Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859763 | Preparation process of dl-lactic acid-glycolic acid-copolymer | Hiroshi Takayanagi, Tadashi Kobayashi, Takayoshi Masuda | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859763 | Preparation process of dl-lactic acid-glycolic acid-copolymer | Hiroshi Takayanagi, Tadashi Kobayashi, Takayoshi Masuda | 1989-08-22 |