Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270483 | Liquid discharge regulator and liquid feeder equipped with the same | Keiichi Yamada, Hajime Nakazawa, Atsushi Yamamoto, Tatsuji Higashi | 2001-08-07 |
| 6231539 | Backflow prevention structure and a backflow prevention unit for a liquid medicine injection device | Yasuo Komatsu, Atsushi Yamamoto | 2001-05-15 |
| 4920730 | Coin wrapping apparatus | Shuji Nakanishi, Yoshiaki Uemizo | 1990-05-01 |