Inventor · disambiguated record
Seiji Ijuin
Also filed as: IJUIN SEIJI
4 granted patents·97 citations·filing 1994–2000
79Inventor score
Top patents by PatentIndex Score
4 records- 0193US6530693B1Cylindrical roller bearingNSK LTD·Filed 2000·Granted Mar 11, 2003·44 cites·1 claims
- 0270US5890815ARoller bearingNSK LTD·Filed 1997·Granted Apr 6, 1999·27 cites·1 claims
- 0356US5399027ARolling bearing for a high speed rotationNSK LTD·Filed 1994·Granted Mar 21, 1995·17 cites·14 claims
- 0439US6185239B1Semiconductor laser deviceSONY CORP·Filed 1998·Granted Feb 6, 2001·9 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →