Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532638 | Superconducting energy storage apparatus | Yukio Ishigaki, Takeshi Itoh, Hirokazu Misawa | 1996-07-02 |
| 5218505 | Superconductor coil system and method of operating the same | Yukio Ishigaki | 1993-06-08 |