Inventor · disambiguated record
Fumio Arakawa
Also filed as: ARAKAWA FUMIO
43 granted patents·9 pending applications·858 citations·filing 1980–2017
98Inventor score
Top patents by PatentIndex Score
52 records- 0196US6327605B2Data processor and data processing systemHITACHI LTD·Filed 2001·Granted Dec 4, 2001·103 cites·6 claims
- 0288US8402256B2Processing prefix code in instruction queue storing fetched sets of plural instructions in superscalar processorARAKAWA FUMIO·Filed 2009·Granted Mar 19, 2013·18 cites·4 claims
- 0387US8160781B2Vehicular control system and control methodNAONO KEN·Filed 2005·Granted Apr 17, 2012·25 cites·19 claims
- 0487US6989686B2Logic circuit whose power switch is quickly turned on and offRENESAS TECH CORP·Filed 2004·Granted Jan 24, 2006·28 cites·20 claims
- 0587US6092172AData processor and data processing system having two translation lookaside buffersHITACHI LTD·Filed 1997·Granted Jul 18, 2000·123 cites·18 claims
- 0686US7602779B2Microprocessor, network system and communication methodHITACHI LTD·Filed 2005·Granted Oct 13, 2009·14 cites·13 claims
- 0783US6243732B1Data processor and data processing systemHITACHI LTD·Filed 2000·Granted Jun 5, 2001·27 cites·9 claims
- 0882US5515519AData processor and method utilizing coded no-operation instructionsHITACHI LTD·Filed 1994·Granted May 7, 1996·94 cites·15 claims
- 0980US6532528B1Data processor and data processor system having multiple modes of address indexing and operationHITACHI LTD·Filed 2000·Granted Mar 11, 2003·24 cites·5 claims
- 1079US6038582AData processor and data processing systemHITACHI LTD·Filed 1997·Granted Mar 14, 2000·67 cites·15 claims
- 1176US5751621AMultiply-add unit and data processing apparatus using itHITACHI LTD·Filed 1995·Granted May 12, 1998·68 cites·16 claims
- 1274US7028066B2Vector SIMD processorRENESAS TECH CORP·Filed 2001·Granted Apr 11, 2006·13 cites·3 claims
- 1373US7222244B2Semiconductor device including a prediction circuit to control a power status control circuit which controls the power status of a function circuitHITACHI LTD·Filed 2001·Granted May 22, 2007·17 cites·2 claims
- 1473US6978460B2Processor having priority changing function according to threadsRENESAS TECH CORP·Filed 2001·Granted Dec 20, 2005·18 cites·11 claims
- 1571US7043627B2SIMD operation system capable of designating plural registers via one register designating fieldHITACHI LTD·Filed 2001·Granted May 9, 2006·17 cites·4 claims
- 1670US8341204B2Vector SIMD processorARAKAWA FUMIO·Filed 2009·Granted Dec 25, 2012·3 cites·5 claims
- 1769US9612838B2Data processor including prefix instruction selecting a flag out of a plurality of flags generated by a subsequent instruction operating on multiple operand sizes in parallelRENESAS ELECTRONICS CORP·Filed 2014·Granted Apr 4, 2017·1 cites·2 claims
- 1869US7243208B2Data processor and IP module for data processorRENESAS TECH CORP·Filed 2003·Granted Jul 10, 2007·12 cites·20 claims
- 1966US7567996B2Vector SIMD processorRENESAS TECH CORP·Filed 2005·Granted Jul 28, 2009·2 cites·3 claims
- 2064US7447887B2Multithread processorHITACHI LTD·Filed 2006·Granted Nov 4, 2008·2 cites·5 claims
- 2164US6738890B2Data processorRENESAS TECH CORP·Filed 2002·Granted May 18, 2004·8 cites·20 claims
- 2263US6772186B1Multimedia multiply-adderRENESAS TECH CORP·Filed 2000·Granted Aug 3, 2004·9 cites·14 claims
- 2362US10235179B2Data processor selecting a flag out of a plurality of flags generated by an instruction operating on multiple operand sizes in parallelRENESAS ELECTRONICS CORP·Filed 2017·Granted Mar 19, 2019·0 cites·8 claims
- 2461US7243119B1Floating point computing unitHITACHI LTD·Filed 2000·Granted Jul 10, 2007·8 cites·6 claims
- 2560US9910674B2Data processor with extended instruction code space including a prohibition combination pattern as a separate instructionARAKAWA FUMIO·Filed 2012·Granted Mar 6, 2018·1 cites·8 claims
- 2660US9891921B2Data processor selecting a flag out of a plurality of flags generated by an instruction operating on multiple operand sizes in parallelRENESAS ELECTRONICS CORP·Filed 2017·Granted Feb 13, 2018·0 cites·5 claims
- 2760US7962728B2Data processorHITACHI LTD·Filed 2009·Granted Jun 14, 2011·1 cites·4 claims
- 2859US7328355B2Data processing device and semiconductor deviceHITACHI LTD·Filed 2004·Granted Feb 5, 2008·6 cites·13 claims
- 2958US7434030B2Processor system having accelerator of Java-type of programming languageRENESAS TECH CORP·Filed 2001·Granted Oct 7, 2008·6 cites·11 claims
- 3058US5454087ABranching system for return from subroutine using target address in return buffer accessed based on branch type information in BHTHITACHI LTD·Filed 1992·Granted Sep 26, 1995·32 cites·5 claims
- 3157US5394558AData processor having an execution unit controlled by an instruction decoder and a microprogram ROMHITACHI LTD·Filed 1994·Granted Feb 28, 1995·30 cites·2 claims
- 3255US8402254B2Flag generation and use in processor with same processing for operation on small size operand as low order bits portion of operation on large size operandARAKAWA FUMIO·Filed 2009·Granted Mar 19, 2013·0 cites·3 claims
- 3354US9116688B2Executing prefix code to substitute fixed operand in subsequent fixed register instructionRENESAS ELECTRONICS CORP·Filed 2013·Granted Aug 25, 2015·0 cites·2 claims
- 3454US8762689B2RISC processor with instruction executing on different size operand and prefix instruction identifying select flag update for respective sizeARAKAWA FUMIO·Filed 2012·Granted Jun 24, 2014·0 cites·8 claims
- 3554US2013166878A1Vector simd processorRENESAS ELECTRONICS CORP·Filed 2012·Application pending·0 cites
- 3653US5408625AMicroprocessor capable of decoding two instructions in parallelHITACHI LTD·Filed 1993·Granted Apr 18, 1995·26 cites·3 claims
- 3753US2009031114A1Multithread processorHITACHI LTD·Filed 2008·Application pending·0 cites
- 3852US5889690AMultiply-add unit and data processing apparatus using itHITACHI LTD·Filed 1998·Granted Mar 30, 1999·23 cites·20 claims
- 3951US7610471B2Data processorHITACHI LTD·Filed 2007·Granted Oct 27, 2009·0 cites·17 claims
- 4050US5555394AData processor with the ability of fast partial clearing of buffer memoryHITACHI LTD·Filed 1993·Granted Sep 10, 1996·20 cites·12 claims
- 4149US7568084B2Semiconductor integrated circuit including multiple basic cells formed in arraysHITACHI LTD·Filed 2004·Granted Jul 28, 2009·4 cites·8 claims
- 4249US2009113186A1Microcontroller and controlling systemHITACHI LTD·Filed 2008·Application pending·0 cites
- 4349US2007239960A1Data processor and IP module for data processorITO MASAYUKI·Filed 2007·Application pending·0 cites
- 4448US6901501B2Data processorRENESAS TECH CORP·Filed 2004·Granted May 31, 2005·0 cites·7 claims
- 4548US2009106533A1Data processing apparatusRENESAS TECH CORP·Filed 2008·Application pending·0 cites
- 4645US2009282213A1Semiconductor integrated circuitTANAKA HIROSHI·Filed 2009·Application pending·0 cites
- 4744US6822476B2Logic circuit whose power switch is quickly turned on and offRENESAS TECH CORP·Filed 2003·Granted Nov 23, 2004·2 cites·20 claims
- 4844US2004054874A1Data processing device with a spare field in the instructionFiled 2003·Application pending·0 cites
- 4942US2006101465A1Distributed control systemHITACHI LTD·Filed 2005·Application pending·0 cites
- 5036US5220670AMicroprocessor having ability to carry out logical operation on internal busHITACHI LTD·Filed 1989·Granted Jun 15, 1993·6 cites·8 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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