Inventor · disambiguated record
Ryouichi Kuriyama
Also filed as: KURIYAMA RYOUICHI
12 granted patents·3 pending applications·391 citations·filing 1989–2023
92Inventor score
Top patents by PatentIndex Score
15 records- 0174US5815658APortable terminal apparatus for IC card compatible with a plurality of applicationsTOSHIBA KK·Filed 1997·Granted Sep 29, 1998·169 cites·11 claims
- 0269US6125452ATerminal unit for IC card using plural protocols and control method thereforTOSHIBA KK·Filed 1998·Granted Sep 26, 2000·39 cites·19 claims
- 0367US8266364B2Portable electronic device and control method for processing passportsKURIYAMA RYOUICHI·Filed 2008·Granted Sep 11, 2012·4 cites·6 claims
- 0464US5202923APortable electronic device capable of registering subprogramsTOSHIBA KK·Filed 1990·Granted Apr 13, 1993·49 cites·21 claims
- 0561US12073280B2IC card, IC card processing system, and computer-readable storage mediumTOSHIBA KK·Filed 2022·Granted Aug 27, 2024·0 cites·10 claims
- 0661US6641045B1Portable electronic device with self-diagnostic functionTOSHIBA KK·Filed 2000·Granted Nov 4, 2003·8 cites·8 claims
- 0758US12512980B2IC card, portable electronic device, and issuing deviceTOSHIBA KK·Filed 2023·Granted Dec 30, 2025·0 cites·12 claims
- 0856US6044470AIC card portable terminal apparatusTOSHIBA KK·Filed 1997·Granted Mar 28, 2000·51 cites·17 claims
- 0955US7434066B2Portable electronic deviceTOSHIBA KK·Filed 2004·Granted Oct 7, 2008·4 cites·12 claims
- 1053US5101410AData transmission system for a portable data storage mediumTOSHIBA KK·Filed 1989·Granted Mar 31, 1992·22 cites·14 claims
- 1152US2023214474A1Portable electronic device and ic cardTOSHIBA KK·Filed 2023·Application pending·0 cites
- 1248US2009177921A1Portable electronic device and control method thereofTOSHIBA KK·Filed 2009·Application pending·0 cites
- 1344US2019073465A1Ic card, portable electronic device, and method of controlling an ic cardTOSHIBA KK·Filed 2018·Application pending·0 cites
- 1443US5910652APortable terminal apparatus for an IC card for supplying a power source voltage in a predetermined timingTOSHIBA KK·Filed 1997·Granted Jun 8, 1999·11 cites·5 claims
- 1539US5285200APortable electronic device and a method for processing data thereforeTOSHIBA KK·Filed 1993·Granted Feb 8, 1994·34 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →