Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681954 | Piperazine derivatives | Kenjiro Yamamoto, Atsushi Hasegawa, Masahiro Ando, deceased, Hitoshi Yamaguchi | 1997-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681954 | Piperazine derivatives | Kenjiro Yamamoto, Atsushi Hasegawa, Masahiro Ando, deceased, Hitoshi Yamaguchi | 1997-10-28 |