Assignee
NIDEC NISSIN CORP
JP·3 granted patents·2 citations·filing 2004–2005
Top patents by PatentIndex Score
3 records- 0166US7471611B2Zone phase correcting lens and optical head deviceNIDEC NISSIN CORP·Filed 2005·Granted Dec 30, 2008·2 cites·5 claims
- 0237US7139126B2Optical element, lens and optical head deviceNIDEC NISSIN CORP·Filed 2004·Granted Nov 21, 2006·0 cites·10 claims
- 0327US7236313B2Ring zonal phase correction lens and optical system and optical head deviceNIDEC NISSIN CORP·Filed 2005·Granted Jun 26, 2007·0 cites·9 claims
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