Inventor · disambiguated record
Futao Yamaguchi
Also filed as: YAMAGUCHI FUTAO
4 granted patents·16 citations·filing 1989–1993
70Inventor score
Files withSONY CORP4
Top patents by PatentIndex Score
4 records- 0137US5475338AActive filter circuit of a capacity ground typeSONY CORP·Filed 1992·Granted Dec 12, 1995·7 cites·4 claims
- 0233US5124761ASemiconductor apparatusSONY CORP·Filed 1989·Granted Jun 23, 1992·5 cites·4 claims
- 0330US5206606AControl circuit for signal levelSONY CORP·Filed 1992·Granted Apr 27, 1993·3 cites·3 claims
- 0425US5313122ACapacity ground type filter circuitSONY CORP·Filed 1993·Granted May 17, 1994·1 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →