Inventor · disambiguated record
Yoshiki Niwa
Also filed as: NIWA YOSHIKI
13 granted patents·11 pending applications·616 citations·filing 1997–2017
93Inventor score
Top patents by PatentIndex Score
24 records- 0197US6446065B1Document retrieval assisting method and system for the same and document retrieval service using the sameHITACHI LTD·Filed 2000·Granted Sep 3, 2002·155 cites·12 claims
- 0291US5987460ADocument retrieval-assisting method and system for the same and document retrieval service using the same with document frequency and term frequencyHITACHI LTD·Filed 1997·Granted Nov 16, 1999·223 cites·24 claims
- 0388US6457004B1Document retrieval assisting method, system and service using closely displayed areas for titles and topicsHITACHI LTD·Filed 1998·Granted Sep 24, 2002·84 cites·13 claims
- 0479US6850937B1Word importance calculation method, document retrieving interface, word dictionary making methodHITACHI LTD·Filed 2000·Granted Feb 1, 2005·44 cites·8 claims
- 0577US6654738B2Computer program embodied on a computer-readable medium for a document retrieval service that retrieves documents with a retrieval service agent computerHITACHI LTD·Filed 2001·Granted Nov 25, 2003·27 cites·1 claims
- 0676US6745183B2Document retrieval assisting method and system for the same and document retrieval service using the sameHITACHI LTD·Filed 2002·Granted Jun 1, 2004·24 cites·2 claims
- 0769US10699057B2System and method for controlling information presented to user referring to contentsHITACHI LTD·Filed 2015·Granted Jun 30, 2020·1 cites·13 claims
- 0867US7277881B2Document retrieval system and search serverHITACHI LTD·Filed 2001·Granted Oct 2, 2007·14 cites·17 claims
- 0967US6584460B1Method of searching documents and a service for searching documentsHITACHI LTD·Filed 1999·Granted Jun 24, 2003·28 cites·8 claims
- 1065US8046368B2Document retrieval system and document retrieval methodHITACHI LTD·Filed 2008·Granted Oct 25, 2011·5 cites·13 claims
- 1161US7590651B2Search apparatusHITACHI LTD·Filed 2006·Granted Sep 15, 2009·7 cites·18 claims
- 1258US2007271214A1Clinical trail support system using medical imaging informationHITACHI LTD·Filed 2007·Application pending·0 cites
- 1354US2007100885A1Clinical trial information processing system and methodHITACHI LTD·Filed 2006·Application pending·0 cites
- 1449US2018247240A1Judgment support system and judgment support methodHITACHI LTD·Filed 2017·Application pending·0 cites
- 1543US2004205059A1Information searching method, information search system, and search serverFiled 2004·Application pending·0 cites
- 1642US2003225755A1Document search method and system, and document search result display systemHITACHI LTD·Filed 2003·Application pending·0 cites
- 1740US2005278292A1Spelling variation dictionary generation systemHITACHI LTD·Filed 2004·Application pending·0 cites
- 1839US7065518B2Search systemHITACHI LTD·Filed 2002·Granted Jun 20, 2006·4 cites·8 claims
- 1939US2006106544A1Method and system for predicting functions of compoundOHTA YOSHIHIRO·Filed 2005·Application pending·0 cites
- 2038US2019180636A1Comprehension-level calculation device and comprehension-level calculation methodHITACHI LTD·Filed 2017·Application pending·0 cites
- 2136US2005278293A1Document retrieval system, search server, and search clientHITACHI LTD·Filed 2005·Application pending·0 cites
- 2233US2007185910A1Similar concept extraction system and similar concept extraction method utilizing graphic structureKOIKE ASAKO·Filed 2007·Application pending·0 cites
- 2332US2005080773A1Network drawing system and network drawing methodFiled 2004·Application pending·0 cites
- 2431US7693910B2Method of searching documents and a service for searching documentsHITACHI LTD·Filed 2002·Granted Apr 6, 2010·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →