Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685880 | Leather modifier, process for modifying leather and modified tanned leather | Tetsuya Masutani, Masato Kuroi, Yasuo Itami, Masahiko Maeda, Norio Yanagisawa +1 more | 1997-11-11 |
| 5004554 | Fluorine-containing polyether and lubricant comprising the same | Takashi Tohzuka, Ikuo Yamamoto | 1991-04-02 |