Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444857 | Process for producing vitamin A aldehyde and intermediate for producing the same | Shinzo Seko, Toshiya Takahashi | 2002-09-03 |
| 6355841 | Process for producing &bgr;-carotene | Shinzo Seko | 2002-03-12 |