Inventor
TAKAGI NOBUYA
JP4 patents
⚠️ This page may combine multiple inventors who share the name “TAKAGI NOBUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
3 patentsUS5227613AJul 13, 1993
Secure encrypted data communication system having physically secure ic cards and session key generation based on card identifying information
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD98 citations94
US5109152AApr 28, 1992
Communication apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD115 citations92
US5408082AApr 18, 1995
IC card with hierarchical file structure
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD73 citations90