Inventor · disambiguated record
Masakazu Uehata
Also filed as: UEHATA MASAKAZU
4 granted patents·1 pending application·14 citations·filing 2002–2014
67Inventor score
Top patents by PatentIndex Score
5 records- 0180US9628281B2Server generating basic signature data using signing target data, electronic signature value and timestampSEIKO INSTR INC·Filed 2014·Granted Apr 18, 2017·6 cites·2 claims
- 0270US8041980B2Time certifying server, reference time distributing server, time certifying method, reference time distributing method, time certifying program, and communication protocol programSEIKO INSTR INC·Filed 2006·Granted Oct 18, 2011·8 cites·9 claims
- 0343US8819441B2Long-term signature server, long-term signature terminal, and long-term signature verification serverMURAO SHINICHI·Filed 2010·Granted Aug 26, 2014·0 cites·15 claims
- 0438US9363411B2Data certification system, server device, client device, publishing server, and data certification methodMURAO SHINICHI·Filed 2012·Granted Jun 7, 2016·0 cites·9 claims
- 0534US2003009697A1Server system and security systemFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →