Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11764020 | Pole component and circuit breaker comprising same | Han-Joo Lee, Hong Ik Yang | 2023-09-19 |
| 10614981 | Pole component assembly for circuit breaker | Han-Joo Lee, Hong Ik Yang | 2020-04-07 |
| 10389093 | Interlocking mechanism for circuit breaker | Hong Ik Yang | 2019-08-20 |
| 10153625 | Interlock device for preventing close during insertion or withdraw on circuit breaker in switch board | Han-Joo Lee, Hong Ik Yang | 2018-12-11 |
| 9825439 | Withdrawable interlock device of vacuum circuit breaker | Hong Ik Yang, Han-Joo Lee, Jun Youn Jo | 2017-11-21 |
| 9732543 | Door interlock device for transformer room of vacuum circuit breaker | Jong Doo Kim, Seung Pil Yang | 2017-08-15 |
| 9685282 | Door interlock device for vacuum circuit breaker | Seung Hwan Mun, Dae Soo Han, Seung Pil Yang | 2017-06-20 |
| 9679722 | Interlock apparatus of vacuum circuit breaker | Seung Hwan Mun, Dae Soo Han, Seung Pil Yang | 2017-06-13 |
| 9647450 | Fault current limiter | Seung Hyun Bang, Won Joon Choe, Min Jee KIM | 2017-05-09 |
| 9620938 | Switchboard applied with bushing-type current transformer | Seung Pil Yang, Dae Soo Han, Seung Hwan Mun, Jong Doo Kim | 2017-04-11 |
| 9425590 | Withdrawable-type circuit breaker | Jun Youn Jo, Hong Ik Yang, Seung Pil Yang, Seung Hwan Mun | 2016-08-23 |
| 8975546 | Circuit breaker provided with mechanical trip mechanism | Jong Doo Kim, Hong Ik Yang | 2015-03-10 |
| 8648271 | Position switch and circuit breaker having the same | In Kyum Kim, Seung Pil Yang, Hong Ik Yang, Yong Tae Kim | 2014-02-11 |
| 8604368 | Circuit breaker having cradle with a shutter safety device | In Kyum Kim, Seung Pil Yang, Hong Ik Yang | 2013-12-10 |
| 8575502 | Plug interlock device for circuit breaker and circuit breaker having the same | Hong Ik Yang, Seung Pil Yang, In Kyum Kim, Yong Tae Kim | 2013-11-05 |
| 8299378 | Position indicating device | In Kyum Kim | 2012-10-30 |
| 8299380 | Position indicating apparatus for circuit breaker and circuit breaker having the same | In Kyum Kim | 2012-10-30 |
| 8222552 | Run/test position indicator device of vacuum circuit breaker | Hyun-Jae Kim | 2012-07-17 |
| 8193464 | Micro switch | Sang Chul Lee, Sub Bae | 2012-06-05 |
| 8183480 | Withdrawable device of main circuit for vacuum circuit breaker | Hyun-Jae Kim | 2012-05-22 |
| 8183485 | Circuit breaker having automatic release linkage | — | 2012-05-22 |
| 8119942 | Circuit breaker having delaying function for rotation of cam | Hong Ik Yang | 2012-02-21 |
| 8063532 | Motor of spring charging device in air circuit breaker | — | 2011-11-22 |
| 7985936 | Apparatus for indicating closing operable state for air circuit breaker and air circuit breaker having the same | — | 2011-07-26 |
| 7977595 | Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same | Sang Chul Lee, Ki Hwan Kim, Hong Ik Yang | 2011-07-12 |