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71. 发明专利

GB2155954A COATED METAL ELECTRODES FOR ELECTROLYSIS 未知
公开(公告)号：GB2155954A
公开(公告)日：1985-10-02
申请号：GB8504994
申请日：1985-02-27
申请人： PERMELEC ELECTRODE LTD
发明人： ASANO HIROSHI , SHIMAMUNE TAKAYUKI , HIRAO KAZUHIRO , HIRAYAMA RYUTA
IPC分类号： C25B11/00 , C25B11/04 , C25B11/10 , C25C7/02 , C25D17/10
摘要： An electrolytic electrode which exhibits high durability when used in electrochemical processes in which the generation of oxygen is involved and a process for the production of the same. The electrolytic electrode comprises (a) an electrode substrate of an electrically-conductive metal; (b) an electrode coating of an electrode active substance; and (c) an intermediate layer provided between the electrode substrate (a) and the electrode coating (b), wherein the intermediate layer (a) comprises a mixed oxide of: (i) an oxide of at least one member selected from the group consisting of titanium (Ti) and tin (Sn), each having a valence number of 4, and (ii) an oxide of at least one member selected from the group consisting of aluminum (Al), gallium (Ga), iron (Fe), cobalt (Co), nickel (Ni) and Thallium (Tl), each having a valence number of 2 or 3, and platinum (Pt) dispersed in said mixed oxide.

72. 发明专利

DE3507072A1 未知
公开(公告)号：DE3507072A1
公开(公告)日：1985-09-12
申请号：DE3507072
申请日：1985-02-28
申请人： PERMELEC ELECTRODE LTD
发明人： ASANO HIROSHI , SHIMAMUNE TAKAYUKI , HIRAO KAZUHIRO , HIRAYAMA RYUTA
IPC分类号： C25B11/00 , C25B11/04 , C25B11/10 , C25C7/02 , C25B1/02
摘要： An electrolytic electrode which exhibits high durability when used in electrochemical processes in which the generation of oxygen is involved and a process for the production of the same. The electrolytic electrode comprises (a) an electrode substrate of an electrically-conductive metal; (b) an electrode coating of an electrode active substance; and (c) an intermediate layer provided between the electrode substrate (a) and the electrode coating (b), wherein the intermediate layer (a) comprises a mixed oxide of: (i) an oxide of at least one member selected from the group consisting of titanium (Ti) and tin (Sn), each having a valence number of 4, and (ii) an oxide of at least one member selected from the group consisting of aluminum (Al), gallium (Ga), iron (Fe), cobalt (Co), nickel (Ni) and Thallium (Tl), each having a valence number of 2 or 3, and platinum (Pt) dispersed in said mixed oxide.

73. 发明专利

FR2560610A1 未知
公开(公告)号：FR2560610A1
公开(公告)日：1985-09-06
申请号：FR8503065
申请日：1985-03-01
申请人： PERMELEC ELECTRODE LTD
发明人： ASANO HIROSHI , SHIMAMUNE TAKAYUKI , HIRAO KAZUHIRO , HIRAYAMA RYUTA
IPC分类号： C25B11/04 , C25B11/06 , C25B11/10 , C25C7/02 , H01M4/00 , H01M4/66 , C23C18/02
摘要： An electrolytic electrode which exhibits high durability when used in electrochemical processes in which the generation of oxygen is involved and a process for the production of the same. The electrolytic electrode comprises (a) an electrode substrate of an electrically-conductive metal; (b) an electrode coating of an electrode active substance; and (c) an intermediate layer provided between the electrode substrate (a) and the electrode coating (b), wherein the intermediate layer (c) comprises a mixed oxide of (i) an oxide of at least one member selected from the group consisting of titanium (Ti) and tin (Sn), each having a valence number of 4, in an amount of 60 to 95% by weight based on the weight of metal, and (ii) an oxide of at least one member selected from the group consisting of aluminum (Al), gallium (Ga), iron (Fe), cobalt (Co), nickel (Ni) and Thallium (Tl), each having a valence number of 2 or 3, in an amount of about 5 to about 40% by weight based on the weight of metal.

74. 发明专利

FR2542763A1 未知
公开(公告)号：FR2542763A1
公开(公告)日：1984-09-21
申请号：FR8404143
申请日：1984-03-16
申请人： PERMELEC ELECTRODE LTD
发明人： ASANO HIROSHI , SHIMAMUNE TAKAYUKI , HIRAO KAZUHIRO
IPC分类号： C02F1/14 , C25B1/46 , C25B15/00 , C25B1/14
摘要： A method for electrolyzing a dilute caustic alkali aqueous solution in an electrolytic cell partitioned by a cation exchange membrane using iron, nickel or their base alloys as an electrode, and an apparatus thereof whereby the polarities of the electrodes are periodically reversed.

75. 发明专利

JPH06240482A ELECTROLYTIC CELL USING GAS ELECTRODE AND ELECTROLYTIC METHOD 失效
公开(公告)号：JPH06240482A
公开(公告)日：1994-08-30
申请号：JP5523493
申请日：1993-02-18
申请人： PERMELEC ELECTRODE LTD , NORA PERUMEREKU SPA DE
发明人： HIRAO KAZUHIRO , NAKAJIMA YASUO , KAWAGUCHI YOSHIYUKI , MOCHIZUKI KOJI
IPC分类号： C25B1/46 , C25B1/16 , C25B1/22 , C25B9/00 , C25B9/08 , C25B11/10 , C25B15/00
摘要： An electrolytic cell of horizontal type constructed such that the electrolytic cell proper is divided horizontally by one or two ion exchange membranes. If one ion exchange membrane is used, the cell is divided into a cathode and an anode compartment holding a gas electrode. If two ion exchange membranes are used, the cell is divided into a cathode compartment, an intermediate compartment, and an anode compartment. This arrangement permits the gas electrode and the current collector to be in contact with each other under a uniform pressure, and also allows for smooth gas discharge. This leads to a reduction in the electrolytic potential of the cell.

76. 发明专利

JPH0499899A PLATING DEVICE 失效
公开(公告)号：JPH0499899A
公开(公告)日：1992-03-31
申请号：JP21563790
申请日：1990-08-15
申请人： ALMEX INC , PERMELEC ELECTRODE LTD
发明人： USUDA HITOSHI , YAMAKAWA YOSHINAGA , UENO KENICHI , HIRAO KAZUHIRO
IPC分类号： C25D17/12 , C25D7/00 , C25D21/00 , C25D21/12
摘要： PURPOSE:To perform high-quality plating treatment with high efficiency by forming an anode of a plurality of insoluble electrode elements and providing both a selective setting means and a selective feeding means and supplying electricity to only the selected insoluble electrode elements. CONSTITUTION:An anode 3 is formed into a plate shape consisting of a plurality of insoluble electrode elements 3A arranged in a matrix. The insoluble electrode element 3A to be supplied with electricity is selected and set by a selective setting means 10. Only the insoluble electrode element 3A selected by a selective feeding means 20 is connected to a power source device 30. A plating device is constituted so that the electricity conductive amount per unit area of a plate- shaped plating object is selected and automatically regulated. Thereby the plating device is automatically regulated to the required current distribution in comformity with the plating object.

77. 发明专利

JPH0445233A METHOD FOR DISSOLVING COPPER 失效
公开(公告)号：JPH0445233A
公开(公告)日：1992-02-14
申请号：JP15126790
申请日：1990-06-08
申请人： PERMELEC ELECTRODE LTD
发明人： UENO KENICHI , HIRAO KAZUHIRO
IPC分类号： C22B15/00
摘要： PURPOSE:To rapidly dissolve metallic copper and to prepare a copper soln. having relatively high concn. by putting the metallic copper in a basket made of a material coated with a platinum family metal or the oxide thereof and immersing the metallic copper in a dissolving liq. CONSTITUTION:When a dissolving liq. such as a copper plating soln. is fed into a basket contg. metallic copper and this metallic copper is immersed in the dissolving liq. and dissolved to obtain a copper soln., the basket is made of a material obtd. by coating a base metal proof against the dissolving liq., e.g., titanium with a platinum family metal or the oxide thereof. The metallic copper is preferably dissolved while blowing air or oxygen. Metallic copper and a platinum family metal or the oxide thereof may be put in a basket and immersed in the dissolving liq. The dissolution of the metallic copper is accelerated and a copper soln. having high concn. is obtd. in a short time.

78. 发明专利

JPH02247393A ELECTROLYTIC ELECTRODE WITH DURABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH02247393A
公开(公告)日：1990-10-03
申请号：JP6609589
申请日：1989-03-20
申请人： PERMELEC ELECTRODE LTD
发明人： HIRAO KAZUHIRO , HAYASHI TAKANOBU
IPC分类号： C25B11/10 , C23C14/06 , C25B11/04
摘要： PURPOSE:To produce an insoluble electrolytic electrode remarkably improved in durability by forming an amorphous layer free from grain boundaries on the surface of a metallic base material and further coating the above with an electrode-activating material. CONSTITUTION:An amorphous layer of about 0.1-10mu thickness free from grain boundaries is formed on the surface of a metallic base material (Ti, Ta, etc., having electric conductivity and moderate rigidity) by means of vacuum sputtering. Further, as the above amorphous layer, Ti, Ta, Nb, Zr, Hf, or alloys thereof excellent in corrosion resistance are used. Subsequently, a solvent solution of the oxide of platinum metal (oxides of Ir, Ru, etc.) containing metal oxide, such as TiO2 and Ta2O5, is applied to the above amorphous layer, dried, and heated in an oxidizing atmosphere to undergo burning to coat the above amorphous layer with an electrode-activating material. By this method, the insoluble electrolytic electrode having superior durability for use in oxygen generation can be obtained.

79. 发明专利

JPH0273689A COPPER PLATING METHOD FOR PRINTED BOARD 失效
公开(公告)号：JPH0273689A
公开(公告)日：1990-03-13
申请号：JP22454988
申请日：1988-09-09
申请人： PERMELEC ELECTRODE LTD
发明人： HIRAO KAZUHIRO , UENO KENICHI
IPC分类号： C25D17/10 , C25D7/00 , C25D17/12 , H05K3/18 , H05K3/24 , H05K3/42
摘要： PURPOSE:To prevent the exhaustion of the additive of electrolyte simply and steadily by forming a necessary covering layer at the surface of an insoluble anode which is used at copper plating. CONSTITUTION:When electrolyzing electrolyte which contains copper ions and additives using an insoluble anode so as to do copper plating to a printed board being a cathode, an electrochemically inert film such as fluoroion exchanging resin, TiO2, Ta2O5, ZrO2, SnO2, WO2, HfO2, these compound oxide, or the like is overlaid on the surface of the insoluble anode. And the consumption of the additive of electrolyte can be prevented simply and steadily without using a partition film to isolate the anode and the cathode, and the printed board can be plated with copper inclusive of a through hole.

80. 发明专利

JPS63277799A METHOD FOR ELECTROLYTICALLY TREATING METAL 失效
公开(公告)号：JPS63277799A
公开(公告)日：1988-11-15
申请号：JP11045587
申请日：1987-05-08
申请人： PERMELEC ELECTRODE LTD
发明人： MATSUMOTO YUKIE , NISHIKI YOSHINORI , HIRAO KAZUHIRO , SHIMAMUNE TAKAYUKI
IPC分类号： C25F3/02 , C25F3/04 , C25F7/00
摘要： PURPOSE:To stably carry out uniform electrolytic treatment for a long period without generating gas by supplying AC or pulsating AC between a metal and a counter electrode obtd. by forming a coat contg. Ru, Ir or Rh oxide on a metal substrate. CONSTITUTION:A metal is electrolytically treated with AC or pulsating AC to carry out treatment such as etching. At this time, an electrode obtd. by forming a coat contg. Ru, Ir or Rh oxide on a metal substrate is used as a counter electrode. The frequency of the AC or pulsating AC is regulated to >=20Hz, desirably >=about 30Hz. The proper current density is 10-200A/dm . Ti, W or an alloy thereof is suitable for use as the metal of the metal substrate from the viewpoint of corrosion resistance and economical efficiency. A conventional electrolytic soln. is used and conventional conditions during electrolysis are adopted. Thus, electrolytic treatment can be effectively and stably carried out.

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