Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D500845 | Bidet toilet seat unit | Takashi Yamanaka, Hidehiro Nakashima, Touitirou Matsuura | 2005-01-11 |
| D496990 | Bidet toilet seat unit | Takashi Yamanaka, Hidehiro Nakashima, Takashi Honda | 2004-10-05 |
| D495794 | Bidet toilet seat unit | Takashi Yamanaka, Hidehiro Nakashima, Takashi Honda | 2004-09-07 |