Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7519175 | Integral microphone and speaker configuration type two-way communication apparatus | Ryuji Suzuki, Ryuichi Tanaka, Tsutomu Shoji, Noboru Shuhama | 2009-04-14 |
| 7386109 | Communication apparatus | Ryuji Suzuki, Ryuichi Tanaka, Tsutomu Shoji, Noboru Shuhama | 2008-06-10 |