Inventor · disambiguated record
Keizo Aoyama
Also filed as: AOYAMA KEIZO
29 granted patents·1 pending application·494 citations·filing 1980–2011
97Inventor score
Top patents by PatentIndex Score
30 records- 0187US4573147ASemiconductor memory deviceFUJITSU LTD·Filed 1983·Granted Feb 25, 1986·43 cites·12 claims
- 0285US4716307ARegulated power supply for semiconductor chips with compensation for changes in electrical characteristics or chips and in external power supplyFUJITSU LTD·Filed 1986·Granted Dec 29, 1987·38 cites·14 claims
- 0382US4603404ASemiconductor memory device with redundant cellsFUJITSU LTD·Filed 1982·Granted Jul 29, 1986·34 cites·5 claims
- 0481US4660179ASemiconductor memory device with switching for redundant cellsFUJITSU LTD·Filed 1984·Granted Apr 21, 1987·30 cites·4 claims
- 0578US4449066ABuffer circuit for generating output signals having short recovery timeFUJITSU LTD·Filed 1981·Granted May 15, 1984·22 cites·12 claims
- 0677US4507574AConstant operation speed logic circuitFUJITSU LTD·Filed 1982·Granted Mar 26, 1985·21 cites·11 claims
- 0775US4823321ADual port type semiconductor memory device realizing a high speed read operationFUJITSU LTD·Filed 1987·Granted Apr 18, 1989·30 cites·5 claims
- 0874US4563754AStatic-type random-access memory deviceFUJITSU LTD·Filed 1983·Granted Jan 7, 1986·22 cites·15 claims
- 0971US5335199AMultiport memoryFUJITSU LTD·Filed 1992·Granted Aug 2, 1994·30 cites·33 claims
- 1069US4616344AStatic memory circuitFUJITSU LTD·Filed 1983·Granted Oct 7, 1986·19 cites·15 claims
- 1167US4393472ASemiconductor memory circuitFUJITSU LTD·Filed 1980·Granted Jul 12, 1983·17 cites·6 claims
- 1265US4730280ASemiconductor memory device having sense amplifiers with different driving abilitiesFUJITSU LTD·Filed 1985·Granted Mar 8, 1988·22 cites·2 claims
- 1365US4656608ASemiconductor memory deviceFUJITSU LTD·Filed 1985·Granted Apr 7, 1987·21 cites·9 claims
- 1464US4587639AStatic semiconductor memory device incorporating redundancy memory cellsFUJITSU LTD·Filed 1984·Granted May 6, 1986·15 cites·13 claims
- 1562US4571510ADecoder circuitFUJITSU LTD·Filed 1983·Granted Feb 18, 1986·14 cites·8 claims
- 1662US4516224ASemiconductor memoryFUJITSU LTD·Filed 1982·Granted May 7, 1985·13 cites·13 claims
- 1757US4512012ATime-switch circuitNIPPON TELEGRAPH & TELEPHONE·Filed 1983·Granted Apr 16, 1985·11 cites·9 claims
- 1856US4578778ASemiconductor memory with load controlling feedback means to reduce power consumptionFUJITSU LTD·Filed 1982·Granted Mar 25, 1986·10 cites·16 claims
- 1954US4596936ACircuit for shaping digital signals in an integrated circuitFUJITSU LTD·Filed 1983·Granted Jun 24, 1986·9 cites·15 claims
- 2052US4480321ASemiconductor memory deviceFUJITSU LTD·Filed 1982·Granted Oct 30, 1984·8 cites·16 claims
- 2147US4504743ASemiconductor resistor elementFUJITSU LTD·Filed 1981·Granted Mar 12, 1985·9 cites·1 claims
- 2246US6477072B2Layout design method on semiconductor chip for avoiding detour wiringFUJITSU LTD·Filed 1999·Granted Nov 5, 2002·9 cites·19 claims
- 2345US4581549ACMIS chip-select circuitFUJITSU LTD·Filed 1983·Granted Apr 8, 1986·6 cites·13 claims
- 2443US4825098ABidirectional semiconductor device having only one one-directional deviceFUJITSU LTD·Filed 1987·Granted Apr 25, 1989·11 cites·8 claims
- 2541US4733377AAsynchronous semiconductor memory deviceFUJITSU LTD·Filed 1983·Granted Mar 22, 1988·5 cites·4 claims
- 2640US4779227ASemiconductor memory deviceFUJITSU LTD·Filed 1986·Granted Oct 18, 1988·7 cites·5 claims
- 2738US5317536ADual-port type semiconductor integrated memory circuitFUJITSU LTD·Filed 1992·Granted May 31, 1994·6 cites·19 claims
- 2836US2011295761A1Business form management system, method and programSUDO AKIYOSHI·Filed 2011·Application pending·0 cites
- 2935US4549199ASemiconductor device providing a contact structure which can be miniaturizedFUJITSU LTD·Filed 1983·Granted Oct 22, 1985·6 cites·12 claims
- 3034US4809046ASemiconductor memory deviceFUJITSU LTD·Filed 1986·Granted Feb 28, 1989·6 cites·13 claims
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