Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978770 | Quaternary ammonium salts of dicyano substituted teriary alkylene diamines as bleach activators | Muneo Aoyagi, Kazuhiro Takanashi, Masaaki Yamamura, Moriyasu Murata, Hiroyuki Yamada +1 more | 1990-12-18 |
| 4915863 | Bleaching composition | Muneo Aoyagi, Kazuhiro Takanashi, Masaaki Yamamura, Moriyasu Murata, Hiroyuki Yamada +1 more | 1990-04-10 |