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Daejeon, KR
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last 30 patents
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Patent Grant
Solid-state imaging device into which optical low pass filter is in...
Patent number
6,819,361
Issue date
Nov 16, 2004
Havit Co., Ltd.
Jae Chul Lee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Optical phase grating low pass filter
Patent number
6,404,554
Issue date
Jun 11, 2002
Havit Co., Ltd.
Jae Chul Lee
G02 - OPTICS