Inventor · disambiguated record
Koichi Ohya
Also filed as: OHYA KOICHI
7 granted patents·87 citations·filing 1985–2001
85Inventor score
Files withSONY CORP7
Top patents by PatentIndex Score
7 records- 0162US4691378ATuner for television receiverSONY CORP·Filed 1985·Granted Sep 1, 1987·20 cites·4 claims
- 0258US4812773AFilter adjustment apparatus and methodSONY CORP·Filed 1987·Granted Mar 14, 1989·13 cites·7 claims
- 0357US4841461AFilter adjustment apparatus and methodSONY CORP·Filed 1987·Granted Jun 20, 1989·12 cites·17 claims
- 0455US6628343B1Television signal reception circuit, automatic phase shift control circuit and equal amplitude addition circuitSONY CORP·Filed 1998·Granted Sep 30, 2003·22 cites·12 claims
- 0553US7249368B2Tuner apparatusSONY CORP·Filed 2001·Granted Jul 24, 2007·2 cites·8 claims
- 0649US4859881AFilter circuitSONY CORP·Filed 1987·Granted Aug 22, 1989·9 cites·19 claims
- 0742US4731592AVoltage controllable oscillatorSONY CORP·Filed 1986·Granted Mar 15, 1988·9 cites·7 claims
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