Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589397 | Electric energy converting/storing method | Masaki Kuzumoto, Junji Hirotsuji, Shigeki Nakayama, Osamu Matsuoka, Masao Nozaki | 2003-07-08 |
| 6537508 | Electric energy converting/storing system | Masaki Kuzumoto, Junji Hirotsuji, Shigeki Nakayama, Osamu Matsuoka, Masao Nozaki | 2003-03-25 |