Assignee
KOYAMA TAKEHIRO
JP·4 granted patents·2 citations·filing 2008–2012
Top patents by PatentIndex Score
4 records- 0170US9091910B2Image projectorKOYAMA TAKEHIRO·Filed 2011·Granted Jul 28, 2015·2 cites·6 claims
- 0250US8724241B2Prism unit and a projection image display apparatusKOYAMA TAKEHIRO·Filed 2012·Granted May 13, 2014·0 cites·12 claims
- 0348US8233227B2Prism unit and a projection image display apparatusKOYAMA TAKEHIRO·Filed 2008·Granted Jul 31, 2012·0 cites·8 claims
- 0443US8888293B2Image projection apparatus having an insertable and extractable optical elementKOYAMA TAKEHIRO·Filed 2012·Granted Nov 18, 2014·0 cites·4 claims
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