Inventor · disambiguated record
Teruo Nagasawa
Also filed as: NAGASAWA TERUO
14 granted patents·417 citations·filing 1991–2005
93Inventor score
Files withHITACHI LTD14
Top patents by PatentIndex Score
14 records- 0193US6684306B1Data backup in presence of pending hazardHITACHI LTD·Filed 2000·Granted Jan 27, 2004·80 cites·24 claims
- 0293US6647476B2Subsystem replacement methodHITACHI LTD·Filed 2000·Granted Nov 11, 2003·74 cites·14 claims
- 0391US6240494B1Subsystem replacement methodHITACHI LTD·Filed 1998·Granted May 29, 2001·132 cites·9 claims
- 0481US6950917B2Subsystem replacement methodHITACHI LTD·Filed 2003·Granted Sep 27, 2005·21 cites·16 claims
- 0577US6845435B2Data backup in presence of pending hazardHITACHI LTD·Filed 2004·Granted Jan 18, 2005·21 cites·24 claims
- 0677US6665781B2Method and apparatus for data duplexing in storage unit systemHITACHI LTD·Filed 2001·Granted Dec 16, 2003·23 cites·9 claims
- 0759US5475859ADisk cache unit having reduced waiting times for data transferHITACHI LTD·Filed 1994·Granted Dec 12, 1995·29 cites·5 claims
- 0854US7213114B2Remote copy for a storage controller in a heterogeneous environmentHITACHI LTD·Filed 2004·Granted May 1, 2007·3 cites·7 claims
- 0953US7114049B2Adaptive remote copy in a heterogeneous environmentHITACHI LTD·Filed 2003·Granted Sep 26, 2006·3 cites·13 claims
- 1053US6988176B2Method and apparatus for data duplexing in storage unit systemHITACHI LTD·Filed 2003·Granted Jan 17, 2006·3 cites·14 claims
- 1149US7200729B2Subsystem replacement methodHITACHI LTD·Filed 2005·Granted Apr 3, 2007·0 cites·8 claims
- 1249US5369751ADisk cache control unitHITACHI LTD·Filed 1991·Granted Nov 29, 1994·19 cites·6 claims
- 1346US7069403B2Method and apparatus for data duplexing in storage unit systemHITACHI LTD·Filed 2003·Granted Jun 27, 2006·0 cites·20 claims
- 1441US6584473B2Information storage systemHITACHI LTD·Filed 1999·Granted Jun 24, 2003·9 cites·16 claims
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