Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4912170 | Process for producing a modified styrene polymer | Tadashi Niwa, Masayuki Kato, Yoshio Taguchi, Chihiro Imai, Tokuo Makishima | 1990-03-27 |
| 4801654 | Block copolymer containing block from tetrahydrofuran | Tokuo Makishima, Satoshi Ueki, Chihiro Imai | 1989-01-31 |
| 4705830 | Block copolymer containing tetrahydrofuran block | Tokuo Makishima, by Satoshi Ueki, legal representative, by Chichiro Imai, legal representative | 1987-11-10 |