Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697374 | Pulse rate monitor | Keisuke Tsubata, Chiaki Nakamura, Kazumi Sakumoto, Naokatsu Nosaka, Motomu Hayakawa | 1997-12-16 |
| 5691556 | Step-up semiconductor integrated circuit and electronic equipment using the semiconductor integrated circuit | Yutaka Saito, Hiroshi Takahashi, Katsuhiro Horiguchi | 1997-11-25 |