Inventor · disambiguated record
Keiji Fukumura
Also filed as: FUKUMURA KEIJI
9 granted patents·132 citations·filing 1984–2011
89Inventor score
Files withRICOH KK3CREATIVE INTEGRATED SYST INC2FUKUMURA KEIJI2CREATIVE INTEGRATED STSTEMS IN1SUMITOMO ELECTRIC INDUSTRIES1
Top patents by PatentIndex Score
9 records- 0194US9063558B2Current limiting circuit configured to limit output current of driver circuitFUKUMURA KEIJI·Filed 2011·Granted Jun 23, 2015·35 cites·3 claims
- 0280US8415811B2Semiconductor package and electronic component packageFUKUMURA KEIJI·Filed 2011·Granted Apr 9, 2013·7 cites·7 claims
- 0377US4574950AWafer boxSUMITOMO ELECTRIC INDUSTRIES·Filed 1984·Granted Mar 11, 1986·45 cites·7 claims
- 0453US5608687AOutput driver control for ROM and RAM devicesCREATIVE INTEGRATED SYST INC·Filed 1995·Granted Mar 4, 1997·12 cites·13 claims
- 0544US5870346AVLSI memory circuitCREATIVE INTEGRATED STSTEMS IN·Filed 1997·Granted Feb 9, 1999·9 cites·15 claims
- 0644US5487038AMethod for read cycle interrupts in a dynamic read-only memoryCREATIVE INTEGRATED SYST INC·Filed 1994·Granted Jan 23, 1996·8 cites·6 claims
- 0740US4774692ASense circuit of a semiconductor memory deviceRICOH KK·Filed 1987·Granted Sep 27, 1988·7 cites·8 claims
- 0838US4990999ASemiconductor memory device using high-density and high-speed MOS elementsRICOH KK·Filed 1989·Granted Feb 5, 1991·8 cites·7 claims
- 0929US5953262AOutput circuit of a semiconductor memory device for providing an intermediate potential to an output terminalRICOH KK·Filed 1998·Granted Sep 14, 1999·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →