JOYO ENGINEERING CO LTD has a total of 22 patent applications. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea, China and Taiwan. Its main competitors in its focus markets optics, electrical machinery and energy and semiconductors are ZHAOQING DUANZHOU HUSHUI ELECTROMECHANICAL TECH CO LTD, YOKOTA MASASHI and KRAPIVIN VLADIMIR LEONT EVICH.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 8 | |
| #2 | China | 7 | |
| #3 | Taiwan | 7 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Electrical machinery and energy | |
| #3 | Semiconductors | |
| #4 | Surface technology and coating | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nagata Masaharu | 8 |
| #2 | Tsuru Noriyuki | 5 |
| #3 | Koshihara Motoharu | 4 |
| #4 | Iwata Hirofumi | 4 |
| #5 | Takamune Yuka | 3 |
| #6 | Kazumasa Nasu | 3 |
| #7 | Hirofumi Iwata | 3 |
| #8 | Konuma Takaaki | 3 |
| #9 | Okuyama Kyoji | 3 |
| #10 | Nishimura Makoto | 3 |