Assignee
WATANABE KOICHI
JP·4 granted patents·6 citations·filing 2009–2020
Top patents by PatentIndex Score
4 records- 0180US8279732B2Optical disc drive and optical information read methodWATANABE KOICHI·Filed 2009·Granted Oct 2, 2012·4 cites·9 claims
- 0276US11150395B2Light guide and light emitting deviceWATANABE KOICHI·Filed 2020·Granted Oct 19, 2021·1 cites·6 claims
- 0356US9437486B2Sputtering targetWATANABE KOICHI·Filed 2011·Granted Sep 6, 2016·1 cites·4 claims
- 0441US8174954B2Optical information recording and reproducing method and optical information recording and reproducing apparatusWATANABE KOICHI·Filed 2010·Granted May 8, 2012·0 cites·17 claims
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