Inventor · disambiguated record
Katsuya Sonoyama
Also filed as: SONOYAMA KATSUYA
4 granted patents·54 citations·filing 1998–2011
77Inventor score
Top patents by PatentIndex Score
4 records- 0190US6218903B1Signal amplifier and magnetic disk storage apparatus using the sameHITACHI LTD·Filed 2000·Granted Apr 17, 2001·27 cites·7 claims
- 0264US6114905ASignal amplifier apparatus and magnetic disk storage apparatus using the sameHITACHI LTD·Filed 1998·Granted Sep 5, 2000·14 cites·33 claims
- 0354US6163218ASignal amplifier apparatus and magnetic disk storage apparatus using the sameHITACHI LTD·Filed 1999·Granted Dec 19, 2000·12 cites·17 claims
- 0451US8299822B2Driver and output buffer circuitSHIMA YASUO·Filed 2011·Granted Oct 30, 2012·1 cites·8 claims
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