Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8620017 | Speaker and magnetic circuit | Satoshi Hachiya, Koji Maekawa | 2013-12-31 |
| 8041071 | Diaphragm and speaker device | Akihiko Furuto | 2011-10-18 |
SK
Sinsuke Konuma
Tohoku Pioneer: 2 patents #104 of 312Top 35%
Overall (All Time): #2,083,154 of 4,157,543Top 55%
2
Patents All Time