Assignee
PULSTEC IND CO LTD
JP·3 granted patents·19 citations·filing 1995–2007
Top patents by PatentIndex Score
3 records- 0167US7095510B2Point diffraction interferometer with enhanced contrastPULSTEC IND CO LTD·Filed 2003·Granted Aug 22, 2006·13 cites·22 claims
- 0245US7619958B2Pickup apparatus for multi-layer optical discPULSTEC IND CO LTD·Filed 2007·Granted Nov 17, 2009·0 cites·15 claims
- 0340US5909423APhoto-detection device used in an optical pickup head for detecting focusing error signalPULSTEC IND CO LTD·Filed 1995·Granted Jun 1, 1999·6 cites·3 claims
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