Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6229280 | Power tool charging system having a charge level indicator and charge control functions | Masahiko Sakoh, Masatoshi Sugiura, Yutaka Matsunaga, Tomoo Muramatsu | 2001-05-08 |
| 6191554 | Power tool charging system having battery reconditioning and battery capacity data updating functions | Shinichi Nakane, Yutaka Matsunaga, Tomoo Muramatsu | 2001-02-20 |
| 6066938 | Charging system including a charger and an electric power tool operating on an internal battery unit | Koki Hyodo, Manabu Sugimoto, Shin-ichi Nakane, Shingo Umemura | 2000-05-23 |