Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889885 | Composite material containing a layered silicate | Arimitsu Usuki, Tadashi Mizutani, Yoshiaki Fukushima, Megumi Fujimoto, Kenzo Fukumori +3 more | 1989-12-26 |
| 4810734 | Process for producing composite material | Masaya Kawasumi, Masao Kohzaki, Akane Okada, Osami Kamigaito | 1989-03-07 |