Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443909 | Microcapsule containing ultraviolet absorber | Takehiro Minami, Katsuhiko Ishida, Hisayoshi Mitoh | 1995-08-22 |
| 5401708 | Heat-sensitive recording material | Yoshihiro Shimizu, Takuji Tuji, Hisayoshi Mitoh | 1995-03-28 |
| 5395814 | Heat sensitive recording material | Tomoyuki Okimoto, Katsuhiko Ishida | 1995-03-07 |
| 5272127 | Heat sensitive recording material using microcapsules containing ultraviolet absorber | Takehiro Minami, Katsuhiko Ishida, Hisayoshi Mitoh | 1993-12-21 |
| 5132272 | Heat sensitive recording material | Katsuaki Yoshizawa, Yukio Takayama | 1992-07-21 |
| 5017545 | Heat sensitive recording material | Nobuo Kanda, Masaharu Nojima, Naoto Arai | 1991-05-21 |
| 4882310 | Heat-sensitive recording material with heat-sensitive color developing layer containing prismatic calcium carbonate | Naoto Arai, Masaharu Nojima | 1989-11-21 |