Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906733 | Process for preparing colorless rosin | Masao Maeda, Kiyoshi Kanagawa | 1990-03-06 |
| 4847010 | Process for preparing rosin ester with esterification and hydrogenation | Masao Maeda | 1989-07-11 |
| 4622357 | Pressure-sensitive adhesive compositions | Seiichi Tsuchida, Hiroari Hara | 1986-11-11 |
| 4618640 | Hot-melt adhesive compositions comprising a partially (fumarized and/or maleinized) disproportionated rosin ester tackifier | Seiichi Tsuchida, Hiroari Hara | 1986-10-21 |