Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359176 | Cationic surfactants, process for producing the same and utilization thereof | Masaki Nakamura, Jia-he Qian, Takeshi Munekiyo | 2002-03-19 |
| 5817839 | Double-chain type sulfated compounds having acid degradability and process for producing the same | Masaki Nakamura, Daisuke Ono, Jia-he Qian, Shigeo Mizutani, Takeshi Munekiyo | 1998-10-06 |