Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5193746 | Self-cleaning nozzle | Yoshinari Iwamura, Akio Shimizu | 1993-03-16 |
| 4646977 | Spray nozzle | Yoshinari Iwamura, Toshio Teshima, Shinobu Miyahara, Shigetaka Uchida, Taizo Sera +1 more | 1987-03-03 |