Inventor · disambiguated record
Yoshitaka Umeki
Also filed as: UMEKI YOSHITAKA
7 granted patents·75 citations·filing 1985–2001
85Inventor score
Files withNEC CORP7
Top patents by PatentIndex Score
7 records- 0169US4694198ASchmitt trigger circuitNEC CORP·Filed 1986·Granted Sep 15, 1987·19 cites·6 claims
- 0266US4689497AMaster-slave type flip-flop circuitsNEC CORP·Filed 1985·Granted Aug 25, 1987·16 cites·4 claims
- 0352US6498508B2Semiconductor integrated circuit device and testing method thereforNEC CORP·Filed 2001·Granted Dec 24, 2002·5 cites·5 claims
- 0446US6249134B1Semiconductor integrated circuit device and testing method thereofNEC CORP·Filed 1998·Granted Jun 19, 2001·11 cites·7 claims
- 0546US5124581AEmitter-coupled logic output circuitNEC CORP·Filed 1991·Granted Jun 23, 1992·9 cites·6 claims
- 0646US4883990AECL-TTL level converterNEC CORP·Filed 1988·Granted Nov 28, 1989·8 cites·6 claims
- 0744US4771190AEmitter coupled logic circuit provided with pull-down resistors at respective bases of input transistorsNEC CORP·Filed 1986·Granted Sep 13, 1988·7 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →