Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805155 | Speed control circuit for mechanical scan ultrasonic imaging apparatus | Masaaki Ichiki, Kazuhiko Shibata | 1989-02-14 |
MS
Masaaki Shiraishi
Overall (1989): #78,809 of 140,708Top 60%
1
Patents 1989