| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 232 | |
| #2 | Japan | 197 | |
| #3 | EPO (European Patent Office) | 128 | |
| #4 | Republic of Korea | 114 | |
| #5 | Germany | 58 | |
| #6 | China | 26 | |
| #7 | United Kingdom | 14 | |
| #8 | France | 5 | |
| #9 | Italy | 2 | |
| #10 | Australia | 1 | |
| #11 | Russian Federation | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Surface technology and coating | |
| #5 | Environmental technology | |
| #6 | Materials and metallurgy | |
| #7 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Udagawa Tsunekazu | 281 |
| #2 | Inamura Susumu | 92 |
| #3 | Miyaoh Yoshio | 84 |
| #4 | Imai Toshihiro | 55 |
| #5 | Kinoshita Yuichi | 47 |
| #6 | Yamada Yoshio | 37 |
| #7 | Yasuda Kisho | 37 |
| #8 | Miyaou Yoshio | 32 |
| #9 | Kasuya Tadashi | 20 |
| #10 | Kinoshita Yuuichi | 19 |
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