Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D684952 | Earphone | — | 2013-06-25 |
| D673522 | Headset | — | 2013-01-01 |
| D669879 | Recording device | — | 2012-10-30 |
| D662912 | Headset | Daisuke Iseki | 2012-07-03 |
| D646665 | Speaker box | — | 2011-10-11 |
| D578085 | Television receiver | — | 2008-10-07 |
| D568842 | Television receiver | — | 2008-05-13 |
| D564988 | Television receiver | — | 2008-03-25 |
| D556706 | Television receiver | Takuya Niitsu | 2007-12-04 |
| D541234 | Television receiver | Kazuki Isono | 2007-04-24 |
| D522995 | Disc player | — | 2006-06-13 |