Inventor · disambiguated record
Takashi Akioka
Also filed as: AKIOKA TAKASHI
38 granted patents·2 pending applications·840 citations·filing 1988–2010
98Inventor score
Files withHITACHI LTD29RENESAS TECH CORP4HITACHI ULSI SYS CO LTD3RENESAS ELECTRONICS CORP2HITACHI DISPLAYS LTD1
Top patents by PatentIndex Score
40 records- 0195US6963136B2Semiconductor integrated circuit deviceHITACHI ULSI SYS CO LTD·Filed 2001·Granted Nov 8, 2005·170 cites·4 claims
- 0291US5638335ASemiconductor deviceHITACHI LTD·Filed 1996·Granted Jun 10, 1997·91 cites·6 claims
- 0390US7423623B2Image display deviceHITACHI LTD·Filed 2005·Granted Sep 9, 2008·9 cites·5 claims
- 0484US7928952B2Image display deviceHITACHI DISPLAYS LTD·Filed 2008·Granted Apr 19, 2011·5 cites·3 claims
- 0584US6538933B2High speed semiconductor memory device with short word line switching timeHITACHI LTD·Filed 2002·Granted Mar 25, 2003·31 cites·26 claims
- 0683US6329973B1Image display deviceHITACHI LTD·Filed 1995·Granted Dec 11, 2001·58 cites·16 claims
- 0781US5920510ASemiconductor device capable of holding signals independent of the pulse width of an external clock and a computer system including the semiconductor deviceHITACHI LTD·Filed 1997·Granted Jul 6, 1999·47 cites·34 claims
- 0880US5563502AConstant voltage generation circuitHITACHI LTD·Filed 1993·Granted Oct 8, 1996·38 cites·18 claims
- 0977US5398318AHigh speed, low noise output buffer with non-identical pairs of output transistorsHITACHI LTD·Filed 1990·Granted Mar 14, 1995·26 cites·28 claims
- 1077US5392246ASemiconductor memory with multiple sets & redundant cellsHITACHI LTD·Filed 1994·Granted Feb 21, 1995·39 cites·31 claims
- 1177US5247198ASemiconductor integrated circuit device with multiplayered wiringHITACHI LTD·Filed 1989·Granted Sep 21, 1993·47 cites·18 claims
- 1276US5631600AReference current generating circuit for generating a constant currentHITACHI LTD·Filed 1994·Granted May 20, 1997·40 cites·4 claims
- 1372US5373469ADifferential amplifier with a latching function and a memory apparatus employing sameHITACHI LTD·Filed 1992·Granted Dec 13, 1994·25 cites·13 claims
- 1471US7547971B2Semiconductor integrated circuit deviceRENESAS TECH CORP·Filed 2005·Granted Jun 16, 2009·4 cites·12 claims
- 1569US7808107B2Semiconductor integrated circuit deviceRENESAS ELECTRONICS CORP·Filed 2009·Granted Oct 5, 2010·3 cites·28 claims
- 1666US6366507B1High speed semiconductor memory device with short word line switching timeHITACHI LTD·Filed 2000·Granted Apr 2, 2002·13 cites·14 claims
- 1765US5742551AMemory circuit improved in electrical characteristicsHITACHI LTD·Filed 1995·Granted Apr 21, 1998·20 cites·5 claims
- 1865US4948994ASemiconductor circuit for driving the base of a bipolar transistorHITACHI LTD·Filed 1988·Granted Aug 14, 1990·14 cites·22 claims
- 1964US5787043ASemiconductor memory device having a redundancy capabilityHITACHI LTD·Filed 1995·Granted Jul 28, 1998·24 cites·18 claims
- 2063US5387827ASemiconductor integrated circuit having logic gatesHITACHI LTD·Filed 1991·Granted Feb 7, 1995·13 cites·43 claims
- 2162US6625070B2Semiconductor memory deviceHITACHI LTD·Filed 2001·Granted Sep 23, 2003·9 cites·10 claims
- 2260US7254068B2Semiconductor memory deviceHITACHI ULSI SYS CO LTD·Filed 2006·Granted Aug 7, 2007·3 cites·3 claims
- 2360US5761150ASynchronous memory with pipelined write operationHITACHI LTD·Filed 1996·Granted Jun 2, 1998·19 cites·6 claims
- 2458US5680066ASignal transition detector circuitHITACHI LTD·Filed 1994·Granted Oct 21, 1997·15 cites·51 claims
- 2556US6770941B2Semiconductor device and method of manufacturing a semiconductor deviceRENESAS TECH CORP·Filed 2001·Granted Aug 3, 2004·6 cites·12 claims
- 2656US5619151ASemiconductor deviceHITACHI LTD·Filed 1995·Granted Apr 8, 1997·14 cites·37 claims
- 2751US5646897ALogic gate circuit and parallel bit test circuit for semiconductor memory devices, capable of operation at low power source levelsHITACHI LTD·Filed 1995·Granted Jul 8, 1997·13 cites·19 claims
- 2848US7982314B2Semiconductor integrated circuit deviceRENESAS ELECTRONICS CORP·Filed 2010·Granted Jul 19, 2011·0 cites·18 claims
- 2948US5523713AMultiplex circuit arrangement for use with a semiconductor integrated circuitHITACHI LTD·Filed 1995·Granted Jun 4, 1996·8 cites·24 claims
- 3044US2002024496A1Image display deviceFiled 2001·Application pending·0 cites
- 3143US5654931AHigh-speed semiconductor memory device and data processing system using the sameHITACHI LTD·Filed 1994·Granted Aug 5, 1997·9 cites·6 claims
- 3242US6856559B2Semiconductor memory deviceRENESAS TECH CORP·Filed 2003·Granted Feb 15, 2005·2 cites·6 claims
- 3340US5675548ASemiconductor integrated circuit having logi gatesHITACHI LTD·Filed 1996·Granted Oct 7, 1997·4 cites·34 claims
- 3439US7068551B2Semiconductor memory deviceHITACHI ULSI SYS CO LTD·Filed 2005·Granted Jun 27, 2006·0 cites·10 claims
- 3539US5544125ASemiconductor integrated circuit having logic gatesHITACHI LTD·Filed 1995·Granted Aug 6, 1996·4 cites·26 claims
- 3639US2004150055A1Semiconductor device and method of manufacturing a semiconductor deviceRENESAS TECH CORP·Filed 2004·Application pending·0 cites
- 3738US5661693AMemory device for synchronously reading and writing dataHITACHI LTD·Filed 1995·Granted Aug 26, 1997·6 cites·6 claims
- 3837US5091883ASemiconductor memory and microprocessorHITACHI LTD·Filed 1990·Granted Feb 25, 1992·7 cites·9 claims
- 3932US6032229ASemiconductor memory device and information processor using the sameHITACHI LTD·Filed 1995·Granted Feb 29, 2000·4 cites·9 claims
- 4030US5502820AMicroprocessor having high speed, low noise output buffersHITACHI LTD·Filed 1995·Granted Mar 26, 1996·0 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →