Coater of electric insulating sheet and method for producing...

Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized

Reexamination Certificate

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Details

C427S420000, C118S638000, C118S407000, C118S419000

Reexamination Certificate

active

07927668

ABSTRACT:
A coater for coating an electric insulating sheet with coating liquid while sustaining an identical charging polarity of the insulating sheet and the coating liquid in a process for coating one surface of a traveling electric insulating sheet with coating liquid, and a method for producing a coated electric insulating sheet. In order to sustain an identical charging polarity of the insulating sheet and the coating liquid, the coater comprises any one or both of a sheet charger for imparting electrostatic charges to one surface of the electric insulating sheet and a coating liquid charger for imparting electrostatic charges to the coating liquid.

REFERENCES:
patent: 4513683 (1985-04-01), Kisler
patent: 2003/0059548 (2003-03-01), Zaretsky et al.
patent: 2005/0030694 (2005-02-01), Morioka et al.
patent: 1 503 614 (2005-02-01), None
patent: 2597237 (1997-04-01), None
patent: 09-253565 (1997-09-01), None
patent: 10-259328 (1998-09-01), None
patent: 2817056 (1998-10-01), None
patent: 10-314660 (1998-12-01), None
patent: 11-128804 (1999-06-01), None
patent: 11-156263 (1999-06-01), None
patent: 2001-277412 (2001-10-01), None
patent: 2004-039421 (2004-02-01), None
Institute of Electrostatics, “Electrostatics Handbook” (with English Partial), Nov. 25, 1998, pp. 179-180 and 319-320, Japan.
International Search Report of Application No. PCT/JP2006/307208 dated May 30, 2006.

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