Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Reexamination Certificate
2006-11-14
2006-11-14
Dye, Rena (Department: 1774)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
C428S195100, C428S204000, C428S192000, C430S131000, C430S064000, C430S126200
Reexamination Certificate
active
07135218
ABSTRACT:
A film is made of an insulating matrix resin and an electroconductive material, in which the electroconductive material is dispersed in the insulating matrix resin in such a manner that a surface resistivity of A [Ω] of the film and a volume resistivity of B [Ω·cm] of the film in the direction of a thickness thereof normal to the surface of the film satisfy a relationship of: A>B, and when the film has a thickness of T [cm], the electroconductive material is dispersed in the insulating matrix resin in such a manner that the surface resistivity of A [Ω] of the film and the volume resistivity of B [Ω·cm] of the film satisfy a relationship of: A[Ω]×T[cm]>B[Ω·cm]. This film can be prepared by a centrifugal molding method.
REFERENCES:
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patent: 5139906 (1992-08-01), Doi et al.
patent: 5182159 (1993-01-01), Yamauchi et al.
patent: 5558979 (1996-09-01), Ishigaki et al.
patent: 5906882 (1999-05-01), Valente et al.
patent: 6139784 (2000-10-01), Oshima et al.
U.S. Appl. No. 10/293,311, filed Nov. 14, 2002, Matsuo et al.
U.S. Appl. No. 10/931,116, filed Sep. 1, 2004, Narita et al.
JIS K6911 5.13.1 pp. 219-220.
Jibiki Yuichi
Komatsu Hideki
Matsuo Minoru
Tanaka Akiko
Dye Rena
Ferguson Lawrence D.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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