Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7747033 | Acoustic tube and directional microphone | — | 2010-06-29 |
| D601124 | Wireless headset | Hiroyuki Matoba, Koichiro Tanoue | 2009-09-29 |
| 7496208 | Wind shield and microphone | — | 2009-02-24 |
| D585048 | Wireless headphone transmitter | Hiroyuki Matoba, Koichiro Tanoue | 2009-01-20 |
| 7471802 | Boundary microphone | Hiroshi Akino | 2008-12-30 |
| 6757401 | Microphone holder | Osamu Kono | 2004-06-29 |
| 6578805 | Microphone holder instrument, and support plate for supporting at least a pair of microphone holder instruments | — | 2003-06-17 |
| 6018585 | Waterproof microphone | Hiroshi Akino | 2000-01-25 |