Inventor · disambiguated record
Ryohei Hazawa
Also filed as: HAZAWA RYOHEI
2 granted patents·20 citations·filing 1991–1995
60Inventor score
Technology areasB29C
Files withNIPPON STEEL CHEMICAL CO2
Top patents by PatentIndex Score
2 records- 0144US5540581AMold for injection molding a thermoplastic part free from sink marks using a void inducing memberNIPPON STEEL CHEMICAL CO·Filed 1995·Granted Jul 30, 1996·10 cites·6 claims
- 0242US5232654AInjection molding method for manufacturing a thermoplastic part free from sink marks using a void inducing memberNIPPON STEEL CHEMICAL CO·Filed 1991·Granted Aug 3, 1993·10 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →