baber/WOPTO huggingface dataset:
Patent JP-H0582786-A (JP)
Title: Mos-type transistor
Inventor: MOMOTA SEIJI
IPC: H01L29/78
Filed: 1991-09-24
Abstract: PURPOSE:To improve switching velocity by forming a P-N junction between a part excepting a part on a channel part of a gate electrode on a semiconductor substrate and a part on the channel part and by biasing the P-N junction by a voltage applied to a gate power supply at off-time. CONSTITUTION:A P-N junction is formed between a part excepting a part on a channel part 5 of a gate electrode 11 on a semiconductor substrate and a part on the channel part 5 and a voltage applied to the gate electrode 11 at off-time reverse-biases the P-N junction. At off-time, charge of a gate electrode 71 on the channel part 5 immediately discharges and charge of the remaining part whereto a coil 13 is connected is discharged with a time lag. Thereby, it is possible to carry out rapid discharge which is necessary for off operation of charge in the gate electrode 71 and to improve switching velocity.
Patent JP-H0799358-A (JP)
Title: Solid state-laser system
Inventor: NAGASHIMA TAKAHIRO
IPC: H01S3/06
Filed: 1993-09-29
Abstract: PURPOSE:To facilitate the laser beam transfer through the intermediary of a photoconductor by a method wherein the product of the beam waist D and divergent angle of laser beams is reduced to intensify the beam focussing for unifying the power density in beam section. CONSTITUTION:A laser resonator system is composed of laser medium 1 in rectangular slab shape, etc., held by a total reflection mirror 2 and a partial reflection mirror 3, the partial mirror reflection mirror 3 is formed so as to fluctuate the reflectance stepwise in the x direction so that the low reflectance part 3c may be adjusted to assume an attitude having a gradient slightly keeping the part 3c away from the end face of the laser medium as well as the reciprocating path in the z direction inside the resonator system of laser beams L may be taken out as the laser beam LB from the low reflectance part 3c of the partial reflection mirror 3 while making the reciprocating path gradually slip in the x diraction.
Patent JP-H04122891-A (JP)
Title: Nuclear reactor containment
Inventor: MATSUURA MASAYOSHI
IPC: G21C15/18
Filed: 1990-09-14
Abstract: PURPOSE:To achieve higher workability with easier access to a liquid layer pat of a suppression pool by an operator by dividing the area into two chambers with a heat transfer wall to make an exhaust pipe of a relief safety valve communicate with one of the chambers. CONSTITUTION:In a normal plant operation, when a pressure of reactor pressure vessel rises for some reason, a radioactive steam flows into an outer chamber 6a of a suppression pool from an exhaust pipe 4 through a main steam relief safety valve. Even besides this abnormal rise in pressure,the case also can be considered where a reactor steam flows into a suppression pool outer chamber 6a with a leakage of the main steam relief safety valve. The radioactive pollution by the inflow of the reactor steam is confined to the outer chamber 6a and the inner chamber 6b is kept off the radioactive pollution leaving the water clean. Thus, in the normal operation, a low pressure system ECCS and a high pressure system ECCS using a pool water of the inner chamber 6b as water source are protected from radioactive pollution.
Patent JP-S60124638-A (JP)
Inventor: YOAHIMU TERUMAA
IPC: C08L15/00
Filed: 1984-11-19
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-H05312751-A (JP)
Title: Manufacture of gas detection element
Inventor: KANAMORI MASAAKI
IPC: G01N27/12
Filed: 1991-08-28
Abstract: PURPOSE:To establish the manufacturing method of a sensor wherein it can detect ethylene gas or the like and its detection sensitivity is increased by a method wherein an organic tin compound/oxygen mixes gas having a specific volume ratio is used and a transparent amorphous thin film is former on an insulating substrate by means of a plasma CVD method or the like. CONSTITUTION:An organic tin compound/oxygen mixed gas at a volume ratio of 0.1 to 10 is used; a transparent amorphous thin film 13 is formed on an insulating substrate 11 by means of a plasma CVD method. After that, the thin film 13 is heated in the air at a temperature of 400 deg.C or higher; it is oxidation-treated. At this time, before or after the oxidation treatment of the thin film 13, a comb-shaped electrode 12 is formed on the thin film 13. Tetramethyltin, tetraethyltin, tetra-n-butyltin, dibutyltin acetate or the like is user as an organic tin compound. When the volume ratio of the organic tin compound to oxygen is 0.1 or lower, the formation speed of the film becomes extremely slow and it lacks in practicability. When it is 10 or higher, the sensitivity of the title element cannot be enhanced.
Patent JP-S62103813-A (JP)
Title: Thin film magnetic head
Inventor: MAKINO NORIFUMI
IPC: G11B5/31
Filed: 1985-10-31
Abstract: PURPOSE:To improve the working accuracy by forming the plane shape of the lower part magnetic core larger than the upper part magnetic core and the conductive material and dividing mutually the adjoining lower part magnetic core. CONSTITUTION:A lower part magnetic core 2 composed of plural metallic magnetic materials with a large Bs formed on a substrate 1 consisting of the non-magnetic material is separated for respective elements by the means such as the mask vapor deposition and the etching, and the plane shape of the lower part magnetic core is worked so as to come to be the shape including the winding part of a conductive layer 5. On the lower part magnetic core 2, the patterns of the conductive layer 5 and an upper part magnetic core 6 are formed, and the area of the lower part magnetic core 2 is large, and therefore, the core 2 is not influenced by the step difference of the substrate 1 and the lower part magnetic core 2 at the time of forming the pattern. Thus, the crosstalk between adjoining elements can be decreased and the fine coil wiring can be processed with a good accuracy.
Patent JP-2001066670-A (JP)
Title: Camera with red-eye softening function
Inventor: SUZUKI HIROSHI
IPC: G03B15/05
Filed: 1999-08-30
Abstract: PROBLEM TO BE SOLVED: To eliminate need for arranging a space for radiating heat or a heat liberation member near a light source for softening a red eye and to obtain a higher red-eye softening effect without obstructing the miniaturization of a camera. SOLUTION: This camera is provided with a 1st timer means (#17) starting the counting of time at the same time that the light source for softening a red eye is started to be turned on and counting 1st prescribed time for continuously turning on the light source for softening a red eye, a 2nd timer means starting the counting of time at the same time that the light source for softening a red eye is turned off and counting 2nd prescribed time for keeping a turning- off state of the light source for softening a red eye and a control means (#13-#16)  inhibiting the turning-on of the light source for softening a red eye till the 2nd prescribed time is counted by the 2nd timer means even when 1st- stage operation of a release member is executed again after the light source for softening a red eye is turned on in the 1st prescribed time counted by the 1st timer means in response to the 1st-stage operation of the release member.
Patent JP-S61120219-A (JP)
Title: Constant voltage circuit
Inventor: SAEKI TAKAHARU
IPC: G05F3/26
Filed: 1984-11-16
Abstract: PURPOSE:To obtain a constant voltage circuit small in dependence on temperature by combining a band gap type constant current circuit and the base-emitter voltage of a transistor. CONSTITUTION:A constant voltage circuit consists of a constant current source 1, npn transistors TR 4 and TR 10, TR 7 and TR 8 having the equal emitter area, a TR 11 having a large emitter area and resistances 9 and 12. Then the corrector current IC of the TR 11 is equal to KT.ln(n)/R3, where (n) and R3 show the emitter area ratio between the TR 10 and TR 11 and the resistance value of the resistance 12. At the same time, the output voltage does not substnatially depend on the current value of the source 1 and is set at a fixed level. The temperature coefficient can be set at zero by a selecting properly the ratio between resistance 9 and 12.
Patent JP-2001064496-A (JP)
Title: Resin composition and its molding process
Inventor: NAKAI TAMAKI
IPC: C08L51/06
Filed: 1999-08-30
Abstract: PROBLEM TO BE SOLVED: To obtain a thermoplastic polyester resin composition enabling the improvement of its processing property and its calendaring process by incorporating a specific polyolefin resin and/or a montanoic acid wax in it for reducing its melt adhesivity. SOLUTION: This objective composition is obtained by incorporating (A) a thermoplastic polyester resin, (B) (i) a polyolefin resin obtained by grafting a side chain with a different monomer form that constituting its main chain and/or (ii) a montanoic acid wax. As the component A, a polyethylene terephthalate resin (as an amorphous polyethylene terephthalate copolymer), etc., can be cited. As the component (i), a low-density polyethylene resin grafted with a polymethyl methacrylate or a polyacrylonitrile-styrene copolymer can be cited. As the component (ii), the montanoic acid (ester wax), etc., can be cited.
Patent JP-H0693988-A (JP)
Title: Dry screw compressor
Inventor: TSURU SEIJI
IPC: F04C18/16
Filed: 1992-09-11
Abstract: PURPOSE:To suppress rusting of two rotors of one being a female rotor and the other being a male rotor and prevent locking of the two rotors of the female and male rotors owing to rusting by forming a film of a tetrafluoroethylene perfluoroalky vinyl ether copolymer (PFA) on the surface of each of the two rotors of the female and male rotors. CONSTITUTION:A dry screw compressor is supported by means of a bearing so that female and male rotors 2 and 1 having helical recessed tooth shape and a protrusion tooth shape, respectively, are rotated in a state to be mated with each other in a non-contact state through the medium of a synchronous gear. In this case, a film of a tetrafluoroethylene perfluoroalkyl vinyl ether copolymer (PFA) is formed on the surface of each of the female and male rotors 2 and 1. In formation of the film, the temperatures of, for example, the lobes 3 of the female and male rotors 2 and 1 are increased for degreasing. Coarsening treatment 4 is applied on the surface of each of the female and male rotors 2 and 1 to apply primary coating 5. Consecutively, after drying is effected to apply a PFA coating agent 6, burning is executed.
Patent JP-H0294216-A (JP)
Title: Covering device for electric appliance
Inventor: MOTOKI YOSHIAKI
IPC: H01H43/02
Filed: 1988-09-28
Abstract: PURPOSE:To make it possible to release a detent condition easily with a single hand by forming a U-shaped detent device in a specified shape. CONSTITUTION:A terminal cover 9 with its U-shaped detent arrangement is engage-stopped with a main body 1. The detent arrangement comprises an elastic body having a detect section 102 of a thick cross section and a detent section 103 of a thin cross section. The engagement is effected with the elastic deformation of both a hook-shaped detent section 104 of the thin cross-sectional detent section 103 and a projection 1B of the main body. The height of a wall surface 1D on the U-shaped base portion side 101 of the detent arrangement and the height of the top surface 1E of the main body are formed lower than the projection 1B of the main body. The detent arrangement is released from engagement by a single action of rotation about a pivot 105 when the tip of the thin detent section 103 is laterally pressed with a screwdriver for example in the lateral direction F.
Patent JP-H1151554-A (JP)
Title: Hermetic sealing method for thermally insulating door
Inventor: MATSUMOTO HISAO
IPC: F25D23/02
Filed: 1997-08-04
Abstract: PROBLEM TO BE SOLVED: To prevent intrusion of outer air through the gap of an outer door due to negative pressure in a cold source storage room at the time of operating a snow ice air conditioning system. SOLUTION: In a hermetic seal function for blocking intrusion of outer air through the gap of a conventional structure door 5 at a large opening in the outer wall for throwing snow and ice by the negative pressure in a cold source storage room at the time of operating a snow ice air conditioning system, the outer wall part of the cold source storage room is divided into a door of thermal insulating structure and a hermetic sealing unit thus blocking intrusion of outer air using a conventional door. An outer frame 1 at the opening, the thermal insulating door 5 and a hermetic sealing sheet winding holder 8 at the upper of the door are constructed such that a hermetic sealing sheet 7 can be pulled down. The hermetic sealing sheet 7 is provided with a fixing face in order to settle the sheet stably.  The hermetic sealing sheet 7 is then pulled down and the periphery thereof is secured by a magnet belt 9. Consequently, a negative pressure is produced in the storage room and the sheet 7 is sucked to the gap and secured by the magnet belt 9 thus sealing the door hermetically. Finally, a door protection shutter is fixed and a winding holder 2 is disposed at the upper outer part.
Patent JP-H0555621-A (JP)
Title: Photodetector
Inventor: SHIBUYA YOSHIKI
IPC: H01L31/10
Filed: 1991-09-24
Abstract: PURPOSE:To obtain a stable output by providing two anodes and two cathodes respectively in a single photodetector and wiring them so that light receiving currents flowing in photodetector parts formed of them flow in opposite directions to each other. CONSTITUTION:Two N-type diffusion layers 2 are formed on two opposite corners in an approximately square N-epitaxial layer 3 formed on a semiconductor substrate 4, while two Ptype diffusion layers 1 are formed at the center so that light receiving parts come to the center. These are respectively connected by Al wires to provide two output terminals VA, VB. Connection is made between a first anode and a second cathode and between a first cathode and a second anode, while they are respectively connected to the terminals VA, VB. Then resistance according to specific resistance of the N-type epitaxial layer 3 occurs between the two N-type diffusion layers 2 to be a single light receiving element of an equivalent circuit. Thus a stable output can be obtained.
Patent JP-H1090613-A (JP)
Title: Multi-beam scanner
Inventor: TAKAHARA TAMANE
IPC: H04N1/113
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To provide a multi-beam scanner capable of constituting a sensor with the less number of photodetectors and surely and rapidly performing positioning control of a laser beam even when the laser beam is shifted remarkably on the sensor. SOLUTION: A part of the laser beam separated by a half mirror 4 from an optical path facing from semiconductor diodes 1a, 1b to a photosensitive drum 7 is made incident on a sensor 8. The sensor 8 is constituted of three photodetectors one more than the number of pieces of the laser beams, and these photodetectors are arranged side by side at a pitch optically equivalent to the beam pitch of the laser beams on the photosensitive drum 7 surface. A positioning control part 9 controls deflection angle actuators 3a, 3b so that a difference between the received light quantity of the photodetectors adjacent to each other becomes zero based on outputs from the photodetectors, and adjusts deflection angles of lenses 2a, 2b to make the beam pitch of the laser beam on the photosensitive drum 7 surface become a prescribed value.
Patent JP-H0991427-A (JP)
Title: Image processor, image check device and image processing method
Inventor: YAMAGISHI KENJI
IPC: G06T7/00
Filed: 1995-09-21
Abstract: PROBLEM TO BE SOLVED: To surely discriminate a non-defective product from a defective product even when there exists dispersion or the like on a check object face by discriminating the acceptance of the check object based on quantized data and reference data set in advance. SOLUTION: A pallet 1 is carried up to a check position by a pallet carrying conveyor 2 and four lighting devices 4 lights a check face 3. First - fourth cameras 7-1 -7-4 pick up an image of corresponding sub check faces 5-1 -5-4 in parallel with the above to provide an output of 1st-4th image pickup signals 6-1 -6-4 to an image processor 8. The image processor 8 sets a reference binarization level being a reference quantization level to each of a half area of each front edge board and quantizes image pickup signals corresponding to each check area based on the set reference binarization level. As a result, the acceptance of the pallet 1 is discriminated based on the quantized image pickup signal and the preset reference value. Thus, the acceptance is discriminated while suppressing the effect of color dispersion or the like.
Patent JP-H1159057-A (JP)
Title: Ballpoint pen
Inventor: KOBAYASHI SEIICHI
IPC: B43K7/02
Filed: 1997-08-26
Abstract: PROBLEM TO BE SOLVED: To prevent reverse or forward flow of ink by arranging a follower filled with white pigment ink mixed so as not to impair fluidity and following to consumption of ink at a rear end of the ink. SOLUTION: The ballpoint pen comprises a tip 12 having an end ball 13 and pressed to be brought into close contact with an inner edge of a ball embracing part 12a at an end of the tip 12 at normal time and released from the close contact state at the time of writing, and a follower 18 having an ink containing tube 16 provided rear of the tip 12 and containing at least white pigment such as titanium oxide, polymer hollow fine particles or the like and gelatinizing agent and filling white pigment ink mixed to prevent sedimentation of the pigment without impairing fluidity and following to the ink in the case of consuming the ink at a rear end of the ink. In the case of the ink having a viscosity of 10000 cps (by an E type viscometer at 1 r.p.m. and 25 deg.C) or less, there exists a tendency of sedimentation of the pigment.  In the case of the ink having 50000 cps or more, a problem arises at the time of discharging the ink. Hence, the viscosity of the ink is set to 10000 to 50000 cps.
Patent JP-H1088216-A (JP)
Title: Method for desulfurizing molten iron
Inventor: YAMADA KENZO
IPC: C21C1/02
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To improve the profitability of desulfurization of molten iron without bringing about the trouble of retarding reaction by supplying MgO source after supplying Al source into the molten iron and simultaneously, supplying lime and fluorite. SOLUTION: In the desulfurization of the molten iron, e.g. in the case of using an injection method, the Al source of pure Al, aluminum scrap, etc., is placed beforehand into a molten iron ladle 1 before receiving the molten iron 2. Into the molten iron 2, a lance 4 is vertically inserted and the powdery or granular MgO source 3 is supplied into the molten iron 2 dissolving Al through the range 4 and injected to the deep part of the molten iron 2 to undergo desulfuization. Or, simultaneously with the supply of MgO source, the lime or lime stone and the fluorite are supplied to undergo the desulfurization of the molten iron 2. By this method, MgO can effectievly be dispersed and mixed into the molten iron 2 enriching the Al to improve the treating capacity of the desulfuriation.
Patent JP-H1183036-A (JP)
Title: Electric stove
Inventor: ASAI AKIHIKO
IPC: F24C7/06
Filed: 1997-09-09
Abstract: PROBLEM TO BE SOLVED: To improve an anti-fire safety characteristic of an electric stove used for taking heat inside a house when the electric stove is covered by an ignitable material. SOLUTION: A high temperature radiation heater 4 is used as a heat generating member, and a super-increasing temperature preventive device 6 is arranged between a reflection plate 2 and a heat shielding plate 3. When an opening surface of the reflection plate 2 is covered by an ignitable material or the like, increasing in temperature of the reflection plate 2 by itself is detected by the super-increasing temperature preventive device 6, and then an electrical energization for the high temperature radiation heater 4 is stopped faster than that of ignition of the ignitable material. In addition, openings 9a, 9b are formed at an upper part and a lower part of the main body case and air is circulated in a heat radiation passage 10 arranged between the heat shielding plate 3 and the reflection plate 2, thereby making stable a temperature of surrounding atmosphere in the super-increasing temperature preventive device 6 and then becoming possible to attain an electrical stove showing no erroneous operation in its safety device.
Patent JP-H1085736-A (JP)
Title: Liquid treatment device
Inventor: OHASHI YUKIO
IPC: B01J35/02
Filed: 1996-09-13
Abstract: PROBLEM TO BE SOLVED: To provide a liquid treatment device of good treatment efficiency and easy maintenance. SOLUTION: A liquid treatment device is provided with a casing 1 having an inflow section 2 and an outflow section 3 and a dispersion plate 5 set in the inflow section 2 inside the casing 1 and dispersing the flow of liquid flowing in from the inflow section 2 into the casing 1. Fluidized bed particle groups 7 composed of quarts glass spherical bodies carrying a photocatalyst substance on the surfaces and forming a fluidized bed by the flow of the liquid having passed through the dispersion plate 5 are stored in the casing 1. Photo-emission devices 4 for emitting the light to the fluidized bed particle groups 7 are provided on the sections corresponding to the fluidized bed 5 in the casing 1.
Patent JP-S61122631-A (JP)
Title: Illuminating device for flash
Inventor: SATO TOSHIHIKO
IPC: H05B41/32
Filed: 1984-11-19
Abstract: PURPOSE:To secure an electric power for a flash photographing by inhibiting automatically an illuminating operation executed before photographing, in case the power supply voltage has dropped. CONSTITUTION:When a power supply voltage VC is high enough, comparators CP1-CP3 output '0', a transistor Tr1 turns on, and a lamp 5 illuminates continuously an object. When the power supply voltage VC drops, and the comparator CP1 outputs '0', and the comparators CP2, CP3 output '0', the lamp 5 is lighted intermittently. When the power supply voltage VC further drops, and the comparators CP1, CP2 output '1', and the comparator CP3 outputs '0', a lighting period of the lamp 5 is lowered. When the power supply voltage VC, and the comparators CP1-CP3 output '1', the lamp 5 is held in a non-lighting state.
Patent JP-S61122667-A (JP)
Title: Fixing device for picture formation device
Inventor: TAKAHASHI YASUSHI
IPC: G03G15/20
Filed: 1984-11-19
Abstract: PURPOSE:To apply proper polish to a picture by softening or melting the surface of a fixed picture image when a treating sheet is tightly adhered to the fixed picture image, and after hardening the fixed picture image again, peeling off the treating sheet from the surface of the fixed picture image. CONSTITUTION:A picture image passed between rollers 11, 12 is fixed to a recording material 4. The recording material 4 and the picture image fixed to the material 4 are held and carried between rollers 21, 22, covered with a smoothing sheet 29 and heated and pressed. At that time, the sheet 29 is uniformly fixed to the recording material 4 and the picture image 5 and toner grains are melted and united. Then, the material 4 and the toner image 5 are cooled by air blow from a cooling fan 33 at a temp. lower than the toner softening point and the recording material 4 is separated from the sheet 29 by a separation belt 30.