Inventor · disambiguated record
Koichi Okazawa
Also filed as: OKAZAWA KOICHI
55 granted patents·3 pending applications·1,403 citations·filing 1988–2010
99Inventor score
Files withHITACHI LTD57
Top patents by PatentIndex Score
58 records- 0190US6035414AReliability of crossbar switches in an information processing systemHITACHI LTD·Filed 1997·Granted Mar 7, 2000·149 cites·15 claims
- 0289US5671371ABus control systemHITACHI LTD·Filed 1995·Granted Sep 23, 1997·104 cites·12 claims
- 0385US7152130B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2005·Granted Dec 19, 2006·8 cites·14 claims
- 0485US5774656AInformation processing system and method and service supplying method for use within a networkHITACHI LTD·Filed 1995·Granted Jun 30, 1998·103 cites·12 claims
- 0584US6546471B1Shared memory multiprocessor performing cache coherencyHITACHI LTD·Filed 2000·Granted Apr 8, 2003·34 cites·4 claims
- 0683US6810461B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2001·Granted Oct 26, 2004·20 cites·23 claims
- 0783US6334164B1Bus system for use with information processing apparatusHITACHI LTD·Filed 2000·Granted Dec 25, 2001·20 cites·11 claims
- 0882US6519640B2Accessible network of performance index tablesHITACHI LTD·Filed 2002·Granted Feb 11, 2003·22 cites·7 claims
- 0982US6094674AInformation processing system and information processing method and quality of service supplying method for use with the systemHITACHI LTD·Filed 1998·Granted Jul 25, 2000·80 cites·9 claims
- 1082US5668956ABus system for use with information processing apparatusHITACHI LTD·Filed 1995·Granted Sep 16, 1997·69 cites·7 claims
- 1182US5483642ABus system for use with information processing apparatusHITACHI LTD·Filed 1994·Granted Jan 9, 1996·59 cites·20 claims
- 1281US7177970B2Bus control systemHITACHI LTD·Filed 2002·Granted Feb 13, 2007·17 cites·24 claims
- 1381US6907489B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2004·Granted Jun 14, 2005·16 cites·18 claims
- 1481US5506973ABus system for use with information processing apparatusHITACHI LTD·Filed 1995·Granted Apr 9, 1996·63 cites·44 claims
- 1579US6519667B2Bus control systemHITACHI LTD·Filed 2001·Granted Feb 11, 2003·15 cites·49 claims
- 1678US5034733AMethod and apparatus for rotating dots dataHITACHI LTD·Filed 1988·Granted Jul 23, 1991·40 cites·15 claims
- 1777US6088770AShared memory multiprocessor performing cache coherencyHITACHI LTD·Filed 1998·Granted Jul 11, 2000·67 cites·11 claims
- 1875US7577781B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2008·Granted Aug 18, 2009·3 cites·28 claims
- 1974US6195719B1Bus system for use with information processing apparatusHITACHI LTD·Filed 2000·Granted Feb 27, 2001·10 cites·30 claims
- 2073US6378021B1Switch control method and apparatus in a system having a plurality of processorsHITACHI LTD·Filed 1999·Granted Apr 23, 2002·77 cites·27 claims
- 2173US6370577B1Information processing system having a network and a directory which may be referenced to supply information to an apparatusHITACHI LTD·Filed 2000·Granted Apr 9, 2002·10 cites·7 claims
- 2271US7398346B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2006·Granted Jul 8, 2008·2 cites·5 claims
- 2371US6219735B1Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgementHITACHI LTD·Filed 2000·Granted Apr 17, 2001·9 cites·6 claims
- 2467US6006302AMultiple bus system using a data transfer unitHITACHI LTD·Filed 1999·Granted Dec 21, 1999·25 cites·47 claims
- 2565US7802045B2Bus system for use with information processing apparatusHITACHI LTD·Filed 2009·Granted Sep 21, 2010·1 cites·64 claims
- 2665US7447708B2Data processing apparatus and network system that outputs quality of service information to a userHITACHI LTD·Filed 2005·Granted Nov 4, 2008·1 cites·14 claims
- 2765US7340552B2Bus control systemHITACHI LTD·Filed 2006·Granted Mar 4, 2008·1 cites·6 claims
- 2865US6098136AMultiple bus system using a data transfer unitHITACHI LTD·Filed 1999·Granted Aug 1, 2000·23 cites·20 claims
- 2965US5428753AMethod for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgmentHITACHI LTD·Filed 1993·Granted Jun 27, 1995·24 cites·12 claims
- 3064US6219738B1Information processing systemHITACHI LTD·Filed 2000·Granted Apr 17, 2001·5 cites·6 claims
- 3162US6868446B2Data processing apparatus and network system that outputs quality of service information to a userHITACHI LTD·Filed 2003·Granted Mar 15, 2005·4 cites·11 claims
- 3261US5381544ACopyback memory system and cache memory controller which permits access while error recovery operations are performedHITACHI LTD·Filed 1992·Granted Jan 10, 1995·20 cites·18 claims
- 3361US5048101AElectronic filing deviceHITACHI LTD·Filed 1989·Granted Sep 10, 1991·16 cites·22 claims
- 3460US6584530B2Information processing system, bus arbiter, and bus controlling methodHITACHI LTD·Filed 2002·Granted Jun 24, 2003·6 cites·2 claims
- 3560US6341323B2Information processing systemHITACHI LTD·Filed 2001·Granted Jan 22, 2002·3 cites·13 claims
- 3660US5941973ABus control system incorporating the coupling of two split-transaction busses of different hierarchyHITACHI LTD·Filed 1998·Granted Aug 24, 1999·19 cites·47 claims
- 3758US4943857ASynchronizing circuit for an external signal and an internal sampling clock signalHITACHI LTD·Filed 1988·Granted Jul 24, 1990·16 cites·5 claims
- 3857US5881255ABus control system incorporating the coupling of two split-transaction busses of different hierarchyHITACHI LTD·Filed 1997·Granted Mar 9, 1999·17 cites·4 claims
- 3956US7711817B2Data processing apparatus and network system that outputs quality of service information to a userHITACHI LTD·Filed 2008·Granted May 4, 2010·0 cites·5 claims
- 4056US6131169AReliability of crossbar switches in an information processing systemHITACHI LTD·Filed 1999·Granted Oct 10, 2000·25 cites·4 claims
- 4156US5751976ABus system for use with information processing apparatusHITACHI LTD·Filed 1996·Granted May 12, 1998·20 cites·6 claims
- 4255US2010306438A1Bus system for use with information processing apparatusHITACHI LTD·Filed 2010·Application pending·0 cites
- 4354US5889971ABus system for use with information processing apparatusHITACHI LTD·Filed 1997·Granted Mar 30, 1999·17 cites·32 claims
- 4452US6748463B1Information processor with snoop suppressing function, memory controller, and direct memory access processing methodHITACHI LTD·Filed 1996·Granted Jun 8, 2004·32 cites·9 claims
- 4552US5935231ABus system for use with information processing apparatusHITACHI LTD·Filed 1998·Granted Aug 10, 1999·15 cites·23 claims
- 4648US6021455AMethod and system for arbitrating a bus according to the status of a buffer and destination informationHITACHI LTD·Filed 1996·Granted Feb 1, 2000·17 cites·6 claims
- 4747US5749093AEnhanced information processing system using cache memory indication during DMA accessingHITACHI LTD·Filed 1995·Granted May 5, 1998·20 cites·13 claims
- 4846US5657458AMethod for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgmentHITACHI LTD·Filed 1995·Granted Aug 12, 1997·10 cites·20 claims
- 4946US2003084218A1Method for controlling a bus to progress transfer cycles without inserting a cycle for acknowledgmentFiled 2002·Application pending·0 cites
- 5045US6128688ABus control systemHITACHI LTD·Filed 1999·Granted Oct 3, 2000·8 cites·24 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 →