Assignee
SYSTEM SEIKO CO LTD
JP·10 granted patents·284 citations·filing 1991–1999
Top patents by PatentIndex Score
10 records- 0190US6033522ASurface treatment method and apparatus for rotatable discSYSTEM SEIKO CO LTD·Filed 1998·Granted Mar 7, 2000·60 cites·10 claims
- 0287US5357645AApparatus for cleaning and drying hard disk substratesSYSTEM SEIKO CO LTD·Filed 1993·Granted Oct 25, 1994·65 cites·10 claims
- 0379US5140774AApparatus for polishing hard disk substratesSYSTEM SEIKO CO LTD·Filed 1991·Granted Aug 25, 1992·42 cites·6 claims
- 0473US5538460AApparatus for grinding hard disk substratesSYSTEM SEIKO CO LTD·Filed 1994·Granted Jul 23, 1996·32 cites·6 claims
- 0572US6089959APolishing method and polishing apparatusSYSTEM SEIKO CO LTD·Filed 1999·Granted Jul 18, 2000·34 cites·18 claims
- 0667US6275032B1Surface flatness measuring apparatusSYSTEM SEIKO CO LTD·Filed 1998·Granted Aug 14, 2001·25 cites·4 claims
- 0753US6152804AGrinding method and grinding apparatusSYSTEM SEIKO CO LTD·Filed 1999·Granted Nov 28, 2000·16 cites·3 claims
- 0842US6011618AMethod and apparatus of surface inspection of a diskSYSTEM SEIKO CO LTD·Filed 1998·Granted Jan 4, 2000·9 cites·11 claims
- 0927US5875505AApparatus for cleaning and drying hard disk substratesSYSTEM SEIKO CO LTD·Filed 1997·Granted Mar 2, 1999·0 cites·2 claims
- 1027US5685040AApparatus for cleaning and drying hard disk substratesSYSTEM SEIKO CO LTD·Filed 1993·Granted Nov 11, 1997·1 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →