Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889833 | Granular inorganic moldings and a process for production thereof | Seishiro Nakamura, Katutoshi Oukami | 1989-12-26 |
| 4829026 | Glass ceramics | Katsuaki Takahashi, Yoshinari Miura, Akiyoshi Osaka | 1989-05-09 |