Inventor
NAKAHARA TOHRU
JP15 patents
⚠️ This page may combine multiple inventors who share the name “NAKAHARA TOHRU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC CORP
6 patentsUS7725399B2May 25, 2010
Content usage device and network system, and license information acquisition method
PANASONIC CORP34 citations92
US7451202B2Nov 11, 2008
Information management system having a common management server for establishing secure communication among groups formed out of a plurality of terminals
PANASONIC CORP24 citations92
US7940935B2May 10, 2011
Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium
PANASONIC CORP19 citations84
US7715564B2May 11, 2010
License information conversion apparatus
PANASONIC CORP6 citations62
US7630922B2Dec 8, 2009
Content distribution management system and content distribution management method
PANASONIC CORP4 citations62
US7984508B2Jul 19, 2011
Contents using device, and contents using method
PANASONIC CORP2 citations60
OKAMOTO RYUICHI
3 patentsUS8260714B2Sep 4, 2012
Terminal apparatus and system thereof
OKAMOTO RYUICHI3 citations59
US9106797B2Aug 11, 2015
Content reproducing device and content reproducing method
OKAMOTO RYUICHI0 citations49
US8166555B2Apr 24, 2012
Content reproducing device and content preproducing method
OKAMOTO RYUICHI0 citations49
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
2 patentsUS7359883B2Apr 15, 2008
License management system, license management device, relay device and terminal device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US7260720B2Aug 21, 2007
Device authentication system and method for determining whether a plurality of devices belong to a group
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84