| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 218 | |
| #2 | United States | 24 | |
| #3 | EPO (European Patent Office) | 17 | |
| #4 | China | 12 | |
| #5 | Republic of Korea | 12 | |
| #6 | WIPO (World Intellectual Property Organization) | 8 | |
| #7 | Australia | 3 | |
| #8 | Brazil | 3 | |
| #9 | Canada | 3 | |
| #10 | Germany | 3 | |
| #11 | United Kingdom | 2 | |
| #12 | France | 1 | |
| #13 | India | 1 | |
| #14 | Italy | 1 | |
| #15 | Mexico | 1 | |
| #16 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Textiles and paper | |
| #4 | Machine tools | |
| #5 | Machines | |
| #6 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Cylinders for combustion engines | |
| #3 | Spinning | |
| #4 | Punching metal | |
| #5 | Unspecified technologies | |
| #6 | Nails | |
| #7 | Pipes | |
| #8 | Unspecified technologies | |
| #9 | Venting or aerating devices | |
| #10 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ueda Kosaku | 100 |
| #2 | Yoshino Nobuo | 68 |
| #3 | Ueta Kosaku | 64 |
| #4 | Nakano Yuzuru | 17 |
| #5 | Watanabe Hideo | 16 |
| #6 | Okano Jun | 16 |
| #7 | Yamaoka Yoshikiyo | 13 |
| #8 | Yamada Hirotsugu | 13 |
| #9 | Tabata Shunichi | 13 |
| #10 | Kondo Akira | 13 |
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