Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480708 | Variable attenuator, composite variable attenuator and mobile communication apparatus | Koji Tanaka | 2002-11-12 |
| 6414565 | Variable attenuator and mobile communication apparatus | Koji Tanaka, Norio Nakajima | 2002-07-02 |