Inventor · disambiguated record
Katashi Nagao
Also filed as: NAGAO KATASHI
12 granted patents·2 pending applications·878 citations·filing 1991–2009
94Inventor score
Top patents by PatentIndex Score
14 records- 0197US5424947ANatural language analyzing apparatus and method, and construction of a knowledge base for natural language analysisIBM·Filed 1991·Granted Jun 13, 1995·475 cites·31 claims
- 0295US7191131B1Electronic document processing apparatusSONY CORP·Filed 2000·Granted Mar 13, 2007·191 cites·98 claims
- 0385US7536027B2Digital content reproduction, data acquisition, metadata management, and digital watermark embeddingIBM·Filed 2007·Granted May 19, 2009·8 cites·2 claims
- 0485US7227971B2Digital content reproduction, data acquisition, metadata management, and digital watermark embeddingIBM·Filed 2002·Granted Jun 5, 2007·25 cites·9 claims
- 0583US7610546B1Document processing apparatus having capability of controlling video dataSONY CORP·Filed 2000·Granted Oct 27, 2009·37 cites·43 claims
- 0682US7454698B2Digital document browsing system and method thereofIBM·Filed 2002·Granted Nov 18, 2008·28 cites·29 claims
- 0782US7076732B2Document processing apparatus having an authoring capability for describing a document structureSONY CORP·Filed 2005·Granted Jul 11, 2006·11 cites·1 claims
- 0882US6981218B1Document processing apparatus having an authoring capability for describing a document structureSONY CORP·Filed 2000·Granted Dec 27, 2005·31 cites·18 claims
- 0975US6985864B2Electronic document processing apparatus and method for forming summary text and speech read-outSONY CORP·Filed 2004·Granted Jan 10, 2006·21 cites·74 claims
- 1074US7930309B2Document processing method and document processing apparatus, and recording mediumSONY CORP·Filed 2006·Granted Apr 19, 2011·6 cites·13 claims
- 1168US7047486B1Method and device for processing documents and recording mediumSONY CORP·Filed 2000·Granted May 16, 2006·21 cites·15 claims
- 1265US2010049612A1Content provision, distribution, registration, management, and reproductionIBM·Filed 2009·Application pending·0 cites
- 1360US2002120515A1Content provision, distribution, registration, management, and reproductionIBM·Filed 2002·Application pending·0 cites
- 1450US7200808B1Electronic document processorSONY CORP·Filed 1999·Granted Apr 3, 2007·24 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Katashi Nagao files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →