| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 14 | |
| #2 | Canada | 11 | |
| #3 | Germany | 9 | |
| #4 | United States | 9 | |
| #5 | Switzerland | 6 | |
| #6 | France | 6 | |
| #7 | United Kingdom | 2 | |
| #8 | Sweden | 2 | |
| #9 | Belgium | 1 | |
| #10 | Italy | 1 | |
| #11 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Mechanical elements | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Indexing scheme relating to hinges | |
| #2 | Unspecified technologies | |
| #3 | Punching metal | |
| #4 | Wing fittings | |
| #5 | Bolts for doors or windows | |
| #6 | Hinges for doors or windows | |
| #7 | Ignition and extinguishing | |
| #8 | Shafts | |
| #9 | Locks | |
| #10 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nakanishi Yoshitaka | 48 |
| #2 | Nakanishi Takashi | 2 |
| #3 | Nakanishi Hiroshi | 2 |
| #4 | Yoshitaka Nakanishi | 2 |
| #5 | Touge Mutsumi | 1 |
| #6 | Takashima Shige | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2004321754A | Artificial joint | |
| JP2004264795A | Apparatus for regulating image formation position and magnification | |
| JPS6355658A | Card electronic calculator provided with seal | |
| US4553138A | Fire alarm system | |
| JPS57112579A | Hinge | |
| JPS5414899A | Chain latch for door | |
| US4106800A | Chain latch for door | |
| JPS5327864A | Gas lighter | |
| JPS5231268A | Method to fix loose pin to hinge | |
| JPS52155848A | Door closer | |
| JPS52132490A | Method of sinking counter sink in plate blank | |
| JPS52107000A | Chain latch for door | |
| JPS5297896A | Door locking device with signal sound generator | |
| KR800001448B1 | Hinge producing method | |
| CA1025016A | Chain latch for door | |
| JPS5155858A | Chobanhentosono seizohoho | |
| CA964880A | Cigarette lighter | |
| GB1204045A | Improvements in rollers | |
| CA886977A | Apparatus for attaching a swing door provided with a door check | |
| CA878258A | Roller |