CA

Chiyo Akamatsu

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
HM Hitachi Maxell: 3 patents #330 of 1,211Top 30%
Overall (All Time): #322,177 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
9661363 Receiver set, information apparatus and receiving system Tetsuo Shinagawa, Yoshimichi Kudo 2017-05-23
9240897 Method of using AV devices and AV device system Tsukasa Hasegawa, Tamotsu Ito, Hidefumi Goto, Takaharu Noguchi, Yasunori Ohara 2016-01-19
8856819 Receiver set, information apparatus and receiving system Tetsuo Shinagawa, Yoshimichi Kudo 2014-10-07
8326129 Method of using AV devices and AV device system Tsukasa Hasegawa, Tamotsu Ito, Hidefumi Goto, Takaharu Noguchi, Yasunori Ohara 2012-12-04
8233504 Receiver set, information apparatus and receiving system Tetsuo Shinagawa, Yoshimichi Kudo 2012-07-31
7333717 Method of using AV devices and AV device system Tsukasa Hasegawa, Tamotsu Ito, Hidefumi Goto, Takaharu Noguchi, Yasunori Ohara 2008-02-19
7257132 Receiver set, information apparatus and receiving system Tetsuo Shinagawa, Yoshimichi Kudo 2007-08-14
7224886 Method of using AV devices and AV device system Tsukasa Hasegawa, Tamotsu Ito, Hidefumi Goto, Takaharu Noguchi, Yasunori Ohara 2007-05-29
7136910 Information device, information device system control method, and information device system Yoshikatsu Yoshino, Tsukasa Hasegawa, Shinichiro Fukushima, Hidefumi Goto 2006-11-14
6728765 Information device, information device system control method, and information device system Yoshikatsu Yoshino, Tsukasa Hasegawa, Shinichiro Fukushima, Hidefumi Goto 2004-04-27
6691150 Information device, information device system control method, and information device system Yoshikatsu Yoshino, Tsukasa Hasegawa, Shinichiro Fukushima, Hidefumi Goto 2004-02-10
6487589 Information device, information device system control method, and information device system Yoshikatsu Yoshino, Tsukasa Hasegawa, Shinichiro Fukushima, Hidefumi Goto 2002-11-26
6131111 Information device information device system control method, and information device system Yoshikatsu Yoshino, Tsukasa Hasegawa, Shinichiro Fukushima, Hidefumi Goto 2000-10-10
5867110 Information reporting system Akira Naito, Hiroshi Shimizu, Takahiko Nozoe 1999-02-02
5867281 Electronic mail system and method Takahiko Nozoe, Hideki Kuwamoto, Tadashi Kuwabara 1999-02-02