Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8957339 | Dome-shaped spring and switch using the same | Chikara Sekiguchi, Shigenori Inamoto | 2015-02-17 |
| 8389885 | Dome shaped spring and switch | Shigenori Inamoto, Chikara Sekiguchi | 2013-03-05 |