Inventor · disambiguated record
Toshiaki Umeda
Also filed as: UMEDA TOSHIAKI
7 granted patents·102 citations·filing 1994–1997
86Inventor score
Technology areasG02C
Files withNIKON CORP7
Top patents by PatentIndex Score
7 records- 0163US5557348AProgressive power lensNIKON CORP·Filed 1994·Granted Sep 17, 1996·32 cites·7 claims
- 0251US5864380AProgressive power lensNIKON CORP·Filed 1997·Granted Jan 26, 1999·22 cites·7 claims
- 0341US5666184AProgressive power lensNIKON CORP·Filed 1994·Granted Sep 9, 1997·12 cites·13 claims
- 0441US5506630AProgressive multifocal lensNIKON CORP·Filed 1994·Granted Apr 9, 1996·12 cites·7 claims
- 0539US5805265AProgressive lensNIKON CORP·Filed 1996·Granted Sep 8, 1998·12 cites·5 claims
- 0639US5510860AProgressive multifocal lensNIKON CORP·Filed 1994·Granted Apr 23, 1996·10 cites·2 claims
- 0730US5523807AProgressive multifocal lensNIKON CORP·Filed 1994·Granted Jun 4, 1996·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →