Inventor · disambiguated record
Eiji Okumachi
Also filed as: OKUMACHI EIJI
7 granted patents·2 pending applications·261 citations·filing 1992–2012
88Inventor score
Top patents by PatentIndex Score
9 records- 0192US5664787ANon-contacting shaft sealing deviceNIPPON PILLAR PACKING·Filed 1996·Granted Sep 9, 1997·72 cites·4 claims
- 0291US5501470ANon-contacting shaft sealing device with grooved face patternNIPPON PILLAR PACKING·Filed 1993·Granted Mar 26, 1996·64 cites·17 claims
- 0386US6431551B1Non-contact type mechanical sealNIPPON PILLAR PACKING·Filed 2000·Granted Aug 13, 2002·32 cites·11 claims
- 0483US5529318ANon-contacting shaft sealing deviceNIPPON PILLAR PACKING·Filed 1995·Granted Jun 25, 1996·44 cites·9 claims
- 0577US8770589B2Shaft-seal device for high-temperature fluidHASHIMOTO TAIJI·Filed 2012·Granted Jul 8, 2014·5 cites·10 claims
- 0661US6325378B1Shaft seal apparatusNIPPON PILLAR PACKING·Filed 1999·Granted Dec 4, 2001·25 cites·4 claims
- 0753US5398943ASeal device of the non-contact typeNIPPON PILLAR PACKING·Filed 1992·Granted Mar 21, 1995·19 cites·3 claims
- 0848US2013209777A1Ceramics sliding member for use in pure waterNAGASAKA HIROSHI·Filed 2012·Application pending·0 cites
- 0947US2010130343A1Ceramics sliding member for use in pure waterEBARA CORP·Filed 2008·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Eiji Okumachi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →