Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4937155 | Sodium-sulphur cell, method of operating same and method of load levelling using the same | Hiromi Tokoi, Hisashi Souma | 1990-06-26 |
| 4440151 | Solar heat collector | Takanobu Yamamoto, Isao Sumida, Moriaki Tsukamoto, Kazutake Imani | 1984-04-03 |