Inventor · disambiguated record
Nobuhito Hirakawa
Also filed as: HIRAKAWA NOBUHITO
4 granted patents·102 citations·filing 1994–2001
79Inventor score
Files withNIPPON PILLAR PACKING4
Top patents by PatentIndex Score
4 records- 0179US6485062B2Multi-channel rotary jointNIPPON PILLAR PACKING·Filed 2001·Granted Nov 26, 2002·33 cites·4 claims
- 0273US6550119B2Inner ring press-insertion jig for a pipe member made of resinNIPPON PILLAR PACKING·Filed 2001·Granted Apr 22, 2003·20 cites·7 claims
- 0365US5516159AQuartz pipe jointNIPPON PILLAR PACKING·Filed 1994·Granted May 14, 1996·32 cites·7 claims
- 0442US6079581AFuel feed port sealing apparatusNIPPON PILLAR PACKING·Filed 1998·Granted Jun 27, 2000·17 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →