Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693061 | Light-permeable thermosensitive recording material | Hitoshi Shimbo, Hideo Suzaki, Masaru Shimada | 2004-02-17 |
| 6677273 | Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material | Hiroaki Matsui, Kyoji Tsutsui, Hitoshi Hattori, Toshiyuki Furuta, Tomohiko Beppu | 2004-01-13 |