| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 37 | |
| #2 | Republic of Korea | 7 | |
| #3 | United States | 7 | |
| #4 | Germany | 6 | |
| #5 | France | 3 | |
| #6 | United Kingdom | 3 | |
| #7 | Italy | 3 | |
| #8 | Netherlands | 3 | |
| #9 | Malaysia | 1 | |
| #10 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Semiconductors | |
| #3 | Machines | |
| #4 | Surface technology and coating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sekiya Shinji | 13 |
| #2 | Ono Takatoshi | 11 |
| #3 | Kichida Keigo | 5 |
| #4 | Yamada Kiyoshi | 5 |
| #5 | Tanaka Makoto | 5 |
| #6 | Kazuma Sekiya | 3 |
| #7 | Shinji Sekiya | 3 |
| #8 | Takatoshi Ono | 3 |
| #9 | Masatoshi Nanjo | 2 |
| #10 | Yusuke Nagai | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4521995A | Wafer attracting and fixing device | |
| GB2068274A | Grinding wheels and their manufacture | |
| GB2068273A | Grinding of flat surfaces | |
| GB2068275A | Grinding wheel | |
| NL8006599A | Grinding wheel for flat sheets and method for making thereof |