Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741721 | Informing apparatus for mobile communication apparatus | Toshifumi Fukawatase, Kenichi Ooki | 2004-05-25 |
| 4996119 | Speaker cone plate and method of forming | Yoichi Yaguchi, Masakatsu Sakamoto | 1991-02-26 |