Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12431199 | Memory device and operating method of the memory device | — | 2025-09-30 |
| 12235147 | Apparatus and method for sensing water level | Sung-An Ha | 2025-02-25 |
| 12215895 | Carbon monoxide leak alerting device and method | Sung-An Ha, Jung-Jae Jang | 2025-02-04 |
| 12117206 | System and method for discharging carbon monoxide by using carbon monoxide leakage alarm device | Sung-An Ha, Jung-Jae Jang | 2024-10-15 |
| 12051314 | Gas and earthquake detector, gas and earthquake remote monitoring system using the same and method thereof | Sung Hwan Choi, Sung-An Ha | 2024-07-30 |
| 11578864 | Method of automatically cleaning boiler pipes | — | 2023-02-14 |
| 11462276 | Semiconductor memory device and operating method thereof | Hee Youl Lee | 2022-10-04 |
| 11408693 | System for automatically cleaning boiler pipes | — | 2022-08-09 |
| 11348647 | Memory device and method of operating the same | — | 2022-05-31 |
| 11333400 | Hot water storage-type boiler having both heat amount proportional control function and backflow prevention function | — | 2022-05-17 |
| 11320548 | Apparatus and method for detecting earthquake using accelerometer | Sung-An Ha | 2022-05-03 |
| 11149983 | Hot water boiler with vortex guide | — | 2021-10-19 |
| 11041662 | Instantaneous water heater having guide portion | — | 2021-06-22 |
| 11035588 | Boiler with heating blower | — | 2021-06-15 |
| 11022341 | Storage type electric water heater with hot air generating function | — | 2021-06-01 |
| 10928099 | Boiler with gas sensing and earthquake sensing function and control method thereof | Sung Hwan Choi | 2021-02-23 |
| 10900693 | Hot water storage boiler having scale prevention function | — | 2021-01-26 |
| 10551096 | Combined heat and power system with energy control module | Gi-Hyun Jang, Ki-Hwan Nam, Jong Hyun Shin, Jong Seok Park | 2020-02-04 |
| 10516388 | Voltage generator, voltage waveform generator, semiconductor device manufacturing apparatus, voltage waveform generation method, and semiconductor device manufacturing method | Hye Jin Kim, Hyun Bae Kim, Ju Hyun Kim, Ji Hwan Kim, Chan Hee Park | 2019-12-24 |
| 10474184 | Designed waveform generator for semiconductor equipment, plasma processing apparatus, method of controlling plasma processing apparatus, and method of manufacturing semiconductor device | Hyun Bae Kim, Sang-Yoon Soh, Jin Ho Kim | 2019-11-12 |
| 10159399 | Dust suction apparatus | Changno Yoon | 2018-12-25 |
| 10165054 | Control system and method for IoT boilers using central management server | Sung Hwan Choi | 2018-12-25 |
| 10104038 | Method of defining interface identifier (IID) of IPv6 address and a communication device operating the same | Yun Chul Choi, Yong Geun Hong | 2018-10-16 |
| 10034158 | Method of maintaining internet protocol (IP) connectivity in low power internet of things (IoT) communication device based on near field communication (NFC), and device operating the same | Yong Geun Hong | 2018-07-24 |
| 9877144 | Method for transmission of IPv6 packets over near field communication (NFC) and device operating the same | Yong Geun Hong, Myung Ki SHIN, Hyoung Jun Kim | 2018-01-23 |