 7 to frequency-divide a reference signal B is controlled, and by using the output of the frequency- dividing circuit 17, the conducting timing signal of the gate circuit 13 is obtained. Thus, the stability of a phase synchronizing group is obtained, and the phase control with the accuracy finer than the sampling period of the input signal can be obtained.
Patent JP-H01163029-A (JP)
Title: Manufacture of elastomer molded form using polyisocyanate polyaddition substance containing urea group as base material
Inventor: OTSUTOO GANSUTERU
IPC: B29C39/32
Filed: 1988-07-28
Abstract: PURPOSE: To utilize a principle of using water as a chain length lengthening agent without inconvenience by using the water as the agent by manufacturing an elastomer molding by casting. CONSTITUTION: A water is used in an amount of 10 mol.% per one equivalent of an isocyanate group in a polyisocyanate component. A reaction mixture prepared from the component is fully filled in an open mold by a casting method until an introducing amount becomes 95% of a volume of the mold. Then, the mold is snugly closed so that a carbon dioxide generated by a reaction between the water and the isocyanate is not substantially brought about an expansion of the mixture. And, a reaction is conducted under sufficient pressure for ensuring no occurrence of bringing about foaming of the mixture by the gas carbon dioxide.