Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9064656 | Safety switch | Norifumi Obata, Takeo Yasui | 2015-06-23 |
| 7999200 | Safety switch | Takao Fukui, Takeo Yasui, Masaki Nobuhiro | 2011-08-16 |
| 7667149 | Safety switch | Takao Fukui, Takeo Yasui, Masaki Nobuhiro | 2010-02-23 |
| 7633029 | Safety switch | Takao Fukui, Norifumi Obata, Takeo Yasui | 2009-12-15 |