Inventor · disambiguated record
Masazumi Hirai
Also filed as: HIRAI MASAZUMI
5 granted patents·85 citations·filing 1980–1991
81Inventor score
Top patents by PatentIndex Score
5 records- 0186US5144998AProcess for the production of semi-solidified metal compositionRHEO TECHNOLOGY LTD·Filed 1991·Granted Sep 8, 1992·40 cites·5 claims
- 0282US4334921AConverter steelmaking processNIPPON STEEL CORP·Filed 1980·Granted Jun 15, 1982·15 cites·13 claims
- 0366US4687047AContinuous casting methodNIPPON STEEL CORP·Filed 1986·Granted Aug 18, 1987·12 cites·6 claims
- 0459US5110547AProcess and apparatus for the production of semi-solidified metal compositionRHEO TECHNOLOGY LTD·Filed 1991·Granted May 5, 1992·9 cites·14 claims
- 0546US4629504ASteel materials for welded structuresNIPPON STEEL CORP·Filed 1985·Granted Dec 16, 1986·9 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →