Inventor · disambiguated record
Ryoji Nagamine
Also filed as: NAGAMINE RYOJI
4 granted patents·86 citations·filing 1974–1987
78Inventor score
Top patents by PatentIndex Score
4 records- 0177US4348164AApparatus for continuous production of a slab of polyurethane foamTOYO RUBBER CHEMICAL IND CO·Filed 1980·Granted Sep 7, 1982·41 cites·5 claims
- 0268US3933697AMethod for preparing a polyurethane foam comprising quaternary ammonium salt as antistatic agentTOYO RUBBER CHEMICAL IND CO·Filed 1974·Granted Jan 20, 1976·23 cites·5 claims
- 0355US4988271AApparatus for producing polyurethane foamHUMAN IND CORP·Filed 1987·Granted Jan 29, 1991·19 cites·2 claims
- 0432US4610922AAsphalt impregnated foam and method of producing the sameHUMAN IND CORP·Filed 1985·Granted Sep 9, 1986·3 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Ryoji Nagamine files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →