baber/WOPTO huggingface dataset:
Patent JP-2001093319-A (JP)
Title: Surface light source device and liquid crystal display using it
Inventor: SUGA YOSHINORI
IPC: F21Y103/00
Filed: 1999-09-20
Abstract: PROBLEM TO BE SOLVED: To provide a surface light source device capable of forming a light takeoff mechanism on a light guide plate in a simple and well-productive manner, fine pitch patterning possible and easy to manufacture with high brightness, and provide a liquid crystal display using it. SOLUTION: A surface light source device comprises a light source 12 arranged at at least one side end of a light guide plate 11 with one surface as a light emission plane and a reflector 13 arranged on the light source 12 to covet the same, whereby a light emitted from the light source 12 is reflected directly from the reflector 13 and injected to the light guide plate 11 and the injected light is scattered by a light takeoff means 16 and emitted from the light emission plane of the light guide plate 11. The light takeoff means 16 is constructed in an ink printing pattern, the printing pattern being formed by screen printing using a metal mask having an opening, equivalent to the pattern of the light takeoff means, in a metal plate.
Patent JP-2001093740-A (JP)
Title: Air-core reactor and methods of disassembling and transporting
Inventor: MIYAWAKI FUMIHIKO
IPC: H01F27/02
Filed: 1999-09-20
Abstract: PROBLEM TO BE SOLVED: To provide an air-core reactor and its disassembling and transporting means within can greatly reduce the transportation mass. SOLUTION: This air-core reactor is composed of a frame-shaped magnetic shield A and a coil B, which is arranged in the magnetic shield A. The magnetic shield A is composed of an upper horizontal part 1 and a lower horizontal part 2, and a right vertical part 3 and a left vertical part 4, which are formed by stacking silicon steel sheets and rectangular cross section. The upper horizontal part 1 and lower horizontal part 2, and right vertical part 3 and left vertical part 4 are integrated into square-shaped units 6a and 6b. Those units 6a and 6b are provided so that they can be split into two, in the stacking direction of the silicon steel belts. The split units 6a and 6b are put in a transport tank 7 and are transported.
Patent JP-H10112564-A (JP)
Title: Laser diode driver
Inventor: KAMEI TAKAHIRO
IPC: H01S5/042
Filed: 1996-10-07
Abstract: PROBLEM TO BE SOLVED: To properly control a modulated current and a bias current for drive of a laser diode. SOLUTION: The optical signal L of a laser diode 13 driven with a modulated current MC and a bias current BC is detected with a photodiode 14, and a detection current SC is given to a bias part 15. The bias part 15 is controlled with the modulation signal MS, and when the modulation signal MS is 'H', it bypasses a part of the detection current SC to GND at earth potential, and when the modulation signal MS is 'L', it outputs all of the detection signal SC to a current voltage converter 16. Hereby, the variation range of the detection signal SC given to the current voltage converter 16 becomes narrow, and accurate current and voltage conversion can be performed. It becomes possible to get an accurate peak value and a bottom value, and the modulated current MC and the bias current BC can be properly controlled.
Patent JP-H0651406-A (JP)
Title: Apparatus for regenerating picture on unexposed photographic film from transparent manuscript by contact
Inventor: ARUBEERU BEE BISAAJIYU
IPC: G03B27/20
Filed: 1991-10-15
Abstract: PURPOSE: To provide a contact printing device forming an excellent image from a transparent original, specially, a negative film or a slide. CONSTITUTION: The transparent original 2 is set on the window 4 of a supporting body 7 having the proper window 4. Then, a photographic film or a photosensitive material 1 such as a film is superposed on the original 2 so as to be closely brought into contact with it. The original 2 and the material 1 are pressed by a cover material 14 making a close contact state between them excellent from the upper part. By a pressing material 6, the material 1 is pressed to the original 2 from the upper part of an elastic airtight sheet 11 by the action of a spring 13. Then, an airtight state is kept by an O ring 10 because the material 14 is interposed between the supporting body 7.  When air between the original 2 and the material 1 is evacuated through an orifice 19, a buffer chamber 17 and an exhaust pipe 18, the original 2 is pressed to the material 1 by air pressure and the degree of contact is enhanced. Then, the an exposure action is executed from the window 4 by proper light quantity.
Patent JP-H03207124-A (JP)
Title: Convergion device of electric input signal to electric dc signal proportional to electric input signal
Inventor: ANDORE ERU
IPC: H03M1/68
Filed: 1990-10-05
Abstract: PURPOSE: To improve the conversion accuracy of a device for converting the binary signal into the proportional DC signal by assigning the component corresponding to an actual quantization residue to each pulse-width modulated pulse period. CONSTITUTION: A periodical pulse train I1 which is pulse-width modulated with the quantized value corresponding to the limited resolution of the quantity of an input while ignoring quantization residues is supplied from a digital pulse width modulator 24 having limited resolution. On the other hand, another periodic pulse train I2 which is pulse-width modulated with the sum of the quantized value corresponding to the limited resolution and the product of the quantized value and a preset coefficient is supplied from a pulse width modulator 40. Then the pulse trains I1 and I2 are alternately connected to an averaging circuit 34 by switching so that ratio of the number of the connecting pulses of the pulse train I2 to the total number of connecting pulses becomes equal to the inverse of the preset coefficient. Therefore, high conversion accuracy is obtained.
Patent JP-H1088048-A (JP)
Title: Luminous print and method for printing the same
Inventor: NAKAJIMA HIROYUKI
IPC: C09D11/033
Filed: 1996-09-18
Abstract: PROBLEM TO BE SOLVED: To prepare a luminous print having a high luminous property. SOLUTION: This luminous print comprises a luminous printed layer 4 printed on the front surface side of a printing object, wherein the luminous printed layer 4 comprises a layer, of a homogeneous mixture of a luminous pigment with a binder, screen-printed using a doctor blade and a squeegee, the luminous pigment has a particle diameter D50 of 22 to 35μm and a particle diameter D90 of 58 to 80μm and is contained in an amt. of 50 to 80wt.% based on the total amt. of the binder and the luminous pigment, and the printed layer has a thickness of 50 to 150μm. Higher packing ratio of the luminous layer permits the presence of satisfactorily coarse luminous pigment particles.
Patent JP-H07122000-A (JP)
Title: Data detecting system for optical disk
Inventor: FUJIWARA TSUNEO
IPC: G11B7/005
Filed: 1993-10-26
Abstract: PURPOSE:To obtain a data detecting system for an optical disk in which an error of detecting data is reduced as much as possible and which can reproduce digital data recorded in high packing density. CONSTITUTION:A reproducing signal from an optical disk in which data so converted that a minimum inverting interval becomes two channel bits or more is recorded is input to a PR (1, 2, 1) equalizer 105 through a capacitor 101, etc., and equalized to PR (1, 2, 1) characteristics. The signal equalized to the PR (1, 2, 1) characteristics is A/D-converted by an A/D converter 106. Data of the converted signal is so calculated as to be most accurate according through which of a pass of a trellis diagram it is advanced in its state transition by a Viterbi decoder 107 using characteristics of the PR (1, 2, 1) characteristics and characteristics in which a minimum inverting interval is two channel bits or more, and data corresponding to the most accurate pass is decoded.
Patent JP-H09218844-A (JP)
Title: Data structure having dynamic function replacement
Inventor: MAIKERU AARU KURAUSU
IPC: G06F9/445
Filed: 1996-10-08
Abstract: PROBLEM TO BE SOLVED: To facilitate an extension or an option by using a function pointer allowing STEREAMS to execute modules and driver functions. SOLUTION: In a computer system 11 supplying a bi-directional data bus 13, a data structure 10 is executed between a module 14 to be an intermediate processing element to be dynamically added or moved with a user process, a data rate and a device driver 15. The device driver 15 is the resident in a system kernel 18 and controls a device 16 to transmit data between the kernel 18 and the device 16. The data written by the user process advances in a downstream toward the driver. The data received from the device 16 by the device driver 15 advances in an upstream to be retrieved by a user 20.
Patent JP-H05266987-A (JP)
Title: Electrodeless high luminance discharge lamp coupling structure with integrated matching circuit
IPC: H05B41/02
Filed: 1992-09-10
Abstract: PURPOSE: To reduce the dependence on fine variation in production and provide a compact tuning circuit network by integrally forming an impedance matching circuit network and a coupling structure on the same printed circuit board. CONSTITUTION: An assembly has a magnetron power source 10 generating an RF signal at 915MHz, Impedance of an incoming signal is matched with the impedance of a lamp by using a stub tuner. The impedance of the lamp 14 and that of a spiral applicator 15 are determined by measuring the impedance indicated with the stub tuner 12 on the reference surface 16 and suitably finding the complex conjugate of the impedance to an input terminal of the applicator. A power signal to the lamp is divided on the reference surface 16 so that a micro filament is equal to about 1/2 wave length. The extending part of half- wave length constitutes a balun impedance transformer and reduces 4:1 impedance. A lamp capsule 14 contains Hg, NaI, ScI3 salts.  A coil 15 has the same rotating direction, the resistance end of a coupler has a gap of about 1/4 of compression wave length, and the capsule 14 is coaxially arranged between the couplers.
Patent JP-H10112317-A (JP)
Title: Nonaqueous electrolyte secondary battery
Inventor: NITTA YOSHIAKI
IPC: H01M10/05
Filed: 1996-10-08
Abstract: PROBLEM TO BE SOLVED: To prevent needle crystal with high capacity from being created on the electrode surface in charge and discharge reaction, by using as a negative electrode metal oxide which mainly contains lithium-containing metal oxide and has a specific oxidation number of lithium in active material solid. SOLUTION: Lithium-containing metal oxide in which an oxidation number Z of lithium in active material solid is in the range of 0.5<=Z<=1.0 in electrochemical oxidation-reduction interaction is used as a negative electrode 5. It is desired that lithium-containing metal oxide is represented by a general formula Li2(1+x) M2 O4 (M is one or two transition metals, and x is in the range of 0<x<=3), and the oxidation number Z of lithium in active material solid is in the range of 0.5<=Z<=1.0. In this case, Z is (x+3)/[3(x+1)]. Thus, using the lithium- containing metal oxide as the negative electrode 5 prevents needle crystal with high capacity from being created on the electrode surface in charge and discharge reaction.
Patent JP-H08127089-A (JP)
Title: Multilayered plastic fuel tank
Inventor: AKAGAWA YOSHIFUMI
IPC: C08K7/00
Filed: 1994-10-31
Abstract: PURPOSE: To provide a multilayered plastic fuel tank excellent in fuel impermeability and impact resistance and capable of being recycled suitably. CONSTITUTION: In a fuel tank, a high density polyethylene layer and a polyamide layer are laminated through a high density polyethylene layer modified by unsaturated carboxylic acid or a derivative thereof. The polyamide layer contains 100 pts.wt. of a polyamide resin and 0.2-5 pts.wt. of laminar silicate with a side length of 0.02-1μm and a thickness of 6-20Å. Laminar silicate is uniformly dispersed in the polyamide resin so as to be scattered at an interval of 20Å or more.
Patent JP-2000101988-A (JP)
Title: Video display device
Inventor: SUZUKI MASATO
IPC: H04N7/18
Filed: 1998-09-21
Abstract: PROBLEM TO BE SOLVED: To allow an operation to easily and smoothly perform monitoring work. SOLUTION: A camera controller 3 controls zoom quantity with respect to an ITV camera 1 and also controls horizontal and vertical wobbling movements via a camera drive device 2. A process data processor 4 discriminates a device projected currently on the camera 1, based on a control signal from the controller 3 by referring to a position correspondence relation data table 5. Then, the display data corresponding to the discriminated device are outputted among various process data which are inputted from a plant. An image processor 6 outputs a data mixed video signal obtained by mixing the display data with a video signal from the controller 3.
Patent JP-H01108512-A (JP)
Title: Manufacture of optical fiber tape
Inventor: KINOSHITA AKIRA
IPC: G02B6/44
Filed: 1987-10-22
Abstract: PURPOSE:To eliminate the need of a complicated work condition and to simply and at a low cost manufacture an optical fiber tape by aligning and leading in plural optical element fibers to a belt in which a recessed groove has been formed on the surface of the belt running in the prescribed direction, and thereafter, injecting as one body a liquid resin and hardening it. CONSTITUTION:A recessed groove 5 of the same dimension as the dimension of an optical fiber tape is formed on the surface of a belt 4 which is extended to two pieces of pulley 2 and pulley 3 and runs in the prescribed direction, and plural pieces of optical element fibers 6 which have been aligned in a shape of a plane are led therein. Also, from a resin supply tank 7, a liquid resin is supplied and inserted through a hardening furnace 8, and hardened. Accordingly, it will suffice that the shape as it is of the optical fiber tape 1 is formed as a recessed groove on the surface of the belt, and draw-thinning generated in the extrusion system using a die and a nipple is eliminated. In such a way, the complicacy such as a change of a work condition caused by a difference of a manufacturing speed is eliminated, the shape is also improved, and since the belt is used, the cost of equipment also becomes low.
Patent JP-H0658331-A (JP)
Title: Linear bearing slider and its manufacturing method
Inventor: TERAMACHI HIROSHI
IPC: F16C29/00
Filed: 1991-09-19
Abstract: PURPOSE:To give sufficient mechanical rigidity to a slider by equipping, a thin plate type ball transfer plate in which a loading ball groove is formed, and a thin plate type attaching plate which has a part to attach a mobile body, and molding both plates in one body by resin or die-cast alloy, etc. CONSTITUTION:A slider 1 consists of a ball transfer plate 6 in which a loading ball groove 61 is formed and an attaching plate 7 which has a part 71 to attach a mobile body. As the attaching plate 7 has high functional rigidity to fix a mobile body, the attaching plate 7 functions as stiffener of the slider 1, when it is molded as mono body with the ball transfer plate 6 by molding material such as resin or die-cast alloy, etc. Consequently, it is possible to give high rigidity to the slider 1, even if quality of the molding material is relatively soft. If the attaching plate 7 and the ball transfer plate 6 are produced in one body by insert molding, it is possible to easily produce many different kinds of bearings in the shape of the part to attach the mobile body by changing only shape of the attaching plate 7.
Patent JP-2000092990-A (JP)
Title: Device for transferring stacked box
Inventor: GOTO YOSHIAKI
IPC: A01G9/00
Filed: 1998-09-21
Abstract: PROBLEM TO BE SOLVED: To provide a device for transferring stacked boxes, capable of simply, rapidly and individually separating the stacked box at the highest stage from the stacked boxes and then smoothly transfer the separated box to a multi- staged receiving member. SOLUTION: In this device for transferring the stacked boxes N, a stacked box-separating device 91 capable of being upward or downward moved with respect to the stacked boxes N is disposed and is used for taking up the highest box N of the stacked boxes N and then transferring the box N to a multi-staged receiving member 79. Therein, the stacked box-separating device 91 is stopped at a position corresponding to an arbitrary receiving member 80A among the multi-staged receiving members 80A and then delivers the box N onto the receiving member 80A.
Patent JP-S63121696-A (JP)
Title: Conductor roll for electroplating
Inventor: HANAGIRI SEIJI
IPC: C25D7/06
Filed: 1986-11-10
Abstract: PURPOSE:To produce a conductor roll for electroplating having superior corrosion and wear resistances by coating the surface of a roll with a cermet layer consisting of electrically conductive ceramics and a corrosion resistant alloy in a specified ratio. CONSTITUTION:The surface of the roll is coated by thermal spraying with a cermet layer consisting of 15-80vol% electrically conductive ceramics and the balance corrosion resistant alloy. ZrN, etc. may be used as the electrically conductive ceramics and an Ni-Cr-Al-Y alloy, etc. as the corrosion resistant alloy. Thus, a conductor roll having improved corrosion and wear resistances is obtd. and the service life is prolonged.
Patent JP-S63121692-A (JP)
Title: Method for activating base material of ic lead frame
Inventor: AOKI KATSUHIRO
IPC: H01L21/48
Filed: 1986-11-10
Abstract: PURPOSE:To activate the surface of a base material of an IC lead frame consisting of a 42 alloy material by subjecting said base material to a cathodic electrolysis treatment in an aq. soln. contg. potassium cyanide, etc. CONSTITUTION:The 42 alloy material (for example, Fe-42% Ni alloy) is cut to the shape of the IC lead frame and is degreased by cathodically electrolyzing said material in about 50g/l aq. soln. of caustic soda, etc. The material is then chemically polished by immersing the same into an acid soln. such as hydrogen peroxide soln.; thereafter, the material is neutralized with an alkali by immersing the same with about 1% aq. soln. of an alkali such as caustic potash. The pretreated base material is subjected to the cathodic electrolysis treatment for about 1-300sec at about 1-30 deg.C and about 0.1-10A/dm<2> current density in the aq. soln. contg. about 1.0-300g/l at least one of the potassium cyanide, caustic potash, sodium EDTA and sodium gluconate in the above-mentioned manner. The IC lead frame having high cleanliness is thus produced without polluting the working environment.
Patent JP-H06114222-A (JP)
Title: Bag filter
Inventor: KATSUI SEIZO
IPC: B01D46/02
Filed: 1992-10-06
Abstract: PURPOSE:To decrease the feed rate of a chemical by connecting a dust contg. gas introducing duct to a contraction part, below a hopper, being a connecting part to a dust discharge device. CONSTITUTION:A chemical 5 is pneumatically conveyed into a nozzle 4 and mixed with combustion gas 3 in a waste gas duct 2 to form waste gas 31 which enters a contraction part 15 and rises in a hopper chamber 13 to reach a filter chamber 11. Since the filtration velocity at filter cloths 12 is made slow to the order of 0.017m/sec at most, the gas velocity is rapidly lowered until the waste gas 31 reaches the surface of the filter cloths 12. Therefore, the chemical 5 accompaning the combustion gas 3 is stalled and is apt to separate and fall from the waste gas 3 until it reaches the surface of the filter cloths 12. Since the waste gas duct 2 is connected to the contraction part 15 at the lower end of the hopper chamber 13, however, the waste gas 31 rises and the separated chemical 5 is blown up again to reach the surface of the filter cloths 12. Therefore, the chemical 5 is sucked on the surface of the filter cloths 12 and separated from the waste gas 31 to be stuck on the surface of the filter cloths 12 by filtration action of the filter cloths 12.
Patent JP-S63120867-A (JP)
Title: Differential pass engine
Inventor: YONEDA SHIN
IPC: F03B17/04
Filed: 1986-11-10
Abstract: PURPOSE:To save energy, by a method wherein, in a differential pass engine which generates a power by guiding the pressurizing pressure of fluid to plural cylinders having different pressure collecting areas to generate a power, through utilization of the lever action of a rack gear serving as a fulcrum, a difference in a thrust is produced. CONSTITUTION:When an outgoing electromagnetic valve 22 is turned ON, pressure liquid from a pressure reservoir tank 24 is fed to the outgoing pressurization side of cylinders 7-9 through an outgoing presurizing circuit 3, and a piston in each of the cylinders 8 and 9 is about to be moved leftward. Racks 14 and 15 formed integrally with each piston are engaged large and small gears 18 and 17 in positions facing each other to block movement. In this case, the cylinder 7 is moved rightward accompanied with the cylinder 8, and an output shaft 20 is rotated through a crank wheel 21. When the cylinder 7 is moved to a rightward movement limit 33, an incoming electromagnetic valve 23 is turned ON, pressure liquid is fed to the reciprocating pressurization side of each of the cylinders 7-9, and the output shaft 20 is intermittently rotated.
Patent JP-S60157019-A (JP)
Title: Continuous weight determining measuring device for flow of matter
Inventor: KURAUSU FURIIDORITSUHI
IPC: G01F1/80
Filed: 1984-12-20
Abstract: The continuous determination of the weight of a material stream by means of the blow force occurring on a bouncing plate, as used for many applications, is not sufficiently exact. For the determination of the driving torque a rotating impeller wheel which conveys the material stream and is driven at a constant speed of rotation is being proposed, the material stream being supplied to the impeller wheel in the central range thereof and is radially supplied to the guide vanes which lie outside of the central supply range.
Patent JP-H06114851-A (JP)
Title: Production of injection-molded product
Inventor: TANAKA SHIGEO
IPC: B29C39/26
Filed: 1992-10-06
Abstract: PURPOSE:To shorten the working process and improve the working environment and yield by using female and male mating molds in such a state that a preformed reinforcing fiber is fixed to the surface of the female mold and integrally molding the preformed reinforcing fiber and a polymerizable material. CONSTITUTION:The surface of an electroforming mold consisting of female and male mating molds is treated with a release agent. Subsequently, a vinyl ester resin is uniformly sprayed on the surface of the male mold and cured to form a gel coated layer 1. A unifilo mat formed in the shape fitted to the surface layer of the female mold is spot-bonded to the inner surface of the female mold by a double-coated tape. Next, the female and male mating molds are set and, thereafter, a glass powder is added to an unsaturated polyester resin as a filler to be mixed therewith under stirring and the resulting mixture is defoamed to prepare resin mortar for a resin mortar layer 2. This resin mortar is injected in the cavity between the female and male mating molds and, thereafter, hot water of 60 deg.C is allowed to flow as primary heating at first in order to suppress the cracking at the time of molding and hot water of 80 deg.C is subsequently circulated as secondary heating to cure the resin mortar.