Assignee
NAGATOSHI YUKIKO
JP·4 granted patents·28 citations·filing 2009–2011
Top patents by PatentIndex Score
4 records- 0191US8482851B2Projection optical system and projection display device using the sameNAGATOSHI YUKIKO·Filed 2010·Granted Jul 9, 2013·11 cites·9 claims
- 0278US8072690B2Projection zoom lens system and projection type display apparatusNAGATOSHI YUKIKO·Filed 2009·Granted Dec 6, 2011·9 cites·7 claims
- 0377US8693105B2Variable magnification optical system for projection and projection-type display apparatusNAGATOSHI YUKIKO·Filed 2011·Granted Apr 8, 2014·4 cites·37 claims
- 0477US8270092B2Zoom lens for projection and projection-type display apparatusNAGATOSHI YUKIKO·Filed 2010·Granted Sep 18, 2012·4 cites·18 claims
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