Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7633027 | Switch mechanism usable underwater | Katsuhisa Sakaguchi, Naoki Matsumoto | 2009-12-15 |
| 7598465 | Switch mechanism usable underwater | Katsuhisa Sakaguchi, Ikko Mori | 2009-10-06 |
| 7426338 | Switch mechanism usable underwater | Naoki Matsumoto, Ikko Mori | 2008-09-16 |