Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443909 | Microcapsule containing ultraviolet absorber | Ritsuo Mandoh, Takehiro Minami, Katsuhiko Ishida | 1995-08-22 |
| 5401708 | Heat-sensitive recording material | Yoshihiro Shimizu, Takuji Tuji, Ritsuo Mandoh | 1995-03-28 |
| 5272127 | Heat sensitive recording material using microcapsules containing ultraviolet absorber | Ritsuo Mandoh, Takehiro Minami, Katsuhiko Ishida | 1993-12-21 |