Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11661649 | Component for fuel injector and method for coating the same | Han Su Park, Heon Joon Park | 2023-05-30 |
| 10718039 | High strength spring steel having excellent corrosion resistance | Soon Woo Kwon, Hyuk Kim | 2020-07-21 |
| 10689736 | Ultra-high-strength spring steel for valve spring | Bong Lae Jo, Sang Min Song, Jae-Hyeok Shim | 2020-06-23 |
| 10544486 | Nickel alloys for exhaust system components | Min Woo Kang, Joong Kil Choe | 2020-01-28 |
| 10513765 | Stainless steel having excellent oxidation resistance at high temperature | Ik Soo Kim, Young Joon Kang | 2019-12-24 |
| 10494705 | Ultra high-strength spring steel | Hyung Oh Ban, Seung Hyun Hong, Chul-Woo Park | 2019-12-03 |
| 10487382 | High strength special steel | Jong Hwi Park, Dong-Lim Seo, Seung Hyun Hong | 2019-11-26 |
| 10487381 | Ultrahigh-strength spring steel | Min Woo Kang, Hye Min Jo, Seung Hyun Hong | 2019-11-26 |
| 10487380 | High-strength special steel | Yong Bo Sim, Seung Hyun Hong | 2019-11-26 |
| 10400324 | Method of treating composite piston pin and surface treated composite piston pin | June Ho Yang, Hee Sam Kang, Chi Hoon Choi, Sang Yoon Park, Jong Dae Lim +1 more | 2019-09-03 |
| 10329650 | High manganese steel | Seong Guk Son, Seung Hyun Hong, Soon Woo Kwon | 2019-06-25 |
| 10308996 | Hot stamping steel and producing method thereof | Moon Ki Bae, Seung Hyun Hong | 2019-06-04 |
| 10060014 | Bearing steel having improved fatigue durability and method of manufacturing the same | Si-Yup LEE, Young Sang Ko, Moon Ki Bae, Seung Hyun Hong | 2018-08-28 |
| 10000831 | Highly durable coil spring steel | Jeen PARK, Jong Hwi Park, Kyu Ho Lee | 2018-06-19 |
| 9957595 | Carburized alloy steel having improved durability and method of manufacturing the same | Moon Ki Bae, Seung Hyun Hong, Si-Yup LEE | 2018-05-01 |
| 9243310 | Coating material for aluminum die casting and method for coating the same | Seong Jin Kim, Seong-Hoon Lee | 2016-01-26 |
| 9181847 | Coating material for parts of engine exhaust system and method for manufacturing the same | — | 2015-11-10 |
| 9133543 | Coating material for aluminum die casting mold and method for manufacturing the same | — | 2015-09-15 |
| 9085028 | Method for manufacturing valve train parts using metal powder injection molding | — | 2015-07-21 |
| 8826880 | Valve for engine and method for treating surface thereof | Young Joon Kang, Chang-Hyun Shin, Jun Seok Lee | 2014-09-09 |
| 8746027 | Multi-layer mold coating | — | 2014-06-10 |