Inventor · disambiguated record
Youji Sonobe
Also filed as: SONOBE YOUJI
3 granted patents·34 citations·filing 1984–1998
70Inventor score
Top patents by PatentIndex Score
3 records- 0145US4643572ADriving circuit of a gratingANRITSU ELECTRIC CO LTD·Filed 1984·Granted Feb 17, 1987·11 cites·1 claims
- 0241US6236452B1Optical amplifier evaluation method and optical amplifier evaluation deviceANRITSU CORP·Filed 1998·Granted May 22, 2001·12 cites·40 claims
- 0341US4758086AApparatus for measuring spectral power of a light beamANRITSU CORP·Filed 1987·Granted Jul 19, 1988·11 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →