Inventor

OHYA MITSUYOSHI

JP3 patents

Patents

3 patents

US6838891B2Jan 4, 2005

Semiconductor device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations89

US7011252B2Mar 14, 2006

IC card and OS activation method for the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations81

US7017825B2Mar 28, 2006

IC card and data processing method therefor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations57