Inventor · disambiguated record
Yataro Nagai
Also filed as: NAGAI YATARO
8 granted patents·174 citations·filing 1981–1993
89Inventor score
Top patents by PatentIndex Score
8 records- 0177US4545588AMechanical face seal for sealing slurry liquidTANKEN SEIKO CORP·Filed 1984·Granted Oct 8, 1985·32 cites·21 claims
- 0276US5067733AMechanical seal including a split seal ringTANKEN SEIKO KK·Filed 1990·Granted Nov 26, 1991·38 cites·6 claims
- 0375US5448924ASystem for monitoring behavior of rotary bodyTANKEN SEIKO KK·Filed 1993·Granted Sep 12, 1995·34 cites·29 claims
- 0469US4997192AMechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing sameTANKEN SEIKO KK·Filed 1990·Granted Mar 5, 1991·27 cites·2 claims
- 0568US4925490AMechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing sameTANKEN SEIKO KK·Filed 1988·Granted May 15, 1990·18 cites·4 claims
- 0658US4463957ASealing device for rotary shaft and string-like member for defining spiral thereforTANKEN SEIKO CORP·Filed 1981·Granted Aug 7, 1984·17 cites·26 claims
- 0734US4982373AFluid agitatorTANKEN SEIKO KK·Filed 1989·Granted Jan 1, 1991·6 cites·4 claims
- 0826US5066134AFluid agitatorTANKEN SEIKO KK·Filed 1990·Granted Nov 19, 1991·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →