Inventor · disambiguated record
Isao Nagahashi
Also filed as: NAGAHASHI ISAO
10 granted patents·792 citations·filing 1986–1999
93Inventor score
Files withSPEEDFAM CORP4SPEEDFAM CO LTD2SPEEDFAM COMPANY LIMITED1SPEEDFAM COMPANY LTD1SPEEDFAM IPEC CORP1
Top patents by PatentIndex Score
10 records- 0195US5329732AWafer polishing method and apparatusSPEEDFAM CORP·Filed 1992·Granted Jul 19, 1994·262 cites·14 claims
- 0292US5498199AWafer polishing method and apparatusSPEEDFAM CORP·Filed 1994·Granted Mar 12, 1996·198 cites·5 claims
- 0391US5097630ASpecular machining apparatus for peripheral edge portion of waferSPEEDFAM CO LTD·Filed 1988·Granted Mar 24, 1992·55 cites·14 claims
- 0487US5094037AEdge polisherSPEEDFAM COMPANY LTD·Filed 1990·Granted Mar 10, 1992·62 cites·14 claims
- 0587US4805348AFlat lapping machineSPEEDFAM CO LTD·Filed 1986·Granted Feb 21, 1989·50 cites·16 claims
- 0683US5498196AWafer polishing method and apparatusSPEEDFAM CORP·Filed 1994·Granted Mar 12, 1996·72 cites·3 claims
- 0772US6089959APolishing method and polishing apparatusSYSTEM SEIKO CO LTD·Filed 1999·Granted Jul 18, 2000·34 cites·18 claims
- 0863US5645472APolishing deviceSPEEDFAM COMPANY LIMITED·Filed 1996·Granted Jul 8, 1997·28 cites·4 claims
- 0954US5762543APolishing apparatus with improved product unloadingSPEEDFAM CORP·Filed 1995·Granted Jun 9, 1998·19 cites·34 claims
- 1049USRE37622EWafer polishing method and apparatusSPEEDFAM IPEC CORP·Filed 1997·Granted Apr 2, 2002·12 cites·62 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →