HO

Hiroo Okamoto

HI Hitachi: 4 patents #332 of 4,225Top 8%
Overall (2003): #16,361 of 273,478Top 6%
4
Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6606385 Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same Makoto Aikawa, Kazuo Takaragi, Hiroyuki Koreeda, Manabu Sasamoto, Takaharu Noguchi +2 more 2003-08-12
6600870 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal Kyoichi Hosokawa, Hitoaki Owashi, Hiroaki Tachibana, Takaharu Noguchi 2003-07-29
6587638 Recording/ reproducing apparatus and input/ output device Katsuyuki Watanabe, Hideo Nishijima, Motoyoshi Sasaki 2003-07-01
6519411 Digital signal recording and reproduction apparatus suitable for recording and reproducing a compressed video signal Naozumi Sugimura 2003-02-11