Inventor · disambiguated record
Yasushi Akao
Also filed as: AKAO YASUSHI
52 granted patents·6 pending applications·1,681 citations·filing 1984–2011
99Inventor score
Top patents by PatentIndex Score
58 records- 0196US4615005AData processing apparatus with clock signal control by microinstruction for reduced power consumption and method thereforHITACHI LTD·Filed 1984·Granted Sep 30, 1986·185 cites·32 claims
- 0291US7054990B1External storage device using non-volatile semiconductor memoryRENESAS TECH CORP·Filed 2000·Granted May 30, 2006·75 cites·21 claims
- 0391US6748507B2Single-chip microcomputer with integral clock generating unit providing clock signals to CPU, internal circuit modules and synchronously controlling external dynamic memoryHITACHI LTD·Filed 2002·Granted Jun 8, 2004·46 cites·3 claims
- 0489US5930523AMicrocomputer having multiple bus structure coupling CPU to other processing elementsHITACHI LTD·Filed 1998·Granted Jul 27, 1999·93 cites·7 claims
- 0589US5867726AMicrocomputerHITACHI LTD·Filed 1996·Granted Feb 2, 1999·109 cites·5 claims
- 0685US6272620B1Central processing unit having instruction queue of 32-bit length fetching two instructions of 16-bit fixed length in one instruction fetch operationHITACHI LTD·Filed 2000·Granted Aug 7, 2001·22 cites·6 claims
- 0785US5682545AMicrocomputer having 16 bit fixed length instruction formatHITACHI LTD·Filed 1995·Granted Oct 28, 1997·64 cites·33 claims
- 0880US7363466B2MicrocomputerRENESAS TECH CORP·Filed 2006·Granted Apr 22, 2008·6 cites·13 claims
- 0979US6591294B2Processing system with microcomputers each operable in master and slave modes using configurable bus access control terminals and bus use priority signalsHITACHI LTD·Filed 2001·Granted Jul 8, 2003·16 cites·10 claims
- 1079US5884092ASystem for maintaining fixed-point data alignment within a combination CPU and DSP systemHITACHI LTD·Filed 1996·Granted Mar 16, 1999·72 cites·13 claims
- 1179US5530965AMultiply connectable microprocessor and microprocessor systemHITACHI LTD·Filed 1995·Granted Jun 25, 1996·76 cites·3 claims
- 1277US5321845ASingle-chip microcomputer including non-volatile memory elementsHITACHI LTD·Filed 1993·Granted Jun 14, 1994·56 cites·12 claims
- 1376US5608881AMicrocomputer system for accessing hierarchical busesHITACHI LTD·Filed 1993·Granted Mar 4, 1997·71 cites·9 claims
- 1475US4881167AData memory systemHITACHI LTD·Filed 1989·Granted Nov 14, 1989·46 cites·21 claims
- 1573US6434690B1Microprocessor having a DSP and a CPU and a decoder discriminating between DSP-type instructions and CUP-type instructionsHITACHI LTD·Filed 1999·Granted Aug 13, 2002·41 cites·29 claims
- 1670US5900008ASemiconductor integrated circuit deviceHITACHI LTD·Filed 1996·Granted May 4, 1999·55 cites·27 claims
- 1770US5832248ASemiconductor integrated circuit having CPU and multiplierHITACHI LTD·Filed 1995·Granted Nov 3, 1998·60 cites·17 claims
- 1869US6279063B1Microcomputer system with at least first and second microcomputers each operable in master and slave modes with configurable bus access control terminals and bus use priority controllerHITACHI LTD·Filed 1999·Granted Aug 21, 2001·32 cites·9 claims
- 1969US6223265B1Single-chip microcomputer synchronously controlling external synchronous memory responsive to memory clock signal and clock enable signalHITACHI LTD·Filed 1998·Granted Apr 24, 2001·31 cites·19 claims
- 2068US6343357B1Microcomputer and dividing circuitHITACHI LTD·Filed 2000·Granted Jan 29, 2002·6 cites·58 claims
- 2168US5307464AMicroprocessor and method for setting up its peripheral functionsHITACHI LTD·Filed 1990·Granted Apr 26, 1994·49 cites·13 claims
- 2267US5426744ASingle chip microprocessor for satisfying requirement specification of usersHITACHI LTD·Filed 1994·Granted Jun 20, 1995·48 cites·22 claims
- 2366US5005121AIntegrated CPU and DMA with shared executing unitHITACHI LTD·Filed 1989·Granted Apr 2, 1991·35 cites·29 claims
- 2465US6996700B2Microcomputer and dividing circuitRENESAS TECH CORP·Filed 2001·Granted Feb 7, 2006·5 cites·5 claims
- 2564US6735683B2Single-chip microcomputer with hierarchical internal bus structure having data and address signal lines coupling CPU with other processing elementsHITACHI LTD·Filed 2002·Granted May 11, 2004·9 cites·15 claims
- 2662US6351788B1Data processor and data processing systemHITACHI LTD·Filed 1996·Granted Feb 26, 2002·50 cites·12 claims
- 2760US7069423B2MicrocomputerHITACHI LTD·Filed 2002·Granted Jun 27, 2006·4 cites·9 claims
- 2857US6668266B2Data processing device having a central processing unit and digital signal processing unitHITACHI LTD·Filed 2001·Granted Dec 23, 2003·4 cites·8 claims
- 2957US6405302B1MicrocomputerHITACHI LTD·Filed 1999·Granted Jun 11, 2002·20 cites·34 claims
- 3057US5969976ADivision circuit and the division method thereofHITACHI LTD·Filed 1997·Granted Oct 19, 1999·16 cites·37 claims
- 3156US6122724ACentral processing unit having instruction queue of 32-bit length fetching two instructions of 16-bit fixed length in one instruction fetch operationHITACHI LTD·Filed 1999·Granted Sep 19, 2000·15 cites·8 claims
- 3256US5511211AMethod for flexibly developing a data processing system comprising rewriting instructions in non-volatile memory elements after function check indicates failure of required functionsHITACHI LTD·Filed 1993·Granted Apr 23, 1996·29 cites·14 claims
- 3356US2008313444A1Microcomputer and dividing circuitKAWASAKI SHUMPEI·Filed 2008·Application pending·0 cites
- 3455US5748977AMultiply connectable microprocessor and microprocessor systemHITACHI LTD·Filed 1996·Granted May 5, 1998·25 cites·1 claims
- 3555US5247521AData processorHITACHI LTD·Filed 1992·Granted Sep 21, 1993·31 cites·27 claims
- 3654US7558944B2MicrocomputerRENESAS TECH CORP·Filed 2008·Granted Jul 7, 2009·0 cites·9 claims
- 3754US5987589AMicrocomputer and microcomputer systemHITACHI LTD·Filed 1997·Granted Nov 16, 1999·23 cites·27 claims
- 3854US2008263228A1Single-chip microcomputerKAWASAKI SHUMPEI·Filed 2008·Application pending·0 cites
- 3954US2010191934A1Microcomputer and dividing circuitRENESAS TECH CORP·Filed 2010·Application pending·0 cites
- 4053US6212620B1Single-chip microcomputer operable in master and slave modes and having configurable bus control terminalsHITACHI LTD·Filed 1998·Granted Apr 3, 2001·15 cites·14 claims
- 4153US2012023281A1Single-chip microcomputerKAWASAKI SHUMPEI·Filed 2011·Application pending·0 cites
- 4252US5410658AMicroprocessor for carrying out a plurality of different microprograms at the same time and method for controlling the microprocessorHITACHI LTD·Filed 1992·Granted Apr 25, 1995·24 cites·33 claims
- 4351US6889240B2Data processing device having a central processing unit and digital signal processing unitRENESAS TECH CORP·Filed 2003·Granted May 3, 2005·1 cites·6 claims
- 4451US2005251651A1Microcomputer and dividing circuitKAWASAKI SHUMPEI·Filed 2005·Application pending·0 cites
- 4550US6253308B1Microcomputer having variable bit width area for displacement and circuit for handling immediate data larger than instruction wordHITACHI LTD·Filed 1998·Granted Jun 26, 2001·11 cites·37 claims
- 4648US5991545AMicrocomputer having variable bit width area for displacement and circuit for handling immediate data larger than instruction wordHITACHI LTD·Filed 1995·Granted Nov 23, 1999·10 cites·21 claims
- 4747US2004199716A1Single-chip microcomputerFiled 2004·Application pending·0 cites
- 4846US5784637ASingle-chip semiconductor integrated circuit device and microcomputer integrated on a semiconductor chipHITACHI LTD·Filed 1995·Granted Jul 21, 1998·14 cites·8 claims
- 4946US5361374AIntegrated data processor having mode control register for controlling operation mode of serial communication unitHITACHI LTD·Filed 1993·Granted Nov 1, 1994·15 cites·3 claims
- 5044US6131154AMicrocomputer having variable bit width area for displacementHITACHI LTD·Filed 1997·Granted Oct 10, 2000·8 cites·7 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →