Inventor
KANETSUNA KATSUYUKI
JP2 patents
Patents
2 patentsUS8090764B2Jan 3, 2012
Communication system, communication apparatus, communication method, storage medium, and package medium
SATO TAKASHI8 citations81
US8249991B2Aug 21, 2012
Contents reproduction expiration management system, contents reproduction expiration managing method, terminal apparatus, server apparatus, program, and recording medium for managing permission/non-permission of reproduction of contents
SATO TAKASHI0 citations36