| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 10 | |
| #2 | Australia | 7 | |
| #3 | Brazil | 3 | |
| #4 | Hong Kong | 2 | |
| #5 | United States | 2 | |
| #6 | South Africa | 2 | |
| #7 | India | 1 | |
| #8 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Bolts for doors or windows | |
| #4 | Punching metal | |
| #5 | Wing fittings | |
| #6 | Hinges for doors or windows | |
| #7 | Locks | |
| #8 | Ignition and extinguishing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakanishi Y | 13 |
| #2 | Nakanishi Yoshitaka | 5 |
| Publication | Filing date | Title |
|---|---|---|
| KR810002031B1 | Method for forming counter-sunk hole in a base material | |
| GB1533394A | Sash lock | |
| GB1524229A | Sash lock | |
| ZA7300167B | Improvement in cigarette lighter | |
| US3778866A | Door closer | |
| GB1356029A | Door fastening device | |
| GB1315014A | Hinge |