Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5918325 | Flush toilet bowl | Kinya Arita, Shinji Shibata, Hiroyuki Matsushita | 1999-07-06 |
| 5502845 | Siphon-jet flush water supply system for toilet stool | Ryosuke Hayashi, Katsuichi Irifune, Yoshiki Ohta, Takashi Yoshioka, Osamu Tsutsui +5 more | 1996-04-02 |