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公开(公告)号：JPH09293511A
公开(公告)日：1997-11-11
申请号：JP16764996
申请日：1996-06-27
Applicant: TORAY INDUSTRIES
Inventor： INOUE GAKUJI , SAKUMA ISAMU , SHIMOYAMA NAOKI , OKA TETSUO , TANIGUCHI MASAHIDE , HASHISAKA KAZUHIKO , TSUKAMOTO JUN
Abstract: PROBLEM TO BE SOLVED: To provide an electrode with high discharging capacity and high repeating charging/discharging characteristics by using carbon fibers in which the ratio of oxygen atoms to carbon atoms in the vicinity of the surface is specified and the size of a crystallite is specified as an active material. SOLUTION: As the active material of the electrode of a secondary battery, carbon fiber powder capable of pouring/releasing lithium ions is used. The carbon fibers in which the ratio of oxygen atoms to carbon atoms in the vicinity of the surface is 10% or less, preferably 6% or less, and preferably the ratio of nitrogen atoms to carbon atoms is 3% or less, and the size of crystallite (LC) is 1.0-5.0nm, preferably 1.0-2.5nm are used. The carbon fibers are obtained by forming amorphous carbon fibers in short fibers if necessary, then heat- treating the amorphous carbon fibers under the atmosphere of reduced pressure and/or the inert gas atmosphere at 700-1600 deg.C, preferably at 1000-1500 deg.C for one minutes to 50 hours, preferably 30 minutes to 8 hours.
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公开(公告)号：JPH0963571A
公开(公告)日：1997-03-07
申请号：JP20973895
申请日：1995-08-17
Applicant: TORAY INDUSTRIES
Inventor： OKA TETSUO
IPC: D01F9/22 , H01M2/26 , H01M2/30 , H01M4/133 , H01M4/24 , H01M4/587 , H01M10/04 , H01M10/05 , H01M10/0587 , H01M4/02 , H01M10/40
Abstract: PROBLEM TO BE SOLVED: To make characteristics uniform over the whole surface of the coated part of a negative electrode sheet by stacking a conductive body on the surface side of the outermost negative electrode of a battery electrode body. SOLUTION: A current collector 1 is made of a metal foil such as a copper foil. An electrode mix 2 is prepared by kneading an active material such as milled carbon fibers together with a binder, a conductive material, and a solvent to disperse them to form negative electrode past, then the negative electrode past is applied to the both surfaces of the current collector 1 in a coating process, dried, then rolled to obtain a negative electrode sheet, and the negative electrode sheet is slit in the specified width. A conductive body 3 is the same material as the current collector 1, that is a metal foil such as a copper foil for example, and connected to the uncoated part at the end in the width direction of the current collector 1 in a process such as welding.
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公开(公告)号：JPH08102315A
公开(公告)日：1996-04-16
申请号：JP23526694
申请日：1994-09-29
Applicant: TORAY INDUSTRIES
Inventor： NAKAE TAKEJI , SUZUKI TATSUHIKO , OKA TETSUO
Abstract: PURPOSE: To provide a battery electrode at low cost and increase discharge capacity by forming a positive electrode and/or a negative electrode with carbon fibers and arranging the electrode using carbon fibers on the outermost side. CONSTITUTION: A positive electrode 3 and/or a negative electrode 1 are/is made of carbon fibers and the electrode using carbon fibers is arranged on the outermost side. As the carbon fiber for the negative electrode 1, PAN family carbon fiber with high lithium ion doping capability is used. The electrode using carbon fiber is preferable to be formed in a cloth or a stretched sheet either one is optionally selected, and has a diameter of 1-20μm. When the carbon fiber is used in the negative electrode, the positive electrode is constituted with a positive active material 3 and a positive current collector 4. Since the thicker current collector decreases the the amount of the active material, use of metal foil is preferable. By arranging the electrode using carbon fiber on the outermost side, the amount of expensive transition metal oxide can be decreased.
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公开(公告)号：JPH07130643A
公开(公告)日：1995-05-19
申请号：JP29435393
申请日：1993-10-28
Applicant: TORAY INDUSTRIES
Inventor： MIYAMOTO MASASUKE , OKA TETSUO
IPC: G03F7/16 , C08J5/18 , C23C14/12 , G03F7/26 , H01L21/027
Abstract: PURPOSE:To provide a thin film forming equipment and a thin film forming method which can form an antireflection film having a uniform thickness even in the case where a complicated step-difference exists on a substrate. CONSTITUTION:After the pressure is reduced by discharging the gas in a reaction vessel 20 with an exhaust means 30a, catalyst and monomar are supplied in order in the reaction vessel 20 by a gaseous supply means 30b, 30c, and finally inert gas is supplied in the reaction vessel with an inert gas supplying means 30d.
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公开(公告)号：JPH0757998A
公开(公告)日：1995-03-03
申请号：JP20406793
申请日：1993-08-18
Applicant: TORAY INDUSTRIES
Inventor： OKA TETSUO , ICHIJO TSUTOMU , TANAKA KAZUO
IPC: C30B25/14 , G03F7/11 , H01L21/027
Abstract: PURPOSE:To form a polymer thin film having uniform thickness by reducing the pressure in a reactor to a level higher than a specific level. CONSTITUTION:A plurality of substrates are disposed in a holder 4 within a reactor 1 which is then evacuated. When a predetermined pressure is reached, an exhaust valve 5 is closed to stop evacuation. A gas valve 7 is then opened to introduce a predetermined quantity of catalyst. Subsequently, a gas valve 8 is opened to introduce a predetermined quantity of monomer into the reactor 1 thus forming a polymer thin film on the substrate. In this regard, inner pressure of the reactor 1 is reduced to a level higher than about 1Torr when the catalyst and monomer are introduced. Preferably, the inner pressure is reduced to a level in the range of 10-500Torr. This method allows simultaneous formation of polymer thin film having uniform thickness on the plurality of substrates.
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Patent Agency Ranking
公开(公告)号：JPH06216021A
公开(公告)日：1994-08-05
申请号：JP612393
申请日：1993-01-18
Applicant: TORAY INDUSTRIES
Inventor： OKA TETSUO , TSUKAMOTO JUN , TANAKA KAZUO
IPC: G03F7/11 , H01L21/027
Abstract: PURPOSE:To obtain the lower layer thin film for radioactive sensitivity resist with which a microscopic resist pattern having stabilized workability by a method wherein, after a reactor has been decompressed, a vaporized catalyzer and a monomer are introduced into the reactor in an evacuation stopped state. CONSTITUTION:After a substrate has been arranged on a susceptor 4, a reactor 1 is decompressed by evacuation using an air exhauster. When the reactor 1 reached 10 Torr, an exhaust valve 5 is closed, and the evacuation is stopped. When the work is proceeded to the following process in the state of evacuation, a catalizer is desorbed. After the prescribed quantity of catalyzer has been introduced by opening a gas valve 7, the gas valve 7a is closed and the introduction of the catalyzer is stopped. Then, a gas valve 8 is opened, the prescribed quantity of monomer is introduced into the reactor 1, and a polymer thin film is formed on the substrate. After the prescribed quantity of monomer has been introduced, the gas valve 8 is closed. As a result, the mixture of the impurities such as moisture and the like can be prevented.
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公开(公告)号：JPH03202462A
公开(公告)日：1991-09-04
申请号：JP34115689
申请日：1989-12-28
Applicant: TORAY INDUSTRIES , TOYO METALIZING
Inventor： AKAMATSU TAKAYOSHI , NONAKA HARUKI , OKA TETSUO
Abstract: PURPOSE:To stably produce a foil material having large electrostatic capacity by specifying the initial incident angle of a metallic vapor with respect to a base material and turning an inert gas on the incident region of the vapor upon the base material from the downstream side in the traveling direction of the base material. CONSTITUTION:A vapor composed of at least one metal selected from Al, Ti, Zr, Ta, Nb, and Hf or alloy thereof is turned on a base material traveling along a cylindrical drum 1, by which an electrode foil for electrolytic capacitor is formed. At this time, the initial incident angle of the vapor with respect to the base material is set up in the range of 45-90 deg.. It is preferable that the incident region of the vapor upon the base material has a practically hermetically sealed structure, excluding an opening between the lateral end 6 which is positioned on the downstream side in the traveling direction of the base material of a mask 3 and the end 10 which is positioned on the upstream size in the traveling direction of the base material of a mask 4. An inert gas is supplied into the above-mentioned practically hermetically sealed region by means of a nozzle, from the downstream side in the traveling direction of the base material toward the incident region of the vapor upon the base material.
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公开(公告)号：JPS63244313A
公开(公告)日：1988-10-11
申请号：JP7782787
申请日：1987-03-31
Applicant: TORAY INDUSTRIES
Inventor： OKA TETSUO , HAYASHI KENJI
Abstract: PURPOSE:To improve the modulation of a magnetic recording medium by disposing gas supplying chambers in common use as evaporating vapor flow guiding chambers which are disposed to face respective evaporation sources and have masks to control the incident angle of the vapor flows evaporating from the evaporation sources to a substrate at
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公开(公告)号：JPS63181115A
公开(公告)日：1988-07-26
申请号：JP1230387
申请日：1987-01-23
Applicant: TORAY INDUSTRIES
Inventor： HORIUCHI SATORU , HAYASHI KENJI , OKA TETSUO
Abstract: PURPOSE:To obtain a high-density recording characteristic when the titled medium is used in combination with a ring type head by specifying the coercive force measured with respect to an angle between the traveling direction of the head and magnetic field within the plane inclusive of the normal direction of a substrate surface and the traveling direction of the head. CONSTITUTION:Hc(theta) is required to satisfy equation I and equation II when the coercive force measured with the angle between the traveling direction of the head and the measuring magnetic field as theta in the plane inclusive of the normal direction of the substrate surface and the traveling direction of the head is designated is Hc(theta). The excellent recording density characteristic is obtainable only when the above-mentioned two equations are simultaneously satisfied.
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公开(公告)号：JPS63138519A
公开(公告)日：1988-06-10
申请号：JP28417486
申请日：1986-12-01
Applicant: TORAY INDUSTRIES
Inventor： OKA TETSUO , HAYASHI KENJI , AKAMATSU TAKAYOSHI
Abstract: PURPOSE:To increase reproduction output at the time of executing recording and reproducing with a ring head by using crystalline Co as the Co to be incorporated into a perpendicularly magnetized layer. CONSTITUTION:The perpendicularly magnetized layer essentially consisting of the Co and the oxide thereof is formed on a substrate (e.g.: PE terephthalate film) and the Co in said film is made crystalline. The crystalline Co in the magnetized layer is hexagonal and the dispersion angle ( theta50) of the C axis is preferably
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