HO

Hiroo Okamoto

HI Hitachi: 5 patents #158 of 3,950Top 4%
Overall (2002): #9,488 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6430362 Digital video signal recording/reproducing method and apparatus Nobutaka Amada, Kyoichi Hosokawa 2002-08-06
6397000 Digital signal recording devices, digital signal recording/ playback devices, and digital signal receiving/recording/playback devices Yuji Hatanaka 2002-05-28
6388831 Apparatus and method for limiting the reproduction of main information Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more 2002-05-14
6363210 Communication system for encrypted data and apparatus for selectively recording and reproducing received analog signal and received digital signal Hitoaki Owashi, Takaharu Noguchi, Kyoichi Hosokawa, Kazuhiko YOSHIZAWA, Nobutaka Amada +3 more 2002-03-26
6349012 Magnetic recording and/or reproducing apparatus Nobutaka Amada, Hideo Nishijima, Shigeru Yamazaki 2002-02-19