Inventor · disambiguated record
Hiizu Okubo
Also filed as: OKUBO HIIZU
8 granted patents·266 citations·filing 1988–1997
89Inventor score
Files withRICOH KK8
Top patents by PatentIndex Score
8 records- 0191US5012448ASense amplifier for a ROM having a multilevel memory cellRICOH KK·Filed 1988·Granted Apr 30, 1991·77 cites·7 claims
- 0286US5029135ASemiconductor memory apparatus with internal synchronizationRICOH KK·Filed 1990·Granted Jul 2, 1991·67 cites·5 claims
- 0369US5285069AArray of field effect transistors of different threshold voltages in same semiconductor integrated circuitRICOH KK·Filed 1991·Granted Feb 8, 1994·37 cites·16 claims
- 0463US5291453ASerial memory apparatus having units for presetting reading bit lines to a given voltageRICOH KK·Filed 1993·Granted Mar 1, 1994·24 cites·10 claims
- 0554US5495444ASemiconductor memory device used as a digital buffer and reading and writing method thereofRICOH KK·Filed 1994·Granted Feb 27, 1996·28 cites·22 claims
- 0649US5740108ASeries-structured read-only memory having word lines arranged independently for each row of a memory cell arrayRICOH KK·Filed 1996·Granted Apr 14, 1998·13 cites·15 claims
- 0749US5737273ASense amplifier and reading circuit with sense amplifierRICOH KK·Filed 1996·Granted Apr 7, 1998·11 cites·9 claims
- 0845US5729499ASense amplifier and reading circuit with sense amplifierRICOH KK·Filed 1997·Granted Mar 17, 1998·9 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →