Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679835 | Modifier composition and a modified polymer | Nami Gyotoku, Tadashi Yamauchi, Nobuo Hisada | 1997-10-21 |
| 5523465 | Process for producing an unsymmetrical diester of .alpha., .beta.-unsaturated dicarboxylic acid | Tadashi Yamauchi, Seiji Yamashita, Nami Ohgaya | 1996-06-04 |