Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9825314 | Fuel cell and manufacturing method of expanded metal | Atsushi Maeda, Kazumi Sugita, Atsushi Ida, Keiji Hashimoto, Satoshi Futami | 2017-11-21 |
| 7069604 | Tankless western-style flush toilet | Katsunori Tomita, Kenichi Ito, Koji Miwa, Yasuhiro Shirai, Masataka Mizutani +4 more | 2006-07-04 |
| 6823535 | Tankless western-style flush toilet including control portion | Katsunori Tomita, Kenichi Ito, Koji Miwa, Yasuhiro Shirai, Masataka Mizutani +4 more | 2004-11-30 |