| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 7 | |
| #2 | United States | 2 | |
| #3 | Australia | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Italy | 1 |
| # | Technology | |
|---|---|---|
| #1 | Manufacturing processes | |
| #2 | Spectacles | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kato Niro | 12 |
| Publication | Filing date | Title |
|---|---|---|
| JP2004077610A | Spectacle frame and spectacle hinge | |
| JPH10253930A | Glasses frame | |
| JPH09311300A | Spectacle temples | |
| JPH08220486A | Spectacle frame | |
| JPH06155014A | Brazing jig | |
| US4616544A | Cutting machine for preparing models for spectacle lenses | |
| JPS61146456A | Globe type lens cutting machine for eyeglasses | |
| JPS61109649A | Spectacle lens cutting machine | |
| US4256387A | Device for connecting lugs on metal rim of spectacle frame |