| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Germany | 3 | |
| #3 | Australia | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Brazil | 1 | |
| #6 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Grinding tools | |
| #5 | Pistons and sealings | |
| #6 | Accessories for machine tools | |
| #7 | Metal-working | |
| #8 | Making forged metal products | |
| #9 | Gearing | |
| #10 | Cyclically operating valves |
| # | Name | Total Patents |
|---|---|---|
| #1 | Murai Fukuo | 6 |
| #2 | Yokoyama Tokuji | 4 |
| #3 | Kondoh Yasuhiro | 2 |
| #4 | Suzuki Akemitsu | 2 |
| #5 | Noto Takashi | 1 |
| #6 | Matsui Yasuyoshi | 1 |
| #7 | Mataga Akira | 1 |
| #8 | Fujita Tomoyuki | 1 |
| #9 | Numao Tsutomu | 1 |