HY

Hiroshi Yoshiura

HI Hitachi: 6 patents #68 of 3,771Top 2%
Pioneer Electronic: 1 patents #27 of 76Top 40%
SO Sony: 1 patents #794 of 2,482Top 35%
Overall (2004): #5,871 of 270,089Top 3%
6
Patents 2004

Issued Patents 2004

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6826291 Method and system for embedding information into contents Isao Echizen, Junichi Taguchi, Akira Maeda, Takao Arai, Toshifumi Takeuchi 2004-11-30
6775775 Method of physical individual authentication and system using the same Ryoichi Sasaki, Mitsuru Iwamura 2004-08-10
6728408 Water-mark embedding method and system Isao Echizen, Masafumi Nakamura, Takao Arai, Toshifumi Takeuchi 2004-04-27
6711276 Control method and apparatus for embedding information in data Isao Echizen, Takao Arai, Hiroyuki Kimura, Toshifumi Takeuchi, Yoshiaki Moriyama +2 more 2004-03-23
6707927 Steganographic system, method, program and storage medium therefor Kazumasa Kita, Yutaka Kurosu, Miki Tanaka, Shinobu Eikawa, Tomoyuki Kaji 2004-03-16
6690813 Method and apparatus for recording and reproducing electronic watermark information, and recording medium Hiroyuki Kimura, Takao Arai, Toshifumi Takeuchi 2004-02-10