| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 8,583 | |
| #2 | WIPO (World Intellectual Property Organization) | 470 | |
| #3 | United States | 457 | |
| #4 | China | 443 | |
| #5 | Republic of Korea | 202 | |
| #6 | EPO (European Patent Office) | 192 | |
| #7 | Germany | 96 | |
| #8 | Canada | 53 | |
| #9 | United Kingdom | 45 | |
| #10 | Taiwan | 30 | |
| #11 | France | 21 | |
| #12 | Spain | 15 | |
| #13 | Italy | 15 | |
| #14 | Brazil | 7 | |
| #15 | Australia | 6 | |
| #16 | India | 5 | |
| #17 | New Zealand | 5 | |
| #18 | Mexico | 3 | |
| #19 | Netherlands | 2 | |
| #20 | Sweden | 2 | |
| #21 | African Regional Industrial Property Organization | 1 | |
| #22 | Switzerland | 1 | |
| #23 | Denmark | 1 | |
| #24 | Hong Kong | 1 | |
| #25 | Philippines | 1 | |
| #26 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #27 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Engines, pumps and turbines | |
| #4 | Civil engineering | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Springs | |
| #2 | Vehicle suspension arrangements | |
| #3 | Servomotors | |
| #4 | Motor vehicles | |
| #5 | Dredging | |
| #6 | Unspecified technologies | |
| #7 | Venting or aerating devices | |
| #8 | Rotary-pistons | |
| #9 | Cycles | |
| #10 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kashima Mitsuhiro | 366 |
| #2 | Komamura Seiji | 265 |
| #3 | Kawasaki Haruhiko | 244 |
| #4 | Masamura Tatsuya | 240 |
| #5 | Suzuki Katsuhiro | 232 |
| #6 | Kata Katsukuni | 143 |
| #7 | Teraoka Takashi | 139 |
| #8 | Hidaka Toshihiko | 127 |
| #9 | Jo Tadashi | 124 |
| #10 | Nakada Etsuro | 121 |
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|---|---|---|
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| JP2015214257A | Height adjustment device for railway vehicle |