Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818592 | Heat-sensitive recording material | Tsutomu Watanabe, Masayuki Iwasaki | 2004-11-16 |
| 6800588 | Thermal recording material | Masayuki Iwasaki, Takayuki Matsumoto, Tetsuo Takeuchi | 2004-10-05 |
| 6750174 | Heat sensitive recording material | Tsutomu Watanabe | 2004-06-15 |
| 6730632 | Heat-sensitive recording material | Tsutomu Watanabe, Masayuki Iwasaki | 2004-05-04 |
| 6720286 | Heat-sensitive recording material | Masayuki Iwasaki | 2004-04-13 |
| 6699816 | Heat-sensitive recording material | Masayuki Iwasaki, Tsutomu Watanabe | 2004-03-02 |