baber/WOPTO huggingface dataset:
Patent JP-H06150322-A (JP)
Title: Recording method for optical recording medium
Inventor: YAMADA TAKASHI
IPC: G11B7/2472
Filed: 1992-11-10
Abstract: PURPOSE:To obtain excellent characteristics by providing a recording film contg. phthalocyanine dyestuff and a light reflection film existing thereon on a light transparent substrate to form a recording medium and determining a recording power in such a manner that the so-called beta value of the recording and reproducing signals of the medium attains a -0.3 to 0 range at the time of executing recording with such recording medium. CONSTITUTION:The beta value is determined in the -0.3 to 0 range. The reason thereof lies in that block error rates, crosstalks, degradation of tracking error signals after recording, etc., arise if this value exceeds 0, and block error rates, jitters, degradation of the recording and reproducing signal outputs, etc., arise if the value is below -0.3. More specifically, the optical recording medium 1 is produced by providing the recording film 12 on the light transparent substrate 11, laminating the light reflection film 13 thereon and covering the surface thereof with the protective layer 14. Transparent materials, such as polycarbonate resins and polymethyl methacrylate resins, are used for the substrate 11 in terms of an improvement in productivity and the thickness thereof is specified to 1.0 to 1.5mm. The thickness of the recording film 12 is specified to 10 to 100nm.
Patent JP-2001114889-A (JP)
Title: Method for producing meta aromatic polyamide solution
Inventor: IWASAKI HIROSUMI
IPC: D01F6/60
Filed: 1999-10-21
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a meta aromatic polyamide solution, capable of producing a high-quality fiber in excellent productivity, even by using a solution obtained by solution polymerization as a spinning solution for wet spinning only by subjecting the solution obtained by solution polymerization to a filtration treatment. SOLUTION: This method for producing the meta aromatic polyamide solution comprises polymerizing a meta aromatic diamine such as m-phenylenediamine, etc., with a meta aromatic dicarboxylic acid chloride such as isophthalic acid dichloride, etc., in an organic polar solvent and neutralizing evolved hydrogen chloride with an aqueous solution of sodium hydroxide or potassium hydroxide.
Patent JP-H01141438-A (JP)
Title: Data transmission system
Inventor: SATO MAKOTO
Filed: 1987-11-27
Abstract: PURPOSE:To easily execute a routing control and a protocol conversion by executing the routing control by means of address information for the routing control added to the information field of a packet and by means of a network constitution information table. CONSTITUTION:By that a gateway device uses a means to execute the routing control by means of the address information for the routing control added to the information field of the packet transmitted on a data transmitting path and by means of the network constitution information table, a data transmission between arbitrary data processing terminals in a data transmission system can be executed. Thus, even when plural transmitting routes exist as in the case of the data transmission between data processing units Ta1-Tck, a transmitting source data processing unit can transmit the data by adding the address information for the routing control composed of a transmitting destination address Ad and a transmitting source address As to the information field of the packet sent to a node device.
Patent JP-H05107536-A (JP)
Title: Convergence adjusting method of liquid crystal projector
Inventor: OBA NAOYUKI
IPC: G09F3/00
Filed: 1991-10-18
Abstract: PURPOSE:To relatively easily adjust mechanical convergence without using any light shield plate. CONSTITUTION:A filter 11 which transmits only two color components is interposed in a common path that light beams after being transmitted through respective liquid crystal panels 2R, 2G, and 2B pass and the mechanical convergence between the liquid crystal panels corresponding to the two color light beams passing through the filter 11 is adjusted. Therefore, the need to provide an unnecessary space which is used only for the adjustment in a main body is eliminated. Further, the troublesome operation for putting the light shield plate in and out of the main body at the time of the adjustment is eliminated.
Patent JP-H05112238-A (JP)
Title: Transport device
Inventor: HIROOKA SHIGERU
IPC: G05D1/02
Filed: 1991-10-18
Abstract: PURPOSE:To enhance the coupling accuracy of a pallet table transporting device by furnishing a solenoid at either of a pallet table and a dolly, furnishing a magnetic tool to be attracted at the other, arranging one of them to be movable in the vertical direction, and attracting the tool to be attracted with current feed to the solenoid. CONSTITUTION:An attracting tool 4 consisting of a solenoid S with the magnetic pole surface facing up is installed on the oversurface of a dolly 2. Current is fed to this solenoid S in conformity to a signal given by a control device of the dolly 2 to generate a magnetic power at the magnetic pole surface. On a pallet table 3, a tool to be attracted 5 consisting of a magnetic piece M is mounted by leaf springs 33, 33 in a position mating with the attracting tool 4. A U-bend 33A is formed between the magnetic piece M and a leaf spring supporting piece 34. and the magnetic piece M is held in the up position and also is arranged as movable downward through the action of magnetic power of the attracting tool 4. Therein the dolly 2 is set in the specified position of the space A in the pallet table 3, and current is fed to the solenoid S, and thereby the tool to be attracted 5 is attracted to the attracting tool 4, and the two are coupled together.
Patent JP-H04172763-A (JP)
Title: Color picture reader
Inventor: SHIMIZU SATOSHI
IPC: H04N1/04
Filed: 1990-11-07
Abstract: PURPOSE:To prevent the deterioration in the dynamic range of an output signal of an image sensor corresponding to the middle of a light emitting diode array at the lighting of a light emitting diode array by making a distribution of light quantity radiating an original face almost equal to that of a fluorescent light tube. CONSTITUTION:Since a shading correction plate 104 is arranged between a light emitting diode array 101 and an original platen glass 17, the light quantity in the middle of the light emitting diode array 101 is larger than the light quantity at both ends and the illuminance distribution characteristic of the light emitting diode array 101 is made almost equal to that of fluorescent light tubes 102, 103. Thus, an output level of a CCD sensor 12 is made almost flat and the dynamic range in the middle is not deteriorated.
Patent JP-H0677577-A (JP)
Title: Tunable solid laser
Inventor: SUGIYAMA RYO
IPC: G02B6/00
Filed: 1991-09-02
Abstract: PURPOSE:To lessen a deterioration with age add an optical deterioration, which is generated in a working atmosphere, and to markedly facilitate the handling of a tunable solid laser by a method wherein a solid element is used for all of a laser oscillation medium, the wavelength shift medium of a wavelength extension device and the like. CONSTITUTION:A Ti:Sapphire laser is used for a tunable solid laser 1, two BBO (beta-BaB2O4) crystals are used for a non-linear optical crystal of a wavelength extension device 2, an Nd:YAG laser is used for a solid laser 3 and five sheets of mirrors are used for a delay optical system 4 to generate ultraviolet rays to near infrared rays. As a result, laser beams of wavelengths of 780, 613, 448, 389 and 316nm are obtained in each wavelength mixing system. As shown in the above, a laser oscillation to cover a wide region ranging from an ultraviolet region to an infrared region becomes possible safely and easily by a small-scale device without needing equipments in a tunable solid laser.
Patent JP-S63153879-A (JP)
Title: Semiconductor laser
Inventor: FURUYA AKIRA
IPC: H01S5/00
Filed: 1986-12-18
Abstract: PURPOSE:To realize a highly reproducible narrow-stripe oscillating region with leak reduced by a method wherein a specified AlGaAs clad layer is formed on the surface of a multiple quantum well active layer, an impurity-diffused region of one conductivity type is formed extending from the surface to the bottom of the active layer with a stripe-geometry portion retained not affected for a current path, and an impurity-diffused region of the conductivity type is formed extending from the surface to a level not reaching the active layer. CONSTITUTION:On a substrate 1, a buffer layer 2, clad layer 3, MQW active layer, clad layer 5, clad layer 6, and an electrode contact layer 7 are grown. A stripe-geometry SiN film is formed, and then an Si film is formed on the surface of the electrode contact layer 7. A heat treatment process is accomplished under As pressure, whereby Si is caused to diffuse from the Si film into under the MQW active layer for the formation of an Si-diffused region 11. The Si film serving as the source of impurity and the stripe-geometry SiN film serving as a mask are removed, and then Zn is diffused into the entire surface for the formation of a Zn-diffused region 12. A p-side electrode 8 is built on the front side of the wafer and an n-side electrode 9 is built on the rear side of the wafer.
Patent JP-2001078963-A (JP)
Title: Visual acuity examination device
Inventor: KAWAMOTO HIROSHI
IPC: A61B3/02
Filed: 1999-09-14
Abstract: PROBLEM TO BE SOLVED: To suppress the power consumption of lighting sources and clearly light a visual target at uniform brightness by providing the lighting sources mounted to a partitioned base at such positions at turning a luminous flux from the lighting source into an approximately parallel luminous flux by a concave reflecting face. SOLUTION: This visual acuity examination device body 10 is constituted of a translucent plate 12 having a visual target 11 to be lit clearly for a subject printed by silk-screen in the top stage and a safety cover 15 covering a power supply 13 and a control circuit 14 in the bottom stage. A partitioning plate 20 has such a shape as engaged with a concave reflecting face 19, has a pattern feeding power to a lighting source 21 formed on the surface, and has the lighting source 21 soldered to a position half the radius of a semicircle to be engaged with the concave reflecting face 19.  The lighting source 21 is arranged in the position half the radius from the depth of the concave reflecting face toward the front so that parts of the luminous flux of the lighting source 21 become parallel luminous flux to clearly light the visual target 11 at uniform brightness mixed with the directly lighting luminous flux and the luminous flux of the lighting source is effectively utilized.
Patent JP-H01142693-A (JP)
Title: Resin frame
Inventor: IGUCHI TOMOJI
IPC: G09B19/10
Filed: 1987-11-30
Abstract: PURPOSE: To provide a fine stick made of new materials which supersedes a fine bamboo stick by applying specific plastic materials which are suitable for formative works, where linear materials are assembled, and can add new possibilities. CONSTITUTION: Strand-shaped plastics extruded from an extruding machine are successively cut by a certain length to easily take out fine sticks made of plastics. Used fine sticks made of plastics have 0.5 to 5mm average diameter and are made of a resin, which is softened in hot water and is solid at a room temperaturem, and are easily formed by <100 deg.C temperature of hot water or an electric heater. Thus, fine sticks made of plastics can be easily softened and worked.
Patent JP-H05139849-A (JP)
Title: Production of ceramic multilayer substrate
Inventor: MIURA KAZUHIRO
IPC: C04B35/64
Filed: 1991-11-15
Abstract: PURPOSE:To provide the title substrate, a ceramic plate to be used as floor plate and cover in baking ceramic multilayer substrates. CONSTITUTION:The objective substrate, a ceramic plate to be used as floor plate 14 and cover 11 in baking ceramic multilayer substrates 12, being characterized by providing holes with their area accounting for 5.0-30.0% of the whole plate area. Thereby, the thermal conduction in the baking becomes uniform, enabling high-speed baking while retaining the substrate's smoothness ; furthermore, the O2 atmosphere close to a Cu conductor is not impaired, and the reaction between the substrate and conductor and the sintering reaction within the conductor are promoted, thus resulting in high bond strength and reduced sheet resistance.
Patent JP-H01141729-A (JP)
Title: Method for cutting steel cord in tire former
Inventor: IRIE NOBUHIKO
IPC: B29D30/46
Filed: 1987-11-30
Abstract: PURPOSE:To cut material at the predetermined angle even when the material deforms by a method wherein a cutter is freely rotatable and shiftable in the direction of a rotating shaft and its amount of travel and its movement during travel are detected and calculated so as to find out the angular change. CONSTITUTION:A breaker ply 28 is fed by the predetermined length by means of material conveyers c-g. The cutter 46 of a cutting-off device (i) lowers while rotating to the position Z and, after that, a cutting angle is found out by detecting the amount of travel of the cutter with a pulse emitter 57 and its movement in the direction of its rotating shaft during travel with a distance sensor for calculation. The inspection of the angle is done before or during the cutting-off of material 28 with the cutter 46 by comparing the angle with the value on the structural design of tire or by checking whether the difference between the angle at a portion acting as the staring end for winding round a forming drum (a) and at the angle at a portion acting as the rear end for winding lies within the range, in which no intersection of wire occurs when both the ends are joined together, or not. Thus, even when material deforms, cutting-off can be done at the predetermined angle, resulting in allowing to realize highly reliable cutting-off and joining.
Patent JP-2000130972-A (JP)
Title: Plate-type heat pipe and its manufacture
Inventor: KODACHI OSAMU
IPC: F28D15/02
Filed: 1998-10-21
Abstract: PROBLEM TO BE SOLVED: To improve the reflux performance due to the capillary operation of operation fluid, and to increase heat transmission characteristics by providing a container where both the end parts of a perforated pipe are sealed, by inserting a wire wick member into the hole, and at the same time by allowing the container to be subjected to press machining for bonding the wire wick member closely to the inner wall of the hole. SOLUTION: In a plate-type heat pipe 1, a container 10 consisting of a perforated pipe with a plurality of holes 12 being in parallel is provided. Then, a wire wick member 11 (a metal wire) is inserted into each hole 12, and at the same time the container 10 is subjected to press machining for allowing the inner wall of each hole 12 to closely adhere to the wire wick member 11. More specifically, a cavity part is formed from each hole 13 and the connection part of an end part, the inside of the cavity part is subjected to washing, deaeration, or the like, and operation liquid is accommodated into the cavity part, thus stably securing a fine gap near an adhesion part over entire length in the adhesion part between the wire wick member 11 and the inner wall of each hole 12, and hence improving the reflux performance due to the capillary action of operation fluid.
Patent JP-H08133843-A (JP)
Title: Superplastic silicon nitride sintered compact and its production
Inventor: MITOMO MAMORU
IPC: C04B35/626
Filed: 1994-11-09
Abstract: PURPOSE: To produce a superplastic silicon nitride sintered compact capable of providing a highly tough sintered compact by the superplastic working. CONSTITUTION: This superplastic silicon nitride sintered compact is constituted of >=85 and <=98vol.% β type silicon nitride grains and >=2 and <=15vol.% grain boundary phase and has >=95% relative density. The silicon nitride grains comprise >=93 and <=99.5wt.% matrix grains having <=0.3μm average grain diameter and >=0.5 and <=7wt.% nuclear grains having the average grain diameter of >=2 and <=7 times the average grain diameter of the matrix grains.
Patent JP-H01143073-A (JP)
Title: Reproducing device
Inventor: YASUMURA HIROTO
IPC: G11B20/00
Filed: 1987-11-30
Abstract: PURPOSE:To reproduce an audio signal without fail by separating first and second audio reproducing signals from a reproducing signal to be from a recording medium whose first and second audio modulating signals are multiple recorded and executing a demodulating processing. CONSTITUTION:The two types of FM sound signals to be inputted to a reproducing FM sound input terminal 1 are separated to respective bands by first and second BPFs 2 and 3 and one FM signal is demodulated by a demodulating circuit 4 and inputted to a signal selecting circuit 7 as the audio signal of a main signal (L+R signal). The output FM sound signal is demodulated by a demodulating circuit 5 and inputted to the signal selecting circuit 7 as a sub signal (L-R signal). Then, it is also inputted to a detecting circuit 6. When the sub signal is inputted, the detecting circuit 6 inputs a stereo record detecting signal to the circuit 7. A switch 13 is connected in a 2' side by the stereo record detecting signal and a stereo signal (L and R) and the main signal or sub signal of a bilingual mode are obtained in output terminals 9 and 10 by a changing- over switch 14.
Patent JP-H11134817-A (JP)
Title: Digital pll circuit
Inventor: MINODA HIDENORI
IPC: H03L7/06
Filed: 1997-10-31
Abstract: PROBLEM TO BE SOLVED: To provide a digital PLL circuit capable of expanding a lock range and a capture range and switching a method for controlling the oscillation frequency of a VCO. SOLUTION: A speed detection circuit A55 detects deviation of the input rate by using signals 3T to 11T, then expresses the input rate in seven stages, and switches the freerunning frequency of a PLL clock generation circuit 54. A speed detection circuit B56 detects the signal 11T and detects how much its width is deviated from a standard value. An output of the speed detection circuit A55 or B56 is selected by a switch 57 in accordance with the quantity of distortion of the input rate and is supplied to a control signal output section 58. Then, a control signal is supplied to a VCO 60 through a low-pass filter 59.
Patent JP-H11218449-A (JP)
Title: Temp. sensor and manufacture thereof
Inventor: KUZUOKA KAORU
IPC: H01C1/028
Filed: 1998-10-22
Abstract: PROBLEM TO BE SOLVED: To provide a temp. sensor capable of accurately detecting the temp. and manufacture thereof. SOLUTION: For manufacturing a temp. sensor 1 composed of a thermosensitive part 13 composed of a thermistor element 11 and lead wire 12 and sheath pin 15 contg. a core wire 14, the lead wire 12 and core wire 14 are interconnected, an insulator 130 is disposed outside the thermosensitive part 13 and filled with an inorg. adhesive 135 to secure thermosensitive part 13 inside the insulator 130, a metal cover 16 is disposed outside it, and the end of the metal cover 16 and end of the sheath pin 15 are interconnected.
Patent JP-H10128859-A (JP)
Title: Heat resisting tank type molded product and its molding method
Inventor: OTAKA MASARU
IPC: B29C70/06
Filed: 1996-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a heat resisting tank type molded product which can be obtained by a method of high operating efficiency without requiring time while it is molded by an FRP molding method and heat resistance and strength are maintained, and its molding method. SOLUTION: A heat resisting tank type molded product is molded by an FRP molding method. The heat resisting tank type molded product and its manufacturing method are provided by laminating successively a vinyl ester resin layer as an intermediate layer and a general resin layer containing reinforcing fiber as an outer layer outside a gel coat resin layer constituting an inner layer. A gel coat resin film 1 is formed on a cavity formed face of a mold, and its outside face is cured by lining with vinyl ester resin film (e) under conditions of wet on wet, and general resin layers 3, 4 containing reinforcing fiber are formed on a surface of the cured layer, which is cured.
Patent JP-H11131052-A (JP)
Title: Seal
Inventor: MITSUI TAKAYOSHI
IPC: F16J15/12
Filed: 1997-10-31
Abstract: PROBLEM TO BE SOLVED: To obtain a seal neither releasing a foreign matter to a space to be sealed nor requiring strong power for fastening. SOLUTION: This seal has a jacket 3 made of a metal with an opening part 31 for preventing a substance generated from a core member from transferring to a space to be sealed on the core member made of an elastic organic polymer such as an O-ring 2. The seal is useful as a vacuum seal and is capable of miniaturizing and lightening a vacuum apparatus.
Patent JP-H10138604-A (JP)
Title: Printing device
Inventor: MURAKI MOTOHITO
IPC: B41J25/308
Filed: 1996-11-13
Abstract: PROBLEM TO BE SOLVED: To manufacture a printing device capable of being controlled in its head gap significantly inexpensively. SOLUTION: When the head gap needs to be changed at receiving signals from a gap instruction switch 32, a carriage driving motor 11 is controlled based on the rate indicated by the gap instruction switch 32 through a head gap control means. A cam member 22 is put into contact with specific contact members 2a, 2b disposed out of the printing area by a printing head 5 and, through this contact, alteration is made to the cam surface being in contact with the guide frame 21 of the cam member 22 in order to allow the carriage 6 to rotate about a guide rail 8. Hence, head gap is given alteration through this rotation.
Patent JP-H10144046-A (JP)
Title: Method for testing strength of tape cassette and device therefor
Inventor: TABUCHI SHUJI
IPC: G11B23/113
Filed: 1996-11-13
Abstract: PROBLEM TO BE SOLVED: To facilitate the test by setting a tape cassette in the state of tentative assemblage or in the state of one complete tape cassette on a testing table and dropping a weight onto specific spot of the tentatively assembled or fully completed tape cassette. SOLUTION: The tape cassette 6 as a test sample is made by incorporating tape guides 7 into between an upper case 6a and a lower case 6b and fixing up the upper case 6a and the lower case 6b with tightening screws. The figure (b) shows the state of assemblage of the upper case 6a and the lower case 6b via the tape guides 7 and tightened by the screws. Although this tentatively assembled tape cassette having the upper case 6a and the lower case 6b incorporating the tape guides 7 and the screws tightening up the upper case 6a and the lower case 6b as a mode to be considered necessarily for the strength test, such parts as guide rollers and tape pads, etc., may also be added as many as possible to carry out the strength test.
Patent JP-H04178192-A (JP)
Title: Dc motor control circuit
Inventor: NOZOE SATOSHI
IPC: H02P7/29
Filed: 1990-11-07
Abstract: PURPOSE:To timely cause a DC motor to stop suddenly by providing a damping means for short-circuiting both ends in a closed state and damping the DC motor and by providing a drive circuit for driving the damping means to the closed side, when the number of revolutions or torque of the DC motor takes a required value. CONSTITUTION:A power switch SW1 interlocks with an operating lever, a damping contact SW2 is closed at the time of power OFF to damp a DC motor M, and a short-circuit contact SW3 is closed at the time of pulling the operating lever to the maximum stroke to short-circuit the switching part D-S of a motor current switching element TR2. When the actual number of revolutions Nr of the DC motor M becomes the minimum number of revolutions set by a reference variable power supply RV1 or the torque of the motor becomes a set torque, the output of each of comparators AP2 and AP3 is reversed from a low level to a high level. As a result, a transistor TR3 is ON-driven and a relay RL is conducted so that the damping contact SW2 is driven to the closed side. Thus, the DC motor M is damped to stop suddenly irrespective of the operation of the operating lever.