Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844343 | Ultrasonic vibrator horn | Hitoshi Kurokawa, Kouji Nakayama | 1989-07-04 |
| 4799622 | Ultrasonic atomizing apparatus | Kiyoe Ishikawa, Kakuro Kokubo, Hitoshi Kurokawa, Daijiro Hosogai | 1989-01-24 |