Assignee
YASUI TOSHIFUMI
JP·7 granted patents·11 citations·filing 2009–2012
Top patents by PatentIndex Score
7 records- 0178US8064315B2Condensing optical device, optical pickup, and optical disc apparatusYASUI TOSHIFUMI·Filed 2009·Granted Nov 22, 2011·4 cites·14 claims
- 0274US8116188B2Objective lens, optical pickup and optical disk apparatusYASUI TOSHIFUMI·Filed 2010·Granted Feb 14, 2012·4 cites·8 claims
- 0371US9335558B2Illumination device and display deviceYASUI TOSHIFUMI·Filed 2012·Granted May 10, 2016·2 cites·20 claims
- 0458US8233370B2Objective lens, optical pickup and optical disc apparatusYASUI TOSHIFUMI·Filed 2010·Granted Jul 31, 2012·1 cites·11 claims
- 0546US8864317B2Projection displayYASUI TOSHIFUMI·Filed 2012·Granted Oct 21, 2014·0 cites·14 claims
- 0643US9239463B2Illumination device and display unit for suppressing luminance unevenness and interference patternYASUI TOSHIFUMI·Filed 2012·Granted Jan 19, 2016·0 cites·18 claims
- 0736US8139463B2Objective lens, optical pickup, and optical disc apparatusYASUI TOSHIFUMI·Filed 2010·Granted Mar 20, 2012·0 cites·12 claims
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