| 6444172 |
Water quality meter and water quality monitoring system |
Masao Fukunaga, Koji Saito, Katsutoshi Yamada, Hideo Enoki, Sadao Mori +3 more |
2002-09-03 |
| 6398930 |
Water quality meter and water quality monitoring system |
Masao Fukunaga, Koji Saito, Katsutoshi Yamada, Hideo Enoki, Sadao Mori +3 more |
2002-06-04 |
| 6290908 |
Water quality meter and water monitoring system |
Masao Fukunaga, Koji Saito, Katsutoshi Yamada, Hideo Enoki, Sadao Mori +3 more |
2001-09-18 |
| 6245224 |
Water quality management system |
Hideo Enoki, Sadao Mori, Masao Fukunaga |
2001-06-12 |
| 5526698 |
Capacitance type electromagnetic flowmeter |
Yutaka Sakurai |
1996-06-18 |
| 5469746 |
Electromagnetic flow meter |
Masao Fukunaga, Yutaka Sakurai, Kouji Saito |
1995-11-28 |
| 5458003 |
Electromagnetic flow meter |
Yutaka Sakurai, Masao Fukunaga, Shigeo Nishino, Souzo Fujimoto |
1995-10-17 |
| 5400659 |
Electromagnetic flowmeter and manufacture method of same |
Kazuaki Yokoi, Masatsugu Arai, Akiomi Kohno, Yuji Yoshitomi, Yutaka Sakurai |
1995-03-28 |
| 5307687 |
Electromagnetic flowmeter |
Masatsugu Arai, Akiomi Kohno, Kazuaki Yokoi, Yuuji Yoshitomi, Yutaka Sakurai |
1994-05-03 |
| D319071 |
Plotter |
Masayuki Tamasaku, Tousaku Hattori, Masami Sakamoto, Yutaka Kaneko |
1991-08-13 |
| 4903045 |
X-Y plotter for non-perforated paper |
Masami Sakamoto, Ryoichi Magumo, Takao Kobari |
1990-02-20 |
| 4683480 |
X-Y plotter drive roller arrangement |
Masami Sakamoto, Ryoichi Nagumo |
1987-07-28 |
| 4577409 |
Pen changing apparatus for plotter |
Masami Sakamoto, Ryoichi Nagumo |
1986-03-25 |