Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821556 | Process for producing heat sensitive recording material | Kazuo Watanabe, Hideki Tsuchida, Yutaka Isu | 2004-11-23 |
| 6784136 | Heat-sensitive recording material | Nobuyuki Iwasaki | 2004-08-31 |