| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 19 | |
| #2 | China | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Audio-visual technology | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yoshisue Kenji | 5 |
| #2 | Ishida Muneo | 4 |
| #3 | Yamashita Mitsuo | 2 |
| #4 | Abe Kiyoshi | 2 |
| #5 | Kugimoto Hidenori | 2 |
| #6 | Higasa Hirotaka | 2 |
| #7 | Ookubo Kenichi | 2 |
| #8 | Koyama Yozo | 1 |
| #9 | Hirano Tetsuya | 1 |
| #10 | Takuya Sato | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR100232591B1 | An electronic piano | |
| KR100241584B1 | Apparatus for adjusting sound volume of grand piano | |
| US5247864A | Display apparatus for electronic musical instrument |