Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11596281 | Toilet device and toilet seat unit | Hideki Tamura, Hiroshi Kobayashi, Shinichi GOMITA, Keisuke Sakakibara | 2023-03-07 |
| 11525253 | Private part cleaning device and toilet | Hideki Tamura, Shinichi GOMITA | 2022-12-13 |
| 11391029 | Valve device with cleaning wire | Marin Marinov, Walter Pitsch, Eric B. Soberano, Koji Shimizu | 2022-07-19 |
| 9702130 | Toilet flush tank | Kouji FUKUYA, Naokazu Onishi, Ken Higuchi, Yuji Saito | 2017-07-11 |
| 9009877 | Drain duct air suction device for flush toilet | Koji Miwa, Hitomi Yamai, Ken Higuchi | 2015-04-21 |