Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10122154 | Method for manufacturing spark plug using a jig having a varied shape recess to prevent displacement of the noble tip during welding | Hiroki Yamamoto | 2018-11-06 |
| 9671814 | Lever device | Yo Aoki | 2017-06-06 |
| 9233640 | Lever switch device | Hisashi Matsuhashi | 2016-01-12 |
| 7476130 | Connection structure for resistive element | Toshiaki Yokoyama | 2009-01-13 |