Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391225 | Alkenylsuccini acid emulsion sizing agent | Hatanaka Shigeto | 1995-02-21 |
| 5306757 | Emulsified alkenylsuccinic acid sizing agent | Shigeto Hatanaka, Yoshio Takahashi | 1994-04-26 |
| 5219912 | Emulsified alkenylsuccinic acid sizing agent | Yoshio Takahashi, Junji Okazaki, Toshihiro Tahara | 1993-06-15 |