Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849311 | Immobilized electrolyte membrane | Kazuo Saeki, Koichi Kono | 1989-07-18 |
| 4840778 | Inorganic polysilazane and method of producing the same | Mikiro Arai, Takeshi Isoda | 1989-06-20 |