Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760526 | Piston for internal combustion engine | Kwan Ho RYU, Sang Hyuk JUN, Woo-Seok Shim, In Cheol Yoo, Jang-Ik Park | 2020-09-01 |
| 10724466 | Piston for vehicle engine and method for manufacturing the same | Kwan Ho RYU, Jeong Keun LEE, Ju-Hyun Sun, Sang-Bean PARK, Jung-Hun JI | 2020-07-28 |
| 10682686 | Eco-mold apparatus for manufacturing piston, mold apparatus for manufacturing piston, and piston manufacturing method | Kwan Ho RYU, Jeong Keon LEE, Lee Cheol JI, Sang Min Lee | 2020-06-16 |
| 10100777 | Piston for internal combustion engine, and cooling channel core | In Cheol Yoo, Woo-Seok Shim, Sang Hyuk JUN, Jeong Keon LEE, Kwan Ho RYU | 2018-10-16 |
| 10060327 | Piston for internal combustion engine, and cooling channel core | Jang-Ik Park, Sang Hyuk JUN, Jeong Keon LEE, Kwan Ho RYU | 2018-08-28 |
| 9328823 | Steel piston having cooling channel without flash | Kwan Ho RYU, Jeong Keun LEE, Sang-Bean PARK, In Cheol Yoo | 2016-05-03 |