Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830672 | Zirconia-based coating composition | Kinji Yamada, Siniti Suyama, Momoko Okamura | 1989-05-16 |
| 4828945 | Solid electrolyte sheet and process for producing the same | Naoshi Yasuda, Shigeo Kondo, Tadashi Sotomura | 1989-05-09 |
| 4810599 | Structure suitable for solid electrochemical elements | Shigeo Kondo, Naoshi Yasuda, Tadashi Sotomura | 1989-03-07 |