| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United States | 10 | |
| #3 | China | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Electrical machinery and energy | |
| #3 | Basic communication technologies | |
| #4 | Computer technology | |
| #5 | Audio-visual technology | |
| #6 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Matsunaga Kaoru | 5 |
| #2 | Yamashita Mitsuo | 4 |
| #3 | Kira Yoshifumi | 4 |
| #4 | Katsuta Masanori | 2 |
| #5 | Okamoto Seiji | 2 |
| #6 | Ichihara Hikari | 2 |
| #7 | Kushimiya Kiyomichi | 2 |
| #8 | Iwase Masahiko | 1 |
| #9 | Takuya Satoh | 1 |
| #10 | Kato Ikuya | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2019304424A1 | Fingering display device and fingering display program | |
| US2017061938A1 | Key of keyboard instrument |