HO

Hiroo Okamoto

HI Hitachi: 108 patents #25 of 28,497Top 1%
HC Hitachi Consumer Electronics Co.: 12 patents #7 of 447Top 2%
MA Maxell: 10 patents #58 of 437Top 15%
HM Hitachi Maxell: 6 patents #147 of 1,211Top 15%
Pioneer Electronic: 5 patents #387 of 1,840Top 25%
HA Hitachi America: 4 patents #17 of 97Top 20%
Samsung: 1 patents #49,284 of 75,807Top 70%
FA Fipa Frohwitter Intellectual Property Ag: 1 patents #5 of 18Top 30%
Overall (All Time): #7,218 of 4,157,543Top 1%
139
Patents All Time

Issued Patents All Time

Showing 76–100 of 139 patents

Patent #TitleCo-InventorsDate
6757478 Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal Hitoaki Owashi, Kyoichi Hosokawa, Takaharu Noguchi 2004-06-29
6731451 Information management apparatus Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more 2004-05-04
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
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
6321025 Method and apparatus for receiving and/or reproducing digital signal Hitoaki Owashi, Kyoichi Hosokawa, Takaharu Noguchi 2001-11-20
6292618 Image recording and reproducing apparatus Yasunori Ohara, Akira Saitou, Takeo Ohkouchi, Nobutaka Amada 2001-09-18
6249639 Digital information recording-reproducing apparatus Nobutaka Amada, Takao Arai, Takaharu Noguchi, Shigeru Yamazaki 2001-06-19
6204985 Information management apparatus Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more 2001-03-20
6201654 Method and apparatus for recording digital signal Hitoaki Owashi, Takaharu Noguchi, Kyoichi Hosokawa 2001-03-13
6195499 Magnetic recording and/or reproducing apparatus Nobutaka Amada, Hideo Nishijima, Hideo Zama, Kuniaki Hirayama 2001-02-27
6175683 Digital signal recording and reproduction apparatus suitable for recording and reproducing a compressed video signal Naozumi Sugimura 2001-01-16
6163644 Method and apparatus for receiving and/or reproducing digital signal Hitoaki Owashi, Kyoichi Hosokawa, Takaharu Noguchi 2000-12-19
6134384 Digital signal recording/reproducing apparatus and recording method Takaharu Noguchi, Hitoaki Owashi 2000-10-17
6085023 Magnetic recording and reproducing control apparatus Yuji Hatanaka, Yasunori Ohara, Hiroaki Tachibana, Yoshio Yamada, Nobutaka Amada 2000-07-04
6046872 Method and apparatus for recording digital signal Hitoaki Owashi, Takaharu Noguchi, Kyoichi Hosokawa 2000-04-04
6041161 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal Kyoichi Hosokawa, Hitoaki Owashi, Hiroaki Tachibana, Takaharu Noguchi 2000-03-21
6031677 Information management apparatus Hiroaki Ono, Kiyoshi Kano, Hideo Nishijima, Takao Arai, Takaharu Noguchi +5 more 2000-02-29
5930274 Information recording and reproduction apparatus to be controlled by temporal information Kouji Kaniwa, Hideo Nishijima, Nobutaka Amada, Takaharu Noguchi, Hiroaki Ono +4 more 1999-07-27