| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 5 | |
| #3 | Germany | 3 | |
| #4 | Japan | 2 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Sweden | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Audio-visual technology | |
| #3 | Environmental technology | |
| #4 | Digital networks | |
| #5 | Foods and drinks | |
| #6 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Matsukata Kosuke | 17 |
| #2 | Tetsuo Katsube | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0118561A1 | High speed underground transport system. | |
| JPS5163765A | Anzenkamisorino kairyo | |
| US3934884A | Precision piece selector on gramaphone record | |
| GB1270764A | Improvements in or relating to road vehicles | |
| US3508497A | Underground high-speed transportation system | |
| US3502165A | Gas-electric driven vehicle with retractable wheels | |
| GB1092704A | Record changer adaptor | |
| US3427033A | Record changer adapter | |
| GB968449A | Record changer adapter | |
| US2744015A | Feed product |