Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5313940 | Photo-electric pulse wave measuring probe | Cheng-tai Xie, Takuo Aoyagi | 1994-05-24 |
| 5278627 | Apparatus for calibrating pulse oximeter | Takuo Aoyagi, Yoshiaki Shindo, Masayuki Kato | 1994-01-11 |