Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9779862 | Magnetic substance and magnetic substance manufacturing method | Yoshihiro Ishikawa | 2017-10-03 |
| 9603940 | Metal salen complex derivative and process for production thereof | Yoshihiro Ishikawa, Hiroshi Sato | 2017-03-28 |
| 9592219 | Self-magnetic metal-salen complex compound | Yoshihiro Ishikawa | 2017-03-14 |