| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | Republic of Korea | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | China | 2 | |
| #5 | Taiwan | 2 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Materials and metallurgy | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Electrical machinery and energy | |
| #6 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yokoyama Yoshihiko | 11 |
| #2 | Inoue Akihisa | 11 |
| #3 | Kameyama Motohiro | 11 |
| #4 | Kawai Yoshiaki | 6 |
| #5 | Nagata Masaki | 5 |
| #6 | Ozaki Masayuki | 3 |
| #7 | Akutsu Isao | 2 |
| #8 | Zuchida Kenichi | 1 |
| #9 | Kimura Gazyuki | 1 |
| #10 | Akutso Isao | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP2774702A1 | Arc melting furnace and arc melting method for substance to be melted | |
| WO2011155155A1 | Arc melting furnace device | |
| WO2009019765A1 | Cold-cathode ionization gauge | |
| KR20010019198A | Evacuator |