Inventor · disambiguated record
Sumio Nakahashi
Also filed as: NAKAHASHI SUMIO
4 granted patents·109 citations·filing 1987–2002
79Inventor score
Files withNISSAN CHEMICAL INDUSTRY CO LT1NISSEN KAGAKU KK1NISSEN KAGAKU KOGYO KK1NISSEN KAGAKUKOGYO K K1
Top patents by PatentIndex Score
4 records- 0174US5269977AMethod of manufacturing a foam transparent organic glass plateNISSEN KAGAKUKOGYO K K·Filed 1991·Granted Dec 14, 1993·57 cites·13 claims
- 0273US4830899ALight reflection material, its manufacture and applicationNISSEN KAGAKU KOGYO KK·Filed 1987·Granted May 16, 1989·31 cites·16 claims
- 0367US6767105B2Planar lighting deviceNISSEN KAGAKU KK·Filed 2002·Granted Jul 27, 2004·16 cites·9 claims
- 0424US4931227AMolding of light reflectorNISSAN CHEMICAL INDUSTRY CO LT·Filed 1988·Granted Jun 5, 1990·5 cites·4 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →