Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875010 | Circuit for detecting AC magnetic field due to magnetic resonance with a variable resistance for noise suppression | Koichi Yokosawa, Etsuji Yamamoto, Hideaki Nakane, Masao Yabusaki | 1989-10-17 |
| 4853636 | NMR imaging method | Etsuji Yamamoto, Hideki Kohno | 1989-08-01 |