Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2007-08-14
2007-08-14
King, Roy (Department: 1742)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S212000, C205S652000, C205S654000, C205S668000, C205S672000
Reexamination Certificate
active
10828346
ABSTRACT:
An electrochemical machining apparatus comprises a machining chamber for holding ultrapure water, a cathode/anode immersed in the ultrapure water held in the machining chamber, and a workpiece holding portion for holding a workpiece at a predetermined distance from the cathode/anode so that a surface, to be machined, of the workpiece is brought into contact with the ultrapure water. The electrochemical machining apparatus further comprises an anode/cathode contact brought into contact with the workpiece held by the workpiece holding portion so that the workpiece serves as an anode/cathode, a catalyst having a strongly basic anion exchange function or a strongly acidic cation exchange function, a power source for applying a voltage between the cathode/anode and the workpiece, and a moving mechanism for relatively moving the workpiece and the catalyst. The catalyst is disposed between the cathode/anode and the workpiece held by the workpiece holding portion.
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Kobata Itsuki
Mori Yuzo
Saito Takayuki
Shirakashi Mitsuhiko
Toma Yasushi
Ebara Corporation
King Roy
Mori Yuzo
Smith Nicholas A.
Wenderoth , Lind & Ponack, L.L.P.
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