Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2010-02-03
2011-11-22
Friedhofer, Michael (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S310000
Reexamination Certificate
active
08063326
ABSTRACT:
An illuminating structure of a key operating unit for operating a key switch includes a housing unit to have a window portion formed correspondingly to the key switch, a circuit substrate to be provided inside the housing unit, to be disposed with the key switch, and to be provided with a light-guiding window portion, a keypad unit to include a key top portion inserted in the window portion of the housing unit, the keypad unit including a light-guiding portion at least in the key top portion, a light-emitting element to be arranged on a back surface side of the circuit substrate, and an illuminating plate to have a reflecting portion reflecting outgoing light of the light-emitting element to apply the reflected light from the reflecting portion to the keypad unit through the light-guiding window portion of the circuit substrate.
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English Translation of the International Preliminary Report on Patentability mailed on Mar. 18, 2010 issued in corresponding International Patent Application PCT/JP2007/066934.
International Search Report for PCT/JP2007/066934, mailed Nov. 27, 2007.
Igarashi Keisuke
Itou Toshiyuki
Katou Kazunori
Uchida Hiroyuki
Yamashita Naoto
Friedhofer Michael
Fujitsu Limited
Staas & Halsey , LLP
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