baber/WOPTO huggingface dataset:
Patent JP-2000269458-A (JP)
Title: Semiconductor device and its manufacture
Inventor: KITAZAWA MASASHI
IPC: H01L21/8242
Filed: 1999-03-17
Abstract: PROBLEM TO BE SOLVED: To eliminate remained polysilicon to prevent the occurrence of a short circuit, by making the film thickness of the gate insulating film of a first MIS transistor thicker at the center of the gate electrode than at the periphery of the gate electrode. SOLUTION: An oxidation process is provided after the gate electrode pattern of a memory cell is formed to oxidize a semiconductor substrate and remaining polysilicon 34a to form a silicon oxide film 34b, which eliminates the remaining polysilicon and hence a short circuit made by the remaining polysilicon. Since polysilicon around gate electrode itself of a semiconductor substrate and a memory cell is oxidized, the gate electrode has a structure in which an insulating film is thick at the center portion and thin at the periphery, which is different also in structure from a conventional semiconductor device. Therefore, this tends to improve resistance to hot carrier because of the effects of the oxidation of the semiconductor substrate and the shape of the gate insulating film and hence can provide a MIS transistor with high reliability.
Patent JP-S55163644-A (JP)
Title: Sound recorder/reproducer
Inventor: YOSHII TETSUJI
IPC: G11B15/10
Filed: 1979-06-07
Abstract: PURPOSE: To ensure the repetition for both recording and reproduction through the one-touch operation, by installing the operating means with which the recording mode is secured only when the recording operation is continued in the reproduction mode and then the reproduction mode is reset directly when the recording operation is discontinued.  
     CONSTITUTION: When reproduction button 7 is pressed toward arrow A from the state under which switch lever 20 is turned to the NOR position in the pause mode shown in the figure, head substrate 8 shifts to the same direction. As a result, pinch roller 13 touches capstan 31 along with heads 11 and 12 touching the cassette tape each, and thus the reproducing action of the tape is started. This working state is preserved with hooking of notch 30 of substrate 8 to pin 28 of lock lever 25. When push-button 15 is pressed toward arrow A in the reproduction mode, recording lock lever 17 turns as if it detoured to the back of cassette guide pin 4. And bent bar 18 engages notch 19 of substrate 8, and thus the recorder/reproducer is held in the record mode. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S62226868-A (JP)
Inventor: YOSHIMOTO HISAYOSHI
IPC: C04B37/00
Filed: 1986-03-28
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-S55165227-A (JP)
Title: Manufacture of curved shape
Inventor: KINOSHITA SHIGERU
IPC: B21D11/20
Filed: 1979-06-07
Abstract: PURPOSE: To carry out the bending work to manufacture the extruded hollow shape of wide breadth without suffering from undesirable deformation, by placing the extruded shapes under the coupled condition, and by simultaneously applying the bending work to all shapes utilizing the slip at each fitting joint.  
     CONSTITUTION: The extruded hollow shape A, possessing L-type section and breadth l, is divided into six extruded shapes 2W7, in which the dovetail grooves 8W12 and the dovetail projections 13W17 are prepared in order to mutually undetachably couple by fitting each other. Then these extruded shapes 2W7 are mutually coupled by fitting each other. Each of extruded shapes 2, 3, 4, 5, respectively possesses the concentrically curved center lines Y 1 , Y 2 , Y 3 , Y 4 , and each extruded shape coherently moves slipping at respective fitting joint; hereby, all the extruded shapes are simultaneously curved. Hereupon, the degree of elongation and shrinkage at inside and outside of the curved center lines Y 1 WY 4  of each of extruded shapes 2W5 is very small as compared with the conventional degree, so that the deformation and distortion of each of extruded shapes 2W5 hardly generate, and the whole coupled body A of extruded shapes is provided with good appearance. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S61229446-A (JP)
Title: Twin roll type continuous casting machine
Inventor: MATSUI KUNIO
IPC: B22D11/06
Filed: 1985-04-04
Abstract: PURPOSE:To prevent the generation of bulging and breakout by providing channel chambers having gates along the outside diameter of juxtaposed cooling rolls to the inside lateral surface parts of side sealing plates disposed at both end faces of the cooling rolls so as to recess the chambers. CONSTITUTION:This twin roll type continuous casting machine produces an ingot 5 by forming a pouring basin 3 of the juxtaposed cooling rolls 1, 1 and the side sealing plates 2 disposed at both end faces thereof, supplying a molten metal 4 via a core 8 from a flow passage 9 thereof toward the contact parts between the above-mentioned rolls 1 and the side sealing plates 2 and drawing out the solidified shell 6 formed on the cooling rolls 1 as the ingot from between the two rolls 1 and 1. The hollow channel chambers 10 along the outside diameter of the rolls 1 are provided to the inside lateral surface parts of the plates 2 of the above-mentioned casting machine and the gates 11 having the required height are provided to the parts of the chambers 10 which contact with the cooling rolls 1. The generation of the solidified shell at the triple points is thereby prevented and the ingot 5 having good quality is formed. The generation of the bulging, etc. is prevented without melting the solidified shell 6 generated on the rolls 1.
Patent JP-H04307142-A (JP)
Title: Earthquake-proof system
Inventor: YAMAMOTO SHIZUO
IPC: F16F15/04
Filed: 1991-04-04
Abstract: PURPOSE:To enable it perform a quake-free operation even in an exorbitant vibration, in an earthquake-proof system. CONSTITUTION:In this earthquake-proof system 1, an upper plate 4 is supported by spherical bearings 6a-6d free of slide motion with a lower plate 5, and a wire 15 being installed so as to come into slidingly contact with lower blocks 9a-9i set up in the lower plate 4 and upper blocks 8a-8h on the upper plate 4 is drawn by a relative displacement between the upper plate 4 and the lower plate 5. The wire 15 is connected to a rod 17b of a gas spring 17 via a chain 16, wrapped on a sprocket 14 of a rotator 10, and a wire 20, thus the relative displacement between both upper and lower plates 4 and 5 is absorbed by dint of resilient force of the gas spring 17. The rotator 10 is rotated by displacement of the wire 1 5, static inertia moment in this rotator 10 acts on the wire 15, and the extent of frequency in the upper plate 4 is reduced, thereby checking a long periodic vibration. With this constitution, even if a vibration large in acceleration is inputted into the lower plate 5, it can be effectively damped by the gas spring 17.
Patent JP-H11273411-A (JP)
Title: Vehicle headlamp
Inventor: TERAOKA HARUO
IPC: F21V14/02
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To provide a headlamp capable of switching between a passing pattern and a normal pattern using one light emitting source by moving the position of a lamp relative to a reflector. SOLUTION: In a reflector 3, a passing reflection face 3a is formed at a position where light reaches when a lamp 2 is disposed as a standard position S for obtaining a passing pattern. A normal reflection face is formed at a portion where shading is conducted by a shading film 2c applied to the glass bulb 2b of the lamp 2. In the case where switching is conducted from the passing pattern to the normal pattern, the lamp 2 is turned in the axial direction so as to cause the light reach the normal reflection face 2b to obtain a vehicle headlamp 1, and only the turning of the lamp 2 is required for the switching. High precision in switching is obtained by a simple constitution such as a pin and a guide slot.
Patent JP-S58188531-A (JP)
Title: Manufacture of hollow stabilizer
Inventor: OONO AKIRA
IPC: B60G21/055
Filed: 1982-04-28
Abstract: PURPOSE:To heat-treat a large quantity of material by a small equipment and to increase the efficiency of work, by hardening and tempering a straight tubular stabilizer material made of steel and then bending it to a desired shape. CONSTITUTION:A low-carbon steel pipe is mainly used for a stabilizer blank material and is hardened by quick heating and cooling such as high-frequency hardening or electrical heating hardening. By this way, sufficient hardened hardness is obtained, and at the same time, decarburization, surface roughening, adhesion of scales and coarsening of crystal grains are prevented. In a tempering stage 2, the hardened stabilizer material pipe is tempered in a straight tubular state to increase its tenacity. In a forming stage 3 it is bent to a desired shape of a stabilizer, and piercing and other mechanical workings are performed. Further, if necessary, a shot peening stage 4 is performed to improve its fatigue resisting property but this stage is sometimes omitted. Next, in a painting stage 5, it is painted and subjected to an anticorrosive treatment to obtain a product.
Patent JP-S55165142-A (JP)
Title: Ca storing apparatus
Inventor: YAMASHITA IKUHIKO
IPC: A23L3/34
Filed: 1979-06-07
Abstract: PURPOSE: To make constant the temp. and humidity in a CA refrigerator surely by means of a simple mechanism, by installing a concn.-regulating means which forms an atmosphere of a composition suitable for long term storage of material to be stored, and a ventilating means which circulates cool air.  
     CONSTITUTION: Liquified nitrogen (LN 2 ) contained in an LN 2  tank 5 is decompressed by an expansion valve 6 and is sent to a cooler 2, hereby the inside of a CA refrigerator 1 is cooled by cool latent heat generated during evaporation of LN 2 . A portion of N 2  discharged from the cooler 2 is delivered through an N 2 -supplying tube 9 branched from an exhaust pipe 8, a shut-off valve 11, a flowmeter 10 into the refrigerator 1, where the gas in the refrigerator 1 is controlled to a composition suitable for storing vegetables and fruits 24 by replacing a portion of O 2 , CO 2  in the refrigerator 1 with N 2 . O 2  is replenished, if necessary, through an O 2 -supplying pipe 12. The majority part of N 2  is sent through an exhaust pipe 8 to a turbine 4, where circulating fan 3 is driven by the propellent force of N 2 , hereby cool air from the cooler 2 is circulated compulsorily into the refrigerator 1. This mechanism permits to simplify the apparatus and to reduce the cost. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S62227500-A (JP)
Title: Method for treating activated sludge of waste water with submerged aeration
Inventor: KIMOTO KAZUO
IPC: C02F3/22
Filed: 1986-03-28
Abstract: PURPOSE:To prevent the generation of secondary public nuisance, by introducing raw waste water into a submerged aeration tank while introducing high conc. oxygen into the rising plug flow of waste water in the tank to perform the treatment of waste water. CONSTITUTION:Raw waste water 1 is introduced into the bottom part of a submerged aeration tank 2 to form plug flow directing upwardly from the bottom part of the aeration tank 2 along with return sludge 5 returned from the bottom part of a sedimentation tank 3 by a return sludge pump 4. Then, high conc. oxygen 6 is supplied in the plug flow of the raw waste water through an air diffusion pipe 9. Subsequently, the raw water after microbiological treatment is separated into sludge and supernatant water. The sludge 5 is again returned to the aeration tank 2 while supernatant water 10 receives the removal treatment of SS to be discharged to rivers in a discharge amount wall-balanced with raw water 1 introduced into the aeration tank 2.
Patent JP-H05234095-A (JP)
Title: Optical disk player
Inventor: YANAGAWA NAOHARU
IPC: G11B7/085
Filed: 1992-02-21
Abstract: PURPOSE:To obstruct deterioration of recording density of an optical disk, and also, to improve reliability of an apparatus. CONSTITUTION:Information of a reflection factor of a light beam, etc., in the respective recorded areas and unrecorded areas of a reproducing exclusive disk such as a CD, etc., and disks of a DRAW (Direct Read After Write) type and a rewritable type is stored in advance in a memory 21, and at the time of reproduction, when it is detected that an optical pickup reaches the unrecorded area, a system controller 14 stops immediately a servo operation of a tracking servo 11, a focus servo 12 and a carriage servo 15. Accordingly, for instance, in the case of a recordable high density disk, it becomes unnecessary to secure an alternate sector or a TOC area for writing information corresponding to the contents. Also, even in the case the area corresponding to the contents is broken down due to a certain cause as before, the disk itself can be used. Moreover, when the information is reproduced, even in the case the optical pickup reproduces its unrecorded part, a runaway of the optical pickup is prevented.
Patent JP-S59197173-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: ISHII YOSHIMASA
IPC: H01L29/78
Filed: 1983-04-25
Abstract: PURPOSE:To obtain a high speed IGFET by a method wherein an inverted trapezoidal recessed groove is provided on the surface of a semiconductor substrate surrounded by an oxide film, a gate electrode is buried in said groove through the intermediary of a gate oxide film, the gap located between the gate electrode and the recessed groove is filled up using an oxide film, and a source and drain region is formed in the substrate using said electrode as a mask, thereby enabling to prevent the overlapping of the gate electrode and the source and drain region. CONSTITUTION:A thick field oxide film 12 is formed on the circumferential part of a P type Si substrate 11, a thin oxide film 13 is coated on the substrate 11 surrounded by the field oxide film 12, an aperture is provided, and a concaved groove 15 having the inverted trapezoidal cross-section is formed on a channel region. Then, the film 13 is removed, a gate electrode 17 consisting of polycrystalline Si is buried in the groove 15 through the intermediary of a gate oxide film 16, and an oxide film 18 is filled up in the gap between the electrode and the groove. Subsequently, N<+> type source and drain regions 19 and 20 are formed in the substrate 11 using the electrode 17 as a mask, and both ends of the source and drain regions 19 and 20 are advanced to the point located below the films 12 and 18 by performing an activating process.
Patent JP-H06289253-A (JP)
Title: Method for mounting optical connector ferrule
Inventor: UCHIDA TERUYOSHI
IPC: G02B6/40
Filed: 1993-03-30
Abstract: PURPOSE:To provide the heating method which is good in efficiency and does not affect quality by separating a transporting means line for optical fiber cords and transporting means line for ferrules, driving these lines in synchronization and heating the ferrules and adhesives. CONSTITUTION:Wires 16 are held by means of pulleys 17 and are guided by guide pulleys 18 so as not to be disengaged Further, the pulleys 17 are connected to supporting pulleys 19 of a conveyor 12 for transporting the optical fiber cords 1. The wires 16 are heated, by which the ferrules 7 placed thereon are heated as well. Since the pulleys 17 are connected to the pulleys 19 for supporting the conveyor 12, the movements of the wires 16 and the conveyor 12 are synchronized. Namely, the optical fiber cords 1 set on the conveyor 12 and the ferrules 7 placed on the wires 16 are not deviated in the relative motions and, therefore, troubles in rotation, etc., of the ferrules 7 do not arise.
Patent JP-S61230341-A (JP)
Title: Manufacture of semiconductor device
Inventor: SATO JUNICHI
IPC: H01L21/3205
Filed: 1985-04-05
Abstract: PURPOSE:To enable a through hole having gently inclined side faces to be formed simultaneously with the shaping of an insulation film, by etching the insulation film to form gently inclined faces in the insulating portion, covering it with a second mask layer and etching the projection of the insulating portion to form the through hole. CONSTITUTION:An insulation film 3 is etched such that the projection 3b of the insulation film 3 projected according to the thickness of a wiring layer 2 has gently inclined side faces 3a. The portion of the insulation film 3 provided with a mask layer 4 is formed, by etching, into a projection 32 having gentle inclination 31. Since the mask layer 4 is also etched to some extent during this etching, the contact area between the mask layer 4 and the insulation film 3 is reduced while, simultaneously, the projection 32 having the gentle inclination 31 formed is left. The etched insulation film 3 including the projection 32 is covered with a second mask layer 5 so as to provide a flat surface. Subsequently, the upper portion of the projection 32 is etched away to form a through hole 6. During this etching, the gentle inclination 31 is reproduced in the through hole 6, being turned upside down. Thus, the side walls 61 of the through hole 6 is shaped into gentle inclination. In this manner, the shaping of the insulation film can be performed simultaneously with the formation of a through hole having gentle inclination.
Patent JP-S60216918-A (JP)
Title: Extrusion method of aluminum solid section
Inventor: KAWAI MITSUHIRO
IPC: B21C23/08
Filed: 1984-04-11
Abstract: PURPOSE:To form an aluminum solid section having an uniform color tone after anodizing treatment by providing a turbulent flow condition to a metal, flowing toward a forming hole, in extruding a billet through the forming hole of a die. CONSTITUTION:A distribution member 7 equipped with plural entry ports 8 and a large-diameter recessed part 9 located at the outlet side of entry ports 8, is arranged at the front side of a die 2. When a billet 3 is pressed against the member 7 by a press ram 5, the metal is kneaded and forged in the stages of being distributed at the entry ports 8 and joined together at the recessed part 9 to flow to the hole 1.
Patent JP-H06285824-A (JP)
Title: Casting mold and method of releasing molded body
Inventor: OKA NAOKI
IPC: B28B1/26
Filed: 1993-03-30
Abstract: PURPOSE:To obtain a molded body without generating cracks or deformations by making the mold releasing hard part thinner than the mold releasing easy part in the thickness of a molding surface layer and thereby permitting both the mold release parts to be released at almost the same time in a casting mold comprising at least a porous molding surface layer and porous carrying layer and having a mold releasing hard part and mold releasing easy part. CONSTITUTION:The casting mold is made up of a molding surface layer 1 and a carrying layer 2, and the molded body 3 is cast-molded within the molding surface layer 1. The molding surface layer 1 can be changed in its thickness according to the shape of the molded body 3, e.g. the mold releasing hard part such as a moving blade dovetail part or valve shade part is made thinner in its thickness, and the mold releasing easy part such as a moving blade part or valve shaft part is made thicker in its thickness. In this manner, when mold release is carried out by air blow, the amount of air blown out of the mold releasing hard part is made greater than that of the mold releasing easy part, so that mold release is effected at almost the same time.
Patent JP-H07256328-A (JP)
Title: Method for lubricating outside surface in seamless pipe production
Inventor: SATO KATSUJI
IPC: C10M173/02
Filed: 1994-03-16
Abstract: PURPOSE:To suppress generation of the shoe marks occurring caused by seizure of guide shoes in piercing in seamless pipe production. CONSTITUTION:This method for lubricating outside surfaces in seamless pipe production comprises piercing the material to be rolled while spraying and applying a lubricant consisting of an aq. soln. contg. 10 to 60mass% metal oxide powder having a grain size of <=2mm and 10 to 50mass% sodium silicate as a solid content and having a viscosity of 200 to 5000 centipoises or the lubricant contg. >=1 kinds of 2mass% dispersant or thickener in the lubricant described above onto the outside surface of the material to be rolled on the inlet side of a piercer. The time after the lubricant is sprayed and applied on the outside surface of the material to be rolled before the material to be rolled is pierced is specified to >=5 seconds.
Patent JP-S55164762-A (JP)
Title: Intake-air heater for internal-combustion engine
Inventor: ITOU TOSHIHIKO
IPC: F02M31/12
Filed: 1979-06-08
Abstract: PURPOSE: To facilitate the starting of an internal-combustion engine and reduce waste of an electric power for heating elements by providing a plurality of heating elements made of ceramics having a positive resistance temperature characteristic on a suction pipe wall and selectively using them.  
     CONSTITUTION: In a bottom of a suction air passage 1 in a downstream of a throttle valve T, a thin metal plate 2 is provided, which is used as a heating plate having a heat riser surface. A back surface of the plate 2 is provided with a plurality of heating elements 4a and 4b comprising PTC elements. Terminals 52a and 52b of the heating elements are connected to a water temperature switch S 1  through a relay (not shown in the figure). At an extremely low temperature, both of the heating elements are operated, at a temperature above that, either one of them is operated, and at a much higher temperature than the latter, power to both of them is disconnected. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H1010258-A (JP)
Title: Water rod for fuel bundle of boiling water reactor and nuclear fuel bundle
Inventor: JOHANSSON ERIC BERTIL
IPC: G21C3/326
Filed: 1997-03-26
Abstract: PROBLEM TO BE SOLVED: To provide a water rod and nuclear fuel bundle for the fuel bundle of a boiling water reactor wherein nuclear reactor output and the vibration of flow is controlled to bring a more stable operation point. SOLUTION: A water rod 58 for the fuel bundle of a boiling water reactor includes an upper end 62, an outside tube 60 having a lower end 64 supported on a support structure, at least a coolant inlet opening 76 provided in the lower end 64, at least a coolant outlet opening 78 provided in the upper end 62 and an inside tube 80 upwardly extending from the lower end 64, and sized and disposed so as to receive the whole coolant passing at least one coolant inlet opening 76. The inside tube 80 has a smaller cross sectional area than the cross sectional area for the main length part of the outside tube 60, and a chamber 86 is formed between the outside tube 60 and the inside tube 80. The inside tube 80 has an open upper end 84 terminating at a place not reaching the upper end 62.
Patent JP-H05230383-A (JP)
Title: Water absorbing resin and method for absorbing water
Inventor: TAKAHASHI AKIRA
IPC: C08L101/00
Filed: 1992-02-24
Abstract: PURPOSE:To obtain the subject resin useful as paper diaper and in the field of agriculture and civil engineering, exhibiting excellently water absorbing ability even in an aqueous solution of an electrolyte, comprising an anionic water-soluble polymer electrolyte and a cationic water-soluble polymer electrolyte, etc., as a random copolymer. CONSTITUTION:The objective resin comprising an anionic water-soluble polymer electrolyte [e.g. sodium poly(meth)acrylate or sodium poly 2,2-acrylamido-2- methylsulfonate] and a cationic water-soluble polymer electrolyte [e.g. polymer comprising dimethylaminoethyl (meth)acrylate] wherein at least one of the electrolytes is a random copolymer.