Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9810570 | Liquid surface detection device | Hiroyuki Iryo, Yukio Ogasawara | 2017-11-07 |
| 9752919 | Liquid level detection device | Hiroyuki Iryo | 2017-09-05 |
| 9506799 | Liquid level detection device and method of manufacturing the same | Hiroyuki Iryo | 2016-11-29 |
| 7437929 | Liquid level detector | Shigeki Koide, Kiyoshi Enomoto, Tadao Nakagawa, Yoshihiro Kamimura, Tetsuya Satoh | 2008-10-21 |
| 6972685 | Liquid level sensor | Tetsuya Sato, Koichi Sato, Tadao Nakagawa, Kiyoshi Enomoto, Toshio Hayakawa | 2005-12-06 |