Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489265 | Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium | Yoshihiko Hotta, Kunichika Moroboshi, Masafumi Torii, Hideyuki Kobori, Katsushi Sugiyama +4 more | 2002-12-03 |
| 6464797 | Method of separating electrophotographic carrier compositions and recycling the compositions | Yoshihiko Itoh, Hideyuki Santoh, Kunio Arai, Tadafumi Ajiri | 2002-10-15 |
| 6362130 | Reversible thermosensitive recording medium, card, label, disk, disk cartridge, tape cassette, method of producing the recording medium, and method of recording and erasing images using the same | Yoshihiko Hotta, Kunichika Morohoshi, Masafumi Torii, Hideyuki Kobori, Katsushi Sugiyama +4 more | 2002-03-26 |