Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670458 | Oxide superconductor and method for producing the same | Zenji Hiroi, Yasuo Takeda, Toshio Takada, by Komichi Takada, administrator, by Jun Takada, administrator +1 more | 1997-09-23 |