Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8044698 | Liquid level detection apparatus | Kenichi Tanaka, Toshio Oike | 2011-10-25 |
| 8024969 | Liquid level detection device | Kenichi Tanaka, Toshio Oike | 2011-09-27 |
| 7952473 | Liquid level detecting apparatus | Kenichi Tanaka, Toshio Oike | 2011-05-31 |