Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632488 | Ink jet recording material | Yoshitaka Okumura, Takaaki Kohro, Yoshiharu Kawashima | 2003-10-14 |
| 6565951 | Ink jet recording sheet | Naonobu Sugiyama, Yoshitaka Okumura | 2003-05-20 |