baber/WOPTO huggingface dataset:
Patent JP-H01127172-A (JP)
Title: Model profiling gas cutting device
Inventor: SAI AKIRA
IPC: B23K7/00
Filed: 1987-11-12
Abstract: PURPOSE:To improve quality of cutting by providing a movable guide to guide a profile roller and turning it to first and second positions automatically via the profile roller. CONSTITUTION:The movable guide 2 to turn with the center O as a center with respect to a model 1 is provided and first and second stoppers 3 and 4 to position the movable guide 2 on the first and second positions are arranged. At the time of starting working, the guide 2 is abutted on the stopper 3 and arranged to the first position. The profile roller 11 is abutted on the side 2a of the guide 2 and the roller 11 carries out cutting while profiling the side 2a. In completion of working, the roller 11 under cutting presses the guide 2 to turn it to the second position to abut on the second stopper 4. The roller 11 is guided to the guide side 2b and proceeded to the working end position PE. Since material 21 to be worked is worked uniformly, the quality of cutting is improved.
Patent JP-H04160397-A (JP)
Title: Nuclear reactor vessel
Inventor: FUKUYAMA MAYUMI
IPC: G21C13/032
Filed: 1990-10-24
Abstract: PURPOSE:To intend improvement of aseismicity by suspending a roof slab independently of a nuclear reactor vessel within the vessel and by so constituting the slab that the slab is disposed on a concentric circle of a vertical separating wall which has a natural frequency higher than that of the vessel, and the ratio of radius of the slab to that of the vessel is more than or equal to 0.58 and less than or equal to 1. CONSTITUTION:A vertical separating wall 7 is suspended from a roof slab 2 in the form of a double cylinder shape together with a nuclear reactor vessel 1, and a narrow gap is formed between the lower end and a horizontal separating wall and also the wall 7 is immersed in a liquid coolant. The frequency of natural vibration in horizontal direction of the wall 7 is higher than that of the vessel 1 and the ratio of radius of the roof slab to that of the vessel 1 is greater than or equal to 0.58 and less than or equal to 1. In this way, in case that external force such as of an earthquake is exerted, vibration of a barrel part of the nuclear reactor vessel 1 and a barrel part of the vertical separating wall interferes with one another, depending on the depth of a liquid 8 in a gap between the barrel part of the separating wall 7 and the barrel part of the vessel 1, and, consequently, the load supported by the vessel 1 is transferred to the separating wall and then to the roof slab 2 via the separating wall. When such composite function works the most effectively, the load supported by the vessel 1 can be reduced as much as around 40% at the maximum compared with the own dead load, and therefore the aseismicity can be improved substantially.
Patent JP-2001111055-A (JP)
Title: Thin-film transistor and its manufacturing method
Inventor: TERAUCHI MASAHARU
IPC: H01L29/786
Filed: 1999-10-05
Abstract: PROBLEM TO BE SOLVED: To solve problems where the LDD region of a crystal Si thin-film transistor is damaged since the LDD region is formed by injecting impurities, a conventional LDD process is complex since the LDD process includes many impurity injection processes, and costs may also be increased by the hydrogenating process of a polycrystalline Si. SOLUTION: A fixed charge with a sign opposite to that of the conductive type of a channel part is introduced into a side wall being formed by an insulating film on the side of a gate electrode for inducing a carrier in a polycrystalline Si region at the lower part of the side wall, and resistance is reduced for effectively forming an LDD region without injecting impurities into a polycrystalline Si film. Also, the insulating film for forming a side wall is formed in atmosphere including hydrogen, nitrogen, or both of them for effectively achieving a hydrogenation process.
Patent JP-H05121968-A (JP)
Title: Semiconductor device for high frequency circuit
Inventor: SAKAI YUKIO
IPC: H01L27/088
Filed: 1991-10-30
Abstract: PURPOSE:To prevent the deterioration in the frequency characteristic by extracting a drain output of an RF amplifier whose gate connects to ground and using a source connecting to ground via a coil as an input terminal through a series circuit comprising a source follower and a constant current source. CONSTITUTION:A GaAsMESFET 12 forms a low input impedance common gate amplifier. A FET 17 forms an output of a source follower and forms a source follower amplifier together with a low current source FET 18 and a drain of the FET 12 connects to a gate of the FET 17. Thus, a load of a drain of the FET 12 hardly receives the effect of the gate of the FET 17 with a high impedance and a resistor 11 is dominant, resulting that the frequency characteristic at an RF output terminal 15 is not deteriorated.
Patent JP-H10134295-A (JP)
Title: Jam discrimination method for road traffic condition
Inventor: BERNHARD KRAUSE
IPC: G08G1/01
Filed: 1996-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a method with which jamming can be surely discriminated on road traffic conditions with a little data processing cost and a little measuring technique cost while reducing a time loss as much as possible without being affected by traffic conditions. SOLUTION: A predictive sector terminating value is periodically calculated from traffic volume detected at the starting edge of a sector, the average value of speed, the length of sector, the timewise distribution accept value of automobile within a measuring interval and the speed over accept value of sector passing automobile, and periodically compared with the average value of traffic volume at the ending edge of sector, differential traffic volume is detected and added over cycles, the number of vehicles left in the sector to be monitored is continuously detected and when that number exceeds a critical value, the announcement of jamming is triggered.
Patent JP-H07138086-A (JP)
Title: Aluminum nitride substrate having surface conductivity and its production
Inventor: ASAI HIRONORI
IPC: C04B41/53
Filed: 1993-11-15
Abstract: PURPOSE:To provide an aluminum nitride substrate, having the surface conductivity and improved in joining strength and patterning properties of a metallic thin film according to a thin-film forming technique such as thin-film wiring and a method for producing the aluminum nitride substrate. CONSTITUTION:This aluminum nitride substrate having the surface conductivity is obtained by carrying out the smoothing treatment of a surface (1a) of an aluminum nitride substrate 1, then etching the surface (1a) with a weak acidic or a weak alkaline aqueous solution such as an aqueous solution of potassium borate or sodium phosphate, composing the surface (1a) for forming a thin film of the aluminum nitride substrate 1 from a smooth surface as a whole by the etching treatment, dispersedly forming microprotrusions 4 of aluminum nitride and then forming a metallic thin film 5 on the surface (1a) of the aluminum nitride substrate 1 having the microprotrusions 4 according to a thin-film forming technique.
Patent JP-H08147961-A (JP)
Title: Reject mechanism and hard disk driving device provided therewith
Inventor: SUZUKI HISASHI
IPC: G11B33/12
Filed: 1994-11-18
Abstract: PURPOSE: To obtain a reject mechanism which can easily attach and detach a hard disk drive to and from a connector and a hard disk drive device using this mechanism. CONSTITUTION: An eccentric cam 4 is rotated around a revolving shaft 3 to move a second lever 6 forward by pushing a first lever 5 existing in the standby position of the reject mechanism in the case of removing the cartridge type hard disk drive 1 (hereafter described as the HDD 1) from the connector 2. At this time, the front end of a second lever 6 pushes the HDD 1 forward. The HDD 1 is removed from the connector 2 by these operations. To mount the HDD 1 to the connector, a user brings the HDD 1 closer to the connector 2 and the HDD 1 pushes the second lever 6, thereby applying the force in a rotating direction (a direction reverse to the direction at the time of removal) around the revolving shaft 3 on the eccentric cam 4 in contact with the second lever 6. The first lever 5 is moved as well by rotation of the eccentric cam 4.  The first lever 5 returns to the home position, i.e., the standby position of the reject mechanism when the HDD 1 and the connector 2 are completely fitted.
Patent JP-H08146814-A (JP)
Title: Image forming device
Inventor: FUJITA TORU
IPC: G05D23/19
Filed: 1994-11-18
Abstract: PURPOSE: To prevent paper from being wrinkled and faulty fixing from occurring by switching the set temperature of a heating roller according to the estimated value of a heat accumulation amount in a pressure roller in a period when a fixing device idles. CONSTITUTION: By estimating the heat accumulation amount in the pressure roller 42 in the period of detecting that the fixing roller is rotated and that a sheet material is not at a nip part, the set temperature of the heating roller 41 is switched in accordance with the estimated value of the heat accumulation amount in the pressure roller 42 estimated. In such a case, as a method for detecting whether or not the transfer paper is at the fixing nip, a flag is raised based on a signal from a paper feeding sensor 14 after specified time. That the fixing roller is rotated is detected according to a driving signal transmitted to a driving system 70 by a control system 51.  Thus, the estimated value of the heat accumulation amount in the pressure roller 42 is integrated only in the period when the fixing device 40 idles after turning on a power source, and the set temperature of the fixing device 40 is switched according to the integrated value.
Patent JP-H04157962-A (JP)
Title: Optical original reader
Inventor: HONGOU HIROTAKA
IPC: H04N1/028
Filed: 1990-10-22
Abstract: PURPOSE:To obtain a picture signal of high definition and high precision by providing a groove in the storage part of a rod lens array in a base and attaching a light shielding body to its side face to prevent stray light from a gap from being made incident on a photoelectric transducer. CONSTITUTION:The light with which an original 7 is irradiated from a light emitting diode array 10 is reflected on the surface thereof and passes a rod lens array 2 and is converted to an electric signal by a photoelectric transducer 9 and is outputted. Though this reflected light penetrates a gap part 3a, it is attenuated according as going toward the gap 3a and does not reach the array 9 because a groove 4 is provided in the gap part 3a and a light shielding body 5 is attached to the array 2. Thus, the light to the array 9 is reflected by the surface of the original 7 and does not pass the array 2, and the reflected light and the stray light are not simultaneously converted by the array 9, and the picture signal of high definition is obtained.
Patent JP-S62142405-A (JP)
Title: Limiter amplifier
Inventor: CHIBA YUMI
IPC: H03G11/00
Filed: 1985-12-17
Abstract: PURPOSE:To set limiter voltage optionally at high gain and low noise by making the device the form of an independent emitter grounding amplifier. CONSTITUTION:In a limiter amplifier that limits and amplifies amplitude of input signals, the first transistor 4 in which the collector is connected to an output terminal and to a power source through a load resistance 11, the emitter is connected to grounding potential and the base is connected to an input terminal to which input signals are inputted, the second transistor 5 in which the collector is connected to an end of the load resistance 11 and the emitter is connected to another end of the load resistance 11, and the base is biased to specified voltage, and the third transistor 9 in which the collector is connected to the collector of the first transistor, the emitter is connected to grounding potential and the base is biased to specified voltage are provided. Because of independent emitter grounding amplifier constitution, higher gain and lower noise characteristics are obtained compared with differential amplifier constitution, and further, by changing the value of resistance for base bias of a transistor for amplitude limiting, limiter voltage can be set optionally.
Patent JP-S62142983-A (JP)
Inventor: TEZUKA MASARU
IPC: F25D3/10
Filed: 1985-12-18
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-2000138433-A (JP)
Title: Interconnection structure
Inventor: DOVE LEWIS R
IPC: H01L23/66
Filed: 1999-10-06
Abstract: PROBLEM TO BE SOLVED: To improve the noise immunity of a high frequency signal while its impedance is controlled, related to a via structure where printed boards constituting a plurality of layers are interconnected. SOLUTION: A interconnection via structure comprises a central conductor via 130 penetrating a substrate vertically and a plurality of ground vias 132, 134, and 236 so provided as to enclose it. Here, each of the ground vias 132, 134, and 236 is electrically connected to a ground electric-potential surface 210, with the central conductor via 130 insulated from the ground electric- potential with an interval 220. With this structure, the central conductor via 130 is shielded by the ground vias 132, 134, and 236, reducing the electro-magnetic interference relative to other circuit elements. By changing the diameter of the vias or the interval between vias, the interconnection structure comprising a desired impedance is provided.
Patent JP-H11117925-A (JP)
Title: Member mounting structure using screw
Inventor: TANAKA KATSUYUKI
IPC: F16B25/00
Filed: 1997-10-17
Abstract: PROBLEM TO BE SOLVED: To enable members to be screw-fastened again even when a screw hole is collapsed. SOLUTION: An internally stored fan is mounted to a frame body 25 forming an opening of a refrigerator body, and a fan cover for covering the surface of the fan is also mounted to the frame body. The fan cover is put on a bottom plate 28 of the frame body 25, and is fixed to the frame body by screwing a tapping screw inserted through an inserting hole of the fan cover into a prepared hole 96 formed in the bottom plate 28 of the frame body 25. A reserve starting hole 97 is preliminarily formed in the neighborhood of the prepared hole 96. A corresponding reserve inserting hole is formed also on the side of the fan cover, and the reserve inserting hole is closed with a thin-walled, easily breakable part.  When the internal thread of the starting hole 96 first used is collapsed, the easily breakable part is broken to open the reserve inserting hole, and the fan cover is fixed by screwing the tapping screw inserted through the reserve inserting hole into the reserve starting hole 97.
Patent JP-S62149979-A (JP)
Inventor: MIYAKE MASAAKI
IPC: D06M101/16
Filed: 1985-12-20
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-H10128988-A (JP)
Title: Cap for ink jet recording head
Inventor: KOIKE YOSHIYUKI
IPC: B41J2/165
Filed: 1996-10-28
Abstract: PROBLEM TO BE SOLVED: To reduce recording trouble due to the bubbling of ink in a cap at the time of recovery. SOLUTION: The cap is furnished with an ink inlet 13 which communicates with an ink sucking means, an atmosphere clear aperture 14 and an ink absorbing material 15, and the ink absorbing material 15 is a multilayer structure made up of more than two layers, ink and bubbles are prevented from remaining on the surface of the ink absorbing material 15 by using a water-repellent ink absorbing material 15a of the first layer on the head side. Ink is made to flow smoothly by making the pore size of the ink inlet side layer 15b smaller than the head side layer 15a.
Patent JP-H10134054-A (JP)
Title: Document preparation support device
Inventor: KAMIKO TAKASHI
IPC: G06F17/28
Filed: 1996-10-29
Abstract: PROBLEM TO BE SOLVED: To prepare the document of the other language whose degree of freedom is high by mainly using an expression in a translated example and supplementing it by the result of machine translation. SOLUTION: In the device, sentences inputted from an input part are respectively inputted to a translated sentence example retrieval part 3 and a translation part 4 and respective results are generated into a desired sentence in a compiling part 6 with copy and paste. Then, the sentence can be generated without being conscious of states before and behind a paste position by a large character/small character conversion part 7 and a space adjusting part 8.
Patent JP-H03147206-A (JP)
Title: Heat-resistant electric wire
Inventor: HASHIMOTO HIROSHI
IPC: H01B7/02
Filed: 1989-10-31
Abstract: PURPOSE:To obtain an electric wire with good heat resistance by winding the conductor with a reinforced mica tape made by integrally bonding an inorganic fiber cloth with mica using an inorganic polymer as adhesive, directly or through another heat resisting coating layer. CONSTITUTION:Borosiloxane resin coating is made by dissolving 100 weight part of the borosiloxane resin into 60wt. part of N-methyl-2-pyrrolidone as a solvent. Glass cloths 3 are impregnated with the borosiloxane resin coating so as to have adhesion quantity of the borosiloxane resin at 5, 15 and 25% after drying respectively, and a layer of mica 2 is formed and bonded to the glass cloths 3 after drying. Furthermore, the same glass cloths 3 impregnated with the borosiloxane resin as the lower layer are laminated on the layer of mica 2 and dried, so three kinds of glass reinforced mica tapes are made in thickness of 0.13mm. These glass reinforced mica tapes 4 are wound on a nickel- plated aluminum J dispersion-reinforced copper wire 5 of 1mm in diameter with lap winding of width 1/8 respectively, and thus a heat resisting electric wire 6 is provided.
Patent JP-H03147239-A (JP)
Title: Ion implantation device
Inventor: ISHIDA AKIHIKO
IPC: H01J37/317
Filed: 1989-11-02
Abstract: PURPOSE:To prevent the contamination against a wafer with the impurity by setting the area of a wafer holder at predetermined area, and holding it at the predetermined position. CONSTITUTION:The area of a wafer holder 1 is set equal to the area of a wafer 2 or less than that, and the wafer holder 1 holds the wafer 2 per each wafer so that the wafer holder 1 is not exposed to the out of the ion implantation surface. The wafer. holder 1 is fixed with an am 7 fixed to the wafer holder 1 with a space from the wall surface 6a of an ion implantation chamber. The wafer 2 is thereby shielded from the impurity 4 to be generated by the ion, which is radiated to the side wall surface of the ion implantation chamber, with the wafer holder 1, and the contamination of the wafer 2 is prevented.
Patent JP-H08118070-A (JP)
Title: Water-soluble flux
Inventor: OBA YOICHI
IPC: C07C31/18
Filed: 1994-10-27
Abstract: PURPOSE: To obtain a water-soluble flux which does not produce red eyes and has good solderability by using at least one kind of specific sugar alcohols as a base material of the flux. CONSTITUTION: At least one kind of the sugar alcohols selected from sorbitol, mannitol, erythritol, etc., are incorporated into the water-soluble flux to be used for a soldering stage. The sugar alcohols to be used as a base material are usable alone or by mixing these sugar alcohols with glycerols or polyalkylene glycols. Mixing of activators, such as methyl amine and ethyl amine, is possible as well. The specific sugar alcohols are solid at an ordinary temp. and exhibit high solubility in water. The prepn. of the sugar alcohols in the form of an aq. soln. of about 70 to 80% is possible. This thick aq. soln. mixes easily with a water-soluble org. solvent of alcohols, etc.
Patent JP-H05129337-A (JP)
Title: Manufacture of schottky-gate field-effect transistor
Inventor: MATSUZAKI KENICHIRO
IPC: H01L29/812
Filed: 1991-10-31
Abstract: PURPOSE:To obtain a method for manufacturing a Schottky-gate field-effect transistor having a small gate length by using a low-cost optical aligner. CONSTITUTION:A metal pattern 2 for gate electrode use is formed, by using an ordinary optical aligner, on a GaAs semiconductor substrate 1. A sidewall 4 is formed on the side part of the metal pattern 2 for gate electrode use. High concentration impurity regions 7A, 7B are formed by an ion implantation operation by making use of the sidewall 4 and the metal pattern 2 for gate electrode use as masks. The metal pattern 2 for gate electrode use is etched from the oblique direction by making use of the sidewall 4 as a amsk; a gate electrode 8 whose gate length LG is small is formed.
Patent JP-H09127062-A (JP)
Title: Detector for flaw of conductor
Inventor: FUJISAKI KEISUKE
IPC: G01N27/82
Filed: 1995-11-02
Abstract: PROBLEM TO BE SOLVED: To secure the detection reliability of a flaw of which size is equal to or more than a minimum length value regardless of the speed fluctuation of a material to be inspected. SOLUTION: An annular first excitation unit 4 and a second excitation unit 5 are arranged in the direction for carrying an inspection object 1. Magnetic poles formed at the positions which are opposed to each other in the carrying direction of the first excitation unit 4 and the second excitation unit 5 are made different from each other and a magnetic field in the carrying direction is generated at the position of a detection unit 6. Using a three-phase AC power supply where a frequency f changes according to a traveling speed v of the inspection object 1, magnetic field is rotated and moved in circumferential direction as f>=v/(Ls.P). The change of eddy current due to the flaw generated at the inspection object 1 is detected as the change in magnetic field by the detection unit 6.
Patent JP-H09103945-A (JP)
Title: Timepiece outer case polishing device and universal grinding device
Inventor: SHIMADA AKIRA
IPC: B24B17/10
Filed: 1995-10-09
Abstract: PROBLEM TO BE SOLVED: To provide a timepiece outer case polishing device and a universal polishing device which allow work to be controlled into equilibrium, make controlling operations simpler, and are inexpensive. SOLUTION: An initial coordinate system L is set at a position where work 21 starts making contact with a grinding wheel 1, a contact-surface coordinate system C is set while they make contact, and a work coordinate system is set at the center of the work 21. Based on the laws of force control and moment control, the control by which the homogeneous transformation sequence LAC of the contact-surface coordinate system C with respect to the initial coordinate system L is renewed whenever necessary, and the control by which the position and attitude in the contact surface coordinate system C with respect to the work coordinate system are renewed whenever necessary are separated functionally, and a homogeneous transformation sequence is originated to compute and control position, attitude, force, and moment simultaneously.  Detected values of force and moment are estimated by an observer from the driving force and position of each driving part. Further, first 11, second 13, and third 15 direct- operated joints are made to orthogonally intersect the initial coordinate system L.