Inventor · disambiguated record
Hideaki Koyanagi
Also filed as: KOYANAGI HIDEAKI
4 granted patents·151 citations·filing 1990–2007
80Inventor score
Top patents by PatentIndex Score
4 records- 0192US5889748AObject lens and optical head for reproducing data from optical disks in different thickness of substrateHITACHI LTD·Filed 1996·Granted Mar 30, 1999·81 cites·19 claims
- 0289US7345829B2Objective lensHOYA CORP·Filed 2007·Granted Mar 18, 2008·14 cites·7 claims
- 0370US5166830AAspherical lens system for a bar code sensorHOYA CORP·Filed 1990·Granted Nov 24, 1992·52 cites·5 claims
- 0461US7212485B2Objective lens and method for manufacture thereofHOYA CORP·Filed 2004·Granted May 1, 2007·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →