Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7966676 | Toilet bowl flushing water tank device | Yoichiro Ueno, Eiji Fukuzawa, Haruki Matsuda | 2011-06-28 |
| 5362026 | Water flow control system | Hiroshi Kobayashi, Ryosuke Hayashi, Shoji Inokuchi | 1994-11-08 |
| 5341839 | Water flow control system | Hiroshi Kobayashi, Ryosuke Hayashi, Shoji Inokuchi | 1994-08-30 |
| 5224509 | Automatic faucet | Hiroshi Tanaka, Koji Morita, Koji Nakano | 1993-07-06 |
| 4768705 | Cold/hot water discharging apparatus | Osamu Tsutsui, Hirofumi Takeuchi, Keiji Hayashi, Shingo Tanaka | 1988-09-06 |
| 4739923 | Hot/cold water mixing device | Osamu Tsutsui, Hirofumi Takeuchi, Keiji Hayashi | 1988-04-26 |