Inventor · disambiguated record
Masahisa Kawashima
Also filed as: KAWASHIMA MASAHISA
8 granted patents·4 pending applications·114 citations·filing 2001–2025
84Inventor score
Top patents by PatentIndex Score
12 records- 0191US7558827B2Mail distribution system, mail distribution method, and mail distribution programNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Jul 7, 2009·76 cites·15 claims
- 0279US10389753B2Security system and method for internet of things infrastructure elementsNTT INNOVATION INST INC·Filed 2017·Granted Aug 20, 2019·7 cites·32 claims
- 0374US7580980B2Email system restoring recipient identifier based on identifier-for-disclosure for establishing communication between sender and recipientNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Aug 25, 2009·18 cites·56 claims
- 0472US2025301046A1Data processing system, data processing method and storage mediumNIPPON TELEGRAPH & TELEPHONE·Filed 2025·Application pending·0 cites
- 0565US7386574B2File transfer system, apparatus, method and computer readable medium storing file transfer programNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted Jun 10, 2008·11 cites·19 claims
- 0665US2025240098A1Optical communication apparatus, optical communication system and transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 0765US2024413907A1Optical communication apparatus, optical communication system and transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 0858US8775796B2Certificate authenticating method, certificate issuing device, and authentication deviceKARASAWA KEI·Filed 2008·Granted Jul 8, 2014·2 cites·22 claims
- 0957US12355848B2Data processing system, data providing system, event information generating apparatus, data processing apparatus, data processing method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Granted Jul 8, 2025·0 cites·8 claims
- 1052US12238171B2Information communication apparatus, information communication method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Granted Feb 25, 2025·0 cites·7 claims
- 1139US11757857B2Digital credential issuing system and methodNTT RESEARCH INC·Filed 2017·Granted Sep 12, 2023·0 cites·20 claims
- 1234US2023224360A1Processing system, and processing methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →