Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D692862 | Speaker | — | 2013-11-05 |
| D682247 | Relay device | — | 2013-05-14 |
| 8282054 | Stand for portable electronic device | Toyofumi Hayashi | 2012-10-09 |
| 7850484 | Connecting apparatus for connecting to an electronic apparatus | Toyofumi Hayashi | 2010-12-14 |
| D574810 | Speaker | — | 2008-08-12 |
| D430128 | Wireless telephone | Ichiro Hino | 2000-08-29 |
| D322252 | Audio amplifier | — | 1991-12-10 |
| D320989 | Digital audio disk player | Tatsuo Horikoshi | 1991-10-22 |