Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358876 | Oxygen indicator | Yoshiaki Inoue, Hidetoshi Hatakeyama | 1994-10-25 |
| 5286407 | Oxygen absorbent composition and method of preserving article with same | Yoshiaki Inoue, Shigeru Murabayashi, Kazuo Fujinami, Akira Naito | 1994-02-15 |