Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852572 | Multi-electrode type electrocardiographic electrode structure | Yoshinao Nakahashi, Soichi Osada, Shinshichi Ichida | 1989-08-01 |
| 4852574 | Electrocardiogram electrode pad | Hirokatsu Inoue | 1989-08-01 |
| 4809699 | Electrocardiographic current derivation electrode | Yasuaki Onodera | 1989-03-07 |