Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9166544 | Volume control apparatus with first and second controllers | — | 2015-10-20 |
| 8618403 | Tone control apparatus | Hiroyuki Fukuma | 2013-12-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9166544 | Volume control apparatus with first and second controllers | — | 2015-10-20 |
| 8618403 | Tone control apparatus | Hiroyuki Fukuma | 2013-12-31 |