DJ

Dal Sik Jang

DC Doosan Infracore Co.: 6 patents #9 of 254Top 4%
DI Daewoo Heavy Industries: 1 patents #15 of 90Top 20%
DO Doosan: 1 patents #63 of 155Top 45%
📍 Seoul, KR: #7,153 of 39,741 inventorsTop 20%
Overall (All Time): #642,154 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9829013 Hydraulic system for construction machine Yong Lak Cho, Woo Yong Jung, Min Ha An, A Reum SEO, Sang-Woo Lee +1 more 2017-11-28
9618018 Hydraulic system for construction equipment Min Ha An, Woo Yong Jung, Yong Lak Cho, A Reum SEO, Kwang Ho Lim 2017-04-11
9580888 Apparatus and method for controlling oil hydraulic pump for excavator Min Ha Ahn, Woo Yong Jung, Hyeon Sik Ahn, Kwang Ho Lim 2017-02-28
9079755 Energy reclaiming system for electric forklift truck Dong-Ho Han 2015-07-14
8984875 Pump control operating system of construction machine 2015-03-24
8707690 Hydraulic pump controller for construction machine Young Sik Cho 2014-04-29
7430859 Fluid pump control system for excavators Ki Nam Jung 2008-10-07
6386346 Brake valve device for industrial vehicles Tae Kyung Kim, Jeong Hee Hong, Sung-ha Park 2002-05-14