Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880557 | Spray Lustering-cleansing agent | Sosaburo Ohara, Seigo Shinohara, Tetsuo Kijima | 1989-11-14 |
| 4842691 | Sizing agents in neutral range and sizing methods using the same | Masato Nakajima, Toshiaki Otsuki | 1989-06-27 |