Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641884 | Spiro-naphtho-oxazine compound and photosensitive materials using the same | Shinichi Sato, Hiroyoshi Yamaga, Nobuo Suzuki | 1997-06-24 |
| 5604163 | Synthetic silica glass powder | Hozumi Endo, Kazumi Kimura | 1997-02-18 |