Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004899 | Reversible heat-sensitive recording material | — | 1999-12-21 |
| 5407892 | Carbonless copying paper | Yoshihide Murakami, Takeo Sugiyama | 1995-04-18 |
| 5288687 | Carbonless copying paper | Yoshihide Murakami, Takeo Sugiyama | 1994-02-22 |
| 4927971 | Desensitizer composition | Mitsuru Fuchigami, Mamoru Ishiguro | 1990-05-22 |