Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504915 | Electromagnetic relay | Yohei TAKAYAMA, Hiroki Arai | 2009-03-17 |
| 7017837 | Water discharge switching device | Youjirou Taketomi, Takafumi Miyagi | 2006-03-28 |
| 6858812 | Push-button switch | Schunkichi Sasaki, Satoru Takahashi, Masaki Sugihara, Yoshikazu Hirai, Tatsushi Yonezawa | 2005-02-22 |
| 6404652 | Relay terminal | Kazushige Matsuoka, Taisuke Ueda, Ryo Sugihara, Hirofumi Iwanaga, Tsuyoshi Maekawa | 2002-06-11 |