Inventor · disambiguated record
Tohru Nagai
Also filed as: NAGAI TOHRU
4 granted patents·178 citations·filing 1992–2008
75Inventor score
Top patents by PatentIndex Score
4 records- 0193US5646853ATraffic control systemHITACHI LTD·Filed 1992·Granted Jul 8, 1997·161 cites·40 claims
- 0246US8027090B2Optical element, replica substrate configured to form optical elementSONY CORP·Filed 2008·Granted Sep 27, 2011·0 cites·4 claims
- 0333US5993971AOptical information record mediumSONY CORP·Filed 1993·Granted Nov 30, 1999·2 cites·6 claims
- 0433US5703778ATraffic control method for relieving vehicle congestion on parallel roadsHITACHI LTD·Filed 1995·Granted Dec 30, 1997·15 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →