Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331015 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2025-06-17 |
| 11603347 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2023-03-14 |
| 11034643 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2021-06-15 |
| 10399922 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2019-09-03 |
| 10399923 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2019-09-03 |
| 9540306 | Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same | Nobushige Doisaki, Kazuhiko Hata, Shinji Tokiwa | 2017-01-10 |
| 9029584 | Method for producing oil containing highly unsaturated fatty acid using lipase | Nobushige Doisaki, Hideo Ikemoto, Kazuhiko Hata, Shinji Tokiwa | 2015-05-12 |