R&D Capabilities of SJF
The R&D Center established in February 2005 continuously develops new technologies and methodologies for the fabrication of ultra-precision parts,
securing independent technological competitiveness. We have secured numerous intellectual property rights
through domestic and international patent applications and are undertaking various national R&D projects.
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Enhancing design and development capabilities
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Securing optimal production technology
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Developing strategic new technologies
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Acquiring specialized personnel
Owned Technologies
Based on years of experiences and knowhow, SJF is continuously progressing in technology development.
Precision machining
Optimal Complex forging
Cold forming
Warm cold forming,
Hot cold forming
Assembly
Achievements and Certifications of the R&D Center
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| Number of Patents/IPRs | Korea | International | Design |
|---|---|---|---|
| 30 | 18 | 7 | 5 |
Korea Patents
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| Number | Name of Invention | Registration Number | Registration Date |
|---|---|---|---|
| 1 | Inner tube manufacturing method and apparatus | 502780 | 2005. 07. 13 |
| 2 | Inputshaftmanufacturingmethodandapparatus | 10-0817044 | 2008. 03. 20 |
| 3 | Electrodemanufacturingmethodforcoldcathodefluorescentlampanditselectrode | 10-0867935 | 2008. 11. 04 |
| 4 | Electrodemanufacturing method for cold cathode fluorescent lamp and its electrode | 10-0867936 | 2008. 11. 04 |
| 5 | Rawmaterialcuttingdeviceforcold-formingprocess | 10-1215517 | 2012. 12. 18 |
| 6 | Apparatusandmethodforformingkeywayofrotatingbodymaterialusingmulti-stagecoldformingmachine | 10-1343566 | 2013. 12 .13 |
| 7 | Manufacturingmethodofweldingtipthroughcoldforming | 10-1577185 | 2015. 12. 08 |
| 8 | Formingmethod for forming a yoke of a shaft joint for an automobile steering device | 10-1580146 | 2015. 12. 18 |
| 9 | Manufacturingmethodofglowplughousinghavingextra-longaxishollowholeandglowplughousing | 10-1592253 | 2016. 02. 01 |
| 10 | Methodformanufacturingpinchyokeofanautomotivesteeringsystemusingacoldformer | 10-1592255 | 2016. 02. 01 |
| 11 | Manufacturingmethodofpipejointforautomobilesteeringsystem | 10-1632702 | 2016. 06. 16 |
| 12 | Tubeyokemanufacturingapparatus | 10-1685496 | 2016. 12. 06 |
| 13 | Tubeyokemanufacturingmethod | 10-1685497 | 2016. 12. 06 |
| 14 | Formingpinformanufacturingtubeyoke | 10-1738936 | 2017. 05. 22 |
| 15 | Manufacturingmethodforeccentricshaft | 10-1808560 | 2017. 12. 07 |
| 16 | Aformingtoolformanufacturingashaftyokeandashaftyokemanufacturedthereby | 10-1836126 | 2018. 03. 02 |
| 17 | SolenoidvalveforESCequippedwithpermanentmagnet | 10-2391955 | 2022. 04. 25 |
| 18 | PermanentmagnetsolenoidvalveforESCcapableofforwardandreversecircuitcontrol | 10-2531585 | 2023. 05. 08 |