KI

Ken Iwayama

Yamaha: 8 patents #321 of 2,001Top 20%
TO Toa: 7 patents #2 of 65Top 4%
Overall (All Time): #293,885 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10959020 Audio signal control circuit and audio signal control method Mitsutaka Goto, David Hatmaker 2021-03-23
8675649 Audio network system and method of detecting topology in audio signal transmitting system Nathan Bentall, Eamon Hughes, Peter Charles Eastty, Michael J. Smith, Peter Damien Thorpe +1 more 2014-03-18
8554347 Remote audio amplifier monitoring system Akio Suyama, Takaaki Muto, Naohide Kohyama 2013-10-08
8401680 Amplifier system Takaaki Muto, Takaaki Makino, Naohide Kohyama, Akihiko Suyama 2013-03-19
8363845 Speaker array apparatus and signal processing method therefor Takashi Yamakawa, Kenichi Tamiya, Koji Kushida 2013-01-29
8194904 Speaker system with broad directivity 2012-06-05
8165334 Speaker system and speaker cluster system 2012-04-24
8155350 Amplifier controller Akio Suyama, Takaaki Muto, Naohide Kohyama 2012-04-10
7840024 Wide dispersion speaker system and cover mounting structure for instrument directly mounted to flat portion Takashi Nishino 2010-11-23
7598461 Electronic apparatus mountable on rack Yoshikuni Kitamura 2009-10-06
7401681 Mounting support device for ceiling embedded speaker system Takashi Nishino 2008-07-22
7324656 Wide dispersion speaker system and cover mounting structure for instrument directly mounted to flat portion Takashi Nishino 2008-01-29
D531986 Loudspeaker housing Shin Azumi 2006-11-14
D492286 Loudspeaker Shin Azumi, Takashi Nishino 2004-06-29
6658128 Horn loudspeaker Tsutomu Yoshioka, Yasuhiro Fukunaka, Hiroshi Kubota 2003-12-02
6580801 Loudspeaker apparatus Tsuyoshi Takagi, Hiroshi Kubota 2003-06-17