Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5130210 | Stabilized zirconia solid electrolyte and process for preparation thereof | Hiroyuki Iwasaki, Fumiya Ishizaki, Toshihiko Yoshida, Nobuaki Tagaya, Hiroshi Seto | 1992-07-14 |
| 4950562 | Solid electrolyte type fuel cells | Toshihiko Yoshida, Tsukasa Shima, Fumiya Ishizaki, Hiroyuki Iwasaki, Yoshiyuki Someya +2 more | 1990-08-21 |