Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4387150 | Fixable thermosensitive recording sheet | Kenji Yabuta, Akira Tanaka | 1983-06-07 |
| 4330785 | Thermal recording method | Kenji Yabuta, Yasuhiko Oiri, Chihaya Tanaka | 1982-05-18 |