Membership
Tour
Register
Log in
Koich Tanaka
Follow
Person
Kawasaki, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Method of watermark-embedding/extracting identification information...
Patent number
6,104,826
Issue date
Aug 15, 2000
Fujitsu Limited
Akira Nakagawa
G06 - COMPUTING CALCULATING COUNTING