Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6719217 | Aromatizer | Hirotoshi Tawara, Takashi Yamada | 2004-04-13 |
| 6047435 | Cleaning cloth and cleaning apparatus | Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Harunobu Hirayama +1 more | 2000-04-11 |
| 5953784 | Cleaning cloth and cleaning apparatus | Youichi Suzuki, Keiji Abe, Yasuki Tsutsumi, Sachiko Aoki, Harunobu Hirayama +1 more | 1999-09-21 |
| D391711 | Handy mop | Masahito Hanaoka, Youichi Suzuki, Harunobu Hirayama | 1998-03-03 |