Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654359 | Paper coating composition | Toshiyuki Hasegawa, Yoshifumi Yoshida, Akira Tanikawa | 1997-08-05 |
| 5521240 | Paper coating composition | Yoshifumi Yoshida, Toshiyuki Hasegawa, Akira Tanigawa, Akira Kawamura | 1996-05-28 |