Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807275 | Folding portable telephone apparatus | Tetsuya Kubo, Teruo Nanmoku, Mamoru Yoshida, Naokazu Nagasawa | 2004-10-19 |
| 6748243 | Folding portable telephone apparatus | Tetsuya Kubo, Naokazu Nagasawa | 2004-06-08 |
| 6137259 | Battery pack with water leakage detecting seal | Tetsuo Hirabayashi | 2000-10-24 |