Inventor · disambiguated record
Ryoji Hamaguchi
Also filed as: HAMAGUCHI RYOJI
4 granted patents·8 citations·filing 2015–2019
64Inventor score
Files withNIPPON PILLAR PACKING4
Top patents by PatentIndex Score
4 records- 0184US10100444B2Yarn and gland packingNIPPON PILLAR PACKING·Filed 2015·Granted Oct 16, 2018·5 cites·8 claims
- 0277US10316442B2Method for producing yarnNIPPON PILLAR PACKING·Filed 2015·Granted Jun 11, 2019·3 cites·2 claims
- 0357US10533268B2Sealing material composition and gland packing containing the sealing material compositionNIPPON PILLAR PACKING·Filed 2017·Granted Jan 14, 2020·0 cites·15 claims
- 0452US11982355B2Yarn and gland packingNIPPON PILLAR PACKING·Filed 2019·Granted May 14, 2024·0 cites·6 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →