Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8126175 | Hearing aid device | Makoto Tateno, Katsumi Tanaka | 2012-02-28 |
| 5987143 | Method and apparatus for erasing acoustic echo | Mikio Tohyama, Hirofumi Yanagawa | 1999-11-16 |
TO
Takatoshi Okuno
Rion Co.: 1 patents #63 of 139Top 50%
Overall (All Time): #2,086,535 of 4,157,543Top 55%
2
Patents All Time