HO

Hiraku Okumura

Yamaha: 3 patents #20 of 230Top 9%
Overall (2011): #47,693 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7925006 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Toru Hirai, Mikio Tohyama, Yoshikazu Honji, Hiroshi Iriyama, Koji Niimi 2011-04-12
7925008 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus Toru Hirai, Mikio Tohyama, Yoshikazu Honji, Hiroshi Iriyama, Koji Niimi 2011-04-12
7899195 Adaptive howling canceller Hiroaki Fujita 2011-03-01