RI

Ryou Ikezawa

NK Nippon Hoso Kyokai: 1 patents #306 of 703Top 45%
Overall (All Time): #3,795,622 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5305420 Method and apparatus for hearing assistance with speech speed control function Akira Nakamura, Nobumasa Seiyama, Tohru Takagi, Eiichi Miyasaka 1994-04-19