Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441105 | Synthetic fiber treatment agent composition | Tsutomu Naganawa, Masaru Ozaki, Isao Ona | 2002-08-27 |
| 6409934 | Polyester fiber treatment agent composition | Tsutomu Naganawa, Isao Ona | 2002-06-25 |
| 6398860 | Sizing agent composition for printing paper | Isao Ona, Hiroki Ishikawa, Tsutomu Naganawa | 2002-06-04 |