Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691272 | Carboxylate and heat-sensitive recording material using same | Mansuke Matsumoto, Nobuaki Sasaki, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1997-11-25 |
| 5627287 | Phthalide compound and a near infrared absorber and a recording material each comprising the same compound | Hiroyuki Sasaki, Shinzo Nawamoto, Jun Taniguchi, Toshihiro Masaoka, Sayuri Wada +1 more | 1997-05-06 |