baber/WOPTO huggingface dataset:
Patent JP-H03197920-A (JP)
Title: Polarized light source
Inventor: OOISHI NORIJI
IPC: G02B27/28
Filed: 1989-12-27
Abstract: PURPOSE:To prevent a projection light beam from generating irregular in brightness when linearly polarized light is formed efficiently while using a light source having random polarization by providing a light reflecting means which guide four light beams to the prism array formed surface and its opposite-side surface of a transparent plate so that light transmitted and the light which has not transmitted through a 1/2-wavelength plate are superposed one over the other. CONSTITUTION:A reflecting mirror 7 and the transparent plate 1 are arranged so that two kinds of light components are put one over the other on the transparent plate 1; and a light component from one polarization beam splitter 4 which have its plane of polarization rotated and a light component from the other polarization beam splitter 4 with does not have its plane of rotation rotated are superposed one over the other by one half on the transparent plate 1. Further, a light component from one polarization beam splitter 4 which does not have its plane of polarization rotated and a light component from the other polarization beam splitter 4 which has its plane of polarization rotated are superposed one over the other by the other half on the transparent plate 1. Consequently, the linearly polarized light can be generated efficiently from the light source for random polarization without generating any irregularity in brightness by using the small-sized device.
Patent JP-H06163866-A (JP)
Title: Solid-state image pickup device and its manufacture
Inventor: SUZUKI SATOSHI
IPC: H04N5/335
Filed: 1992-11-24
Abstract: PURPOSE:To improve the sensitivity of a solid-state image pickup device and to easily manufacture the device, and then, to suppress the quantity of light made incident from adjacent picture elements. CONSTITUTION:After forming photosensitive elements 30 on a semiconductor substrate 33, micro-lenses 34 are respectively formed above the elements 30 and a micro-lens 38 is formed above the lenses 34 so that the light made incident to the lens 38 can be condensed to the elements 30 after the light is once condensed to the lenses 34.
Patent JP-H02198019-A (JP)
Title: Head shift mechanism
Inventor: TAKAI KAZUKI
IPC: G11B5/54
Filed: 1989-12-27
Abstract: PURPOSE:To detect a head position quickly by providing a detection section for detecting the holding of the reproducing position on a head, thereby using the detection section to detect directly the head position. CONSTITUTION:Since a head position detection switch 1 is applied when the head is held to the reproducing position, an output signal from a head position detection section 2 is stopped and the count of a counting section 3 is reset. If the head is not in the reproducing position, the head position detection switch 1 is kept open as it is and the head position detection section 2 sends an output for a prescribed period, the output operates a solenoid driving signal generating section 7, its output drives a head shift solenoid 8 again, the counting section 3 counts the number of times of the drive, and when the same state is continued further, the operation is repeated and the counting section 3 receives the signal of the setting circuit, then the counting section 3 sends a counting end signal to a head shift stop section 9. The stop section 9 uses the signal to apply the control such as the stopping of the mechanism.
Patent JP-2001007769-A (JP)
Title: Low delay sub-band division and synthesis device
Inventor: BANBA YUTAKA
IPC: H03M7/30
Filed: 1999-11-26
Abstract: PROBLEM TO BE SOLVED: To reduce the delay quantity of a system by adopting an FIR low pass filter where impulse responses become asymmetric for a basic filter and reducing group delay. SOLUTION: A PCM digital signal x(n) is inputted to a band division filter bank 001. Band division filters H0 to HM-1 010 to 01n execute convolution operation by each band. Down samplers 020 to 02n execute thinning. A prescribed signal processing is executed on a thinned signal by a processing 003. In a band synthesis filter bank 002, up samplers 040 to 04n execute an interpolation processing and band synthesis filters F0 to FM-1 030 to 03n execute the convolution operation by each band. An adder 004 adds the signals, and the signal is outputted as a reproduced PCM digital signal y(n). The filters H0 and F0 are basic filters, and an FIR low-pass filter where impulse responses are asymmetric is used.
Patent JP-H09180442-A (JP)
Title: Volatile memory device and its refreshing method
Inventor: FUJIOKA SHINYA
IPC: G11C11/406
Filed: 1995-12-25
Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption and achieve the high speed operation by a method wherein, at the time of a refresh operation, a bank region and cell array blocks in the region are selected and only a predecoder corresponding to the selected region is activated. SOLUTION: At the time of a normal operation and at the time of a refresh operation, one bank bnk0-3 is selected by a bank selector 5 and only a predecoder 2 in the selected bank is activated. On the other hand, a plurality of cell array/sensing amplifier blocks are provided in the respective banks and, at the time of a normal operation, one block only is selected and, at the time of a refresh operation, a plurality of the blocks are selected. That is, a refresh control signal refz is supplied to an address buffer register unit 4 which is connected to a predecoder 2 and the proper addresses in the address buffer register unit 4 are degenerated and a plurality of the blocks are selected and respective word lines are selected in the blocks.  With this constitution, the power consumption can be minimized and, further, a plurality of word lines are selected simultaneously and hence a high speed refresh operation can be achieved.
Patent JP-H07187789-A (JP)
Title: Sintered aluminum nitride and aluminum nitride multilayer circuit board
Inventor: MONMA JUN
IPC: C04B35/581
Filed: 1993-12-28
Abstract: PURPOSE:To obtain a sintered aluminum nitride keeping high thermal conductivity even by including impurities to impart opacity to the sintered product and producible at a low cost and to provide an aluminum nitride multilayer circuit board. CONSTITUTION:This sintered aluminum nitride is composed of an aluminum nitride crystal texture containing >=0.8wt.% of oxygen and/or >=0.16wt.% of cationic impurities. The bulky compound 2 containing the oxygen and the cationic impurity is formed in the crystal texture and the average particle diameter of the bulky compound is larger than that of the aluminum nitride crystal grain 1. The thermal conductivity of the sintered material is >=200W/m.K. The aluminum nitride multi-layer circuit board of the present invention is produced by forming a wiring conductor on the surface and in inside of the sintered material.
Patent JP-H06226438-A (JP)
Title: Soldering method and device for electronic parts
Inventor: NAGATSUKA TOSHIYUKI
IPC: H05K3/34
Filed: 1992-11-24
Abstract: PURPOSE:To prevent the degradation in the activity of a flux and to prevent the generation of a solder ball by introducing dehumidified air into a furnace to maintain a dehumidified atmosphere in this furnace. CONSTITUTION:Preheating and reflow are executed with lapse of time in preheating sections 3, 4 and reflow section 5 in the furnace body 1 having a construction of a non-hermetic type entailing the inflow of the atm. air. As a result, electronic parts are soldered and fixed to the surface of a printed circuit board by cream solder. The dehumidified air is, thereupon, introduced from a supply path 64 into the furnace to maintain the dehumidified atmosphere in the furnace. An air mixture composed of the dehumidified air and gaseous nitrogen is introduced as the dehumidified air. As a result, the moisture absorption of flux components is suppressed and the deterioration of the flux is prevented. The formation of a protective film consisting of a good solder by the flux is possible. The good soldering and fixing of the electronic parts are thus executed.
Patent JP-2000159242-A (JP)
Title: Pillow type packaging bag
Inventor: AIZAKI OSAMU
IPC: B65D33/20
Filed: 1998-11-27
Abstract: PROBLEM TO BE SOLVED: To enable an opened back-adhesive part to be sealed again by forming the back-adhesive part of a pillow-type packaging bag with a re-separable adhesive part, a blank part, and a heat adhesive portion respectively formed in parallel along the outside direction from an article accommodation part side and longitudinal direction of a article accommodation part side. SOLUTION: A pillow type packaging bag 1 includes an end part heat adhesive part 2 formed at its end part and a back-adhesive part 3 formed at right angles with respect to the end part heat adhesive part 2. The back adhesive part 3 is made up of a re-separable adhesive part 3a, a blank part 3b, and a heat adhesive part 3c formed in the outside direction from an article accommodation part side, and there parts are formed in parallel along the longitudinal direction of the article accommodation part side. In addition, the re-separable adhesive part 3a is a part in which an adhesive is applied to the opposite resin film, and the heat adhesive part 3c is formed outside of the back-adhesive part 3, and also the blank part 3c is formed in the middle of both of them. Furthermore, a V-shaped notch 3d is formed at a longitudinally directional end part of the back-adhesive part 3.
Patent JP-H08184955-A (JP)
Title: Production of transfer mask
Inventor: AMAMIYA ISAO
IPC: G03F1/68
Filed: 1994-12-27
Abstract: PURPOSE: To provide a process for producing a transfer mask capable of easily and stably producing the transfer mask having opening patterns of high accuracy at a low cost. CONSTITUTION: This process for producing the transfer mask includes a stage for forming supporting frame parts and thin-film parts supported in supporting frame parts by etching the rear surface of a substrate and a stage for forming through-holes in the thin-film parts. The process includes a stage for forming a conductive layer 2 on the surface of the substrate 1, a stage for forming an etching mask layer (SiO2 layer 3) of the conductive layer 2, a stage for patterning the etching mask layer 3 formed on the conductive layer 2 to desired shapes by using a lithography technique and a stage for continuously working the surface of the conductive layer 2 and the substrate 1 to desired depths by a dry etching technique using the patterned etching mask layer 3 as a mask.
Patent JP-2000164940-A (JP)
Title: Thermoelectric semiconductor composition and manufacture thereof
Inventor: SAKAKIBARA TSUTOMU
IPC: H01L35/16
Filed: 1998-11-27
Abstract: PROBLEM TO BE SOLVED: To enable improving a performance index Z of a thermoelectric semiconductor composition, without essentially sacrificing all factors relating to the performance index Z. SOLUTION: The composition includes a matrix 2 of a first thermoelectric semiconductor and particles 3 of a second thermoelectric semiconductor which are dispersed into the matrix 2. The first and second thermoelectric semiconductors contain at least one common element as one of its constituent elements. A mean particle diameter D of the dispersed particles 3 satisfies the relation A<D<B, where A denotes the mean free path of carriers in a single crystal of the second thermoelectric semiconductor, and B denotes the mean free path of long-wavelength photons in a single crystal of the second thermoelectric semiconductor.
Patent JP-H05176594-A (JP)
Title: Inverter device for induction motor
Inventor: MATSUOKA KAZUHIRO
IPC: H02P27/08
Filed: 1991-12-19
Abstract: PURPOSE:To provide an inverter device for an induction motor capable of obtaining output voltage having a waveform close to a desired waveform without being affected by a dead time. CONSTITUTION:A potential detector 10 detects the fluctuation of potential at the node of switching elements Q1, Q2 while using potential at the node of resistors R1, R2 having the same value connected between both ends of the series circuit of a pair of the switching elements Q1, Q2 constituting an inverter section as a reference. A dead time detector 11 detects a dead time from an output from a signal forming circuit 20. A sample-and-hold circuit 12 inputs an output from the potential detector 10 to an integrating circuit 13 during the input of the dead-time detecting signal of the dead time detector 11. The integrating circuit 13 inputs an integrated output to a compensator 16 through a buffer 14 and a filter circuit 15. The compensator 16 corrects the amplitude of a control signal Vu consisting of sine waves generated from a control signal generator 23 in response to the integrated output.
Patent JP-H03109572-A (JP)
Title: Solidified toner for color development
Inventor: YUI KOJI
IPC: G03G9/08
Filed: 1989-12-26
Abstract: PURPOSE:To attain full-color development with one set of developing device constituted by having, for example, one piece of developer tank and one piece of developing electrode by superposing electrical insulating org. materials dispersed with coloring agents of respective colors, in the form of layers, and solidifying the same. CONSTITUTION:The coloring agents of the respective colors necessary for color development are respectively separately dispersed into the electrical insulating org. materials which are solid at ordinary temp. and solidify when heated. The electrical insulating org. materials dispersed with the coloring agents of the respective colors are superposed in the form of layers 1A to 1C and are solidified. This toner is the solidified toner formed by superposing the toners which are solid at ordinary temp. and superposing the toners of each amt. necessary for one time of development of one sheet of images by colors in the form of layers in such a manner and, therefore, the required amt. each for one time of development of each color is heated and liquefied (melted) successively from the outer side of, for example, the cylindrical toner 1. The development of three colors; Y (yellow), M (magenta) and C (cyan) is successively executed by using one piece of the developer tank and one set of the developing electrode and heating means and repeating three times of the development.
Patent JP-H08185073-A (JP)
Title: Fixing device
Inventor: NAKANE YOSHIMITSU
IPC: G03G15/20
Filed: 1994-12-28
Abstract: PURPOSE: To provide a fixing device capable of automatically removing a paper sheet wound on a fixing roller or a pressure roller. CONSTITUTION: A reflection type photosensor 13 is disposed to face the pressure roller 3 and a fixing roller reversing means for reversing the pressure roller 3 in the direction of C, after the fact that the paper P-a is wound on the pressure roller 3 is detected by a sensor 13 is disposed as well. Further, a wound paper separating pawl 15 for peeling the tailing edge part P-a-1 of the paper P-a wound on the pressure roller 3, when it is rotated in the direction of C is pressed on the pressure roller 3 with prescribed pressure by a tension spring 16, centering a rotary shaft 15-a. Thus, when the pressure roller 3 is reversed in the direction of C, the paper P-a is separated from the pressure roller 3 by the wound paper separating pawl 15 and carried by rollers 17 and 18, to drop in the case of a copying machine main body.
Patent JP-H06188256-A (JP)
Title: Manufacture of semiconductor device
Inventor: TAKAHASHI KATSUYUKI
IPC: H01L21/336
Filed: 1992-12-17
Abstract: PURPOSE:To provide a method for the manufacture of a semiconductor device of LDD structure free from junction leakage failure. CONSTITUTION:The title method for manufacturing semiconductor devices consists of a process wherein a gate oxide film 2 is formed on a semiconductor substrate 1, and then a gate electrode 3 is formed thereon; process wherein an ion is implanted in a low impurity concentration to form an n<->-type source region 4 and n<->-type drain region 5; process wherein the gate oxide film 2 is etched, and then a polycrystalline silicon film 6a is formed to cover the gate electrode 3; process wherein a silicon single-crystal layer 7 is formed on the substrate 1; process wherein a CVD oxide film 8 is formed and then etched back to form spacers 9 and 10; and process wherein an ion is implanted in a high impurity concentration to form an n<+>-type source region 11 and n<+>-type drain region 12. This reduces the stress between the substrate 1 and spacers 9 and 10, and thus makes it possible to manufacture a semiconductor device of LDD structure free from junction leakage failure.
Patent JP-2000169121-A (JP)
Title: Amorphous calcium phosphate slurry and its production
Inventor: ISHIKAWA TSUKASA
IPC: B01J13/00
Filed: 1998-11-27
Abstract: PROBLEM TO BE SOLVED: To keep sufficient fluidity and uniform dispersed state over a long period even in high concentration of solid matter by finely pulverizing an aqueous slurry of calcium phosphate, which contains a polycarboxylic acid having the specific number of carboxy groups and abobe, with a medium stirring mill. SOLUTION: A phosphorus component solution such as phosphoric acid is added to as suspension containing calcium component such as calcium hydroxide at the liquid temperature of under <=50 deg.C stirring. The aqueous slurry in which fine primary particles of amorphous calcium phosphate that is tricalcium phosphate having amorphous crystal structure and containing water of crystallization are dispersed is obtained by adjusting to pH 6-8. The polycarboxylic acid having >=3 carboxy groups such as citric acid is added to the aqueous slurry and the dispersed particle is pulverized into <=1 μm average particle diameter by the medium stirring mill. The addition quantity of the polycarboxylic acid is, for example, 0.68 pts.wt. per 100 pts.wt. amorphous calcium phosphate when the concentration of solid matter of the amorphous calcium phosphate is 25 wt.%.
Patent JP-H07198374-A (JP)
Title: Detection apparatus of direction of sun
Inventor: KANBE TATSUSHI
IPC: B64G1/36
Filed: 1993-12-28
Abstract: PURPOSE:To capture the sun over a wide range and to detect the direction of the sun with high accuracy by a method wherein the direction of the sun is decided by using the positional signal, of a photodetector, which is obtained by detecting an electric charge generated by the photodetector which has received the rays of the sun. CONSTITUTION:The sunlight 6 is passed through a slit 2 in the surface 7 of a box body 1, it reaches photodetectors 9 which have been arranged in series on the inside bottom face 8 of the box body 1, and it generates an electric charge. A sun-direction decision means 12 executes a program 17 which has been stored in a ROM 14 by a CPU 13. That is to say, positional signals of the photodetectors 9 which have generated the electric charge are input from an input port 19, it performs arithmetic by using a RAM 15 in an operating region, it checks the abnormality of the photodetectors 9, and it outputs the decided direction of the sun as a sun-direction signal 20 from an output port 21. This operation is executed repeatedly, and the signal 20 is output continuously.
Patent JP-H05151086-A (JP)
Title: Address converting buffer circuit
Inventor: MIZUKAMI KENGO
IPC: G06F12/10
Filed: 1991-11-27
Abstract: PURPOSE:To improve the hit rate of an address converting buffer. CONSTITUTION:Two TLBs (address buffer) are distinctively used so that one TLB 4 is for instructions and the other TLB 5 is for operands. This distinctive use is controlled by a control circuit 8 whose virtual address 101 indicated with the request code 102 in a request code register 2 is the address of an instruction or operand. The doubled TLBs are used distinctively between the instruction and operand, so the hit rates of the TLBs are increased.
Patent JP-2001150518-A (JP)
Title: Method for controlling concentration of low-molecular gas of foaming agent dissolved in extrusion molding resin material
Inventor: OSHIMA MASAHIRO
IPC: B29C48/92
Filed: 1999-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a practical concentration control method overcoming the point at issue incapable of utilizing a sensor detecting foaming agent gas on-line when a conventional foamed molded object is manufactured and to enhance the quality of a foamed molded object. SOLUTION: In a method of manufacturing for a resin molded article comprising a foamed resin by molding a molding resin material, which is prepared by dissolving a low-molecular gas as a foaming agent in a molten polymeric resin, by a molding machine, the absorption spectrum of near infrared rays of the molding resin material extruded from the molding outlet of a molding machine is measured by a near infrared spectroscopic method and the concentration of the low-molecular gas of the foaming agent dissolved in the molding resin material is calculated from the measured absorption spectrum and the supply of the low-molecular gas of the foaming agent is controlled so that the calculated value of the low-molecular gas of the foaming agent becomes equal to a predetermined set value.
Patent JP-H03195943-A (JP)
Title: Thermal shock tester
Inventor: TANAKA TAKASHI
IPC: G01N3/60
Filed: 1989-12-25
Abstract: PURPOSE:To enable accurate temperature control with an expansion of a set temperature range at a high temperature exposing by performing a temperature adjustment within a test chamber at the high temperature exposing by an opening or closing action of a low temperature damper with a controller. CONSTITUTION:An internal temperature of a test chamber 1 is detected with a temperature detector 6 at a high temperature exposing and when an actually measured value exceeds a specified set high temperature exposing temperature, a low temperature damper 4 is opened with an action of a damper controller 7 and the inside of the test chamber 1 is adjusted to a low temperature position accordingly. When the actually measured value becomes lower than the set high temperature exposing temperature, the damper 4 is closed and the inside of the test chamber 1 is adjusted to a high temperature position. In other words, as the temperature adjustment in the test chamber 1 during the high temperature exposing is performed by the opening or closing action of the damper 4 with the controller 7, an accurate temperature control is accomplished based on the set temperature even when the set high temperature exposing temperature is set low thereby enabling expansion of a set temperature range during the high temperature exposing.
Patent JP-H10177982-A (JP)
Title: Substrate processing device
Inventor: ARIOKA MASAHIRO
IPC: H01L21/304
Filed: 1996-12-18
Abstract: PROBLEM TO BE SOLVED: To provide a substrate processing device which reduces a period of substrate processing due to chemical exchange. SOLUTION: A substrate processing device 100 has three chemical baths CB1 to CB3 containing chemicals for surface processing on a substrate W. If a chemical reservation period of one of these baths reaches chemical life expiration time, it is determined whether or not the remaining chemical life of each chemical in each of the other chemical baths, i.e., a value obtained by subtracting a current chemical reservation period from the chemical life, is shorter than a predetermined period. If the remaining chemical life is shorter than the predetermined period in one of the other chemical baths, the chemical is exchanged at approximately the same time of the chemical exchange in the chemical-life expired bath.