Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886904 | Polyprenyl composition or compounds and process for the production thereof | Yasuyuki Tanaka, Koichi Ibata, Yoichi Ninagawa, Takashi Nishida | 1989-12-12 |
| 4812443 | Methods for enhancing differentiation and proliferation of hematopoietic progenitor cells | Fumimaro Takak, Akio Urabe, Michiya Shimamura | 1989-03-14 |