baber/WOPTO huggingface dataset:
Patent JP-H08231688-A (JP)
Title: Production of polylactic acid
Inventor: OBARA HITOMI
IPC: C08G63/78
Filed: 1995-02-23
Abstract: PURPOSE: To prevent the discoloration and decomposition by using lactide as the main raw material and performing the steps of melt polymerization, pellet forming, solid-phase polymerization at a temperature below the melting point of the pellets, and sublimation of an unreacted monomer. CONSTITUTION: In the first step, lactide is subjected to melt polymerization at 100-190 deg.C in the presence of 1-500ppm catalyst to give a polylactic acid with an average molecular weight of 5 to 200,000, a lactide content of 2-20wt.% and a viscosity of 1,000-20,000P. In the second step, the polylactic acid is taken out of the reactor, cooled and formed into pellets. In the third step, the pellets are subjected to solid-phase polymerization at a temperature of 80-175 deg.C, i.e., below the melting point of the pellet, for 6-90hr. In the fourth step, an unreacted monomer is removed by sublimation at a temperature 2-40 deg.C lower than the melting point, 90-98 deg.C, of lactide in a vacuum, an inert gas or dry air to give high-molecular-weight pellets.
Patent JP-S62192517-A (JP)
Title: Casting method for molten iron for steel making
Inventor: MINOWA TAKAMITSU
IPC: B22D1/00
Filed: 1986-02-19
Abstract: PURPOSE:To prevent the formation of coarse kish graphite on the surface layer part of a casting by adding an alloy iron consisting of Si to the casting of a molten iron and increasing the nuclei for forming the graphite at the time of casting the molten iron by a direct casting method. CONSTITUTION:The molten iron after tapping from a blast furnace is received in a ladle 1 and is cast through a pouring bush 2 into a sand mold 3 at the time of casting the molten iron for steel making and casting a direct casting mold, molding board, etc., in a direct casting factory. Si or alloy iron consisting of Si and Mn is added at bout 0.3-0.6% to the casting flow through a chute 4 at the time of said casting. The formation of the coarse-grained graphite in the progressing process of solidification in a casting mold is thereby effectively suppressed without deteriorating in capacity of the additive alloy, by which the formation of the kish graphite is easily prevented and the crystallized graphite pieces are made small and uniformly distributed.
Patent JP-H01209823-A (JP)
Title: Information transmitter in levitated vehicle
Inventor: KIMURA KUNIHIKO
IPC: B61B13/08
Filed: 1988-02-17
Abstract: PURPOSE:To send a position detection signal and various kinds of on-vehicle information sets continuously without giving any effect on the position detection signal by adopting an FSK wave for the transmission wave and using a polyphase cross inductive wire. CONSTITUTION:An on-vehicle transmitter 12 sends a transmission to detect the position of a vehicle 1 to ground as an FSK wave being the result of frequency modulation by a digital signal D signifying various kinds of on-vehicle information sets. Then level detectors 19-21 and demodulators 22-24 of an on-ground receiver 18 detect the level and demodulate the signal as to each phase of a polyphase reception wave inputted from a polyphase cross induction wire A provided along the running path. Then AND circuits 25-27 AND a level detection signal and a demodulation signal in each phase and an OR circuit 28 adds the output signals of the AND circuits 25-27.
Patent JP-S61194219-A (JP)
Title: Polyester fiber with pores on its surface
Inventor: NAKAMURA RYOJI
IPC: D06M101/16
Filed: 1985-02-22
Abstract: PURPOSE:The titled fiber that has a number of specific fine depressions on fiber surfaces, contains a Zr compound in filaments, thus showing good deep color development, dry touch without oily feeling, further being produced stably without lowered quality. CONSTITUTION:Until completion of polyester synthesis, a Zr compound such as zirconium formate and a P compound are added and the resultant polyester is made into fibers and the fibers are treated with aqueous alkali to form fine depressions with a width of 0.2-0.8mu in the peripheral direction perpendicular to the fiber axis, more than 10 depressions per 100mu<2> of fiber surface area where by the objective fiber containing a Zr compound is obtained. The amount of the Zr compound added is 200-1,500ppm, calculated on Zr atom, based on the produced polyester and preferably should be present in the fiber as a reactant.
Patent JP-S55127896-A (JP)
Title: Method for controlling current-type inverter
Inventor: NAKANO TAKAYOSHI
IPC: H02M7/757
Filed: 1979-03-27
Abstract: PURPOSE: To make the effects of service interruption minimum by continuing the operation of a motor when AC power supply has stopped, and resuming the normal operation of the motor as quickly as possible after the failure of the AC power supply has been recovered.  
     CONSTITUTION: When an AC power supply 10 has stopped, a power-stoppage detector 46 detects the stop, and its output signal is supplied to an operation-signal- input terminal a of a DC-currnet-command generator 48. In this way, the inverter frequency is adjusted, and an inverter-DC-input current is kept at a small value which is approximately equal to the exciting current for a motor 18. The operation of the motor 18 is continued under the conditions the power factor is approximately zero. When the AC power supply 10 has been recovered, the operation of the DC-current-command generator 48 is stopped, the frequency of the inverter 16 is brought back to the normal value, and the operating speed of the induction motor 18 is brought back to the speed before the power-supply stoppage. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H06246824-A (JP)
Title: Production of pattern plastic sheet
Inventor: SATO TOSHIO
IPC: B29L9/00
Filed: 1993-02-24
Abstract: PURPOSE:To obtain a pattern plastic sheet which is so stable that a pattern cannot be erased, omitted, or peeled off by a method wherein a pattern material similar to a sheet substrate is thermoformed integrally with the sheet substrate using a mold. CONSTITUTION:In a mold, a sheet raw material 3 made of an ultra-high- molecular-weight polyethylene (having a molecular weight not less than 1,000,000) is set. Preformed pattern materials 4 similar to the raw material with the same or different molecular weight are appropriately arranged in the raw material 3. The sheet raw material 3 and the pattern materials 4 are simultaneously thermoformed.
Patent JP-H08232703-A (JP)
Title: Fuel pressure control device
Inventor: MASUSHIRO ZENICHIROU
IPC: F02D45/00
Filed: 1995-02-23
Abstract: PURPOSE: To control fuel pressure securely unrelated to elasped change of discharge efficiency of a fuel pump or instrumental error caused from machine error of the fuel pump and capacity error of a fuel piping system. CONSTITUTION: Fuel stored in a fuel tank 251 is pressed by a booster pump 25 and fuel pump 53 and stored in a common rail and directly injected in a cylinder by fuel injection valves 211-214 disposed for every cylinder. Fuel pressure is detected by a pressure sensor 231 and compared with target pressure and to determine control amount in a control part 26, learning value is changed when the control amount excesses determined range and elapsed variation or machine error of the fuel pump and capacity error of a fuel piping system are absorbed to maintain pressure characteristic by correcting the control amount by learning value and determining operation amount of a fuel pressure control part 254.
Patent JP-S57151146-A (JP)
Title: Forming method of color picture tube phosphor screen
Inventor: WATANABE HISAMITSU
IPC: H01J29/22
Filed: 1981-03-13
Abstract: PURPOSE:To save energy consumption by using polyvinyl alcohol with a predetermined average polymerization degree and a predetermined viscosity for phosphor slurry. CONSTITUTION:Polyvinyl alcohol with an average polymerization degre of 2,700 or more and a viscosity of 50 centipoise or more for a four percent aqueos solution at 20 deg.C is used for phosphor slurry. Particularly, the average polymerization degree of 3,000-5,000 and the viscosity of 60-100 centipoise are suitable. Accordingly, a panel temperature and a developing temperature are lowered from 40- 45 deg.C, 40-50 deg.C in the past down to about 25-35 deg.C, thus the exposure time can be shortened and the energy consumption can be saved.
Patent JP-H11216763-A (JP)
Title: Apparatus for adjusting degree of kneading in double-screw extruder
Inventor: YOSHIDA MINORU
IPC: B29C48/52
Filed: 1998-02-02
Abstract: PROBLEM TO BE SOLVED: To prevent short passing of a highly viscous unmolten substance and retention of a resin from occurring, to perform miniaturization, and to highly accurately adjust degree of kneading. SOLUTION: Two screws 3 are freely rotatably arranged in connected divided cylinders 1 and 2. When screw shafts 13a and 13b screwed in screw holes 8b and 9b of slide keys 8 and 9 are rotated normally and reversely, the slide keys 8 and 9 are linearly moved in the orthogonal direction to the divided cylinder shaft direction along guide recessed parts 2a and 2b and accompanied with this, projected line parts 8c and 9c inclining to the axial line are slid along inclined key channels 10c and 11c formed on divided tapered rings 10 and 11 and the divided tapered rings 10 and 11 are linearly moved reversely in the axial direction of the divided cylinder. As the result, a gap (a flow path) between tapered parts 10a and 11a of the divided tapered ring 10 and 11 and the tapered face 7a of a collar-shaped part 7 is changed in a range between the min. gap t1 and the max. gap t2 .
Patent JP-H10192807-A (JP)
Title: Cleaning device
Inventor: TSUKIKI KAZUNORI
IPC: B08B9/087
Filed: 1997-01-13
Abstract: PROBLEM TO BE SOLVED: To easily clean the inside of a cup. SOLUTION: Sponge 12 is fixed in the circumference of a first shaft 11 and a handle 14 is connected to the first shaft 11 through a connection means 15 so as to be rotated around a second shaft 13. Sponge 12 is inserted into the inside of a cup 16 and circular motion of the handle 14 is performed by a right hand along the outer periphery of the cup 16. The inner face of the cup 16 is cleaned by rotating sponge 12 in the inside of the cup 16.
Patent JP-H05235739-A (JP)
Title: Output circuit
Inventor: YOKOYAMA TOMONOBU
IPC: H03K19/0175
Filed: 1992-02-24
Abstract: PURPOSE:To provide the output circuit in which the power consumption of a CMOS.C is reduced by adding an N-MOS diode to an external power supply and using its output for a power supply of an output circuit section to suppress or eliminate a through-current of the output circuit. CONSTITUTION:The output circuit is provided with an internal circuit section having an inverter comprising a 1st P-MOS transistor (TR)-3 and a 1st N-MOS TR 4 to which an internal power supply 1 is connected and with an output circuit section comprising a 2nd P-MOS transistor-(TR) 5 and a 2nd N-MOS TR 6 to which an external power supply 2 is connected and in which a voltage of the internal power supply 1 is lower than a voltage of the external power supply 2, and is also provided with an N-MOS diode 7 whose output is connected to the 2nd P-MOS TR 5 and with a substrate bias circuit 8 connecting to a substrate of the N-MOS diode 7.
Patent JP-H07245397-A (JP)
Title: Manufacture of semiconductor device
Inventor: OKIHARA MASAO
IPC: H01L21/265
Filed: 1994-03-07
Abstract: PURPOSE:To enable formation of a high concentration impurity diffusion layer which is free from crystal lattice defect by forming an ion implantation layer so that an edge part of an ion implantation layer surface is formed to a specified configuration. CONSTITUTION:A field oxide film is formed on a (100) silicon substrate 1 and a gate oxide film 2 is formed by carrying out gate oxidation. Then, polycrystalline silicon which becomes a gate electrode 3 is formed, ion implantation is performed for phosphorus at a low concentration using the gate electrode 3 as a mask and a low concentration diffusion layer is formed by carrying out thermal treatment in non-oxidizing atmosphere. A silicon oxide film is deposited all over and a sidewall 4 is formed in a side wall of the gate electrode 3 by anisotropic etching. In the process, a sidewall 4 which becomes a mask material when impurities are injected at high concentration is formed at an angle of 54.7 deg. or less to a surface of the (100) silicon substrate, which is an angle formed by a crystalline surface corresponding to [111] azimuth and a surface of the (100) silicon substrate 1.
Patent JP-H06253186-A (JP)
Title: Video camera
Inventor: IDA MITSUHIRO
IPC: H04N5/225
Filed: 1993-02-24
Abstract: PURPOSE:To prevent the generation of howling which is generated when a sound collected by a microphone is collected again in the microphone by mounting a monitor unit with a speaker and monitor are integrated on a video camera main body and executing photographing while a camera is in a recording mode with the microphone at the side of the camera and the speaker are closely located. CONSTITUTION:As a detection means detecting the loading state of a monitor unit 30 to a video camera main body 1, the monitor unit 30 and metal pieces 36a and 37a are arranged on the video camera main body 1. When a unit 30 is loaded, the metallic pieces 36a and 37a come into contact with each other and the loading state is detected. In this case, a mute circuit 12 inserted into a signal line supplying the sound signal collected by the microphone 3 to a speaker 32 is operated to prevent the supply of sound signal.
Patent JP-H03240971-A (JP)
Title: Blackening treatment of al, al alloy or steel sheet plated with same
Inventor: NAKAGAWA YOSHITAKA
IPC: C23C22/82
Filed: 1990-02-16
Abstract: PURPOSE:To obtain a black coating film having superior corrosion and heat resistances and undergoing no change in the color tone by treating Al (alloy) or an Al (alloy) plated steel sheet with an aq. soln. contg. prescribed amts. of an alkali metal permanganate, cobalt, fluorine and nitric acid. CONSTITUTION:An aq. soln. contg. 1-200g/l alkali metal or alkaline earth metal permanganate, 1-100g/l cobalt, 0.1-100g/l fluorine and 0.1-100g/l nitric acid is prepd. and Al (alloy) or an Al (alloy) plated steel sheet is treated with the aq. soln. to form a chromate coating film by 1-300mg/m<2> (expressed in terms of chromium).
Patent JP-S56130317-A (JP)
Title: Preparation of fiber reinforced plastic product containing core material having piercing hole therein
Inventor: MIWA JIYUNJI
IPC: B29C67/00
Filed: 1980-03-18
Abstract: PURPOSE: To obtain a product having a correct and beautiful piercing hole without carrying out a cumbersome hole forming work by a method wherein a part used as a cylinder part of the piercing hole is preliminarily formed to a mold, then layers of FRP, a core material having the piercing hole formed therein, and again FRP are laminated and molded sucdessively.  
     CONSTITUTION: For example, to a transom part of the mold 1 having a vessel body shape, a core 11 having protrusions formed thereon is attached. Subsequently, an FRP layer 2 is laminated around the mold 1 and the protrusions 13, 14. Next, the core material 3 having piercing holes 80, 70 is inserted so as to coincide a position thereof with the protrusions 13, 14 and adhered to the FRP layer 2 using adhesive paste 25. In this time, cylinder parts 23, 24 of the FRP layer 2 have been formed so as to be extended over the protrusions 13, 14 and extension parts of the cylinder parts 23, 24 are folded back to be adhered as well as an outer peripheral part remained in the core material 3 is laminated and covered with the FRP layer 2. Thereafter, the FRP is cured and the core 11 and a vessel body 10 are released from the mold 1. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-2000233072-A (JP)
Title: Game machine
Inventor: YOSHIDA SHIGERU
IPC: A63F13/45
Filed: 1999-02-15
Abstract: PROBLEM TO BE SOLVED: To provide a driving game providing the entertaining play to the players of various operation technique levels from a beginner to an expert with both of game function and simulation function. SOLUTION: A vehicle is moved on the basis of the operation by a player in the virtual three-dimensional space, and an image of the driving state of the vehicle is reproduced in a game machine. The game machine comprises a means for providing the player with a plurality of different operation modes for driving the vehicle along a travelling line, a means for selecting the desired moving mode from a plurality of operation modes by the player, and a means for executing a vehicle driving game with the operation mode selected by the player. A plurality of operation modes includes an assist mode for auto brake control and a training mode for giving various instructions such as a brake point and the like.
Patent JP-H03239259-A (JP)
Title: Photosensitive planographic printing plate
Inventor: NAGASHIMA AKIRA
IPC: G03F7/022
Filed: 1990-02-16
Abstract: PURPOSE:To allow the complete erasing of the traces of mounting by coating the surface of an anodized aluminum sheet with a positive type photosensitive compsn. contg. at least one kind of specified photosensitive materials and an alkaline-soluble resin. CONSTITUTION:The surface of the anodized aluminum sheet is coated with the positive type pohotosensitive compsn. contg. at least one kind of the photosensitive materials having the structure expressed by formula I and the alkaline- soluble resin. In the formula I, D<1>, D<2> respectively denote 1, 2- naphthoquinonediazide-5-sulfonyl group or 1,2-naphthoquinonediazide-4-sulfonyl group; R<1>, R<2> respectively denote formula II, -OH, -SO3H, etc.; a, b, c, d, e, f and respective 0 to 5 integers and satisfy the relation 5<=(a+b+c+d+e+ f)<=10, 2<=(a+b). The complete erasing of the traces of the mounting even with a non-polluting erasing liquid is possible in this way.
Patent JP-S60179092-A (JP)
Inventor: KOBAYASHI MITSUHIKO
IPC: D06F37/42
Filed: 1984-02-27
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-H03238022-A (JP)
Title: Desulfurization of coke oven gas
Inventor: KUMAGAI MASATOSHI
IPC: C01F11/46
Filed: 1990-02-16
Abstract: PURPOSE:To prevent the adhesion of a product to an absorbing tower by using an NaOH solution in the absorbing tower as an adsorbent for absorbing the sulfur dioxide component in combustion exhaust gas and recovering formed NaHSO3 as a byproduct. CONSTITUTION:Desulfurization treatment is applied to coke oven gas and the sulfur component in the waste solution generated by the desulfurization treatment is burnt and the sulfur dioxide component in the combustion exhaust gas generated by combustion is absorbed by an absorbent in an absorbing tower 1 and, subsequently, a byproduct is recovered from the formed slurry. At this time, an NaOH solution is used in the absorbing tower 1 as the absorbent for absorbing the sulfur dioxide component in the combustion exhaust gas and NaHSO3 thus formed is recovered as a byproduct. As a result, the adhesion of the absorbent or reaction product to the absorbing tower, a circulation tank or a gas conduit is prevented and operation can be efficiently performed without requiring adherend removing work.
Patent JP-H04274486-A (JP)
Title: Image display device
Inventor: MORIHARA TAKASHI
IPC: G06T9/00
Filed: 1991-03-01
Abstract: PURPOSE:To realize the image display device which enables an image to be retrieved efficiently with a natural feeling as if the pages of a book were turned over as to an image display device which decodes and displays encoded image data. CONSTITUTION:Hierarchic coded data on plural images stored in a code data storage part 20 are restored by an image restoration part 220 in one-image units from rough images to fine images stepwise, stored in an image storage part 230 in order, and displayed on an image display part 270 through a display control part 240. After the restoration and display are performed up to a necessary layer, the hierarchic image data in the image storage part 230 are deformed by a deformation arithmetic part 260 a specific number of times and then outputted to the display control part 240. At this time, image data in the 1st hierarchy of a next image is inputted to the display control part 240 from the image storage part 230. The display control part 240 puts the deformed image of the previous image inputted from the deformation arithmetic part 260 and the image of the 1st hierarchy of a new image inputted from the image storage part 230 together into one image, which is displayed.
Patent JP-H11233133-A (JP)
Title: Battery in which laminated sheet is used for sheath case
Inventor: OGAWA MASAHIKO
IPC: H01M50/528
Filed: 1998-02-18
Abstract: PROBLEM TO BE SOLVED: To prevent dissipation of an electrolyte from a lead-out part for a lead in a battery in which a laminated sheet is used for a sheath case. SOLUTION: A laminated electrode 4 laminated with a positive pole plate 1 and a negative pole plate 2 via a separator 3 is contained wrappedly by a laminated sheet to form a sheath case 7. A positive electrode lead 8 and negative electrode lead 9 led out from the laminated electrode 4 to its outside are coated with modified polyethylene films 12, 13 respectively. Since the modified polyethylene films 12, 13 are excellent in adhesiveness with metal, joined to the respective leads 8, 9 by thermal fusion, and joined thermally fusedly to the laminated sheet by sealing, dissipation of an electrolyte from the inside of the sheath case 7 is suppressed.
Patent JP-S62196078-A (JP)
Title: Ultrasonic motor
Inventor: KAWASAKI OSAMU
IPC: H01L41/09
Filed: 1986-02-20
Abstract: PURPOSE:To increase energy stored in a driving unit and enhance mechanical output and improve efficiency, by using the disc of a large mass in the same occupied space, in a diameter-directional secondary higher bending oscillation mode. CONSTITUTION:By putting a disc-formed piezo-electric unit 7 with a hole bored through the central section, together with a disc-formed elastic unit 8 with a bored hole, a disc-formed driving unit 9 is composed. Inside and outside the nodal circle of the bending oscillation of the driving unit 9, electrodes A', B' are fitted respectively and concentrically. The electrodes A', B' consist of the group of small electrodes having the length corresponding to lambda/2 in the peripheral direction, and the group of the small electrodes adjacent to each other is polarized in the direction opposite to the thickness direction each other. The rear surface of the piezo-electric unit 7 is of a mat electrode, and is used as a common electrode. When the electric field of a sin wave is applied to one side of each small electrode section and the electric field of a cos wave is applied to another side of the section, then the progressive wave of circumference-directional secondary higher bending oscillation is excited.
Patent JP-H06215879-A (JP)
Title: Lamp connection detecting device
Inventor: KIMURA MASAHIRO
IPC: G01R31/02
Filed: 1993-01-13
Abstract: PURPOSE:To easily detect the connecting state of a lamp only by connecting a resistance array to the A/D converter of a microcomputer by using the microcomputer in a control circuit of a discharge lamp circuit for multiple light. CONSTITUTION:In a discharge lamp circuit 1, a resistance array 2 is connected in parallel to a lamp filament, and when one to five lamps are removed, the output voltage of the resistance array is changed according to the respective states. This output is converted into a digital quantity by the A/D converter of a microcomputer 4, and the data is judged by the microcomputer 4, whereby the connecting state of the lamp can be judged.