| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 13 | |
| #2 | United States | 6 | |
| #3 | Taiwan | 5 | |
| #4 | EPO (European Patent Office) | 3 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Tools for connecting or disengaging | |
| #2 | Multi-purpose tools | |
| #3 | Grinding or polishing devices | |
| #4 | Unspecified technologies | |
| #5 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Izumisawa Nobuyuki | 23 |
| #2 | Izumisawa Hiroyoshi | 2 |
| #3 | Nobuyuki Izumisawa | 2 |
| #4 | Izumizawa Nobuyuk | 1 |
| #5 | Taniguchi Mineyasu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2020185587A | Sharp bending tool for hemming | |
| JP2018061981A | Pressing device for hemming processing and hemming processing method | |
| JP2008068379A | Dust sucking type air sanding machine | |
| JP2006346795A | Torque wrench | |
| US7036795B2 | Valve apparatus for air tool | |
| JP2004314262A | Ratchet wrench | |
| JP2004148480A | Sander abrasive pad | |
| JP2004106070A | Air impact wrench | |
| JP2004098260A | Air drill | |
| JP2003181773A | Ratchet wrench | |
| JP2002079473A | Ratchet wrench | |
| JP2002052478A | Ratchet wrench | |
| TW440490B | Portable bead cutter device | |
| JPH0811045A | Polishing tool of pneumatic driving source | |
| JPS606340A | Polishing machine |