Assignee
YAMADA KEIKO
JP·4 granted patents·1 pending application·33 citations·filing 2008–2012
Top patents by PatentIndex Score
5 records- 0188US8425044B2Projection optical systemYAMADA KEIKO·Filed 2008·Granted Apr 23, 2013·12 cites·28 claims
- 0288US8113667B2Projection optical systemYAMADA KEIKO·Filed 2008·Granted Feb 14, 2012·13 cites·26 claims
- 0376US8427761B2Image pickup optical system, image pickup optical device, and digital equipmentYAMADA KEIKO·Filed 2010·Granted Apr 23, 2013·4 cites·15 claims
- 0466US8638483B2Image display device and head-mounted displayYAMADA KEIKO·Filed 2009·Granted Jan 28, 2014·4 cites·11 claims
- 0538US2014015991A1Imaging optical system, imaging device, and digital apparatusYAMADA KEIKO·Filed 2012·Application pending·0 cites
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →