Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8048010 | Massage nozzle and massage device | Takahiro Ohashi, Koichi Toyoda, Tomoko Negishi | 2011-11-01 |
| 6319390 | Method of and system for cleansing a toilet or urinal | Shuhei Kono, Kenji Tabata, Masakatsu Kiyohara, Makoto Hayakawa, Mitsuyoshi Kanno +1 more | 2001-11-20 |
| 5954939 | Electrolyzing apparatus and electrolyzing method for electrolyzing flowing water containing chlorine ions | Nobuhiko Kanekuni, Masakatsu Kiyohara, Kenji Tabata, Shuhei Kono, Makoto Hayakawa | 1999-09-21 |