Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885188 | Process for forming thin film of metal sulfides | Yo Hasegawa, Kazuyuki Okano, Hiroshi Hatase | 1989-12-05 |
| 4798758 | Foam glass having crust layer and method of producing same | Makoto Nagano, Tomoyoshi Hiraki, Akira Ueno, Shoji Takahashi, Shuhei Kobayashi +2 more | 1989-01-17 |