Inventor
OKAYAMA MASATAKA
JP15 patents
⚠️ This page may combine multiple inventors who share the name “OKAYAMA MASATAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS6249767B1Jun 19, 2001
Portable information terminal surrounding formulation of an optimum plan
HITACHI LTD92 citations97
US6556767B2Apr 29, 2003
Video capture device
HITACHI LTD49 citations95
US7590856B2Sep 15, 2009
System for managing license for protecting content, server for issuing license for protecting content, and terminal for using content protected by license
HITACHI LTD47 citations92
US6842540B1Jan 11, 2005
Surveillance system
HITACHI LTD40 citations92
US6094521AJul 25, 2000
Information processing system
HITACHI LTD20 citations92
US5899575AMay 4, 1999
Video capture device, video recording/playing apparatus having the video capture device attached thereto, and video input device
HITACHI LTD31 citations92
US5367628ANov 22, 1994
Multi-window system and display method for controlling execution of an application for a window system and an application for a non-window system
HITACHI LTD23 citations90
US7734913B2Jun 8, 2010
Content transmission control device, content distribution device and content receiving device
HITACHI LTD8 citations82
US7293294B2Nov 6, 2007
Method and apparatus for using contents
HITACHI LTD18 citations81
US6462783B1Oct 8, 2002
Picture encoding method and apparatus
HITACHI LTD10 citations73
US6269215B1Jul 31, 2001
Information processing system
HITACHI LTD12 citations73
US8005887B2Aug 23, 2011
Gateway apparatus and system
HITACHI LTD0 citations49