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11. 发明专利

JPH0945586A ELECTIC DOUBLE LAYER CAPACITOR 失效
公开(公告)号：JPH0945586A
公开(公告)日：1997-02-14
申请号：JP19454995
申请日：1995-07-31
申请人： MATSUSHITA ELECTRIC IND CO LTD , NIPPON KODOSHI CORP
发明人： MURANAKA TAKAYOSHI , USHIMOTO JIYUNICHI , UEDA MASAHIKO
IPC分类号： H01G9/02
摘要： PROBLEM TO BE SOLVED: To provide an electric double layer capacitor with decreased fraction defective due to short, with decreased internal resistance, and with improved initial characteristics and improved electrical characteristics after long term use. SOLUTION: This condenser has a pair of polarizable electrodes 11a, 11b, a separator 12 interposed between this pair of polarizable electrodes 11a, 11b, and an electrolyte with which the pair of polarizable electrodes 11a, 11b and the separator 12 are impregnated, and this capacitor uses solvent spinning rayon and sisal pulp which is natural fiber as the raw material of the separator 12, and the separator 12 is constructed by sheet making these.

12. 发明专利

JP2001110678A ELECTRIC DOUBLE-LAYER CAPACITOR 失效
公开(公告)号：JP2001110678A
公开(公告)日：2001-04-20
申请号：JP28371999
申请日：1999-10-05
申请人： NIPPON KODOSHI CORP , KEE KK
发明人： KURIBAYASHI ISAO , UEDA MASAHIKO
IPC分类号： H01G9/02
摘要： PROBLEM TO BE SOLVED: To provide an electric double-layer capacitor which enables capacitance increase, reliability improvement and performance improvement by a method, wherein a separator having multi-component copolymer which contains propylene, tetrafluoroethylene and vinylidene fluoride as indispensable components and is impregnated with electrolyte is used as a separator for separating a pair of polarizable electrodes from each other. SOLUTION: A pair of porarizable electrodes of an electric double-layer capacitor are separate from each other by a separator. The separator of the electric double-layer capacitor is made of a multi-component copolymer which contains propylene, tetrafluoroethylene and vinylidene fluoride as indispensable components and is impregnated with an electrolyte. Also, the separator to the electric double-layer capacitor comprises a carrier, which carries multi- component copolymer containing propylene, tetrafluoroethylene and vinulidene fluoride as indispensable components and is impregnated with electrolyte.

13. 发明专利

JPH05251274A 失效
公开(公告)号：JPH05251274A
公开(公告)日：1993-09-28
申请号：JP8287192
申请日：1992-03-03
申请人： NIPPON KODOSHI CORP
发明人： UEDA MASAHIKO , MIZOBUCHI TAIJI , WADA HIROAKI , USHIMOTO JIYUNICHI
IPC分类号： H01G9/02
摘要： PURPOSE:To provide an electrolytic capacitor which is improved in impedance characteristics without a decrease in withstanding voltage by a method wherein an electrolytic paper is interposed between a positive electrode foil and a negative electrode foil, where an electrolytic paper containing inorganic fine particles is especially used in an electrolytic capacitor of intermediate or high voltage type. CONSTITUTION:An electrolytic paper is interposed between a positive electrode foil and a negative electrode foil to constitute an electrolytic capacitor, where the electrolytic paper contains inorganic fine particles. The inorganic fine particle as inorganic filter is spherical, 0.01-20mum in diameter and its content is 1-60%.

14. 发明专利

JP2000003834A ELECTRIC DOUBLE-LAYER CAPACITOR 失效
公开(公告)号：JP2000003834A
公开(公告)日：2000-01-07
申请号：JP16802298
申请日：1998-06-16
申请人： NIPPON KODOSHI CORP
发明人： UEDA MASAHIKO , KUBO JUN , YAMAZAKI YASUHISA , KUBO KOSEI
IPC分类号： H01G9/02
摘要： PROBLEM TO BE SOLVED: To provide an electric double-layer capacitor, which improves characteristics such as reduction of failure caused by short-circuiting and reduction of inner resistance at high levels, and realizes high voltage energy density by using a new separator which uses beating material of solvent spinning cellulose fiber capable of beating and satisfies both the denseness and ion permeability, as a separator which separates a pair of polarizable electrodes. SOLUTION: In this electric double-layer capacitor, where a pair of polarizable electrodes are separated with a separator, the separator is paper-formed by using beating material of solvent spinning cellulose fiber, capable of beating in the range of 6-100 wt.% as a material. The beating material of solvent spinning cellulose fiber capable of beating is beaten up to CSF 200-0 cc. The thickness of the separator is set to 20-10 μm, and the density is set to 0.25-0.60 g/cm3.

15. 发明专利

JPH10334742A KRAFT PAPER FOR INSULATION, PLASTIC LAMINATED PAPER USING IT AND OIL IMPREGNATED POWER CABLE 失效
公开(公告)号：JPH10334742A
公开(公告)日：1998-12-18
申请号：JP14055997
申请日：1997-05-29
申请人： FUJIKURA LTD , NIPPON KODOSHI CORP
发明人： TAKAHASHI SUSUMU , MIYATA HIROYUKI , IINUMA KOICHI , TAUCHI TATSUJI , USHIMOTO JIYUNICHI , UEDA MASAHIKO
IPC分类号： B32B27/10 , B32B29/00 , D21H11/00 , D21H11/04 , D21H27/12 , H01B3/52 , H01B9/00
摘要： PROBLEM TO BE SOLVED: To easily obtain a kraft paper for insulation having excellent electrical and mechanical characteristics suitable for an oil impregnated power cable. SOLUTION: A low pentosan containing pulp the pentosan content of which is 3% or less and the Kappa number of which is 10 or less is mixed with a medium pentosan containing pulp the pentosan content of which ranges from 4 to 9% and the Kappa number of which ranges from 15 to 40 so as to obtain such a mixed pulp that its pentosan content ranges from 3 to 5.5% and its Kappa number ranges from 8 to 25, and this mixed pulp are made paper in a deionized water. Both to the low pentosan containing pulp and the medium pentosan containing pulp are a conventional type pulp.

16. 发明专利

JPH06168848A ELECTROLYTIC CAPACITOR 失效
公开(公告)号：JPH06168848A
公开(公告)日：1994-06-14
申请号：JP34151892
申请日：1992-11-27
申请人： NIPPON KODOSHI CORP
发明人： USHIMOTO JIYUNICHI , TAUCHI TATSUJI , WADA HIROAKI , UEDA MASAHIKO , MIZOBUCHI TAIJI
IPC分类号： H01G9/02
摘要： PURPOSE:To provide an electrolytic capacitor in which the impregnability of an electrolyte and impedance characteristics are improved while the resistance to withstand voltage (breakdown voltage) and the short failure rate are maintained and improved, particularly, in the electrolytic capacitor for medium and high voltage concerning the electrolytic capacitor constructed by placing an electrolytic paper between an anode foil and a cathode foil. CONSTITUTION:In an electrolytic capacitor constructed by placing an electrolytic paper between an anode foil and a cathode foil, the electrolytic paper is constructed by stacking a high density layer formed in a paper layer by a long net paper machine and a low density layer formed in a paper layer by a circular net paper machine on a paper machine. In this case, the thickness of the high density layer is 10 to 50mum and the density is 0.88 to 1.00g/cm , and the thickness of the low density layer is 10 to 60mum and the density is 0.20 to 0.40g/cm , and the total thickness of the electrolytic paper is 20 to 110mum and the total density is 0.50 to 0.80g/cm .

17. 发明专利

JPH05291080A 失效
公开(公告)号：JPH05291080A
公开(公告)日：1993-11-05
申请号：JP11793592
申请日：1992-04-10
申请人： NIPPON KODOSHI CORP
发明人： UEDA MASAHIKO , MIZOBUCHI TAIJI , WADA HIROAKI , USHIMOTO JIYUNICHI
IPC分类号： H01G9/02
摘要： PURPOSE:To improve an electrolytic capacitor in impedance characteristics without making it deteriorate in withstand voltage and increase in fraction defective due to short circuits by a method wherein an electrolytic paper containing organic fine powder is used in the capacitor, where the electrolytic capacitor of intermediate or high voltage is composed of an anode foil, a cathode foil, and an electrolytic paper interposed between the foils. CONSTITUTION:An electrolytic capacitor is composed of an anode foil, a cathode foil, and an electrolytic paper interposed between the foils, where the electrolytic paper contains organic fine powder. The organic powder is round, as small as 0.01-20mum in diameter, and in the mixing ratio 1-70%.

18. 发明专利

JPH05251273A 失效
公开(公告)号：JPH05251273A
公开(公告)日：1993-09-28
申请号：JP8287092
申请日：1992-03-03
申请人： NIPPON KODOSHI CORP
发明人： MIZOBUCHI TAIJI , UEDA MASAHIKO , WADA HIROAKI , USHIMOTO JIYUNICHI
IPC分类号： H01G9/02
摘要： PURPOSE:To provide an electrolytic capacitor which is improved in impedance characteristics without a decrease of withstanding voltage by a method wherein an electrolytic paper is interposed between a positive electrode foil and a negative electrode foil, where an electrolytic paper containing whiskers is especially used in an electrolytic capacitor of intermediate or high voltage type. CONSTITUTION:An electrolytic paper is interposed between a positive electrode foil and a negative electrode foil to constitute an electrolytic capacitor, where the electrolytic paper contains inorganic filler. The inorganic filler is whisker of 1-10mum diameter and its content is 1-6%.

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