Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6894952 | Timer of electric timepiece | Shigeru Morokawa, Ryoji Iwakura, Takakazu Yano, Masami Fukuda, Kazuo Sakamoto | 2005-05-17 |
| 6853219 | Charging circuit | Katsuyoshi Aihara, Ryoji Iwakura | 2005-02-08 |