| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 13 | |
| #2 | China | 4 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Electrical machinery and energy | |
| #5 | Optics | |
| #6 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Otsuka Takashi | 1 |
| #2 | Sasaki Kazuo | 1 |
| #3 | Uejima Toshimi | 1 |
| #4 | Shigeru Makita | 1 |
| #5 | Shibagaki Saeko | 1 |
| #6 | Kaijaki Masaru | 1 |
| #7 | Yuji Hashimoto | 1 |
| #8 | Miyazaki Hidenori | 1 |
| #9 | Shibata Fumio | 1 |
| #10 | Fujieda Shiro | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR970000115B1 | Switch device |