Inventor · disambiguated record
Masakazu Fujio
Also filed as: FUJIO MASAKAZU
7 granted patents·4 pending applications·55 citations·filing 2003–2023
82Inventor score
Top patents by PatentIndex Score
11 records- 0184US12355890B2Authentication apparatus and authentication methodHITACHI LTD·Filed 2021·Granted Jul 8, 2025·2 cites·19 claims
- 0281US7047255B2Document information display system and method, and document search methodHITACHI LTD·Filed 2003·Granted May 16, 2006·35 cites·16 claims
- 0377US8774705B2Learning support system and learning support methodMINE RYUJI·Filed 2012·Granted Jul 8, 2014·5 cites·14 claims
- 0473US10719593B2Biometric signature system and biometric certificate registration methodHITACHI LTD·Filed 2016·Granted Jul 21, 2020·4 cites·9 claims
- 0572US11018876B2Signature verification system, signature verification method, and storage mediumHITACHI LTD·Filed 2017·Granted May 25, 2021·2 cites·15 claims
- 0661US7590651B2Search apparatusHITACHI LTD·Filed 2006·Granted Sep 15, 2009·7 cites·18 claims
- 0757US2014045162A1Device of Structuring Learning Contents, Learning-Content Selection Support System and Support Method Using the DeviceHITACHI LTD·Filed 2013·Application pending·0 cites
- 0854US2023419108A1Learning system and learning methodHITACHI LTD·Filed 2023·Application pending·0 cites
- 0954US2007100885A1Clinical trial information processing system and methodHITACHI LTD·Filed 2006·Application pending·0 cites
- 1041US2012221324A1Document Processing ApparatusMACHII KIMIYOSHI·Filed 2012·Application pending·0 cites
- 1140US11115214B2Biometric signature system and biometric signature methodHITACHI LTD·Filed 2018·Granted Sep 7, 2021·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →