Inventor · disambiguated record
Nagamasa Yamada
Also filed as: YAMADA NAGAMASA
2 granted patents·27 citations·filing 1995–2001
59Inventor score
Top patents by PatentIndex Score
2 records- 0152US5793017AApparatus for automatically welding tubular components of fusible resin and pipe clamping apparatus and heating apparatus used for the sameN G N CO LTD·Filed 1995·Granted Aug 11, 1998·23 cites·7 claims
- 0235US6619324B2Non-return bias valve mechanism for a fluid pumping assemblyNGN CO LTD·Filed 2001·Granted Sep 16, 2003·4 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →