IE

Isao Echizen

HI Hitachi: 3 patents #329 of 3,771Top 9%
Pioneer Electronic: 1 patents #27 of 76Top 40%
SO Sony: 1 patents #794 of 2,482Top 35%
Overall (2004): #27,736 of 270,089Top 15%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6826291 Method and system for embedding information into contents Hiroshi Yoshiura, Junichi Taguchi, Akira Maeda, Takao Arai, Toshifumi Takeuchi 2004-11-30
6728408 Water-mark embedding method and system Hiroshi Yoshiura, Masafumi Nakamura, Takao Arai, Toshifumi Takeuchi 2004-04-27
6711276 Control method and apparatus for embedding information in data Hiroshi Yoshiura, Takao Arai, Hiroyuki Kimura, Toshifumi Takeuchi, Yoshiaki Moriyama +2 more 2004-03-23