Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864608 | Echo suppressor | Takanori Miyamoto, Sumie Nakabayashi, Kazuhiro Kondo, Shinichi Niina | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864608 | Echo suppressor | Takanori Miyamoto, Sumie Nakabayashi, Kazuhiro Kondo, Shinichi Niina | 1989-09-05 |