| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | Taiwan | 3 | |
| #3 | China | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Republic of Korea | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Stereophonic systems | |
| #2 | Loudspeakers and microphones | |
| #3 | Sound-producing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamada Hareo | 11 |
| #2 | Murayama Yoshitaka | 5 |
| #3 | Hanawa Noriyuki | 4 |
| #4 | Saito Toshio | 4 |
| #5 | Kawana Kazuhiro | 4 |
| #6 | Goto Akira | 3 |
| #7 | Hareo Hamada | 2 |
| #8 | Takeoka Shigeto | 2 |
| #9 | Gotoh Akira | 2 |
| #10 | Yoshitaka Murayama | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2009041012A1 | Noise control system | |
| WO2008126343A1 | Sound collecting method and device | |
| TW200847826A | A sound receiving and playing method and device |