Issued Patents 1989
Showing 1–3 of 3 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 |
| 4824262 | Unlubricated sliding member | Haruo Doi, Shoji Noda, Masao Kouzaki | 1989-04-25 |
| 4810734 | Process for producing composite material | Masaya Kawasumi, Masao Kohzaki, Yoshitsugu Kojima, Akane Okada | 1989-03-07 |