Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885002 | Brain ventricle shunt system | Yasuo Watanabe, Kenichi Yamakoshi | 1989-12-05 |
| 4875488 | System for measuring the volume of a part of a human body | Hiroshi Ito, Kenichi Yamakoshi | 1989-10-24 |
| 4862895 | Electronic blood pressure meter | Tsutomu Yamasawa, Kenichi Yamakoshi | 1989-09-05 |
| 4860761 | Pulse wave detecting apparatus for blood pressure measurement | Tsutomu Yamasawa, Kenichi Yamakoshi | 1989-08-29 |