Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432518 | Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material | Masafumi Torii, Hiroaki Matsui, Kyoji Tsutsui, Toshiyuki Furuta, Tomohiko Beppu | 2002-08-13 |